Woven bag weaving line coiling equipment

Abstract

The utility model relates to the technical field of woven bag weaving production equipment, and discloses woven bag weaving line coiling equipment which comprises a vertical plate, and a supporting plate is fixedly installed on the wall face of the bottom end of the vertical plate. The winding assembly comprises a winding shaft and a winding reel, and a limiting structure is arranged between the winding reel and the winding shaft; the driving assembly comprises a rotating main shaft, a worm and a worm gear; and the wire arrangement assembly comprises a cylindrical rod and a wire chute, and a pushing unit is arranged on the wall surface of the rear end of the vertical plate. The driving assembly is arranged to rotate the reels at the same time, the limiting structure is arranged to ensure that the winding reels synchronously rotate along with the reels for winding, the wire arranging assembly is arranged to adjust the positions of braided wires, it is ensured that the braided wires are evenly wound around the outer wall faces of the winding reels, and through the reasonable structural design, the winding efficiency of the equipment is improved; and the productivity is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of knitting bag production equipment, in particular to a knitting bag knitting thread coiling device. Background Art

[0002] A knitting bag, also known as a snake skin bag, is a kind of plastic for packaging, and its raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene.

[0003] The prior art discloses a snake skin bag knitting thread coiling device (publication number: CN104003245B), which includes a fixed frame, a discharge box, a reel, a bobbin, a pressure roller, a return spring, a fixed shaft and a wire guiding wheel. The discharge box is arranged on the side of the fixed frame, and a discharge nozzle is arranged at the rear of the discharge box. The reel is arranged on the side of the fixed frame and behind the discharge nozzle. The bobbin is sleeved on the reel. The pressure roller is located above the bobbin and both ends are arranged on the shaft plate. The shaft plate is arranged at both ends of the discharge box through a rotating shaft.

[0004] In the prior art, during use, single bobbin coiling is carried out. When the production scale becomes larger, a large number of bobbins need to be coiled to improve production efficiency. However, the coiling efficiency of the prior art is relatively low and cannot meet the production requirements.

[0005] Therefore, those skilled in the art provide a knitting bag knitting thread coiling device to solve the problems raised in the above background art. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a knitting bag knitting thread coiling device to solve the problems raised in the above background art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A knitting bag knitting thread coiling device includes: a vertical plate, a support plate is fixedly installed on the bottom end wall surface of the vertical plate, and the vertical plate is in a vertical state; a coiling assembly, which is arranged at the front end of the vertical plate and is used for coiling the knitting thread into a thread coil. The coiling assembly includes a reel and a bobbin, and a limiting structure is arranged between the bobbin and the reel; a driving assembly, which is arranged at the rear end of the vertical plate. The driving assembly includes a rotating main shaft, a worm and a worm gear. The rotating main shaft drives the reel to rotate through the worm gear and the worm; a wire arranging assembly, which is arranged at the front end of the vertical plate and is used for adjusting the position of the knitting thread. The wire arranging assembly includes a cylindrical rod and a wire guiding inclined groove. The wire guiding inclined groove is fixedly installed on the outer wall surface of the cylindrical rod. The cylindrical rod movably penetrates through the vertical plate, and a pushing unit for reciprocating the cylindrical rod is arranged on the rear end wall surface of the vertical plate. The pushing unit includes a cylinder and a push plate.

[0009] According to the woven bag knitting thread coiling equipment described above, the number of the spools is multiple. An assembly plate is fixedly installed on the rear end wall surface of the vertical plate. The assembly plate is in a "U" shape. One end of each of the multiple spools movably penetrates through the vertical plate and is movably installed on one inner wall surface of the assembly plate through bearings.

[0010] According to the woven bag knitting thread coiling equipment described above, each of the multiple spools fixedly penetrates through the corresponding worm gear. The rotating main shaft fixedly penetrates through the worm. The number of the worm gears and the rotating main shaft corresponds to the number of the spools one by one. The worm is movably meshed with the corresponding worm gear. The worm is located below the worm gear.

