Adjustable metal wire drawing device

Abstract

The present invention discloses an adjustable metal wire drawing device, which relates to the technical field of metal wire drawing, including a frame, a lifting plate, a clamping platform and a motor platform, wherein a supporting side plate is also fixed on the motor platform, the shaft of the servo motor is connected to the driving shaft, the driving shaft passes through the supporting side plate and penetrates into one end of the transmission housing, the other end of the transmission housing is connected to the supporting side plate through a spring, and a wire drawing component is installed on the passive shaft passing through the other end of the transmission housing; by distributing the roller brush into a plurality of stainless steel brushes, the stainless steel brush of this piece is replaced, so as to achieve the purpose of partial replacement without the need for overall replacement, thereby reducing the cost of replacement. According to the different random patterns required, the guide plate connected to each stainless steel brush can be adjusted to be placed in different positions of the corresponding spiral groove to form various styles of random patterns, and the passive shaft controls the stainless steel brush to process straight patterns or random patterns through forward or reverse rotation, so as to adjust according to different pattern requirements.

Description

Technical Field

[0001] The invention relates to the technical field of metal wire drawing, and in particular to an adjustable metal wire drawing device. Background Art

[0002] Metal wire drawing refers to the manufacturing process of scraping lines on a metal plate. The metal wire drawing process can generate a film layer containing the metal component on the metal surface, clearly showing each tiny wire mark, so that the matte metal has a fine hair-like luster. The metal wire drawing process is mostly used in the processing of metal product shells to achieve aesthetic and corrosion resistance. However, when the existing metal wire drawing device is used, the bristles of the roller brush will fall off during long-term use. In this case, the entire roller brush needs to be replaced to ensure the subsequent wire drawing effect, and the cost of directly replacing the entire roller brush is relatively high. Summary of the invention

[0003] The purpose of the present invention is to provide an adjustable metal wire drawing device, which has the advantages of distributing the roller brush into a plurality of stainless steel brushes, replacing the stainless steel brush, achieving the purpose of partial replacement, without the need for overall replacement, and reducing the cost of replacement. According to the different random patterns required, the guide plate connected to each stainless steel brush can be adjusted to be placed in different positions of the corresponding spiral groove to form various styles of random patterns, and the passive shaft controls the stainless steel brush to process straight patterns or random patterns through forward or reverse rotation, so as to adjust according to different pattern requirements.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable metal wire drawing device, comprising a frame, a lifting plate, a clamping platform and a motor platform, the two sides of the frame are connected to the lifting plate through a cylinder, a clamping platform sliding along the X-axis direction is installed on the lifting plate, the clamping platform is equipped with a sliding clamping plate through a screw rod, the motor platform is arranged above the clamping platform, a servo motor sliding along the Y-axis direction is installed on the motor platform, a supporting side plate is also fixed on the motor platform, the shaft of the servo motor is connected to the driving shaft, the driving shaft passes through the supporting side plate and penetrates into one end of the transmission shell, the other end of the transmission shell is connected to the supporting side plate through a spring, a wire drawing component is installed on the passive shaft passing through the other end of the transmission shell, and the active shaft and the passive shaft are connected by a belt;

[0005] The wire drawing component includes a wheel sleeve fixed on the passive shaft, a plurality of arc plates are installed on the wheel sleeve, each arc plate is equipped with a fitted stainless steel brush, and the plurality of stainless steel brushes are assembled into a circular roller brush, which is driven to rotate by a servo motor and is used to perform wire drawing on the metal on the clamping plate;

[0006] The wheel sleeve and the driven shaft are provided with a driving component for driving the roller brush to reciprocate along the axis of the wheel sleeve;

[0007] The wheel sleeve is provided with a number of slots distributed at equal intervals along the radial direction, each slot includes a cylindrical hole, a middle hole and a limiting hole, the cylindrical hole, the middle hole and the limiting hole are connected in sequence, and a symmetrical sliding groove is provided on the inner wall of the limiting hole;

