A chain-type stainless steel mesh automatic production equipment

Abstract

This invention relates to an automated production equipment for chain-type stainless steel mesh, comprising a frame and a roller assembly. The roller assembly is mounted on the frame for conveying the stainless steel mesh. A pushing device is mounted on the frame and located on one side of the roller assembly for pushing stainless steel rods. A clamping device is located on the other side of the roller assembly for clamping the stainless steel rods. A bending device is located on one side of the clamping device for bending the clamped stainless steel rods. A rounding device is arranged opposite to the clamping device for connecting the bent stainless steel rods into a chain of movable links. The automated production equipment for chain-type stainless steel mesh provided by this invention clamps the stainless steel rods with the clamping device, and then uses the bending and rounding devices to shape the stainless steel rods into a U-shape, forming a chain-type stainless steel mesh. The overall structure is simple, the processing efficiency is high, and the automated production of chain-type stainless steel mesh is achieved, reducing costs and the labor intensity of operators.

Description

Technical Field

[0001] This invention relates to a stainless steel mesh production equipment, and more particularly to a chain-type automatic stainless steel mesh production equipment. Background Technology

[0002] There are many types of stainless steel mesh. The most common type on the market is small-diameter stainless steel mesh, which is basically produced automatically. The diameter of this type of stainless steel mesh is usually less than 1mm. For stainless steel mesh with a diameter of more than 5mm, especially chain-type stainless steel mesh, it is currently mainly manufactured manually. Manual processing is inefficient, labor-intensive, and costly. Summary of the Invention

[0003] To address the above problems, this invention provides an automated production equipment for large-diameter, chain-type stainless steel mesh, characterized by high production efficiency and low cost. The specific technical solution is as follows:

[0004] An automatic production equipment for chain-type stainless steel mesh includes a frame, and further includes: a roller device mounted on the frame for conveying stainless steel mesh; a pushing device mounted on the frame and located on one side of the roller device for pushing stainless steel round rods; a clamping device located on the other side of the roller device for clamping the stainless steel round rods; a bending device located on one side of the clamping device for bending the clamped stainless steel round rods; and a rounding device arranged opposite to the clamping device for connecting the bent stainless steel round rods into interlocking chain links.

[0005] By adopting the above technical solution, the roller device realizes the conveying of stainless steel mesh, which facilitates continuous bending, while the pushing device conveniently pushes the stainless steel round rod to the bending station, the clamping device clamps the stainless steel round rod, and then the bending device bends the end of the stainless steel round rod, and then the bending device bends it into a chain link, realizing continuous bending, improving processing efficiency, and reducing labor intensity and cost.

[0006] Preferably, the roller assembly includes: a front roller assembly for moving the stainless steel mesh; and a rear roller assembly for tensioning the stainless steel mesh; the pusher is located between the front roller assembly and the rear roller assembly.

[0007] By adopting the above technical solutions, the front roller assembly and the rear roller assembly achieve tensioning of the stainless steel mesh, which facilitates the pushing of the stainless steel round rod and ensures reliable and stable processing.

[0008] Furthermore, it also includes: a feeding stop roller assembly, which is located on one side of the front roller assembly and the rear roller assembly; and a bending stop roller assembly, which is located on the other side of the front roller assembly and the rear roller assembly.

[0009] By adopting the above technical solutions, the upper stop wheel assembly and the bending stop wheel assembly facilitate the positioning of the stainless steel mesh, prevent skewing, and ensure that the stainless steel round rod is perpendicular to the clamping device.

[0010] Preferably, the pushing device includes: a pushing frame, which is mounted on the machine frame; a pushing cylinder, which is fixed on the pushing frame; and a pushing rod, which is fixed on the pushing cylinder and is arranged opposite to the clamping device for pushing the stainless steel round rod to the clamping device.

[0011] By adopting the above technical solution, which uses a cylinder to push the material, the structure is simple and the control is convenient.

[0012] Preferably, the clamping device includes: an upper clamping block, which is slidably mounted on the upper bending baffle at the top of the frame, and the upper clamping block is provided with an upper clamping groove; a lower clamping block, which is slidably mounted on the lower bending baffle at the top of the frame, and the lower clamping block is provided with a lower clamping groove, and the lower clamping block is disposed opposite to the upper clamping block; and a clamping driving device, which is connected to the upper clamping block and the lower clamping block respectively, for driving the upper clamping block and the lower clamping block to clamp the stainless steel round rod.

