A wrinkle-proof rolling device for Tencel four-sided elastic fabric

By designing the four-sided elastic cloth elastic cloth anti-folding device of Tennis, using limit rollers, thread transmission and air conditioning, the folding and adjustment problems of elastic cloth during the winding process are solved, and efficient tension control and automatic winding are achieved, improving the improvement of Productivity.

CN117142221BActive Publication Date: 2024-12-06TEXHONG DAFENG(YANCHENG)TEXTILE CO LTD
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Patent Information

Application Number
CN202311046751.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-19
Publication Date
2024-12-06
Estimated Expiration
2043-08-19

AI Technical Summary

Technical Problem

The elastic cloth is prone to wrinkles during the winding process, and it is difficult for existing devices to adjust the position of the rolling roller and quickly disassemble the winding, which affects production efficiency.

Method used

A four-sided elastic velvet anti-folding device is designed, including a workbench, universal wheel, electric push rod, winding mechanism, clamping anti-folding mechanism and lifting mechanism, and is adjusted through limiting rollers, thread transmission and air conditioning. , realize the smooth conveying and tension adjustment of the elastic cloth, avoid wrinkles, and automatically wind and disassemble with the driving motor and semicircular clamp.

Benefits of technology

It effectively avoids the folding phenomenon of elastic cloth during the winding process, simplifies the tension adjustment and winding process, improves production efficiency, and simplifies the disassembly and collection process of elastic cloth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of elastic fabric winding, and in particular to a Tencel four-sided elastic fabric wrinkle-proof winding device, comprising a workbench, a universal wheel is arranged on the lower end surface of the workbench, an electric push rod is fixedly connected to the right edge of the rear end surface of the workbench, the electric push rod is fixedly connected to the first fixed block through the output shaft, the front end surface of the first fixed block is rotatably connected to the winding mechanism through the bearing, a support rod is fixedly connected to the left edge of the rear end surface of the workbench, a clamping anti-wrinkle mechanism is arranged inside the front end surface of the support rod, a fixed rod is evenly fixedly connected to the rear end surface of the workbench, and a lifting mechanism is arranged inside the upper end surface of the fixed rod; the present invention can adjust the force of clamping the Tencel four-sided elastic fabric to avoid the Tencel four-sided elastic fabric from wrinkling during transportation, and can adjust the position of the auxiliary winding roller, so as to facilitate the adjustment of the tension according to the needs of winding the elastic fabric, so as to make the winding more stable and neat.
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Description

Technical Field

[0001] The invention relates to the technical field of elastic fabric rolling, in particular to a wrinkle-proof rolling device for Tencel four-sided elastic fabric. Background Art

[0002] Polyester fiber, commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester formed by the polycondensation of organic dibasic acid and diol, and is a high molecular compound. The characteristics of polyester silk are that it can withstand chemicals and frequent washing, reducing the fading and discoloration of clothes. Relatively speaking, polyester silk is tougher than rayon. Stretch fabric, as the name suggests, is a stretchy grey fabric. Through the ribbed structure, the grey fabric has greater elasticity. There are many composite structures derived from the ribbed structure, mainly ribbed air layer structure and dot pattern structure. Ribbed air layer structure is a composite of ribbed structure and plain needle structure. This kind of structure has small lateral extensibility, good dimensional stability, and has the advantages of being thick and stiff. However, after the elastic fabric is produced, it is easy to wrinkle when it is rolled up due to the elastic force. In addition, the existing anti-wrinkle rolling device for the elastic fabric is not convenient for adjusting the position of the auxiliary rolling roller, which makes it difficult to adjust the tension according to the needs of the elastic fabric rolling up. Moreover, after the four-sided elastic rolling of the Tencel is completed, it is inconvenient to quickly disassemble and collect it, which greatly affects the production efficiency.

[0003] Based on this, the present invention designs a Tencel four-sided stretch fabric anti-wrinkle rolling device to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a wrinkle-proof rolling device for Tencel four-sided stretch fabric to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wrinkle-proof winding device for Tencel four-sided elastic fabric comprises a workbench, a universal wheel is arranged on the lower end surface of the workbench, an electric push rod is fixedly connected to the right edge of the rear end surface of the workbench, the electric push rod is fixedly connected to the first fixed block through the output shaft, the front end surface of the first fixed block is rotatably connected to the winding mechanism through the bearing, a support rod is fixedly connected to the left edge of the rear end surface of the workbench, a clamping anti-wrinkle mechanism is arranged on the front end surface of the support rod, the rear end surface of the workbench is evenly fixedly connected to the fixed rod, and the upper end surface of the fixed rod is arranged inside the lifting mechanism.

