CN213266811U - Tow clamping and cutting device - Google Patents

Abstract

The utility model provides a silk bundle centre gripping cutting device, it includes: the displacement mechanism comprises a first frame body, a second frame body and a third frame body. The second frame body is slidably arranged on the first frame body, and the third frame body is slidably arranged on the second frame body. And the clamping device comprises a connecting frame connected with the third frame body, a fixed plate connected with the connecting frame, a movable plate hinged with the connecting frame and a first air cylinder. The first cylinder is used for driving the movable plate to rotate. And the cutting device comprises a linear driving device, a swing rod, a circular knife driving motor, a circular knife and a second air cylinder which are arranged on the third frame body. One end of the swing rod is hinged with the movable part of the linear driving device, the circular knife driving motor is arranged on the swing rod, and the circular knife is in transmission connection with the circular knife driving motor. The whole process does not need manual operation, reduces labor cost, reduces labor intensity, improves spinning production efficiency, avoids the problem that tows are wound on the arms of workers, and avoids safety accidents.

Description

Tow clamping and cutting device

Technical Field

The utility model relates to a spinning processing technology field, more specifically say, relate to a silk bundle centre gripping cutting device.

Background

In the existing spinning production process, the following two problems generally exist. Firstly, because the filament bundle 21 contains impurities, glue blocks, messy filaments and other defects, which can seriously affect the product quality, enterprises usually set up manual defect detection and removal stations, as shown in fig. 1, the filament bundle 21 is wound on a roller 22, the roller 22 rotates and simultaneously enables the filament bundle 21 to enter a filament cutter 23 for chopping, in the transmission process of the filament bundle 21, an inspection worker observes the defects and notifies a cutting worker, the cutting worker receives the notification and then reaches the vicinity of the feed end of the roller 22, grasps the filament bundle 21 and cuts the defective segment and the filament bundle 21, rapidly winds the filament bundle 21 with the cut defects on the roller 22, and meanwhile, the inspection worker lifts the defective segment at the filament cutter 23 to be convenient for the cutting worker to put the filament bundle 21 into the inlet of the filament cutter 23.

Secondly, since the blades of the filament cutters 23 are easily worn, referring to fig. 1, two filament cutters 23 are generally provided, and when the blades of the filament cutter 23 on the left side in the drawing are worn out and cannot normally operate, one worker grasps the filament bundle 21 and cuts it, winds the filament bundle 21 around the set of rollers 22 on the right side, and puts the filament bundle 21 on the filament cutter 23 on the right side.

In both of the above processes, a worker is required to grasp the tow 21 with hands and cut the tow 21 with a knife, and the tow 21 needs to be wound on the drum 22 again, which is labor-intensive and is affected by physical functions of the worker, limiting the speed of spinning. Moreover, a worker can easily accidentally injure himself or herself by holding the knife, and when the tow 21 is wound around the drum 22, the worker can easily get injured by the hand wound between the tow 21 and the drum 22. Therefore, what is needed by those skilled in the art is to provide a filament bundle clamping and cutting device capable of replacing manual clamping and cutting operations to solve the problem in the prior art that the labor intensity of the flaw cutting and filament cutter switching operations is high and the workers are easily injured.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can replace manual work to carry out centre gripping and cut off operation's silk bundle centre gripping cutting device to solve among the prior art flaw excision and filament cutter switching operation's intensity of labour and easily lead to workman injured's problem is the technical problem that technical staff in the field need solve urgently.

In order to solve the above problem, the utility model provides a silk bundle centre gripping cutting device, it includes: the displacement mechanism comprises a first frame body, a second frame body and a third frame body, wherein the first frame body can horizontally displace, a first guide mechanism extending along the vertical direction is arranged on the first frame body, the second frame body is slidably arranged on the first guide mechanism, a first driving device for driving the second frame body to displace is arranged on the first frame body, a second guide mechanism which is perpendicular to the first guide mechanism and extends along the horizontal direction is arranged on the second frame body, the third frame body is slidably arranged on the second guide mechanism, and a second driving device for driving the third frame body to displace is arranged on the second frame body; the clamping device comprises a connecting frame, a fixed plate, a movable plate and a first air cylinder, the connecting frame is connected with the third frame body, the fixed plate is connected with the connecting frame, the movable plate is hinged with the connecting frame, the movable plate and the fixed plate are arranged oppositely, and the first air cylinder is used for driving the movable plate to rotate so as to clamp and open the movable plate and the fixed plate; cutting device, it includes linear drive device, pendulum rod, circular knife driving motor, circular knife and second cylinder, linear drive device set up in on the third support body, pendulum rod one end with linear drive device's movable part is articulated, the second cylinder is used for the drive the pendulum rod rotates, circular knife driving motor set up in on the pendulum rod, the circular knife with circular knife driving motor transmission is connected, so that circular knife driving motor drives the circular knife rotates.

