A cable insulation stripping apparatus and method of use

Abstract

The present application belongs to the technical field of stripping cable insulation, and in particular to a cable insulation stripping device and method, which comprises a conductor and other outer wrapping layers wrapped outside the conductor. The outer wrapping layers are separated by relative movement of the hook knife. The exposed part of the conductor is connected with a conductive wheel. The part of the hook knife in contact with the conductor is made of conductive material. The outer wrapping layers are separated by the hook knife and continuously approach the conductor. When the conductive part of the hook knife is in contact with the conductor, the movement of the hook knife towards the conductor is stopped. The hook knife that has stopped moving starts to swing back and forth, continuously separating from and contacting the conductor. The swinging back and forth of the hook knife drives the cutter to swing back and forth. The outer wrapping layers that have not been completely separated by the hook knife are cut by the swinging back and forth of the cutter. Whether the conductive part is in the shape of a straight line, a circle, or a spiral, whether it is smooth or not, or whether it is a steel tape armor, the insulation layer on the outside can be stripped without the need to select a special stripping opening.

Description

Technical Field

[0001] This invention belongs to the field of cable insulation stripping technology, specifically relating to a cable insulation stripping device and its usage method. Background Technology

[0002] Cables consist of a conductor and an outer sheath. Depending on the cable model, the outer sheath may include a conductor, a fire-resistant layer, an insulation layer, a shielding layer, filler, an inner sheath, steel tape armor, and an outer sheath, etc. Traditionally, cable insulation is stripped manually or mechanically. Manual stripping is inefficient, and mechanical stripping machines can only strip the insulation of simple cables, such as cables mainly composed of conductors and insulation. It is difficult to strip the insulation of multi-core cables or cables with steel tape armor. Mechanical stripping requires selecting a special stripping machine or stripping nozzle according to the cable model. If the wrong stripping machine or stripping nozzle is selected, it will cause significant damage to the conductor of the cable or fail to completely strip the insulation. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides a cable insulation stripping device and method, which can strip the outer insulation layer of any conductive part regardless of its shape, diameter, smoothness, or spiral steel strip armor, without requiring a dedicated stripping nozzle.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable insulation stripping device, comprising a conductor and other outer wrapping layers wrapped around the outside of the conductor, wherein the outer wrapping layers are separated by relative movement with a hook blade, the exposed portion of the conductor is connected to a conductive wheel, and the portion of the hook blade in contact with the conductor is made of a conductive material;

[0005] The hook blade cuts through the outer sheath and moves closer to the conductor until the conductive part of the hook blade contacts the conductor. Then, the hook blade stops moving towards the conductor and begins to swing back and forth, constantly separating from and contacting the conductor. The back-and-forth swing of the hook blade drives the cutting blade to swing back and forth. Through the back-and-forth swing of the cutting blade and its continuous separation and contact with the conductor, the outer sheath that was not completely cut by the hook blade is cut.

[0006] In a preferred embodiment of the cable insulation stripping device of the present invention, one end of the cutter is fixedly connected to a rotating wheel, one end of the rotating wheel is rotatably connected to the inner side of the bottom end of the first bracket at the center position of one end of the rotating wheel, a widening ring is fixedly connected to the plane of the rotating wheel, a connecting plate is fixedly connected to the outer side of one end of the rotating wheel, one end of the connecting plate has a strip-shaped hole, a rotating rod is slidably connected to the inner side of the strip-shaped hole, and one end of the rotating rod is fixedly connected to the inner side of one end of the hook cutter.

[0007] In a preferred embodiment of the cable insulation stripping device of the present invention, a first fixing plate is fixedly connected to the outer side of one end of the hook knife, an iron sheet is fixedly connected to the outer side of one end of the first fixing plate, a limit post is contacted and connected to the other end of the first fixing plate, an electromagnet is provided on the upper side of the iron sheet, and the electromagnet is fixed by a second bracket.

[0008] In a preferred embodiment of the cable insulation stripping device of the present invention, a second fixing plate is fixedly connected to the outer side of one end of the hook blade, and a first compression spring is fixedly connected to one end of the second fixing plate. The hook blade is rotatably connected via a rotating bracket.

[0009] In a preferred embodiment of the cable insulation stripping device of the present invention, a sliding block is fixedly connected to the top of the first bracket, a housing is slidably connected to the outside of the sliding block, and a second compression spring is fixedly connected between the inner side of one end of the housing and the outer side of one end of the sliding block.

