Device for stripping insulating layer

Abstract

The utility model discloses a device for stripping an insulating layer, which belongs to the technical field of cable stripping and specifically comprises a pretreatment mechanism, a separation mechanism and a material receiving mechanism. The pretreatment mechanism comprises a calender and a heating assembly, and the heating assembly is arranged on the rear side of the calender; the separating mechanism comprises a stripping machine and a separating machine; the separator is arranged on the rear side of the stripping machine, a mold is arranged at an inlet of the separator, a mold inlet matched with the size of a wire in the calendered insulated wire is formed in the mold, and the mold inlet is used for separating the cut insulated wire to obtain the wire and two insulating layers; the material collecting mechanism comprises a wire collecting machine and an insulating layer collecting machine. The device provided by the utility model can be used for efficiently treating waste insulated wires and separating insulating layers from wires, so that the insulating layers and the wires can be conveniently and respectively recycled, the damage rate of a die on a separator can be obviously reduced, and the service life of the die can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable stripping, and more specifically, to a device for stripping an insulation layer. Background Art

[0002] Currently in the industry, the methods for removing the insulating paint layer on insulated wires include: scraping paint removal, concentrated sulfuric acid paint stripping, high-efficiency paint stripping agents, laser paint stripping, and wire grinding machine paint removal. The above methods are only suitable for local paint removal and cannot handle waste wires on a large scale.

[0003] For insulated wires produced by extrusion technology, especially those with polyetheretherketone insulation, polyetheretherketone is expensive and can be used for many purposes after recycling, so it has a high recycling value. However, since polyetheretherketone is resistant to high temperature and chemical corrosion, and has very good adhesion to the conductor, it is difficult for general insulating paint removal equipment to be applied.

[0004] For discarded polyetheretherketone insulated wires, the insulation layer cannot be removed efficiently, resulting in the copper conductors being unable to be properly recycled. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a device for stripping the insulation layer, which can efficiently and residue-free separate the insulation layer and the conductor in the discarded polyetheretherketone insulated wire, thereby facilitating the recovery of the insulation layer and the conductor.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0007] A device for stripping an insulating layer, comprising: a pre-processing mechanism, a separation mechanism and a material receiving mechanism;

[0008] The pretreatment mechanism includes a calender and a heating assembly, wherein the calender is used to calender the insulated wire, and the heating assembly is arranged at the rear side of the calender and is used to heat the insulated wire;

[0009] The separation mechanism is arranged at the rear side of the heating assembly, and includes a stripper and a separator. The stripper is used to cut the insulation layers on the upper and lower surfaces of the insulated wire after calendering and heat treatment; the separator is arranged at the rear side of the stripper, and a mold is arranged at the entrance of the separator. The mold is provided with a mold entrance adapted to the size of the wire in the insulated wire after calendering, and is used to separate the cut insulated wire into the wire and two insulation layers;

[0010] The material receiving mechanism comprises a wire receiving machine for receiving the separated wires and an insulation layer receiving machine for receiving the separated insulation layer.

[0011] Furthermore, a wire-paying machine and a first tensioning machine are also provided on the front side of the calender, and the first tensioning machine is located between the wire-paying machine and the calender.

[0012] Furthermore, a second tensioning machine is provided between the wire taking-up machine and the separator.

[0013] Furthermore, the insulation layer collecting machine is located between the front side of the separator and the rear side of the stripping machine.

[0014] Furthermore, the stripping machine includes a base, on which two relatively distributed brackets are provided, and an upper cutting assembly and a lower cutting assembly are installed between the two brackets. The upper cutting assembly includes an upper handle and an upper blade connected to the upper handle, and the lower cutting assembly includes a lower handle and a lower blade connected to the lower handle.

[0015] Further, the upper cutting assembly further comprises an upper handle clamping block detachably connected to the upper handle, an upper step portion is formed at the lower end of the upper handle, the upper handle clamping block and the upper blade are both arranged at the upper step portion, and the upper blade is located between the upper handle clamping block and the side wall of the upper step portion;

[0016] The lower cutting assembly also includes a lower handle clamping block detachably connected to the lower handle, a lower step portion is formed at the upper end of the lower handle, the lower handle clamping block and the lower blade are both arranged at the lower step portion, and the lower blade is located between the lower handle clamping block and the side wall of the lower step portion.

