Numerical control metal plate dividing and shearing machine

Abstract

The invention discloses a numerical control metal plate dividing and shearing machine which comprises a base. The anti-loosening unwinding structure is arranged at the top of the base, the anti-loosening unwinding structure comprises a mounting base, the bottom of the mounting base is fixedly connected with the top of the base, a first motor is mounted on one side of the mounting base, and a transmission rod is mounted at the output end of the first motor; one end of the transmission rod is fixedly connected with an unwinding roller; under the action of the anti-loosening unwinding structure, a metal coil and the unwinding roller can be tightly attached, the situation that the metal coil and the unwinding roller are separated due to loosening is avoided, meanwhile, under the action of the limiting roller, in the unwinding process of the metal coil, a metal plate can be attached to the metal coil, separation is not prone to occurring, and the metal coil can be conveniently wound. Under the action of the first spring, the metal plate on the metal roll can still be attached to the metal roll to be limited after the thickness of the metal plate on the metal roll is reduced along with the unwinding thickness.

Description

Technical Field

[0001] This invention relates to the field of slitting machine technology, specifically a CNC metal sheet slitting machine. Background Technology

[0002] A metal sheet slitting machine is a mechanical device used to cut metal sheets into specific sizes as needed. It is mainly used in the metal processing field. The metal sheet slitting machine (also known as a shearing machine) cuts metal sheets by the shearing force of the blades. It is suitable for industries such as office furniture, metal structures, boiler manufacturing, and automobiles, and can process materials such as iron sheets, aluminum sheets, and stainless steel.

[0003] A metal sheet slitting machine is essentially a device for cutting metal sheets. A slitting machine cuts metal sheets into the required sizes by using multiple blades to cut simultaneously. However, the cut metal sheets are connected to the original metal sheets at the cutting point. Therefore, during the cutting process, it is necessary to guide and limit the metal sheets. Thus, some slitting machines with special structures and functions can be used.

[0004] Traditional slitting machines typically require unwinding the wound metal sheet during the cutting process. However, during unwinding, the metal sheet is prone to loosening due to winding looseness, affecting the transmission and processing of the metal sheet. Furthermore, the metal coil is usually fitted with an unwinding roller, but the fixed size of the unwinding roller cannot accommodate the winding requirements of metal coils of different thicknesses, easily leading to separation and unstable fixing. Additionally, the metal sheet is easily bent and deformed during unwinding, resulting in unevenness during cutting, affecting the cutting effect and precision. Moreover, the fixed distance between the cutting blades in existing slitting machines prevents the simultaneous cutting of metal sheets of different sizes, and after cutting, the individual metal sheets are prone to colliding and entanglement during winding, further affecting the actual winding effect.

[0005] In summary, a CNC metal sheet shearing machine is needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a CNC metal sheet shearing machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A CNC metal sheet shearing machine, comprising:

[0009] Base;

[0010] An anti-loosening unwinding structure is provided on the top of the base. The anti-loosening unwinding structure includes a mounting base. The bottom of the mounting base is fixedly connected to the top of the base. A first motor is installed on one side of the mounting base. A transmission rod is installed at the output end of the first motor. One end of the transmission rod is fixedly connected to an unwinding roller.

[0011] A conductive shaping structure is disposed on the top of the base. The conductive shaping structure includes a first U-shaped frame, and a first guide roller and a second guide roller are rotatably disposed on the inner surface of the first U-shaped frame. The first guide roller and the second guide roller are disposed flush with each other.

[0012] A cutting and dividing structure is disposed on the top of the base. The cutting and dividing structure includes a second U-shaped frame, the bottom of which is fixedly connected to the top of the base.

[0013] Preferably, the anti-loosening unwinding structure further includes a sliding rod fixedly connected to one side of the unwinding roller, and an annular groove is provided on one side of the mounting base, with the sliding rod slidably connected to the inner wall of the annular groove.

[0014] Preferably, an mounting plate is fixedly connected to the inner wall of the unwinding roller, a first hydraulic telescopic rod is installed on the top of the mounting plate, a rectangular top block is fixedly connected to the output end of the first hydraulic telescopic rod, a rectangular through hole is opened on the top of the unwinding roller, and an extrusion arc plate is fixedly connected to the top of the rectangular top block.

