A double-sided trimming device for sheet metal

Abstract

This invention relates to the field of metal plate edge cutting technology, and discloses a double-sided edge cutting device for metal plates. The device includes a worktable with lifting components on both sides. A U-shaped fixing frame is located in the middle of the worktable. It also includes an auxiliary fixing mechanism and a cutting mechanism. The auxiliary fixing mechanism includes a suspension plate disposed on the side of the fixing frame away from the worktable. A lifting frame is slidably connected to the end of the suspension plate near the cutting wheel. An auxiliary pressure roller is disposed at the end of the lifting frame near the worktable. A lifting drive assembly for driving the auxiliary pressure roller to rise and fall is disposed on the side of the suspension plate away from the cutting wheel. By setting up the lifting drive assembly, when adjusting the cutting width, the front and rear cutting wheels move closer or further apart, and the corresponding auxiliary pressure rollers adaptively rise or fall, ensuring that the middle of the metal plate is always stably clamped by the auxiliary pressure roller during the cutting process.

Description

Technical Field

[0001] This invention relates to the field of metal plate edge cutting technology, specifically a metal plate double-sided edge cutting device. Background Technology

[0002] In the processing of sheet metal, to achieve the required neatness of the finished product's edges, it is usually necessary to trim the edges on both sides of the sheet. Existing technology generally employs high-speed rotating cutting tools to achieve this operation. Specifically, the relevant trimming equipment typically has a clearance groove extending along the cutting direction in the middle of the support plate. The cutting tool is installed within this clearance groove, with its upper edge slightly higher than the surface of the support plate. During operation, the metal sheet is fed laterally across the support plate surface, and the side to be cut passes over the clearance groove. The rotating cutting tool then performs continuous edge removal, resulting in a smooth sheet edge.

[0003] However, the above structure still has shortcomings in practical applications. Since metal plates of different specifications or with varying process requirements require different cutting widths, when the cutting width needs to be adjusted, the cutting tool must be repositioned within the clearance groove accordingly. In this case, the part of the metal plate to be cut will be in a suspended area corresponding to the clearance groove as the tool position changes, and this area lacks a solid support plate. During the cutting process, this suspended portion of the plate is prone to local deformation or high-frequency vibration under the cutting force applied by the tool, making it unable to maintain a stable posture. This leads to a decrease in the straightness of the cutting boundary, damage to the surface quality of the cut, and overall cutting accuracy that fails to meet high-standard processing requirements. Therefore, the support structure of existing edge-cutting equipment still needs further improvement. Summary of the Invention

[0004] This invention provides a double-sided cutting device for metal plates, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A metal plate double-sided edge cutting device includes a worktable, with lifting components on both sides of the worktable, and a U-shaped fixing frame in the middle of the worktable. It also includes an auxiliary fixing mechanism and a cutting mechanism. The cutting mechanism includes a sliding frame disposed on both sides of the worktable and fixedly connected to a fixed frame. Sliding seats are slidably connected to both sides of the sliding frame. An extension rod is provided on the side of the sliding seat, and a cutting wheel is rotatably connected to the end of the extension rod. The auxiliary fixing mechanism includes a suspension plate disposed on the side of the fixing frame away from the worktable, a lifting frame slidably connected to the end of the suspension plate near the cutting wheel, an auxiliary pressure roller disposed at the end of the lifting frame near the worktable, and a lifting drive assembly for driving the auxiliary pressure roller to rise and fall disposed on the side of the suspension plate away from the cutting wheel. When the sliding seat moves toward the center of the worktable, the lifting drive assembly drives the auxiliary pressure roller to move away from the worktable; when the sliding seat moves away from the center of the worktable, the lifting drive assembly drives the auxiliary pressure roller to move toward the worktable.

[0006] As a preferred embodiment of the present invention, the lifting drive assembly includes a guide side plate disposed at the end of the suspension plate away from the auxiliary pressure roller. An M-shaped guide groove is provided on the side of the guide side plate near the worktable. A sliding sleeve is disposed on the side of the suspension plate near the worktable, and a sliding rod is slidably connected to the sliding sleeve. A displacement amplification device for driving the lifting frame to rise and fall in the opposite direction with the sliding rod is disposed in the middle of the suspension plate. A lever is disposed at the end of the sliding rod and is connected through the M-shaped guide groove. A tension spring is disposed inside the sliding sleeve to drive the sliding rod to move away from the worktable. A vertical rod that cooperates with the lever is disposed on the side of the sliding seat near the center of the worktable.