[0013] By adopting the above technical solution, the upper and lower clamping method does not affect the feeding of stainless steel, and at the same time, it is convenient to clamp and makes the structure compact.

[0014] Furthermore, the clamping drive device includes: an upper rack connected to the upper clamping block; a lower rack connected to the lower clamping block and arranged parallel to the upper rack; clamping gears meshing with the upper rack and the lower rack respectively; and a clamping motor mounted on the frame and connected to the clamping gears.

[0015] By adopting the above technical solution, a single motor drives the upper and lower clamping blocks to clamp the material, resulting in a simple structure, convenient control, and reduced equipment cost.

[0016] Furthermore, both the upper clamping block and the lower clamping block are provided with bending inclined surfaces, which are arranged opposite to the bending device.

[0017] By adopting the above technical solution, the bending is tilted inward towards the stainless steel mesh, which can increase the density of the stainless steel mesh, achieve shaping, and ensure the bending effect.

[0018] Preferably, the bending device includes: a bending frame fixed on the machine frame; a bending rod slidably mounted on the bending frame; a bending roller rotatably mounted on the end of the bending rod and disposed opposite to the clamping device; and a bending drive assembly mounted on the bending frame and connected to the bending rod for driving the bending roller to bend the stainless steel round rod.

[0019] By adopting the above technical solution, bending is achieved through bending rollers, which reduces the bending force and makes bending smoother. At the same time, it can protect the surface of the stainless steel round rod and prevent large scratches caused by bending.

[0020] Furthermore, the bending drive assembly includes: a bending rack slidably mounted on the bending frame, and a bending rod fixed on the bending rack; a bending gear meshing with the bending rack; and a bending motor mounted on the bending frame and connected to the bending gear.

[0021] By adopting the above technical solution, using a gear and rack structure, the drive is simple, the cost is low, the operation is reliable, the bending speed is adjustable, and the movement distance of the bending roller is easy to control.

[0022] Preferably, the bending device includes: a bending base plate mounted on the frame; a bending slide plate slidably mounted on the bending base plate; a bending seat mounted on the bending slide plate, the bending seat having an arc-shaped bending groove; a bending roller movably inserted into the bending groove; a bending drive plate, the bending roller rotatably mounted on the bending drive plate; a bending motor mounted on the bending seat and connected to the bending drive plate; a bending shaft fixed on the bending seat and coaxial with the bending groove; a bending block fixed on the bending seat and located on one side of the bending groove, used to fix the stainless steel rod; and a moving component connected to the frame and the bending slide plate respectively.

[0023] By adopting the above technical solution, the bending roller, in conjunction with the bending shaft and bending block, enables the bending of the stainless steel rod. The bending roller reduces friction, making the bending smoother, while also preventing scratches on the surface of the stainless steel rod, thus improving the surface quality of the product.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides an automatic production equipment for chain stainless steel mesh. The equipment clamps stainless steel round rods with a clamping device, and then uses a bending device and a rounding device to form a U-shape to form a chain stainless steel mesh. The overall structure is simple and the processing efficiency is high. It realizes the automatic production of chain stainless steel mesh, reduces costs and the labor intensity of operators. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram from the first perspective of an automated production equipment for chain-type stainless steel mesh.

[0027] Figure 2 This is a structural schematic diagram of an automated chain stainless steel mesh production equipment from a second perspective.

[0028] Figure 3 This is a top view of an automated chain stainless steel mesh production equipment.

[0029] Figure 4 This is an assembly diagram of the clamping device, bending device, and rounding device;

[0030] Figure 5 yes Figure 4 Top view;

[0031] Figure 6 This is a schematic diagram of the bending device;

[0032] Figure 7 This is a front view of the bending device;

[0033] Figure 8 This is a schematic diagram of the bending device;

[0034] Figure 9 This is a front view of the bending device;

[0035] Figure 10 This is a schematic diagram of the lower clamping block;

[0036] Figure 11 This is a schematic diagram of the feeding device. Detailed Implementation

[0037] The present invention will now be further described with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figures 1 to 11As shown, an automatic production equipment for chain-type stainless steel mesh includes a frame 11, a roller device, a pushing device 3, a clamping device 41, a bending device 42, and a rounding device 43, all mounted on the frame 11. The roller device is used to convey stainless steel mesh 92; the pushing device 3 is located on one side of the roller device and is used to push stainless steel round rods 91; the clamping device 41 is located on the other side of the roller device and is used to clamp the stainless steel round rods 91; the bending device 42 is located on one side of the clamping device 41 and is used to bend the clamped stainless steel round rods 91; the rounding device 43 is arranged opposite to the clamping device 41 and is used to connect the bent stainless steel round rods 91 into a chain link.