Preferably, the clamping device further comprises a rotating device, a rotating axis of the rotating device is parallel to the second guide mechanism, the rotating device is arranged on the third frame body, and the connecting frame is arranged on the rotating device, so that the rotating device drives the connecting frame to rotate.

Preferably, the fixed plate includes a bottom plate and two first side plates disposed on two sides of the bottom plate, the movable plate includes a top plate and two second side plates disposed on two sides of the top plate, the fixed plate and the movable plate have opposite openings, and the width of the opening of the fixed plate is greater than the width of the opening of the movable plate.

Preferably, the two second side plates are close to each other in a direction from a distance to close to the bottom plate.

Preferably, still including supplementary rising cylinder, runner and with runner meshed's flexible drive spare, supplementary rising cylinder set up in just set up along vertical direction on the first support body, the runner rotationally set up in on supplementary rising cylinder's the piston rod, flexible drive spare one end with first support body fixed connection, the other end is walked around the runner with the second support body is connected.

Preferably, the rotating wheel is a belt wheel, and the flexible transmission part is a synchronous transmission belt.

Preferably, the rotating wheel is a chain wheel, and the flexible transmission member is a transmission chain.

Preferably, the cylinder body of the second cylinder is connected with the third frame body, a piston rod of the second cylinder is rotatably provided with a guide block, the guide block is provided with a guide hole which is arranged in a penetrating manner, and the swing rod slidably penetrates through the guide hole.

Preferably, the circular knife driving motor is in transmission connection with the circular knife sequentially through a coupler, a transmission shaft, a universal joint coupler and a speed reducer.

Preferably, the first driving device and the second driving device are a synchronous belt transmission mechanism, a worm gear, a gear rack, a lead screw nut or a chain transmission mechanism.

The utility model provides an among the technical scheme, a silk bundle centre gripping cutting device, it includes: the displacement mechanism comprises a first frame body, a second frame body and a third frame body. The first support body can be horizontally displaced and is provided with a first guide mechanism extending along the vertical direction, the second support body is slidably arranged on the first guide mechanism, the first support body is provided with a first driving device used for driving the second support body to displace, the second support body is provided with a second guide mechanism perpendicular to the first guide mechanism and extending along the horizontal direction, the third support body is slidably arranged on the second guide mechanism, and the second support body is provided with a second driving device used for driving the third support body to displace. The clamping device comprises a connecting frame, a fixed plate, a movable plate and a first air cylinder. The connecting frame is connected with the third frame body, the fixed plate is connected with the connecting frame, the movable plate is hinged to the connecting frame, the movable plate and the fixed plate are arranged oppositely, and the first air cylinder is used for driving the movable plate to rotate so as to clamp and open the movable plate and the fixed plate. And the cutting device comprises a linear driving device, a swing rod, a circular knife driving motor, a circular knife and a second air cylinder. The linear driving device is arranged on the third frame body, one end of the swing rod is hinged to the movable portion of the linear driving device, the second air cylinder is used for driving the swing rod to rotate, the circular knife driving motor is arranged on the swing rod, and the circular knife is in transmission connection with the circular knife driving motor so that the circular knife driving motor drives the circular knife to rotate.

During the use, detect by the flaw on the industry camera to the silk bundle, after the industry camera detected the flaw, first support body, second support body and third support body all moved to initial position, and the movable plate opens to make the silk bundle pass between can driven plate and the fixed plate, because the transmission speed of silk bundle is invariable, when the silk bundle moves to clamping device position, first cylinder drive movable plate is towards fixed plate rotation, so that movable plate and fixed plate press from both sides tight silk bundle. Before the movable plate is closed, the linear driving device extends to drive the circular knife to penetrate through the lower portion of the tows, after the tows are clamped by the movable plate and the fixed plate, the second air cylinder moves to drive the swing rod to rotate upwards, so that the cutting edge of the circular knife is higher than the plane of the tows, then the linear driving device shortens, and meanwhile the circular knife is driven to move to cut the tows. Then, the first frame body and the second frame body move in a matched mode, the clamping device clamps the tows, the tows are wound on the roller according to the original track, and the tows are finally guided into the inlet of the filament cutter.

