CN111058197A

CN111058197A - Pattern machine

Info

Publication number: CN111058197A
Application number: CN201910660232.2A
Authority: CN
Inventors: 陈中华
Original assignee: Changzhou Zhigu Electrical And Mechanical Technology Co ltd
Current assignee: Changzhou Zhigu Electrical And Mechanical Technology Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-04-24

Abstract

The invention discloses a pattern sewing machine which comprises a worktable mechanism, a sewing mechanism, an X-direction driving mechanism, a Y-direction driving mechanism, a template quick assembly and a template assembly. The worktable mechanism comprises a main frame and a worktable plate. The workbench plate is arranged on the main frame. The sewing mechanism comprises a sewing machine head which is fixedly arranged on the main frame. The X-direction driving mechanism and the Y-direction driving mechanism are arranged on the main frame, and the X-direction driving mechanism and the Y-direction driving mechanism drive the template quick-assembly component to drive the template component to move. The key points are as follows: the template quick assembly fixing device further comprises a template replacing device, and the template assembly is conveyed to the template quick assembly by the template replacing device to be fixedly connected or taken out from the template quick assembly.

Description

Pattern machine

Technical Field

The invention relates to the technical field of sewing machines, in particular to a pattern sewing machine.

Background

The safety air bag system is a passive safety protection system, and can be used together with a seat belt to provide effective anti-collision protection for passengers. When the automobile collides, the automobile safety airbag (airbag) can reduce the head injury rate by 25 percent and the face injury rate by about 80 percent. The head airbag is also called a side airbag, and pops up and covers the side of the B column, the window glass, the side supporting buckle of the safety belt and other objects which are easy to cause collision injury to human bodies during collision, so that the driver and passengers are separated from the objects to achieve the effect of protecting the driver and passengers. The side air curtain has longer length, larger sewing area and complex sewing stitches, and is usually sewn by a large-scale pattern sewing machine. The existing pattern sewing machine generally comprises a working table mechanism, a sewing mechanism arranged on the working table mechanism, and an X-direction and Y-direction driving mechanism for driving a sewing template. Sewing mechanisms, including sewing machine heads and core-changing mechanisms, have been well-established. Each equipment manufacturer usually purchases ready-made sewing mechanisms, and then designs corresponding worktable mechanisms and X-direction and Y-direction driving mechanisms according to the size of a stroke range. When sewing, the sewing machine head is not moved, and the corresponding sewing template is driven by the X-direction and Y-direction driving mechanisms to move on the worktable mechanism according to sewing stitches. When the sewing mechanism sews the air bag, usually after one sewing is finished, the sewing template is taken down, the sewed air bag is taken out from the sewing template, then the next air bag to be sewed is put in the sewing template, and the sewing template is put on a pattern sewing machine for sewing after being fixed. Therefore, the sewing time is short for workers to wait, and the production efficiency is low.

Disclosure of Invention

The invention aims to provide a pattern sewing machine for sewing an air bag, which has a simple structure and can improve the working efficiency.

The basic technical scheme for realizing the purpose of the invention is as follows: a pattern sewing machine comprises a worktable mechanism, a sewing mechanism, an X-direction driving mechanism, a Y-direction driving mechanism, a template quick assembly and a template assembly. The worktable mechanism comprises a main frame and a worktable plate. The workbench plate is arranged on the main frame. The sewing mechanism comprises a sewing machine head which is fixedly arranged on the main frame. The X-direction driving mechanism and the Y-direction driving mechanism are arranged on the main frame, and the X-direction driving mechanism and the Y-direction driving mechanism drive the template quick-assembly component to drive the template component to move. The structure is characterized in that: the template quick assembly fixing device further comprises a template replacing device, and the template assembly is conveyed to the template quick assembly by the template replacing device to be fixedly connected or taken out from the template quick assembly.

The technical scheme based on the basic technical scheme is as follows: the die change device has two. There are also two template assemblies. One mold changing device is used for placing the airbag to be sewn on one template assembly, the other template assembly with the airbag to be sewn is prepared to be taken down from the template quick assembly, and the two mold changing devices alternately convey the template assemblies and take down the template assemblies.

The technical scheme based on the corresponding technical schemes is as follows: the X-direction driving mechanism comprises an X-direction mounting seat, an X-direction driving motor, a ball spline, an X-direction gear, an X-direction rack, an X-direction linear guide rail and an X-direction connecting seat assembly. The X-direction connecting seat assembly is arranged on the X-direction mounting seat in a left-right sliding mode through the X-direction linear guide rail. The X-direction rack is fixedly arranged on the upper part of the rear side of the X-direction connecting seat assembly in the left-right direction and meshed with the X-direction gear. The X-direction driving motor drives the X-direction gear to rotate through the ball spline, so that the X-direction connecting seat assembly moves left and right. The spline shaft of the ball spline shaft can slide in the forward and backward directions. The template quick assembly is fixedly arranged on the X-direction connecting seat assembly.

The Y-direction driving mechanism comprises a Y-direction driving motor, a Y-direction main transmission assembly, a Y-direction driven transmission assembly, a Y-direction guide assembly and a Y-direction mounting seat. The Y-direction driven transmission assemblies are four groups, two groups of Y-direction driven transmission assemblies are symmetrically arranged on the left part of the main frame, and the other two groups of Y-direction driven transmission assemblies are symmetrically arranged on the right part of the main frame. The Y-direction guide assemblies are four groups, and two groups of Y-direction guide assemblies are symmetrically arranged on the left part of the main frame and are positioned between the corresponding two groups of Y-direction driven transmission assemblies. The other two groups of Y-direction driven transmission assemblies are symmetrically arranged on the right part of the main frame and are positioned between the two corresponding groups of Y-direction driven transmission assemblies.

The X-direction connecting seat assembly is horizontally and fixedly connected to the four Y-direction mounting seats along the left-right direction. And the Y-direction driving motor drives each corresponding Y-direction mounting seat to synchronously move back and forth along the Y-direction guide component through the Y-direction main transmission component and each Y-direction driven transmission component, so that the X-direction mounting seat moves back and forth.

The technical scheme based on the corresponding technical schemes is as follows: the X-direction driving mechanism further comprises a pinch roller. The pinch roller adopts cam driven bearing, and the pinch roller rotates and sets up on X to the mount pad, and its axis of rotation and the mutual parallel arrangement of axis of rotation of X to the gear, and the pinch roller is spacing to X to the rack from the top, and with X to rack rolling contact.

The technical scheme based on the corresponding technical schemes is as follows: the template quick assembly components are four groups, the four groups of template quick assembly components have the same structure and respectively comprise a template positioning plate, a template positioning seat, a positioning pin and a positioning pin driving mechanism. The X-direction connecting seat assembly of the X-direction driving mechanism comprises a left-side X-direction connecting seat, a right-side X-direction connecting seat and a middle X-direction connecting seat. The left X-direction connecting seat and the right X-direction connecting seat are identical in structure, and the left X-direction connecting seat and the right X-direction connecting seat are sequentially and fixedly arranged on the corresponding sliding blocks on the X-direction linear guide rail from left to right. The middle X-direction connecting seat is fixedly connected with the left X-direction connecting seat and the right X-direction connecting seat respectively and is used for fixedly connecting the left X-direction connecting seat and the right X-direction connecting seat.

The four groups of template quick-assembly assemblies are sequentially arranged on the front side of the X-direction connecting seat assembly from left to right. Each template positioning plate is fixedly arranged on the corresponding left X-direction connecting seat and the right X-direction connecting seat. The template positioning seat is fixedly arranged on the lower part of the front side of the template positioning plate, a pin shaft hole penetrating through the template positioning seat is arranged on the template positioning seat, and a guide sleeve is arranged in the pin shaft hole. The positioning pin driving mechanism adopts an air cylinder, is fixedly arranged on the upper part of the front side of the template positioning plate and is positioned above the template positioning seat, a piston rod of the positioning pin driving mechanism extends downwards, the positioning pin is fixedly arranged on the end head of the piston rod and is coaxially arranged with a guide sleeve of the template positioning seat, and the positioning pin driving mechanism drives the positioning pin to move up and down.

The technical scheme based on the corresponding technical schemes is as follows: the two die change devices are divided into a left die change device and a right die change device according to the left and right positions of the two die change devices.

The left die changing device comprises a left workbench assembly, a left Y-direction driving mechanism and a left template quick assembly. The left workbench component comprises a left rack and a left discharge bedplate. The left discharging bedplate is horizontally and fixedly arranged on the left rack and is level with the working bedplate. The left Y-direction driving mechanism comprises a left Y-direction driving motor, a left Y-direction main transmission assembly, a left Y-direction driven transmission assembly and a left Y-direction guide assembly. The left Y-direction driven transmission assemblies are provided with three groups, and the three groups of left Y-direction driven transmission assemblies are sequentially arranged on the upper part of the left rack from left to right. The left Y-direction guide assembly comprises three groups, and the three groups of left Y-direction guide assemblies are sequentially arranged on the left rack from left to right and are positioned on the right side of the corresponding 1 group of left Y-direction driven transmission assemblies. Three sets of left side template fast-assembling subassemblies. And the three groups of left template quick-assembly components are respectively arranged on the corresponding 1 group of left Y-direction driven transmission components, and a left Y-direction driving motor drives each corresponding left template quick-assembly component to synchronously move back and forth along the left Y-direction guide component through the left Y-direction main transmission component and each left Y-direction driven transmission component.

The right die changing device comprises a right workbench component, a right Y-direction driving mechanism, a right movable platen component, a right template quick assembly group and a right synchronous connecting plate. The right workbench component comprises a right rack and a right discharge bedplate. The right discharging bedplate is horizontally and fixedly arranged on the right rack and is level to the working bedplate. The right Y-direction driving mechanism comprises a right Y-direction driving motor, a right Y-direction main transmission assembly, a right Y-direction driven transmission assembly and a right Y-direction guide assembly. The right Y-direction driven transmission assemblies are provided with three groups, and the three groups of right Y-direction driven transmission assemblies are sequentially arranged on the upper part of the right rack from left to right. The right Y-direction guide assemblies are provided with three groups, and the three groups of right Y-direction guide assemblies are sequentially arranged on the right rack from left to right and are positioned on the left side of the corresponding 1 group of right Y-direction driven transmission assemblies. There are three sets of right side template fast-assembling subassemblies. And the three groups of right side template fast-assembling components are respectively arranged on the corresponding 1 group of right side Y-direction driven transmission components. And a right Y-direction driving motor drives each corresponding right template quick assembly component to synchronously move back and forth along the right Y-direction guide component through the right Y-direction main transmission component and each right Y-direction driven transmission component. The distance between the three groups of right side template quick-assembly components is the same as the distance between the three groups of left side template quick-assembly components.

The technical scheme based on the corresponding technical schemes is as follows: the left die changing device also comprises a left synchronous connecting plate. The three groups of left side template fast-assembling components have the same structure and respectively comprise a left side template positioning seat, a left side positioning pin and a left side positioning pin driving mechanism. The left side template positioning seat is fixedly arranged on the corresponding left side Y-direction guide assembly, a pin shaft hole penetrating through the left side template positioning seat is formed in the left side template positioning seat, and a left side guide sleeve is arranged in the pin shaft hole. The left side locating pin actuating mechanism adopts the cylinder, and left side locating pin actuating mechanism is fixed to be set up on left side Y to guide assembly, is located the below of left side template positioning seat, and its piston rod upwards stretches out, and the left side locating pin is fixed to be set up on the end of piston rod, with the coaxial setting of left side uide bushing of left side template positioning seat, by left side locating pin actuating mechanism drive left side locating pin up-and-down motion. The left synchronous connecting plate is horizontally arranged on the upper side of the left discharging bedplate in the left-right direction and is fixedly connected with the upper parts of the front sides of the left template mounting seats of the three groups of left template quick-assembly components. And a template taking proximity switch is arranged on the left synchronous connecting plate of the two groups of left template fast-assembling components.

