Anti-curling device for shearing machine

By designing an adjustment and adaptive mechanism on the shearing machine, the problem of the shearing blade angle being unable to be adjusted was solved, enabling adaptive shearing for different fabrics and improving the shearing effect and garment quality.

CN223991188UActive Publication Date: 2026-03-13CHANGZHOU XIN MIKE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing shearing machines cannot adjust the angle of the shearing blades, resulting in poor shearing effects on fabrics of different thicknesses and textures, which may damage thin fabrics or fail to effectively trim the pile of thick fabrics.

Method used

An anti-rolling device for a shearing machine was designed, including an adjustment mechanism and an adaptive mechanism. By adjusting the angle and reciprocating motion of the shearing blade, it adapts to different fabric thicknesses and textures, ensuring that the shearing blade covers a wider area of ​​the fabric surface for multiple cuts.

Benefits of technology

It enables flexible adjustment of the shearing blade angle to adapt to different fabric characteristics, improves the uniformity and efficiency of shearing, avoids fabric damage, and enhances garment quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of textile machinery, and discloses an anti-curling device for a shearing machine, which comprises a workbench, the front side and the rear side of the bottom of the workbench are fixedly connected with sliding chute plates, the interiors of the sliding chute plates are slidably connected with a bearing plate, and the front side and the rear side of the top of the bearing plate are fixedly connected with supporting plates. The tops of the supporting plates are fixedly connected with a first limiting plate, the sides, close to each other, of the two supporting plates are fixedly connected with a first mounting plate, and the front side and the rear side of the interior of the first mounting plate are fixedly connected with adjusting mechanisms. According to the device, a rotating clamping plate is pressed, so that the rotating clamping plate extrudes a first spring through a connecting shaft, then the first spring can be deformed, the rotating clamping plate is separated from a clamping groove through a clamping rod, and then a first mounting plate can be driven to slide in a supporting plate; the angle of the shearing knife is adjusted to adapt to fabrics with different thicknesses and textures.
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Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to an anti-rolling device for a shearing machine. Background Technology

[0002] In garment manufacturing, some fabrics, such as leather and thick wool, require shearing machines during the shearing process to ensure a smooth surface and neat pile. These fabrics often have uneven edges or a tendency to curl due to the cutting and handling processes. Anti-curling devices are installed on small shearing machines to process garment pieces. For example, in the production of high-end fur garments, the anti-curling device prevents the fur edges from curling during the shearing process, ensuring that each piece of fur is precisely sheared. This results in a more refined appearance and improved quality of the final garment.

[0003] In the existing technology, some hair shearing machines use a cam mechanism for height adjustment. In the power transmission system of the hair shearing machine, the profile design of the cam causes the shearing blade to move up and down periodically as needed. By changing the cam with different profiles, the rising and falling amplitude of the shearing blade can be changed.

[0004] However, fixing the angle of the shearing blade can also cause problems during actual use. The appropriate shearing blade angle is crucial for fabrics of different thicknesses and textures. For thicker fabrics, such as woolen fabrics, a larger shearing blade cutting angle is needed to effectively trim the pile, while for thin silk fabrics, the angle should be smaller. Inability to adjust the shearing blade angle can lead to either inadequate trimming of the pile in thick fabrics or easy damage to thin fabrics during the shearing process. To address the above problems, an anti-rolling edge device for shearing machines is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-rolling device for a shearing machine, which aims to improve the problem that some existing devices cannot adjust the shearing blade.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-rolling device for a shearing machine includes a worktable. Slide plates are fixedly connected to the front and rear sides of the bottom of the worktable. A bearing plate is slidably connected inside the slide plates. Support plates are fixedly connected to the front and rear sides of the top of the bearing plates. A limit plate is fixedly connected to the top of the support plates. An mounting plate is fixedly connected to the adjacent side of the two support plates. Adjustment mechanisms are fixedly connected to the front and rear sides of the mounting plate. An adaptive mechanism is fixedly connected to the outside of the mounting plate. A reciprocating pushing mechanism is fixedly connected to the right side of the worktable.