Due to the arrangement, the whole process does not need manual operation, so that the labor cost is reduced, the labor intensity is reduced, and the spinning production efficiency is improved; on the other hand, the problem that the tows wind the arms of workers can not occur, and safety accidents are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the relative positions of a tow, a roller and a filament cutter in the prior art;

FIG. 2 is a schematic structural view of a filament bundle clamping and cutting device according to an embodiment of the present invention;

FIG. 3 is a schematic view of an installation structure of the second frame body in FIG. 1 when the second frame body is installed on the first frame body;

FIG. 4 is a schematic view of the other angles of FIG. 3;

fig. 5 is a schematic structural view of a first frame displacement device according to an embodiment of the present invention;

FIG. 6 is a schematic view of an installation structure of the third frame body in FIG. 1 when being installed on the second frame body;

FIG. 7 is a schematic structural view of a clamping device and a cutting device according to an embodiment of the present invention

Fig. 8 is another angle view of fig. 7.

In fig. 1-8:

1. a first frame body; 2. a second frame body; 3. a third frame body; 4. a connecting frame; 5. fixing a plate; 6. a movable plate; 7. a first cylinder; 8. a linear drive device; 9. a swing rod; 10. a circular knife driving motor; 11. a circular knife; 12. a second cylinder; 13. a rotating device; 14. an auxiliary lifting cylinder; 15. a rotating wheel; 16. a flexible drive member; 17. a drive shaft; 18. a universal joint coupling; 19. a speed reducer; 20. a frame; 21. tow; 22. a roller; 23. a filament cutter; 24. a guide block; 25. the feed motor is switched off.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 8, a tow clamping and cutting device according to an embodiment of the present invention includes a displacement mechanism, a clamping device, and a cutting device. Wherein, the displacement mechanism includes first support body 1, second support body 2 and third support body 3. The first frame 1 can be horizontally displaced. For example, referring to fig. 5, a frame 20 is provided, a slide rail is provided on the frame 20, and the first frame body 1 is slidably mounted on the slide rail of the frame 20 through a slide block. And, first support body 1 can be by the drive displacement of synchronous belt drive mechanism, and frame 20 both ends are equipped with respectively and are used for meshing and the band pulley that rotationally is connected with frame 20 with the hold-in range, and the hold-in range suit is located two band pulleys at frame 20 both ends, and first support body 1 can with hold-in range fixed connection, so, then the hold-in range operation in-process can drive first support body 1 along a guiding mechanism displacement. Of course, the first frame body 1 is not limited to be displaced by the frame 20, for example, the bottom of the first frame body 1 may also be provided with a roller capable of rotating and a motor in transmission connection with the roller, so that the first frame body 1 is displaced by the roller. Referring to fig. 4, a first guide mechanism extending in a vertical direction is provided on the first frame body 1, for example, the first guide mechanism may be two guide rails arranged in parallel, and the second frame body 2 is slidably provided on the first guide mechanism through a sliding block. The first frame body 1 is provided with a first driving device for driving the second frame body 2 to move. Referring to fig. 3, the first driving means may be a timing belt driving mechanism. Of course, the first driving device may also be in the form of a lead screw nut, a rack and pinion, or a chain transmission mechanism (i.e., a synchronous belt is replaced by a chain, and a belt wheel is replaced by a chain wheel). Referring to fig. 6, the second frame body 2 is provided with a second guiding mechanism perpendicular to the first guiding mechanism and extending along the horizontal direction, the second guiding mechanism may be a guide block, the guide block is provided with a guide slot, the third frame body 3 is provided with a slide rail, and the third frame body 3 is slidably disposed on the second guiding mechanism through the slide rail. The second frame body 2 is provided with a second driving device for driving the third frame body 3 to move. The second drive means may be a synchronous belt drive, a lead screw nut, a rack and pinion or a chain drive.

