CN107385690B - A kind of the sewing clamping device and sewing machine of sewing machine - Google Patents

Abstract

The present invention provides a kind of sewing clamping device of sewing machine, including driving the material folding fixed plate of movement by feeding manipulator and being mounted on the material folding component in material folding fixed plate and for clamping sewing, it is fixed with air blowing component in the material folding fixed plate, several gas holes towards sewing are offered on the air blowing component.It is mobile by the mobile drive material folding component synchronization of material folding fixed plate in the application, and then sewing clamped by material folding component is transferred on platen, realize automatic charging；Particularly, after clamping sewing by material folding component, or during unclamping sewing after sewing is placed on platen by material folding component and retreating reset, gas hole starts to blow to sewing, so that the sewing on platen be flattened, sewing is effectively avoided to generate buckling phenomena.

Description

Sewing material clamping device of automatic sewing equipment and automatic sewing equipment

technical field

The invention relates to a sewing material clamping device of automatic sewing equipment.

The present invention also relates to an automatic sewing device comprising the above-mentioned sewing material clamping device.

Background technique

At present, there are two feeding methods in automatic sewing equipment: one is manual feeding, which can accurately place the sewing material on the designated position of the table, so the quality of feeding is high, but the efficiency of manual feeding Very low, and the workload is heavy; the other is to feed through the sewing material clamping device in the automatic sewing equipment, the sewing material clamping device clamps the sewing material and transfers the sewing material to the table, and its feeding efficiency is high , greatly reducing the labor force of workers. In the prior art, the sewing material clamping device is composed of two splints arranged up and down opposite to each other, and the two splints can perform opening and closing actions to achieve the purpose of clamping the sewing material. However, the sewing material clamping device of the splint structure tends to move relative to the sewing material when it moves, thereby causing wrinkles and scratches on the sewing material. Meanwhile, the universality of the sewing material clamping device of the splint structure is not good.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a sewing material clamping device of automatic sewing equipment, which can flatten the sewing material after it is transferred to the table.

In order to achieve the above object, the present invention provides a sewing material clamping device for automatic sewing equipment, which includes a clamping fixed plate driven by a feeding manipulator, and a clamp mounted on the clamping fixed plate for clamping the sewing material. A material assembly, an air blowing assembly is fixed on the clamping material fixing plate, and several air blowing holes facing the sewing material are opened on the air blowing assembly.

Preferably, the blowing angle of the blowing hole is 40°-50°.

Further, the air blowing assembly includes an air source, several sections of air blowing pipes and connecting air pipes arranged at intervals, two adjacent sections of air blowing pipes are connected by a connecting air pipe, and the air blowing holes are opened on the air blowing pipes. The air blowing pipe is fixed on the clamping fixed plate; in the multi-section connecting air pipe, the connecting air pipe used to connect the first blowing pipe and the tail blowing pipe is a Y-shaped connecting air pipe, and the Y-shaped connecting air pipe is located at the end of the clamping fixed plate , and connected with the gas source.

Preferably, an air blowing pipe fixing block is fixed at the blowing pipe at the bottom of the clamping fixing plate, and an air blowing pipe pressure plate is fixed at the bottom of the air blowing pipe fixing block, and the air blowing pipe is fixed and clamped between the air blowing pipe pressure plate and the blowing pipe. Between the air pipe fixing blocks, the pressure plate of the air blow pipe is provided with an arc portion matching the outer peripheral surface of the air blow pipe.

Preferably, the air blowing pipe is provided on both the front and the back of the clamping and fixing plate.

Further, the clamping assembly includes a clamping driving source fixed on the clamping fixed plate, two opposite clamping jaw arms, and two opposite clamping arms, and the output end of the clamping driving source is connected to the two clamping arms. The two jaw arms are connected to each other and drive the ends of the two jaw arms away from the clamping driving source to move toward or back, and the two clamping arms are respectively fixed on the ends of the two clamping jaw arms away from the clamping driving source.

Preferably, anti-slip sheets are fixed on opposite surfaces of the two clamping arms.

Further, the clamping drive source has a retractable clamping drive part, the end of the clamping drive part is hinged with a transmission shaft, and the end of the clamping jaw arm close to the clamping drive source is hinged to the clip through a connecting shaft. The housing of the material driving source, the transmission shaft and the connecting shaft are all perpendicular to the stretching direction of the clamping drive part; the ends of the two jaw arms close to the clamping drive source are provided with oppositely arranged connecting parts, and the two connecting parts A mounting cavity for accommodating the end of the clamping drive part is formed between them, and a chute between the clamping drive part and the connecting shaft is opened on each connecting part, and the two ends of the transmission shaft are slidably installed on the two ends respectively. In the chute of the two connecting parts, and the outer peripheral surface of the transmission shaft is in contact with the groove wall of the chute.

