Compound mechanical device for removing copper wire paint layer

Abstract

The present invention discloses a composite mechanical copper wire paint removal device, comprising a fixed knife seat, a fixed knife, a movable knife seat and a movable knife for cutting off a specified section of the paint layer on the copper wire, wherein the fixed knife is fixed on the fixed knife seat, a first through hole for the copper wire to pass through is provided on the fixed knife, a clearance opening is provided on the side wall of the fixed knife, the clearance opening cooperates with the first through hole so that the copper wire is exposed to the outside of the first through hole when passing through a portion corresponding to the clearance opening, the movable knife seat is connected to the movable knife, the movable knife cooperates with the side wall of the fixed knife, and further comprises a paint layer cutting mechanism, which pre-cuts the paint layer of the specified section before the movable knife cuts it off to form a smooth paint layer incision. After the paint layer is removed by the present invention, burrs and burrs can be avoided from being left at the cut-off portion.

Description

Technical Field

[0001] The present invention relates to the technical field of enameled wire enamel layer treatment, and particularly relates to a device for removing the enamel layer of a composite mechanical copper wire. Background Art

[0002] At present, the main methods for removing the enamel skin of flat copper wires are mechanical enamel removal, chemical enamel removal, and laser enamel removal. Due to the capillary action of the liquid, the demarcation line of enamel removal is blurred and the height fluctuates unevenly. Also, due to the volatilization and adhesion of chemical reagents, in most cases, it will cause damage to other places where enamel removal is not required or bring the risk of subsequent film rupture. Moreover, the chemical reagents themselves are not environmentally friendly, making it difficult to apply them in the removal of enamel skin from flat copper wires. The two main problems of laser enamel removal are very low economy and efficiency. The mainstream is mechanical enamel removal. Mechanical enamel removal also has the following problems that are difficult to solve in the industry.

[0003] 1. Tool rigidity: During the process of punching the enamel skin, the slip of the copper material and the deformation of the blade itself will form a wedge shape, causing the blade to expand outwards.

[0004] 2. Tool material and heat treatment: Among the commonly used materials at present, the service life is basically extremely limited. Due to the high machining accuracy of the tool, the loss cost of the tool is further increased.

[0005] 3. After the enamel skin is cut off, at the demarcation line between the removed position and the non-removed position, it is easy to form film tearing and burrs.

[0006] 4. During the conveying process of the copper wire, the wire passing hole should be larger than the size of the copper wire itself, but this will cause asymmetry during the enamel removal of the copper wire, resulting in thicker removal on one side and thinner removal on the other side. Summary of the Invention

[0007] The present invention provides a device for removing the enamel layer of a composite mechanical copper wire. After the enamel layer is removed by the present invention, burrs and flash can be avoided at the cutting site.

[0008] The technical solutions for solving the above problems are as follows:

[0009] A device for removing the enamel layer of a composite mechanical copper wire, including a fixed knife seat, a fixed knife, a moving knife seat, and a moving knife for cutting off the enamel layer of a specified section on the copper wire. The fixed knife is fixed on the fixed knife seat. The fixed knife is provided with a first through hole for the copper wire to pass through. A relief opening is also provided on the side wall of the fixed knife. The relief opening cooperates with the first through hole to expose the copper wire outside the first through hole when the copper wire passes through the part corresponding to the relief opening. The moving knife seat is connected to the moving knife, and the moving knife cooperates with the side wall of the fixed knife. It also includes an enamel layer cutting mechanism, which pre-cuts a specified section of the enamel layer to form a flat enamel layer incision before the enamel layer is cut off by the moving knife.