[0010] In a preferred embodiment of the cable insulation stripping device of the present invention, the ends of the second bracket, the rotating bracket, the outer shell and the first compression spring are all fixedly connected to the inner side of one end of the sliding housing. A fixed bracket is slidably connected to the outer side of the sliding housing. A limit groove is formed on the inner side of one end of the fixed bracket. A sliding limit strip is fixedly connected to the outer side of one end of the sliding housing. The sliding limit strip is slidably connected to the inner side of one end of the limit groove.

[0011] In a preferred embodiment of the cable insulation stripping device of the present invention, a mounting bracket is fixedly connected to the inner side of one end of the fixed bracket, an electric telescopic rod is fixedly connected to the inner side of one end of the mounting bracket, and the end of the telescopic main shaft of the electric telescopic rod is fixedly connected to the outer side of one end of the sliding housing.

[0012] In a preferred embodiment of the cable insulation stripping device of the present invention, a threaded plate is fixedly connected to the inner side of one end of the fixed bracket, a threaded rod is threadedly connected to the inner side of one end of the threaded plate, a connecting bracket and a movable bracket are rotatably connected to the end of the threaded rod, a conductive wheel is rotatably connected to the inner side of one end of the movable bracket, and an electric wheel is installed on the inner side of one end of the connecting bracket, with the outer side of the electric wheel rotatably contacting the outer side of the outer wrapping layer.

[0013] A method of using a cable insulation stripping device includes the following steps:

[0014] S1: Manually peel off a section of the outer sheath of the cable;

[0015] S2: Makes the conductive wheel contact the conductor;

[0016] S3: By moving the electric wheel, the cable engages with the electric wheel;

[0017] S4: The cable is moved by the drive of an electric wheel;

[0018] S5: Complete the peeling of the outer coating layer.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the present invention can strip the insulation layer of various cables, and divide the cable into conductive and non-conductive parts. Regardless of the shape, diameter, smoothness or spiral steel strip armor of the conductive part, the outer insulation layer can be peeled off without the need to select a special stripping opening. For cables with complex structures, the insulation layer can also be peeled off well. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the sliding housing in this invention;

[0023] Figure 3 In this invention Figure 2 An enlarged structural diagram at point A;

[0024] Figure 4 This is a schematic diagram of the hook knife installation structure in this invention;

[0025] Figure 5 This is a left view of the connection structure of the fixed bracket in this invention;

[0026] In the picture:

[0027] 1. Conductor; 2. Outer sheath; 3. Hook; 4. Cutter; 5. Conductive wheel;

[0028] 6. First bracket; 61. Rotating wheel; 62. Widened ring; 63. Connecting plate; 64. Strip hole; 65. Rotating rod;

[0029] 7. Second bracket; 71. Electromagnet; 72. Iron sheet; 73. First fixing plate; 74. Limiting post;

[0030] 8. Second fixing plate; 81. First compression spring; 82. Rotating bracket;

[0031] 9. Sliding block; 91. Outer shell; 92. Second compression spring;

[0032] 10. Sliding housing; 11. Fixed bracket; 12. Sliding limit strip; 13. Limit groove; 14. Mounting bracket; 15. Electric telescopic rod; 16. Threaded plate; 17. Threaded rod; 18. Connecting bracket; 19. Electric wheel; 20. Moving bracket; Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figure 1-5 As shown:

[0035] A cable insulation stripping device includes a conductor 1 and other outer wrapping layers 2 wrapped around the outside of the conductor 1. The outer wrapping layers 2 are separated by relative movement with a hook 3. The exposed part of the conductor 1 is connected to a conductive wheel 5. The part of the hook 3 that contacts the conductor 1 is made of conductive material.

[0036] The hook blade 3 divides the outer wrapping layer 2 and continuously moves closer to the conductor 1 until the conductive part of the hook blade 3 contacts the conductor 1. Then, the hook blade 3 stops moving towards the conductor 1 and begins to swing back and forth, constantly separating from and contacting the conductor 1. The back-and-forth swing of the hook blade 3 drives the cutting blade 4 to swing back and forth. Through the back-and-forth swing of the cutting blade 4 and its continuous separation and contact with the conductor 1, the outer wrapping layer 2 that was not completely divided by the hook blade 3 is cut.