[0015] Preferably, an L-shaped plate is fixedly connected to the top of the mounting base, a second hydraulic telescopic rod is installed at the bottom of the L-shaped plate, a first wheel frame is fixedly connected to the output end of the second hydraulic telescopic rod, and a limit roller is rotatably provided inside the first wheel frame.

[0016] Preferably, a sliding round rod is fixedly connected to the top of the first wheel frame. The sliding round rod is slidably disposed on the inner wall of the L-shaped plate. A round baffle is fixedly connected to the top of the sliding round rod. A first spring is sleeved on the outer surface of the sliding round rod. The two ends of the first spring are fixedly connected to the round baffle and the L-shaped plate, respectively.

[0017] Preferably, the conductive shaping structure further includes auxiliary guide rollers rotatably disposed on both sides of the first U-shaped frame. The outer surface of the auxiliary guide rollers is provided with a plurality of circular grooves. A fixed circular rod is fixedly connected to the inner wall of the circular grooves. A sliding cylinder is slidably connected to the top end of the fixed circular rod. A circular connecting block is fixedly connected to the top end of the sliding cylinder. A second spring is sleeved on the outer surface of the fixed circular rod. The two ends of the second spring are fixedly connected to the outer surface of the sliding cylinder and the inner wall of the circular groove, respectively.

[0018] Preferably, a U-shaped frame is fixedly connected to the top of the first U-shaped frame, a third hydraulic telescopic rod is installed at the bottom of the U-shaped frame, a second wheel frame is fixedly connected to the output end of the third hydraulic telescopic rod, a shaping roller is rotatably connected between the two sides of the inner surface of the second wheel frame, and a limiting round rod is fixedly connected to the top of the second wheel frame, the limiting round rod being slidably disposed on the inner wall of the U-shaped frame.

[0019] Preferably, two third guide rollers are rotatably arranged on both sides of the second U-shaped frame. The two third guide rollers are aligned vertically, and the lower third guide roller is flush with the first guide roller and the second guide roller in the horizontal direction.

[0020] Preferably, a second motor is installed on one side of the second U-shaped frame, and a cutting roller is fixedly connected to the output end of the second motor. The outer surface of the cutting roller is provided with a plurality of first screw holes, and the number of first screw holes in each group is four. An annular clamping plate is fitted on the outer surface of the cutting roller, and a cutting blade is fixedly connected to one side of the annular clamping plate. A second screw hole is provided on the inner wall of the annular clamping plate, and a first threaded clamping rod is threadedly connected to the inner walls of the first screw hole and the second screw hole.

[0021] Preferably, a transmission platform is fixedly connected to one side of the second U-shaped frame, a connecting guide roller is rotatably arranged at one edge of the transmission platform, a rectangular slot is opened at the top of the transmission platform, a rectangular block is engaged with the inner wall of the rectangular slot, a third screw hole is opened on one side of the transmission platform, a connecting plate is fixedly connected to one side of the rectangular block, a fourth screw hole is opened on one side of the connecting plate, a second threaded rod is threadedly connected to the inner walls of the third and fourth screw holes, and a partition plate is fixedly connected to the top of the rectangular block.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention can achieve a tight fit between the metal coil and the unwinding roller under the action of the anti-loosening unwinding structure, preventing separation due to loosening. Simultaneously, under the action of the limiting roller, the metal plate will adhere to the metal coil during unwinding and will not easily separate. Under the action of the first spring, the metal plate on the metal coil will remain adhered to the metal coil for limiting even as the unwinding thickness decreases. By setting a conductive shaping structure, while the first guide roller and auxiliary guide roller are guiding, if the metal plate deforms, the first guide roller and auxiliary guide roller cannot adapt to the deformed metal plate and are prone to jamming. The fixed round rod cooperates with the sliding cylinder... This allows the deformed metal plate to slide along the inner wall of the sliding cylinder, which in turn assists in transmission and prevents jamming. Simultaneously, the third hydraulic telescopic rod drives the second wheel frame, enabling the shaping roller to engage with the second guide roller. This flattens the metal plate passing between the shaping roller and the second guide roller, facilitating subsequent shearing. By setting a cutting separator structure, the distance between the two cutting blades can be adjusted through the second screw hole on the annular plate and the first screw hole on the cutting roller, allowing for the shearing of metal plates into different sizes. Furthermore, the rectangular clamping blocks and slots allow for the adjustment and installation of the separator plate to accommodate the cutting blades, thus separating the sheared blades and preventing entanglement. Attached Figure Description