The clamping device comprises a connecting frame 4, a fixed plate 5, a movable plate 6 and a first air cylinder 7. The connecting frame 4 is connected with the third frame body 3, the fixed plate 5 is connected with the connecting frame 4, the movable plate 6 is hinged with the connecting frame 4, the movable plate 6 is arranged opposite to the fixed plate 5, and the first air cylinder 7 is used for driving the movable plate 6 to rotate, for example, one end of the first air cylinder 7 is hinged with the connecting frame 4, and the other end of the first air cylinder is hinged with the movable plate 6, so that the movable plate 6 and the fixed plate 5 are clamped and opened. When the filament bundle cutting device is used, the first frame body 1, the second frame body 2 and the third frame body 3 move to the initial position and simultaneously drive the clamping device to move to the initial position, at the moment, the movable plate 6 opens, the filament bundle 21 penetrates through the movable plate 6 and the fixed plate 5, when a defect section arrives, the movable plate 6 rotates under the driving of the first air cylinder 7, the filament bundle 21 is clamped between the movable plate 6 and the fixed plate 5, the defect section and the filament bundle 21 are cut off by the cutting device, and then the first frame body 1 and the second frame body 2 simultaneously move in a matched mode to enable the cut filament bundle 21 to be wound on the roller 22 again and finally guided into the filament cutter 23.

The cutting device comprises a linear driving device 8, a swing rod 9, a circular knife driving motor 10, a circular knife 11 and a second air cylinder 12. The linear driving device 8 is arranged on the third frame body 3, one end of the swing rod 9 is hinged with the movable part of the linear driving device 8, the second air cylinder 12 is used for driving the swing rod 9 to rotate, the circular knife driving motor 10 is arranged on the swing rod 9, and the circular knife 11 is in transmission connection with the circular knife driving motor 10 so that the circular knife driving motor 10 drives the circular knife 11 to rotate. When the device is used, the cutting device moves to the initial position along with the third frame body 3 and is extended by the linear driving device 8 to drive the circular knife 11 to pass through the lower part of the filament bundle 21. When the tows 21 need to be cut off, the second air cylinder 12 acts to drive the swing rod 9 to rotate upwards, so that the cutting edge of the circular knife 11 is higher than the plane of the tows 21, then the linear driving device 8 is shortened, and simultaneously drives the circular knife 11 to displace to cut off the tows 21. Alternatively, the linear driving device 8 may be a linear module, and the movable portion thereof is a sliding table of the linear module. The linear driving device 8 can be driven by a cutting and feeding motor 25, and when the cutting and feeding motor 25 rotates, the sliding table of the linear driving device can be driven to displace, so that the circular knife driving motor 10, the circular knife 11 and the like are driven to displace.

The use process of the tow clamping and cutting device comprises the following steps: detect the flaw on the silk bundle 21 by the industry camera, after the industry camera detected the flaw, first support body 1, second support body 2 and third support body 3 all moved to initial position, and movable plate 6 opens to make silk bundle 21 can pass between driven plate 6 and the fixed plate 5, because the transmission speed of silk bundle 21 is invariable, when silk bundle 21 moved to clamping device position, first cylinder 7 drive movable plate 6 rotated towards fixed plate 5, so that movable plate 6 and fixed plate 5 press from both sides tight silk bundle 21. Before the movable plate 6 is closed, the linear driving device 8 extends to drive the circular knife 11 to penetrate through the lower portion of the tows 21, after the tows 21 are clamped by the movable plate 6 and the fixed plate 5, the second air cylinder 12 acts to drive the swing rod 9 to rotate upwards, so that the cutting edge of the circular knife 11 is higher than the plane of the tows 21, then the linear driving device 8 shortens, and simultaneously drives the circular knife 11 to displace to cut off the tows 21. Then, the first frame 1 and the second frame 2 move cooperatively, so that the clamping device clamps the filament bundle 21, winds the filament bundle 21 on the roller 22 according to the original track, and finally guides the filament bundle 21 into the inlet of the filament cutter 23.

Due to the arrangement, the whole process does not need manual operation, so that the labor cost is reduced, the labor intensity is reduced, and the spinning production efficiency is improved; on the other hand, the problem that the tows 21 are wound around the arms of workers is avoided, and safety accidents are avoided.