[0011] According to the woven bag knitting thread coiling equipment described above, a fixed pile is fixedly installed on the rear end wall surface of the vertical plate. One end of the rotating main shaft is movably installed on the fixed pile through a bearing. The driving assembly further includes a driving motor. The output shaft of the driving motor is fixedly connected to the rotating main shaft. A fixed hoop is also fixedly installed on the rear end wall surface of the vertical plate. The driving motor is fixedly installed in the fixed hoop.

[0012] According to the woven bag knitting thread coiling equipment described above, a guide rod is fixedly installed on the front end wall surface of the vertical plate. The number of the guide rods corresponds to the number of the wire arranging components one by one. The multiple guide rods descend in a stepped manner from left to right.

[0013] According to the woven bag knitting thread coiling equipment described above, each of the multiple spools is fixedly penetrated by a baffle plate. The coiling cylinder is sleeved on the outer wall surface of the spool. The limiting structure includes a cap. The cap is movably clamped with the spool. A limiting column is fixedly connected to one side wall surface of the cap close to the spool. The limiting structure further includes a limiting hole opened on one outer wall surface of the coiling cylinder. The limiting column can be movably clamped in the corresponding limiting hole.

[0014] According to the woven bag knitting thread coiling equipment described above, one end of the cylindrical rod movably penetrating through the vertical plate is fixedly connected with a push rod. The number of the push rods corresponds to the number of the cylindrical rods one by one. The ends of the push rods far away from the cylindrical rods are jointly connected with a push plate. An installation plate is fixedly connected to the outer wall surface of the assembly plate. A cylinder is fixedly installed at the top of the installation plate. The telescopic end of the cylinder is fixedly connected to the push plate. A support inclined plate is fixedly connected between the installation plate and the vertical plate. A sleeve is arranged on the outer wall surface of the push rod. The push rod movably penetrates through the sleeve. The sleeve is fixedly installed on the rear end wall surface of the vertical plate.

[0015] The present utility model provides a woven bag knitting thread coiling equipment. It has the following beneficial effects:

[0016] (1) By setting up a wire winding component at the front end of the vertical plate, the produced braided wire is wound on the outer wall surface of the wire winding cylinder. By setting up a driving component to rotate multiple reels simultaneously, and setting up a limiting structure to ensure that the wire winding cylinder rotates synchronously with the reel for winding. By setting up a wire arranging component, the position of the braided wire can be adjusted to ensure that the braided wire is evenly wound on the outer wall surface of the wire winding cylinder. By setting up a pushing unit, the cylindrical rod and the wire guiding chute are pushed to move, and the adjustment of the braided wire is completed during the movement of the wire guiding chute. Through reasonable structural design, the coiling efficiency of the equipment is improved, and the productivity is effectively increased.

[0017] (2) The driving motor is fixedly installed at the rear end of the vertical plate through a fixing hoop. The output shaft of the driving motor is fixedly connected to the rotating main shaft. The other end of the rotating main shaft is movably installed on the fixed pile through a bearing. The driving motor drives the rotating main shaft to rotate during operation. The rotating main shaft drives the worm to rotate. The worm is movably engaged with the worm gear. The reel is fixedly penetrated through the worm gear, thereby driving the reel and the wire winding cylinder to rotate. By setting up baffles fixedly installed on multiple reels, the wire winding cylinder is sleeved on the outer wall surface of the reel, and the baffle plays a role in blocking the wire winding cylinder. By setting up a limiting structure including a cap, the cap is movably clamped with the reel. A limiting column is fixedly connected to the side wall surface of the cap close to the reel. The limiting structure also includes a limiting hole opened on the outer wall surface of one side of the wire winding cylinder. The limiting column is movably clamped in the corresponding limiting hole, thereby limiting and fixing the wire winding cylinder and making the wire winding cylinder rotate synchronously with the reel.

