CN213172830U - Flat knitting machine and roller opening and closing mechanism thereof - Google Patents

Abstract

The utility model discloses a flat knitting machine and roller opening and closing mechanism thereof, wherein a transmission shaft and a linkage shaft of the opening and closing mechanism are respectively pivoted on a car wall, two groups of transmission components are respectively correspondingly configured with the rotating shafts of a first roller and a second roller and are respectively arranged between the rotating shaft of the corresponding roller and the linkage shaft and the transmission shaft in a transmission way; the transmission shaft and the linkage shaft are respectively in one-way transmission connection with corresponding swing blocks through one-way rotating clutch pieces, and when the transmission shaft rotates along a first rotating direction, the first swing blocks can synchronously rotate to an opening working position from a normal position; when the linkage shaft rotates along the second rotation direction, the second swing block can synchronously rotate to the opening working position from the normal position; and the two linkage assemblies are respectively arranged between the corresponding side swing blocks and the roller bracket in a transmission way so as to drive the roller bracket to rotate around the hinged center of the roller bracket. By applying the scheme, the synchronism of opening and closing operation between the front bed roller and the back bed roller can be ensured, the control precision of opening and closing between the rollers is enhanced, and the practicability of the computer flat knitting machine is effectively improved.

Description

Flat knitting machine and roller opening and closing mechanism thereof

Technical Field

The utility model relates to a computer flat knitting machine technical field especially relates to a flat knitting machine and roller mechanism that opens and shuts thereof.

Background

The drawing and winding process of the flat knitting machine is to draw the formed knitted fabric out of the knitting area through an upper roller and a lower roller. Wherein the upper roller, which is closer to the woven cloth piece, plays a major pulling role. In the actual working process, the driving force output by the upper roller motor is generally transmitted to the upper roller driving rod through a chain mechanism, and the driven rod is driven by the driving rod to synchronously rotate, so that the fabric clamped between the driving rod and the driven rod is pulled downwards. However, since the upper roller driving lever and the upper roller driven lever are disposed on the front and rear needle beds, respectively, the opening and closing operations of the front and rear rollers of the upper roller cannot be reliably synchronized.

At the start of the knitting operation, the opening/closing distance of the top roller may be insufficient.

In view of this, it is desirable to optimize the existing roller opening and closing mechanism to improve the synchronism of the opening and closing operation of the front and back bed rollers.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a flat knitting machine and roller mechanism that opens and shuts thereof can ensure the synchronism of the operation that opens and shuts between preceding, back bed roller.

Further through configuration optimization, the utility model discloses can also effectively adapt to the roller and use the distance demand that opens and shuts under the operating mode in the difference.

The utility model provides a roller mechanism that opens and shuts for arrange the roller between the car wall group in, the first roller and the second roller of looks adaptation pin joint respectively in with preceding, back bed roller curb plate articulated roller support top, still include: the driving part is arranged on one side of the vehicle wall; the transmission shaft and the linkage shaft are respectively pivoted on the vehicle wall, and the driving part provides driving force for the two to rotate oppositely; the two groups of transmission assemblies are respectively configured corresponding to the rotating shafts of the first roller and the second roller, the first transmission assembly is arranged between the rotating shaft of the first roller and the linkage shaft in a transmission manner, and the second transmission assembly is arranged between the rotating shaft of the second roller and the transmission shaft in a transmission manner; the transmission shaft and the linkage shaft are respectively in one-way transmission connection with the center holes of the corresponding swing blocks through one-way rotating clutch pieces and are configured as follows: when the transmission shaft rotates along the first rotating direction, the first swing block can synchronously rotate to an opening working position from a normal position; when the linkage shaft rotates along a second rotation direction, the second swing block can synchronously rotate to an opening working position from a normal position; the second rotation direction is opposite to the second rotation direction; and the two linkage assemblies are respectively arranged on the corresponding sides in a transmission manner and between the swing block and the roller bracket so as to respectively drive the roller bracket to rotate around the hinged center of the roller bracket.

Preferably, each of the linkage assemblies includes: the lower pull end linkage rod is hinged to the roller side plate on the corresponding side, and the first end of the lower pull end linkage rod is in transmission connection with the bottom of the roller bracket; the first end of the connecting seat is in transmission connection with the second end of the pull-down end linkage rod; the two ends of the closed connecting rod are respectively in transmission connection with the first end of the swinging block and the second end of the connecting seat on the corresponding side; and is configured to: when the swinging block rotates, the connecting seat is pushed through the closing connecting rod, and the connecting seat drives the pull-down end linkage rod to rotate around the hinge center of the pull-down end linkage rod and pushes the roller support to rotate around the hinge center of the roller support, so that a corresponding roller arranged at the top of the roller support is opened; the first elastic piece is pre-deformed and arranged between the pull-down end linkage rod and the corresponding side roller side plate at a normal position and is configured to: when the lower pull end linkage rod rotates around the hinge center of the lower pull end linkage rod, the deformation is changed in a gradually increasing trend so as to provide a reset acting force.

Preferably, the swing block further comprises a limit pull rod, the limit pull rod is arranged between the second ends of the two swing blocks, one end of the limit pull rod is hinged to one of the two swing blocks, the other end of the limit pull rod is in sliding fit with the other swing block through a first long groove and a first pin arranged on the other swing block, and the limit pull rod is configured as follows: when the two swing blocks are located at normal positions, the first pin is located at one end of the first long groove; when the two swing blocks rotate to the opening working positions, the first pin can slide along the first long groove to abut against the other end of the first long groove.

Preferably, the roller support further comprises two groups of opening and closing linkage assemblies which are respectively arranged between the third end of the connecting seat, the roller side plate and the vehicle wall in a transmission mode and are arranged on the corresponding side, so that the roller support on the corresponding side is respectively driven to rotate around the hinged center of the roller support and move in an opening and closing mode of the roller side plate.