[0023] Figure 1 To illustrate the overall structure of the CNC metal sheet shearing machine;

[0024] Figure 2 To illustrate the structural diagram of the base of the CNC metal sheet shearing machine;

[0025] Figure 3 This is a schematic diagram showing the structure of the mounting base of the CNC metal sheet shearing machine;

[0026] Figure 4 This is a schematic diagram showing the structure of the unwinding roller of a CNC metal sheet slitting machine;

[0027] Figure 5 This is a schematic diagram of the structure at the first U-shaped frame of the CNC metal sheet shearing machine;

[0028] Figure 6 This is a schematic diagram of the structure of the auxiliary guide roller of a CNC metal sheet shearing machine;

[0029] Figure 7 To demonstrate a CNC sheet metal shearing machine Figure 6 Enlarged view of the structure at point A in the middle;

[0030] Figure 8 This is a schematic diagram of the structure at the second U-shaped frame of the CNC metal sheet shearing machine;

[0031] Figure 9 This is a schematic diagram showing the structure of the cutting blade of a CNC metal sheet shearing machine;

[0032] Figure 10 This is a schematic diagram showing the structure of the partition plate of a CNC metal sheet shearing machine.

[0033] In the picture:

[0034] 1. Base;

[0035] 2. Anti-loosening unwinding structure; 21. Limiting roller; 22. Mounting base; 23. First motor; 24. Transmission rod; 25. Unwinding roller; 26. Sliding rod; 27. Annular groove; 28. Mounting plate; 29. ​​First hydraulic telescopic rod; 210. Rectangular through hole; 211. Rectangular top block; 212. Extrusion arc plate; 213. L-shaped plate; 214. Second hydraulic telescopic rod; 215. Sliding round rod; 216. Round baffle; 217. First spring; 218. First wheel frame;

[0036] 3. Conducting and shaping structure; 31. First U-shaped frame; 32. First guide roller; 33. Second guide roller; 34. Auxiliary guide roller; 35. Circular groove; 36. Fixed round rod; 37. Sliding cylinder; 38. Circular connecting block; 39. Second spring; 310. U-shaped frame; 311. Third hydraulic telescopic rod; 312. Second wheel frame; 313. Shaping roller; 314. Limiting round rod;

[0037] 4. Cutting and separating structure; 41. Second U-shaped frame; 42. Second motor; 43. Cutting roller; 44. First screw hole; 45. Annular clamping plate; 46. Cutting blade; 47. Second screw hole; 48. First threaded clamping rod; 49. Transmission table; 410. Connecting guide roller; 411. Rectangular slot; 412. Third screw hole; 413. Rectangular clamping block; 414. Separator plate; 415. Connecting plate; 416. Fourth screw hole; 417. Second threaded clamping rod; 418. Third guide roller. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1 to 10 The present invention provides a technical solution:

[0040] A CNC metal sheet shearing machine, comprising:

[0041] Base 1;

[0042] Anti-loosening unwinding structure 2 is set on the top of base 1. Anti-loosening unwinding structure 2 includes mounting base 22. The bottom of mounting base 22 is fixedly connected to the top of base 1. A first motor 23 is installed on one side of mounting base 22. A transmission rod 24 is installed at the output end of the first motor 23. One end of transmission rod 24 is fixedly connected to unwinding roller 25.

[0043] The conductive shaping structure 3 is disposed on the top of the base 1. The conductive shaping structure 3 includes a first U-shaped frame 31. A first guide roller 32 and a second guide roller 33 are rotatably disposed on the inner surface of the first U-shaped frame 31. The first guide roller 32 and the second guide roller 33 are disposed flush with each other.