[0040] Specifically, one end of the top of the frame 11 is provided with an upper bending baffle 14, a lower bending baffle 15, and a bending connecting plate 13. The bending connecting plate 13 is fixed to both sides of the frame 11 and is symmetrically arranged. A bending material groove 131 is provided on the bending connecting plate 13. The two ends of the upper bending baffle 14 and the lower bending baffle 15 are respectively fixed on the two bending connecting plates 13 and are located above and below the bending material groove 131, respectively. A bending groove 10 is formed between the upper bending baffle 14 and the lower bending baffle 15. The bending groove 10 communicates with the bending material groove 131 and is used to pass through the chain stainless steel mesh 92. The other end of the top of the frame 11 is provided with a roller seat 12, which is arranged opposite to the upper bending baffle 14 and the lower bending baffle 15.

[0041] like Figures 1 to 3As shown, the roller assembly includes a front roller assembly, a rear roller assembly, a feeding stop roller assembly, and a bending stop roller assembly. The front roller assembly is used to move the stainless steel mesh 92 and includes an upper front roller 21, a lower front roller 22, and a front roller motor 23. The two ends of the upper front roller 21 are rotatably mounted on the roller seat 12 and the upper bending stop plate 14, respectively. The two ends of the lower front roller 22 are rotatably mounted on the roller seat 12 and the lower bending stop plate 15, respectively. The front roller motor 23 is mounted on the frame 11 and connected to the lower front roller 22. The rear roller assembly is used to tension the stainless steel mesh 92. The rear roller assembly includes an upper rear roller 24, a lower rear roller, and a magnetic powder brake 26. The two ends of the upper rear roller 24 are rotatably mounted on the roller seat 12 and the upper bending baffle 14, respectively. The two ends of the lower rear roller are rotatably mounted on the roller seat 12 and the lower bending baffle 15, respectively. The magnetic powder brake 26 is mounted on the roller seat 12 and connected to the lower rear roller to provide tension. The bending stop roller assembly includes a bending stop roller 29 and a bending stop frame 20. The bending stop frame 20 is fixed to the bending connecting plate 13, and the bending stop roller 29 is rotatably mounted on the bending stop frame 20. The bending stop roller assembly is symmetrically located on both sides of the bending groove 10 to limit the position of the stainless steel mesh 92 within the bending groove 10. The feeding stop roller assembly includes a feeding stop roller 27 and a feeding stop frame 28. The feeding stop frame 28 is fixed on the top of the frame 11 and is arranged opposite to the bending stop frame 20. The feeding stop roller 27 is rotatably mounted on the feeding stop frame 28 and is located on one side of the front roller assembly and the rear roller assembly, respectively, to limit the position of the stainless steel mesh 92.

[0042] like Figure 11 As shown, the pushing device 3 is located between the front roller assembly and the rear roller assembly, and is opposite to the bending upper baffle 14. The pushing device 3 includes a pushing frame 31, a pushing cylinder 32, and a pushing rod 33. The pushing frame 31 is mounted on the frame 11 and is located between the two roller seats 12. The pushing cylinder 32 is mounted on one end of the pushing frame 31 via a pushing bracket 37. The pushing rod 33 is fixed to the piston rod of the pushing cylinder 32. The pushing rod 33 is provided with a pushing groove 331, and the stainless steel round rod 91 is movably inserted into the pushing groove 331. The pushing cylinder 32 is a double-shaft cylinder, which facilitates limiting the position of the pushing groove 331. The pushing rod 33 is also opposite to the clamping device 41 and is used to push the stainless steel round rod 91 to the clamping device 41. The other end of the pushing frame 31 is provided with a support frame 34, which is used to support the stainless steel mesh 92, thereby ensuring that the stainless steel round rod 91 can be accurately inserted into the pushing groove 331.