[0008] The adjustment mechanism includes a mounting frame, a connecting shaft fixedly connected inside the mounting frame, a rotating plate rotatably connected to the outside of the connecting shaft, a locking rod fixedly connected to the bottom of the rotating plate, an elastic component fixedly connected to the outside of the rotating plate, and the mounting frame fixedly connected to the inside of the mounting plate.

[0009] As a further description of the above technical solution:

[0010] The elastic component includes a spring, which is externally fixedly connected to the inside of the mounting bracket and the rotating plate.

[0011] As a further description of the above technical solution:

[0012] The adaptive mechanism includes a sleeve plate, with a housing fixedly connected to both the front and rear sides of the bottom of the sleeve plate. A second limiting plate is slidably connected inside the housing. A telescopic rod is fixedly connected to the top of the second limiting plate. A second spring is sleeved on the outside of the telescopic rod. A connecting plate is fixedly connected to the bottom of the second limiting plate. The inside of the sleeve plate is fixedly connected to the outside of the first mounting plate.

[0013] As a further description of the above technical solution:

[0014] The reciprocating drive mechanism includes an extension plate, a motor is fixedly connected inside the extension plate, an eccentric wheel is fixedly connected to the drive end of the motor, a transmission plate is rotatably connected to the outer bottom end of the eccentric wheel, a follower plate is rotatably connected to the other end of the transmission plate, and the extension plate is fixedly connected to the outer right side of the worktable.

[0015] As a further description of the above technical solution:

[0016] A second mounting plate is fixedly connected to the bottom of the connecting plate, and a trimmer is fixedly connected to the outer bottom end of the second mounting plate.

[0017] As a further description of the above technical solution:

[0018] The bottom of the workbench is fixedly connected to a limit block, and the outside of the follower plate is slidably connected to the inside of the limit block;

[0019] As a further description of the above technical solution:

[0020] The top four corners of the workbench are fixedly connected to fixed plates, and pressure rollers are slidably connected to the adjacent sides of the two fixed plates. The outside of the pressure rollers is in contact with the outside of the workbench. Baffles are fixedly connected to the front and rear sides of the top of the workbench.

[0021] As a further description of the above technical solution:

[0022] The support plate has a slot on its outside, and the outside of the locking rod engages with the inside of the slot.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, by pressing and rotating the card plate, the card plate compresses the spring through the connecting shaft, which in turn causes the spring to deform. This causes the card plate to separate from the slot through the card rod, which in turn drives the mounting plate to slide inside the support plate. The angle of the shearing blade can be adjusted to adapt to fabrics of different thicknesses and textures. For thicker fabrics, such as thick blankets, the angle of the shearing blade can be appropriately increased to penetrate deeper into the fabric surface and effectively remove longer fibers, making the blanket fluffier and softer.