[0044] Cutting and dividing structure 4 is set on the top of base 1. Cutting and dividing structure 4 includes a second U-shaped frame 41. The bottom of the second U-shaped frame 41 is fixedly connected to the top of base 1.

[0045] Under the action of the anti-loosening unwinding structure 2, the metal coil and the unwinding roller 25 are tightly bonded, preventing the metal coil and the unwinding roller 25 from separating due to loosening. At the same time, under the action of the limiting roller 21, the metal plate will adhere to the metal coil during the unwinding process and will not easily separate. Under the action of the first spring 217, the metal plate on the metal coil can still adhere to the metal coil for limiting as the unwinding thickness decreases. By setting the transmission shaping structure 3, while the first guide roller 32 and the auxiliary guide roller 34 are guiding, if the metal plate deforms at this time, the first guide roller 32 and the auxiliary guide roller 34 cannot adapt to the deformed metal plate and are prone to jamming. The fixed round rod 36 and the sliding cylinder 37 allow the deformed metal plate to drive the fixed round rod 36 to slide. The inner wall of the cylinder 37 slides, which assists in transmission and avoids jamming. At the same time, under the action of the third hydraulic telescopic rod 311, the second wheel frame 312 can be driven to move, so that the shaping roller 313 can cooperate with the second guide roller 33. This allows the metal plate passing between the shaping roller 313 and the second guide roller 33 to be flattened, which facilitates subsequent cutting. By setting the cutting separator structure 4, the distance between the two cutting blades 46 can be adjusted through the cooperation of the second screw hole 47 on the annular clamping plate 45 and the first screw hole 44 on the cutting roller 43, so that metal plates of different sizes can be cut. At the same time, under the action of the rectangular clamping block 413 and the rectangular clamping groove 411, the separator plate 414 can be adjusted and installed to fit the cutting blades 46, so that the cut cutting blades 46 can be separated and prevented from tangling.

[0046] refer to Figure 3 and Figure 4The anti-loosening unwinding structure 2 also includes a sliding rod 26 fixedly connected to one side of the unwinding roller 25, and an annular groove 27 is provided on one side of the mounting base 22. The sliding rod 26 is slidably connected to the inner wall of the annular groove 27.

[0047] By setting the sliding rod 26, the sliding rod 26 can drive the unwinding roller 25 to rotate along the annular groove 27, thereby supporting and guiding the unwinding roller 25.

[0048] refer to Figure 4 An installation plate 28 is fixedly connected to the inner wall of the unwinding roller 25. A first hydraulic telescopic rod 29 is installed on the top of the installation plate 28. A rectangular top block 211 is fixedly connected to the output end of the first hydraulic telescopic rod 29. A rectangular through hole 210 is opened on the top of the unwinding roller 25. An extrusion arc plate 212 is fixedly connected to the top of the rectangular top block 211.

[0049] By setting the first hydraulic telescopic rod 29, the rectangular top block 211 can be moved, which in turn can move the extrusion arc plate 212, so that the extrusion arc plate 212 can be attached and fixed to the metal coil.

[0050] refer to Figure 3 An L-shaped plate 213 is fixedly connected to the top of the mounting base 22. A second hydraulic telescopic rod 214 is installed at the bottom of the L-shaped plate 213. A first wheel frame 218 is fixedly connected to the output end of the second hydraulic telescopic rod 214. A limit roller 21 is rotatably provided inside the first wheel frame 218.

[0051] By setting a second hydraulic telescopic rod 214, the first wheel frame 218 can be driven to move, so that the limiting roller 21 can be attached to the metal plate on the metal coil.

[0052] refer to Figure 3 A sliding round rod 215 is fixedly connected to the top of the first wheel frame 218. The sliding round rod 215 is slidably disposed on the inner wall of the L-shaped plate 213. A round baffle 216 is fixedly connected to the top of the sliding round rod 215. A first spring 217 is sleeved on the outer surface of the sliding round rod 215. The two ends of the first spring 217 are fixedly connected to the round baffle 216 and the L-shaped plate 213 respectively.