[0037] Furthermore;

[0038] In an optional embodiment, a rotating wheel 61 is fixedly connected to one end of the cutter 4. The center of one end of the rotating wheel 61 is rotatably connected to the inner side of the bottom end of the first bracket 6. A widening ring 62 is fixedly connected to the plane of the rotating wheel 61. A connecting plate 63 is fixedly connected to the outer side of one end of the rotating wheel 61. A strip hole 64 is opened at one end of the connecting plate 63. A rotating rod 65 is slidably connected to the inner side of the strip hole 64. One end of the rotating rod 65 is fixedly connected to the inner side of one end of the hook knife 3.

[0039] In an optional embodiment, a first fixing plate 73 is fixedly connected to the outer side of one end of the hook knife 3, an iron plate 72 is fixedly connected to the outer side of one end of the first fixing plate 73, a limit post 74 is contacted and connected to the other end of the first fixing plate 73, an electromagnet 71 is provided on the upper side of the iron plate 72, and the electromagnet 71 is fixed by the second bracket 7.

[0040] In an optional embodiment, a second fixing plate 8 is fixedly connected to the outer side of one end of the hook blade 3, and a first compression spring 81 is fixedly connected to one end of the second fixing plate 8. The hook blade 3 is rotatably connected via a rotating bracket 82.

[0041] In an optional embodiment, a sliding block 9 is fixedly connected to the top of the first bracket 6, and a housing 91 is slidably connected to the outer side of the sliding block 9. A second compression spring 92 is fixedly connected between the inner side of one end of the housing 91 and the outer side of one end of the sliding block 9.

[0042] In an optional embodiment, the ends of the second bracket 7, the rotating bracket 82, the outer shell 91, and the first compression spring 81 are all fixedly connected to the inner side of one end of the sliding shell 10. A fixed bracket 11 is slidably connected to the outer side of the sliding shell 10. A limiting groove 13 is formed on the inner side of one end of the fixed bracket 11. A sliding limiting strip 12 is fixedly connected to the outer side of one end of the sliding shell 10. The sliding limiting strip 12 is slidably connected to the inner side of one end of the limiting groove 13.

[0043] In an optional embodiment, a mounting bracket 14 is fixedly connected to the inner side of one end of the fixed bracket 11, and an electric telescopic rod 15 is fixedly connected to the inner side of one end of the mounting bracket 14. The end of the telescopic main shaft of the electric telescopic rod 15 is fixedly connected to the outer side of one end of the sliding housing 10.

[0044] In an optional embodiment, a threaded plate 16 is fixedly connected to the inner side of one end of the fixed bracket 11, a threaded rod 17 is threadedly connected to the inner side of one end of the threaded plate 16, a connecting bracket 18 and a movable bracket 20 are rotatably connected to the end of the threaded rod 17, a conductive wheel 5 is rotatably connected to the inner side of one end of the movable bracket 20, and an electric wheel 19 is installed on the inner side of one end of the connecting bracket 18, with the outer side of the electric wheel 19 in rotatable contact with the outer side of the outer wrapping layer 2.

[0045] In this embodiment: the cable consists of a conductor 1 and an outer sheath 2. Depending on the cable model, the outer sheath 2 may include the conductor 1, fire-resistant layer, insulation layer, shielding layer, filler, inner sheath, steel tape armor, and outer sheath, etc. Traditional cable insulation layer stripping is done by manual stripping and mechanical stripping. Manual stripping is inefficient, and mechanical stripping machines can only strip the insulation layer of cables with simple structures, such as cables mainly composed of conductor 1 and insulation layer. It is difficult to strip the insulation layer of cables with multiple cores or steel tape armor. When mechanically stripping, it is necessary to select a special stripping machine or stripping nozzle according to the cable model. If the wrong stripping machine or stripping nozzle is selected, it will cause great damage to the conductor 1 part of the cable or fail to completely strip the insulation layer.

[0046] This invention can strip the insulation layer of various cables, dividing the cable into conductive and non-conductive parts. Regardless of the shape, diameter, smoothness, or spiral steel strip armor of the conductive part, the outer insulation layer can be peeled off without the need for a special stripping opening. It can also effectively strip the insulation layer of cables with complex structures.

[0047] In this invention, the outer sheath 2 refers to a non-conductive sheath. The conductor 1 refers not only to the inner copper conductor 1 that mainly conducts electricity, but also to the steel tape armor. The peeling of the outer sheath 2 in this invention involves peeling off the outer sheath 2 outside the conductor 1. When starting to peel the cable, the outermost conductor 1 is peeled off first. For example, the outer insulating sheath outside the steel tape armor needs to be peeled off first. Then, the other outer sheaths 2 outside the inner copper conductor 1 are peeled off a second time by repeating the same steps. If a certain type of cable has a multi-layered, very strong conductive structure (such as steel tape armor), then the outer sheath 2 needs to be peeled off multiple times because the steel tape armor has sufficient strength to support the hook 3, the cutter 4, and the conductive wheel 5. If the conductive structure of the cable is very fragile, such as a shielding layer of semi-conductive material, it can be treated as an insulating outer sheath 2 and peeled off directly.