The right die changing device also comprises a right synchronous connecting plate. The three groups of right side template fast-assembling components have the same structure and respectively comprise a right side template positioning seat, a right side positioning pin and a right side positioning pin driving mechanism. The right side template positioning seat is fixedly arranged on the corresponding right side Y-direction guide assembly, a pin shaft hole penetrating through the right side template positioning seat is formed in the right side template positioning seat, and a right side guide sleeve is arranged in the pin shaft hole. The right side positioning pin driving mechanism adopts an air cylinder, is fixedly arranged on the right side Y-direction guide assembly and is positioned below the right side template positioning seat, a piston rod of the right side positioning pin driving mechanism extends upwards, the right side positioning pin is fixedly arranged on the end of the piston rod and is coaxially arranged with a right side guide sleeve of the right side template positioning seat, and the right side positioning pin driving mechanism drives the right side positioning pin to move up and down. The right synchronous connecting plate is horizontally arranged on the upper side of the right discharging bedplate in the left-right direction and is fixedly connected with the upper parts of the front sides of the right template mounting seats of the three groups of right template quick assembly components. And a template taking proximity switch is arranged on the right synchronous connecting plate of the two right template fast-assembling assemblies.

The technical scheme based on the corresponding technical schemes is as follows: the left die change device also comprises a left movable platen assembly. The left movable bedplate component comprises a turnover bedplate, a turnover bedplate rack and a bedplate driving mechanism. The turnover table plate is fixedly arranged on the turnover table plate frame. The left side of the turnover table plate frame is hinged to the upper portion of the right side of the left side rack, the table plate driving mechanism comprises two cylinders, the two cylinders are hinged to the front portion and the rear portion of the right side of the left side rack through respective cylinder bodies, and the ends of piston rods of the two cylinders are hinged to the front portion and the rear portion of the right portion of the lower side of the turnover table plate frame respectively. Therefore, the bedplate driving mechanism drives the turnover bedplate rack to be upward and horizontal, so that the turnover table is connected with the left discharge bedplate and is parallel to the left discharge bedplate or drives the right part of the turnover bedplate to be downward inclined.

The right die change device also comprises a right movable platen assembly. The right movable platen assembly comprises a turnover platen, a turnover platen frame and a platen driving mechanism, wherein the turnover platen is fixedly arranged on the turnover platen frame. The right side of the turnover table frame is hinged to the upper portion of the left side of the right side rack, the table driving mechanism comprises two cylinders, the two cylinders are hinged to the front portion and the rear portion of the left side of the right side rack through respective cylinder bodies, and the ends of piston rods of the two cylinders are hinged to the front portion and the rear portion of the left portion of the lower side of the turnover table frame respectively. Therefore, the bedplate driving mechanism drives the turnover bedplate rack to be upward and horizontal, so that the turnover bedplate is connected with the right discharge bedplate and is flat or drives the left part of the turnover bedplate to be downward inclined.

The technical scheme based on the corresponding technical schemes is as follows: the three groups of left Y-direction guide assemblies have the same structure and respectively comprise a left Y-direction first linear guide rail, a left sliding seat and a left dustproof conveying belt. The guide rail of the left Y-direction first linear guide rail is fixedly arranged on the left rack along the front-back direction. The left sliding seat is fixedly arranged on a sliding block of the left Y-direction first linear guide rail. The two ends of the left dustproof conveying belt are fixedly arranged on the left rack and are positioned above the guide rail of the left Y-direction first linear guide rail for preventing dust of the guide rail. The left side slide is arranged on the left side dustproof conveying belt in a sliding mode.

The three groups of right Y-direction guide assemblies have the same structure and respectively comprise a right Y-direction first linear guide rail, a right sliding seat and a right dustproof conveying belt. The guide rail of the right Y-direction first linear guide rail is fixedly arranged on the right rack along the front-back direction. The right sliding seat is fixedly arranged on a sliding block of the right Y-direction first linear guide rail. The two ends of the right dustproof conveying belt are fixedly arranged on the right rack and are positioned above the guide rail of the right Y-direction first linear guide rail for preventing dust of the guide rail. The right side slide is arranged on the right side dustproof conveying belt in a sliding mode.

The technical scheme based on the corresponding technical schemes is as follows: the template assembly comprises a template bottom plate, an upper pressure plate, an accessory positioning assembly and a template connecting assembly. A group of airbag positioning columns are arranged on the template bottom plate, and the airbag positioning columns are fixedly arranged on the template bottom plate and are encircled into a shape corresponding to that of the airbag. The bottom plate of the template is provided with a lower die hole which penetrates through the upper part and the lower part of the bottom plate and has a shape corresponding to the sewing stitch of the air bag. The upper press plate is provided with an upper die hole which penetrates through the upper part and the lower part of the upper press plate and has a shape corresponding to the sewing stitch of the air bag. The upper press plate is hinged to the template bottom plate from the rear side of the upper press plate, a reinforcing frame with the shape corresponding to the upper press plate is fixedly arranged on the periphery of the upper side of the upper press plate and used for improving the overall strength of the upper press plate, and reinforcing ribs are further arranged on the part, located inside the reinforcing frame, of the upper press plate. The left side and the right side of the upper pressure plate are connected with the template bottom plate through air springs. And the upper pressing plate is also provided with a positioning column hole corresponding to the airbag positioning column on the template bottom plate. The right side of the upper pressure plate is provided with a braid sewing hole which penetrates through the upper side and the lower side of the upper pressure plate, and the front side and the rear side of the upper side of the braid sewing hole are respectively provided with a braid pressing magnet. The middle part of the rear side of the upper pressure plate is provided with a lug frame hole which penetrates through the upper part and the lower part of the upper pressure plate. The left side and the right side of the front part of the upper pressure plate are respectively provided with a handle.

The accessory positioning column component comprises an ear piece positioning column adjusting seat, an ear piece positioning column, a braid positioning column adjusting seat, a braid positioning column and an ear piece positioning frame. The lug adjusting seat is adjustably arranged on the template bottom plate, and the position of the lug adjusting seat can be correspondingly adjusted according to the position of the placed lug. The lug positioning column is fixedly arranged on the lug adjusting seat. The mesh belt positioning column adjusting seat is adjustably arranged on the right part of the template bottom plate, the position of the mesh belt positioning column adjusting seat corresponds to a mesh belt sewing hole in the upper pressing plate, and the mesh belt positioning column is fixedly arranged on the mesh belt positioning column adjusting seat. The lug positioning frame is adjustably arranged on the template bottom plate, the position of the lug positioning frame can be correspondingly adjusted according to the position of the placed lug, the shape of the lug positioning frame corresponds to that of the corresponding lug, and the position of the lug positioning frame corresponds to the lug frame hole in the upper pressure plate. The template connecting assembly is used for being fixedly connected with the template quick assembly and the mold changing device.

The technical scheme based on the corresponding technical schemes is as follows: and a template mounting proximity switch is arranged on the template positioning plate of the two template quick-assembly components in the four template quick-assembly components. The front side of template subassembly is equipped with three template coupling assembling of group, and the rear side of template subassembly is equipped with four template coupling assembling of group, and seven template coupling assembling's structure is the same, all includes connecting plate, connecting plate mount pad and guide block. The connecting plate mounting seat is fixedly arranged on the template bottom plate, the connecting plate is fixedly arranged on the connecting plate mounting seat, and a pin shaft hole penetrating through the connecting plate is formed in one side, far away from the template bottom plate, of the connecting plate. The guide blocks are two, and the two guide blocks are respectively fixedly arranged on one side of the connecting plate mounting seat far away from the template bottom plate and are respectively positioned on the left side and the right side of the connecting plate. And the rear side of the template assembly and two groups of template connecting assemblies corresponding to the two groups of template quick-assembly assemblies provided with the template mounting proximity switches are provided with corresponding proximity induction plates. And the front side of the template assembly and two groups of template connecting assemblies corresponding to the two groups of left template quick-assembly assemblies provided with the template taking proximity switches are provided with corresponding proximity induction plates.

The technical scheme based on the corresponding technical schemes is as follows: the upper pressing plate is fixedly provided with a group of pressing plate pressing magnets along the periphery of the upper die hole, and the pressing plate pressing magnets are used for adsorbing the template bottom plate located below.

The invention has the following beneficial effects: (1) the pattern sewing machine disclosed by the invention is simple in structure, the waiting time is reduced, a worker can place and install the next air bag in the sewing process of the previous air bag, and the production efficiency is greatly improved.

(2) The working table mechanism of the pattern sewing machine is provided with the movable table plate assembly, and the movable table plate of the movable table plate assembly can be lifted and opened, so that the shuttle peg is convenient to replace.

(3) The X-direction driving mechanism of the pattern sewing machine greatly reduces the space occupied by the X-direction driving mechanism in the Y direction through the transmission mode of the ball spline and the gear rack, is beneficial to increasing the Y-direction sewing range of the pattern sewing machine, greatly improves the processing capacity of equipment, and has wide application range.

(4) The X-direction driving mechanism of the pattern sewing machine is provided with the pressing wheel, the pressing wheel adopts the cam driven bearing, the adjustment is convenient, the assembly error is eliminated, the X-direction rack is limited from the upper part through the pressing wheel and is in rolling contact with the X-direction rack, the stability and the consistent height of the X-direction rack during the left-right movement are ensured, the sewing smoothness is ensured, and the sewing quality is improved.

(5) The Y-direction guide component of the Y-direction driving mechanism of the pattern sewing machine is provided with the dustproof conveying belt, so that cloth scraps, dust and the like can be effectively prevented from falling on the linear guide rail from the mounting groove of the working table plate to cause blockage, the maintenance period is prolonged, the maintenance frequency is reduced, and the service life of equipment is prolonged.

(6) The pattern sewing machine is provided with the template quick assembly, so that the template assembly is convenient to quickly assemble and disassemble, and the production efficiency is greatly improved.

(7) The template quick assembly component of the pattern sewing machine is provided with the template mounting proximity switches, when all the template mounting proximity switches sense corresponding proximity sensing plates on the template component, the template component is shown to be placed in place, and at the moment, the template quick assembly component can be fixedly connected through the positioning pins, so that equipment damage caused by the fact that the template quick assembly component is not placed in place is avoided.

(8) The pattern sewing machine is provided with the two die changing devices, one of the two die changing devices is used for sewing, and meanwhile, the other die changing device can be used for placing and discharging air bags, so that the waiting time of workers is eliminated, and the production efficiency is greatly improved. The automatic installation and the removal of template component have been realized through two retooling devices, compare artifical high efficiency and reliable, have further improved production efficiency.

(9) The two mold changing devices of the pattern sewing machine are provided with corresponding movable platen assemblies at the ends close to each other, and the turnover platen can be folded downwards, so that a channel between the two mold changing devices is widened, and workers can more conveniently approach to a sewing machine head to replace the shuttle peg.

(10) The upper pressing plate of the template component of the pattern sewing machine can be opened and closed, the operation is convenient, the material arrangement of workers is convenient after the opening, and the production efficiency is improved.