[0017] Furthermore, the upper ends of the two brackets are commonly connected to a top plate, a clamping adjustment rod is threadedly provided on the top plate, and the bottom of the clamping adjustment rod is connected to the upper tool handle;

[0018] A sliding groove is longitudinally provided on the two brackets, a sliding rod is horizontally passed through the lower knife handle, and two ends of the sliding rod are slidably matched with the sliding groove.

[0019] Furthermore, a pressing block is provided on the top of the upper handle, and the bottom of the clamping adjustment rod is threadedly connected to the pressing block.

[0020] Furthermore, a handle adjusting rod is connected between the upper handle and the lower handle.

[0021] Furthermore, the handle adjustment rods are arranged on both the front and rear sides of the upper handle and the lower handle, and there are at least two handle adjustment rods on each side.

[0022] The beneficial effects of the utility model are:

[0023] The device provided by the utility model firstly calenders the insulated wire through a calender so that a large cross-section deformation occurs on the insulated wire, so as to destroy the adhesion between the insulating layer and the conductor; then the insulated wire is heated by a heating component to soften the insulating layer, so as to facilitate the subsequent stripping machine to cut the insulating layer with a blade; then the stripping machine is used to cut the upper and lower surfaces of the insulated wire so that the insulating layer is cut open; then the insulating layer is stripped with the aid of a mold on a separator, so as to obtain the separated insulating layer and the conductor; the device provided by the utility model can efficiently process the discarded insulated wire, separate the insulating layer from the conductor, so as to facilitate the separate recovery of the insulating layer and the conductor, and can significantly reduce the damage rate of the mold on the separator, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a device for stripping an insulating layer of the utility model.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the stripping machine in the utility model.

[0026] Figure 3 It is a side structural schematic diagram of the stripping machine in the utility model.

[0027] Figure 4 It is a structural schematic diagram of the mold in the separator of the utility model.

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the insulated wire after rolling deformation in the utility model.

[0029] In the figure,

[0030] 1. Pay-off machine; 2. First tensioning machine; 3. Calender; 4. Heating assembly; 5. Stripping machine; 51. Base; 52. Bracket; 53. Upper cutting assembly; 531. Upper knife handle; 532. Upper blade; 533. Upper knife handle pressing block; 534. Upper step;

[0031] 54, lower cutting assembly; 541, lower knife handle; 542, lower blade; 543, lower knife handle clamping block; 544, lower step portion; 55, top plate; 56, clamping adjustment rod; 57, slide groove; 58, slide rod; 59, knife handle adjustment rod; 5a, clamping block;

[0032] 6. Separator; 61. Mold; 611. Mold core; 612. Mold sleeve; 613. Mold inlet; a. First chamfer; b. Second chamfer;

[0033] 7. Wire take-up machine; 8. Insulation layer take-up machine; 9. Second tensioning machine;

[0034] 100, insulated wire; 110, conductor wire; 120, insulating layer; 120a, side A; 120b, side B. DETAILED DESCRIPTION

[0035] The solution provided by the utility model is explained and illustrated in detail below in conjunction with the accompanying drawings of the specification.

[0036] refer to Figures 1 to 5 As shown, this embodiment provides a device for stripping an insulation layer, specifically, stripping an insulation layer 120 in an insulated wire 100, wherein the cross section of the insulated wire 100 is as shown in FIG. Figure 5 As shown, it includes a central conductor 110 and an insulating layer 120 wrapped around the outer periphery of the conductor 110; the device provided in this embodiment is used to peel off and separate the insulating layer 120 wrapped around the outer periphery of the conductor 110 for recycling;

[0037] In this embodiment, the device for stripping the insulation layer specifically includes a pre-processing mechanism, a separation mechanism and a material receiving mechanism;

[0038] The pretreatment mechanism includes a calender 3 for calendering and deforming the insulated wire 100 and a heating component 4 for heating and pretreating the insulated wire 100; in this embodiment, the heating component 4 is arranged at the rear side of the calender 3, and the insulated wire 100 is first calendered by the calender 3, so that the insulated wire 100 undergoes a large cross-sectional deformation, thereby destroying the adhesion between the insulating layer 120 and the conductor 110 in the insulated wire 100, and then the insulated wire 100 after calendering and deformation is softened by the heating component 4, so as to facilitate the subsequent stripping machine 5 to cut the insulating layer 120; of course, in some other embodiments, the calender 3 can also be arranged at the rear side of the heating component 4, that is, the heating and softening treatment is first performed and then the calendering and deformation treatment is performed.