Preferably, the clamping driving source is a cylinder or an electromagnet, and the piston rod of the cylinder or the iron core of the electromagnet constitutes the clamping driving part.

The present invention also provides an automatic sewing device, which has the above-mentioned sewing material clamping device.

As mentioned above, the sewing material clamping device of the automatic sewing equipment and the automatic sewing equipment related to the present invention have the following beneficial effects:

In this application, the clamping assembly is driven to move synchronously by the movement of the clamping fixed plate, and then the sewing material clamped by the clamping component is transferred to the platen to realize automatic feeding; especially, when clamped by the clamping component After the sewing material is held, or in the process of releasing the sewing material after the clamping component places the sewing material on the table and backing up to reset, the air blowing hole starts to blow air to the sewing material, thereby flattening the sewing material on the table, Effectively avoid wrinkles in the sewing material.

Description of drawings

Fig. 1 and Fig. 2 are structural schematic diagrams of the sewing material clamping device in the present application.

FIG. 3 is a schematic diagram of the structure in FIG. 1 omitting one driving source for sandwiching materials.

Fig. 4 is a structural schematic diagram of the automatic sewing equipment in the present application.

Fig. 5 is the state when the sewing material is being placed.

Fig. 6 is a state diagram of the sewing material clamping device in the present application clamping and transferring the sewing material being placed.

Figure 7 is the state when the sewing material is reversed.

Fig. 8 is a state view of the sewing material clamping device clamping and transferring reversed sewing material in the present application.

Component designation description

1 clip fixing plate

2 clamping components

21 Clip driving source

211 clamping drive unit

22 Gripper arm

221 connection part

222 chute

23 Jaw

24 Anti-slip sheet

25 drive shaft

26 connecting shaft

3 Blowing components

31 Blow holes

32 blow pipe

33 Connect the air pipe

34 First section blow pipe

35 End blow pipe

36 Blow tube fixing block

37 Blow pipe pressure plate

371 arc part

4 sewing material

5 racks

6 pallets

7 sewing machine

8 cloth table

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, there is no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the scope of technical content. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for convenience of description and are not used to limit the present invention. The practicable scope, the change or adjustment of its relative relationship, without any substantial change in the technical content, shall also be regarded as the practicable scope of the present invention.

As shown in Figures 1 and 2, the present application provides a sewing material clamping device for automatic sewing equipment, including a material clamping fixed plate 1 driven by a feeding manipulator, and a material clamping fixed plate 1 installed on the material clamping fixed plate 1 and used for The clamping component 2 for clamping the sewing material 4, the clamping fixed plate 1 is fixed with a blowing component 3, and the blowing component 3 is provided with several blowing holes 31 facing the sewing material 4, and the feeding manipulator It is erected on the frame 5 of the automatic sewing equipment, and a table 6 is fixed on the frame 5 of the automatic sewing equipment, and a sewing machine 7 is installed on the table 6 . For ease of description, the feeding direction of the feeding mechanism in the sewing machine 7 is defined as the left direction. Therefore, the length direction of the platen 6 is the left-right direction, the thickness direction of the platen 6 is the up-down direction, and the width direction of the platen 6 is the front-rear direction. In this embodiment, the clamping fixed plate 1 is a long strip extending forward and backward, the extending direction of the clamping fixed plate 1 is also the width direction of the sewing material 4, and the clamping component 2 is installed on the left end surface of the clamping fixed plate 1 superior.

In the initial state, as shown in FIG. 4 , the sewing material clamping device is located on the right side of the cloth placing table 8 in the automatic sewing equipment, and is positioned at the lower side of the platen 6 , and the sewing material 4 is placed on the cloth placing table 8 . When feeding, the clamping assembly 2 clamps the left or right edge of the sewing material 4, and the clamping fixed plate 1 is driven by the feeding manipulator to move to the right, upward and left in turn, or driven by the feeding manipulator The clamping fixed plate 1 moves upwards and leftwards sequentially, and then drives the clamped sewing material 4 to move synchronously through the clamping component 2 until the sewing material 4 is transferred to the table 6 to realize automatic feeding. Especially, after the sewing material 4 is clamped by the material clamping assembly 2, or in the process of releasing the sewing material 4 after the material clamping assembly 2 places the sewing material 4 on the table 6 and retreating to reset, the air blowing hole 31 starts Blowing air to the seam material 4 can blow up the seam material 4 , thereby flattening the seam material 4 on the platen 6 , effectively preventing the seam material 4 from wrinkling and scratching. In addition, in this application, the sewing material clamping device as a whole mainly moves along the X-axis in the left and right directions, and moves along the Z-axis in the up and down direction, so the sewing material clamping device as a whole is equivalent to that of an industrial robot in a two-degree-of-freedom Cartesian coordinate system. Manipulator, but in other embodiments, the sewing material clamping device can also be used on industrial robots in spherical coordinate system, cylindrical coordinate system, and polar coordinate system to act as a manipulator, so the sewing material clamping device has strong versatility.