[0025] 2. In this utility model, by starting the motor, the motor can drive the eccentric wheel to rotate, and the eccentric wheel drives the follower plate to rotate through the transmission plate, which in turn pushes the support plate to slide outside the worktable 1, so that the shearing knife can perform shearing work on the top of the worktable. The reciprocating motion of the shearing knife allows the knife to cover a wider area on the fabric surface. Compared with the unidirectional motion of the shearing knife, the reciprocating motion can perform multiple cuts on the fabric in one fabric conveying process. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an anti-rolling device for a shearing machine proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the connecting plate of an anti-rolling device for a shearing machine proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a mounting plate for an anti-rolling device for a shearing machine proposed in this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Workbench; 2. Slide plate; 3. Bearing plate; 4. Support plate; 5. Limiting plate one; 6. Mounting plate one; 7. Mounting bracket; 8. Connecting shaft; 9. Rotating clamping plate; 10. Clamping rod; 11. Spring one; 12. Clamping groove; 13. Sleeve plate; 14. Housing; 15. Limiting plate two; 16. Telescopic rod; 17. Spring two; 18. Connecting plate; 19. Mounting plate two; 20. Hair trimmer; 21. Extension plate; 22. Motor; 23. Eccentric wheel; 24. Transmission plate; 25. Follower plate; 26. Limiting block; 27. Fixing plate; 28. Pressure roller; 29. ​​Baffle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an anti-rolling device for a shearing machine, comprising a worktable 1. The worktable 1 serves as the basic support component of the entire shearing machine system and is made of a robust and stable metal material, such as high-strength carbon steel. Its right edge is finely processed to ensure flatness and perpendicularity. Slide plates 2 are fixedly connected to the front and rear sides of the bottom of the worktable 1. The slide plates 2 are made of engineering plastics with good wear resistance and a low coefficient of friction, such as surface-treated aluminum alloy steel. They have a precise internal slide groove structure, the width and depth of which are precisely designed according to the size of the support plate 3 and the sliding requirements. The processing ensures that the bearing plate 3 can slide smoothly and stably within it. The bearing plate 3 is slidably connected inside the slide plate 2, ensuring that the bearing plate 3 can stably support the weight of the upper component during the operation of the device. Guided by the slide plate 2, it can move up and down flexibly according to the thickness of the fabric and processing requirements, realizing adaptive support and adjustment of the fabric. The top front and rear sides of the bearing plate 3 are fixedly connected to the support plate 4. The support plate 4 serves as a connecting bridge between the bearing plate 3 and the upper component. It is made of sturdy metal plate, such as stainless steel plate, and is processed by stamping, bending and other processes, with good structural strength and stability.

[0034] A limit plate 5 is fixedly connected to the top of the support plate 4. Mounting plates 6 are fixedly connected to adjacent sides of the two support plates 4. Mounting plates 6 serve as the mounting base for the adjustment and adaptive mechanisms. They are made of high-strength metal materials, such as tempered alloy steel, to ensure sufficient strength and rigidity to withstand various forces and torques generated during device operation. Adjustment mechanisms are fixedly connected to the front and rear sides of the mounting plate 6. An adaptive mechanism is fixedly connected to the outside of the mounting plate 6. The adaptive mechanism aims to enable the anti-rolling device to automatically adjust its working state according to the actual thickness and surface characteristics of the fabric, ensuring optimal contact and constraint between the device and the fabric. The adaptive mechanism includes a sleeve plate 13, which is typically made of engineering plastics or metal materials with a certain degree of elasticity and wear resistance, such as nylon reinforced with glass fiber or aluminum alloy. Its shape is designed as a sleeve that can be wrapped around the outside of the mounting plate 16. The bottom front and rear sides of the sleeve plate 13 are fixedly connected to the housing 14. The housing 14 is made of metal material, such as stainless steel. Its interior is hollow to accommodate components such as the limiting plate 15, the telescopic rod 16, and the spring 17. The side of the housing 14 is provided with a sliding groove that matches the limiting plate 15, so that the limiting plate 15 can slide freely up and down in the housing 14, while restricting its displacement in other directions, ensuring the motion accuracy and stability of the adaptive mechanism. The limiting plate 15 is slidably connected inside the housing 14. The limiting plate 15 is made of metal sheet, such as aluminum alloy plate. Its shape and size are designed according to the internal space and working requirements of the housing 14. It is usually rectangular. The edges of the limiting plate 15 are polished to reduce friction with the inner wall of the housing 14.

