An efficient stainless steel wire drawing device and wire drawing process

Abstract

The present invention discloses an efficient stainless steel wire drawing device, which includes an operation main body. The operation main body includes a base. A track is fixedly connected to the top of the base through a frame, and a wire drawing part. The wire drawing part includes a channel box. An annular slide plate that fits against the inner wall of the track is fixedly connected to the outer surface of the channel box through a connecting rod, and a toothed ring is fixedly connected to the outer surface of the annular slide plate. A servo unit that can be used to drive the toothed ring to rotate intermittently is fixedly connected to the top of the base. The present invention relates to the technical field of stainless steel wire drawing. This efficient stainless steel wire drawing device and wire drawing process can effectively solve the problem in the prior art that when a stainless steel wire drawing machine is used, operators generally first horizontally place a stainless steel plate on a grinding belt, and then through the cooperation of the grinding belt and the wire drawing wheel, the wire drawing treatment of the upper surface of the stainless steel plate is realized. For the other side of the stainless steel plate, secondary wire drawing is required, which is time-consuming and laborious and has low efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of stainless steel wire drawing, and particularly relates to an efficient stainless steel wire drawing device and a wire drawing process. Background Art

[0002] Stainless steel wire drawing is widely used in production and life. Stainless steel wire drawing can endow products with a unique visual appearance. After the stainless steel plate undergoes surface wire drawing and various process treatments, rich appearance effects can be obtained. Secondly, the stainless steel plate with surface wire drawing can have various surface roughnesses and texture effects to meet the usage requirements of different occasions.

[0003] The working principle of a stainless steel wire drawing machine is actually the same as that of a rust removal machine. It drives a wire rope or a thousand - leaf wheel to rotate through a motor, continuously grinding the surface of the material to achieve the effect of rust removal or wire drawing. For the existing stainless steel wire drawing machines, operators generally first place the stainless steel plate horizontally on the grinding belt, and then through the cooperation of the grinding belt and the wire drawing wheel, the wire drawing treatment of the upper surface of the stainless steel plate is realized. For the other side of the stainless steel plate, secondary wire drawing is required, which is time - consuming and laborious, with low efficiency, and is also prone to damaging the surface of the first wire drawing. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] Aiming at the above - mentioned disadvantages of the existing technology, the present invention provides an efficient stainless steel wire drawing device and a wire drawing process, which can effectively solve the problems in the existing technology that when using a stainless steel wire drawing machine, operators generally first place the stainless steel plate horizontally on the grinding belt, and then through the cooperation of the grinding belt and the wire drawing wheel, the wire drawing treatment of the upper surface of the stainless steel plate is realized. For the other side of the stainless steel plate, secondary wire drawing is required, which is time - consuming and laborious, with low efficiency.

[0006] Technical Solutions

[0007] To achieve the above purposes, the present invention is realized through the following technical solutions:

[0008] The present invention provides an efficient stainless steel wire drawing device, including:

[0009] An operation main body, the operation main body includes a base, and a track is fixedly connected to the top of the base through a frame;

[0010] A wire drawing part, the wire drawing part includes a channel box, an annular slide plate that is fixedly connected to the outer surface of the channel box through a connecting rod and fits with the inner wall of the track, and a toothed ring is fixedly connected to the outer surface of the annular slide plate. A servo unit that can be used to drive the toothed ring to rotate intermittently is fixedly connected to the top of the base. A wire drawing member that can be used to draw the external stainless steel plate is arranged inside the channel box, and there are two such wire drawing members.

[0011] Further, it further includes a collection part, the collection part includes a waste box, the outer surface of the waste box is fixedly connected to the outer surface of the channel box, a waste opening communicating with the inside of the channel box is formed in the inner wall of the channel box, and an inclined plate is fixedly connected to the inner wall of the waste box.

[0012] Further, a support rod connected to the outer surface of the inclined plate is arranged at the bottom of the inner wall of the waste box, a lifting plate is slidably connected to the outer circumference of the support rod, a triangular plate fitting the side surface of the inclined plate is fixedly connected to the outer surface of the lifting plate, and a strong spring connected to the inner wall of the waste box is arranged on one side of the lifting plate away from the triangular plate.