[0048] Before using this device to peel off the outer sheath 2 of the cable, a section of the outer sheath 2 to be peeled needs to be manually cut so that the conductive wheel 5 can contact the conductor 1. The sharp part of the bent portion of the hook 3 is made of conductive metal. The part of the hook 3 that can conduct electricity is the part that contacts the conductor 1. The conductive part of the hook 3 can be electrically connected by a wire running from the non-conductive part of the hook 3, so that the conductive part of the hook 3 can be connected to the power source through the wire. When the hook 3 is not in contact with the conductor 1, the electrical energy in the power source is transferred to the hook 3 through the wire, which is an open circuit. At this time, the hook 3 should be moved so that the hook 3 is in contact with the conductor 1. As the hook 3 moves, the cable should also move. The cable is moved by the rotation of the electric wheel 19. Rotating the threaded rod 17 causes it to move, which in turn moves the connecting bracket 18 or the moving bracket 20. The moving bracket 20 causes the conductive wheel 5 to contact the conductor 1, and the connecting bracket 18 causes the electric wheel 19 to contact the outer surface of the cable. The electric wheel 19 drives the cable. If the hook 3 does not contact the conductor 1 while the cable is moving, the electrical energy from the power supply cannot pass through the wire, hook 3, and conductor 1 to be output from the conductive wheel 5. 5. No electrical signal output. In this case, it is determined that hook 3 is not in contact with conductor 1. While hook 3 is not in contact with conductor 1, it needs to be continuously moved until it makes contact. The movement of hook 3 can be achieved by driving the electric telescopic rod 15. When the electric telescopic rod 15 is energized, it can move the sliding housing 10. The movement of the sliding housing 10 can then move the rotating bracket 82, thereby moving hook 3. Once hook 3 makes contact with conductor 1, the end of the conductive wheel 5 will output an electrical signal. At this point, the movement of hook 3 should be stopped immediately, that is, the electric telescopic rod should be stopped immediately. As the cable moves actively, the hook 3 can be simply understood as being able to completely separate the outer sheath 2 without damaging the conductor 1. However, from a microscopic perspective, the hook 3 will inevitably cause some damage to the conductor 1 when it comes into contact with the conductor 1 as the cable moves. Therefore, by repeatedly swinging the hook 3, the hook 3 can continuously separate and contact the conductor 1, thereby reducing the damage to the conductor 1. Moreover, by repeatedly swinging the hook 3, the hook 3 can continuously separate and contact the conductor 1, which can also help to deal with the fit of the hook 3 after the shape and diameter of the conductor 1 changes.

[0049] When hook 3 first contacts conductor 1, the movement of hook 3 needs to be stopped immediately. However, in subsequent operations, after hook 3 separates from conductor 1, a certain time interval needs to be waited. If hook 3 contacts conductor 1 again within the preset time interval, hook 3 does not need to be moved actively. This time interval can be controlled between 0.1 seconds and 1 second. If the time between hook 3 and conductor 1 is longer than the preset time interval, hook 3 needs to be moved actively.

[0050] Assuming the diameter of conductor 1 is not fixed, but gradually increases or decreases, taking the gradual decrease of conductor 1 as an example, when hook 3 works at the same position as conductor 1, hook 3 continuously swings back and forth, so that the electrical signal output from conductive wheel 5 is regular and intermittent. When the diameter of conductor 1 suddenly or indirectly decreases, hook 3, which is swinging back and forth at the original position, will no longer be able to contact conductor 1. At this time, there will be a relatively long period of no signal output from conductive wheel 5. That is to say, the time interval of no electrical signal output from conductive wheel 5 exceeds the preset time interval. At this time, hook 3 needs to be actively moved to move hook 3 closer to conductor 1 until hook 3 contacts conductor 1. It should be noted that if conductive wheel 5 does not output a signal for more than the preset time, the reciprocating swing of hook 3 will stop.