[0007] Furthermore, the lifting mechanism includes a storage groove, a first bevel gear, a second bevel gear, a threaded rod, a sliding rod and a crank handle. A storage groove is arranged inside the upper end surface of the fixed rod, and the bottom of the inner cavity of the storage groove is rotatably connected to the second bevel gear through a bearing.

[0008] Furthermore, the second bevel gear is meshedly connected with the first bevel gear, the end of the first bevel gear away from the second bevel gear is fixedly connected with a crank handle, the upper end of the second bevel gear is internally fixedly connected with a threaded rod, and the outer portion of the threaded rod is threadedly connected with a sliding rod.

[0009] Furthermore, a second fixed block is fixedly connected to the upper end surface of the sliding rod, a limiting roller is rotatably connected to the interior of the front end surface of the second fixed block through a bearing, a connecting groove is arranged inside the limiting roller, micro air outlet holes are evenly arranged outside the limiting roller, and an air inlet is arranged on the rear end surface of the second fixed block.

[0010] Furthermore, the clamping anti-wrinkle mechanism includes a groove, a bidirectional screw rod, a slider, a clamping column and a knob. A groove is arranged inside the front end surface of the support rod. The inner cavity of the groove is rotatably connected to a bidirectional screw rod through a bearing. The upper end surface of the bidirectional screw rod is fixedly connected to a knob.

[0011] Furthermore, a slider is connected to the external thread of the bidirectional lead screw, and a clamping column is rotatably connected to the interior of the front end surface of the slider through a bearing, and a rubber layer is arranged on the outside of the clamping column.

[0012] Furthermore, the winding mechanism includes a support column, a cross slide, a cross slide plate, a push rod, a support block, a bidirectional threaded rod, a semicircular clamp and a crank, and a driving motor is arranged inside the rear end surface of the first fixed block.

[0013] Furthermore, the driving motor is fixedly connected to the support column via an output shaft, a cross slot is provided inside the support column, and a bidirectional threaded rod is rotatably connected to the inner cavity of the cross slot via a bearing.

[0014] Furthermore, the front end surface of the bidirectional threaded rod is fixedly connected with a crank, the external thread of the bidirectional threaded rod is connected with a cross slide, and the cross slide is rotatably connected with a push rod at one end away from each other through a rotating shaft.

[0015] Furthermore, one end of the push rod away from the cross slide is rotatably connected to a support block via a rotating shaft, and one end of the support block away from the push rod is fixedly connected to a semicircular clamping plate, and a rubber layer is arranged on the outside of the semicircular clamping plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, personnel pass the produced Tencel four-sided elastic fabric through the clamping columns, and then use the limiting roller to press and limit the Tencel four-sided elastic fabric, so as to ensure the smooth transportation of the Tencel four-sided elastic fabric, and the limiting roller presses and limits the Tencel four-sided elastic fabric in a wave-shaped staggered manner, so that the tension of the Tencel four-sided elastic fabric can be adjusted while pressing and limiting it, so that it can be transported and rolled more flatly, and the personnel hold the knob to rotate the two-way lead screw, and the two-way lead screw thread transmission slider is slidably connected in the inner cavity of the groove, so that the slider drives the clamping columns to approach each other, so as to adjust the force of clamping the Tencel four-sided elastic fabric, and avoid wrinkles of the Tencel four-sided elastic fabric during transportation.

[0018] 2. In the present invention, when the Tencel four-sided elastic fabric is pressed and limited, the personnel rotates the first bevel gear to transmit the second bevel gear by holding the crank handle, and the second bevel gear rotates the threaded rod and the threaded transmission sliding rod is slidably connected in the inner cavity of the storage groove, thereby causing the sliding rod to push the second fixed block to drive the limiting roller to adjust the height, and then the Tencel four-sided elastic fabric passes through the limiting roller in a wave shape. At the same time, the personnel use the lifting mechanism to adjust the height of the limiting roller to press the Tencel four-sided elastic fabric in a displaced manner, thereby being able to adjust the tension of the Tencel four-sided elastic fabric, and the personnel use the air inlet to connect the external cold air pipeline, and then transport the external cold air into the inner cavity of the connecting groove through the air inlet, and the limiting roller is evenly provided with micro-air outlet holes on the outside, so that the cold air passes through the micro-air outlet holes to freeze the Tencel four-sided elastic fabric, so that its elasticity is reduced and it is more convenient to roll up, thereby avoiding the situation where wrinkles appear due to stretching and rebounding when the Tencel four-sided elastic fabric is rolled up.