[0013] Further, the wire drawing part includes a grooved annular belt, the inner wall of the grooved annular belt is closely attached to a driving wheel and a tensioning wheel rotatably connected to the inside of the channel box, and a driving wheel and a wire drawing wheel rotatably connected to the inside of the channel box are respectively arranged on one side of the grooved annular belt away from the waste opening.

[0014] Further, a correction rod fitting the outer surface of the external stainless steel plate is rotatably installed on the inner wall of the channel box through a bracket, there are two groups of driving wheels, two driving wheels are provided in each group and are symmetrically distributed with the external stainless steel plate as the center, and a driving unit drivingly connected to the end face of the driving wheel is fixedly connected to one side of the channel box away from the waste box.

[0015] Further, the wire drawing wheel is located between the driving wheel and the correction rod, a power box is fixedly connected to one side of the channel box close to the driving unit, and the inside of the power box is drivingly connected to the wire drawing wheel through a belt group, and the wire drawing wheel is directly above the waste opening.

[0016] A wire drawing process of an efficient stainless steel wire drawing device includes the following steps:

[0017] S1: Wire drawing the upper half of the stainless steel plate. First, vertically insert the stainless steel plate between adjacent driving wheels, and at the same time, the stainless steel plate drops into the previous group of grooved annular belts. The cooperation between the grooved annular belt and the driving wheel can drive the stainless steel plate to move forward smoothly, and the wire drawing wheel can wire draw both sides of the upper half of the stainless steel plate;

[0018] S2: Adjust the position of the stainless steel plate. When the wire drawing of the upper half of the stainless steel plate is completed, the servo unit drives the gear ring, the channel box, the wire drawing part and the stainless steel plate to perform intermittent movement synchronously. The single intermittent movement rotates 180 degrees, and the stainless steel plate drops into the next group of grooved annular belts;

[0019] S3: Wire drawing the lower half of the stainless steel plate. The cooperation between the next group of grooved annular belts and the next group of driving wheels can drive the stainless steel plate to move forward smoothly, and the wire drawing wheel wires draws both sides of the lower half of the stainless steel plate;

[0020] S4: Repeat S3 - S4 to perform the next wire drawing of the stainless steel plate.

[0021] Beneficial effects

[0022] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0023] The present invention is provided with an annular slide plate, a toothed ring and a wire drawing member. The stainless steel plate contacts the annular groove belt and the driving wheel. The driving wheel of the previous group clamps the stainless steel plate and drives the stainless steel plate to move forward at a uniform speed. At the same time, the bottom of the stainless steel plate is engaged in the groove annular belt. The groove annular belt not only plays a load-bearing role for the stainless steel plate, but also the groove annular belt can move forward synchronously with the stainless steel plate to avoid sliding friction between the two. When the stainless steel plate contacts the wire drawing wheel, the wire drawing wheel draws the two sides of the upper half of the stainless steel plate. The stainless steel plate disengages from the driving wheel of the previous group and enters between the adjacent calibration rods of the previous group. The calibration rods limit and fix it. When the stainless steel plate disengages from the calibration rods of the previous group, at this time the stainless steel plate is exactly located between the groove annular belt of the previous group and the groove annular belt of the next group. At the same time, the servo unit drives the toothed ring to rotate intermittently synchronously through the output gear, drives the annular slide plate to rotate 180 degrees around the track, and drives the wire drawing members of the previous group, the stainless steel plate and the wire drawing members of the next group to rotate 180 degrees synchronously. When the stainless steel plate contacts the wire drawing wheel of the next group, similarly, the wire drawing wheel starts to draw the lower half of the stainless steel plate. This application can draw the outer surfaces of both sides of the stainless steel plate synchronously, form the drawing in one step, save the trouble of secondary drawing, and will not damage the drawn outer surface of the stainless steel plate. Description of the drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is the wire drawing process flow chart of the stainless steel wire drawing equipment in the embodiment of the present invention;