[0007] As a preferred embodiment of the present invention, the M-shaped guide groove is composed of two V-shaped grooves with openings facing the worktable and connected end to end. The V-shaped groove on the side closer to the center of the worktable is higher than the V-shaped groove on the side farther from the center of the worktable. When the lever moves to the end of the M-shaped guide groove, the lever disengages from the vertical rod.

[0008] As a preferred embodiment of the present invention, the displacement amplification device includes a vertical plate fixedly connected to the middle of the suspension plate, and a synchronously rotating drive gear and a driven gear rotatably connected to the end of the vertical plate. The number of teeth of the driven gear is greater than the number of teeth of the drive gear. A rotating sleeve is rotatably connected to the middle of the slide rod, and a drive rack that meshes with the drive gear is provided on the side of the rotating sleeve. A driven rack that meshes with the driven gear is provided on the side of the lifting frame.

[0009] As a preferred embodiment of the present invention, the lifting assembly includes lifting grooves evenly distributed on the left and right sides of the workbench, a lifting roller that cooperates with the lifting groove is provided on the side of the workbench closer to the ground, and a feeding roller is provided above the lifting roller on the side closer to the fixed frame.

[0010] As a preferred embodiment of the present invention, a deflection arm is rotatably connected to the side of the sliding seat and is inclined toward the worktable. A clamping wheel is rotatably connected to the end of the deflection arm, and the clamping wheel and the cutting wheel are located on the same side of the sliding seat.

[0011] As a preferred embodiment of the present invention, the sliding frame has a U-shaped structure, and the end of the fixed frame is provided with a pushing device for driving the sliding seat to move synchronously.

[0012] As a preferred embodiment of the present invention, the jacking device includes a drive screw that runs through the middle of the sliding frame, with opposite threads on both sides of the drive screw. The two sides of the drive screw are respectively threaded to the middle of the two sliding seats. A central gear is rotatably connected to the end of the fixed frame, and satellite gears that are fixedly connected to the drive screw are meshed on both sides of the central gear.

[0013] The present invention has the following advantages: First, it significantly improves cutting accuracy and stability. By setting up an auxiliary fixing mechanism, adjustable auxiliary pressure rollers are arranged on both sides of the cutting wheel, ensuring that the metal plate is always effectively clamped during the cutting process. This effectively suppresses deformation and vibration in the cutting area caused by lack of support, and greatly improves the straightness and surface quality of the cut edge.

[0014] Secondly, it achieves adaptive control that links the cutting width adjustment with the auxiliary pressure roller. The lifting drive assembly adopts a structure that combines an M-shaped guide groove with a displacement amplification device. When the operator adjusts the cutting wheel spacing through the central gear, the auxiliary pressure roller can automatically complete the lifting and lowering switch as the sliding seat moves, without the need for separate adjustment. This makes the operation convenient and efficient, and the avoidance and reset actions are accurate and reliable.

[0015] Third, it enhances the applicability and clamping reliability of the equipment. The M-shaped guide groove has beveled structures on both the front and rear sides. Combined with the elastic pre-tensioning effect of the tension spring, the auxiliary pressure roller can adapt to metal plates of different thicknesses during the clamping process, which not only ensures the stable output of clamping force, but also avoids damage to the surface of the metal plate from rigid impact.

[0016] Fourth, optimize the feeding method and operational safety. The lifting assembly adopts a rolling conveying structure with lifting rollers and feed rollers to achieve active driving and automatic feeding of the metal sheet, reduce manual intervention, lower operational risks, and at the same time form a good timing coordination with the cutting and clamping mechanisms to ensure the stability of the continuous processing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a metal plate double-sided edge cutting device.

[0019] Figure 2 This is a schematic diagram of the structure of a metal plate double-sided edge cutting device when removing a metal plate under no-load conditions.

[0020] Figure 3 for Figure 2 The front view.