[0010] In the present invention, first, a notch is formed in the specified section of the paint layer by a paint layer cutting mechanism. Since the notch is flat, the boundary between the removal position and the non-removal position is clear. When the moving knife cuts the specified section of the paint layer, it avoids tearing the paint layer by the moving knife and forming burrs at the end of the specified section of the paint layer. Therefore, the quality of paint layer removal is improved. The present invention is particularly suitable for removing the paint layer on flat copper wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a sectional view of a composite mechanical device for removing the paint layer on a copper wire;

[0012] Figure 2 is a sectional view of the composite mechanical device for removing the paint layer on a copper wire in another direction;

[0013] Figure 3 is a three-dimensional view of the composite mechanical device for removing the paint layer on a copper wire;

[0014] Figure 4 is a schematic diagram after hiding a part of the parts on the basis of Figure 3 ;

[0015] Figure 5 is a schematic diagram of the cooperation between the fork and the guide seat;

[0016] Figure 6 is a schematic diagram of the tool holder;

[0017] Figure 7 is a three-dimensional view of the guide seat;

[0018] Figure 8 is a three-dimensional view of the fixed knife;

[0019] Figure 9 is a three-dimensional view of the moving knife;

[0020] Figure 10 is a three-dimensional view of the paint-breaking knife;

[0021] Marks in the drawings:

[0022] Copper wire A, fixed knife seat 1, support seat 1a, guide seat 1b, first opening 1c, step 1d, sliding space 1e, first relief hole 1f, second relief hole 1g, slideway 1h, fixed knife 2, first through hole 2a, relief opening 2b, guiding part 2c, lubricating oil groove 2d, moving knife seat 3, moving knife 4, moving knife body 4a, cutting edge 4b, assembly groove 4c, paint-breaking knife 5, paint-breaking knife rod 5a, paint-breaking knife edge 5b, fork 6, inclined surface 6a, clamping member 7, first hole section 7a, second hole section 7b, hoop 8, air guide channel 8a, paint residue purging member 9, connecting block 10. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 10 As shown, the composite mechanical copper wire paint removal device of the present invention comprises a fixed knife seat 1, a fixed knife 2, a movable knife seat 3, a movable knife 4 for cutting off a specified section of the paint layer on the copper wire A, and a paint layer cutting mechanism. The fixed knife 2 is fixed on the fixed knife seat 1. The fixed knife 2 is provided with a first through hole 2a for the copper wire A to pass through. The side wall of the fixed knife 2 is also provided with a clearance opening 2b. The clearance opening 2b cooperates with the first through hole 2a so that the copper wire A is exposed outside the first through hole 2a when passing through the portion corresponding to the clearance opening 2b. The movable knife seat 3 is connected to the movable knife 4. The movable knife 4 cooperates with the side wall of the fixed knife 2. The paint layer cutting mechanism pre-cuts the paint layer of the specified section before the movable knife 4 cuts it to form a smooth paint layer incision. In this embodiment, there are two paint layer cutting mechanisms, which are symmetrically arranged at both ends of the clearance opening 2b.

[0025] A guide portion 2c is provided on the fixed knife 2, and the movable knife seat 3 is slidably matched with the guide portion 2c. A lubricating oil groove 2d is also provided on the guide portion 2c, and the lubricating oil groove 2d provides lubricating oil for the sliding of the guide portion 2c, the movable knife seat 3, the movable knife 4 and the paint layer cutting mechanism, which is beneficial to improve the service life of the movable knife 4 and the paint layer cutting mechanism.

[0026] The designated section of the paint layer is the section of the paint layer to be removed by the driven knife 4. In the present invention, an incision is first formed on the designated section of the paint layer by the paint layer cutting mechanism, and because the incision is smooth, a clear boundary between the removal position and the position that does not need to be removed is achieved. When the driven knife 4 cuts off the designated section of the paint layer, it avoids the moving knife 4 tearing the paint layer and forming burrs at the end of the designated section of the paint layer, thereby improving the quality of paint layer removal.

[0027] In this embodiment, the cut positions formed by the paint layer cutting mechanism on the specified section of the paint layer are located at both ends of the specified section of the paint layer. Assuming that the length of the specified section of the paint layer to be removed is 10 cm, after the paint layer cutting mechanism pre-cuts the specified section of the paint layer, the length of the paint layer between the two cuts is 9.9 cm, which is basically close to 10 cm. Therefore, when the movable knife 4 subsequently cuts off the paint layer of the specified section of the paint layer, since the paint layer of the specified section is separated from the paint layers on the left and right sides of the copper wire A at the cut, even if the movable knife 4 tears the paint layer, it will not affect the neatness of the paint layer on the side of the cut.