Preferably, a pull rod pin extending axially is fixedly arranged at a first end of the swing block, and the swing block is pivoted with a first end of the closing connecting rod on the corresponding side through the pull rod pin; the second end of the connecting seat is provided with a second pin extending axially, the second end of the closed connecting rod is in transmission connection with the second pin at the second end of the connecting seat on the corresponding side through a second long groove, and the closed connecting rod is configured into a structure that: and a preset distance is reserved between the outer side end of the second long groove and the second pin in a normal state.

Preferably, each set of the opening and closing linkage assemblies includes: the movable swing rod is pivoted to the vehicle wall and can swing and switch between a normal position and an open working position relative to the vehicle wall; two ends of the positioning pull rod are respectively hinged with the movable swing rod and the connecting block on the corresponding side, so that the connecting block drives the fixed seat of the roller side plate on the corresponding side to move in an opening and closing manner; the rotating cam is pivoted to the bracket and driven by the rotating control unit; two ends of the movable pull rod are respectively hinged with the first end of the movable swing rod on the corresponding side and the rotating cam; a first end of the closing pull rod is hinged with the movable pull rod on the corresponding side, a second end of the closing pull rod is in transmission connection with the third pin at the third end of the connecting seat on the corresponding side through a third long groove, and the closing pull rod is configured as follows: and a preset distance is reserved between the outer side end of the third long groove and the third pin in a normal state.

Preferably, the method further comprises the following steps: the linkage blocks are respectively hinged with the second ends of the two movable swing rods and are configured to be suitable for the two movable swing rods to respectively rotate from a normal position to an opening working position; a second elastic member, pre-deformed and arranged between the two movable swing rods at the normal position, and configured to: when the two movable swing rods are switched to the opening working position from the normal position, the deformation is changed in a gradually increasing trend so as to provide a reset acting force.

Preferably, each transmission assembly is a belt transmission assembly, a driving wheel of the belt transmission assembly is coaxially fixed with a positioning shaft pivoted to the side plate of the corresponding side roller, and a driven wheel of the belt transmission assembly is coaxially fixed with a rotating shaft of the corresponding side roller; and idler wheels are respectively pivoted on the side plates of the front bed roller and the back bed roller and are matched with the driving belts of the belt driving components on the corresponding sides in a pressing and abutting mode so as to keep working tension.

Preferably, the transmission shaft and the linkage shaft are inserted into the vehicle wall through a motor bracket and are respectively pivoted to the motor bracket in the vehicle wall through a bearing set; the driving part is a motor and provides driving force for the driving part and the driven part to rotate oppositely through a driving gear and a driven gear which are meshed with each other, wherein the driving gear is coaxially fixed with the shaft end of the transmission shaft, which is positioned on the outer side of the car wall, and the driven gear is coaxially fixed with the shaft end of the linkage shaft, which is positioned on the outer side of the car wall; the transmission shaft and the shaft end of the linkage shaft, which is positioned on the inner side of the car wall, are in transmission connection with the positioning shaft on the corresponding side through a coupler respectively.

The utility model also provides a flat knitting machine, including last roller, still include as before last roller mechanism that opens and shuts.

To roller on the computer flat knitting machine, the utility model discloses the synchronism that opens and shuts to last roller has provided the improvement optimization, specifically, adopts transmission shaft and universal driving shaft to provide drive power respectively to respectively with the corresponding roller that sets up of preceding, back needle bed to two pendulum blocks that utilize the looks adaptation construct the drive transmission route of opening first, two rollers in opposite directions with the linkage subassembly. Compared with the prior art, the utility model discloses following beneficial technological effect has:

firstly, the scheme is that the same driving part provides power, the transmission shaft and the linkage shaft have the functions of roller rotation transmission and roller opening, and based on the configuration of the unidirectional rotation clutch piece, the swinging block drives the two roller supports to rotate oppositely through the corresponding side linkage assemblies when rotating synchronously, so as to drive the first roller and the second roller at the top of the swinging block to be opened synchronously, thereby providing good technical guarantee for ensuring the opening and closing synchronism of the upper rollers.

Second, the utility model discloses an in the preferred scheme, add two sets of linkage subassemblies that open and shut, the transmission sets up between the connecting seat of corresponding side, roller curb plate and car wall respectively to drive the displacement that opens and shuts of preceding, back bed roller curb plate of corresponding side respectively. So set up, can effectively increase the distance that opens and shuts between the top roller through opening the roller curb plate to operating parts such as start-up board pass through, thereby effectively improved computer flat knitting machine's practicality. Meanwhile, the flat knitting machine can be maintained conveniently by controlling the position of the needle rake.

Third, in the utility model discloses an among another preferred scheme, its pendulum piece promotes the connecting seat through the closed connecting rod of corresponding side to drive the roller support and open the rotation, this closed connecting rod is connected through the second round pin transmission of second elongated slot and corresponding side connecting seat, and the configuration is: a preset distance is reserved between the outer side end of the second long groove and the second pin in a normal state. Based on the redundancy arrangement of the preset distance, when the opening and closing linkage assembly is executed, the roller support is driven to rotate around the hinged center of the roller support and the opening and closing displacement of the roller side plate is carried out, the second pin displaced along with the connecting seat can slide outwards in the second long groove, and the closing connecting rod and the connecting seat are not in actuation association at the moment, so that the connecting seat and the closing connecting rod and the transmission isolation between the connecting seat and the upstream side component of the closing connecting rod can be formed when the opening and closing linkage assembly further drives the upper roller to be opened. Has better adaptability.