[0021] Figure 4 This is a schematic diagram of the lifting component in a double-sided cutting device for metal plates.

[0022] Figure 5 This is a schematic diagram of the cutting mechanism in a double-sided metal plate cutting device.

[0023] Figure 6 This is a schematic diagram of the sliding seat in a metal plate double-sided edge cutting device.

[0024] Figure 7 This is a schematic diagram of the lifting drive assembly in a metal plate double-sided edge cutting device.

[0025] Figure 8 This is a schematic diagram of the structure of an auxiliary pressure roller in a double-sided metal plate trimming device when it is in a high position.

[0026] Figure 9 for Figure 8 The front view.

[0027] Figure 10 This is a schematic diagram of the internal structure of the sliding sleeve in a double-sided metal plate cutting device.

[0028] Figure 11 This is a schematic diagram of the structure of an auxiliary pressure roller in a double-sided metal plate trimming device when it is in a low position.

[0029] In the diagram: 1. Workbench; 2. Fixed frame; 3. Lifting assembly; 4. Cutting mechanism; 5. Auxiliary fixing mechanism; 6. Metal plate; 7. Lifting groove; 8. Lifting roller; 9. Feeding roller; 10. Cutting groove; 11. Sliding frame; 12. Sliding seat; 13. Vertical rod; 14. Deflection arm; 15. Clamping wheel; 16. Extending rod; 17. Cutting wheel; 18. Suspension plate; 19. Lifting frame; 20. Auxiliary pressure roller; 21. Displacement amplification device; 22. Guide side plate; 23. M-shaped guide groove; 24. Sliding sleeve; 25. Sliding rod; 26. Drive rack; 27. Drive gear; 28. Vertical plate; 29. ​​Driven gear; 30. Driven rack; 31. Rotating sleeve; 32. Lifting drive assembly; 33. Lever; 34. Tension spring; 35. Pushing device; 36. Satellite gear; 37. Center gear; 38. Drive screw. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In one embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 7 A metal plate double-sided edge trimming device includes a worktable 1, which has a flat structure. Its left side can be used to connect with an existing production line, allowing the metal plate 6 to be processed to be transferred to the left side of the worktable 1 for edge trimming. Lifting components 3 are respectively provided on the left and right sides of the worktable 1 to support the metal plate 6 and convey it to the right. A U-shaped fixing frame 2 is fixedly connected to the middle of the worktable 1, with its front and rear ends fixedly connected to the front and rear sides of the worktable 1, respectively. A cutting groove 10 extending front and rear is provided in the middle of the worktable 1 to provide clearance for subsequent cutting processes. The device also includes an auxiliary fixing mechanism 5 and a cutting mechanism 4.

[0032] The cutting mechanism 4 includes sliding frames 11 disposed on the upper and lower sides of the worktable 1. The sliding frames 11 are arranged in a front-to-back orientation, and sliding seats 12 are slidably connected to their front and rear sides respectively. The two sliding seats 12 located on the front side of the worktable 1 move back and forth synchronously, and the two sliding seats 12 located on the rear side of the worktable 1 move back and forth synchronously. An extension rod 16 is fixedly connected to the right side of each sliding seat 12, and a cutting wheel 17 is rotatably connected to the right end of the extension rod 16. The cutting wheel 17 passes through the cutting groove 10. A motor for driving the cutting wheel 17 to rotate is also provided at the end of the extension rod 16. In this embodiment, a total of two cutting wheels 17 are provided, located on the front and rear sides of the worktable 1 respectively. The cutting wheel 17 on the upper front sliding seat 12 is located on the right front position, and the cutting wheel 17 on the upper rear sliding seat 12 is located on the right rear position.

[0033] The auxiliary fixing mechanism 5 includes suspension plates 18 fixedly connected to the upper and lower sides of the fixing frame 2. The suspension plates 18 are arranged in a left-right orientation and are evenly distributed along the front-back direction of the fixing frame 2. A lifting frame 19 is slidably connected to the right end of the suspension plate 18. The lifting frame 19 is composed of a vertically arranged guide post, vertical plates located on the front and rear sides of the guide post, and horizontal plates connecting the upper and lower ends of the guide post and the vertical plates. The middle part of the guide post is slidably engaged with the right end of the suspension plate 18. An auxiliary pressure roller 20 is provided on the lower right side of the lifting frame 19. The auxiliary pressure roller 20 is located on the upper and lower sides of the cutting groove 10. When the cutting wheel 17 performs the cutting operation, the auxiliary pressure roller 20 is used to clamp the metal plate 6 from the upper and lower sides to suppress the vibration of the metal plate 6 during the cutting process, thereby ensuring the cutting accuracy.