[0019] 3. In the present invention, when the Tencel four-sided elastic fabric is rolled up, a person holds the crank to rotate the bidirectional threaded rod, and makes the bidirectional threaded rod thread transmission cross slide plate slide and connect to each other in the inner cavity of the cross slide groove, so that the cross slide plate drives the push rod by the rotating shaft, and then the push rod uses the rotating shaft to cooperate with the support block to pull the semicircular clamping plate to slightly clamp one end of the Tencel four-sided elastic fabric, and a rubber layer is arranged on the outside of the semicircular clamping plate to protect the Tencel four-sided elastic fabric, and at the same time, the driving motor is started to rotate the support column to drive the push rod and the semicircular clamping plate, so that the semicircular clamping plate drives the Tencel four-sided elastic fabric to be rolled up, and the rolled Tencel four-sided elastic fabric is taken out. When fabricating, a person holds the crank and turns the two-way threaded rod, and the thread-driven cross slide plate slides away from each other in the inner cavity of the cross slide, so that the cross slide plate uses the rotating shaft to drive the pushing rod to push the supporting block and the semicircular splint to slightly open, and then rotates the outer side of the semicircular splint to rewind the Tencel four-sided elastic fabric, and makes one end of the Tencel four-sided elastic fabric detach from the inner cavity of the semicircular splint, and turns the crank again to drive the two-way threaded rod, the thread-driven cross slide plate drives the pushing rod to pull the supporting block and the semicircular splint to be stored in the inner cavity of the cross slide, and then the person removes the Tencel four-sided elastic, thereby avoiding the trouble of being inconvenient to collect it after the Tencel four-sided elastic is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0021] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the workbench of the present invention;

[0023] Figure 4 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of a half-section structure of a support column of the present invention;

[0025] Figure 6 It is a schematic diagram of a partially cutaway and enlarged structure of the workbench of the present invention;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] In the figure: 1. workbench; 2. universal wheel; 3. winding mechanism; 301. support column; 302. cross slide; 303. cross slide plate; 304. push rod; 305. support block; 306. two-way threaded rod; 307. semicircular clamp; 308. crank; 4. clamping anti-wrinkle mechanism; 401. groove; 402. two-way screw rod; 403. slider; 404. clamping column; 405. knob; 5. limit roller; 6. micro air outlet; 7. electric push rod; 8. first fixed block; 9. fixed rod; 10. lifting mechanism; 101. storage groove; 102. first bevel gear; 103. second bevel gear; 104. threaded rod; 105. slide rod; 106. crank; 11. air inlet; 12. second fixed block; 13. support rod; 14. drive motor; 15. connecting groove; DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] See also Figure 1-6 , the present invention provides a technical solution:

[0033] A wrinkle-proof winding device for Tencel four-sided stretch fabric comprises a workbench 1, a universal wheel 2 is arranged on the lower end face of the workbench 1, an electric push rod 7 is fixedly connected to the right edge of the rear end face of the workbench 1, the electric push rod 7 is fixedly connected to a first fixed block 8 through an output shaft, a winding mechanism 3 is rotatably connected to the front end face of the first fixed block 8 through a bearing, a support rod 13 is fixedly connected to the left edge of the rear end face of the workbench 1, a clamping anti-wrinkle mechanism 4 is arranged on the front end face of the support rod 13, a fixing rod 9 is evenly fixedly connected to the rear end face of the workbench 1, and a lifting mechanism 10 is arranged on the upper end face of the fixing rod 9.

[0034] In this embodiment, the lifting mechanism 10 includes a storage groove 101, a first bevel gear 102, a second bevel gear 103, a threaded rod 104, a sliding rod 105 and a crank 106. The upper end surface of the fixed rod 9 is provided with a storage groove 101, and the bottom of the inner cavity of the storage groove 101 is rotatably connected to the second bevel gear 103 through a bearing, and the second bevel gear 103 is meshed with the first bevel gear 102. The first bevel gear 102 is fixedly connected to the crank 106 at one end away from the second bevel gear 103, and the upper end of the second bevel gear 103 is fixedly connected to the threaded rod 104, and the outer surface of the threaded rod 104 is threadedly connected to the sliding rod 105. The upper end surface of the sliding rod 105 is fixedly connected to the second fixed block 12, and the front end surface of the second fixed block 12 is rotatably connected to the limiting roller 5 through a bearing. The limiting roller 5 is provided with a connecting groove 15, and the limiting roller 5 is evenly provided with micro air outlet holes 6 on the outside, and the rear end surface of the second fixed block 12 is provided with an air inlet 11.