[0035] Limiting plate 15 slides within a sliding groove inside housing 14, achieving adaptive adjustment to changes in fabric thickness. A telescopic rod 16 is fixedly connected to the top of limiting plate 15. The telescopic rod 16 typically consists of an inner rod and an outer tube, both made of metal, such as stainless steel. The inner rod can freely extend and retract within the outer tube, with its extension length designed according to the working stroke of the adaptive mechanism and the range of fabric thickness variation. A spring 17 is sleeved on the outside of the telescopic rod 16. When the fabric thickness changes, spring 17 compresses or extends accordingly based on the displacement of limiting plate 15, generating an elastic restoring force. This force acts on limiting plate 15 and connecting plate 18, enabling the adaptive mechanism to automatically adjust the constraint force and position on the fabric. A connecting plate 18 is fixedly connected to the bottom of limiting plate 15. The connecting plate 18 is made of metal, such as steel, and its shape and dimensions are... The design is based on the overall layout of the device and the connection requirements with other components. It is usually rectangular or irregular in shape. The inside of the sleeve plate 13 is fixedly connected to the outside of the mounting plate 6. A reciprocating pushing mechanism is fixedly connected to the outside right side of the worktable 1. The function of the reciprocating pushing mechanism is to provide a periodic reciprocating motion for the anti-rolling device, so that the fabric can be continuously adjusted and moved during the shearing process, ensuring that the entire fabric surface can be sheared evenly and accurately, avoiding the situation of local uncutting or uneven shearing. The reciprocating pushing mechanism includes an extension plate 21. The extension plate 21 serves as a mounting bracket for the motor 22 and other components. It is made of metal materials, such as angle steel, and is fixed to the outside right side of the worktable 1 by welding or bolting. Its shape and size are designed according to the size and layout of the motor 22 and other related components to ensure that it can provide a stable and reliable mounting base for these components.

[0036] A motor 22 is fixedly connected inside the extension plate 21. The drive end of the motor 22 extends out of the extension plate 21 and is connected to the eccentric wheel 23, providing a power source for the entire reciprocating drive mechanism. The eccentric wheel 23 is fixedly connected to the drive end of the motor 22. The eccentric wheel 23 is usually made of metal, such as cast iron or steel, and is circular in shape. The center of the circle is offset from the axis of the drive shaft of the motor 22 by a certain distance. The size of this eccentricity is designed and adjusted according to the required reciprocating stroke and force. The outer bottom end of the eccentric wheel 23... A transmission plate 24 is rotatably connected, typically made of metal sheet, such as steel plate, and is elongated in shape. One end of the transmission plate 24 has a circular groove or bearing seat that matches the eccentric wheel 23. It is rotatably connected to the outer bottom end of the eccentric wheel 23 via a bearing or pin, allowing the transmission plate 24 to reciprocate as the eccentric wheel 23 rotates. A follower plate 25 is rotatably connected to the other end of the transmission plate 24, allowing the follower plate 25 to perform a corresponding linear reciprocating motion in response to the reciprocating motion of the transmission plate 24. The other end of the follower plate 25 contacts the fabric on the worktable 1, or indirectly contacts the fabric through other intermediate components, transmitting the reciprocating motion to the fabric and pushing it. The extension plate 21 is externally fixedly connected to the right side of the worktable 1.

[0037] The adjustment mechanism includes a mounting frame 7, whose main purpose is to provide a stable mounting and support platform for the connecting shaft 8. The mounting frame 7 has high structural strength and stability, and its flatness and perpendicularity are ensured through precision machining to ensure the accuracy of the installation of the rotating clamping plate 9. The connecting shaft 8 is fixedly connected inside the mounting frame 7. The connecting shaft 8 is a crucial rotating component in the adjustment mechanism. The connecting shaft 8 is made of high-quality alloy steel, which has good wear resistance and high hardness to withstand the torque and force generated when the rotating clamping plate 9 rotates. The rotating clamping plate 9 is rotatably connected to the outside of the connecting shaft 8. The rotating clamping plate 9 is made of a metal material with a certain elasticity and strength, such as aluminum alloy. Its shape is usually designed as a long strip to facilitate its rotation and adjustment functions.