[0039] The separation mechanism includes a stripper 5 and a separator 6. The stripper 5 is used to cut the insulation layer 120 on the upper and lower surfaces of the pre-treated insulated wire 100; the separator 6 is arranged at the rear side of the stripper 5, and is combined with the Figure 4 As shown, a mold 61 is provided at the entrance of the separator 6 , and a mold entrance 613 adapted to the size of the conductor 110 in the rolled insulated wire 100 is provided on the mold 61 , for separating the cut insulated wire 100 into the conductor 110 and two insulating layers 120 .

[0040] Specifically, the mold 61 includes a mold core 611 and a mold sleeve 612. The mold core 611 can be detachably inserted into the mold sleeve 612. The mold inlet 613 is opened at the front end of the mold core 611. The outer periphery of the front end of the mold core 611, that is, the outer periphery of the mold inlet 613, is provided with a first chamfer a. The inside of the mold core is provided with a wire hole 614 connected to the mold inlet 613, and the end of the wire hole 614 is provided with a second chamfer b.

[0041] The die inlet 613 can be replaced according to the size specifications of the insulated wire 100 after calendering to adapt to insulated wires 100 of different models and sizes, and is suitable for insulated wires 100 of various specifications. The size of the front end of the wire hole 614 in the mold core 611, that is, the size of the die inlet 613, is smaller than the size of the insulating layer 120 but slightly larger than the size of the wire 110 in the insulating layer 120. Figure 4 The mold core 611 only allows the conductor 110 in the insulated wire 100 to pass through the front end of the wire hole 614, and the insulating layer 120 is blocked by the front end of the mold core 611 on the outside of the mold entrance 613. In the process of the insulated wire 100 continuously passing through the wire hole 614 on the mold core 611, the first chamfer a at the front end of the mold core 611 can form a sharp scraper to continuously scrape off the insulating layer 120, and the second chamfer b at the end of the wire hole 614 can leave appropriate space for the conductor 110 to prevent excessive friction between the conductor 110 and the wire hole 614, thereby facilitating the movement and passage of the conductor 110.

[0042] In this embodiment, a stripping machine 5 is provided at the front end of the separator 6. The stripping machine 5 is used to first cut the upper and lower surfaces of the insulating layer 120, so that the insulating layer 120 is cut into left and right surfaces, namely the A surface 120a and the B surface 120b, and then separated by the mold 61 in the separator 6, which can effectively reduce the damage to the mold core 611 in the mold, thereby extending the service life of the mold core 611.

[0043] Among them, the range of the first chamfer a is 30°~40°, and the range of the second chamfer b is 10°~90°; if the angle of the first chamfer a is too large, the thickness of the front end of the core 611 is thin and the strength is insufficient; if the angle of the first chamfer a is too small, the scraper formed at the front end of the core 611 is not sharp enough, which is easy to cause jamming or accumulation of the insulation layer 120 during the stripping process of the insulated wire. Setting the first chamfer a to 30°~40° can allow the stripped insulation layer 120 to fall off along this angle, avoiding the accumulation of the insulation layer 120, ensuring the continuous operation of the separator 6, and improving the operating efficiency.

[0044] refer to Figure 1 As shown, in some embodiments, a feeding mechanism is also provided on the front side of the calender 3, and the feeding mechanism includes a pay-off machine 1 and a first tensioning machine 2. The first tensioning machine 2 is located between the pay-off machine 1 and the calender 3. The pay-off machine 1 can automatically pay out the insulated wire 100 in the wire drum to realize automated processing and improve processing efficiency. The first tensioning machine 2 is used to tension the insulated wire 100 being processed to facilitate subsequent calendering, heating, and separation.