[0053] The sliding rod 215 can slide on the inner wall of the L-shaped plate 213, and thus cooperate with the first spring 217 to allow the limiting roller 21 to fit against the metal coil.

[0054] refer to Figure 5 and Figure 7The conductive shaping structure 3 also includes auxiliary guide rollers 34 rotatably disposed on both sides of the first U-shaped frame 31. The outer surface of the auxiliary guide rollers 34 is provided with a plurality of circular grooves 35. A fixed round rod 36 is fixedly connected to the inner wall of the circular grooves 35. A sliding cylinder 37 is slidably connected to the top end of the fixed round rod 36. A circular connecting block 38 is fixedly connected to the top end of the sliding cylinder 37. A second spring 39 is sleeved on the outer surface of the fixed round rod 36. The two ends of the second spring 39 are fixedly connected to the outer surface of the sliding cylinder 37 and the inner wall of the circular grooves 35, respectively.

[0055] By setting the auxiliary guide roller 34, the circular connecting block 38 can be driven to rotate and be guided. At this time, the sliding cylinder 37 can be driven to slide on the outer surface of the fixed circular rod 36. In turn, it can cooperate with the second spring 39 so that the deformed metal plate can pass between the auxiliary guide roller 34 and the first guide roller 32 for auxiliary guidance.

[0056] refer to Figure 5 and Figure 7 The top of the first U-shaped frame 31 is fixedly connected to a U-shaped frame 310, the bottom of the U-shaped frame 310 is installed with a third hydraulic telescopic rod 311, the output end of the third hydraulic telescopic rod 311 is fixedly connected to a second wheel frame 312, a shaping roller 313 is rotatably connected between the two sides of the inner surface of the second wheel frame 312, and a limiting round rod 314 is fixedly connected to the top of the second wheel frame 312. The limiting round rod 314 is slidably disposed on the inner wall of the U-shaped frame 310.

[0057] By setting a third hydraulic telescopic rod 311, the second wheel frame 312 can be driven to move, which in turn can drive the shaping roller 313 to move, so that the shaping roller 313 cooperates with the second guide roller 33 to perform shaping.

[0058] refer to Figure 1 and Figure 9 Two third guide rollers 418 are rotatably arranged on both sides of the second U-shaped frame 41. The two third guide rollers 418 are aligned along the vertical direction, and the lower third guide roller 418 is flush with the first guide roller 32 and the second guide roller 33 in the horizontal direction.

[0059] By setting a third guide roller 418, the shaped metal plate can be guided so that it can be transported to the cutting blade 46 for cutting.

[0060] refer to Figure 8 and Figure 9A second motor 42 is installed on one side of the second U-shaped frame 41. A cutting roller 43 is fixedly connected to the output end of the second motor 42. Several sets of first screw holes 44 are opened on the outer surface of the cutting roller 43. Each set of first screw holes 44 has four holes. An annular clamping plate 45 is fitted on the outer surface of the cutting roller 43. A cutting blade 46 is fixedly connected to one side of the annular clamping plate 45. A second screw hole 47 is opened on the inner wall of the annular clamping plate 45. A first threaded clamping rod 48 is threadedly connected to the inner walls of the first screw hole 44 and the second screw hole 47.

[0061] By setting the annular retaining plate 45, which can be matched with the first screw hole 44, the distance between the cutting blades 46 can be adjusted, thereby allowing the metal plate to be cut into different sizes.

[0062] refer to Figure 8 and Figure 10 A transmission platform 49 is fixedly connected to one side of the second U-shaped frame 41. A connecting guide roller 410 is rotatably set at one edge of the transmission platform 49. A rectangular slot 411 is opened on the top of the transmission platform 49. A rectangular block 413 is engaged with the inner wall of the rectangular slot 411. A third screw hole 412 is opened on one side of the transmission platform 49. A connecting plate 415 is fixedly connected to one side of the rectangular block 413. A fourth screw hole 416 is opened on one side of the connecting plate 415. A second threaded rod 417 is threadedly connected to the inner walls of the third screw hole 412 and the fourth screw hole 416. A partition plate 414 is fixedly connected to the top of the rectangular block 413.