[0018] (3) By fixedly installing a mounting plate on the rear wall surface of the vertical plate, the cylinder is fixedly installed on the mounting plate. The telescopic end of the cylinder is fixedly connected to the push plate. The cylinder drives the push plate to perform reciprocating motion during operation. The push plate is fixedly connected to multiple push rods. The cylindrical rod is fixedly connected to the corresponding push rod. Thus, the push plate drives the push rod, the cylindrical rod and the wire guiding chute to perform reciprocating motion synchronously during movement. The braided wire passes through the corresponding wire guiding chute, and the movement of the wire guiding chute drives the braided wire to perform reciprocating motion. Description of the Drawings

[0019] Figure 1 It is a front view schematic diagram of a coiling device for braided wires of a woven bag of the present utility model;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of a coiling device for braided wires of a woven bag of the present utility model;

[0021] Figure 3 It is a rear view schematic diagram of a coiling device for braided wires of a woven bag of the present utility model;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the driving component of a coiling device for braided wires of a woven bag of the present utility model;

[0023] Figure 5Exploded view of the coiling component structure of a coiling equipment for knitting bag knitting thread of the present utility model;

[0024] Figure 6 Schematic three-dimensional structure diagram of the pushing unit of a coiling equipment for knitting bag knitting thread of the present utility model.

[0025] Legend description:

[0026] 10. Vertical plate; 11. Support plate; 13. Coiling component; 14. Thread arranging component; 15. Guide rod; 16. Cylinder; 17. Driving component; 18. Sleeve; 19. Push plate; 21. Reel; 22. Coiling cylinder; 23. Worm gear; 24. Rotating main shaft; 25. Worm; 26. Driving motor; 27. Baffle; 28. Limit hole; 29. Cap; 30. Limit post; 31. Mounting plate; 32. Support inclined plate; 33. Assembly plate; 34. Push rod; 35. Cylindrical rod; 36. Wire guiding inclined groove. Detailed implementation manners

[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "inner", "outer", "side", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0030] Such as Figure 1-6As shown: A winding equipment for knitting bag knitting threads, which includes: a vertical plate 10, a support plate 11 is fixedly installed on the bottom wall surface of the vertical plate 10, and the vertical plate 10 is in a vertical state; a winding component 13, the winding component 13 is arranged at the front end of the vertical plate 10 and is used to wind the knitting threads into a thread roll. The winding component 13 includes a reel 21 and a winding cylinder 22, and a limiting structure is arranged between the winding cylinder 22 and the reel 21; a driving component 17, the driving component 17 is arranged at the rear end of the vertical plate 10, and the driving component 17 includes a rotating main shaft 24, a worm 25 and a worm gear 23, and the rotating main shaft 24 drives the reel 21 to rotate through the worm gear 23 and the worm 25; a wire arranging component 14, the wire arranging component 14 is arranged at the front end of the vertical plate 10 and is used to adjust the position of the knitting threads. The wire arranging component 14 includes a cylindrical rod 35 and a wire guiding inclined groove 36, the wire guiding inclined groove 36 is fixedly installed on the outer wall surface of the cylindrical rod 35, the cylindrical rod 35 movably penetrates through the vertical plate 10, and a pushing unit for reciprocally moving the cylindrical rod 35 is arranged on the rear wall surface of the vertical plate 10, and the pushing unit includes a cylinder 16 and a push plate 19.

[0031] Specifically, by arranging the winding component 13 at the front end of the vertical plate 10, the produced knitting threads are wound on the outer wall surface of the winding cylinder 22. By arranging the driving component 17 to rotate multiple reels 21 simultaneously, and arranging the limiting structure to ensure that the winding cylinder 22 rotates synchronously with the reel 21 for winding. By arranging the wire arranging component 14, the position of the knitting threads can be adjusted to ensure that the knitting threads are evenly wound on the outer wall surface of the winding cylinder 22. By arranging the pushing unit, the cylindrical rod 35 and the wire guiding inclined groove 36 are pushed to move, and the adjustment of the knitting threads is completed during the movement of the wire guiding inclined groove 36. Through reasonable structural design, the winding efficiency of the equipment is improved, and the productivity is effectively improved.