[0008] The driving component includes a first conical transmission block fixed on the driven shaft, a second conical transmission block connected to the first conical transmission block, a transmission shaft is fixed at the center of the second conical transmission block, the transmission shaft passes through the cylindrical hole, and a staggered and connected spiral groove is opened on the outer wall of the middle part of the transmission shaft;

[0009] The bottom surface of the arc plate is fixed to the limit block, and the sliders fixed on the two symmetrical sides of the limit block are inserted into the slide groove. The bottom end of the limit block extends into the middle hole and connects with the guide plate, wherein the guide plate is inserted into the spiral groove and moves along the spiral groove to drive the roller brush on the arc plate to reciprocate along the limit hole.

[0010] Furthermore, the stainless steel brush comprises a steel plate and bristles, the bristles are distributed in clusters on the steel plate, and the steel plate is assembled on the arc plate.

[0011] Furthermore, a detachable positioning plate is installed on the port of the passive shaft, a positioning seat corresponding to the transmission shaft is fixed on the positioning plate, and the port of the transmission shaft is inserted into the positioning seat.

[0012] Furthermore, the passive shaft and the wheel sleeve are also provided with a switching component for driving the second conical surface transmission block to contact or disengage with the first conical surface transmission block.

[0013] Furthermore, the switching component includes a ring body and a guide column fixed on the transmission housing, the passive shaft passes through the center position of the ring body, the guide column is arranged in the ring body, the other end of the guide column passes through the locking sleeve, one end of the return spring sleeved on the guide column is fixed to the transmission housing, and the other end of the return spring is fixed to the locking sleeve, and the side of the locking sleeve is also movably connected to the swivel through a bearing, and the connecting rod connected to the swivel is fixed at the center of the second conical transmission block.

[0014] Furthermore, a guide groove is provided on the outer circumferential surface of the locking sleeve, and a guide block inserted into the guide groove is provided on the inner wall of the ring body, so that the locking sleeve can slide along the direction of the guide block.

[0015] Furthermore, the passive shaft is provided with a section of thread, and the locking sleeve reciprocates along the thread so as to make the second conical surface transmission block contact or disengage with the first conical surface transmission block.

[0016] Furthermore, the outer walls of the second conical surface transmission block and the first conical surface transmission block are covered with rubber pads, and a plurality of concave and convex points are arranged on the outer walls of the rubber pads.

[0017] Technical effects and advantages of the present invention:

[0018] 1. By distributing the roller brush into several stainless steel brushes, the stainless steel brush on each piece may be worn, shed, and broken after a period of use. In this case, the stainless steel brush of this piece can be replaced to achieve the purpose of partial replacement without the need for overall replacement, thus reducing the cost of replacement.

[0019] 2. This equipment can adjust the guide plate connected to each stainless steel brush to different positions of the corresponding spiral groove according to the different random patterns required. Each stainless steel brush can move back and forth synchronously or asynchronously, and a variety of random pattern styles can be formed to meet different random pattern requirements.

[0020] 3. The passive shaft controls the second cone transmission block and the first cone transmission block to disengage or contact by forward or reverse rotation, so as to achieve straight or random grain processing of stainless steel brushes, so as to adjust according to different grain requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structure diagram of the present invention;

[0022] Figure 2 This is a separation diagram of the stainless steel brush, arc plate and wheel sleeve of the present invention;

[0023] Figure 3 This is a diagram showing a state where the driving component and the wheel sleeve are separated in the second embodiment of the present invention;

[0024] Figure 4 This is a diagram showing the state where the driving component of the second embodiment of the present invention is located inside the wheel sleeve;

[0025] Figure 5 This is a diagram showing the arc plate of the second embodiment of the present invention moving in the spiral groove through the limit block and the guide plate;

[0026] Figure 6 This is a diagram showing the asynchronous reciprocating state of the stainless steel brush according to the second embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional internal structure diagram of a ring body according to Embodiment 3 of the present invention;

[0028] Figure 8 A diagram showing the contact state of the first conical surface transmission block and the second conical surface transmission block in the third embodiment of the present invention;

[0029] Fig. 9 This is a diagram showing the disengagement state of the first conical surface transmission block and the second conical surface transmission block of the third embodiment of the present invention;

[0030] Fig.10 This is a partial exploded view of the switching component of the third embodiment of the present invention.