[0038] A lever 10 is fixedly connected to the outer bottom of the rotating clamping plate 9. One end of the lever 10 is firmly connected to the outer bottom of the rotating clamping plate 9 by welding, threaded connection or riveting to form a whole. The other end of the lever 10 has a special design. An elastic component is fixedly connected to the outside of the rotating clamping plate 9. The main function of the elastic component is to provide elastic support for the rotating clamping plate 9, so that the adjustment mechanism has a certain elastic adjustment function to adapt to different working states and conditions. The elastic component includes a spring-11. As the core component of the elastic component, a suitable helical spring is selected. According to the required elastic force and stroke requirements, the appropriate spring wire diameter, spring outer diameter, pitch and free length and other parameters are selected. Carbon steel is usually used. The outside of the spring-11 is fixedly connected to the inside of the mounting bracket 7. The outside of the spring-11 is fixedly connected to the inside of the rotating clamping plate 9. The outside of the mounting bracket 7 is fixedly connected to the inside of the mounting plate-6.

[0039] Reference Figures 3 to 4 A mounting plate 19 is fixedly connected to the bottom of the connecting plate 18. The mounting plate 19 serves as the mounting base for subsequent components. Its structure fits tightly with the connecting plate 18, providing stable support for the shearing blade 20. The shearing blade 20 is fixedly connected to the bottom of the mounting plate 19. The shearing blade 20 is firmly fixed to the bottom of the mounting plate 19 by welding, screws, or special clamps. Its installation angle and position are precisely adjusted to ensure that the fabric can be sheared at the optimal angle and position during operation. A limit block 26 is fixedly connected to the bottom of the worktable 1. The limit block 26 is generally made of wear-resistant metal material, such as hardened steel or cast iron. Its shape and size are designed according to the movement trajectory and limit requirements of the follower plate 25. Typically, the limiting block 26 is connected to the bottom of the worktable 1 by welding or bolting. During welding, the connection is ensured to be firm and to prevent it from falling off due to long-term use. The external sliding connection of the follower plate 25 is connected to the inside of the limiting block 26. The top four corners of the worktable 1 are fixedly connected to the fixing plate 27. The fixing plate 27 is fixed to the top four corners of the worktable 1 by welding, bolting or riveting. During welding, the welding quality is ensured to avoid deformation of the worktable 1 due to the heat of welding. The two fixing plates 27 are slidably connected to the adjacent side of the two fixing plates 27. The pressing roller 28 is usually composed of a metal shaft and an outer rubber layer. The metal shaft is made of high-quality steel to ensure its strength, while the roller is to provide a certain amount of elasticity and friction to prevent damage to the fabric.

[0040] The outer side of the pressure roller 28 contacts the outer side of the worktable 1. Baffles 29 are fixedly connected to the front and rear sides of the top of the worktable 1. The baffles 29 are made of metal or plastic and are designed according to the size of the worktable 1 and the working requirements. Their height and length are reasonable to ensure effective blocking of the fabric. A slot 12 is provided on the outer side of the support plate 4. The slot 12 is designed to cooperate with the clamping rod 10. The shape, size, and position of the slot 12 are designed according to the shape and movement trajectory of the clamping rod 10. Its width and depth are precisely machined to ensure that the inner wall of the slot 12 is smooth and flat, preventing the clamping rod 10 from getting stuck or unable to move smoothly during engagement. The outer side of the clamping rod 10 engages with the inner side of the slot 12.

[0041] Working principle: When adjusting the mounting plate 6, pressing the rotating plate 9 causes the rotating plate 9 to compress the spring 11 via the connecting shaft 8, which in turn causes the spring 11 to deform. Under the action of the connecting shaft 8, the rotating plate 9 separates from the slot 12 via the locking rod 10, which in turn causes the mounting plate 6 to slide inside the support plate 4. When it slides to the appropriate position, releasing the rotating plate 9 causes the spring 11 to rebound, which in turn causes the locking rod 10 to engage with the slot 12.

[0042] When the trimmer blade 20 is adaptive, the trimmer blade 20 can contact the worktable 1 through the sliding of the mounting plate 16, and then perform trimming work. During the trimming process, the movement of the trimmer blade 20 causes the trimmer blade 20 to squeeze the telescopic rod 16 through the limiting plate 15. Under the action of the telescopic rod 16, the spring 17 deforms, and thus can adapt to different processing.