Fourthly, in another preferred aspect of the present invention, a third elongated slot is provided at the end of the closed pull rod of the opening and closing linkage assembly and the connecting seat, and is adapted to the third pin on the connecting seat through the third elongated slot, and configured as: and a preset distance is reserved between the outer side end of the third long groove and the third pin in a normal state. Based on the redundancy arrangement of the preset distance, when the linkage assembly is executed, the swinging block synchronously rotates along with the shaft, and when the connecting seat is pushed to move through the closed connecting rod so as to drive the roller to be opened, the third pin moving along with the connecting seat can slide outwards in the third long groove, and the connecting seat is in no action association with the closed pull rod, the movable swing rod and the movable pull rod, so that when the linkage assembly acts, the transmission isolation between the connecting seat and the closed pull rod and the upstream side member of the closed pull rod is formed. Has better adaptability.

Drawings

FIG. 1 is a schematic view of the assembly of the roller opening and closing mechanism in the embodiment;

FIG. 2 is a schematic illustration of an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the linkage assembly in accordance with an exemplary embodiment;

FIG. 4 is a schematic structural view of the top roller portion in accordance with an embodiment;

FIG. 5 is another schematic exploded view of FIG. 1;

FIG. 6 is a schematic diagram of the linkage assembly and the opening/closing linkage assembly according to the embodiment.

In the figure:

the automatic lathe comprises a lathe wall 1, a motor seat 2, a motor bracket 3, a linkage shaft 4, a driven gear 5, a driving part 6, a transmission shaft 7, a driving gear 8, a front bed roller side plate 9, a rear bed roller side plate 10, a first bearing group 40, a second swing block 41, a first coupler 42, a first linkage component 43, a first positioning shaft 44, a first belt transmission component 45, a first belt wheel bearing seat 46, a unidirectional rotation clutch component 47, a first opening and closing linkage component 430, a front fixing seat 90, a first roller 91, a spring hanging pin 92, a first idle wheel 93, a second roller 101, a first bearing group 70, a first swing block 71, a second coupler 72, a second linkage component 73, a second positioning shaft 74, a second belt transmission component 75, a second belt wheel bearing seat 76, a first pin 77, a closing connecting rod 710, a first long groove 711, a second long groove 712, a pull rod pin 713, a limiting pull rod 714, a connecting seat 715, a second pin 716, a connecting seat, The roller mechanism comprises a lower pulling end linkage rod 717, a roller support 718, a first elastic part 719, a vertical long groove 720, a second opening and closing linkage assembly 730, a bracket 7300, a rotation control unit 7301, a synchronizing shaft 7302, a moving pull rod 7303, a movable swing rod 7304, a closing pull rod 7305, a second elastic part 7306, a rotating cam 7307, a linkage block 7308, a positioning pull rod 7309, a connecting block 7310, a third long groove 7311, a third pin 7312, an upper roller body 910, a rotating shaft 911, a driven wheel 912, a roller fixing shaft 913, a rear fixing seat 100 and a second idle wheel 102.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Without loss of generality, the embodiment takes the upper roller shown in the figure as a description main body, and the roller opening and closing mechanism scheme is explained in detail, and the two rollers respectively rotate oppositely through rotating shafts 911 arranged in the rollers in a penetrating mode, so that the fabric pulling function is realized. It should be understood that the structure of the engagement between the outer surfaces of the top roller body 910 shown in fig. 4 is not central to the present application and does not substantially limit the roller opening and closing mechanism claimed in the present application.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of an assembly relationship of the top roller opening and closing mechanism in the present embodiment, and fig. 2 is a schematic view of an exploded structure of fig. 1. In order to clearly show the main functional structure and the relative position relationship of the scheme, only the related structure at one shaft end side of the roller is shown in the figure, and the structure is formed after the vehicle wall group is removed in the figure 1.

It should be noted that, the terms "first" and "second" are used herein to define the same functional components or structures, so as to clearly show the dynamic matching relationship of the whole machine. For example, but not limited to, the first roller 91 is a top roller provided corresponding to the front needle bed, the second roller 101 is a back roller provided corresponding to the back needle bed, and among the same functional components, the first roller 91 is defined as the "first" and the second roller 101 is defined as the "second".

In addition, the directional terms "front" and "rear" are defined in a normal use manner of the flat knitting machine, that is, a far side perpendicular to the direction of the roller axis as viewed in the drawing is a front side, and the rear is a rear side. It is to be understood that the terms "first," "second," and "front," "rear," etc. do not denote any essential limitations on the corresponding functional components or structures.

The roller opening and closing mechanism is used for an upper roller arranged between a vehicle wall 1 group (only one side of the vehicle wall is not shown in the figure), wherein a rotating shaft which coaxially rotates penetrates through a first roller 91 and a second roller 101 and is respectively pivoted to the top of a corresponding side roller bracket 718, the roller bracket 718 is respectively hinged to a roller fixing shaft 913 together with a front bed roller side plate 9 (a back bed roller side plate 10) so as to rotate oppositely under the driving of a corresponding side transmission component, and the pulling of the fabric during weaving is completed through a meshing structure matched between the outer surfaces of the two. Meanwhile, the opening operation of the upper roller relative to the roller side plate can be realized under the driving of the roller bracket 718.

As shown in the drawing, the driving member 6 is provided on one side wall 1, and the driving member 6 as a power source is preferably a motor which can be mounted on the motor base 2 provided on the wall 1, thereby improving the stability of the motor mounting structure. Specifically, the roller is output to the corresponding roller rotating shaft through the transmission shaft 7, the linkage shaft 4 and two groups of correspondingly arranged transmission assemblies respectively.