[0043] like Figure 4 and Figure 5As shown, the clamping device 41 includes an upper clamping block 418, a lower clamping block 419, and a clamping drive device. The upper clamping block 418 is mounted on an upper clamping plate 411, which is slidably mounted on the upper bending baffle 14 via a linear guide pair and moves vertically. The upper clamping block 418 has an upper clamping groove 4181. The lower clamping block 419 is mounted below a lower clamping plate 412, which is slidably mounted below the lower bending baffle 15 via a linear guide pair and moves vertically. The lower clamping block 419 has a lower clamping groove 4191. The upper clamping groove 4181 and the lower clamping groove 4191 are arranged opposite each other and are used to clamp the stainless steel round rod 91. The upper clamping groove 4181 and the lower clamping groove 4191 are symmetrically arranged and can be arc-shaped or V-shaped grooves. The clamping drive device includes an upper rack 413, a lower rack 414, a clamping gear 415, and a clamping motor 416. The upper rack 413 is fixed to the upper clamping plate 411 and is vertically arranged. The lower rack 414 is fixed to the lower clamping plate 412 and is vertically arranged. The upper rack 413 and the lower rack 414 are arranged parallel to each other and are located on both sides of the clamping gear 415. The clamping gear 415 meshes with the upper rack 413 and the lower rack 414 and is mounted on the clamping motor 416. The clamping motor 416 is mounted on the top of the frame 11 via a motor plate 417. When the clamping gear 415 rotates, it drives the upper rack 413 to descend and the lower rack 414 to rise, thereby enabling the upper clamping block 418 and the lower clamping block 419 to close and clamp the stainless steel round rod 91.

[0044] like Figure 6 and Figure 7 As shown, the bending device 42 includes a bending frame 421, a bending slide plate 427, a bending rod 425, a bending roller 426, and a bending drive assembly. The bending frame 421 is fixed to the top of the frame 11 and is located on one side of the lower clamping block 419. A bending base plate 428 is provided on the bending frame 421. The bending slide plate 427 is slidably mounted on the bending base plate 428 through a linear guide pair. The bending rod 425 is mounted on the bending slide plate 427. The bending roller 426 is rotatably mounted on the end of the bending rod 425 and is arranged opposite to the upper clamping block 418 and the lower clamping block 419. The bending drive assembly includes a bending rack 424, a bending gear 423, and a bending motor 422. The bending rack 424 is fixed to the bending slide plate 427 and meshes with the bending gear 423. The bending gear 423 is mounted on the bending motor 422, which is mounted on the top of the bending frame 421 and is used to drive the bending roller 426 to bend the stainless steel round rod 91. The bending base plate 428 is used to adjust the position of the bending roller 426.

[0045] like Figure 8 and Figure 9As shown, the bending device 43 includes a bending base plate 436, a bending slide plate 435, a bending seat 432, bending rollers 433, a bending drive plate, a bending motor 431, a bending shaft 438, a bending block 434, and a moving assembly. The bending base plate 436 is mounted on the top of the frame 11 via a threaded rod 438, which facilitates height adjustment. The bending slide plate 435 is slidably mounted on the bending base plate 436 via a linear guide pair. The moving assembly, which is a bending cylinder or a bending linear module, is mounted on the frame 11 and connected to the bending slide plate 435 via a drive linkage 437, used to drive the bending device 43 to reciprocate. A bending seat 432 is mounted on a bending slide plate 435. The bending seat 432 has an arc-shaped bending groove 4321. A bending motor 431 is mounted on the bending seat 432 and connected to a bending drive plate. The bending drive plate is located inside the bending seat 432. A bending roller 433 is rotatably mounted on the bending drive plate and is movably inserted into the bending groove 4321. A bending shaft 438 is fixed on the center line of the bending seat 432. The bending groove 4321 is coaxial with the bending shaft 438. A bending block 434 is fixed on the bending seat 432 and located on one side of the bending groove 4321. It is used to fix the stainless steel rod 91.

