A squeegee line paint stripping device and method

Abstract

The application discloses a paint removing device and method, which comprises a scraping line assembly, a plurality of scraper columns and scraper blades, the scraper blades are arranged at the end of the scraper columns, the tips of the plurality of scraper blades are distributed around the same circumference, the tips of the plurality of scraper blades are arranged around to form a threading hole for the coated wire to pass through, when the coated wire is located in the threading hole, the coated wire rotates relative to the threading hole, a limiting member is arranged to limit the tips of the plurality of scraper blades to point to the center of the same circumference, and an adjusting member is arranged to adjust the diameter of the threading hole. The application has the advantages that the plurality of scraper blades cooperate to scrape the line paint on the coated wire along the circumferential direction and the length direction of the coated wire, so that the line paint on the coated wire is completely scraped off, and the stability and efficiency of the line paint scraping are ensured, and the labor is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to a wire scraping paint removal device and a paint removal method. BACKGROUND

[0002] The enameled wire is a main category of winding wire, which is composed of a conductor and an insulating layer. After the bare wire is softened by annealing, it is coated with paint for multiple times and baked to form the enameled wire. During use, the insulating paint at the end of the enameled wire must be completely removed before welding. The traditional manual paint scraping is slow, labor-intensive, and often not clean, which requires repeated rework, resulting in low efficiency. Therefore, it is urgent to improve. SUMMARY

[0003] In order to improve the efficiency of paint scraping, the present application provides a wire scraping paint removal device and a paint removal method, which cooperates with an external clamp for clamping the enameled wire to mechanically scrape the enameled wire.

[0004] The wire scraping paint removal device and the paint removal method provided by the present application adopt the following technical scheme:

[0005] A wire scraping paint removal device comprises

[0006] A wire scraping assembly comprises a plurality of scraper columns and scraper blades, the scraper blades are arranged at the end of the scraper columns, the tips of the plurality of scraper blades are distributed around the same circumference, and the tips of the plurality of scraper blades form a threading hole for the enameled wire to pass through; when the enameled wire is located in the threading hole, the enameled wire rotates relative to the threading hole;

[0007] A limiting member limits the tips of the plurality of scraper blades to point to the center of the same circumference;

[0008] An adjusting member adjusts the diameter of the threading hole.

[0009] The enameled wire clamped by the clamp is inserted into the threading hole, so that the enameled wire passes between the plurality of scraper columns. The adjusting member adjusts the diameter of the threading hole to adapt to the diameter of the enameled wire. The limiting member limits the tips of the scraper blades to point to the enameled wire. The tips of the plurality of scraper blades are tightly pressed against the circumferential paint of the enameled wire. The clamp is driven to rotate, thereby driving the enameled wire to rotate. At the same time, the clamp pulls the enameled wire outward, so that the enameled wire rotates along its circumferential direction and moves along its length direction away from the wire scraping assembly. The plurality of scraper blades cooperate to scrape the wire paint on the enameled wire along the circumferential direction and the length direction of the enameled wire, so that the wire paint on the enameled wire is completely scraped off, which is beneficial to save labor and ensure the stability and efficiency of the wire paint scraping.

[0010] Preferably, the wire scraping assembly comprises a support frame, the limiting member comprises a swing arm, the number of the swing arms is set corresponding to the number of the scraper blades, the scraper blades are arranged at the end of the swing arms, and the swing arms are rotationally connected to one end face of the support frame.

[0011] The swing arm rotates to drive the scraper blades at the end of the swing arm to move away from or close to each other, and the space between the adjacent swing arms is used to drive the scraper blades to adjust the diameter of the threading hole. Compared with directly driving the scraper blades to slide along the radial direction of the threading hole, the scraper blades and the swing arm are less likely to slide out of the end of the support frame due to the small area of the end of the support frame, which helps to reduce the external area occupied by the scraper blades and the swing arm when moving, thereby reducing the collision and damage caused by the swing arm protruding from the support frame.

[0012] Preferably, the limiting piece further comprises multiple limiting blocks and a movable slot, the number of limiting blocks is set corresponding to the number of scraper blades, the scraper column is rotationally connected to the end of the swing arm, one end of the scraper column is fixed relative to the limiting block, the end of the limiting block away from the scraper blade is provided with a movable rod, the movable rod is inserted into the movable slot, the movable slot is an arc-shaped slot, and the movable rod and the movable slot cooperate to drive the scraper column to rotate.