Wherein, the transmission shaft 7 and the linkage shaft 4 are respectively pivoted on the side car wall 1, and the driving part 6 provides the driving force for the opposite rotation of the transmission shaft and the linkage shaft; as shown in fig. 2, the transmission shaft 7 and the linkage shaft 4 are inserted into the vehicle wall 1 through the motor bracket 3, and are respectively pivoted to the motor bracket 3 through the first bearing set 40 and the second bearing set 70, that is, can respectively pivot relative to the vehicle wall 1; the driving part 6 provides driving force for the driving part and the driven part to rotate oppositely through a driving gear 8 and a driven gear 5 which are meshed with each other, wherein the driving gear 8 is coaxially fixed with the shaft end of the transmission shaft 7, which is positioned on the outer side of the car wall 1, and the driven gear 5 is coaxially fixed with the shaft end of the linkage shaft 4, which is positioned on the outer side of the car wall 1; correspondingly, the shaft ends of the transmission shaft 7 and the linkage shaft 4, which are located on the inner side of the car wall 1, are in transmission connection with the positioning shafts (74, 44) on the corresponding sides through couplers (72, 42), respectively, as shown in the figure, the transmission shaft 7 is connected with the second positioning shaft 74 through the second coupler 72, and the linkage shaft 4 is connected with the first positioning shaft 44 through the first coupler 42. Here, the second positioning shaft 74 is connected to a first pulley bearing seat 46 provided coaxially with the first belt drive unit 45, and the first positioning shaft 44 is connected to a second pulley bearing seat 76 provided coaxially with the second belt drive unit 75.

Wherein, two sets of transmission components are respectively configured corresponding to the rotating shafts of the first roller 91 and the second roller 101, and preferably, the transmission components adopt belt transmission components. Referring also to fig. 3, a schematic diagram of the linkage assembly is shown. The first belt transmission component 45 is arranged between the rotating shaft of the first roller 91 and the linkage shaft 4 in a transmission way, and the second belt transmission component 75 is arranged between the rotating shaft of the second roller 101 and the transmission shaft 7 in a transmission way; the driving wheel of each belt transmission component is coaxially fixed with the positioning shafts (74, 44) pivoted on the side plates of the corresponding side roller, and the driven wheel 912 is coaxially fixed with the rotating shaft of the corresponding side roller as shown in figure 4, so that the power transmitted by the transmission shaft 7 and the linkage shaft 4 is respectively output to the two rollers to realize the pulling of the fabric.

Of course, in order to maintain the operating tension of the belt drive assembly, idler wheels may be pivotally mounted on the front bed roller side plate 9 and the back bed roller side plate 10: a first idler 93 and a second idler 102, each idler (93, 102) being in pressing fit with the drive belt of a respective side belt drive assembly (45, 75). The first idler pulley 93 is adapted to the belt of the first belt drive assembly 45 and the second idler pulley 102 is adapted to the belt of the second belt drive assembly 75 to maintain the working tension to ensure the normal operation of the roller, while the other side can avoid the interference of the belt with other components.

Wherein, two pendulum blocks (41, 71) are respectively sleeved on the transmission shaft 7 and the universal driving shaft 4, the second pendulum block 41 and the first pendulum block 71 are respectively in one-way transmission connection with the central hole of the corresponding pendulum block through a one-way rotation clutch 47, and are configured as follows: when the transmission shaft 7 rotates along the first rotation direction (counterclockwise direction), the second swing block 41 can synchronously rotate from the normal position to the open working position, and when the transmission shaft 7 rotates along the second rotation direction (clockwise direction), the second swing block 41 keeps still; when the linkage shaft 4 rotates in the second rotation direction (clockwise direction), the first swing block 71 can synchronously rotate from the normal position to the open working position, and similarly, when the linkage shaft 4 rotates in the first rotation direction (counterclockwise direction), the first swing block 71 is kept still. In this embodiment, the one-way rotating clutch 310 may be a one-way bearing or a one-way clutch.

Here, the "normal position" of the swing block refers to the working posture of the swing block under the working condition that the roller pulls the fabric; the opening working position of the swinging block refers to the working posture of the swinging block under the opening working condition of the roller relative to the roller side plate.

Wherein, two linkage assemblies (43, 73) are respectively arranged between the corresponding side swing block and the roller bracket 718 in a transmission way so as to respectively drive the roller bracket 718 to rotate around the hinge center. As shown, the first linkage assembly 43 is drivingly disposed between the first swing block 71 and the front roller support 718, and the second linkage assembly 73 is drivingly disposed between the second swing block 41 and the rear roller support 718.

In the scheme, the driving force is output to the first roller 91 and the second roller 101 by the transmission shaft 7 and the linkage shaft 4 respectively, and the driving transmission paths for opening the first roller and the second roller oppositely are constructed by the two adaptive swing blocks (71 and 41) and the linkage assemblies (43 and 73). Meanwhile, the transmission shaft 7 and the linkage shaft 4 are used for constructing a driving transmission path with a roller opening function, and based on the configuration of the unidirectional rotation clutch piece 47, the swinging block drives the two roller supports 718 to rotate oppositely through the corresponding side linkage assembly when rotating synchronously, so that the first roller 91 and the second roller 101 at the top of the swinging block are driven to open synchronously, and the flexibility of roller adjustment is improved; thus, the rollers provided corresponding to the front and rear needle beds are ensured to operate synchronously.

It will be appreciated that the linkage assembly described above may perform the respective transmission functions in different ways, such as, but not limited to, the preferred exemplary embodiment shown in the figures. As shown, each linkage assembly (43, 73) includes a pull-down end linkage rod 717, a connecting seat 715, a closing connecting rod 710, and a first resilient member 719; based on the feature that the principle of the transmission on both sides is consistent, the transmission structure adapted to the second roller 101 will be described in detail below.