As shown in Figures 1 to 3, the blowing assembly 3 includes an air source, and several sections of blowing pipes 32 and connecting air pipes 33 arranged at intervals, and two adjacent sections of blowing pipes 32 are communicated by a section of connecting air pipe 33, so The air blowing hole 31 is provided on the air blowing pipe 32, and the air blowing pipe 32 is fixed on the lower end of the clamping plate 1; in the multi-section connecting air pipe 33, one section of the air blowing pipe 34 and the tail end air blowing pipe 35 is used to connect the connecting air pipe 33 is a Y-type connection air pipe, which is located at the rear end of the clamping plate 1 and is connected with the gas source, so the gas source, multi-section air blowing pipe 32 and multi-section connection air pipe 33 form an air circuit. When the clamping assembly 2 releases the clamped sewing material 4 , the air source starts to supply air, so that the blowing hole 31 blows air to the sewing material 4 . The front side (i.e. the left end face) and the back side (i.e. the right end face) of the clamping fixed plate 1 are provided with the air blowing pipe 32, and the air blowing tube 32 positioned at the left side of the clamping fixed plate 1 and the air blowing tube 32 positioned at the clamping fixed plate 1 The air blowing pipe 32 on the right side is symmetrically arranged with the clamping fixed plate 1 left and right, and a section of blowing tube 32 fixed on the rearmost end of the left end surface of the clamping fixed plate 1 is the first blowing tube 34, which is fixed on the right end of the clamping fixed plate 1 A section of air blowing pipe 32 at the rearmost end on the face is the tail section air blowing pipe 35 . Preferably, the air connection pipe is bent and extended so as to bypass the material clamping assembly 2 or the material clamping fixing plate 1 .

The fixed structure of the air blowing pipe 32 and the clamping fixed plate 1 is: as shown in Figure 2 and Figure 3, the bottom of the described clamping fixed plate 1 is fixed with a plurality of blowing tube fixing blocks 36 by screws at the blowing tube 32, each The bottom of block air blowing pipe fixing block 36 is fixed with air blowing pipe pressing plate 37 by screw, and described air blowing pipe 32 is fixedly clamped between air blowing pipe pressing plate 37 and air blowing pipe fixing block 36, and the left and right ends of described air blowing pipe pressing plate 37 Both are provided with a circular arc portion 371 matching the outer peripheral surface of the air blowing pipe 32 . In particular, the blowing tube 32 on the left side of the clamping plate 1 and the blowing tube 32 on the right side of the clamping plate 1 share a blowing tube fixing block 36 and a blowing tube pressing plate 37 when they are fixedly installed.

In addition, the blowing angle of the blowing hole 31 is 40° to 50°, preferably 45°, which maximizes the blowing range without affecting the wind force; the blowing angle of the blowing hole 31 is also the The angle between the centerline and the horizontal plane. And, the blow hole 31 on the blow pipe 32 on the left side of the clamping fixed plate 1 is blown to the lower left with a 45 ° angle, and the blow hole 31 on the blow tube 32 on the right side of the clamp fixed plate 1 is blown at a 45 ° angle. Blow air to the lower right, so that the air blowing assembly 3 blows air on the sewing material 4 in a "eight" shape other than the whole, so that the sewing material 4 can be blown up better and the sewing material 4 can be flattened well.