[0026] Figure 2 It is the three-dimensional structure schematic diagram of the embodiment of the present invention;

[0027] Figure 3 It is the three-dimensional structure schematic diagram of the wire drawing part in the embodiment of the present invention;

[0028] Figure 4 It is the three-dimensional sectional structure schematic diagram of the channel box in the embodiment of the present invention;

[0029] Figure 5 For the embodiment of the present invention Figure 4Schematic diagram of the partially enlarged structure at position A in the [Chinese context];

[0030] Figure 6 Schematic diagram of the three - dimensional structure of the external stainless - steel plate, channel box, and wire - drawing part in the embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the three - dimensional state transformation structure of the external stainless - steel plate, channel box, and wire - drawing part in the embodiment of the present invention;

[0032] Figure 8 Schematic diagram of the three - dimensional structure of the collection part in the embodiment of the present invention.

[0033] The reference numerals in the figure respectively represent: 1. Operating body; 11. Base; 12. Track; 13. Servo unit; 2. Wire - drawing part; 21. Channel box; 211. Waste outlet; 22. Ring - shaped slide plate; 23. Tooth ring; 24. Wire - drawing part; 241. Grooved annular belt; 242. Driving wheel; 243. Tensioning wheel; 244. Driving wheel; 245. Wire - drawing wheel; 246. Calibration rod; 247. Driving unit; 248. Power box; 3. Collection part; 31. Waste bin; 32. Inclined plate; 33. Support rod; 34. Lifting plate; 35. Triangular plate; 36. Strong spring. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] Embodiment:

[0037] Please refer to Figures 2 - 8 , the present invention provides a technical solution: A high - efficiency stainless - steel wire - drawing device, comprising:

[0038] An operating body 1, the operating body 1 includes a base 11, and a track 12 is fixedly connected to the top of the base 11 through a frame;

[0039] The wire drawing part 2, the wire drawing part 2 includes a channel box 21. The outer surface of the channel box 21 is fixedly connected by a connecting rod with an annular slide plate 22 that fits against the inner wall of the track 12. And the outer surface of the annular slide plate 22 is fixedly connected with a toothed ring 23. The top of the base 11 is fixedly connected with a servo unit 13 that can be used to drive the toothed ring 23 to rotate intermittently. Inside the channel box 21, there is a wire drawing member 24 that can be used for wire drawing of an external stainless steel plate, and there are two such wire drawing members 24.

[0040] It further includes a collection part 3. The collection part 3 includes a waste box 31. The outer surface of the waste box 31 is fixedly connected with the outer surface of the channel box 21. The inner wall of the channel box 21 is provided with a waste port 211 that communicates with the inside of the channel box 21. The inner wall of the waste box 31 is fixedly connected with an inclined plate 32. During the wire drawing process of the wire drawing wheel 245, the generated waste falls onto the upper surface of the inclined plate 32 and falls into the lifting plate 34 and the waste box 31 along the inclined surface of the triangular plate 35, and finally is uniformly collected through the opening and closing door in the waste box 31.

[0041] At the bottom of the inner wall of the waste box 31, there is a support rod 33 connected to the outer surface of the inclined plate 32. The outer circumference of the support rod 33 is slidably connected with a lifting plate 34. The outer surface of the lifting plate 34 is fixedly connected with a triangular plate 35 that fits against the side surface of the inclined plate 32. On the side of the lifting plate 34 away from the triangular plate 35, there is a strong spring 36 connected to the inner wall of the waste box 31. When the whole collection part 3 rotates, the lifting plate 34 and the triangular plate 35 move towards the inclined plate 32 side under the influence of their own gravity. At this time, the side of the inclined plate 32 just engages at the connection between the lifting plate 34 and the triangular plate 35, and the triangular plate 35 closes the adjacent channels of the inclined plate 32, which can not only prevent the debris in the waste box 31 from leaking outwards, but also help the debris originally accumulated on the upper surface of the lifting plate 34 to quickly fall into the waste box 31.