[0028] The paint layer cutting mechanism is fixed to the moving tool holder 3 or the moving tool 4, and the paint layer cutting mechanism follows the feeding or retracting of the moving tool holder 3 or the moving tool 4. In this embodiment, the moving tool 4 includes a moving tool body 4a and a cutting edge 4b. Preferably, cutting edges 4b are provided at both ends of the moving tool body 4a. The shape of the cutting edge 4b preferably adopts a V shape. When removing the paint layer, the V-shaped cutting edge 4b acts on the paint layer step by step from top to bottom along the inclined plane. In this way, under the same acting force, the pressure formed by the cutting edge 4b on the paint layer is large, and it is easier to separate the paint layer from the copper wire. The V-shaped cutting edge 4b can be ground, which can reduce the material cost and grinding time cost of the tool. An assembly groove 4c is provided on the body 4a, and the assembly groove 4c is located on the side wall surface of the body 4a.

[0029] In this embodiment, the paint layer cutting mechanism is preferably fixed to the moving tool 4. The paint layer cutting mechanism includes a paint breaking knife 5, and the paint breaking knife 5 is slidably matched with the fixed tool 2. The paint breaking knife 5 includes a paint breaking knife rod 5a and a paint breaking cutting edge 5b. One end of the paint breaking cutting edge 5b is fixed to one end of the paint breaking knife rod 5a. The cross section of the paint breaking cutting edge 5b is triangular, and the triangular paint breaking cutting edge 5b can also be ground. Among them, after the paint breaking knife rod 5a is fitted in the assembly groove 4c, the paint breaking knife rod 5a is connected to the moving tool 4 as a whole, and the paint breaking cutting edge 5b is located outside the assembly groove 4c.

[0030] When it is necessary to remove the paint layer of a specified section, the paint layer cutting mechanism moves together with the moving tool 4. Since in the downward direction of the moving tool 4, the paint breaking cutting edge 5b is located upstream of the cutting edge 4b, therefore, the paint breaking cutting edge 5b first pre-cuts the paint layer of the specified section to cut through the paint layer of the specified section and form a flat incision, and then the moving tool 4 cuts the paint layer of the specified section, so as to achieve the purpose of pre-cutting first and then cutting. In this way, after the paint layer of the specified section is separated from the copper wire A, no burrs or flash will be left at the incision.

[0031] When the paint layer cutting mechanism or the moving tool 4 cuts the paint layer of a specified section of the copper wire A, at this time, the copper wire A is in a clearance fit state with the first through hole 2a. Therefore, for the copper wire A, there is no corresponding binding force at both ends, so the copper wire A is in a relaxed state. Furthermore, when cutting the paint layer, it may cause the cutting of the paint layer of the specified section to be incomplete. Therefore, in the present invention, a clamping mechanism for clamping the copper wire A when removing the paint layer on the copper wire A is also provided. Clamping mechanisms are provided on the outer sides of the input end and the output end of the first through hole 2a. Through the clamping force generated by the clamping mechanism on the copper wire A, the copper wire A is in a tensioned state, so that during the cutting process, it is beneficial for the moving tool 4 to cut the paint layer cleanly.

[0032] For the clamping mechanism, it can be set separately. When set separately, a driving mechanism needs to be configured separately. It can also be selected to be linked with the moving cutter 4 and the paint layer cutting mechanism. In the present invention, the way of linking the clamping mechanism with the moving cutter 4 and the paint layer cutting mechanism is preferably adopted. In this way, not only can the clamping mechanism, the moving cutter 4 and the paint layer cutting mechanism share the same driving mechanism, but also the device structure and manufacturing cost can be simplified.

[0033] The clamping mechanism in the present invention includes a fork 6 and a clamping member 7. One end of the fork 6 is connected to the moving cutter seat 3, and a plurality of inclined surfaces 6a are provided at the other end of the fork 6; a through hole is provided on the clamping member 7, and the through hole is composed of a first hole section 7a and a second hole section 7b. At least one inner wall surface of the first hole section 7a and the second hole section 7b is an inclined surface, and the other end of the fork 6 is matched with the through hole. There are two clamping members 7, and the two clamping members 7 are located on both sides of the copper wire A.