Referring to fig. 2 and 5 together, fig. 5 is another exploded view of fig. 1. Wherein, the linkage rod 717 at the lower pull end is hinged with the roller side plate at the corresponding side, and the linkage rod 717 and the roller side plate are hinged with a hinged point A. The first end of the pull-down end linkage rod 717 is in transmission connection with the bottom of the roller bracket 718; the connecting seat 715 is hinged with the roller side plate 10 on the corresponding side, and a first end of the connecting seat 715 is in transmission connection with a second end of the pull-down end linkage rod 717; referring to fig. 6, a schematic diagram of the action relationship between the linkage assembly and the opening and closing linkage assembly is shown. The top roller shown in fig. 6 is in an open state by the first linkage assembly 43 and the second linkage assembly 73.

As shown in the figure, two ends of the closing connecting rod 710 are respectively in transmission connection with a first end (lower end) of the second swing block 41 and a second end of the connecting seat 715 on the corresponding side; and is configured to: when the second swing block 71(41) rotates, the connecting seat 715 is pushed to the rear side by closing the connecting rod 710, and the connecting seat 715 drives the pull-down end linkage rod 717 to rotate around the hinge center a thereof, and pushes the roller bracket 718 to rotate around the hinge center (the roller fixing shaft 913) thereof, so that the second roller 101 correspondingly arranged on the top thereof is opened. It should be understood that the pushing direction of the closing connecting rod 710 is not limited to the pushing to the rear side, and the pushing to the front side can be adopted based on different implementation manners of the linkage assembly, and it is within the scope of the present application as long as the function requirement of the top roller opening is satisfied.

It should be noted that the term "first end" and "second end" as used herein are mainly used to distinguish different transmission connection positions of corresponding components, so as to clearly illustrate a specific transmission connection relationship, and do not refer to a physical end position of the component.

In addition, the upper end of the pull-down end linkage rod 717 is provided with a vertical long groove 720, the pull-down end linkage rod is connected and limited on the front bed roller side plate 9 through an adaptive shaft pin, so that the pull-down end linkage shaft 4 is limited within the length range of the vertical long groove 720 when acting, the shaft center is prevented from being deviated when the pull-down end linkage shaft 4 is matched with the roller support 718 to be linked during linkage, and the action rationality of the linkage assembly is ensured.

Meanwhile, a first elastic part 719 is arranged between the lower pulling end linkage rod 717 and the corresponding side roller side plate (10, 9), as shown in fig. 3, the first elastic part 719 is pre-deformed and arranged between the lower pulling end linkage rod 717 and the corresponding side roller side plate 10 at a normal position, the meshing tightness between the first roller 91 and the second roller 101 is further improved, and the fabric traction effect is improved; and is configured to: when the link rod 717 rotates around its hinge center, its deformation gradually increases to store elastic deformation energy, so as to provide a restoring force. Preferably, the first elastic member 719 can adopt a tension spring structure, and the front bed roller side plate 9(10) at one end is provided with a spring hanging pin 92 for positioning the first elastic member 719, so that one end of the first elastic member 719 is conveniently connected with the spring hanging pin 92, and the other end is hooked with the pull-down end linkage rod 717.

As previously described, the first swing block 71 swings in the reverse direction and transmits power to the roller holder connected to the first roller 91, based on the same transmission principle. In order to better control the opening range of the two swing blocks, a limit rod 714 may be further added between the second ends of the two swing blocks, as shown in fig. 2 and fig. 5, one end of the limit rod 714 is hinged to the second swing block 41, and the other end is in sliding fit with the first pin 77 arranged on the first swing block 71 through the first long slot 711, and is configured to: when the two swing blocks (41, 71) are positioned at the normal position, the first pin 77 is positioned at one end of the first long groove 711; when the two swing blocks (41, 71) rotate to the open working position shown in fig. 6, the first pin 77 can slide along the first long groove 711 to abut against the other end of the groove, so that the relative position of the second swing block 41 and the first swing block 71 can be effectively limited.

That is, when the driving member 6 rotates reversely, the second swing block 41 and the first swing block 71 start to move synchronously, and the first pin 77 moves in the first long groove 711, so that the two keep a relatively constant state, and the rationality of the opening and closing mechanism is improved. Of course, the first elongated slot can be reversely configured to fit with the second swing block 41 (not shown in the figures), and the other end of the limiting pull rod 714 is hinged with the first swing block 71, so that the limiting function can be achieved.

In order to further increase the opening degree of the upper roller so as to facilitate the operation of the bottom lifting plate, etc., the opening and closing functions of the side plates of the front bed and the back bed can be added. Still include two sets of linkage subassemblies that open and shut: the first opening and closing linkage assembly 430 and the second opening and closing linkage assembly 730 are respectively arranged between the third end of the connecting seat 715 on the corresponding side, the roller side plates (9 and 10) and the vehicle wall 1 in a transmission manner so as to respectively drive the opening and closing displacement of the roller side plates (9 and 10) on the corresponding sides. So set up, effectively increase the distance that opens and shuts between the top roller through opening the roller curb plate to operating parts such as rising bottom plate pass through, can further increase the distance that opens and shuts on the whole.

Normally, the front fixing seat 90 is connected to the outer side of the front bed roller side plate 9, and the rear fixing seat 100 is connected to the outer side of the rear bed roller side plate 10. On this basis, this scheme, the accessible two sets of linkage subassemblies that open and shut respectively through the displacement that opens and shuts of preceding fixing base 90 and back fixing base 100, further increase the distance that opens and shuts between the top roller.