[0034] A lifting drive assembly 32 is provided on the left side of the suspension plate 18. When the sliding seat 12 moves towards the center of the worktable 1, i.e., reducing the cutting width, the lifting drive assembly 32 drives the auxiliary pressure roller 20 corresponding to the sliding seat 12 to move away from the worktable 1, so that the auxiliary pressure roller 20 avoids the cutting wheel 17; when the sliding seat 12 moves away from the center of the worktable 1, i.e. increasing the cutting width, the lifting drive assembly 32 drives the corresponding auxiliary pressure roller 20 to move towards the worktable 1, so that the auxiliary pressure roller 20 re-clamps the metal plate 6. Through the above linkage, when the position of the cutting wheel 17 is adjusted, the auxiliary pressure roller 20 can adaptively avoid or reset.

[0035] In one instance of this embodiment, please refer to Figures 7-11The lifting drive assembly 32 is symmetrically arranged on the upper and lower sides and the front and rear sides. The following description uses the lifting drive assembly 32 on the upper front side as an example. The lifting drive assembly 32 includes a guide side plate 22 fixedly connected to the left end of the suspension plate 18. An M-shaped guide groove 23 is provided on the lower side of the guide side plate 22. A sliding sleeve 24 is vertically fixed on the left side of the lower surface of the suspension plate 18. A vertically arranged sliding rod 25 is slidably connected inside the sliding sleeve 24. A tension spring 34 is provided inside the sliding sleeve 24. The lower end of the tension spring 34 is connected to the upper end of the sliding rod 25 to provide a continuous upward pulling force for the sliding rod 25. A displacement amplification device 21 is provided in the middle of the suspension plate 18. This device, on the one hand, causes the lifting frame 19 and the slide rod 25 to move in opposite directions, that is, when the slide rod 25 moves upward, the lifting frame 19 moves downward, and when the slide rod 25 moves downward, the lifting frame 19 moves upward. On the other hand, it has a displacement amplification function, so that a small range of movement of the slide rod 25 can drive the lifting frame 19 to produce a large vertical displacement, thereby ensuring that the auxiliary pressure roller 20 has a sufficient rising distance when avoiding obstacles. A lever 33 extending to the left is provided at the lower end of the slide rod 25. The lever 33 moves up and down synchronously with the slide rod 25 and can drive the slide rod 25 to generate a rotational motion. A vertical rod 13 is provided on the side of the sliding seat 12 away from the worktable 1. Taking the upper front sliding seat 12 as an example, a vertical rod 13 is vertically fixed on its upper rear surface. The M-shaped guide groove 23 is composed of two V-shaped grooves with openings facing the worktable 1 and connected end to end. The V-shaped groove closer to the center of the worktable 1 is higher than the V-shaped groove further away from the center of the worktable 1. Taking the M-shaped guide groove 23 on the upper front side as an example, the upper corner of the rear V-shaped groove is lower than the upper corner of the front V-shaped groove. In the initial state, the lever 33 is tilted forward, and the auxiliary pressure roller 20 is in a low position to clamp the metal plate 6. When the sliding seat 12 drives the vertical rod 13 to move backward, the vertical rod 13 first contacts the lever 33, pushing the lever 33 to move backward along the M-shaped guide groove 23, so that the lever 33 slides from the higher V-shaped groove on the front side to the lower V-shaped groove on the rear side. At this time, the auxiliary pressure roller 20 switches to a high position. As the vertical rod 13 continues to move backward, the lever 33 passes the top of the rear V-shaped groove and rotates, and its left end shifts to the right relative to the vertical rod 13, so that the vertical rod 13 passes the lever 33. Subsequently, the lever 33 moves to the rear end of the rear V-shaped groove under the action of the tension spring 34, and the auxiliary pressure roller 20 remains in a high position, completing one height switch. When the sliding seat 12 moves the vertical rod 13 forward, the vertical rod 13 contacts the rearward-inclined lever 33, pushing the lever 33 to slide from the lower rear V-groove to the higher front V-groove. After passing the top of the front V-groove, the vertical rod 13 disengages from the lever 33. Under the action of the tension spring 34, the lever 33 moves to the upper end of the front V-groove, and the auxiliary pressure roller 20 returns to its low position. In addition, since the M-shaped guide groove 23 has beveled edges on both the front and rear sides, the auxiliary pressure roller 20 can adaptively float up and down when clamping the metal plate 6, thus making it suitable for metal plates 6 of different thicknesses.