Referring to fig. 7 and 8, in some embodiments, the clamping device further includes a rotating device 13, the rotation axis of the rotating device 13 is parallel to the second guiding mechanism, the rotating device 13 is disposed on the third frame body 3, and the connecting frame 4 is disposed on the rotating device 13, so that the rotating device 13 drives the connecting frame 4 to rotate. By arranging the rotating device 13, the movable plate 6 and the fixed plate 5 can rotate simultaneously when clamping the tows 21 to wind the tows 21 on the rollers 22, namely, the connecting frame 4 can adjust the angles of the movable plate 6 and the fixed plate 5 during operation, and particularly, during the process that the movable plate 6 and the fixed plate 5 carry the tows 21 to run from one roller 22 to another roller 22, the connecting frame 4 rotates to adjust the angles of the movable plate 6 and the fixed plate 5, so that the tows 21 can be wound on the rollers 22 more conveniently. Optionally, the rotating device 13 includes a servo motor, a coupler and a connecting shaft, the servo motor is connected to the connecting shaft through the coupler, and the connecting frame 4 is mounted on the connecting shaft to rotate with the connecting shaft.

Referring to fig. 2, 7 and 8, in some embodiments, the fixed plate 5 includes a bottom plate and two first side plates disposed on two sides of the bottom plate, the movable plate 6 includes a top plate and two second side plates disposed on two sides of the top plate, the fixed plate 5 and the movable plate 6 are open opposite to each other, and the opening width of the fixed plate 5 is greater than the opening width of the movable plate 6. When the movable plate 6 and the fixed plate 5 are clamped, at least part of the movable plate 6 extends into the top plate. Optionally, the two second side plates are adjacent to each other in a direction from a distance to close to the base plate. So set up, when the movable plate 6 is impressed in the fixed plate 5, first curb plate and second curb plate one-to-one, the lower border of first curb plate offsets with the face of corresponding second curb plate to press the silk bundle 21 between first curb plate and second curb plate, and the quantity of first curb plate and second curb plate is two, and it is better to compress tightly the effect.

Referring to fig. 2-4, in some embodiments, the tow gripping and cutting device further includes an auxiliary lift cylinder 14, a wheel 15, and a flexible drive 16 engaged with the wheel 15. Supplementary lifting cylinder 14 sets up on first support body 1 and sets up along vertical direction, and runner 15 rotationally sets up on supplementary lifting cylinder 14's piston rod, and 16 one end of flexible drive spare and first support body 1 fixed connection, the other end is walked around runner 15 and is connected with second support body 2. So set up, when second drive arrangement drive second support body 2, supplementary lift cylinder 14 can stretch out simultaneously, supplementary second drive arrangement promotes second support body 2, so, make second support body 2 play to rise more steadily on the one hand, and can reduce second drive arrangement's load, the life-span of extension second drive arrangement, on the other hand, second support body 2 plays to rise the back that targets in place, supplementary lift cylinder 14 can lock, one reduces second drive arrangement's brake load, even the second drive arrangement brake is malfunctioning for the two, owing to the effect of drawing of lifting of supplementary lift cylinder 14, second support body 2 also can not fall down, avoid the production of device damage and incident. Alternatively, the rotating wheel 15 is a pulley and the flexible transmission member 16 is a synchronous belt, or alternatively, the rotating wheel 15 is a sprocket and the flexible transmission member 16 is a transmission chain.

Referring to fig. 7 and 8, in some embodiments, the cylinder body of the second cylinder 12 is connected to the third frame body 3, and the piston rod of the second cylinder 12 is rotatably provided with a guide block 24. For example, the guide block 24 may be hinged to the piston rod of the second cylinder 12. The guide block 24 is provided with a guide hole which is arranged in a penetrating way, and the swing rod 9 can slidably pass through the guide hole. When the linear driving device 8 drives the swing rod 9 to move, the swing rod swings and slides in the guide hole. With this arrangement, the second cylinder 12 does not need to be disposed on the movable portion of the linear driving device 8, thereby reducing the number of parts disposed on the movable portion of the linear driving device 8 and simplifying the structure.