[0031] In the figure:

[0032] 1. Frame; 2. Lifting plate; 3. Clamping platform; 31. Clamping plate; 4. Motor platform; 41. Servo motor; 42. Support side plate; 43. Active shaft; 5. Transmission housing; 51. Spring; 52. Passive shaft; 521. Positioning plate; 522. Positioning seat; 6. Wire drawing component; 61. Wheel sleeve; 62. Arc plate; 63. Stainless steel brush; 631. Steel plate; 632. Bristles; 71. Cylindrical hole; 72. Middle hole; 73. Limiting hole; 8. Driving component; 81. First conical transmission block; 82. Second conical transmission block; 83. Transmission shaft; 84. Spiral groove; 85. Limiting block; 86. Guide plate; 9. Switching component; 91. Ring body; 92. Guide column; 93. Lock sleeve; 94. Swivel; 95. Connecting rod; 96. Return spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In order to better understand the adjustable metal wire drawing device provided by the present embodiment, the following first briefly introduces the existing metal wire drawing device. When replacing the entire roller brush, it is necessary to first disassemble the outer shell, and then disassemble the roller brush and the shaft key on the shaft before the entire roller brush can be removed from the shaft. Then, the new roller brush is inserted into the shaft and assembled after aligning the shaft key. The assembly steps are cumbersome and costly. If the roller brush is not replaced as a whole, it is necessary to repair the position where the bristles fall off. After cleaning the roller brush at the position where the bristles fall off, a new brush is fixed on the roller brush. Although local repair reduces costs, it increases downtime. The embodiment of the present application provides an adjustable metal wire drawing device.

[0035] Example 1: Reference Figure 1-Figure 2, which is the first embodiment of the present invention, provides an adjustable metal wire drawing device, including a frame 1, a lifting plate 2, a clamping platform 3 and a motor platform 4, both sides of the frame 1 are connected to the lifting plate 2 through a cylinder, a clamping platform 3 sliding along the X-axis direction is installed on the lifting plate 2, the clamping platform 3 is equipped with a sliding clamping plate 31 through a screw rod, the motor platform 4 is arranged above the clamping platform 3, a servo motor 41 sliding along the Y-axis direction is installed on the motor platform 4, a supporting side plate 42 is also fixed on the motor platform 4, the shaft of the servo motor 41 is connected to the driving shaft 43, the driving shaft 43 passes through the supporting side plate 42 and penetrates into one end of the transmission shell 5, the other end of the transmission shell 5 is connected to the supporting side plate 42 through a spring 51, a wire drawing component 6 is installed on the passive shaft 52 passing through the other end of the transmission shell 5, and the driving shaft 43 and the passive shaft 52 are connected by a belt;

[0036] During wire drawing, the servo motor 41 starts to drive the active shaft 43 to rotate, and transmits power to the passive shaft 52 through the belt, thereby realizing the rotation of the wire drawing component 6. The clamping platform 3 follows the lifting plate 2 to rise and fall under the drive of the cylinder, and is used to adjust the height of the clamping plate 31 clamping the metal part. The clamping platform 3 moves back and forth along the lifting plate 2. During wire drawing, it is used to drive the wire drawing component 6 to continuously move back and forth along the Y-axis direction and the metal part to continuously move along the X-axis direction, so as to realize wire drawing on the surface of the metal part.