[0036] The displacement amplification device 21 includes a vertical plate 28 fixed to the center of the lower surface of the suspension plate 18. A mounting groove is provided at the lower end of the vertical plate 28, and a rotating shaft is rotatably connected within the mounting groove. A drive gear 27 is fixedly connected to the center of the rotating shaft, and driven gears 29 are fixedly connected to both ends of the rotating shaft. A rotating sleeve 31 is rotatably connected to the center of the sliding rod 25. A T-shaped drive rack 26 is fixedly connected to the right side of the rotating sleeve 31, and the drive rack 26 meshes with the drive gear 27. The rotating sleeve 31 moves up and down with the sliding rod 25 but does not rotate with the sliding rod 25. When the sliding rod 25 moves up and down, the drive rack 26 drives the drive gear 27 to rotate in the forward or reverse direction. Driven racks 30 are fixedly connected to the lower front and rear sides of the lifting frame 19, respectively, and mesh with the driven gears 29. The drive gear 27 drives the driven gear 29 to rotate synchronously via the rotating shaft, and the driven gear 29 drives the lifting frame 19 to move up and down via the driven racks 30. Among them, the number of teeth of the driven gear 29 is greater than the number of teeth of the driving gear 27, thereby realizing displacement amplification. The small range of movement of the slide bar 25 is amplified and drives the lifting frame 19 to drive the auxiliary pressure roller 20 to produce a large-amplitude lifting action.

[0037] In one instance of this embodiment, please refer to Figure 1 and Figure 4 The lifting assembly 3 includes multiple lifting grooves 7 evenly distributed from left to right along the worktable 1. The lifting grooves 7 are arranged front-to-back and extend vertically through the worktable 1. A front-to-back lifting roller 8 is provided on the lower surface of the worktable 1, passing through the lifting grooves 7 and protruding above the upper surface of the worktable 1. When the metal plate 6 is placed on the worktable 1, its bottom surface rolls in contact with the lifting roller 8, thereby reducing friction and facilitating the movement of the metal plate 6. The front and rear ends of the lifting roller 8 are fixedly connected to the worktable 1 via bearing seats. A feeding roller 9 is provided above the lifting roller 8 near the fixed frame 2. The feeding roller 9 is arranged front-to-back, and its front and rear ends are fixedly connected to the worktable 1 via bearing seats. It is equipped with a vertical floating device to ensure that the feeding roller 9 presses firmly against the upper surface of the metal plate 6. A drive motor is provided at the front end of the feeding roller 9 to actively drive the feeding roller 9 to rotate, thereby pushing the metal plate 6 to the right to achieve automatic feeding.