(11) The upper pressing plates of the template components of the pattern sewing machine are hinged to the template bottom plate and supported by the air springs when being opened, so that the operation is convenient and the space is saved (the four upper pressing plates of the existing template components are hinged to the periphery of the template bottom plate respectively, and need to be turned over and opened completely, the operation is troublesome and the space is occupied).

(12) According to the pattern sewing machine, the reinforcing frame corresponding to the upper pressure plate in shape is fixedly arranged on the periphery of the upper side of the upper pressure plate of the template assembly, and the reinforcing ribs are further arranged on the part, located inside the reinforcing frame of the upper pressure plate, so that the overall strength of the upper pressure plate can be improved, the upper pressure plate is not easy to deform, and the gas spring is convenient to support; meanwhile, the pressing plate compresses the magnet to adsorb the template bottom plate below the pressing plate, so that the upper pressing plate is attached to the template bottom plate, the airbag is kept fixed firmly and flat, and the sewing quality is improved.

(13) The accessory positioning column assembly of the pattern sewing machine can be adjusted according to different requirements of the placing positions of the lug plates and the woven belts, and is strong in adaptability and wide in application range.

Drawings

Fig. 1 is a schematic structural diagram of a pattern sewing machine of the invention.

Fig. 2 is an enlarged schematic view of the left side view of fig. 1.

Fig. 3 is an enlarged schematic view of the right side view of fig. 1.

Fig. 4 is a schematic top view of fig. 1.

Fig. 5 is a schematic view when viewed from the front left upper side of fig. 1.

Fig. 6 is a schematic view as viewed from the upper right rear side of fig. 1.

Fig. 7 is a schematic view of the table plate, the die exchanging device, and the die plate assembly of the table mechanism removed when viewed from the front left upper side of fig. 1.

Fig. 8 is a schematic view of the table plate, the die changer, and the die plate assembly of the table mechanism removed as viewed from the upper right front of fig. 1.

Fig. 9 is a schematic view of the table plate, the die exchanging device, and the die plate assembly of the table mechanism removed when viewed from the upper right rear side of fig. 1.

Fig. 10 is an enlarged structural view of the elevating platen assembly of the table mechanism as viewed from the upper left front side of fig. 1.

Fig. 11 is an enlarged structural view of the elevating platen assembly of the table mechanism as viewed from the lower right rear side of fig. 1.

Fig. 12 is an enlarged schematic view of the X-direction drive mechanism in fig. 2.

Fig. 13 is an enlarged schematic view of the X-direction drive mechanism as viewed from the left rear upper side of fig. 1.

Fig. 14 is an enlarged schematic view of the Y-direction drive mechanism as viewed from the left rear upper side of fig. 1.

Fig. 15 is a schematic view of the structure of the slide and the dust-proof conveyor belt of the Y-guide assembly, with the upper housing removed, as viewed from the front left and upper side of fig. 1.

Fig. 16 is an enlarged schematic view of the formwork connection assembly as viewed from the upper left front of fig. 1.

Fig. 17 is an enlarged schematic view of the left side mold exchanging device as viewed from the left rear upper side of fig. 1.

Fig. 18 is an enlarged schematic view of the right side mold exchanging device as viewed from the upper left rear side of fig. 1.

Fig. 19 is an enlarged schematic view of the left slide and the left dust-proof conveyer belt of the left Y-guide of the left mold changer as viewed from the left front lower side of fig. 1.

Fig. 20 is an enlarged schematic view of the left slide and the left dust-proof conveyer belt of the left Y-guide of the left mold changer as viewed from the left rear upper side of fig. 1.

Fig. 21 is an enlarged schematic view of the template assembly in a state where an airbag is to be placed when the upper platen of the template assembly is opened upward as viewed from the upper right front of fig. 1.

Fig. 22 is an enlarged schematic view of the template assembly in a state where an airbag is to be placed when the upper platen of the template assembly is opened upward as viewed from the left rear upper side of fig. 1.

Fig. 23 is an enlarged view of a portion a of fig. 21.

The reference numbers in the drawings are:

a worktable mechanism 1, a main frame 1-1, a worktable 1-2, an installation groove 1-21, a movable bedplate component 1-3, a movable bedplate 1-31, a front limit part 1-31-1, a left limit part 1-31-2, a right limit part 1-31-3, a bedplate lifting driving device 1-32, a left bedplate lifting cylinder 1-32-1, a right bedplate lifting cylinder 1-32-2, a first connecting seat 1-32-3, a bedplate front and back driving device 1-33 and a bedplate guiding component 1-34,

a sewing mechanism 2, a sewing machine head 2-1, a lock core replacing device 2-2,

an X-direction driving mechanism 3, an X-direction mounting seat 3-1, an X-direction driving motor 3-2, an X-direction speed reducer 3-3, an X-direction first synchronous pulley 3-4, an X-direction second synchronous pulley 3-5, an X-direction synchronous belt 3-6, a ball spline 3-7, an X-direction gear 3-8, an X-direction rack 3-9, an X-direction linear guide rail 3-10, a pinch roller 3-11, an X-direction connecting seat component 3-12, a left X-direction connecting seat 3-12-1, a right X-direction connecting seat 3-12-2, a middle X-direction connecting seat 3-12-3,

a Y-direction driving mechanism 4, a Y-direction driving motor 4-1, a Y-direction speed reducer 4-2, a Y-direction main transmission assembly 4-3, a Y-direction first synchronous belt pulley 4-31, a Y-direction transmission shaft 4-32, a Y-direction second synchronous belt pulley 4-33, a Y-direction synchronous belt 4-34, a Y-direction driven transmission assembly 4-4, a Y-direction first driven synchronous belt pulley 4-41, a Y-direction second driven synchronous belt pulley 4-42, a Y-direction first driven synchronous belt 4-43, a Y-direction guide assembly 4-5, a Y-direction first linear guide rail 4-51, a sliding seat 4-52, an upper seat body 4-52-1, a lower seat body 4-52-2, a dustproof conveying belt 4-53 and a Y-direction mounting seat 4-6,

the fast-assembling template assembly 5, the template positioning plate 5-1, the template mounting proximity switch 5-11, the template positioning seat 5-2, the guide sleeve 5-21, the positioning pin 5-3, the positioning pin driving mechanism 5-4,

the die change device 6, a left die change device 6a, a left workbench component 6a1, a left frame 6a1-1, a left discharge platen 6a1-2, a left feed chute 6a1-21, a left Y-direction driving mechanism 6a2, a left Y-direction driving motor 6a2-1, a left Y-direction main transmission component 6a2-2, a left Y-direction first synchronous belt pulley 6a2-21, a left Y-direction transmission shaft 6a2-22, a left Y-direction second synchronous belt pulley 6a2-23, a left Y-direction synchronous belt 6a2-24, a left Y-direction driven transmission component 6a2-3, a left Y-direction first driven synchronous belt pulley 6a2-31, a left Y-direction second driven synchronous belt pulley 6a2-32, a left Y-direction first driven synchronous belt 6a2-33, a left Y-direction guide component 6a2-4, a left Y-direction first linear guide rail 2-41, a left slide carriage 6a2-42, a left dustproof conveyer belt 6a2-43, a left movable bedplate component 6a3, an overturning bedplate 6a3-1, an overturning bedplate frame 6a3-2, a bedplate driving mechanism 6a3-3, a left fast template component 6a4, a left template positioning seat 6a4-2, a left guide sleeve 6a4-21, a left positioning pin 6a4-3, a left positioning pin driving mechanism 6a4-4, a left synchronous connecting plate 6a5, a template taking access switch 6a6,

a right die changing device 6b, a right workbench component 6b1, a right frame 6b1-1, a right discharging platen 6b1-2, a right feeding groove 6b1-21, a right Y-direction driving mechanism 6b2, a right Y-direction driving motor 6b2-1, a right Y-direction main transmission component 6b2-2, a right Y-direction first synchronous belt pulley 6b2-21, a right Y-direction transmission shaft 6b2-22, a right Y-direction second synchronous belt pulley 6b2-23, a right Y-direction synchronous belt 6b2-24, a right Y-direction driven transmission component 6b2-3, a right Y-direction first driven synchronous belt pulley 6b2-31, a right Y-direction second driven synchronous belt pulley 6b2-32, a right Y-direction first driven synchronous belt 6b2-33, a right Y-direction guide component 6b2-4, a right Y-direction first linear guide rail 6b2-41, a right slide seat 6b2-42, a right dustproof conveyer belt 6b2-43, a right movable bedplate component 6b3, a turnover bedplate 6b3-1, a turnover bedplate frame 6b3-2, a bedplate driving mechanism 6b3-3, a right template fast-assembly component 6b4, a right template positioning seat 6b4-2, a right guide sleeve 6b4-21, a right positioning pin 6b4-3, a right positioning pin driving mechanism 6b4-4, a right synchronous connecting plate 6b5, a template material taking approach switch 6b6,

a template component 7, a template bottom plate 7-1, an airbag positioning column 7-11, an upper pressure plate 7-2, a reinforcing frame 7-21, reinforcing ribs 7-22, a pressure plate pressing magnet 7-23, a braid sewing hole 7-24, a braid pressing magnet 7-25 and a lug frame hole 7-26,

an accessory positioning component 7-3, a lug positioning column adjusting seat 7-31, a lug positioning column 7-32, a braid positioning column adjusting seat 7-33, a braid positioning column 7-34, a lug positioning frame 7-35,

the template connecting assembly is 7-4, the connecting plate is 7-41, the pin shaft hole is 7-41-1, the connecting plate mounting seat is 7-42, the guide block is 7-43, the proximity induction plate is 7-44, the gas spring is 7-5 and the handle is 7-6.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. The orientation of the present invention is described according to the orientation shown in fig. 1, that is, the up-down and left-right directions shown in fig. 1 are the up-down and left-right directions described, and the side facing fig. 1 is the front side and the side facing away from fig. 1 is the rear side. The left-right direction in fig. 1 is the X direction of the pattern machine, and the front-back direction in fig. 1 is the Y direction of the pattern machine.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance. The terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation is necessary.

(example 1)

Referring to fig. 1 to 23, the pattern sewing machine of the invention comprises a worktable mechanism 1, a sewing mechanism 2, an X-direction driving mechanism 3, a Y-direction driving mechanism 4, a template quick assembly 5, a mold changing device 6 and a template assembly 7.

Referring to fig. 1 to 11, the table mechanism 1 includes a main frame 1-1, a work table 1-2, and a moving table assembly 1-3. The working bedplate 1-2 is fixedly arranged on the main frame 1-1. The working bedplate 1-2 is provided with a movable bedplate hole. Four installation grooves 1-21 which penetrate through the working table plate 1-2 up and down are sequentially arranged on the working table plate 1-2 from left to right.

Referring to fig. 1 to 11, the movable platen assembly 1-3 comprises a movable platen 1-31, a platen lifting driving device 1-32, a platen front-back driving device 1-33 and a platen guiding assembly 1-34. The bedplate lifting driving device 1-32 comprises a left bedplate lifting cylinder 1-32-1, a right bedplate lifting cylinder 1-32-2 and a first connecting seat 1-32-3. The left bedplate lifting cylinder 1-32-1 is fixedly arranged on the left part of the upper side of the first connecting seat 1-32-3 by a cylinder body, and a piston rod thereof extends upwards. The right bedplate lifting cylinder 1-32-2 is fixedly arranged on the right part of the upper side of the first connecting seat 1-32-3 by a cylinder body, and a piston rod thereof extends upwards. The movable bedplate 1-31 is horizontally and fixedly arranged on the upper ends of the piston rods of the left bedplate lifting cylinder 1-32-1 and the right bedplate lifting cylinder 1-32-2. The left bedplate lifting cylinder 1-32-1 and the right bedplate lifting cylinder 1-32-2 drive the movable bedplate 1-31 to move up and down, and the movable bedplate 1-31 extends upwards into a movable bedplate hole of the working bedplate 1-2 to fill and level the movable bedplate hole. The front part of the lower side of the movable bedplate 1-31 is provided with a front limiting part 1-31-1 protruding forwards, the left part of the lower side of the movable bedplate 1-31 is provided with a left limiting part 1-31-2 protruding leftwards, the right part of the lower side of the movable bedplate 1-31 is provided with a right limiting part 1-31-3 protruding rightwards, and each limiting part is used for limiting the movable bedplate 1-31 when moving upwards so as to ensure that the upper surface of the movable bedplate 1-31 is level with the upper surface of the working bedplate 1-2.