[0037] The wire drawing component 6 includes a wheel sleeve 61 fixed on the passive shaft 52, and a plurality of arc plates 62 are installed on the wheel sleeve 61. Each arc plate 62 is equipped with a fitting stainless steel brush 63. The plurality of stainless steel brushes 63 are assembled into a circular roller brush. The roller brush is driven to rotate by the servo motor 41 and is used to perform wire drawing on the metal on the clamping plate 31.

[0038] The wheel sleeve 61 is fixedly mounted on the passive shaft 52 , and the rotation of the passive shaft 52 drives the wheel sleeve 61 to rotate synchronously.

[0039] The stainless steel brush 63 includes a steel plate 631 and bristles 632 . The bristles 632 are distributed in clusters on the steel plate 631 . The steel plate 631 is assembled on the arc plate 62 .

[0040] By distributing the roller brush into several stainless steel brushes 63, each stainless steel brush 63 may be worn, hair-shed, or have broken wires after being used for a period of time. In this case, the stainless steel brush 63 of this piece can be replaced to achieve the purpose of partial replacement without the need for overall replacement, thereby reducing the cost of replacement.

[0041] The stainless steel brush 63 of the device is easy to replace. The arc plate 62 and the steel plate 631 can be assembled and replaced only by disassembly and assembly, which simplifies the replacement steps and shortens the replacement time. At the same time, the size of each steel plate 631 is the same. According to the required different drawing effects, the number of each cluster of bristles 632 can be adjusted to change the density of the bristles 632 on each steel plate 631.

[0042] At the same time, the device can assemble stainless steel brushes 63 of different densities on the arc plate 62, and assemble stainless steel brushes 63 of different densities on a wheel sleeve 61 to change the wire drawing effect.

[0043] Example 2: Reference Figure 3-Figure 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it is found that the above-mentioned wire drawing is usually a straight wire with continuous wire patterns and only has a certain curvature, and cannot produce random patterns.

[0044] In order to solve the above problem, the present embodiment drives each stainless steel brush 63 through the driving component 8 to rotate with the wheel sleeve 61 and reciprocate along the axis of the wheel sleeve 61, so as to achieve the purpose of processing random patterns when several stainless steel brushes 63 are drawing metal parts.

[0045] A driving component 8 is installed on the wheel sleeve 61 and the driven shaft 52 to drive the roller brush to reciprocate along the axis direction of the wheel sleeve 61 .

[0046] The wheel sleeve 61 is provided with a plurality of slots distributed at equal intervals along the radial direction, each slot includes a cylindrical hole 71, a middle hole 72 and a limiting hole 73, the cylindrical hole 71, the middle hole 72 and the limiting hole 73 are connected in sequence, and a symmetrical sliding groove is provided on the inner wall of the limiting hole 73;

[0047] The driving component 8 includes a first conical transmission block 81 fixed on the passive shaft 52, the first conical transmission block 81 and the passive shaft 52 rotate synchronously, a second conical transmission block 82 connected to the first conical transmission block 81, the outer walls of the second conical transmission block 82 and the first conical transmission block 81 are covered with rubber pads, and a plurality of concave and convex points are arranged on the outer wall of the rubber pad, the concave and convex points are used to increase the friction force connecting the second conical transmission block 82 and the first conical transmission block 81, so as to realize the synchronous rotation between the second conical transmission block 82 and the first conical transmission block 81.

[0048] A transmission shaft 83 is fixed at the center of the second conical transmission block 82. The transmission shaft 83 passes through the cylindrical hole 71. A staggered and connected spiral groove 84 is provided on the outer wall of the middle portion of the transmission shaft 83.

[0049] The bottom surface of the arc plate 62 is fixed to the limit block 85, and the sliders fixed on the two symmetrical sides of the limit block 85 are inserted into the slide groove. The bottom end of the limit block 85 extends into the middle hole 72 and connects with the guide plate 86, wherein the guide plate 86 is inserted into the spiral groove 84 and moves along the spiral groove 84 to drive the roller brush on the arc plate 62 to reciprocate along the limit hole 73.