[0032] The number of reels 21 is multiple. An assembly plate 33 is fixedly installed on the rear wall surface of the vertical plate 10. The assembly plate 33 is in a "U" shape. One ends of the multiple reels 21 all movably penetrate through the vertical plate 10 and are movably installed on one side inner wall surface of the assembly plate 33 through bearings.

[0033] Specifically, by setting the number of reels 21 to be multiple, an assembly plate 33 is fixedly installed on the rear wall surface of the vertical plate 10. The assembly plate 33 is in a "U" shape. One ends of the multiple reels 21 all movably penetrate through the vertical plate 10 and are movably installed on one side inner wall surface of the assembly plate 33 through bearings, and the multiple reels 21 can rotate.

[0034] The multiple reels 21 fixedly penetrate through the corresponding worm gears 23, the rotating main shaft 24 fixedly penetrates through the worm 25. The number of the worm gears 23 and the rotating main shaft 24 corresponds to the number of the reels 21 one by one. The worm 25 is movably meshed with the corresponding worm gear 23, and the worm 25 is located below the worm gear 23.

[0035] Specifically, by setting a plurality of reels 21 fixedly passing through the corresponding worm wheels 23, and a rotating main shaft 24 fixedly passing through the corresponding worm gears 25, the worm gears 25 are movably engaged with the corresponding worm wheels 23. During the rotation of the rotating main shaft 24, a plurality of worm gears 25 on the outer wall surface are driven to rotate synchronously.

[0036] A fixing pile is fixedly installed on the rear end wall surface of the vertical plate 10. One end of the rotating main shaft 24 is movably installed on the fixing pile through a bearing. The driving assembly 17 further includes a driving motor 26. The output shaft of the driving motor 26 is fixedly connected to the rotating main shaft 24. A fixing hoop is also fixedly installed on the rear end wall surface of the vertical plate 10, and the driving motor 26 is fixedly installed in the fixing hoop.

[0037] Specifically, the driving motor 26 is fixedly installed on the rear end of the vertical plate 10 through the fixing hoop. The output shaft of the driving motor 26 is fixedly connected to the rotating main shaft 24. The other end of the rotating main shaft 24 is movably installed on the fixing pile through a bearing. The driving motor 26 drives the rotating main shaft 24 to rotate during operation. The rotating main shaft 24 drives the worm gear 25 to rotate. The worm gear 25 is movably engaged with the worm wheel 23. The reel 21 is fixedly passed through the worm wheel 23, thereby driving the reel 21 and the winding cylinder 22 to rotate.

[0038] Guide rods 15 are fixedly installed on the front end wall surface of the vertical plate 10. The number of the guide rods 15 corresponds to the number of the wire arranging assemblies 14 one by one. The plurality of guide rods 15 descend in a stepped manner from left to right.

[0039] Specifically, by fixedly installing the guide rods 15 on the front end of the vertical plate 10, the number of the guide rods 15 corresponds to the number of the wire arranging assemblies 14 one by one. The plurality of guide rods 15 descend in a stepped manner from left to right. The guide rods 15 are provided to support and guide the braided wires.

[0040] A plurality of reels 21 are all fixedly passed through by baffles 27. The winding cylinders 22 are sleeved on the outer wall surfaces of the reels 21. The limiting structure includes a cap 29. The cap 29 is movably clamped with the reel 21. A limiting post 30 is fixedly connected to the side wall surface of the cap 29 close to the reel 21. The limiting structure further includes a limiting hole 28 opened on the outer wall surface of one side of the winding cylinder 22. The limiting post 30 can be movably clamped in the corresponding limiting hole 28.