[0013] When the swing arm rotates, it drives the scraper blades to rotate, forming the revolution state of the scraper blades. At this time, the tip of the scraper blade deviates from the center of the threading hole due to the rotation of the swing arm. Therefore, the scraper blade needs to rotate by a certain angle synchronously to keep the tip of the scraper blade always aligned with the center of the threading hole. When the swing arm rotates, the movable rod is driven to rotate by the limiting block. At the same time, the relative position between the scraper blade and the movable slot changes, so the movable rod slides in the movable slot synchronously. Due to the length limitation of the limiting block and the slot shape of the movable slot, the scraper blade rotates. By limiting the slot type of the movable slot, the rotation angle of the scraper blade caused by the revolution of the swing arm is offset, so that the tip of the scraper blade is always aligned with the center of the threading hole, and the scraper blade keeps stable scraping and paint removal operation.

[0014] Preferably, the limiting block is arranged on the side of the swing arm away from the scraper blade, the side of the swing arm away from the scraper blade abuts against the side of the limiting block close to the scraper column, and the scraper column penetrates through the swing arm and the limiting block.

[0015] The limiting block is arranged between the swing arm and the support frame, and the space between the swing arm and the support frame is used to reduce the occupied area of the end of the support frame by the swing arm and the limiting block, thereby reducing the area that the support frame needs to be set. At the same time, the limiting block and the swing arm can directly apply force to the scraper blade, avoiding the need to set a linkage structure to cause the structure of the whole wire scraping device to be complex.

[0016] Preferably, the adjusting piece comprises an adjusting cone, the adjusting cone is slidably connected to the support frame, the adjusting cone penetrates through the end face of the support frame vertically, and multiple limiting blocks abut against the adjusting cone.

[0017] The driving adjusting cone slides along the support frame, so that the length of the adjusting cone protruding from the end surface of the support frame changes. Due to the abutment of the limiting block and the adjusting cone, the minimum distance by which the adjacent limiting block can approach is limited, and in turn the distance by which the plurality of scraper blades can approach each other is limited, thereby adjusting the diameter of the threading hole.

[0018] Preferably, the limiting member comprises a synchronous belt, a plurality of internal gears and an elastic member. The plurality of internal gears are all internally engaged with the inner periphery of the synchronous belt. The number of the internal gears is set corresponding to the number of the scraper blades. The elastic member pushes the plurality of scraper blades to move towards the direction of approaching each other.

[0019] When the length of the adjusting cone protruding from the surface of the support frame becomes longer, the limiting block is pushed by the adjusting cone, so that the swing arm moves towards the direction of moving away from each other, and the elastic member is thus compressed. When one of the internal gears is forced to rotate, the synchronous belt engaged with it slides synchronously, and in turn drives the remaining plurality of internal gears to rotate, so that the plurality of swing arms can stably maintain the motion state of synchronous rotation, avoiding the situation that one of the swing arms is stuck and difficult to rotate, which is beneficial to improve the structural compactness of the driving structure of the swing arm.

[0020] Preferably, the limiting member comprises an external gear, a plurality of internal gears and an elastic member. The plurality of internal gears are all internally engaged with the inner periphery of the external gear. The number of the internal gears is set corresponding to the number of the scraper blades. The elastic member pushes the plurality of scraper blades to move towards the direction of approaching each other.

[0021] When the length of the adjusting cone protruding from the surface of the support frame becomes longer, the limiting block is pushed by the adjusting cone, so that the swing arm moves towards the direction of moving away from each other, and the elastic member is thus compressed. When one of the internal gears is forced to rotate, the external gear engaged with it slides synchronously, and in turn drives the remaining plurality of internal gears to rotate, so that the plurality of swing arms can stably maintain the motion state of synchronous rotation, avoiding the situation that one of the swing arms is stuck and difficult to rotate, which is beneficial to improve the structural compactness of the driving structure of the swing arm.

[0022] Preferably, the elastic member is a tension spring, and the two ends of the tension spring are respectively supported by the end surface of the support frame and the swing arm.

[0023] Preferably, the elastic member is a torsion spring, and the torsion spring is sleeved on the rotating shaft of the swing arm.