[0050] The rotation of the second conical transmission block 82 drives the transmission shaft 83 and the spiral groove 84 to rotate synchronously, and the guide plate 86 moves along the spiral groove 84, and the slider of the limit block 85 slides back and forth along the slide groove, which is used to drive the roller brush on the arc plate 62 to move back and forth along the limit hole 73, so that each stainless steel brush 63 can also move back and forth along the axis of the passive shaft 52 during the process of rotating around the passive shaft 52, and the reciprocating movement rate of the stainless steel brush 63 is controlled by the rotation speed of the passive shaft 52.

[0051] A detachable positioning plate 521 is also installed on the port of the passive shaft 52. A positioning seat 522 corresponding to the transmission shaft 83 is fixed on the positioning plate 521. The port of the transmission shaft 83 is inserted into the positioning seat 522. The transmission shaft 83 can be inserted into the positioning seat 522 to support the port of the transmission shaft 83. The assembly of the transmission shaft 83 is facilitated by disassembling and assembling the positioning plate 521. It is only necessary to insert one end of the transmission shaft 83 into the cylindrical hole 71 first, and the limit block 85 on the spiral groove 84 is slidable. By inserting it into the slide groove, the transmission shaft 83 and the arc plate 62 can be pushed to move synchronously, and when the transmission shaft 83 passes through the cylindrical hole 71, the second conical transmission block 82 is sleeved on the transmission shaft 83 until the second conical transmission block 82 contacts the first conical transmission block 81, and the assembly of the driving component 8 is completed. After the assembly of the driving components 8 on each wheel sleeve 61 is completed, the positioning seat 522 on the positioning plate 521 is inserted by the transmission shaft 83, and the positioning plate 521 is fixed on the passive shaft 52 to complete the assembly.

[0052] This device can adjust the guide plate 86 connected to each stainless steel brush 63 to be placed at different positions of the corresponding spiral groove 84 according to the different random patterns required. Each stainless steel brush 63 can move back and forth synchronously or asynchronously, and a variety of random pattern styles can be formed to meet different random pattern requirements.

[0053] Example 3: Reference Figure 7-10, which is the third embodiment of the present invention. This embodiment is different from the second embodiment. During the implementation of the second embodiment, it was found that the second embodiment can only pull out random lines but cannot pull out straight lines. In order to solve the above problem, this embodiment sets a switching component 9 to control the different rotation directions of the passive shaft 52 to achieve the second conical transmission block 82 to contact or disengage with the first conical transmission block 81. When the second conical transmission block 82 contacts the first conical transmission block 81, each stainless steel brush 63 moves back and forth to process random lines on the metal part. When the second conical transmission block 82 disengages from the first conical transmission block 81, the stainless steel brush 63 cannot move back and forth, and the stainless steel brush 63 processes straight lines on the metal part to meet different processing requirements.

[0054] The passive shaft 52 and the wheel sleeve 61 are also provided with a switching component 9 for driving the second conical transmission block 82 to contact or disengage with the first conical transmission block 81. The switching component 9 includes a ring body 91 and a guide column 92 fixed on the transmission housing 5. The passive shaft 52 passes through the center position of the ring body 91. The guide column 92 is arranged in the ring body 91. The other end of the guide column 92 passes through a locking sleeve 93. One end of a return spring 96 sleeved on the guide column 92 is fixed to the transmission housing 5, and the other end of the return spring 96 is fixed to the locking sleeve 93. The side of the locking sleeve 93 is also movably connected to a swivel 94 through a bearing. A connecting rod 95 connected to the swivel 94 is fixed at the center of the second conical transmission block 82.

[0055] A guide groove is provided on the outer circumference of the locking sleeve 93, and a guide block inserted into the guide groove is provided on the inner wall of the ring body 91, so that the locking sleeve 93 slides along the direction of the guide block and moves in the guide groove through the guide block on the ring body 91 to reduce the rotational pressure of the locking sleeve 93 on the guide column 92.