As shown in FIG. 3 , there are two groups of clamping components 2 arranged side by side along the length direction of the clamping and fixing plate 1 . Each group of clamping components 2 includes a clamping drive source 21 fixed on the left end surface of the clamping fixed plate 1, two clamping jaw arms 22 arranged up and down oppositely, and two clamping arms 23 arranged up and down oppositely. The output end of the driving source 21 is connected with the two jaw arms 22, and drives the two jaw arms 22 to move away from the left end of the clamping driving source 21 to move toward or back, and the two jaw arms 23 are respectively fixed on the two jaws. The left end of the arm 22. When the output end of the clamping drive source 21 drives the left ends of the two clamping arms 22 to move toward each other or back, the two clamping arms 22 respectively drive the two clamping arms 23 to move towards each other or back to realize the two clamping arms 23 The closing or opening of the sewing machine realizes the clamping of the sewing material 4 or the release of the sewing material 4. The clamping driving source 21 is a cylinder or an electromagnet, and when the clamping driving source 21 is a cylinder, the piston rod of the cylinder constitutes the output end of the clamping driving source 21; when the clamping driving source 21 is an electromagnet, the electromagnet The iron core constitutes the output end of the clamping drive source 21; therefore, the output end of the clamping drive source 21 is a clamping drive part 211 that can expand and contract along the left and right directions.

Further, the specific structure of driving the left ends of the two clamping jaw arms 22 to move toward or against each other by the clamping driving part 211 is as follows: as shown in FIG. 25, the right end of the jaw arm 22 close to the clamping drive source 21 is hinged to the housing of the clamping drive source 21 through the connecting shaft 26 extending forward and backward, so the connecting shaft 26 constitutes the swing fulcrum of the clamping jaw arm 22; the transmission Both the shaft 25 and the connecting shaft 26 are perpendicular to the stretching direction of the clamping drive part 211 . Among the two gripper arms 22, the lower end of the gripper arm 22 on the upper side near the right end of the gripping drive source 21 is provided with a connecting portion 221 extending downward, and the connecting portion 221 is provided with a connecting portion 221 extending up and down and penetrating downward. The chute 222 of the connecting portion 221, the upper end of the jaw arm 22 located on the lower side near the right end of the clamping driving source 21 is provided with an upwardly extending connecting portion 221, and the connecting portion 221 is provided with a vertically extending and upwardly penetrating the connecting portion 221. The chute 222 of the connecting portion 221, the connecting portion 221 of the two jaw arms 22 are arranged opposite to the left and right, and an installation cavity for accommodating the left end of the clamping driving portion 211 is formed between the two connecting portions 221, and the left and right sides of the transmission shaft 25 The ends are respectively slidably installed in the chute 222 of the two connecting parts 221, and the outer peripheral surface of the transmission shaft 25 is in contact with the groove wall of the chute 222, and the chute 222 is located between the clamping driving part 211 and the connecting shaft 26 between. When the clamping driving part 211 stretches out to the left, the clamping arm 22 on the upper side drives the clamping arm 23 to swing upward, and the clamping arm 22 on the lower side drives the clamping arm 23 to swing downward, thereby realizing two clamping arms 23 to loosen the sewing material 4; when the clamping driving part 211 retracts to the right, the clamping arm 22 on the upper side drives the clamping arm 23 to swing downward, and the clamping arm 22 on the lower side drives the clamping arm 23 swings upwards, and then realizes the closing of two clamping arms 23, to clamp the sewing material 4.

As shown in Figure 1, anti-slip sheet 24 is fixed on the opposite surface of two clamp arms 23 (that is, the lower end surface of the clamp arm 23 positioned at the upper side and the upper end surface of the clamp arm 23 positioned at the lower side). 24 is in contact with the sewing material 4, which can increase the friction between the sewing material 4 and avoid relative sliding between the sewing material 4. The material clamping assembly 2 and other components are made of aluminum, so that the sewing material clamping device is relatively light as a whole.

The present invention also provides an automatic sewing device, which has the above-mentioned sewing material clamping device.

Further, the sewing material 4 on the cloth placing table 8 in the automatic sewing equipment can be placed forwardly or backwardly. Specifically, when the sewing material 4 is placed on the cloth placing table 8 in the forward direction, as shown in Figure 5 and Figure 6, the left edge of the sewing material 4 is the starting point of movement of the sewing material clamping device: in the initial state, the sewing material clamp The holding device is located at the left edge of the sewing material 4. Afterwards, the sewing material clamping device clamps the left edge of the sewing material 4 and moves to the right, upward, and left in turn until the sewing material 4 is placed on the table 6 on. When the sewing material 4 is reversely placed on the cloth placing table 8, as shown in Figure 7 and Figure 8, the right edge of the sewing material 4 is the starting point of movement of the sewing material clamping device: in the initial state, the sewing material clamping device is located at At the right edge of the sewing material 4, afterward, the sewing material clamping device clamps the right edge of the sewing material 4, and moves upwards and leftwards successively until the sewing material 4 is placed on the platen 6. Therefore, reverse sewing can reduce a section of stroke of the sewing material clamping device moving to the right, so reverse sewing is a preferred feeding method during sewing.