[0051] Taking the gradual increase in the diameter of conductor 1 as an example, when the hook 3 is working at the same position as the diameter of conductor 1, the hook 3 swings back and forth continuously, so that the electrical signal output from the conductive wheel 5 is regular and intermittent. When the diameter of conductor 1 suddenly increases or gradually increases, even on the basis of the reciprocating swing of the hook 3, the hook 3 will be in contact with conductor 1 for a long time. It is just a matter of how deeply the hook 3 is embedded in the conductor 1. In this case, the conductive wheel 5 will continuously output electrical signals. When the duration of the continuous output of electrical signals by the conductive wheel 5 exceeds the preset time, the hook 3 needs to be actively moved away from conductor 1 until the hook 3 is no longer in contact with conductor 1. It should be noted that when the conductive wheel 5 continues to output signals for more than the preset time, the reciprocating swing of the hook 3 will stop.

[0052] When the time interval is controlled at 0.1 seconds, the hook knife 3 can better adapt to the changes in the shape of the conductor 1. For example, when cutting the outer sheath 2 of the steel strip armor, the steel strip armor is a multi-strip spiral structure with a certain gap between the multiple steel strip armors. When the time interval is controlled relatively small, the hook knife 3 can better follow the gap between the steel strip armors on the straight movement trajectory, thereby obtaining a better peeling effect of the outer sheath 2. However, at this time, it is also necessary to reduce the moving speed of the cable, which will result in an increase in the time required, although the peeling effect of the outer sheath 2 is improved. Conversely, if the time interval is controlled at 1 second, the peeling effect of the outer sheath 2 will be reduced, and the damage to the conductor 1 will be relatively aggravated, but a faster peeling speed can be obtained.

[0053] The power for the reciprocating swing of the hook 3 can be provided by the electromagnet 71. When the electromagnet 71 is energized, it generates a magnetic force, which affects the iron plate 72, causing the iron plate 72 to move closer to the electromagnet 71. The movement of the iron plate 72 will drive the first fixed plate 73 to move, which will drive the hook 3 to rotate around the rotating bracket 82. While the hook 3 is rotating, it will drive the second fixed plate 8 to move. The movement of the second fixed plate 8 needs to overcome the elastic force of the first compression spring 81. When the electromagnet 71 is de-energized, the first compression spring 81 will push the second fixed plate 8, thereby driving the hook 3 to rotate in the opposite direction around the rotating bracket 82, so that the hook 3 returns to its original position. When the hook 3 rotates, it will drive the first fixed plate 73 to move. The rotation of the first fixed plate 73 is restricted by the limiting post 74. Therefore, the first fixed plate 73 can only move back and forth in the gap between the limiting post 74 and the electromagnet 71.

[0054] When the hook blade 3 swings, it drives the rotating rod 65 to move. The movement of the rotating rod 65 drives the connecting plate 63 to move, and the movement of the connecting plate 63 drives the rotating wheel 61 to rotate. Since the hook blade 3 swings back and forth, the rotating wheel 61 also rotates back and forth at a relatively small angle. The rotation of the rotating wheel 61 drives the cutting blade 4 to rotate. When the hook blade 3 separates from the conductor 1, the cutting blade 4 moves to contact the conductor 1, thereby continuing to cut and separate the outer wrapping layer 2 that was not completely separated by the hook blade 3. Since the swing amplitude of the hook blade 3 is not large, when the hook blade 3 separates from the conductor 1... The outer wrapping layer 2 is not completely cut, and the cutter 4 can completely separate the outer wrapping layer 2 that is not completely cut. The widening ring 62 can widen the width of the rotating wheel 61, thereby opening up the outer wrapping layer 2 that is not completely cut, making it easier for the cutter 4 to cut it. The cutter 4 cuts the outer wrapping layer 2 by cutting, while the hook knife 3 has a hook-shaped structure opposite to the direction of movement, so the hook knife 3 has a better splitting effect on the outer wrapping layer 2, but the hook knife 3 also causes greater damage to the conductor 1.

[0055] In order to enable the cutter 4 to make better contact with the conductor 1, for example, if there is an inwardly recessed part on the surface of the conductor 1, and this part is not separated by the hook 3 in time, the sliding block 9 will be moved by the elastic force of the second compression spring 92. The sliding block 9 will move the first support 6. The movement of the first support 6 will move the rotating wheel 61 a certain distance. After the rotating wheel 61 moves, it will drive the cutter 4 to contact the surface of the conductor 1, thereby cutting the outer wrapping layer 2 that was not cut by the hook 3 in time.