[0056] The driven shaft 52 is provided with a thread, and the locking sleeve 93 reciprocates along the thread to enable the second conical surface transmission block 82 to contact or disengage with the first conical surface transmission block 81 .

[0057] Through the above two limiting structures, when the passive shaft 52 rotates, the locking sleeve 93 can only move along the passive shaft 52, and the locking sleeve 93 itself cannot rotate.

[0058] When the passive shaft 52 rotates forward, the locking sleeve 93 moves along the guide column 92 and slowly stretches the reset spring 96. During the movement, the locking sleeve 93 pushes the connecting rod 95, the rotating ring 94, the second conical transmission block 82 and the transmission shaft 83 to move synchronously toward the positioning plate 521. At this time, the second conical transmission block 82 and the first conical transmission block 81 will disengage, and the internal thread of the locking sleeve 93 will disengage from the thread of the passive shaft 52. At this time, the locking sleeve 93 moves to the disengagement point. At this time, the direction of the internal thread of the locking sleeve 93 is consistent with the rotation of the passive shaft 52. The rotation directions are the same, and the rotation of the passive shaft 52 cannot drive the locking sleeve 93 to continue to move, so as to keep the locking sleeve 93 at the disengagement point and not move, while the passive shaft 52 continues to rotate to drive the stainless steel brush 63 to rotate. At this time, the second conical transmission block 82 rotates synchronously with the passive shaft 52, and the second conical transmission block 82 drives the swivel 94 to rotate around the side of the locking sleeve 93 through the connecting rod 95, so that the roller brush formed by the stainless steel brush 63 only rotates around the axis, and does not reciprocate along the axis, and the rotating roller brush processes straight lines on the surface of the metal part.

[0059] When the driven shaft 52 is in reverse rotation, the direction of the internal thread of the locking sleeve 93 is opposite to the rotation direction of the driven shaft 52. Under the elastic force of the reset spring 96, the internal thread of the locking sleeve 93 is screwed onto the thread of the driven shaft 52. At this time, the driven shaft 52 rotates to drive the locking sleeve 93 to move toward the transmission housing 5 until the locking sleeve 93 continues to disengage from the thread. The locking sleeve 93 reaches the disengagement point and the reset spring 96 is in a compressed state. At this time, the direction of the internal thread of the locking sleeve 93 is in the same direction as the rotation direction of the driven shaft 52. The rotation of the driven shaft 52 cannot drive the locking sleeve 93 to continue to move, so as to keep the locking sleeve 93 stationary at the disengagement point. At this time, the second conical transmission block 82 and the first conical transmission block 81 are in contact, and the driven shaft 52 continues to rotate to drive the stainless steel brush 63 to rotate, so that the roller brush formed by the stainless steel brush 63 can rotate around the axis while also being able to reciprocate along the axis. The rotating roller brush processes random patterns on the surface of the metal part.