To sum up, the sewing material clamping device involved in this application can effectively avoid the phenomenon of wrinkling or scraping of the sewing material 4 while realizing automatic loading, and has a high degree of automation. Compared with manual loading, it can Improve work efficiency; and the sewing material clamping device has simple structure, strong versatility, and long service life. The motion control of the material clamping component 2 is realized by a cylinder or an electromagnet, and the energy consumption is very low.

Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (9)

1. a kind of sewing clamping device of sewing machine, including by the mobile material folding fixed plate (1) of feeding manipulator driving, And it is mounted on the material folding component (2) on material folding fixed plate (1) and for clamping sewing (4), it is characterised in that: the material folding is solid It is fixed on fixed board (1) air blowing component (3), offers several gas holes towards sewing (4) on the air blowing component (3) (31)；The air blowing component (3) includes gas source and several sections are spaced apart from each other the gas blow pipes (32) of setting and connect tracheae (33), Two sections of adjacent gas blow pipes (32) are connected to by one section of connection tracheae (33), and the gas hole (31) is provided on gas blow pipe (32), The gas blow pipe (32) is fixed on material folding fixed plate (1)；Multistage connect tracheae (33) in, for connect first section gas blow pipe (34) and One section of connection tracheae (33) of endpiece gas blow pipe (35) is that Y type connects tracheae, and Y type connection tracheae is located at material folding fixed plate (1) End and be connected with the gas source.

2. sewing clamping device according to claim 1, it is characterised in that: the air blowing angle of the gas hole (31) is 40 °~50 °.

3. sewing clamping device according to claim 1, it is characterised in that: blowing the bottom of the material folding fixed plate (1) It is fixed at tracheae (32) gas blow pipe fixed block (36), the bottom of the gas blow pipe fixed block (36) is fixed with gas blow pipe pressing plate (37), the gas blow pipe (32), which is fixed, is clamped between gas blow pipe pressing plate (37) and gas blow pipe fixed block (36), the air blowing Pipe pressing plate (37) is equipped with arc sections (371) compatible with gas blow pipe (32) outer peripheral surface.

4. sewing clamping device according to claim 1, it is characterised in that: the front of the material folding fixed plate (1) and back Face is designed with the gas blow pipe (32).

5. sewing clamping device according to claim 1, it is characterised in that: the material folding component (2) includes being fixed on folder Expect material folding driving source (21), two clamping jaw arms (22) being oppositely arranged and two clamp arm being oppositely arranged of fixed plate (1) (23), the output end of the material folding driving source (21) is connected with two clamping jaw arms (22) and drives two clamping jaw arms (22) remote One end from material folding driving source (21) is opposite or backwards to moving, and it is separate that two clamp arm (23) are separately fixed at two clamping jaw arms (22) One end of material folding driving source (21).

6. sewing clamping device according to claim 5, it is characterised in that: be installed on the opposite face of two clamp arm (23) Anti-skid sheet (24).

7. sewing clamping device according to claim 5, it is characterised in that: the material folding driving source (21) has scalable Material folding driving portion (211), the end of the material folding driving portion (211) is hinged with transmission shaft (25), and the clamping jaw arm (22) is leaned on One end of nearly material folding driving source (21) is articulated with the shell of material folding driving source (21), the transmission shaft (25) by connecting shaft (26) Telescopic direction with connecting shaft (26) all perpendicular to material folding driving portion (211)；Two clamping jaw arms (22) are close to material folding driving source (21) one end is equipped with the interconnecting piece (221) being oppositely arranged, and is formed between two interconnecting pieces (221) and accommodates material folding driving portion (211) installation cavity of end, offer on each interconnecting piece (221) positioned at material folding driving portion (211) and connecting shaft (26) it Between sliding slot (222), the both ends of the transmission shaft (25) are slidably fitted to the sliding slot of two interconnecting pieces (221) (222) in and the outer peripheral surface of transmission shaft (25) is in contact with the cell wall of sliding slot (222).

8. sewing clamping device according to claim 7, it is characterised in that: the material folding driving source (21) is cylinder or electricity Magnet, the piston rod of cylinder or the iron core of electromagnet constitute the material folding driving portion (211).

9. a kind of sewing machine, it is characterised in that: have described in any one of claim 1-8 in the sewing machine Sewing clamping device.