[0046] During operation, the front roller assembly drives the stainless steel mesh 92 to move, and the rear roller assembly tightens the stainless steel mesh 92, thereby achieving the tension of the stainless steel mesh 92, which facilitates the bending of the stainless steel round rod 91. The stainless steel round rod 91 is movably inserted on the chain link, and the stainless steel mesh 92 is located in the bending groove 10. During bending, the pusher cylinder 32 is activated, pushing the stainless steel rod to the upper clamping block 418 and lower clamping block 419 via the pusher rod 33, and then retracting. The stainless steel round rod 91 extends from the stainless steel mesh 92 to the set length. Then, the clamping motor 416 is activated, driving the upper clamping block 418 and lower clamping block 419 to move relative to each other and press together via the clamping gear 415, upper rack 413, and lower rack 414. At this time, the stainless steel round rod 91 is located in the upper clamping groove 4181 and lower clamping groove 4191, and is clamped by the upper clamping block 418 and lower clamping block 419. Then, the bending motor 422 is activated, driving the bending rod 425 towards the clamped stainless steel round rod via the bending gear 423 and bending rack 424. 91 moves, bending roller 426 pushes stainless steel rod 91 along the surface of upper clamping block 418 and lower clamping block 419 to bend stainless steel rod 91, so that the end of stainless steel rod 91 is bent at 90 degrees and is in a horizontal state. Then, the moving cylinder drives the bending seat 432 to move to the bent stainless steel rod 91. Stainless steel rod 91 is stuck between bending shaft 438 and bending block 434. Then, bending motor 431 drives bending roller 433 to move along bending groove 4321. Bending roller 433 pushes stainless steel rod 91 to rotate around bending shaft 438, bending stainless steel rod 91 into chain ring, that is, U-shape. Then bending motor 431 reverses, bending roller 433 resets. Then the moving cylinder drives bending seat 432 to leave the bent chain ring.

[0047] Example 2

[0048] Based on the above embodiment 1, in order to increase the density of the stainless steel mesh 92, both the upper clamping block 418 and the lower clamping block 419 are provided with bending inclined surfaces 410, which are arranged opposite to the bending device 42. The bending rod 425 is inclined and used to bend the chain link inwards towards the stainless steel mesh 92. The bending rod 425 is parallel to the bending inclined surface 410, that is, the bending rod 425 is not parallel to the bending upper baffle 14, so that the bending rod 425 and the stainless steel round rod 91 are not perpendicular to each other, but form an angle of less than 90 degrees. When bending the end of the stainless steel round rod 91, the stainless steel round rod 91 can be bent inwards towards the stainless steel mesh 92. After bending, the bent chain link can be bent again to bend the chain link inwards towards the stainless steel mesh 92. At the same time, the secondary bending can also shape the chain link and make it flat.

[0049] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the claims of the present invention.

Claims

1. A method for processing chain-type stainless steel mesh, employing an automatic production equipment for chain-type stainless steel mesh, including a frame (11), characterized in that, Also includes: A roller assembly, which is mounted on the frame (11), is used to convey stainless steel mesh (92). The pushing device (3) is installed on the frame (11) and located on one side of the roller device for pushing stainless steel round rods (91). Clamping device (41), located on the other side of the roller device, is used to clamp stainless steel round rod (91). A bending device (42), located on one side of the clamping device (41), is used to bend the clamped stainless steel rod (91); and A bending device (43) is arranged opposite to the clamping device (41) and is used to connect the bent stainless steel rod (91) to each other via a chain link. The roller assembly includes a front roller assembly and a rear roller assembly; The pushing device includes a pushing frame, a pushing cylinder, and a pushing rod; the pushing device is located between the front roller assembly and the rear roller assembly; The clamping device includes an upper clamping block, a lower clamping block, and a clamping drive device; Both the upper and lower clamping blocks are provided with bending inclined surfaces, which are arranged opposite to the bending device. The bending rod is set parallel to the bending slope, and the bending device includes a bending frame, bending rod, bending roller and bending drive assembly; The processing method includes the following steps: During operation, the front roller assembly drives the stainless steel mesh to move, and the rear roller assembly tightens the stainless steel mesh to achieve tension. The stainless steel round rod is movably inserted into the chain link. When bending, the pusher cylinder is activated. The pusher cylinder pushes the stainless steel rod to the upper clamping block and the lower clamping block through the pusher rod. After the stainless steel rod extends out of the stainless steel mesh to the set length, it is clamped by the upper clamping block and the lower clamping block. The bending drive assembly drives the bending rod to move towards the clamped stainless steel rod, and the bending roller pushes the stainless steel rod along the surface of the upper clamping block and the lower clamping block to bend the stainless steel rod. The bending rod of the bending device is inclined so that the bending rod and the stainless steel round rod are not perpendicular to each other, so that when bending the end of the stainless steel round rod, the stainless steel round rod can be bent into the stainless steel mesh. The bending device bends a stainless steel rod into a chain ring, or U-shape. After bending, the bending device performs a second bending of the bent chain link, causing the chain link to bend inwards towards the stainless steel mesh; this shapes the chain link, making it flat.