[0035] In this embodiment, the clamping anti-wrinkle mechanism 4 includes a groove 401, a bidirectional screw rod 402, a slider 403, a clamping column 404 and a knob 405. A groove 401 is arranged inside the front end surface of the support rod 13. The inner cavity of the groove 401 is rotatably connected to the bidirectional screw rod 402 through a bearing. The upper end surface of the bidirectional screw rod 402 is fixedly connected to the knob 405. The external thread of the bidirectional screw rod 402 is connected to the slider 403. The internal front end surface of the slider 403 is rotatably connected to the clamping column 404 through a bearing. A rubber layer is arranged on the outside of the clamping column 404.

[0036] In this embodiment, the winding mechanism 3 includes a support column 301, a cross slide 302, a cross slide plate 303, a pushing rod 304, a support block 305, a bidirectional threaded rod 306, a semicircular splint 307 and a crank 308. A driving motor 14 is arranged inside the rear end face of the first fixed block 8, and the driving motor 14 is fixedly connected to the support column 301 through an output shaft. A cross slide 302 is arranged inside the support column 301, and the inner cavity of the cross slide 302 is rotatably connected to the bidirectional threaded rod 306 through a bearing, and the front end face of the bidirectional threaded rod 306 is fixedly connected to the crank 308, and the external surface of the bidirectional threaded rod 306 is threadedly connected to the cross slide plate 303, and the cross slide plate 303 is rotatably connected to the pushing rod 304 at one end away from each other through a rotating shaft, and the pushing rod 304 is rotatably connected to the support block 305 at one end away from the cross slide plate 303 through a rotating shaft, and the support block 305 is fixedly connected to the semicircular splint 307 at one end away from the pushing rod 304, and a rubber layer is arranged on the outside of the semicircular splint 307.