[0024] A line scraping paint removal method, using the line scraping paint removal device of any one of claims 1-9, characterized in that it comprises the following steps:

[0025] S1: clamping the painted wire on the clamp, and starting the driving motor to make the scraper blades move away from each other;

[0026] S2: starting the clamp to drive the painted wire to approach the line scraping assembly, so that the painted wire penetrates into the threading hole;

[0027] S3: start the driving motor, so that the adjusting cone moves away from the direction of the scraper blade, the elastic member applies pressure to the swing arm so that the plurality of scraper blades are close to each other, so that the blade tip of the scraper blade abuts against the paint line;

[0028] S4: start the clamp, so that the clamp drives the paint line to rotate, and at the same time drives the paint line to move away from the direction of the scraper assembly, so that the line paint of the paint line is scraped off.

[0029] In summary, the present application has the following beneficial technical effects:

[0030] The paint line clamped by the clamp is inserted into the threading hole, so that the paint line is inserted between the plurality of scraper columns, the adjusting member is started, the diameter of the threading hole of the adjusting member is adjusted to adapt to the diameter of the paint line, the limiting member limits the direction of the blade tip of the scraper blade, so that the blade tips of the plurality of scraper blades abut against the outer peripheral line paint of the paint line, the clamp is driven to rotate, thereby driving the paint line to rotate, and at the same time the clamp pulls the paint line outward, so that the paint line rotates along the circumferential direction and moves along the length direction away from the scraper assembly, the plurality of scraper blades cooperate to scrape off the line paint on the paint line along the circumferential direction and the length direction of the paint line, so that the line paint on the paint line is completely scraped off, which is beneficial to save labor and ensure the stability and efficiency of the line paint scraping. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of a line scraping paint removal device.

[0032] Figure 2 is a structure schematic diagram for illustrating the structure of a synchronous belt.

[0033] Figure 3 is a structure schematic diagram for illustrating the structure of a scraper assembly.

[0034] Figure 4 is a structure schematic diagram for illustrating the relative position of the movable groove and the swing arm.

[0035] Figure 5 is a structure schematic diagram for illustrating the relative position of the inner gear and the outer gear in other embodiments.

[0036] Marked: 1, scraper assembly; 11, scraper column; 111, groove; 12, scraper blade; 13, support frame; 2, limiting member; 21, swing arm; 22, limiting block; 221, adjusting groove; 222, plug-in hole; 223, threaded hole; 23, movable groove; 24, movable rod; 25, synchronous belt; 26, inner gear; 27, outer gear; 3, adjusting member; 31, driving motor; 32, through hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings Figures 1-5Further details of the present application are provided below.

[0038] The present application discloses a paint stripping device and a paint stripping method.

[0039] Referring to Figure 1 and Figure 2 A paint stripping device comprises:

[0040] The paint stripping device comprises a paint stripping assembly 1, three scraper columns 11 and three scraper blades 12. The tips of the three scraper blades 12 are uniformly distributed around the same circumference and form a threading hole for the coated wire to pass through. When the coated wire is located in the threading hole, the coated wire rotates relative to the threading hole.

[0041] The paint stripping device further comprises a limiting member 2 for limiting the tips of the three scraper blades 12 to point to the center of the same circumference.

[0042] The paint stripping device further comprises an adjusting member 3 for adjusting the diameter of the threading hole.

[0043] The coated wire clamped by the clamp is threaded into the threading hole so that the coated wire is threaded between the three scraper columns 11. The limiting member 2 limits the tips of the three scraper blades 12 to point to the center of the same circumference. The tips of the three scraper blades 12 are tightly pressed against the outer circumferential paint of the coated wire. The clamp is driven to rotate, thereby driving the coated wire to rotate and move in the length direction away from the paint stripping assembly 1. The three scraper blades 12 cooperate to scrape the wire paint on the coated wire in the circumferential and length directions of the coated wire, so that the wire paint on the coated wire is completely scraped off.

[0044] In the present embodiment, the number of scraper blades 12 is three. In other embodiments, the number of scraper blades 12 can also be two, four, five or six according to actual conditions.

[0045] The end of the scraper column 11 is provided with a groove 111 for clamping and fixing the scraper blade 12. The groove 111 can prevent the scraper blade 12 from being dislocated due to stress and improve the stability of the scraper blade 12.

[0046] Referring to Figure 3 and Figure 4 In the present embodiment, the paint stripping assembly 1 comprises a support frame 13, the limiting member 2 comprises three swing arms 21, three limiting blocks 22 and three movable grooves 23. The swing arm 21 is rotationally connected to one end face of the support frame 13. The scraper column 11 penetrates the end of the swing arm 21 and is rotationally connected to the end of the swing arm 21.