The platen front-rear driving devices 1-33 adopt a cylinder driving mode, and the CY1L15H-200 magnetic couple type rodless cylinders of SMC are adopted in the embodiment. The cylinder barrel of the magnetic couple type rodless cylinder is horizontally and fixedly arranged on the lower side of the working table plate 1-2 in the front-back direction and is positioned on the left of the movable table plate hole of the working table plate 1-2. The bedplate guide components 1-34 adopt cylindrical linear guide rails, and cylindrical shafts of the cylindrical linear guide rails are horizontally and fixedly arranged on the lower sides of the working bedplate 1-2 in the front-back direction and are positioned at the right sides of movable bedplate holes of the working bedplate 1-2. The left part of a first connecting seat 1-32-3 of the bedplate lifting driving device 1-32 is fixedly connected with a magnetic coupling type rodless cylinder piston of the bedplate front-back driving device 1-33, and the right part of the first connecting seat 1-32-3 is fixedly connected with a slide block of a cylindrical linear guide rail of the bedplate guide assembly 1-34, so that the bedplate front-back driving device 1-33 drives the bedplate lifting driving device 1-32 and the movable bedplate 1-31 to move back and forth along the bedplate guide assembly 1-34.

Referring to fig. 1 to 9, the sewing mechanism 2 includes a sewing head 2-1 and a cylinder changing device 2-2. The sewing mechanism 2 is of the prior art. The sewing machine head 2-1 is fixedly arranged on a main frame 1-1 of the worktable mechanism 1. The moving platen assembly 1-3 is located at the front side of the sewing machine head 2-1. The bobbin changing device 2-2 adopts an automatic bobbin changing device of Yangzhou Hitachi, the automatic bobbin changing device can install 8 bobbins at a time, and when all the threads of the 8 bobbins are used up, the bobbins are taken out together to be changed, so that the working efficiency can be greatly improved.

Referring to fig. 1 to 9, 12 and 13, the X-direction driving mechanism 3 comprises an X-direction mounting seat 3-1, an X-direction driving motor 3-2, an X-direction speed reducer 3-3, an X-direction first synchronous pulley 3-4, an X-direction second synchronous pulley 3-5, an X-direction synchronous belt 3-6, a ball spline 3-7, an X-direction gear 3-8, an X-direction rack 3-9, an X-direction linear guide rail 3-10, a pressing wheel 3-11 and an X-direction connecting seat assembly 3-12.

The X-direction mounting seat 3-1 is horizontally arranged along the left-right direction and is positioned at the upper side of the working table plate 1-2. The X-direction driving motor 3-2 is fixedly connected with the X-direction speed reducer 3-3, and a motor shaft of the X-direction driving motor 3-2 is in transmission connection with an input end of the X-direction speed reducer 3-3 through key connection. The X-direction speed reducer 3-3 is fixedly arranged on the main frame 1-1 through a corresponding tensioning adjusting seat and is positioned at the lower right side of the sewing machine head 2-1. The output end of the X-direction speed reducer 3-3 faces the rear, and the X-direction first synchronous belt wheel 3-4 is in transmission connection with the output end of the X-direction speed reducer 3-3 through key connection.

The ball spline 3-7 is arranged on the main frame 1-1 by a spline nut through a corresponding bearing in a rotating way and is positioned at the upper side of the right working table plate 1-2 of the sewing machine head 2-1, and the spline shaft of the ball spline is arranged in parallel with the output end of the X-direction speed reducer 3-3. The X-direction second synchronous pulley 3-5 is arranged on a spline nut of the ball spline 3-5 in a transmission way, and the X-direction synchronous belt 3-6 is arranged around the X-direction first synchronous pulley 3-4 and the X-direction second synchronous pulley 3-5, so that the spline shaft of the ball spline 3-7 is driven to rotate by the X-direction driving motor 3-2, and the spline shaft can move in the front and back directions. The front part of a spline shaft of the ball spline 3-7 is rotatably arranged on the rear part of the X-direction mounting seat 3-1 through a bearing and a bearing seat, an X-direction gear 3-8 is connected to the front end of the spline shaft of the ball spline 3-7 in a key connection transmission mode, the corresponding part of the upper part of the spline shaft is upwards exposed out of the X-direction mounting seat 3-1, a sheath 3-71 is arranged on the spline shaft, and the sheath 3-71 is fixedly arranged on the main frame 1-1 and is positioned behind the bearing seat.

The X-direction linear guide rail 3-10 is fixedly arranged on the front side of the X-direction mounting seat 3-1 along the left-right direction by the guide rail.

The X-direction connecting seat assembly 3-12 comprises a left X-direction connecting seat 3-12-1, a right X-direction connecting seat 3-12-2 and a middle X-direction connecting seat 3-12-3. The left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2 are identical in structure, and the left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2 are fixedly arranged on corresponding sliding blocks on the X-direction linear guide rail 3-10 from left to right in sequence. The middle X-direction connecting seat 3-12-3 is respectively and fixedly connected with the left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2 and is used for fixedly connecting the left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2.

The X-direction rack 3-9 is fixedly arranged on the upper parts of the rear sides of the left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2 in the left and right directions, is positioned above the X-direction mounting seat 3-1 and is meshed with the X-direction gear 3-8. The pressing wheels 3-11 adopt cam driven bearings, the pressing wheels 3-11 are rotatably arranged on the X-direction mounting base 3-1, rotating shafts of the pressing wheels and the X-direction gears 3-8 are arranged in parallel, the pressing wheels 3-11 limit the X-direction racks 3-9 from the upper part and are in rolling contact with the X-direction racks 3-9, and stability and consistent height of the X-direction racks 3-9 during left-right movement are guaranteed.

Referring to fig. 1 to 9, 14 and 15, the Y-direction driving mechanism 4 comprises a Y-direction driving motor 4-1, a Y-direction speed reducer 4-2, a Y-direction main transmission assembly 4-3, a Y-direction driven transmission assembly 4-4, a Y-direction guide assembly 4-5 and a Y-direction mounting seat 4-6.

The Y-direction driving motor 4-1 is fixedly connected with the Y-direction speed reducer 4-2, and a motor shaft of the Y-direction driving motor 4-1 is in transmission connection with an input end of the Y-direction speed reducer 4-2 through key connection. The Y-direction speed reducer 4-2 is fixedly arranged on the main frame 1-1 through a corresponding tensioning adjusting seat and is positioned on the lower side of the left working table plate 1-2 of the sewing machine head 2-1.

The Y-direction main transmission assembly 4-3 comprises a Y-direction first synchronous pulley 4-31, a Y-direction transmission shaft 4-32, a Y-direction second synchronous pulley 4-33 and a Y-direction synchronous belt 4-34. The Y-direction first synchronous belt pulley 4-31 is connected with the output end of the Y-direction speed reducer 4-2 through key connection transmission. The Y-direction transmission shaft 4-32 is arranged on the rear part of the main frame 1-1 along the left-right direction. The Y-direction second synchronous belt wheel 4-33 is connected with the middle part of the Y-direction transmission shaft 4-32 through key connection transmission, and the Y-direction synchronous belt 4-34 is arranged around the Y-direction first synchronous belt wheel 4-31 and the Y-direction second synchronous belt wheel 4-33.

Four groups of Y-direction driven transmission assemblies 4-4 are provided, two groups of Y-direction driven transmission assemblies 4-4 are symmetrically arranged on the left part of the main frame 1-1, and the other two groups of Y-direction driven transmission assemblies 4-4 are symmetrically arranged on the right part of the main frame 1-1. The four groups of Y-direction driven transmission assemblies 4-4 have the same structure and respectively comprise a Y-direction first driven synchronous pulley 4-41, a Y-direction second driven synchronous pulley 4-42 and a Y-direction first driven synchronous belt 4-43. The Y-direction first driven synchronous pulley 4-41 is connected with the Y-direction transmission shaft 4-32 through key connection transmission. The Y-direction second driven synchronous pulleys 4-42 are rotatably arranged on the front part of the main frame 1-1 through corresponding tensioning seats. The Y-direction first driven timing belt 4-43 is provided around the Y-direction first driven timing pulley 4-41 and the Y-direction second driven timing pulley 4-42.

The Y-direction guide assemblies 4-5 are provided with four groups, and two groups of Y-direction guide assemblies 4-5 are symmetrically arranged on the left part of the main frame 1-1 and are positioned between the corresponding two groups of Y-direction driven transmission assemblies 4-4. The other two groups of Y-direction driven transmission assemblies 4-5 are symmetrically arranged on the right part of the main frame 1-1 and are positioned between the corresponding two groups of Y-direction driven transmission assemblies 4-4. The four groups of Y-direction guide assemblies 4-5 are identical in structure and comprise Y-direction first linear guide rails 4-51, sliding seats 4-52 and dustproof conveying belts 4-53. The guide rail of the Y-direction first linear guide 4-51 is fixedly arranged on the main frame 1-1 along the front-back direction. The sliding seat 4-52 comprises an upper seat body 4-52-1 and a lower seat body 4-52-2. The front end and the rear end of the upper seat body 4-52-1 are respectively provided with a roller groove which is provided with an outward opening and penetrates through the upper seat body and the lower seat body, the lower seat body is provided with a mounting groove which is provided with an upward opening and penetrates through the front end and the rear end of the lower seat body, the upper seat body 4-52-1 is fixedly arranged on the lower seat body 4-52-2 to form a structure with a middle cavity, and the two ends of the cavity are communicated with the outside. The roller grooves at the front end and the rear end of the upper seat body 4-52-1 are respectively provided with a roller, the rollers are rotatably arranged on the upper seat body 4-52-1, and the rotating axes of the rollers are horizontally arranged along the left-right direction. The front end and the rear end of the mounting groove of the lower seat body 4-52-2 are respectively provided with a roller, the rollers are rotatably arranged on the lower seat body 4-52-2, the rotating axes of the rollers are horizontally arranged along the left-right direction and are respectively positioned below the two rollers of the corresponding upper seat body 4-52-1.

The lower seat body 4-52-2 is fixedly arranged on the slide block of the Y-direction first linear guide rail 4-51. Two ends of the dustproof conveying belt 4-53 are fixedly arranged on the main frame 1-1 and are positioned above the guide rail of the Y-direction first linear guide rail 4-51 for preventing dust of the guide rail. The dustproof conveying belt 4-53 sequentially bypasses the upper part and the rear part of the roller of the upper seat body 4-52-1, the front part and the lower part of the roller of the lower seat body 4-52-2, the lower part and the rear part of the roller of the lower seat body 4-52-2 and the front part and the upper part of the roller of the upper seat body 4-52-1 from front to rear, so that the sliding seat 4-52 is arranged on the dustproof conveying belt 4-53 in a sliding way. The upper surface of the dustproof conveying belt 4-53 is level with the upper surface of the upper seat body 4-52-1. The lower seat body 4-52-2 is in transmission connection with a corresponding Y-direction first driven synchronous belt 4-43 of the Y-direction driven transmission assembly 4-4 through a synchronous belt clip.