2. The processing method of a chain-type stainless steel mesh according to claim 1, characterized in that, The roller assembly includes: A front roller assembly for moving the stainless steel mesh (92); and Rear roller assembly, the rear roller assembly being used to tension the stainless steel mesh (92). The feeding device (3) is located between the front roller assembly and the rear roller assembly.

3. The processing method of a chain-type stainless steel mesh according to claim 2, characterized in that, Also includes: A feeding stop roller assembly, wherein the feeding stop roller assembly is located on one side of the front roller assembly and the rear roller assembly; and A bending stop roller assembly, which is located on the other side of the front roller assembly and the rear roller assembly.

4. The processing method of a chain-type stainless steel mesh according to claim 1, characterized in that, The feeding device (3) includes: A pusher (31) is mounted on the frame (11); A pusher cylinder (32), said pusher cylinder (32) being fixed on the pusher frame (31); and Push rod (33), which is fixed on the push cylinder (32) and is arranged opposite to the clamping device (41), is used to push the stainless steel round rod (91) to the clamping device (41).

5. The processing method of a chain-type stainless steel mesh according to claim 1, characterized in that, The clamping device (41) includes: Upper clamping block (418) is slidably mounted on the bent upper baffle (14) at the top of the frame (11), and the upper clamping block (418) is provided with an upper clamping groove (4181). A lower clamping block (419) is slidably mounted on a bent lower baffle (15) at the top of the frame (11). The lower clamping block (419) is provided with a lower clamping groove (4191). The lower clamping block (419) is positioned opposite to the upper clamping block (418). A clamping drive device is connected to the upper clamping block (418) and the lower clamping block (419) respectively, and is used to drive the upper clamping block (418) and the lower clamping block (419) to clamp the stainless steel round rod (91).

6. The processing method of a chain-type stainless steel mesh according to claim 5, characterized in that, The clamping drive device includes: Upper rack (413), which is connected to the upper clamping block (418); The lower rack (414) is connected to the lower clamping block (419) and is arranged parallel to the upper rack (413); A clamping gear (415), which meshes with the upper rack (413) and the lower rack (414) respectively; and A clamping motor (416) is mounted on the frame (11) and connected to the clamping gear (415).

7. A method for processing a chain-type stainless steel mesh according to any one of claims 1 to 6, characterized in that, The bending device (42) includes: A bending frame (421) is fixed on the frame (11); A bending rod (425) is slidably mounted on the bending frame (421); A bending roller (426) is rotatably mounted on the end of the bending rod (425) and is disposed opposite to the clamping device (41); and A bending drive assembly is mounted on the bending frame (421) and connected to the bending rod (425) for driving the bending roller (426) to bend the stainless steel round rod (91).

8. A method for processing a chain-type stainless steel mesh according to claim 7, characterized in that, The bending drive assembly includes: A bending rack (424) is slidably mounted on the bending frame (421), and a bending rod (425) is fixed on the bending rack (424). A bent gear (423) meshes with a bent rack (424); and A bending motor (422) is mounted on the bending frame (421) and connected to the bending gear (423).

9. A method for processing a chain-type stainless steel mesh according to any one of claims 1 to 6, characterized in that, The bending device (43) includes: A curved sliding plate (435) is slidably mounted on the frame (11); A curved circular seat (432) is mounted on the curved circular slide plate (435), and the curved circular seat (432) is provided with an arc-shaped curved circular groove (4321). A curved roller (433) is movably inserted into the curved groove (4321); A bending drive plate, wherein the bending roller (433) is rotatably mounted on the bending drive plate; A bending motor (431) is mounted on the bending seat (432) and connected to the bending drive plate; A curved shaft (438) is fixed on the curved seat (432) and is coaxial with the curved groove (4321); A curved block (434) is fixed on the curved seat (432) and located on one side of the curved groove (4321) for fixing the stainless steel rod (91); and The moving component is connected to the frame (11) and the curved slide plate (435) respectively.

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