[0037] The working principle of the present invention is as follows: personnel pass the produced Tencel four-sided elastic fabric through the clamping columns 404, and then use the limiting roller 5 to press and limit the Tencel four-sided elastic fabric, so as to ensure the smooth transportation of the Tencel four-sided elastic fabric, and the limiting roller 5 presses and limits the Tencel four-sided elastic fabric in a wave-shaped staggered manner, so that the tension of the Tencel four-sided elastic fabric can be adjusted while pressing and limiting it, so that it can be transported and rolled more flatly, and the personnel rotate the two-way screw rod 402 by holding the knob 405, and the two-way screw rod 402 threaded transmission slider 403 is slidably connected in the inner cavity of the groove 401, so that the slider 403 drives the clamping columns 404 to approach each other, so as to adjust the clamping of the Tencel four-sided elastic fabric. To increase the strength, the Tencel four-sided stretch fabric is prevented from wrinkling during transportation. When pressing and limiting the Tencel four-sided stretch fabric, the personnel holds the crank handle 106 to rotate the first bevel gear 102 to transmit the second bevel gear 103, and the second bevel gear 103 rotates the threaded rod 104 to thread the transmission slide rod 105 to be slidably connected in the inner cavity of the storage groove 101, so that the slide rod 105 pushes the second fixed block 12 to drive the limiting roller 5 to adjust the height, and then the Tencel four-sided stretch fabric passes through the limiting roller 5 in a wave shape. At the same time, the personnel use the lifting mechanism 10 to adjust the height of the limiting roller 5 to press the Tencel four-sided stretch fabric in an offset manner, so as to adjust the tension of the Tencel four-sided stretch fabric, and the personnel use the air inlet 11 to connect the external cooling air pipe The external cold air is then delivered into the inner cavity of the connecting groove 15 through the air inlet 11, and the outer portion of the limiting roller 5 is evenly provided with micro air outlet holes 6, so that the cold air passes through the micro air outlet holes 6 to freeze the Tencel four-sided elastic fabric, reducing its elasticity to make it easier to roll up, thereby avoiding wrinkles due to stretching and rebounding when the Tencel four-sided elastic fabric is rolled up. Finally, when rolling up the Tencel four-sided elastic fabric, the personnel holds the crank 308 to rotate the bidirectional threaded rod 306, and makes the bidirectional threaded rod 306 thread-driven cross slide 303 slide and connect to each other in the inner cavity of the cross slide 302, so that the cross slide 303 drives the push rod 304 by the rotating shaft, and then the push rod 304 uses the rotating shaft to cooperate with the support block 305 to pull the semicircular clamp 3 07 slightly clamps one end of the Tencel four-sided stretch fabric, and at the same time, starts the driving motor 14 to rotate the support column 301 to drive the push rod 304 and the semicircular clamping plate 307, so that the semicircular clamping plate 307 drives the Tencel four-sided stretch fabric to be rolled up. When taking down the rolled-up Tencel four-sided stretch fabric, a person holds the crank 308 to rotate the two-way threaded rod 306, and the threaded transmission cross slide plate 303 is slidably connected in the inner cavity of the cross slide groove 302 away from each other, so that the cross slide plate 303 uses the rotating shaft to drive the push rod 304 to push the support block 305 and the semicircular clamping plate 307 to be slightly opened, and then the rolled-up Tencel four-sided stretch fabric outside the semicircular clamping plate 307 is rotated, and one end of the Tencel four-sided stretch fabric is separated from the inner cavity of the semicircular clamping plate 307.The crank 308 is turned again to drive the two-way threaded rod 306 to drive the cross slide 303 to drive the push rod 304 to pull the support block 305 and the semicircular clamp 307 to be stored in the inner cavity of the cross slide 302, and then the personnel will take down the Tencel four-sided elastic, thereby avoiding the trouble of inconvenience in collecting the Tencel four-sided elastic after the winding is completed.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wrinkle-proof winding device for Tencel four-sided stretch fabric, comprising a workbench (1), characterized in that: The lower end surface of the workbench (1) is provided with a universal wheel (2); the right edge of the rear end surface of the workbench (1) is fixedly connected to an electric push rod (7); the electric push rod (7) is fixedly connected to a first fixed block (8) via an output shaft; the front end surface of the first fixed block (8) is rotatably connected to a winding mechanism (3) via a bearing; the left edge of the rear end surface of the workbench (1) is fixedly connected to a support rod (13); the front end surface of the support rod (13) is provided with a clamping anti-wrinkle mechanism (4); the rear end surface of the workbench (1) is evenly fixedly connected to a fixed rod (9); the upper end surface of the fixed rod (9) is provided with a lifting mechanism (10); The lifting mechanism (10) comprises a receiving groove (101), a first bevel gear (102), a second bevel gear (103), a threaded rod (104), a sliding rod (105) and a crank (106); the receiving groove (101) is arranged inside the upper end surface of the fixed rod (9); the bottom of the inner cavity of the receiving groove (101) is rotatably connected to the second bevel gear (103) via a bearing; The second bevel gear (103) is meshingly connected with the first bevel gear (102); an end of the first bevel gear (102) away from the second bevel gear (103) is fixedly connected with a crank handle (106); an upper end of the second bevel gear (103) is internally fixedly connected with a threaded rod (104); and an external thread of the threaded rod (104) is threadedly connected with a slide rod (105); The upper end surface of the slide bar (105) is fixedly connected to a second fixed block (12); the front end surface of the second fixed block (12) is rotatably connected to a limiting roller (5) via a bearing; a connecting groove (15) is provided inside the limiting roller (5); micro air outlet holes (6) are evenly provided outside the limiting roller (5); and the rear end surface of the second fixed block (12) is provided with an air inlet (11); The clamping anti-wrinkle mechanism (4) comprises a groove (401), a bidirectional screw rod (402), a slider (403), a clamping column (404) and a knob (405); the front end surface of the support rod (13) is provided with a groove (401); the inner cavity of the groove (401) is rotatably connected to the bidirectional screw rod (402) via a bearing; the upper end surface of the bidirectional screw rod (402) is fixedly connected to the knob (405); The bidirectional screw rod (402) is externally threadedly connected to a slider (403), the front end surface of the slider (403) is internally rotatably connected to a clamping column (404) via a bearing, and the clamping column (404) is externally provided with a rubber layer; The winding mechanism (3) comprises a support column (301), a cross slide (302), a cross slide plate (303), a push rod (304), a support block (305), a bidirectional threaded rod (306), a semicircular clamping plate (307) and a crank (308), and a driving motor (14) is arranged inside the rear end surface of the first fixed block (8); The driving motor (14) is fixedly connected to a support column (301) via an output shaft, a cross slot (302) is provided inside the support column (301), and a bidirectional threaded rod (306) is rotatably connected to the inner cavity of the cross slot (302) via a bearing; The front end surface of the bidirectional threaded rod (306) is fixedly connected to a crank (308); the outer surface of the bidirectional threaded rod (306) is threadedly connected to a cross slide (303); and one end of the cross slide (303) is rotatably connected to a push rod (304) via a rotating shaft. One end of the push rod (304) away from the cross slide (303) is rotatably connected to a support block (305) via a rotating shaft, and one end of the support block (305) away from the push rod (304) is fixedly connected to a semicircular clamping plate (307), and a rubber layer is provided on the outside of the semicircular clamping plate (307).