[0043] When the support plate 3 reciprocates outside the worktable 1, the motor 22 is started. Under the action of the motor 22, the motor 22 drives the eccentric wheel 23 to rotate. Under the rotation of the eccentric wheel 23, the eccentric wheel 23 drives the follower plate 25 to rotate through the transmission plate 24, which in turn pushes the support plate 3 to slide outside the worktable 1, so that the shearing blade 20 can perform shearing work on the top of the worktable 1.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing the curling of hair in a hair cutting machine, comprising a worktable (1), characterized in that: The bottom of the workbench (1) is fixedly connected with sliding groove plates (2) on both sides, the inside of the sliding groove plate (2) is slidably connected with a bearing plate (3), the top of the bearing plate (3) is fixedly connected with support plates (4) on both sides, the top of the support plate (4) is fixedly connected with a limiting plate (5), the side of the support plate (4) is fixedly connected with a mounting plate (6), the inside of the mounting plate (6) is fixedly connected with an adjusting mechanism on both sides, the outside of the mounting plate (6) is fixedly connected with an adaptive mechanism, the outside right side of the workbench (1) is fixedly connected with a reciprocating pushing mechanism. The adjusting mechanism comprises a mounting frame (7), the inside of the mounting frame (7) is fixedly connected with a connecting shaft (8), the outside of the connecting shaft (8) is rotatably connected with a rotating clamping plate (9), the outside bottom end of the rotating clamping plate (9) is fixedly connected with a clamping rod (10), the outside of the rotating clamping plate (9) is fixedly connected with a spring assembly, and the outside of the mounting frame (7) is fixedly connected to the inside of the mounting plate (6).

2. A device for preventing the curling of hair in a hair cutting machine according to claim 1, characterized in that: The spring assembly comprises a spring (11), the outside of the spring (11) is fixedly connected to the inside of the mounting frame (7), and the outside of the spring (11) is fixedly connected to the inside of the rotating clamping plate (9).

3. The anti-curling device for a shearing machine according to claim 1, characterized in that: The adaptive mechanism comprises a sleeve plate (13), the bottom of the sleeve plate (13) is fixedly connected with a housing (14) on both sides, the inside of the housing (14) is slidably connected with a limiting plate (15), the outside top end of the limiting plate (15) is fixedly connected with a telescopic rod (16), the outside of the telescopic rod (16) is sleeved with a spring (17), the bottom of the limiting plate (15) is fixedly connected with a connecting plate (18), and the inside of the sleeve plate (13) is fixedly connected to the outside of the mounting plate (6).

4. The anti-curling device for a shearing machine according to claim 1, characterized in that: The reciprocating pushing mechanism comprises an extension plate (21), the inside of the extension plate (21) is fixedly connected with a motor (22), the driving end of the motor (22) is fixedly connected with an eccentric wheel (23), the outside bottom end of the eccentric wheel (23) is rotatably connected with a transmission plate (24), the other end of the transmission plate (24) is rotatably connected with a follower plate (25), and the outside of the extension plate (21) is fixedly connected to the outside right side of the workbench (1).

5. A device for preventing the curling of hair in a hair cutting machine according to claim 3, characterized in that: The bottom of the connecting plate (18) is fixedly connected with a mounting plate (19), and the outside bottom end of the mounting plate (19) is fixedly connected with a shearing knife (20).

6. A device for preventing the curling of hair in a hair cutting machine according to claim 4, characterized in that: The bottom of the workbench (1) is fixedly connected with a limiting block (26), and the outside of the follower plate (25) is slidably connected to the inside of the limiting block (26).

7. The anti-curling device for a shearing machine according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected with fixed plates (27) at four corners, the side of the fixed plate (27) is slidably connected with a pinch roll (28), the outside of the pinch roll (28) is in contact with the outside of the workbench (1), and the top of the workbench (1) is fixedly connected with baffle plates (29) on both sides.

8. The anti-curling device for a shearing machine according to claim 1, characterized in that: The support plate (4) is externally provided with a clamping groove (12), and the clamping rod (10) is clamped with the inside of the clamping groove (12).