[0063] The rectangular card block 413 can be fixed to the rectangular card slot 411, and the position of the partition plate 414 can be adjusted according to the position of the cutting blade 46, so as to separate the cut metal plates and prevent them from tangling.

[0064] The overall working principle described above is as follows:

[0065] At this time, the inner wall of the metal coil with the metal plate is placed on the unwinding roller 25. At this time, one end of the metal plate is passed between the first guide roller 32 and the auxiliary guide roller 34, and between the second guide roller 33 and the shaping roller 313. At this time, the metal plate is passed between the third guide roller 418, and then the metal plate is cut by the cutting blade 46.

[0066] At this time, the first hydraulic telescopic rod 29 is activated, which can drive the rectangular top block 211 to move, and then drive the extrusion arc plate 212 to move, and then extrude and fix the inner wall of the metal coil. At this time, the second hydraulic telescopic rod 214 is activated, which can drive the first wheel frame 218 to move the limiting roller 21, so that the limiting roller 21 can fit and limit the metal plate on the metal coil.

[0067] At this time, the first motor 23 is started, so that the unwinding roller 25 can drive the metal roll to rotate, and then unwinding can be carried out. When the thickness of the metal roll decreases, the reaction force of the first spring 217 can drive the limiting roller 21 to fit with the metal roll.

[0068] Activate the third hydraulic telescopic rod 311 so that the second wheel frame 312 can drive the shaping roller 313 to fit against the metal plate. At this time, during the process of guiding the metal plate, the sliding cylinder 37 can slide on the outer surface of the fixed rod 36, which can then cooperate with the second spring 39 to deform, thereby adapting to the deformed metal plate. When the deformed metal plate passes through the shaping roller 313, it can be squeezed and flattened.

[0069] According to the requirements, adjust the position of the annular clamping plate 45, fix the first threaded clamping rod 48 with the first screw hole 44 and the second screw hole 47, and then fix the cutting blade 46. At this time, fix the rectangular clamping block 413 with the rectangular clamping groove 411. Then fix the second threaded clamping rod 417 with the third screw hole 412 and the fourth screw hole 416, and then the partition plate 414 can be separated.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CNC metal sheet shearing machine, characterized in that, include: Base (1); Anti-loosening unwinding structure (2), the anti-loosening unwinding structure (2) is set on the top of the base (1), the anti-loosening unwinding structure (2) includes a mounting base (22), the bottom of the mounting base (22) is fixedly connected to the top of the base (1), a first motor (23) is installed on one side of the mounting base (22), a transmission rod (24) is installed at the output end of the first motor (23), and an unwinding roller (25) is fixedly connected to one end of the transmission rod (24); Conductive shaping structure (3) is set on the top of base (1). The conductive shaping structure (3) includes a first U-shaped frame (31). A first guide roller (32) and a second guide roller (33) are rotatably arranged on the inner surface of the first U-shaped frame (31). The first guide roller (32) and the second guide roller (33) are flush. A cutting and separating structure (4) is provided on the top of the base (1). The cutting and separating structure (4) includes a second U-shaped frame (41), the bottom of which is fixedly connected to the top of the base (1).

2. The CNC metal sheet shearing machine according to claim 1, characterized in that: The anti-loosening unwinding structure (2) also includes a sliding rod (26) fixedly connected to one side of the unwinding roller (25), and an annular groove (27) is provided on one side of the mounting base (22), and the sliding rod (26) is slidably connected to the inner wall of the annular groove (27).

3. The CNC metal sheet shearing machine according to claim 1, characterized in that: An mounting plate (28) is fixedly connected to the inner wall of the unwinding roller (25). A first hydraulic telescopic rod (29) is installed on the top of the mounting plate (28). A rectangular top block (211) is fixedly connected to the output end of the first hydraulic telescopic rod (29). A rectangular through hole (210) is opened on the top of the unwinding roller (25). An extrusion arc plate (212) is fixedly connected to the top of the rectangular top block (211).