[0045] Continue to combine Figure 1As shown, the material collection mechanism includes a wire collection machine 7 for collecting the separated wire 110 and an insulation layer collection machine 8 for collecting the separated insulation layer 120. The insulated wire 100 processed by the front feeding mechanism, the pretreatment mechanism, and the separation mechanism is finally separated into the wire 110 and two strip-shaped insulation layers 120, and then the wire 110 is wound and recycled by the wire collection machine 7, and the insulation layer 120 is wound and recycled by the insulation layer collection machine 8. Figure 1 It can be seen that the insulation layer collecting machine 8 is provided with two wire drums for respectively winding up the left and right insulation layers. In the illustrated embodiment, the wire collecting machine 7 is arranged at the rear side of the separator 6, and the insulation layer collecting machine 8 is arranged between the separator 6 and the stripping machine 5, so as to facilitate the recovery of the insulation layer 120 separated on the outside of the mold 61, and the structural arrangement is more compact and reasonable.

[0046] A second tensioning machine 9 is also provided between the separator 6 and the wire take-up machine 7. Combined with the first tensioning machine 2, the two tensioning machines cooperate to tension the insulated wire 100, which can ensure the stability of the wire running and facilitate the calendering, preheating, cutting and separation of the insulated wire 100.

[0047] Combination Figure 2 and Figure 3 As shown, the present embodiment provides a specific structure of a stripping machine 5, which includes a base 51, and two brackets 52 are arranged on the upper end surface of the base 51. An upper cutting assembly 53 and a lower cutting assembly 54 are installed between the two brackets 52. The upper cutting assembly 53 includes an upper handle 531 and an upper blade 532 connected to the upper handle 531, and the lower cutting assembly 54 includes a lower handle 541 and a lower blade 542 connected to the lower handle 541. The upper blade 532 and the lower blade 542 cut the upper and lower surfaces of the insulated wire 100 respectively, so that the insulating layer 120 in the insulated wire 100 can be cut.

[0048] Furthermore, in some embodiments, the upper cutting assembly 53 further includes an upper handle clamping block 533 detachably connected to the upper handle 531, an upper step portion 534 is formed at the lower end of the upper handle 531, the upper handle clamping block 533 and the upper blade 532 are both disposed at the upper step portion 534, and the upper blade 532 is located between the upper handle clamping block 533 and the vertical side wall of the upper step portion 534;

[0049] The lower cutting assembly 54 also includes a lower handle clamping block 543 detachably connected to the lower handle 541, and a lower step portion 544 is formed at the upper end of the lower handle 541. The lower handle clamping block 543 and the lower blade 542 are both arranged at the lower step portion 544, and the lower blade 542 is located between the lower handle clamping block 543 and the vertical side wall of the lower step portion 544.

[0050] It can be understood that the bottom of the upper blade 532, i.e., its blade, extends out of the lower end surface of the upper handle clamping block 533 and the upper handle 531, and the top of the lower blade 542, i.e., its blade, extends out of the upper end surface of the lower handle clamping block 543 and the lower handle 541.

[0051] Specifically, the upper handle clamping block 533 and the upper handle 531 can be detachably connected by bolts, thereby facilitating the disassembly and assembly of the upper blade 532; similarly, the lower handle 541 and the lower handle clamping block 543 can be detachably connected by bolts, thereby facilitating the disassembly and assembly and replacement of the lower blade 542.

[0052] Continue to combine Figure 2 and Figure 3 The upper ends of the two brackets 52 are commonly connected with a top plate 55, and a clamping adjustment rod 56 is threadedly penetrated on the top plate 55. A handle can be provided on the top of the clamping adjustment rod 56 for easy adjustment. The bottom of the clamping adjustment rod 56 is threadedly connected with the upper handle 531. In the illustrated embodiment, a pressure block 5a can be provided on the top of the upper handle 531, and the bottom of the clamping adjustment rod 56 is threadedly connected with the pressure block 5a; a slide groove 57 is longitudinally opened on the two brackets 52, and a slide rod 58 is transversely penetrated on the lower handle 541, and both ends of the slide rod 58 pass through the slide groove 57 and slide with the slide groove 57.