Four Y-direction mounting seats 4-6 are provided, and the four Y-direction mounting seats 4-6 are respectively fixedly arranged on the upper seat bodies 4-52-1 of the sliding seats 4-52 of the corresponding group of Y-direction guide assemblies 4-5. The upper part of the Y-direction mounting seat 4-6 extends upwards out of the workbench plate 1-2, and the corresponding part is positioned in the corresponding mounting groove 1-21. The X-direction mounting base 3-1 is horizontally and fixedly connected to the four Y-direction mounting bases 4-6 along the left-right direction. Therefore, the Y-direction driving motor 4-1 drives the Y-direction mounting seat 4-6 to synchronously move back and forth along the Y-direction guide component 4-5 through the Y-direction speed reducer 4-2, the Y-direction main transmission component 4-3 and the Y-direction driven transmission component 4-4, so that the X-direction mounting seat 3-1 moves back and forth.

Referring to fig. 1 to 9 and 15, the template quick-assembly components 5 are four groups, and the four groups of template quick-assembly components 5 have the same structure and respectively comprise template positioning plates 5-1, template positioning seats 5-2, positioning pins 5-3 and positioning pin driving mechanisms 5-4. The four groups of template quick-assembly components 5 are sequentially arranged on the front sides of the left X-direction connecting seats 3-12-1 and the right X-direction connecting seats 3-12-2 of the X-direction connecting seat components 3-12 from left to right. Each template positioning plate 5-1 is fixedly arranged on the corresponding left X-direction connecting seat 3-12-1 and the right X-direction connecting seat 3-12-2.

The template positioning seat 5-2 is fixedly arranged on the lower part of the front side of the template positioning plate 5-1, a pin shaft hole penetrating through the template positioning seat 5-2 is arranged on the upper part and the lower part of the template positioning seat, and a guide sleeve 5-21 is arranged in the pin shaft hole. The positioning pin driving mechanism 5-4 adopts a CUJB16-10D small free mounting air cylinder of SMC, the positioning pin driving mechanism 5-4 is fixedly arranged on the upper part of the front side of the template positioning plate 5-1 and is positioned above the template positioning seat 5-2, a piston rod of the positioning pin driving mechanism extends downwards, the positioning pin 5-3 is fixedly arranged on the end head of the piston rod and is coaxial with the guide sleeve 5-21 of the template positioning seat 5-2, and the positioning pin driving mechanism 5-4 drives the positioning pin 5-3 to move downwards to be inserted into the guide sleeve 5-21 or upwards to enable the positioning pin 5-3 to be separated from the guide sleeve 5-21. And template mounting proximity switches 5-11 are arranged on the template positioning plates 5-1 of the second group of template quick-assembly components 5 and the template positioning plates 5-1 of the third group of template quick-assembly components 5 from left to right.

Referring to fig. 1 to 5 and 15, the mold changing devices 6 are two in number, and the two mold changing devices 6 are divided into a left mold changing device 6a and a right mold changing device 6b according to their left and right positions.

The left die change apparatus 6a includes a left table assembly 6a1, a left Y drive mechanism 6a2, a left movable platen assembly 6a3, a left template quick assembly 6a4, and a left timing link plate 6a 5.

The left side table assembly 6a1 includes a left side frame 6a1-1 and a left side drop deck 6a 1-2. The left discharge bedplate 6a1-2 is horizontally and fixedly arranged on the left frame 6a1-1 and is level with the working bedplate 1-2. The left side frame 6a1-1 is fixedly connected to the left part of the front side of the main frame 1-1, and the rear side of the left discharging bedplate 6a1-2 is connected with the front side of the left part of the working bedplate 1-2. The left feeding table plate 6a1-2 is provided with a left feeding groove 6a1-21 which penetrates through the upper part and the lower part along the front-back direction. The left feeding grooves 6a1-21 are three, and the three left feeding grooves 6a1-21 are arranged in parallel from left to right.

The left Y-direction driving mechanism 6a2 comprises a left Y-direction driving motor 6a2-1, a left Y-direction main transmission assembly 6a2-2, a left Y-direction driven transmission assembly 6a2-3 and a left Y-direction guide assembly 6a 2-4. The left Y-direction driving motor 6a2-1 is fixedly arranged on the upper rear part of the left frame 6a1-1 of the left workbench component 6a1 through a corresponding tension adjusting seat and is positioned at the lower side of the left discharge bedplate 6a 1-2. The left Y-direction main transmission assembly 6a2-2 comprises a left Y-direction first synchronous belt pulley 6a2-21, a left Y-direction transmission shaft 6a2-22, a left Y-direction second synchronous belt pulley 6a2-23 and a left Y-direction synchronous belt 6a 2-24. The left Y-direction first synchronous belt pulley 6a2-21 is connected with the motor shaft of the left Y-direction driving motor 6a2-1 through key linkage transmission. The left Y-direction transmission shaft 6a2-22 is arranged on the rear part of the left side frame 6a1-1 along the left-right direction rotation. The left Y-direction secondary synchronous pulleys 6a2-23 are connected on the middle part of the left Y-direction transmission shaft 6a2-22 through key coupling transmission, and the left Y-direction synchronous belts 6a2-24 are arranged around the left Y-direction transmission shaft 6a2-22 and the left Y-direction secondary synchronous pulleys 6a 2-23. The left Y-direction driven transmission assemblies 6a2-3 are provided with three groups, and the three groups of left Y-direction driven transmission assemblies 6a2-3 are sequentially arranged on the upper part of the left rack 6a1-1 from left to right. The three groups of left Y-direction driven transmission assemblies 6a2-3 have the same structure and respectively comprise a left Y-direction first driven synchronous pulley 6a2-31, a left Y-direction second driven synchronous pulley 6a2-32 and a left Y-direction first driven synchronous belt 6a 2-33. The left Y-direction first driven synchronous pulleys 6a2-31 are in key-linked transmission connection with the left Y-direction transmission shafts 6a 2-22. The left Y-direction second synchronous belt wheel 6a2-23 is rotatably arranged on the front part of the left frame 6a1-1 through a corresponding tensioning seat. The left Y-direction first driven timing belts 6a2-33 are provided around the left Y-direction first driven timing pulleys 6a2-31 and the left Y-direction second timing pulleys 6a 2-23. The left Y-direction guide assembly 6a2-4 has three groups, and the three groups of left Y-direction guide assemblies 6a2-4 are sequentially arranged on the left rack 6a1-1 from left to right and are positioned at the right side of the corresponding 1 group of left Y-direction driven transmission assemblies 6a 2-3. The three groups of left Y-direction guide assemblies 6a2-4 have the same structure and all comprise left Y-direction first linear guide rails 6a2-41, left slide carriages 6a2-42 and left dustproof conveying belts 6a 2-43. The left Y-direction first linear guide 6a2-41 is fixed on the left frame 6a1-1 along the front-back direction. The left slide 6a2-42 is fixedly arranged on the slide block of the left Y-direction first linear guide 6a 2-41. The two ends of the left dustproof conveying belt 6a2-43 are fixedly arranged on the left frame 6a1-1 and are positioned above the guide rail of the left Y-direction first linear guide rail 6a2-41 for dust prevention of the guide rail. The upper part, the lower part and the middle part of the front part of the left sliding seat 6a2-42 are respectively provided with a roller, 4 rollers are all rotatably arranged on the left sliding seat 6a2-42, and the rotating axes are all horizontally arranged along the left-right direction. The left dust-proof conveyor belts 6a2-43 pass over and behind the rollers at the upper part of the front part, in front of and below the rollers at the lower part of the front part, in back of and below the rollers at the lower part of the rear part, and in front of and above the rollers at the upper part of the rear part in this order from front to back, so that the left slide carriage 6a2-42 is slidably provided on the left dust-proof conveyor belts 6a 2-43. The left slide 6a2-42 is drivingly connected to a left Y-direction first driven timing belt 6a2-33 of a corresponding left Y-direction driven transmission assembly 6a2-3 via a timing belt clip.

The left movable platen assembly 6a3 includes a flipping platen 6a3-1, a flipping platen frame 6a3-2, and a platen drive mechanism 6a 3-3. The turnover table plate 6a3-1 is fixedly arranged on the turnover table plate frame 6a 3-2. The left side of the turnover table frame 6a3-2 is hinged on the upper part of the right side of the left side frame 6a1-1, and the table driving mechanism 6a3-2 comprises two air cylinders, and the two air cylinders both adopt CM2E20-100 single-rod double-acting air cylinders of SMC. The two air cylinders are respectively hinged on the front part and the rear part of the right side of the left side frame 6a1-1 through respective cylinder bodies, and the ends of the piston rods of the two air cylinders are respectively hinged on the front part and the rear part of the right part of the lower side of the turnover table frame 6a 3-2. So that the turnover table frame 6a3-2 is driven by the table driving mechanism 6a3-2 to be horizontal upwards to enable the turnover table 6a3-1 to be connected with the left emptying table 6a1-2 and to be flat or to drive the right part of the turnover table 6a3-1 to be inclined downwards.

The left side template quick assembly 6a4 has three groups, and the three groups of left side template quick assembly 6a4 have the same structure and respectively comprise a left side template positioning seat 6a4-2, a left side positioning pin 6a4-3 and a left side positioning pin driving mechanism 6a 4-4. The three groups of left template quick-assembling assemblies 6a4 are respectively arranged on the left slide carriages 6a2-42 of the corresponding 1 group of left Y-direction driven transmission assemblies 6a 2-3. The left template positioning seat 6a4-2 is fixedly arranged between the front and rear groups of rollers of the left sliding seat 6a2-42 and is positioned on the upper side of the left emptying bedplate 6a1-2, a pin shaft hole penetrating through the left template positioning seat 6a4-2 is arranged on the left template positioning seat, and a left guide sleeve 6a4-21 is arranged in the pin shaft hole. The left positioning pin driving mechanism 6a4-4 adopts a CUJB16-10D small freely-mounted air cylinder of SMC, the left positioning pin driving mechanism 6a4-4 is fixedly arranged between the front and rear groups of rollers of the left sliding seat 6a2-42 and is positioned below the left template positioning seat 6a4-2, the piston rod of the left positioning pin driving mechanism extends upwards, the left positioning pin 6a4-3 is fixedly arranged on the end head of the piston rod and is coaxially arranged with the left guide sleeve 6a4-21 of the left template positioning seat 6a4-2, and the left positioning pin driving mechanism 6a4-4 drives the left positioning pin 6a4-3 to move upwards to be inserted into the left guide sleeve 6a4-21 or downwards to enable the left positioning pin 6a4-3 to be separated from the left guide sleeve 6a 4-21.

The left synchronous connecting plate 6a5 is horizontally arranged on the upper side of the left emptying bedplate 6a1-2 along the left-right direction and is fixedly connected with the upper front side of each left slide carriage 6a2-4 of the three groups of left Y-direction guide assemblies 6a 2-4. And a formwork taking access switch 6a6 is arranged on the left synchronous connecting plate 6a5, and the formwork taking access switch 6a6 is positioned on the right side of the left formwork positioning seat 6a4-2 of the first group of left formwork quick-assembly components 6a4 and on the left side of the left formwork positioning seat 6a4-2 of the third group of left formwork quick-assembly components 6a4 counted from left to right.