Referring to fig. 7 and 8, in some embodiments, the circular knife driving motor 10 is connected with the circular knife 11 in a driving manner through a coupling, a driving shaft 17, a universal joint coupling 18 and a speed reducer 19. Namely, the coupling can be connected with the output shaft of the circular knife driving motor 10 and the transmission shaft 17, the transmission shaft 17 is connected with the speed reducer 19 through the universal joint coupling 18, and the universal joint coupling 18 can be arranged to allow a large position deviation between the connecting shaft and the speed reducer 19, so that the installation difficulty is reduced. The circular knife 11 is mounted on the output shaft of the reducer 19.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A tow clamp shut off device, comprising:

the displacement mechanism comprises a first frame body (1), a second frame body (2) and a third frame body (3), wherein the first frame body (1) can be displaced horizontally, a first guide mechanism extending along the vertical direction is arranged on the first frame body, the second frame body (2) is slidably arranged on the first guide mechanism, a first driving device used for driving the second frame body (2) to displace is arranged on the first frame body (1), a second guide mechanism perpendicular to the first guide mechanism and extending along the horizontal direction is arranged on the second frame body (2), the third frame body (3) is slidably arranged on the second guide mechanism, and a second driving device used for driving the third frame body (3) to displace is arranged on the second frame body (2);

the clamping device comprises a connecting frame (4), a fixed plate (5), a movable plate (6) and a first air cylinder (7), wherein the connecting frame (4) is connected with the third frame body (3), the fixed plate (5) is connected with the connecting frame (4), the movable plate (6) is hinged to the connecting frame (4), the movable plate (6) and the fixed plate (5) are oppositely arranged, and the first air cylinder (7) is used for driving the movable plate (6) to rotate so as to clamp and open the movable plate (6) and the fixed plate (5);

cutting device, it includes linear drive device (8), pendulum rod (9), circular knife driving motor (10), circular knife (11) and second cylinder (12), linear drive device (8) set up in on third support body (3), pendulum rod (9) one end with the movable part of linear drive device (8) is articulated, second cylinder (12) are used for the drive pendulum rod (9) rotate, circular knife driving motor (10) set up in on pendulum rod (9), circular knife (11) with circular knife driving motor (10) transmission is connected, so that circular knife driving motor (10) drive circular knife (11) rotate.

2. The tow clamping and cutting device according to claim 1, wherein the clamping device further comprises a rotating device (13), the rotating axis of the rotating device (13) is parallel to the second guide mechanism, the rotating device (13) is arranged on the third frame body (3), and the connecting frame (4) is arranged on the rotating device (13), so that the rotating device (13) drives the connecting frame (4) to rotate.

3. The tow clamp severing device of claim 1, wherein the stationary plate (5) comprises a bottom plate and two first side plates disposed on either side of the bottom plate, the movable plate (6) comprises a top plate and two second side plates disposed on either side of the top plate, the stationary plate (5) and the movable plate (6) are open opposite one another, and the stationary plate (5) opening width is greater than the movable plate (6) opening width.

4. The tow gripping and cutting device according to claim 3, wherein the second side plates are adjacent to each other in a direction from distal to adjacent the base plate.

5. The tow clamping and cutting device according to claim 1, further comprising an auxiliary lifting cylinder (14), a rotating wheel (15) and a flexible transmission member (16) meshed with the rotating wheel (15), wherein the auxiliary lifting cylinder (14) is arranged on the first frame body (1) and is arranged in the vertical direction, the rotating wheel (15) is rotatably arranged on a piston rod of the auxiliary lifting cylinder (14), one end of the flexible transmission member (16) is fixedly connected with the first frame body (1), and the other end of the flexible transmission member (16) bypasses the rotating wheel (15) and is connected with the second frame body (2).

6. The tow grip severing device according to claim 5, wherein the rotating wheel (15) is a pulley and the flexible drive (16) is a timing belt.

7. The tow grip severing device according to claim 5, wherein the rotating wheel (15) is a sprocket and the flexible drive (16) is a drive chain.

8. The tow clamping and cutting device according to claim 1, wherein a cylinder body of the second air cylinder (12) is connected with the third frame body (3), a piston rod of the second air cylinder (12) is rotatably provided with a guide block (24), the guide block (24) is provided with a guide hole arranged in a penetrating way, and the swing rod (9) slidably penetrates through the guide hole.

9. The tow clamping and cutting device according to claim 1, wherein the circular knife driving motor (10) is in transmission connection with the circular knife (11) sequentially through a coupler, a transmission shaft (17), a universal joint coupler (18) and a speed reducer (19).

10. The tow clamp severing device of claim 1, wherein the first and second drive devices are a synchronous belt drive, a worm gear, a rack and pinion, a lead screw nut, or a chain drive.

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