[0034] When the fork 6 moves downward along the copper wire (seen from the figure) under the drive of the moving cutter seat 3, the inclined surface 6a on the fork 6 cooperates with the inclined surfaces of the first hole section 7a and the second hole section 7b. The fork 6 makes the two clamping members 7 approach the copper wire A, and finally forms a clamping action on the copper wire A. When the fork 6 moves upward along the copper wire A under the drive of the moving cutter seat 3, the fork 6 makes the two clamping members 7 gradually move away from the copper wire A, and the clamping of the clamping member 7 on the copper wire A is released.

[0035] In this embodiment, the fixed cutter seat 1 includes two support seats 1a and a guide seat 1b. A first opening 1c penetrating through two opposite end faces of the support seat 1a is provided on each support seat 1a. A step 1d is provided in the first opening 1c. Two ends of the fixed cutter 2 are respectively matched with one end of the first opening 1c. The guide seat 1b is located in the first opening 1c and supported on the step 1d. A sliding space 1e is provided on the guide seat 1b, and a part of the clamping mechanism is located in the sliding space 1e of the guide seat 1b. In this embodiment, the clamping member 7 is located in the sliding space 1e of the guide seat 1b and is slidably matched with the guide seat 1b. A first relief hole 1f and a second relief hole 1g are provided on the guide seat 1b. The first relief hole 1f is for the fork 6 to pass through, that is, the fork 6 passes through the first relief hole 1f and is matched with the clamping member 7. The second relief hole 1g is for the copper wire A to pass through, that is, after the copper wire A passes through the second relief hole 1g, it enters the first through hole 2a. A slideway 1h is formed in the first opening 1c, and the fork 6 is slidably matched with the slideway 1h.

[0036] When the fork 6 generates a radial force on the clamping member 7, through the guiding action formed by the guiding seat 1b on the clamping member 7, the clamping member 7 moves closer to or away from the copper wire A. The clamping member 7 is regularly opened and closed by the fork 6. When the copper wire A needs to be conveyed, the clamping member 7 is fully opened and the copper wire A can be freely conveyed. When the copper wire A needs to be bundled in the middle, the clamping member 7 is linked by the fork 6, and the clamping member 7 clamps the copper wire A to ensure the symmetry of the left and right thicknesses of the stripped paint of the copper wire A.

[0037] The present invention further includes a hoop 8. After the fixed knife 2 and the moving knife seat 3 respectively pass through the hoop 8, the moving knife seat 3 is fixed to the hoop 8. The hoop 8 is used to limit the overall outward expansion of the moving knife seat 3 during the paint stripping process, so as to maintain the shape of the moving knife seat 3.

[0038] The present invention further includes a paint residue blowing component 9. An air guiding channel 8a is provided on the hoop 8. The paint residue blowing component 9 is connected to the input port of the air guiding channel 8a, and the output port of the air guiding channel 8a faces the fixed knife 2. The paint residue blowing component 9 includes a pipeline and a compressed gas supply component (not shown in the figure). The compressed gas supply component is connected to one end of the pipeline, and the other end of the pipeline is connected to the input port of the air guiding channel 8a.

[0039] The compressed air output by the compressed gas supply component enters the air guiding channel 8a through the pipeline and then is output from the air guiding channel 8a. Since the air guiding channel 8a is located on the hoop 8 and the hoop 8 moves with the moving knife seat 3, when the hoop 8 moves, the compressed gas output from the air guiding channel 8a blows the fixed knife 2, and further blows the paint residue formed after the moving knife 4 cuts the paint layer.

[0040] The present invention further includes a connecting block 10. The connecting block 10 is fixedly connected to the moving knife seat 3, and the connecting block 10 is connected to a driver (not shown in the figure). The driver can be a cylinder, an oil cylinder, an electric lead screw, etc. When the driver outputs power and acts on the connecting block 10, the connecting block 10 drives the moving knife seat 3 to move, and then the moving knife 4, the paint breaking knife 5 and the fork 6 are linked. First, the paint breaking knife 5 cuts the paint layer, and then the moving knife 4 cuts the specified section of the paint layer. While the paint breaking knife 5 cuts the paint layer, the fork 6 drives the clamping member 7 to clamp the copper wire.