[0041] Specifically, by arranging a plurality of baffles 27 fixedly mounted on the spools 21, with the winding drums 22 sleeved on the outer wall surfaces of the spools 21, the baffles 27 play a role in blocking the winding drums 22. The limiting structure is provided with a cap 29, which is movably clamped with the spool 21. A limiting post 30 is fixedly connected to a side wall surface of the cap 29 close to the spool 21. The limiting structure further includes a limiting hole 28 formed on an outer wall surface of one side of the winding drum 22, and the limiting post 30 is movably clamped in the corresponding limiting hole 28, thereby limiting and fixing the winding drum 22 and enabling the winding drum 22 to rotate synchronously with the spool 21.

[0042] One end of the cylindrical rod 35 movably penetrates through the vertical plate 10 and is fixedly connected with a push rod 34. The number of the push rods 34 corresponds to the number of the cylindrical rods 35 one by one. The ends of the push rods 34 far from the cylindrical rods 35 are commonly connected with a push plate 19. An installation plate 31 is fixedly connected to the outer wall surface of the assembly plate 33. A cylinder 16 is fixedly installed at the top of the installation plate 31. The telescopic end of the cylinder 16 is fixedly connected with the push plate 19. A support inclined plate 32 is fixedly connected between the installation plate 31 and the vertical plate 10. A sleeve 18 is arranged on the outer wall surface of the push rod 34, and the push rod 34 movably penetrates through the sleeve 18. The sleeve 18 is fixedly installed on the rear wall surface of the vertical plate 10.

[0043] Specifically, by fixedly installing an installation plate 31 on the rear wall surface of the vertical plate 10, the cylinder 16 is fixedly installed on the installation plate 31, and the telescopic end of the cylinder 16 is fixedly connected with the push plate 19. The cylinder 16 pushes the push plate 19 to perform reciprocating motion during operation. The push plate 19 is fixedly connected with a plurality of push rods 34, and the cylindrical rod 35 is fixedly connected with the corresponding push rod 34. Therefore, during the movement of the push plate 19, the push rods 34, the cylindrical rods 35 and the wire chute 36 move synchronously in a reciprocating manner. The braided wire passes through the corresponding wire chute 36, and the movement of the wire chute 36 drives the braided wire to perform reciprocating motion.

[0044] The working principle of a coiling equipment for knitting bag knitting thread in this application: By arranging a coiling component 13 at the front end of a vertical plate 10, the produced knitting thread is wound on the outer wall surface of a coiling cylinder 22. By arranging a driving component 17 to rotate multiple spools 21 simultaneously, and arranging a limiting structure to ensure that the coiling cylinder 22 rotates synchronously with the spools 21 for coiling. By arranging a wire arranging component 14, the position of the knitting thread can be adjusted to ensure that the knitting thread is evenly wound on the outer wall surface of the coiling cylinder 22. By fixedly installing a mounting plate 31 on the rear wall surface of the vertical plate 10, a cylinder 16 is fixedly installed on the mounting plate 31, and the telescopic end of the cylinder 16 is fixedly connected to a push plate 19. The cylinder 16 pushes the push plate 19 to reciprocate during operation. The push plate 19 is fixedly connected to multiple push rods 34, and a cylindrical rod 35 is fixedly connected to the corresponding push rod 34. Thus, when the push plate 19 moves, it drives the push rods 34, the cylindrical rod 35, and a wire guiding inclined groove 36 to reciprocate synchronously. The knitting thread passes through the corresponding wire guiding inclined groove 36, and the movement of the wire guiding inclined groove 36 drives the knitting thread to reciprocate. Through a reasonable structural design, the coiling efficiency of the equipment is effectively improved.