[0038] In one instance of this embodiment, please refer to Figure 1 , Figure 5 and Figure 6 A deflection arm 14 is rotatably connected to the right side of the sliding seat 12, near the center of the worktable 1. The deflection arm 14 is inclined toward the worktable 1. The sliding seat 12 is rotatably connected to the deflection arm 14 via a rotating seat. A torsion spring is installed inside the sliding seat 12, giving the deflection arm 14 a tendency to deflect toward the worktable 1. A clamping wheel 15 is rotatably connected to the right end of the deflection arm 14. Under the elastic force of the torsion spring, the clamping wheel 15 abuts against the upper and lower surfaces of the metal plate 6, providing auxiliary clamping. The sliding frame 11 has a U-shaped structure and is arranged front and back. A pushing device 35 for synchronously moving the sliding seats 12 is provided at the end of the fixed frame 2. The pushing device 35 includes a drive screw 38 that passes through the middle of the sliding frame 11. The drive screw 38 has threads with opposite directions on its front and rear sides. The middle parts of the two sliding seats 12 are threadedly connected to the front and rear sides of the drive screw 38, respectively. When the drive screw 38 rotates, the two sliding seats 12 move closer or further apart synchronously. A central gear 37 is rotatably connected to the middle of the front end of the fixed frame 2. Satellite gears 36 are meshed on the upper and lower sides of the central gear 37, respectively. The two satellite gears 36 are fixedly connected to the front ends of the upper and lower drive screws 38. A rotating wheel is provided at the front end of the central gear 37. The rotating wheel drives the central gear 37 to rotate, which in turn drives the upper and lower satellite gears 36 to rotate synchronously, thereby causing the upper and lower drive screws 38 to rotate synchronously. The thread direction of the drive screw 38 enables the corresponding sliding seats 12 on the upper and lower sides to move synchronously back and forth.

[0039] The working process of this embodiment is as follows: 1. Reset Procedure: After the worktable 1 is stably placed, rotate the central gear 37. The central gear 37 drives the drive screw 38 to rotate through the satellite gear 36, causing the sliding seat 12 to move away from the worktable 1. The vertical rod 13 on the sliding seat 12 drives the lever 33 to move away from the center of the worktable 1. At this time, the auxiliary pressure rollers 20 all move towards the center of the worktable 1, and the upper and lower auxiliary pressure rollers 20 abut against each other, completing the device reset.

[0040] 2. Parameter Adjustment Steps: Based on the required cutting width of the metal plate 6 to be cut, rotate the center gear 37 in the reverse direction to move the sliding seat 12 towards the center of the worktable 1. During the movement, the vertical rod 13 pushes the lever 33 to move towards the center of the worktable 1, and the lifting drive assembly 32 drives the auxiliary pressure roller 20 to adaptively move away from the worktable 1, so that the auxiliary pressure roller 20 avoids the cutting mechanism 4. After the distance between the two cutting wheels 17 meets the cutting width requirement, stop rotating the center gear 37, start the cutting wheels 17 and turn on the drive motor of the feed roller 9, so that the feed roller 9 rotates counterclockwise, completing the preparation work.

[0041] 3. Cutting Steps: Place the metal plate 6 on the left side of the worktable 1 and adjust its front and back position so that the front and back sides of the metal plate 6 exceed the cutting range of the cutting wheel 17. Push the metal plate 6 to the right. When the metal plate 6 moves below the left feed roller 9, the feed roller 9 and the lifting roller 8 clamp the metal plate 6 together, and the feed roller 9 drives the metal plate 6 to move continuously to the right. During the movement of the metal plate 6 to the right, its right end pushes away the auxiliary pressure rollers 20 and clamping rollers 15 that are abutting each other on the upper and lower sides in sequence. While the metal plate 6 continues to move, the cutting wheels 17 on the front and back sides cut the front and back sides of the metal plate 6. When the right end of the metal plate 6 continues to move to the position of the right feed roller 9 and the lifting roller 8, they are also pushed away, and the metal plate 6 continues to move to the right. When the left end of the metal plate 6 moves to the right side of the cutting wheel 17, the metal plate 6 continues to move to the right by the right-side feed roller 9 until the metal plate 6 is completely removed from the feed roller 9. At this time, the metal plate 6 with the cut edge is removed manually.