[0041] Finally, it should be noted that the above embodiments are only relatively preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting it, let alone limiting the protection scope of the present invention; 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 on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the claims.

Claims

1. Compound mechanical copper wire paint layer removing device, comprising a fixed knife seat (1), a fixed knife (2), a moving knife seat (3) and a moving knife (4) for cutting off the paint layer of a specified section on the copper wire (A). The fixed knife (2) is fixed on the fixed knife seat (1). A first through hole (2a) for the copper wire (A) to pass through is provided on the fixed knife (2). A relief opening (2b) is further provided on the side wall of the fixed knife (2). The relief opening (2b) cooperates with the first through hole (2a) so that the copper wire (A) is exposed outside the first through hole (2a) when passing through the part corresponding to the relief opening (2b). The moving knife seat (3) is connected to the moving knife (4), and the moving knife (4) cooperates with the side wall of the fixed knife (2), characterized in that, It further includes a paint layer cutting mechanism which pre-cuts the paint layer of a specified section to form a flat paint layer incision before the passive knife (4) cuts it. The paint layer cutting mechanism includes a paint-breaking knife (5). The paint-breaking knife (5) is slidably engaged with the fixed knife (2). The paint-breaking knife (5) includes a paint-breaking knife rod (5a) and a paint-breaking knife edge (5b). One end of the paint-breaking knife edge (5b) is fixed to one end of the paint-breaking knife rod (5a). The cross-section of the paint-breaking knife edge (5b) is triangular. It further includes a clamping mechanism for clamping the copper wire when removing the paint layer on the copper wire (A). Clamping mechanisms are provided on the outer sides of the input end and the output end of the first through hole (2a). A fork (6), one end of the fork (6) is connected to the moving knife seat (3), and the other end of the fork (6) is provided with a plurality of inclined surfaces. A clamping member (7), the clamping member (7) is provided with a through hole which is composed of a first hole section (7a) and a second hole section (7b). At least one inner wall surface of the first hole section (7a) and the second hole section (7b) is an inclined surface. The other end of the fork (6) is engaged with the through hole.

2. The removing device for the composite mechanical copper wire paint layer according to claim 1, characterized in that, The incision position formed by the paint layer cutting mechanism on the specified section of the paint layer is located at both ends of the specified section of the paint layer.

3. The removing device for the composite mechanical copper wire paint layer according to claim 1, characterized in that, The paint layer cutting mechanism is fixed to the moving knife seat (3) or the moving knife (4), and the paint layer cutting mechanism follows the feeding or retracting of the moving knife seat (3) or the moving knife (4).

4. The removal device for the composite mechanical copper wire paint layer according to claim 1, wherein, The fixed knife seat (1) includes two support seats (1a) and a guide seat (1b). Each support seat (1a) is provided with a first opening (1c) penetrating through two opposite end faces of the support seat (1a). A step (1d) is provided in the first opening (1c). The two ends of the fixed knife (2) are respectively engaged with one end of the first opening (1c). The guide seat (1b) is located in the first opening (1c) and supported on the step (1d). The guide seat (1b) is provided with a sliding space, and a part of the clamping mechanism is located in the sliding space of the guide seat (1b).

5. The removing device for the composite mechanical copper wire paint layer according to claim 1, characterized in that, It further includes a hoop (8). After the fixed knife (2) and the moving knife seat (3) respectively pass through the hoop (8), the moving knife seat (3) is fixed to the hoop (8).

6. The removing device for the composite mechanical copper wire paint layer according to claim 5, characterized in that, It further includes a paint slag blowing component (9). The hoop (8) is provided with an air guiding channel (8a). The paint slag blowing component (9) is connected to the input port of the air guiding channel (8a), and the output port of the air guiding channel (8a) faces the fixed knife (2).

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