[0047] The limiting block 22 is arranged on the side of the swing arm 21 away from the scraper blade 12, and the side of the limiting block 22 close to the scraper blade 12 abuts against the side of the swing arm 21 away from the scraper blade 12 along the thickness direction of the swing arm 21. The limiting block 22 penetrates an adjusting groove 221 and a plug-in hole 222, the end of the scraper column 11 is plugged into the plug-in hole 222, and the plug-in hole 222 communicates with the adjusting groove 221. The plug-in hole 222 and the adjusting groove 221 both penetrate the limiting block 22 from the end face of the limiting block 22 close to the swing arm 21 to the direction away from the swing arm 21, and the length direction of the adjusting groove 221 is consistent with the length direction of the limiting block 22. The limiting block 22 also penetrates a threaded hole 223, the threaded hole 223 is threadedly connected with a clamping screw, the clamping screw penetrates the limiting block 22 to adjust the width of the adjusting groove 221, so that the scraper column 11 is clamped and fixed, and the relative rotation between the scraper column 11 and the limiting block 22 is limited.

[0048] The limiting block 22 is arranged between the swing arm 21 and the support frame 13, and the space between the swing arm 21 and the support frame 13 is used to reduce the occupied area of the end of the support frame 13 by the arrangement of the swing arm 21 and the limiting block 22, thereby reducing the area required to be arranged by the support frame 13. At the same time, the limiting block 22 and the swing arm 21 can directly apply force to the scraper blade 12, avoiding the need to set up a linkage structure to cause the structure of the whole line scraping device to be complex.

[0049] The swing arm 21 rotates to drive the scraper blades 12 at the ends of the swing arms 21 to move away from or close to each other, and the space between the adjacent swing arms 21 is used to drive the scraper blades 12 to adjust the diameter of the threading hole. Compared with directly driving the scraper blades 12 to slide along the radial direction of the threading hole, the scraper blades 12 and the swing arms 21 are less likely to slide out of the end of the support frame 13 due to the small area of the end of the support frame 13, which is beneficial to reduce the occupation of the external area outside the support frame 13 by the movement of the scraper blades 12 and the swing arms 21, thereby reducing the collision damage caused by the swing arms 21 protruding from the support frame 13.

[0050] The end of the limiting block 22 away from the scraper blade 12 is provided with a movable rod 24, the movable rod 24 is plugged into the movable groove 23, the movable groove 23 is an arc-shaped groove, the groove type of the movable groove 23 is limited, so that the rotation angle of the scraper blade 12 caused by the swing arm 21 is offset by the angle change of the scraper blade 12 caused by the swing arm 21.

[0051] When the swing arm 21 rotates, the scraper blade 12 rotates with the swing arm 21, forming the revolution state of the scraper blade 12. At this time, the swing arm 21 rotates, and the scraper blade 12 rotates with the swing arm 21, so that the blade tip deviates from the center of the threading hole. Therefore, the scraper blade 12 needs to rotate synchronously by a certain angle to make the blade tip always align with the center of the threading hole. When the swing arm 21 rotates, the movable rod 24 is driven to rotate by the limiting block 22. At the same time, due to the change of the relative position between the scraper blade 12 and the movable groove 23, the movable rod 24 synchronously slides in the movable groove 23. Due to the length limitation of the limiting block 22 and the groove limitation of the movable groove 23, the scraper blade 12 rotates, that is, the blade tip of the scraper blade 12 is always aligned with the center of the threading hole, so that the scraper blade 12 maintains stable line scraping and paint stripping operation.

[0052] With reference to Figure 3 and Figure 4 In this embodiment, the adjusting member 3 includes a driving motor 31 and an adjusting cone. The adjusting cone vertically penetrates the end face of the support frame 13. The driving motor 31 drives the adjusting cone to slide along the length direction of the adjusting cone, so as to adjust the distance between the tapered part of the adjusting cone and the end face of the support frame 13. The three limiting blocks 22 are in abutment with the adjusting cone.

[0053] The driving motor 31 drives the adjusting cone to slide along the support frame 13, so that the length of the adjusting cone protruding from the end face of the support frame 13 changes. Since the limiting block 22 is in abutment with the adjusting cone, the minimum distance that the adjacent limiting block 22 can approach is limited, and the distance that the three scraper blades 12 can approach each other is limited, so as to adjust the diameter of the threading hole.