[0042] The wire drawing member 24 includes a groove annular belt 241. The inner wall of the groove annular belt 241 is closely attached with a driving wheel 242 and a tensioning wheel 243 that are rotatably connected to the inside of the channel box 21. On the side of the groove annular belt 241 away from the waste port 211, there are respectively a driving wheel 244 and a wire drawing wheel 245 that are rotatably connected to the inside of the channel box 21.

[0043] The inner wall of the channel box 21 is rotatably installed through a bracket with a calibration rod 246 that fits against the outer surface of the external stainless steel plate. There are two sets of driving wheels 244, and each set of driving wheels 244 has two and is symmetrically distributed with the external stainless steel plate as the center. On the side of the channel box 21 away from the waste box 31, there is a driving unit 247 fixedly connected to the end face of the driving wheel 244 for transmission connection.

[0044] The drawing wheel 245 is located between the driving wheel 244 and the correction rod 246. A power box 248 is fixedly connected to the channel box 21 near the driving unit 247, and the inside of the power box 248 is connected to the drawing wheel 245 through a belt group. The drawing wheel 245 is located directly above the waste port 211, which is helpful for collecting waste.

[0045] refer to Figures 2 - 8 The working principle of stainless steel wire drawing machine is actually the same as that of rust removal machine. The motor drives the wire rope or the flap wheel to rotate, and continuously grinds the surface of the material to achieve the effect of rust removal or wire drawing. For the existing stainless steel wire drawing machine, the operator generally places the stainless steel plate horizontally on the grinding belt, and then realizes the wire drawing process on the surface of the stainless steel plate through the cooperation of the grinding belt and the wire drawing wheel. For the other side of the stainless steel plate, secondary wire drawing is required, which is time-consuming, labor-intensive, inefficient, and easy to damage the first wire drawing surface;

[0046] In order to overcome the above-mentioned defects, the present invention designs a high-efficiency stainless steel wire drawing equipment.

[0047] Brushed upper part of stainless steel plate (vertically placed):

[0048] First, the stainless steel plate is placed vertically, which is different from the traditional stainless steel plate placed horizontally on the grinding belt. Then the stainless steel plate contacts the grooved annular belt 241 and the driving wheel 244 (the wire drawing pieces 24 in the channel box 21 of the present application are provided with two groups, front and rear, and the installation directions of the front and rear wire drawing pieces 24 are opposite). The driving wheel 244 of the front group clamps the stainless steel plate and is driven by the driving unit 247 to rotate. The driving wheel 244 drives the stainless steel plate to move forward at a uniform speed. At the same time, the bottom of the stainless steel plate is engaged in the grooved annular belt 241. The grooved annular belt 241 is driven by the driving force of the driving wheel 242 (the external servo motor drives the driving wheel 242 to rotate). The grooved annular belt 241 drives the stainless steel plate to move forward synchronously, matching the driving speed of the driving wheel 244. The grooved annular belt 241 not only bears the load for the stainless steel plate, but also the grooved annular belt 241 can move forward synchronously with the stainless steel plate to avoid sliding friction between the two (to prevent the upper part of the stainless steel plate from being damaged after drawing). When the stainless steel plate contacts the wire drawing wheel 245, the wire drawing wheel 245 is driven by the power box 248, and the wire drawing wheel 245 rotates rapidly (the rotation speed of the wire drawing wheel 245 is much greater than the rotation of the driving wheel 244), and the wire drawing wheel 245 draws wires on both sides of the upper part of the stainless steel plate (the lower part has not been drawn yet). Since the wire drawing wheel 245 is located directly above the waste opening 211, the waste generated during the wire drawing process of the wire drawing wheel 245 can fall into the waste box 31 through the waste opening 211.