[0053] Specifically, the slide bar is provided on the lower side of the lower blade handle 541 and is located below the lower step 544. The height position of the upper cutting assembly 53 and the lower cutting assembly 54 can be adjusted by adjusting the clamping adjustment rod 56. During the up and down movement, the slide bar 58 can move up and down along the slide slot, so as to facilitate adjusting the up and down position of the blade according to the line position of the insulated wire 100. In order to improve the stability of the upper cutting assembly 53 and the lower cutting assembly 54 on the bracket 52, two slide slots 57 are provided on each bracket 52. Correspondingly, two slide bars 58 are also provided, and the two ends of each slide bar 58 can be connected with positioning nuts after passing through the slide slots 57. When it is necessary to adjust the upper cutting assembly 53 and the lower cutting assembly 54 up and down, after loosening the positioning nuts, adjusting the clamping adjustment rod 56 can drive the upper cutting assembly 53 and the lower cutting assembly 54 to move up and down, thereby adjusting the up and down position of the blade. After adjusting to the appropriate position, tighten the positioning nuts.

[0054] In some embodiments, a handle adjustment rod 59 is connected between the upper handle 531 and the lower handle 541, and the distance between the upper handle 531 and the lower handle 541 can be adjusted according to the size of the insulated wire 100, thereby adjusting the distance between the upper blade 532 and the lower blade 542 to adapt to insulated wires 100 of different sizes.

[0055] Furthermore, handle adjustment rods 59 are provided on the front and rear sides of the upper handle 531 and the lower handle 541, and there are at least two handle adjustment rods 59 on each side, thereby ensuring the consistency of the distance between the upper and lower blades, and the connection between the upper handle 531 and the lower handle 541 is also more stable.

[0056] The specific method for using the device for stripping the insulating layer provided in this embodiment includes the following steps:

[0057] The waste insulated wire 100 is conveyed to the calender 3 via the feeding mechanism, and the insulated wire 100 is calendered by the calender 3;

[0058] The rolled insulated wire 100 is conveyed to the heating assembly 4 to heat and soften the insulated wire 100; the specific heating temperature can be adaptively adjusted according to the material of the insulating layer. In this embodiment, for the insulating layer made of polyetheretherketone, the heating temperature can be set to about 200°C;

[0059] The insulated wire 100 after the heating and softening treatment is conveyed to the stripping machine 5, and the upper and lower surfaces of the insulated wire 100 are cut;

[0060] The cut insulated wire 100 is conveyed to a separator 6, and the cut insulated wire 100 is separated into a conductor 110 and two left and right strip-shaped insulating layers 120 by the separator 6;

[0061] The separated wires 110 are respectively wound and rolled by the wire take-up machine 7 , and the left and right insulation layers 120 are respectively wound and rolled by the insulation layer take-up machine 8 .

[0062] Specifically, the discarded insulated wire 100 is conveyed to the first tensioning machine 2 through the wire unwinding machine 1, and then conveyed to the calender 3. The insulated wire 100 is calendered by the calender 3, so that the insulated wire 100 undergoes a large cross-sectional deformation, thereby destroying the adhesion between the insulating layer 120 and the conductor 110. The insulated wire 100 is then heated by the heating component 4 to soften the insulating layer 120, so that the subsequent stripping machine 5 can cut the insulating layer 120 with a blade. The stripping machine 5 is then used to cut the upper and lower surfaces of the insulated wire 100, so that the insulating layer 120 is cut open. The mold 61 on the separator 6 assists in stripping the insulating layer 120, thereby obtaining the separated insulating layer 120 and the conductor 110. Finally, the separated conductor and insulating layer are respectively wound and recycled by the wire take-up machine 7 and the insulation layer take-up machine 8. In addition, a second tensioning machine is also provided between the wire take-up machine and the separator, that is, the front and rear tensioning machines are used in conjunction to ensure the stability of the line, and facilitate calendering, preheating, cutting and separation. The device provided by the utility model can efficiently process discarded insulated wires and separate the insulation layer from the wire, thereby facilitating the separate recovery of the insulation layer and the wire, and can significantly reduce the damage rate of the mold on the separator and extend its service life.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement and simple improvement made to the essential content of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for stripping an insulating layer, characterized in that: include: Pre-treatment mechanism, separation mechanism and material receiving mechanism; The pretreatment mechanism comprises a calender (3) and a heating component (4), wherein the calender (3) is used to calender the insulated wire (100), and the heating component (4) is arranged at the rear side of the calender (3) and is used to heat the insulated wire (100); The separation mechanism is arranged at the rear side of the heating component (4), and comprises a stripper (5) and a separator (6); the stripper (5) is used to cut the insulation layers (120) on the upper and lower surfaces of the insulated wire (100) after calendering and heat treatment; the separator (6) is arranged at the rear side of the stripper (5), and a mold (61) is arranged at the entrance of the separator (6); the mold (61) is provided with a mold entrance (613) adapted to the size of the conductor (110) in the insulated wire (100) after calendering, and is used to separate the cut insulated wire (100) into the conductor (110) and two insulation layers (120); The material collection mechanism comprises a wire collection machine (7) for collecting the separated wire (110) and an insulation layer collection machine (8) for collecting the separated insulation layer (120).