Specifically, the transmission connection between the two ends of the closing connecting rod 710 and the second ends of the second swing block 41 and the corresponding side connecting seat 715 can also be realized by adopting different structural manners. For example, but not limited to, as shown in the figures, a pull rod pin 713 is fixedly disposed at a first end of the second swing block 41 and pivotally connected to a first end (front end) of the closing link 710 on the corresponding side through the pull rod pin 713; a second pin 716 extending axially is provided at the second end of the connecting seat 715, and the second end (rear end) of the closing connecting rod 710 is in driving connection with the second pin 716 of the second end of the corresponding connecting seat 715 through a second long slot 712, and is configured to: the outer end of the second elongated slot 712 is normally spaced a predetermined distance from the second pin 716. Based on the redundancy of the preset distance, when the opening and closing linkage assembly is executed, the second pin 716 (from the position in the groove shown in fig. 6) displaced along with the connecting seat 715 can slide outwards relative to the second long groove 712 in the process of driving the roller support 718 to rotate around the hinge center and the opening and closing displacement of the roller side plate, and at the moment, no action association exists between the closing connecting rod 710 and the connecting seat 715, so that when the opening and closing linkage assembly further drives the upper roller to open, transmission isolation between the connecting seat 715 and the closing connecting rod 710 and the upstream side component thereof is formed.

It will be appreciated that the opening and closing linkage assembly described above may be used in different ways to achieve the corresponding opening and closing transmission function, such as, but not limited to, the preferred exemplary embodiment shown in the figures. As shown, each opening and closing linkage assembly (430, 730) includes: a movable swing lever 7304, a positioning pull rod 7309, a rotating cam 7307, a moving pull rod 7303, and a closing pull rod (7305). Based on the feature that the principle of the transmission on both sides is consistent, the transmission structure adapted to the second roller 101 will be described in detail below.

As shown in fig. 1 and 6, the movable swinging rod 7304 is pivoted to the vehicle wall 1 (not shown) and can swing around its pivoting center B. And is configured to be able to swing with respect to the wall 1 to switch between a normal position and an open operating position; the connecting block 7310 is fixedly arranged on the outer side of the rear fixing seat 100, two ends of the positioning pull rod 7309 are respectively hinged with the movable swing rod 7304 on the corresponding side and the connecting block 7310, and when the movable swing rod 7304 swings to an opening working position relative to the pivoting center, the fixing seat of the side roller side plate on the corresponding side can be driven to move in an opening and closing manner through the connecting block 7310. Therefore, the rake in the front fixed seat 90 and the rake in the rear fixed seat 100 are synchronously separated by a distance, so that the situation of interference when the lifting plate passes through the channel is avoided, and the separation distance between the first roller 91 and the second roller 101 can be further increased.

Wherein, the rotating cam 7307 is pivoted to a bracket 7310, and the bracket 7310 can be fixed on the vehicle wall 1; and the rotation cam 7307 is controlled to be driven by the rotation control unit 7301; two ends of the movable pull rod 7303 are hinged with the first end of the corresponding side movable swing rod 7304 and the rotating cam 7307 respectively; a first end (rear end) of the closing pull rod 7305 is hinged to the corresponding side moving pull rod 7303, and a second end (front end) is in transmission connection with a third pin 7312 at a third end of the corresponding side connecting seat 715 through a third long groove 7311, and is configured as follows: the outer end of the third long groove 7311 in a normal state has a predetermined distance from the third pin 7312. Preferably, the moving pull rod 7303, the movable swing rod 7304 and the closing pull rod 7305 are hinged to the same hinge point C. Based on the redundancy arrangement of the preset distance, when the linkage assembly is executed, the second swing block 41 rotates along with the shaft synchronously, and pushes the connecting seat 715 to displace through the closing connecting rod 710 so as to drive the roller to open, the third pin 7312 displaced along with the connecting seat 715 can slide outwards in the third long groove 7311 to the position shown in fig. 6, and at this time, the connecting seat 715 is not in actuating association with the closing pull rod 7305, the movable swing rod 7304 and the moving pull rod 7303, so that when the linkage assembly acts, transmission isolation between the connecting seat 715 and the closing pull rod 7305 and the upstream side component thereof is formed, and the linkage assembly has good adaptability.

Two sets of linkage assemblies (43, 73) and opening and closing linkage assemblies (430, 730) are respectively arranged at the two side shaft ends of the upper roller, and the opening and closing actions are synchronously carried out from the two ends of the upper roller. For the opening and closing linkage assemblies (430, 730), the rotation control unit 7301 at one side is synchronously linked with the opening and closing linkage assembly at the other side through the synchronous shaft 7302 which is connected in a matching way, and respectively pulls the front fixing seat 90 and the rear fixing seat 100.

Furthermore, the magnetic steel component (not shown in the figure) is sleeved outside the synchronizing shaft 7302, and the magnetic steel component induces the highest point and the lowest point of the movement of the moving cam 7307 in cooperation with the moving pull rod 7303, so that the initial movement of the rotation control unit 7301 can be effectively identified when the magnetic steel component is started, and the control precision of the opening and closing linkage component can be accurately improved.

In order to obtain good stability of the opening and closing operation, it is further preferable that a link block 7308 is hinged between the two movable swing rods 7304, and configured to: the two movable swing rods 7304 are adapted to rotate from a normal position to an open working position respectively; meanwhile, a second elastic member 7306 is disposed between the two movable swinging rods 7304, and is pre-deformed at a normal position to maintain a relative position relationship between the two, and is specifically configured as follows: when the two movable swinging rods 7304 are swung from the normal position to the open working position, the deformation of the two movable swinging rods 7304 changes in a gradually increasing trend to store elastic deformation energy so as to provide a reset acting force.

In this embodiment, the second coupling 72 and the first coupling 42 are single oldham coupling, and the single oldham coupling may also be a universal coupling.

The following briefly describes the specific operation of the roller opening and closing mechanism of the present embodiment:

first, normal operation mode.

When the upper roller draws the fabric, the motor 6 is controlled to rotate forward. The driving gear 8 rotates forwards synchronously, the driven gear 5 rotates backwards, correspondingly, the driving gear respectively drives the transmission shaft 7 to rotate forwards synchronously, and the linkage shaft 4 rotates backwards synchronously. Meanwhile, the first belt transmission assembly 45 and the second belt transmission assembly 75 respectively drive the first roller 91 and the second roller 101 to rotate oppositely, and the first roller 91 and the second roller 101 are tightly matched based on the pre-deformation action of the first elastic part 719, so that the traction force of the upper roller on the fabric is kept.