[0049] The lower part of the stainless steel plate is brushed (vertically placed):

[0050] After the upper half of the stainless steel plate is wire-drawn, the stainless steel plate disengages from the previous set of driving wheels 244 and enters between the adjacent calibration rods 246 of the previous set. The calibration rods 246 limit and fix it. When the stainless steel plate disengages from the previous set of calibration rods 246, at this time the stainless steel plate is exactly located between the previous set of groove annular belts 241 and the next set of groove annular belts 241, and the stainless steel plate is tightly clamped by the two and can move synchronously with them. At the same time, the servo unit 13 drives the toothed ring 23 to rotate synchronously and intermittently through the output gear, drives the annular slide plate 22 to rotate 180 degrees around the track 12, and drives the previous set of wire-drawing parts 24, the stainless steel plate and the next set of wire-drawing parts 24 to rotate 180 degrees synchronously (the stainless steel plate is clamped by the previous set of groove annular belts 241 and the next set of groove annular belts 241 and will not shake). Since initially, the installation directions of the front and rear wire-drawing parts 24 are opposite, after rotating 180 degrees, the previous set of wire-drawing parts 24 rotates to the reverse state, and the next set of wire-drawing parts 24 rotates to the forward state (the states of the two reciprocate back and forth). The upper half of the stainless steel plate after wire-drawing is driven by the next set of driving wheels 244, and matches the next set of groove annular belts 241 to drive the stainless steel plate to continue to move forward (there is no relative friction between the next set of groove annular belts 241 and the wire-drawn stainless steel plate). When the stainless steel plate contacts the next set of wire-drawing wheels 245, similarly, the wire-drawing wheels 245 start to wire-draw the lower half of the stainless steel plate (compared with the position of the initial stainless steel plate), until the lower half of the stainless steel plate is wire-drawn, and it can be directly taken out.

[0051] As can be seen from the above, what this application emphasizes is that the outer surfaces on both sides of the stainless steel plate can be wire-drawn synchronously, formed by one-time wire-drawing, saving the trouble of secondary wire-drawing, and not damaging the wire-drawn outer surface of the stainless steel plate.

[0052] Waste collection:

[0053] Initially, affected by its own gravity, the lifting plate 34 moves downward a short distance along the outer surface of the circumferential direction of the support rod 33 (the strong spring 36 is compressed and elastically deformed), and the inclined surface of the triangular plate 35 disengages from the side of the inclined plate 32. Since the wire-drawing wheel 245 is directly above the waste outlet 211, during the wire-drawing process of the wire-drawing wheel 245, the generated waste falls onto the upper surface of the inclined plate 32 through the waste outlet 211 and falls into the lifting plate 34 and the waste box 31 along the inclined surface of the triangular plate 35 (the lifting plate 34 is designed with a narrow side to facilitate the waste to fall into the waste box 31), and finally is collected uniformly through the opening and closing door in the waste box 31.

[0054] During the wire-drawing process of the stainless steel plate, this application adopts a one-time wire-drawing forming method. Therefore, it is necessary to rotate and adjust the position of the stainless steel plate, and at the same time, the collection part 3 also needs to rotate 180 degrees. To avoid the leakage of debris in the waste box 31 to the outside, this application is designed with an inclined plate 32, a lifting plate 34 and a triangular plate 35:

[0055] When the entire collection part 3 rotates, the lifting plate 34 and the triangular plate 35 move towards the inclined plate 32 under the influence of their own gravity (the strong spring 36 is still in a compressed state). At this time, the side of the inclined plate 32 just engages at the connection between the lifting plate 34 and the triangular plate 35, and the triangular plate 35 closes the adjacent channels of the inclined plate 32, which can not only prevent the debris in the waste box 31 from leaking outwards, but also help the debris originally deposited on the upper surface of the lifting plate 34 to quickly fall into the waste box 31.

[0056] Please refer to Figure 1 , on the other hand, the present invention provides a wire drawing process for an efficient stainless steel wire drawing device, including the following steps:

[0057] S1: Wire drawing of the upper half of the stainless steel plate. First, the stainless steel plate is vertically inserted between adjacent driving wheels 244, and at the same time, the stainless steel plate drops into the previous set of groove annular belts 241. The cooperation between the groove annular belts 241 and the driving wheels 244 can drive the stainless steel plate to move forward smoothly, and the wire drawing wheels 245 can wire draw the two sides of the upper half of the stainless steel plate;