[0054] In this embodiment, the adjusting cone is a circular cone, and the support frame 13 is provided with a through hole 32 for the end part of the adjusting cone to pass out.

[0055] In other embodiments, the adjusting cone can also be a triangular cone. When the adjusting cone is set as a polygonal cone, the number of tapered surfaces of the cone corresponds to the number of scraper blades 12, and each tapered surface is opposite to one scraper blade 12.

[0056] With reference to Figure 2 and Figure 3 In this embodiment, the limiting member 2 includes a synchronous belt 25, three internal gears 26, and three elastic members. The three internal gears 26 are all internally engaged with the inner periphery of the synchronous belt 25, and the elastic members push the three scrapers to move towards each other.

[0057] When the length of the surface of the support frame 13 extended by the adjusting cone is lengthened, the limiting block 22 is pushed by the adjusting cone, so that the swing arms 21 move towards the direction of moving away from each other, and the elastic member is compressed. When one of the internal gears 26 is forced to rotate, the synchronous belt 25 engaged with the internal gear 26 is synchronously rotated, and in turn drives the remaining three internal gears 26 to rotate, so that the three swing arms 21 can stably maintain the motion state of synchronous rotation, avoiding the situation that one of the swing arms 21 is stuck and difficult to rotate, and facilitating to improve the structural compactness of the driving structure of the swing arms 21.

[0058] With reference to Figure 2 And Figure 5 In other embodiments, the limiting member 2 comprises an external gear 27, three internal gears 26 and an elastic member, the three internal gears 26 are all internally engaged with the inner periphery of the external gear 27, and the elastic member pushes the three scrapers to move towards the direction of moving close to each other, and the elastic member is always in a compressed state.

[0059] When the length of the surface of the support frame 13 extended by the adjusting cone is lengthened, the limiting block 22 is pushed by the adjusting cone, so that the swing arms 21 move towards the direction of moving away from each other, and the elastic member is compressed. When one of the internal gears 26 is forced to rotate, the external gear 27 engaged with the internal gear 26 is synchronously slid, and in turn drives the remaining three internal gears 26 to rotate, so that the three swing arms 21 can stably maintain the motion state of synchronous rotation, avoiding the situation that one of the swing arms 21 is stuck and difficult to rotate, and facilitating to improve the structural compactness of the driving structure of the swing arms 21.

[0060] In the embodiment, the elastic member is a tension spring, and the two ends of the tension spring are respectively supported on the end surface of the support frame 13 and the swing arm 21.

[0061] A scraping line paint removal method, comprising the following steps:

[0062] S1: clamping the paint coated line on the clamp, and starting the driving motor to make the scrapers move away from each other;

[0063] S2: starting the clamp to drive the paint coated line to move close to the scraping line assembly, so that the paint coated line penetrates into the threading hole;

[0064] S3: starting the driving motor to make the adjusting cone move away from the scrapers, and the elastic member applies pressure to the swing arm to make the plurality of scrapers move close to each other, so that the cutting edges of the scrapers abut against the paint coated line;

[0065] S4: starting the clamp to drive the paint coated line to rotate, and at the same time, drive the paint coated line to move away from the scraping line assembly, so that the paint of the paint coated line is scraped off

[0066] In other embodiments, the elastic member can also be a torsion spring sleeved on the rotating shaft of the swing arm 21.