4. A CNC metal sheet shearing machine according to claim 1, characterized in that: The top of the mounting base (22) is fixedly connected to an L-shaped plate (213), and the bottom of the L-shaped plate (213) is provided with a second hydraulic telescopic rod (214). The output end of the second hydraulic telescopic rod (214) is fixedly connected to a first wheel frame (218), and the inside of the first wheel frame (218) is provided with a limit roller (21).

5. A CNC metal sheet shearing machine according to claim 4, characterized in that: A sliding round rod (215) is fixedly connected to the top of the first wheel frame (218). The sliding round rod (215) is slidably disposed on the inner wall of the L-shaped plate (213). A round baffle (216) is fixedly connected to the top of the sliding round rod (215). A first spring (217) is sleeved on the outer surface of the sliding round rod (215). The two ends of the first spring (217) are fixedly connected to the round baffle (216) and the L-shaped plate (213) respectively.

6. A CNC metal sheet shearing machine according to claim 1, characterized in that: The conductive shaping structure (3) also includes auxiliary guide rollers (34) rotatably disposed on both sides of the first U-shaped frame (31). The outer surface of the auxiliary guide rollers (34) is provided with a plurality of circular grooves (35). A fixed round rod (36) is fixedly connected to the inner wall of the circular grooves (35). A sliding cylinder (37) is slidably connected to the top end of the fixed round rod (36). A circular connecting block (38) is fixedly connected to the top end of the sliding cylinder (37). A second spring (39) is sleeved on the outer surface of the fixed round rod (36). The two ends of the second spring (39) are fixedly connected to the outer surface of the sliding cylinder (37) and the inner wall of the circular grooves (35), respectively.

7. A CNC metal sheet shearing machine according to claim 1, characterized in that: A U-shaped frame (310) is fixedly connected to the top of the first U-shaped frame (31), and a third hydraulic telescopic rod (311) is installed at the bottom of the U-shaped frame (310). A second wheel frame (312) is fixedly connected to the output end of the third hydraulic telescopic rod (311). A shaping roller (313) is rotatably connected between the two sides of the inner surface of the second wheel frame (312). A limiting round rod (314) is fixedly connected to the top of the second wheel frame (312), and the limiting round rod (314) is slidably disposed on the inner wall of the U-shaped frame (310).

8. A CNC metal sheet shearing machine according to claim 1, characterized in that: The second U-shaped frame (41) has two third guide rollers (418) rotatably arranged on both sides. The two third guide rollers (418) are aligned in the vertical direction. The lower third guide roller (418) is flush with the first guide roller (32) and the second guide roller (33) in the horizontal direction.

9. A CNC metal sheet shearing machine according to claim 1, characterized in that: A second motor (42) is installed on one side of the second U-shaped frame (41). A cutting roller (43) is fixedly connected to the output end of the second motor (42). Several sets of first screw holes (44) are opened on the outer surface of the cutting roller (43). The number of first screw holes (44) in each set is four. An annular clamping plate (45) is sleeved on the outer surface of the cutting roller (43). A cutting blade (46) is fixedly connected to one side of the annular clamping plate (45). A second screw hole (47) is opened on the inner wall of the annular clamping plate (45). A first threaded clamping rod (48) is threadedly connected to the inner wall of the first screw hole (44) and the second screw hole (47).

10. A CNC metal sheet shearing machine according to claim 1, characterized in that: A transmission platform (49) is fixedly connected to one side of the second U-shaped frame (41). A connecting guide roller (410) is rotatably arranged at one edge of the transmission platform (49). A rectangular slot (411) is opened at the top of the transmission platform (49). A rectangular block (413) is engaged with the inner wall of the rectangular slot (411). A third screw hole (412) is opened on one side of the transmission platform (49). A connecting plate (415) is fixedly connected to one side of the rectangular block (413). A fourth screw hole (416) is opened on one side of the connecting plate (415). A second threaded rod (417) is threadedly connected to the inner walls of the third screw hole (412) and the fourth screw hole (416). A partition plate (414) is fixedly connected to the top of the rectangular block (413).

Images