[0058] S2: Position adjustment of the stainless steel plate. After the wire drawing of the upper half of the stainless steel plate is completed, the servo unit 13 drives the gear ring 23, the channel box 21, the wire drawing parts 24, and the stainless steel plate to perform intermittent movement synchronously. The single intermittent movement rotates 180 degrees, and the stainless steel plate drops into the next set of groove annular belts 241;

[0059] S3: Wire drawing of the lower half of the stainless steel plate. The cooperation between the next set of groove annular belts 241 and the next set of driving wheels 244 can drive the stainless steel plate to move forward smoothly, and the wire drawing wheels 245 wire draw the two sides of the lower half of the stainless steel plate;

[0060] S4: Repeat S3 - S4 to perform the next wire drawing of the stainless steel plate.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-efficiency stainless steel wire drawing equipment, characterized in that: include: An operating body, the operating body comprising a base, the top of the base being fixedly connected to a track via a frame; A wire drawing part, the wire drawing part comprises a channel box, the outer surface of the channel box is fixedly connected to a ring-shaped slide that fits the inner wall of the track through a connecting rod, and the outer surface of the ring-shaped slide is fixedly connected to a gear ring, the top of the base is fixedly connected to a servo unit that can be used to drive the gear ring to rotate intermittently, and a wire drawing piece that can be used for drawing the external stainless steel plate is arranged inside the channel box, and the wire drawing piece is provided with two; It also includes a collecting part, the collecting part includes a waste box, the outer surface of the waste box is fixedly connected to the outer surface of the channel box, the inner wall of the channel box is provided with a waste opening connected to the inside of the channel box, and the inner wall of the waste box is fixedly connected to an inclined plate; The wire drawing piece comprises a grooved annular belt, the inner wall of which is tightly fitted with a driving wheel and a tensioning wheel connected to and rotating inside the channel box, and a driving wheel and a wire drawing wheel rotating with the inside of the channel box are respectively arranged on the side of the grooved annular belt away from the waste material outlet; The inner wall of the channel box is rotatably mounted with a correction rod that fits the outer surface of the external stainless steel plate through a bracket, and two groups of driving wheels are provided, each group of driving wheels is provided with two and symmetrically distributed around the external stainless steel plate, and a driving unit that is transmission-connected to the end face of the driving wheel is fixedly connected to the side of the channel box away from the waste box; The wire drawing wheel is located between the driving wheel and the correction rod, the channel box is fixedly connected to a power box on one side close to the driving unit, and the inside of the power box is connected to the wire drawing wheel through a belt group, and the wire drawing wheel is located directly above the waste opening.

2. The high-efficiency stainless steel wire drawing equipment according to claim 1, characterized in that: A support rod connected to the outer surface of the inclined plate is provided at the bottom of the inner wall of the waste box, a lifting plate is slidably connected to the circumferential outer surface of the support rod, a triangular plate fitted to the side of the inclined plate is fixedly connected to the outer surface of the lifting plate, and a strong spring connected to the inner wall of the waste box is provided on the side of the lifting plate away from the triangular plate.

3. The wire drawing process of a high-efficiency stainless steel wire drawing equipment according to claim 2, characterized in that: The steps include: S1: Wire drawing on the upper part of the stainless steel plate. First, vertically insert the stainless steel plate between adjacent driving wheels, and at the same time, the stainless steel plate falls into the front group of grooved annular belts. The cooperation between the grooved annular belts and the driving wheels can drive the stainless steel plate to move forward smoothly, and the wire drawing wheels can draw the two sides of the upper part of the stainless steel plate. S2: Stainless steel plate position adjustment. When the upper part of the stainless steel plate is finished drawing, the servo unit drives the gear ring, channel box, drawing parts and stainless steel plate to perform intermittent motion synchronously. A single intermittent motion rotates 180 degrees, and the stainless steel plate falls into the rear group of groove annular belts. S3: The lower half of the stainless steel plate is drawn. The cooperation between the rear group of grooved annular belts and the rear group of driving wheels can drive the stainless steel plate to move forward smoothly. The drawing wheels draw the two sides of the lower half of the stainless steel plate.

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