In the normal operation mode, the first and second swing blocks 71 and 41 are stationary based on the arrangement of the one-way rotation clutch 47.

And secondly, the linkage assembly acts to open the upper roller.

When the upper roller needs to be opened, the control motor (6) reversely rotates. The driving gear 8 rotates reversely synchronously, the driven gear 5 rotates forwardly, correspondingly, based on the arrangement of the unidirectional rotation clutch piece 47, the second swing block 41 rotates forwardly along with the linkage shaft 4, the pull rod pin 713 pushes the closing connecting rod 710 to move backwards, meanwhile, the closing connecting rod 710 pushes the second pin 716 on the connecting seat 715, the connecting seat 715 is matched with the closing connecting rod 710 to move backwards (close to the position of the backward fixing seat 100), and pushes the pull-down end linkage rod 717 to rotate anticlockwise by taking the shaft pin A connected with the roller side plate as a rotation axis, so that the top of the pull-down end linkage rod 717 pushes the bottom of the roller support 718 to move forwards (close to the position of the forward fixing seat 90), the roller support 718 rotates clockwise by taking the roller fixing shaft 913 as a rotation axis, and the second roller 101 is pulled backwards through the second linkage assembly 73.

Similarly, the first swing block 71 rotates reversely with the transmission shaft 7 and pulls the first roller 91 forward through the first linkage assembly 43, thereby opening the passage between the first roller 91 and the second roller 101.

The first roller 91 and the second roller 101 in this state deal with the idle state at the time of the top roller opening operation. In addition, based on the third long groove 7311 on the closing pull rod 7305, the formed connecting seat 715 is isolated from the transmission between the closing pull rod 7305 and the upstream side component thereof, and the closing pull rod 7305 and the opening and closing linkage component on the upstream side thereof are stationary and do not act during the action of opening the upper roller through the action of the linkage component.

And thirdly, opening the opening and closing linkage assembly.

When the opening and closing linkage assembly is started, firstly, the rotation control unit 7301 rotates, and when the rotation cam 7307 rotates from the lowest point to the highest point, the movable pull rod 7303 is pulled to displace backwards, the movable swing rod 7304 rotates anticlockwise around the rotation center B thereof, and pushes the positioning pull rod 7309 backwards, so that the connecting block 7310 drives the rear fixing seat 100 to displace backwards, and the second roller 101 is driven to further displace backwards. Thereby, the opening operation of the rear fixing base 100 is realized by the second opening and closing linkage assembly 730, and the backward pulling of the second roller 101 is realized via the second linkage assembly 73. Meanwhile, when the movable pull rod 7303 is pulled backwards, the third long groove 7311 arranged at the front end of the closing pull rod 7305 pulls the third pin 7312, the lower pull end linkage rod 717 is pushed by the connecting seat 715 to rotate counterclockwise by taking the shaft pin A connected with the roller side plate as a rotating shaft center, so that the top of the lower pull end linkage rod 717 pushes the bottom of the roller bracket 718 to displace forwards, and the second roller 101 is pulled backwards through the second linkage component 73 synchronously.

Similarly, the first roller 91 realizes the forward displacement of the front fixing seat 90 through the first opening and closing linkage assembly 430 on the corresponding side, and realizes the forward pulling of the first roller 91 through the first linkage assembly 43, so that the needle rake is opened, and simultaneously, the first roller 91 and the second roller 101 can also be opened synchronously.

In the working mode of the opening and closing linkage assembly, based on the second long groove 712 on the closing connecting rod 710, the formed connecting seat 715 is isolated from the transmission between the closing connecting rod 710 and the upstream side member thereof, and the closing connecting rod 710 and the linkage assembly on the upstream side thereof are static and do not move in the action process of opening the roller side plate fixing seat and opening the upper roller through the action of the opening and closing linkage assembly. That is, the linkage assembly may be selected to be deactivated at this time. When bad conditions such as cloth clamping need to be started, the control motor (6) rotates reversely, the first roller 91 and the second roller 101 can be further driven to be further opened relative to the roller side plate through the linkage assembly, and therefore the opening and closing distance between the first roller 91 and the second roller 101 is further increased, and the device has good adaptability.

In addition to the roller opening and closing mechanism, the present embodiment provides a flat knitting machine including a top roller and the roller opening and closing mechanism. Here, other functions of the flat knitting machine are not the core invention of the present application, and those skilled in the art can realize the functions based on the prior art, so that the detailed description is omitted herein.

In particular, the roller opening and closing mechanism provided in the present embodiment is not limited to the application to the top roller of the flat knitting machine, and it is to be understood that the roller opening and closing mechanism can also be applied to opening and closing control of the bottom roller, and it is within the scope of the present application as long as the core inventive concept of the present application is applied.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims (10)

1. Roller mechanism that opens and shuts for arrange the roller between the car wall group in, the first roller of looks adaptation and second roller pin joint respectively in with preceding, back bed roller curb plate articulated roller support top, its characterized in that still includes:

the driving part is arranged on one side of the vehicle wall;

the transmission shaft and the linkage shaft are respectively pivoted on the vehicle wall, and the driving part provides driving force for the two to rotate oppositely;

the two groups of transmission assemblies are respectively configured corresponding to the rotating shafts of the first roller and the second roller, the first transmission assembly is arranged between the rotating shaft of the first roller and the linkage shaft in a transmission manner, and the second transmission assembly is arranged between the rotating shaft of the second roller and the transmission shaft in a transmission manner;

the transmission shaft and the linkage shaft are respectively in one-way transmission connection with the center holes of the corresponding swing blocks through one-way rotating clutch pieces and are configured as follows: when the transmission shaft rotates along the first rotating direction, the first swing block can synchronously rotate to an opening working position from a normal position; when the linkage shaft rotates along a second rotation direction, the second swing block can synchronously rotate to an opening working position from a normal position; the second rotation direction is opposite to the second rotation direction;

and the two linkage assemblies are respectively arranged on the corresponding sides in a transmission manner and between the swing block and the roller bracket so as to respectively drive the roller bracket to rotate around the hinged center of the roller bracket.