[0042] This invention provides a double-sided cutting device for metal plates. By setting up a lifting drive assembly 32, when adjusting the cutting width, the two cutting wheels 17 move closer or further apart, and the corresponding auxiliary pressure rollers 20 rise or fall adaptively. This ensures that the metal plate 6 is always stably clamped by the auxiliary pressure rollers 20 in the middle during the cutting process, effectively improving cutting accuracy and stability. At the same time, when the sliding seat 12 moves in the reverse direction to reset, the auxiliary pressure rollers 20 automatically move towards the worktable 1 to complete the reset. The entire adjustment process can be completed simultaneously by the central gear 37, which can be used to adjust the cutting width and the position of the auxiliary pressure rollers 20. The operation is convenient and can ensure the maximum effective clamping range.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A metal plate double-sided edge trimming device, comprising a worktable, with lifting components arranged on both sides of the worktable, characterized in that, The workbench is provided with a fixed frame with a U-shaped structure in the middle, and also includes an auxiliary fixing mechanism and a cutting mechanism; The cutting mechanism includes a sliding frame disposed on both sides of the worktable and fixedly connected to a fixed frame. Sliding seats are slidably connected to both sides of the sliding frame. An extension rod is provided on the side of the sliding seat, and a cutting wheel is rotatably connected to the end of the extension rod. The auxiliary fixing mechanism includes a suspension plate disposed on the side of the fixing frame away from the worktable, a lifting frame slidably connected to the end of the suspension plate near the cutting wheel, an auxiliary pressure roller disposed at the end of the lifting frame near the worktable, and a lifting drive assembly for driving the auxiliary pressure roller to rise and fall disposed on the side of the suspension plate away from the cutting wheel. When the sliding seat moves toward the center of the worktable, the lifting drive assembly drives the auxiliary pressure roller to move away from the worktable; when the sliding seat moves away from the center of the worktable, the lifting drive assembly drives the auxiliary pressure roller to move toward the worktable.

2. The metal plate double-sided edge cutting device according to claim 1, characterized in that, The lifting drive assembly includes a guide side plate disposed at the end of the suspension plate away from the auxiliary pressure roller. An M-shaped guide groove is provided on the side of the guide side plate near the worktable. A sliding sleeve is disposed on the side of the suspension plate near the worktable, and a sliding rod is slidably connected to the sliding sleeve. A displacement amplification device is disposed in the middle of the suspension plate to drive the lifting frame to rise and fall in the opposite direction with the sliding rod. A lever is disposed at the end of the sliding rod and is connected through the M-shaped guide groove. A tension spring is disposed inside the sliding sleeve to drive the sliding rod to move away from the worktable. A vertical rod that cooperates with the lever is disposed on the side of the sliding seat near the center of the worktable.

3. The metal plate double-sided edge cutting device according to claim 2, characterized in that, The M-shaped guide groove consists of two V-shaped grooves with openings facing the worktable and connected end to end. The V-shaped groove on the side closer to the center of the worktable is higher than the V-shaped groove on the side farther from the center of the worktable. When the lever moves to the end of the M-shaped guide groove, the lever disengages from the vertical rod.

4. The metal plate double-sided edge cutting device according to claim 2, characterized in that, The displacement amplification device includes a vertical plate fixedly connected to the middle of the suspension plate. The end of the vertical plate is rotatably connected to a synchronously rotating drive gear and a driven gear. The number of teeth of the driven gear is greater than the number of teeth of the drive gear. A rotating sleeve is rotatably connected to the middle of the slide rod. A drive rack that meshes with the drive gear is provided on the side of the rotating sleeve. A driven rack that meshes with the driven gear is provided on the side of the lifting frame.

5. A metal plate double-sided edge cutting device according to claim 1, characterized in that, The lifting assembly includes lifting grooves evenly distributed on the left and right sides of the workbench. A lifting roller that cooperates with the lifting groove is provided on the side of the workbench closer to the ground. A feeding roller is provided above the lifting roller on the side closer to the fixed frame.

6. The metal plate double-sided edge cutting device according to claim 1, characterized in that, The sliding seat is rotatably connected to a deflection arm that is inclined toward the worktable. The end of the deflection arm is rotatably connected to a clamping wheel, which is located on the same side of the sliding seat as the cutting wheel.

7. The metal plate double-sided edge cutting device according to claim 1, characterized in that, The sliding frame has a U-shaped structure, and the end of the fixed frame is provided with a pushing device to drive the sliding seat to move synchronously.

8. A metal plate double-sided edge trimming device according to claim 7, characterized in that, The jacking device includes a drive screw that runs through the middle of the sliding frame. The drive screw has threads with opposite directions on both sides. The two sides of the drive screw are threaded to the middle of the two sliding seats respectively. The end of the fixed frame is rotatably connected to a central gear. The two sides of the central gear are meshed with satellite gears that are fixedly connected to the drive screw.

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