[0067] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A paint stripping device, characterized in that: include The wire scraping assembly includes multiple scraper columns and scraper blades. The scraper blades are located at the ends of the scraper columns, and the tips of the multiple scraper blades are distributed around the same circumference. The tips of the multiple scraper blades surround to form a threading hole for the enamel-coated wire to pass through. When the enamel-coated wire is located in the threading hole, the enamel-coated wire rotates relative to the threading hole. A limiting component that restricts the tips of multiple scraper blades from pointing to the same circumferential center; Adjustable component, used to adjust the diameter of the threading hole; The scraping assembly includes a support frame, and the limiting component includes a swing arm. The number of swing arms is set according to the number of scraper blades. The scraper blades are located at the ends of the swing arms, and the swing arms are rotatably connected to one end face of the support frame. The limiting component also includes multiple limiting blocks and a movable groove. The number of limiting blocks is set according to the number of scraper blades. The scraper column is rotatably connected to the end of the swing arm. The scraper column is fixed relative to one end of the limiting block. A movable rod is provided at the end of the limiting block away from the scraper blade. The movable rod is inserted into the movable groove. The movable groove is an arc-shaped groove. The movable rod and the movable groove cooperate to drive the scraper column to rotate to counteract the angle change caused by the revolution of the swing arm. The limiting block is located on the side of the swing arm away from the scraper blade, and the side of the swing arm away from the scraper blade abuts against the side of the limiting block near the scraper column. The scraper column passes through the swing arm and through the limiting block. The adjusting component includes an adjusting cone, which is slidably connected to the support frame. The adjusting cone penetrates vertically through the end face of the support frame, and the plurality of limiting blocks abut against the adjusting cone. The limiting component includes a timing belt, multiple internal gears, and an elastic element. The multiple internal gears are all internally meshed with the inner circumference of the timing belt. When one of the internal gears is subjected to force and rotates, the timing belt meshing with it rotates synchronously, thereby driving the remaining internal gears to rotate, so that the swing arm can stably maintain a synchronous rotational motion state. The number of internal gears is set according to the number of scraper blades. The elastic element pushes the multiple scraper blades to move towards each other.

2. A paint stripping device, characterized in that: include The wire scraping assembly includes multiple scraper columns and scraper blades. The scraper blades are located at the ends of the scraper columns, and the tips of the multiple scraper blades are distributed around the same circumference. The tips of the multiple scraper blades surround to form a threading hole for the enamel-coated wire to pass through. When the enamel-coated wire is located in the threading hole, the enamel-coated wire rotates relative to the threading hole. A limiting component that restricts the tips of multiple scraper blades from pointing to the same circumferential center; Adjustable component, used to adjust the diameter of the threading hole; The scraping assembly includes a support frame, and the limiting component includes a swing arm. The number of swing arms is set according to the number of scraper blades. The scraper blades are located at the ends of the swing arms, and the swing arms are rotatably connected to one end face of the support frame. The limiting component also includes multiple limiting blocks and a movable groove. The number of limiting blocks is set according to the number of scraper blades. The scraper column is rotatably connected to the end of the swing arm. The scraper column is fixed relative to one end of the limiting block. A movable rod is provided at the end of the limiting block away from the scraper blade. The movable rod is inserted into the movable groove. The movable groove is an arc-shaped groove. The movable rod and the movable groove cooperate to drive the scraper column to rotate to counteract the angle change caused by the revolution of the swing arm. The limiting block is located on the side of the swing arm away from the scraper blade, and the side of the swing arm away from the scraper blade abuts against the side of the limiting block near the scraper column. The scraper column passes through the swing arm and through the limiting block. The adjusting component includes an adjusting cone, which is slidably connected to the support frame. The adjusting cone penetrates vertically through the end face of the support frame, and the plurality of limiting blocks abut against the adjusting cone. The limiting component includes an external gear, multiple internal gears, and an elastic element. The multiple internal gears are all internally meshed with the inner circumference of the external gear. When one of the internal gears is subjected to force and rotates, the external gear meshing with it rotates synchronously, thereby driving the remaining internal gears to rotate, so that the swing arm can stably maintain a synchronous rotational motion state. The number of internal gears is set according to the number of scraper blades. The elastic element pushes the multiple scraper blades to move in a direction that brings them closer to each other.

3. The paint stripping device according to claim 1 or 2, characterized in that: The elastic element is a tension spring, and the two ends of the tension spring are respectively connected to the end face of the support frame and the swing arm.

4. The paint stripping device according to claim 1 or 2, characterized in that: The elastic element is a torsion spring, which is sleeved on the pivot of the swing arm.

5. A method for removing paint by scraping lines, using the paint removal device according to claim 1, characterized in that: S1: Clamp the enameled wire onto the fixture and start the drive motor to make the scraper blades move away from each other; S2: Start the clamp to bring the enameled wire closer to the wire scraping assembly, so that the enameled wire is inserted into the wire threading hole; S3: Start the drive motor to make the adjusting cone move away from the scraper blade. The elastic element applies pressure to the swing arm to make multiple scraper blades move closer to each other, so that the tips of the scraper blades press against the coating line. S4: Start the clamp, which causes the clamp to rotate the enamel-coated wire and move it away from the scraping assembly, so that the enamel coating on the wire is scraped off.

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