[0060] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable metal wire drawing device, comprising a frame (1), a lifting plate (2), a clamping platform (3) and a motor platform (4), wherein both sides of the frame (1) are connected to the lifting plate (2) through a cylinder, a clamping platform (3) sliding along the X-axis direction is installed on the lifting plate (2), the clamping platform (3) is equipped with a sliding clamping plate (31) through a screw rod, the motor platform (4) is arranged above the clamping platform (3), and a servo motor (41) sliding along the Y-axis direction is installed on the motor platform (4), characterized in that: A supporting side plate (42) is also fixed on the motor platform (4), the shaft of the servo motor (41) is connected to the driving shaft (43), the driving shaft (43) passes through the supporting side plate (42) and penetrates into one end of the transmission housing (5), the other end of the transmission housing (5) is connected to the supporting side plate (42) via a spring (51), a wire drawing component (6) is installed on the passive shaft (52) passing through the other end of the transmission housing (5), and the driving shaft (43) and the passive shaft (52) are connected via a belt; The wire drawing component (6) comprises a wheel sleeve (61) fixedly sleeved on the passive shaft (52), a plurality of arc plates (62) being mounted on the wheel sleeve (61), each arc plate (62) being equipped with a fitted stainless steel brush (63), the plurality of stainless steel brushes (63) being assembled into a circular roller brush, the roller brush being driven to rotate by a servo motor (41) to perform wire drawing on the metal on the clamping plate (31); A driving component (8) is mounted on the wheel sleeve (61) and the driven shaft (52) to drive the roller brush to reciprocate along the axis direction of the wheel sleeve (61); The wheel sleeve (61) is provided with a plurality of slots distributed at equal intervals along the radial direction, each slot comprising a cylindrical hole (71), a middle hole (72) and a limiting hole (73), the cylindrical hole (71), the middle hole (72) and the limiting hole (73) are connected in sequence, and a symmetrical sliding groove is provided on the inner wall of the limiting hole (73); The driving component (8) comprises a first conical transmission block (81) fixed on the driven shaft (52), a second conical transmission block (82) connected to the first conical transmission block (81), a transmission shaft (83) fixed at the center of the second conical transmission block (82), the transmission shaft (83) passing through the cylindrical hole (71), and a staggered and connected spiral groove (84) is provided on the outer wall of the middle part of the transmission shaft (83); The bottom surface of the arc plate (62) is fixed to a limit block (85), and sliding blocks fixed on two symmetrical side surfaces of the limit block (85) are inserted into the slide groove, and the bottom end of the limit block (85) extends into the middle hole (72) and connects with the guide plate (86), wherein the guide plate (86) is inserted into the spiral groove (84) and moves along the spiral groove (84) to drive the roller brush on the arc plate (62) to reciprocate along the limit hole (73).

2. The adjustable metal wire drawing device according to claim 1, characterized in that: The stainless steel brush (63) comprises a steel plate (631) and bristles (632), wherein the bristles (632) are distributed in clusters on the steel plate (631), and the steel plate (631) is assembled on the arc plate (62).

3. The adjustable metal wire drawing device according to claim 2, characterized in that: A detachable positioning plate (521) is also mounted on the port of the passive shaft (52), a positioning seat (522) corresponding one-to-one to the transmission shaft (83) is fixed on the positioning plate (521), and the port of the transmission shaft (83) is inserted into the positioning seat (522).

4. The adjustable metal wire drawing device according to claim 3, characterized in that: The passive shaft (52) and the wheel sleeve (61) are also provided with a switching component (9) for driving the second conical surface transmission block (82) to contact or disengage with the first conical surface transmission block (81).

5. The adjustable metal wire drawing device according to claim 4, characterized in that: The switching component (9) comprises a ring body (91) fixed on the transmission housing (5) and a guide column (92); the driven shaft (52) passes through the center of the ring body (91); the guide column (92) is arranged in the ring body (91); the other end of the guide column (92) passes through a lock sleeve (93); one end of a return spring (96) sleeved on the guide column (92) is fixed to the transmission housing (5); the other end of the return spring (96) is fixed to the lock sleeve (93); the side surface of the lock sleeve (93) is also movably connected to a rotating ring (94) via a bearing; and a connecting rod (95) connected to the rotating ring (94) is fixed at the center of the second conical transmission block (82).

6. The adjustable metal wire drawing device according to claim 5, characterized in that: A guide groove is provided on the outer circumferential surface of the locking sleeve (93), and a guide block inserted into the guide groove is provided on the inner wall of the ring body (91) for sliding the locking sleeve (93) along the direction of the guide block.

7. The adjustable metal wire drawing device according to claim 6, characterized in that: The passive shaft (52) is provided with a section of thread, and the locking sleeve (93) reciprocates along the thread to enable the second conical surface transmission block (82) to contact or disengage with the first conical surface transmission block (81).

8. The adjustable metal wire drawing device according to claim 7, characterized in that: The outer walls of the second conical transmission block (82) and the first conical transmission block (81) are covered with a rubber pad, and a plurality of concave and convex points are arranged on the outer walls of the rubber pad.

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