The right side mold changer 6b includes a right side table assembly 6b1, a right side Y drive mechanism 6b2, a right side movable platen assembly 6b3, a right side template quick assembly 6b4, and a right side timing tie plate 6b 5.

The right side table assembly 6b1 includes a right side frame 6b1-1 and a right side drop deck 6b 1-2. The right discharging bedplate 6b1-2 is horizontally and fixedly arranged on the right rack 6b1-1 and is level with the working bedplate 1-2. The right side frame 6b1-1 is fixedly connected on the right part of the front side of the main frame 1-1, and the rear side of the right side emptying bedplate 6b1-2 is connected with the front side of the right part of the working bedplate 1-2. The right feeding groove 6b1-21 which penetrates through the upper part and the lower part of the right discharging platform plate 6b1-2 is arranged along the front-back direction. The number of the right feeding grooves 6b1-21 is three, and the three right feeding grooves 6b1-21 are arranged in parallel from left to right.

The right Y-direction driving mechanism 6b2 comprises a right Y-direction driving motor 6b2-1, a right Y-direction main transmission assembly 6b2-2, a right Y-direction driven transmission assembly 6b2-3 and a right Y-direction guide assembly 6b 2-4. The right Y-direction driving motor 6b2-1 is fixedly arranged on the upper rear part of the right frame 6b1-1 of the right workbench assembly 6b1 through a corresponding tension adjusting seat and is positioned at the lower side of the right discharging platform plate 6b 1-2. The right Y-direction main transmission assembly 6b2-2 comprises a right Y-direction first synchronous belt pulley 6b2-21, a right Y-direction transmission shaft 6b2-22, a right Y-direction second synchronous belt pulley 6b2-23 and a right Y-direction synchronous belt 6b 2-24. The right Y-direction first synchronous belt pulley 6b2-21 is connected on the motor shaft of the right Y-direction driving motor 6b2-1 through key linkage transmission. The right Y-direction transmission shaft 6b2-22 is arranged on the rear part of the right frame 6b1-1 along the left-right direction rotation. The right Y-direction secondary synchronous pulleys 6b2-23 are connected to the middle part of the right Y-direction transmission shaft 6b2-22 through key coupling transmission, and the right Y-direction synchronous belts 6b2-24 are arranged around the right Y-direction transmission shaft 6b2-22 and the right Y-direction secondary synchronous pulleys 6b 2-23. The right Y-direction driven transmission assemblies 6b2-3 are provided with three groups, and the three groups of right Y-direction driven transmission assemblies 6b2-3 are sequentially arranged on the upper part of the right rack 6b1-1 from left to right. The three groups of right Y-direction driven transmission assemblies 6b2-3 are identical in structure and respectively comprise a right Y-direction first driven synchronous pulley 6b2-31, a right Y-direction second driven synchronous pulley 6b2-32 and a right Y-direction first driven synchronous belt 6b 2-33. The right Y-direction first driven synchronous pulleys 6b2-31 are in key-linked transmission connection with the right Y-direction transmission shafts 6b 2-22. The right Y-direction second synchronous belt wheel 6b2-23 is rotatably arranged on the front part of the right frame 6b1-1 through a corresponding tensioning seat. The right Y-direction first driven timing belts 6b2-33 are provided around the right Y-direction first driven timing pulleys 6b2-31 and the right Y-direction second timing pulleys 6b 2-23. The right Y-direction guide assembly 6b2-4 has three groups, and the three groups of right Y-direction guide assemblies 6b2-4 are sequentially arranged on the right rack 6b1-1 from left to right and are positioned at the left side of the corresponding 1 group of right Y-direction driven transmission assemblies 6b 2-3. The three groups of right Y-direction guide assemblies 6b2-4 are identical in structure and respectively comprise right Y-direction first linear guide rails 6b2-41, right sliding seats 6b2-42 and right dustproof conveying belts 6b 2-43. The guide rail of the right Y-direction first linear guide 6b2-41 is fixedly arranged on the right side frame 6b1-1 along the front-back direction. The right slide 6b2-42 is fixedly arranged on the slide block of the right Y-direction first linear guide 6b 2-41. Two ends of the right dustproof conveying belt 6b2-43 are fixedly arranged on the right rack 6b1-1 and are positioned above the guide rail of the right Y-direction first linear guide rail 6b2-41 for dust prevention of the guide rail. The upper part, the lower part and the middle part of the front part of the right sliding seat 6b2-42 are respectively provided with a roller, each roller 4 is rotatably arranged on the right sliding seat 6b2-42, and the rotating axes are horizontally arranged along the left-right direction. The right dust-proof conveyor belts 6b2-43 pass over and behind the rollers at the upper part of the front part, in front of and below the rollers at the lower part of the front part, in back of and below the rollers at the lower part of the rear part, and in front of and above the rollers at the upper part of the rear part in this order from front to back, so that the right slide carriage 6b2-42 is slidably provided on the right dust-proof conveyor belts 6b 2-43. The right slide 6b2-42 is drivingly connected to a right Y-direction first driven timing belt 6b2-33 of a corresponding right Y-direction driven transmission assembly 6b2-3 through a timing belt clip.

The right movable platen assembly 6b3 includes a flipping platen 6b3-1, a flipping platen frame 6b3-2, and a platen drive mechanism 6b 3-2. The turnover table plate 6b3-1 is fixedly arranged on the turnover table plate frame 6b 3-2. The right side of the turnover table frame 6b3-2 is hinged on the upper part of the left side of the right side frame 6b1-1, and the table driving mechanism 6a3-2 comprises two air cylinders, and the two air cylinders both adopt CM2E20-100 single-rod double-acting air cylinders of SMC. The two air cylinders are respectively hinged on the front part and the rear part of the left side of the right side frame 6a1-1 through respective cylinder bodies, and the ends of the piston rods of the two air cylinders are respectively hinged on the front part and the rear part of the left side of the lower side of the turnover table frame 6a 3-2. Thus, the overturning platform frame 6a3-2 is driven by the platform driving mechanism 6b3-2 to be upwards horizontal, so that the overturning platform plate 6b3-1 is connected with the right emptying platform plate 6b1-2 and is flat or the left part of the overturning platform plate 6b3-1 is driven to be downwards inclined.

The right side template quick assembly components 6b4 have three groups, and the three groups of right side template quick assembly components 6b4 have the same structure and respectively comprise right side template positioning seats 6b4-2, right side positioning pins 6b4-3 and right side positioning pin driving mechanisms 6b 4-4. The three groups of right template fast-assembling assemblies 6b4 are respectively arranged on the right slide carriages 6b2-42 of the corresponding 1 group of right Y-direction driven transmission assemblies 6b 2-3. The three sets of right side template quick assemblies 6b4 are spaced from one another the same distance as the three sets of left side template quick assemblies 6a4 are spaced from one another. The right template positioning seat 6b4-2 is fixedly arranged between the front and the rear groups of rollers of the right sliding seat 6b2-42 and is positioned on the upper side of the right emptying bedplate 6b1-2, a pin shaft hole penetrating through the right template positioning seat 6b4-2 is arranged on the right template positioning seat, and a right guide sleeve 6b4-21 is arranged in the pin shaft hole. The right positioning pin driving mechanism 6b4-4 adopts a CUJB16-10D small freely-installed air cylinder of SMC, the right positioning pin driving mechanism 6b4-4 is fixedly arranged between the front and back groups of rollers of the right sliding seat 6b2-42 and is positioned below the right template positioning seat 6b4-2, the piston rod of the right positioning pin driving mechanism extends upwards, the right positioning pin 6b4-3 is fixedly arranged on the end head of the piston rod and is coaxially arranged with the right guide sleeve 6b4-21 of the right template positioning seat 6b4-2, and the right positioning pin 6b4-3 is driven by the right positioning pin driving mechanism 6b4-4 to move upwards and be inserted into the right guide sleeve 6b4-21 or downwards to enable the right positioning pin 6b4-3 to be separated from the right guide sleeve 6b 4-21.

The right synchronous connecting plate 6b5 is horizontally arranged on the upper side of the right emptying bedplate 6b1-2 along the left-right direction and is fixedly connected with the upper front side of each right slide carriage 6b2-42 of the three groups of right Y-direction guide assemblies 6b 2-4. And a template taking proximity switch 6b6 is arranged on the right synchronous connecting plate 6b5, and the template taking proximity switch 6b6 is positioned on the right side of a right template mounting seat 6b4-1 of a first right template quick assembly 6b4 counted from left to right.

Referring to fig. 1-6 and 21-23, the stencil assembly 7 includes a stencil base 7-1, an upper platen 7-2, an accessory positioning assembly 7-3 and a stencil connecting assembly 7-4. There are two template assemblies 7.

The template bottom plate 7-1 is provided with a group of airbag positioning columns 7-11, the airbag positioning columns 7-11 are fixedly arranged on the template bottom plate 7-1, the shape of the enclosed airbag corresponds to the shape of the airbag, and corresponding positioning holes on the edge of the airbag to be sewn are sleeved on the airbag positioning columns 7-11 when the sewing machine is used. The template bottom plate 7-1 is provided with a lower die hole which penetrates through the upper part and the lower part of the template bottom plate and has a shape corresponding to the sewing stitch of the air bag.

The upper press plate 7-2 is provided with an upper die hole which penetrates through the upper part and the lower part of the upper press plate and has a shape corresponding to the sewing stitch of the air bag. The upper pressing plate 7-2 is hinged to the template bottom plate 7-1 from the rear side, a reinforcing frame 7-21 with a shape corresponding to the upper side is fixedly arranged on the periphery of the upper side of the upper pressing plate 7-2 and used for improving the overall strength of the upper pressing plate 7-2, and reinforcing ribs 7-22 are further arranged on the part, located inside the reinforcing frame 7-21 of the upper pressing plate 7-2, of the upper pressing plate 7-2. The left side and the right side of the upper pressure plate 7-2 are connected with the template bottom plate 7-1 through the air springs 7-5, when the upper pressure plate 7-2 is opened upwards, the upper pressure plate is supported and fixed through the air springs 7-5 on the two sides, and therefore workers can place the air bags to be sewn on the template bottom plate 7-1 or take the sewn air bags off the template bottom plate 7-1 conveniently. The upper pressing plate 7-2 is also provided with positioning column holes corresponding to the airbag positioning columns 7-11 on the template bottom plate 7-1, and the airbag positioning columns 7-11 on the template bottom plate 7-1 are inserted into the corresponding positioning column holes when in use. The upper pressing plate 7-2 is fixedly provided with a group of pressing plate pressing magnets 7-23 along the periphery of the upper die hole, 13 pressing plate pressing magnets 7-23 are arranged in the embodiment, and the pressing plate pressing magnets 7-23 adsorb the template bottom plate 7-1 positioned below when in use, so that the upper pressing plate 7-2 is attached to the template bottom plate 7-1, and the airbag is kept fixed firmly and smoothly. The right side of the upper pressing plate 7-2 is provided with a braid sewing hole 7-24 penetrating through the upper part and the lower part, the template bottom plate 7-11 is provided with a through hole corresponding to the braid sewing hole 7-24, and the front side and the rear side of the upper side of the braid sewing hole 7-24 are respectively provided with a braid pressing magnet 7-25. The middle part of the back side of the upper pressure plate 7-2 is provided with a lug frame hole 7-26 which penetrates through the upper and the lower parts. The left side and the right side of the front part of the upper pressure plate 7-2 are respectively provided with a handle 7-6.