[0045] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A coiling device for knitting bag knitting threads, characterized in that, Including: A vertical plate (10), on the bottom end wall surface of the vertical plate (10), a support plate (11) is fixedly installed, and the vertical plate (10) is in a vertical state; A wire winding assembly (13), the wire winding assembly (13) is arranged at the front end of the vertical plate (10) and is used for winding the braided wire into a wire coil. The wire winding assembly (13) includes a reel (21) and a wire winding cylinder (22), and a limiting structure is arranged between the wire winding cylinder (22) and the reel (21); A driving assembly (17), the driving assembly (17) is arranged at the rear end of the vertical plate (10), and the driving assembly (17) includes a rotating main shaft (24), a worm (25) and a worm gear (23). The rotating main shaft (24) drives the reel (21) to rotate through the worm gear (23) and the worm (25); A wire arranging assembly (14), the wire arranging assembly (14) is arranged at the front end of the vertical plate (10) and is used for adjusting the position of the braided wire. The wire arranging assembly (14) includes a cylindrical rod (35) and a wire guiding inclined groove (36). The wire guiding inclined groove (36) is fixedly installed on the outer wall surface of the cylindrical rod (35). The cylindrical rod (35) movably penetrates through the vertical plate (10), and a pushing unit for reciprocally moving the cylindrical rod (35) is arranged on the rear end wall surface of the vertical plate (10). The pushing unit includes a cylinder (16) and a push plate (19).

2. The coiling device for woven bag weaving threads according to claim 1, characterized in that: The number of the reels (21) is multiple. An assembly plate (33) is fixedly installed on the rear end wall surface of the vertical plate (10). The assembly plate (33) is in a "U" shape. One ends of the multiple reels (21) all movably penetrate through the vertical plate (10) and are movably installed on one side inner wall surface of the assembly plate (33) through bearings.

3. The coiling device for woven bag weaving thread according to claim 2, wherein: The multiple reels (21) fixedly penetrate through the corresponding worm gears (23), the rotating main shaft (24) fixedly penetrates through the worm (25). The number of the worm gears (23) and the rotating main shaft (24) corresponds to the number of the reels (21) one by one. The worm (25) is movably meshed with the corresponding worm gear (23), and the worm (25) is located below the worm gear (23).

4. The coiling device for the woven bag weaving thread according to claim 1, characterized in that: A fixed pile is fixedly installed on the rear end wall surface of the vertical plate (10). One end of the rotating main shaft (24) is movably installed on the fixed pile through a bearing. The driving assembly (17) further includes a driving motor (26). The output shaft of the driving motor (26) is fixedly connected with the rotating main shaft (24). A fixing hoop is also fixedly installed on the rear end wall surface of the vertical plate (10), and the driving motor (26) is fixedly installed in the fixing hoop.

5. The coiling device for woven bag weaving threads according to claim 1, characterized in that: A guiding rod (15) is fixedly installed on the front end wall surface of the vertical plate (10). The number of the guiding rods (15) corresponds to the number of the wire arranging assemblies (14) one by one. The multiple guiding rods (15) descend in a stepped manner from left to right.

6. The coiling device for woven bag weaving yarn according to claim 2, characterized in that: A baffle (27) is fixedly penetrated through each of the plurality of reels (21). A winding drum (22) is sleeved on the outer wall surface of the reel (21). The limiting structure includes a cap (29), the cap (29) is movably engaged with the reel (21), a limiting post (30) is fixedly connected to the side wall surface of the cap (29) close to the reel (21). The limiting structure further includes a limiting hole (28) formed in the outer wall surface of one side of the winding drum (22), and the limiting post (30) can be movably engaged in the corresponding limiting hole (28).

7. The coiling device for woven bag weaving threads according to claim 1, characterized in that: One end of the cylindrical rod (35) movably penetrating through the vertical plate (10) is fixedly connected with a push rod (34). The number of the push rods (34) corresponds to the number of the cylindrical rods (35) one by one. The ends of the push rods (34) far away from the cylindrical rods (35) are commonly connected with a push plate (19). An installation plate (31) is fixedly connected to the outer wall surface of the assembly plate (33). A cylinder (16) is fixedly installed at the top of the installation plate (31). The telescopic end of the cylinder (16) is fixedly connected with the push plate (19). A support inclined plate (32) is fixedly connected between the installation plate (31) and the vertical plate (10). A sleeve (18) is arranged on the outer wall surface of the push rod (34). The push rod (34) movably penetrates through the sleeve (18), and the sleeve (18) is fixedly installed on the rear wall surface of the vertical plate (10).

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