2. The roller opening and closing mechanism of claim 1, wherein each linkage assembly comprises:

the lower pull end linkage rod is hinged to the roller side plate on the corresponding side, and the first end of the lower pull end linkage rod is in transmission connection with the bottom of the roller bracket;

the first end of the connecting seat is in transmission connection with the second end of the pull-down end linkage rod;

the two ends of the closed connecting rod are respectively in transmission connection with the first end of the swinging block and the second end of the connecting seat on the corresponding side; and is configured to: when the swinging block rotates, the connecting seat is pushed through the closing connecting rod, and the connecting seat drives the pull-down end linkage rod to rotate around the hinge center of the pull-down end linkage rod and pushes the roller support to rotate around the hinge center of the roller support, so that a corresponding roller arranged at the top of the roller support is opened;

the first elastic piece is pre-deformed and arranged between the pull-down end linkage rod and the corresponding side roller side plate at a normal position and is configured to: when the lower pull end linkage rod rotates around the hinge center of the lower pull end linkage rod, the deformation is changed in a gradually increasing trend so as to provide a reset acting force.

3. The roller opening and closing mechanism according to claim 2, further comprising a limit pull rod, wherein the limit pull rod is arranged between the second ends of the two swing blocks, one end of the limit pull rod is hinged with one of the two swing blocks, the other end of the limit pull rod is in sliding fit with the other swing block through a first long groove, and the limit pull rod is configured to be: when the two swing blocks are located at normal positions, the first pin is located at one end of the first long groove; when the two swing blocks rotate to the opening working positions, the first pin can slide along the first long groove to abut against the other end of the first long groove.

4. The roller opening and closing mechanism according to claim 3, further comprising two sets of opening and closing linkage assemblies respectively arranged between the third end of the connecting seat on the corresponding side, the roller side plate and the vehicle wall in a transmission manner so as to respectively drive the roller support on the corresponding side to rotate around the hinge center of the roller support and drive the roller side plate to open and close.

5. The roller opening and closing mechanism according to claim 3, wherein a pull rod pin extending axially is fixedly arranged at a first end of the swing block, and the swing block is pivoted with a first end of the closing connecting rod on the corresponding side through the pull rod pin; the second end of the connecting seat is provided with a second pin extending axially, the second end of the closed connecting rod is in transmission connection with the second pin at the second end of the connecting seat on the corresponding side through a second long groove, and the closed connecting rod is configured into a structure that: and a preset distance is reserved between the outer side end of the second long groove and the second pin in a normal state.

6. The roller opening and closing mechanism according to claim 4, wherein each set of opening and closing linkage components comprises:

the movable swing rod is pivoted to the vehicle wall and can swing and switch between a normal position and an open working position relative to the vehicle wall;

two ends of the positioning pull rod are respectively hinged with the movable swing rod and the connecting block on the corresponding side, so that the connecting block drives the fixed seat of the roller side plate on the corresponding side to move in an opening and closing manner;

the rotating cam is pivoted to the bracket and driven by the rotating control unit;

two ends of the movable pull rod are respectively hinged with the first end of the movable swing rod on the corresponding side and the rotating cam;

a first end of the closing pull rod is hinged with the movable pull rod on the corresponding side, a second end of the closing pull rod is in transmission connection with a third pin at a third end of the connecting seat on the corresponding side through a third long groove, and the closing pull rod is configured as follows: and a preset distance is reserved between the outer side end of the third long groove and the third pin in a normal state.

7. The roller opening and closing mechanism according to claim 6, further comprising:

the linkage blocks are respectively hinged with the second ends of the two movable swing rods and are configured to be suitable for the two movable swing rods to respectively rotate from a normal position to an opening working position;

a second elastic member, pre-deformed and arranged between the two movable swing rods at the normal position, and configured to: when the two movable swing rods are switched to the opening working position from the normal position, the deformation is changed in a gradually increasing trend so as to provide a reset acting force.

8. The roller opening and closing mechanism according to claim 7, wherein each transmission assembly is a belt transmission assembly, a driving wheel of the belt transmission assembly is coaxially fixed with a positioning shaft pivoted to the side plate of the corresponding side roller, and a driven wheel of the belt transmission assembly is coaxially fixed with a rotating shaft of the corresponding side roller; and idler wheels are respectively pivoted on the side plates of the front bed roller and the back bed roller and are matched with the driving belts of the belt driving components on the corresponding sides in a pressing and abutting mode so as to keep working tension.

9. The roller opening and closing mechanism according to claim 8, wherein the transmission shaft and the linkage shaft are inserted into the vehicle wall through a motor bracket and are respectively pivoted to the motor bracket in the vehicle wall through a bearing set; the driving part is a motor and provides driving force for the driving part and the driven part to rotate oppositely through a driving gear and a driven gear which are meshed with each other, wherein the driving gear is coaxially fixed with the shaft end of the transmission shaft, which is positioned on the outer side of the car wall, and the driven gear is coaxially fixed with the shaft end of the linkage shaft, which is positioned on the outer side of the car wall; and the shaft ends of the transmission shaft and the linkage shaft, which are positioned on the inner side of the car wall, are connected with the positioning shafts on the corresponding sides through couplers respectively.

10. A flat knitting machine comprising a top roller, wherein the roller opening and closing mechanism of the top roller is the roller opening and closing mechanism according to any one of claims 1 to 9.

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