The accessory positioning column assembly 7-3 comprises a lug positioning column adjusting seat 7-31, a lug positioning column 7-32, a braid positioning column adjusting seat 7-33, a braid positioning column 7-34 and a lug positioning frame 7-35. The lug is a side curtain mounting member sewn on one side of the airbag for fixedly mounting and connecting the airbag to a vehicle. The number of the lug positioning column adjusting seats 7-31 of the embodiment is 5. 5 lug positioning column adjusting seats 7-31 are sequentially arranged on the template bottom plate 7-1 from left to right and are positioned at the rear side of the lower die hole. The ear adjusting seat 7-31 is adjustably arranged on the template bottom plate 7-1, and the position of the ear adjusting seat can be correspondingly adjusted according to the position of the placed ear. The ear positioning columns 7-32 are fixedly arranged on the ear adjusting seats 7-31, corresponding positioning holes in the ears are sleeved on the ear positioning columns 7-32 when in use, and the air bag is sewn on the air bag when in sewing. The braid positioning column adjusting seat 7-33 is adjustably arranged on the right part of the template bottom plate 7-1, the position of the braid positioning column adjusting seat corresponds to the braid sewing hole 7-24 on the upper pressure plate 7-2, the braid positioning column 7-34 is fixedly arranged on the braid positioning column adjusting seat 7-33, when in use, the corresponding positioning hole on the braid is sleeved on the braid positioning column 7-34, and when the air bag is sewn, the air bag is sewn on the air bag. The lug positioning frames 7-35 are adjustably arranged on the template bottom plate 7-1, the positions of the lug positioning frames can be correspondingly adjusted according to the positions of the placed lugs, the shapes of the lug positioning frames 7-35 correspond to the shapes of the corresponding lugs, and the positions of the lug positioning frames 7-35 correspond to the lug frame holes 7-26 on the upper pressing plate 7-2.

The formwork connecting assemblies 7-4 are provided with seven groups, and the seven groups of formwork connecting assemblies 7-4 are identical in structure and respectively comprise connecting plates 7-41, connecting plate mounting seats 7-42 and guide blocks 7-43. And among the seven groups of template connecting assemblies 7-4, four groups of the seven groups of template connecting assemblies are sequentially arranged at the rear end of the template base plate 7-1 from left to right, the arrangement distance between the four groups of template quick-assembly assemblies is respectively the same as the distance between the four groups of template quick-assembly assemblies 5, and corresponding proximity induction plates (not shown in the figure) are arranged on the two groups of template connecting assemblies 7-4 corresponding to the two groups of template quick-assembly assemblies 5 provided with the template mounting proximity switches 5-11. The other three groups of the template connecting assemblies are sequentially arranged at the front end of the template bottom plate 7-1 from left to right, the arrangement distance between the three groups of the template connecting assemblies is the same as the distance between the three groups of the left template quick-assembly assemblies 6a4, and corresponding proximity induction plates 7-44 are arranged on the two groups of the template connecting assemblies 7-4 corresponding to the two groups of the left template quick-assembly assemblies 6a4 provided with the template taking proximity switches 6a 6.

The connecting plate mounting seat 7-42 is fixedly arranged on the template bottom plate 7-1, the connecting plate 7-41 is fixedly arranged on the connecting plate mounting seat 7-42, and a pin shaft hole 7-41-1 penetrating through the upper part and the lower part of the connecting plate 7-41 is arranged on one side, far away from the template bottom plate 7-1. The number of the guide blocks 7-43 is two, and the two guide blocks 7-43 are respectively fixedly arranged on one side of the connecting plate mounting seat 7-42 far away from the template bottom plate 7-1 and are respectively positioned on the left side and the right side of the connecting plate 7-41.

When the pattern sewing machine is used: two empty formwork assemblies 7 are first placed on the left discharge platen 6a1-2 of the left mould changer 6a and the right discharge platen 6b1-2 of the right mould changer 6b, respectively. The connecting plates 7-41 on the front side of the template assembly 7 on the left mold changing device 6a extend to the lower side of the left template positioning seat 6a4-2 of the corresponding left template quick assembly 6a4, and the left positioning pin 6a4-3 of the left template quick assembly 6a4 extends upwards through the pin shaft hole 7-41-1 of the connecting plate 7-41 and then into the left guide sleeve 6a4-21 of the left template positioning seat 6a4-2, so that the template assembly 7 is fixedly connected to the left template quick assembly 6a 4.

The connecting plates 7-41 on the front side of the template assembly 7 on the right mold changing device 6b extend to the lower sides of the right template positioning seats 6b4-2 of the corresponding right template quick assembly 6b4, and the right positioning pins 6b4-3 of the right template quick assembly 6b4 upwardly penetrate through the pin shaft holes 7-41-1 of the connecting plates 7-41 and then extend into the right guide sleeves 6b4-21 of the right template positioning seats 6b4-2, so that the template assembly 7 is fixedly connected to the right template quick assembly 6b 4. After the worker places the air bag and the accessories (the lug and the woven belt) to be sewn on the template bottom plate 7-1, the upper pressure plate 7-2 is closed to press the air bag and the accessories.

Then, the left Y-direction driving mechanism 6a2 of the left mold changing device 6a drives the three groups of left mold board quick-assembly components 6a4 to push backwards, so that the connecting plates 7-41 of the mold board components 7 located on the rear side extend above the mold board positioning seats 5-2 of the corresponding mold board quick-assembly components 5, the positioning pins 5-3 of the mold board quick-assembly components 5 extend downwards through the pin shaft holes 7-41-1 of the connecting plates 7-41 and then extend into the guide sleeves 5-21 of the mold board positioning seats 5-2, so that the mold board components 7 are fixedly connected to the mold board quick-assembly components 5, then the left positioning pins 6a4-3 of the left mold board quick-assembly 6a4 retract downwards, and the left Y-direction driving mechanism 6a2 of the left mold changing device 6a drives the three groups of left mold board quick-assembly 6 a. The template quick assembly component 5 is driven to move by the X-direction driving mechanism 3 and the Y-direction driving mechanism 4, so that the template component 7 is driven to move, sewing is carried out by the sewing machine head 2, and during sewing, workers can carry out material placing on the template component 7 on the right die changing device 6 b. After the air bag on the former template assembly 7 is sewn, the air bag is taken down from the template fast assembly 5 to the left discharge bedplate 6a1-2 by the corresponding left die changing device 6a during feeding. Then the template assembly 7 on the right mold changing device 6b is sent to the template quick assembly 5, the template quick assembly 5 drives the template assembly 7 to move, and the sewing machine head 2 performs sewing. At this moment, the worker can take off the air bag sewn on the left die changing device 6a and place the next air bag to be sewn, so that the production efficiency is greatly improved.

The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention and sewing the airbag. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pattern sewing machine comprises a worktable mechanism, a sewing mechanism, an X-direction driving mechanism, a Y-direction driving mechanism, a template quick assembly and a template assembly; the worktable mechanism comprises a main frame and a worktable plate; the working bedplate is arranged on the main frame; the sewing mechanism comprises a sewing machine head which is fixedly arranged on the main frame; the X-direction driving mechanism and the Y-direction driving mechanism are arranged on the main rack, and the X-direction driving mechanism and the Y-direction driving mechanism drive the template quick-assembly component to drive the template component to move; the method is characterized in that: the template quick assembly fixing device further comprises a template replacing device, and the template assembly is conveyed to the template quick assembly by the template replacing device to be fixedly connected or taken out from the template quick assembly.

2. The pattern machine of claim 1, wherein: the die change devices are two; the number of the template components is also two; one mold changing device is used for placing the airbag to be sewn on one template assembly, the other template assembly with the airbag to be sewn is prepared to be taken down from the template quick assembly, and the two mold changing devices alternately convey the template assemblies and take down the template assemblies.

3. The pattern machine of claim 1, wherein: the X-direction driving mechanism comprises an X-direction mounting seat, an X-direction driving motor, a ball spline, an X-direction gear, an X-direction rack, an X-direction linear guide rail and an X-direction connecting seat assembly; the X-direction connecting seat assembly is arranged on the X-direction mounting seat in a left-right sliding mode through the X-direction linear guide rail; the X-direction rack is fixedly arranged on the upper part of the rear side of the X-direction connecting seat assembly in the left-right direction and meshed with the X-direction gear; the X-direction driving motor drives the X-direction gear to rotate through the ball spline, so that the X-direction connecting seat assembly moves left and right; the spline shaft of the ball spline shaft can slide back and forth; the template quick assembly is fixedly arranged on the X-direction connecting seat assembly;

the Y-direction driving mechanism comprises a Y-direction driving motor, a Y-direction main transmission assembly, a Y-direction driven transmission assembly, a Y-direction guide assembly and a Y-direction mounting seat; the Y-direction driven transmission assemblies are four groups, two groups of Y-direction driven transmission assemblies are symmetrically arranged on the left part of the main frame, and the other two groups of Y-direction driven transmission assemblies are symmetrically arranged on the right part of the main frame; the Y-direction guide assemblies are provided with four groups, and two groups of Y-direction guide assemblies are symmetrically arranged on the left part of the main frame and are positioned between the two corresponding groups of Y-direction driven transmission assemblies; the other two groups of Y-direction driven transmission assemblies are symmetrically arranged on the right part of the main frame and are positioned between the two corresponding groups of Y-direction driven transmission assemblies;

the X-direction connecting seat assembly is horizontally and fixedly connected to the four Y-direction mounting seats along the left-right direction; and the Y-direction driving motor drives each corresponding Y-direction mounting seat to synchronously move back and forth along the Y-direction guide component through the Y-direction main transmission component and each Y-direction driven transmission component, so that the X-direction mounting seat moves back and forth.

4. The pattern machine of claim 3, wherein: the X-direction driving mechanism also comprises a pinch roller; the pinch roller adopts cam driven bearing, and the pinch roller rotates and sets up on X to the mount pad, and its axis of rotation and the mutual parallel arrangement of axis of rotation of X to the gear, and the pinch roller is spacing to X to the rack from the top, and with X to rack rolling contact.

5. The pattern machine of claim 2, wherein: the template quick assembly components are four groups, the four groups of template quick assembly components have the same structure and respectively comprise a template positioning plate, a template positioning seat, a positioning pin and a positioning pin driving mechanism;

the X-direction connecting seat assembly of the X-direction driving mechanism comprises a left X-direction connecting seat, a right X-direction connecting seat and a middle X-direction connecting seat; the left X-direction connecting seat and the right X-direction connecting seat have the same structure, and are fixedly arranged on corresponding sliding blocks on the X-direction linear guide rail from left to right in sequence; the middle X-direction connecting seat is fixedly connected with the left X-direction connecting seat and the right X-direction connecting seat respectively and is used for fixedly connecting the left X-direction connecting seat and the right X-direction connecting seat;

the four groups of template quick-assembly components are sequentially arranged on the front side of the X-direction connecting seat component from left to right; each template positioning plate is fixedly arranged on the corresponding left X-direction connecting seat and the right X-direction connecting seat; the template positioning seat is fixedly arranged on the lower part of the front side of the template positioning plate, a pin shaft hole penetrating through the template positioning seat is arranged on the template positioning seat, and a guide sleeve is arranged in the pin shaft hole; the positioning pin driving mechanism adopts an air cylinder, is fixedly arranged on the upper part of the front side of the template positioning plate and is positioned above the template positioning seat, a piston rod of the positioning pin driving mechanism extends downwards, the positioning pin is fixedly arranged on the end head of the piston rod and is coaxially arranged with a guide sleeve of the template positioning seat, and the positioning pin driving mechanism drives the positioning pin to move up and down.