2. The device for stripping the insulation layer according to claim 1, characterized in that: A wire-releasing machine (1) and a first tensioning machine (2) are also provided on the front side of the calender (3); the first tensioning machine (2) is located between the wire-releasing machine (1) and the calender (3).

3. The device for stripping the insulation layer according to claim 1, characterized in that: A second tensioning machine (9) is also provided between the wire take-up machine (7) and the separator (6).

4. The device for stripping the insulation layer according to claim 1, characterized in that: The insulation layer collecting machine (8) is located between the front side of the separator (6) and the rear side of the stripping machine (5).

5. The device for stripping an insulating layer according to claim 1, characterized in that: The stripping machine (5) comprises a base (51), on which two brackets (52) are arranged in a relative arrangement, an upper cutting assembly (53) and a lower cutting assembly (54) are installed between the two brackets (52), the upper cutting assembly (53) comprises an upper handle (531) and an upper blade (532) connected to the upper handle (531), and the lower cutting assembly (54) comprises a lower handle (541) and a lower blade (542) connected to the lower handle (541).

6. The device for stripping the insulation layer according to claim 5, characterized in that: The upper cutting assembly (53) further comprises an upper handle clamping block (533) detachably connected to the upper handle (531); an upper step portion (534) is formed at the lower end of the upper handle (531); the upper handle clamping block (533) and the upper blade (532) are both arranged at the upper step portion (534); and the upper blade (532) is located between the upper handle clamping block (533) and the side wall of the upper step portion (534); The lower cutting assembly (54) further comprises a lower handle clamping block (543) detachably connected to the lower handle (541); a lower step portion (544) is formed at the upper end of the lower handle (541); the lower handle clamping block (543) and the lower blade (542) are both arranged at the lower step portion (544), and the lower blade (542) is located between the lower handle clamping block (543) and the side wall of the lower step portion (544).

7. The device for stripping the insulation layer according to claim 5, characterized in that: The upper ends of the two brackets (52) are commonly connected to a top plate (55), a clamping adjustment rod (56) is threadedly provided on the top plate (55), and the bottom of the clamping adjustment rod (56) is connected to the upper knife handle (531); A sliding groove (57) is longitudinally provided on the two brackets (52), and a sliding rod (58) is transversely provided on the lower knife handle (541), and two ends of the sliding rod (58) are slidably matched with the sliding groove (57).

8. The device for stripping the insulation layer according to claim 7, characterized in that: A pressing block (5a) is provided on the top of the upper knife handle (531), and the bottom of the pressing adjustment rod (56) is threadedly connected to the pressing block (5a).

9. The device for stripping an insulating layer according to claim 5, characterized in that: A handle adjustment rod (59) is connected between the upper handle (531) and the lower handle (541).

10. The device for stripping the insulation layer according to claim 9, characterized in that: The upper knife handle (531) and the lower knife handle (541) are both provided with knife handle adjustment rods (59) on both the front and rear sides, and there are at least two knife handle adjustment rods (59) on each side.

Images