6. The pattern machine of claim 5, wherein: the two die change devices are divided into a left die change device and a right die change device according to the left and right positions of the die change devices;

the left die changing device comprises a left workbench component, a left Y-direction driving mechanism and a left template quick assembly; the left workbench component comprises a left rack and a left discharge bedplate; the left discharge bedplate is horizontally and fixedly arranged on the left rack and is level with the working bedplate; the left Y-direction driving mechanism comprises a left Y-direction driving motor, a left Y-direction main transmission assembly, a left Y-direction driven transmission assembly and a left Y-direction guide assembly; the left Y-direction driven transmission assemblies are arranged on the upper part of the left rack from left to right in sequence; the left Y-direction guide assemblies are arranged on the left rack from left to right and are positioned on the right side of the corresponding 1 group of left Y-direction driven transmission assemblies; three groups of left side template fast-assembling components are provided; the three groups of left template quick-assembly components are respectively arranged on the corresponding 1 group of left Y-direction driven transmission components, and a left Y-direction driving motor drives each corresponding left template quick-assembly component to synchronously move back and forth along the left Y-direction guide component through the left Y-direction main transmission component and each left Y-direction driven transmission component;

the right die changing device comprises a right workbench component, a right Y-direction driving mechanism, a right movable platen component, a right template quick assembly group and a right synchronous connecting plate; the right workbench component comprises a right rack and a right discharge bedplate; the right discharging bedplate is horizontally and fixedly arranged on the right rack and is level to the working bedplate; the right Y-direction driving mechanism comprises a right Y-direction driving motor, a right Y-direction main transmission assembly, a right Y-direction driven transmission assembly and a right Y-direction guide assembly; the left Y-direction driven transmission assemblies are sequentially arranged on the upper part of the left rack from left to right; the right Y-direction guide assemblies are provided with three groups, and the three groups of right Y-direction guide assemblies are sequentially arranged on the right rack from left to right and are positioned on the left side of the corresponding 1 group of right Y-direction driven transmission assemblies; the right side template quick assembly components comprise three groups; the three groups of right template fast-assembling components are respectively arranged on the corresponding 1 group of right Y-direction driven transmission components; a right Y-direction driving motor drives each corresponding right template quick assembly component to synchronously move back and forth along the right Y-direction guide component through the right Y-direction main transmission component and each right Y-direction driven transmission component;

the distance between the three groups of right side template quick-assembly components is the same as the distance between the three groups of left side template quick-assembly components.

7. The pattern machine of claim 6, wherein: the left die changing device also comprises a left synchronous connecting plate; the three groups of left template quick-assembly components have the same structure and respectively comprise a left template positioning seat, a left positioning pin and a left positioning pin driving mechanism; the left template positioning seat is fixedly arranged on the corresponding left Y-direction guide assembly, a pin shaft hole penetrating through the left template positioning seat is arranged on the left template positioning seat, and a left guide sleeve is arranged in the pin shaft hole; the left positioning pin driving mechanism adopts an air cylinder, is fixedly arranged on the left Y-direction guide assembly and is positioned below the left template positioning seat, a piston rod of the left positioning pin driving mechanism extends upwards, the left positioning pin is fixedly arranged on the end head of the piston rod and is coaxially arranged with a left guide sleeve of the left template positioning seat, and the left positioning pin driving mechanism drives the left positioning pin to move up and down; the left synchronous connecting plate is horizontally arranged on the upper side of the left discharging bedplate in the left-right direction and is fixedly connected with the upper parts of the front sides of the left template mounting seats of the three groups of left template fast-assembling assemblies; the left synchronous connecting plates of the two groups of left template quick-assembly components are provided with template taking proximity switches;

the right die changing device also comprises a right synchronous connecting plate; the three groups of right template quick-assembly components have the same structure and respectively comprise a right template positioning seat, a right positioning pin and a right positioning pin driving mechanism; the right template positioning seat is fixedly arranged on the corresponding right Y-direction guide assembly, a pin shaft hole penetrating through the right template positioning seat is arranged on the right template positioning seat, and a right guide sleeve is arranged in the pin shaft hole; the right positioning pin driving mechanism adopts an air cylinder, is fixedly arranged on the right Y-direction guide assembly and is positioned below the right template positioning seat, a piston rod of the right positioning pin driving mechanism extends upwards, the right positioning pin is fixedly arranged on the end of the piston rod and is coaxially arranged with a right guide sleeve of the right template positioning seat, and the right positioning pin driving mechanism drives the right positioning pin to move up and down; the right synchronous connecting plate is horizontally arranged on the upper side of the right discharging bedplate in the left-right direction and is fixedly connected with the upper parts of the front sides of the right template mounting seats of the three groups of right template fast-assembling assemblies; and a template taking proximity switch is arranged on the right synchronous connecting plate of the two right template fast-assembling assemblies.

8. The pattern machine of claim 6, wherein: the left die changing device also comprises a left movable platen assembly; the left movable platen assembly comprises a turnover platen, a turnover platen frame and a platen driving mechanism; the turnover table plate is fixedly arranged on the turnover table plate frame; the left side of the turnover table frame is hinged to the upper part of the right side of the left side rack, the table driving mechanism comprises two cylinders, the two cylinders are respectively hinged to the front part and the rear part of the right side of the left side rack through respective cylinder bodies, and the ends of piston rods of the two cylinders are respectively hinged to the front part and the rear part of the right part of the lower side of the turnover table frame; the bedplate driving mechanism drives the turnover bedplate rack to be upward and horizontal, so that the turnover table is connected with the left discharge bedplate and is level or drives the right part of the turnover bedplate to be downward inclined;

the right die changing device also comprises a right movable platen assembly; the right movable platen assembly comprises a turnover platen, a turnover platen frame and a platen driving mechanism, and the turnover platen is fixedly arranged on the turnover platen frame; the right side of the turnover table frame is hinged to the upper part of the left side of the right side rack, the table driving mechanism comprises two cylinders, the two cylinders are respectively hinged to the front part and the rear part of the left side of the right side rack through respective cylinder bodies, and the ends of piston rods of the two cylinders are respectively hinged to the front part and the rear part of the left part of the lower side of the turnover table frame; therefore, the bedplate driving mechanism drives the turnover bedplate rack to be upward and horizontal, so that the turnover bedplate is connected with the right discharge bedplate and is flat or drives the left part of the turnover bedplate to be downward inclined.

9. Pattern machine according to one of the claims 6 to 8, characterized in that: the three groups of left Y-direction guide assemblies have the same structure and respectively comprise a left Y-direction first linear guide rail, a left sliding seat and a left dustproof conveying belt; the guide rail of the left Y-direction first linear guide rail is fixedly arranged on the left rack along the front-back direction; the left sliding seat is fixedly arranged on a sliding block of the left Y-direction first linear guide rail; two ends of the left dustproof conveying belt are fixedly arranged on the left rack, are positioned above the guide rail of the left Y-direction first linear guide rail and are used for preventing dust of the guide rail; the left sliding seat is arranged on the left dustproof conveying belt in a sliding manner;

the three groups of right Y-direction guide assemblies have the same structure and respectively comprise a right Y-direction first linear guide rail, a right sliding seat and a right dustproof conveying belt; the guide rail of the right Y-direction first linear guide rail is fixedly arranged on the right rack along the front-back direction; the right sliding seat is fixedly arranged on a sliding block of the right Y-direction first linear guide rail; two ends of the right dustproof conveying belt are fixedly arranged on the right rack, are positioned above the guide rail of the right Y-direction first linear guide rail and are used for preventing dust of the guide rail; the right side slide is arranged on the right side dustproof conveying belt in a sliding mode.

10. Pattern-sewing machine as claimed in claims 6 to 8, characterized in that: the template component comprises a template bottom plate, an upper pressure plate, an accessory positioning component and a template connecting component; a group of airbag positioning columns are arranged on the template bottom plate, and the airbag positioning columns are fixedly arranged on the template bottom plate and are encircled into a shape corresponding to that of the airbag; the template bottom plate is provided with a lower die hole which penetrates through the upper part and the lower part of the template bottom plate and has a shape corresponding to the sewing stitch of the air bag;

the upper pressing plate is provided with an upper die hole which penetrates through the upper part and the lower part of the upper pressing plate and has a shape corresponding to the sewing stitch of the air bag; the upper pressure plate is hinged to the template bottom plate from the rear side of the upper pressure plate, a reinforcing frame with the shape corresponding to the upper pressure plate is fixedly arranged on the periphery of the upper side of the upper pressure plate and used for improving the overall strength of the upper pressure plate, and reinforcing ribs are further arranged on the part, located inside the reinforcing frame, of the upper pressure plate; the left side and the right side of the upper pressure plate are connected with the template bottom plate through air springs; the upper pressing plate is also provided with a positioning column hole corresponding to the airbag positioning column on the template bottom plate; the right side of the upper pressure plate is provided with a braid sewing hole penetrating through the upper side and the lower side of the upper pressure plate, and the front side and the rear side of the upper side of the braid sewing hole are respectively provided with a braid pressing magnet; the middle part of the rear side of the upper pressure plate is provided with an ear frame hole which penetrates through the upper part and the lower part of the upper pressure plate; the left side and the right side of the front part of the upper pressure plate are respectively provided with a handle;

the accessory positioning column component comprises an ear piece positioning column adjusting seat, an ear piece positioning column, a braid positioning column adjusting seat, a braid positioning column and an ear piece positioning frame; the lug adjusting seat is adjustably arranged on the template bottom plate, and the position of the lug adjusting seat can be correspondingly adjusted according to the position of the placed lug; the lug positioning column is fixedly arranged on the lug adjusting seat; the mesh belt positioning column adjusting seat is adjustably arranged on the right part of the template bottom plate and corresponds to a mesh belt sewing hole on the upper pressing plate, and the mesh belt positioning column is fixedly arranged on the mesh belt positioning column adjusting seat; the lug positioning frame is adjustably arranged on the template bottom plate, the position of the lug positioning frame can be correspondingly adjusted according to the position of the placed lug, the shape of the lug positioning frame corresponds to that of the corresponding lug, and the position of the lug positioning frame corresponds to that of a lug frame hole on the upper pressure plate; the template connecting assembly is used for being fixedly connected with the template quick assembly and the mold changing device.

11. The pattern machine of claim 10, wherein: a template mounting proximity switch is arranged on a template positioning plate of a two-group template quick assembly in the four-group template quick assembly; the front side of the template assembly is provided with three groups of template connecting assemblies, the rear side of the template assembly is provided with four groups of template connecting assemblies, and the seven groups of template connecting assemblies have the same structure and respectively comprise a connecting plate, a connecting plate mounting seat and a guide block; the connecting plate mounting seat is fixedly arranged on the template bottom plate, the connecting plate is fixedly arranged on the connecting plate mounting seat, and a pin shaft hole penetrating through the upper part and the lower part of the connecting plate is arranged on one side of the connecting plate, which is far away from the template bottom plate; the two guide blocks are respectively fixedly arranged on one side of the connecting plate mounting seat far away from the template bottom plate and are respectively positioned on the left side and the right side of the connecting plate; corresponding proximity induction plates are arranged on two groups of template connecting components corresponding to two groups of template fast-assembling components provided with template mounting proximity switches on the rear sides of the template components; and the front side of the template assembly and two groups of template connecting assemblies corresponding to the two groups of left template quick-assembly assemblies provided with the template taking proximity switches are provided with corresponding proximity induction plates.

12. The pattern machine of claim 10, wherein: the upper pressing plate is fixedly provided with a group of pressing plate pressing magnets along the periphery of the upper die hole, and the pressing plate pressing magnets are used for adsorbing the template bottom plate located below.