[0056] It should be understood that although the first support 6 can move, the range of movement of the first support 6 is not very large. The first support 6 can only move because of the influence of the strip hole 64. If the strip hole 64 is a circular hole that fully matches the rotating rod 65, then the first support 6 cannot move.

[0057] Except for the special cases mentioned above, under normal circumstances, when the hook blade 3 contacts the conductor 1, the cutter blade 4 does not contact the conductor 1. That is to say, under normal circumstances, the hook blade 3 and the cutter blade 4 alternately contact the conductor 1. By controlling the moving speed of the cable and the swing frequency of the hook blade 3 and the cutter blade 4, the part that is not cut by the hook blade 3 can be cut by the cutter blade 4.

[0058] A method of using a cable insulation stripping device includes the following steps:

[0059] S1: Manually peel off a section of the outer sheath 2 of the cable;

[0060] S2: Make the conductive wheel 5 contact the conductor 1;

[0061] S3: By moving the electric wheel 19, the cable is engaged with the electric wheel 19;

[0062] S4: The cable is moved by the drive of the electric wheel 19;

[0063] S5: Complete the peeling of the outer wrapping layer 2.

[0064] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable insulation stripping device, comprising a conductor (1) and other outer wrapping layers (2) wrapped around the outside of the conductor (1), characterized in that: The outer wrapping layer (2) is divided by the relative movement of the hook knife (3), the exposed part of the conductor (1) is connected to the conductive wheel (5), and the part of the hook knife (3) that contacts the conductor (1) is made of conductive material; The hook (3) cuts the outer wrapping layer (2) and moves closer to the conductor (1) until the conductive part of the hook (3) contacts the conductor (1). Then the hook (3) stops moving towards the conductor (1). The hook (3) that has stopped moving starts to swing back and forth, constantly separating and contacting the conductor (1). The back-and-forth swing of the hook (3) drives the cutter (4) to swing back and forth. Through the back-and-forth swing of the cutter (4) and the continuous separation and contact with the conductor (1), the outer wrapping layer (2) that has not been completely cut by the hook (3) is cut. One end of the cutter (4) is fixedly connected to a rotating wheel (61). The center of one end of the rotating wheel (61) is rotatably connected to the inner side of the bottom end of the first bracket (6). A widening ring (62) is fixedly connected to the plane of the rotating wheel (61). A connecting plate (63) is fixedly connected to the outer side of one end of the rotating wheel (61). A strip hole (64) is opened at one end of the connecting plate (63). A rotating rod (65) is slidably connected to the inner side of the strip hole (64). One end of the rotating rod (65) is fixedly connected to the inner side of one end of the hook knife (3). The hook knife (3) is fixedly connected to a first fixing plate (73) on one side, and an iron plate (72) is fixedly connected to one side of the first fixing plate (73). The other end of the first fixing plate (73) is in contact with a limit post (74). An electromagnet (71) is provided on the upper side of the iron plate (72). The electromagnet (71) is fixed by a second bracket (7). A second fixing plate (8) is fixedly connected to the outer side of one end of the hook knife (3), and a first compression spring (81) is fixedly connected to one end of the second fixing plate (8). The hook knife (3) is rotatably connected through a rotating bracket (82).

2. The cable insulation stripping device according to claim 1, characterized in that: A sliding block (9) is fixedly connected to the top of the first bracket (6), and an outer shell (91) is slidably connected to the outer side of the sliding block (9). A second compression spring (92) is fixedly connected between the inner side of one end of the outer shell (91) and the outer side of one end of the sliding block (9).

3. The cable insulation stripping device according to claim 2, characterized in that: The ends of the second bracket (7), the rotating bracket (82), the outer shell (91) and the first compression spring (81) are all fixedly connected to the inner side of one end of the sliding shell (10). A fixed bracket (11) is slidably connected to the outer side of the sliding shell (10). A limit groove (13) is opened on the inner side of one end of the fixed bracket (11). A sliding limit strip (12) is fixedly connected to the outer side of one end of the sliding shell (10). The sliding limit strip (12) is slidably connected to the inner side of one end of the limit groove (13).

4. The cable insulation stripping device according to claim 3, characterized in that: An installation bracket (14) is fixedly connected to the inner side of one end of the fixed bracket (11), and an electric telescopic rod (15) is fixedly connected to the inner side of one end of the installation bracket (14). The end of the telescopic main shaft of the electric telescopic rod (15) is fixedly connected to the outer side of one end of the sliding housing (10).

5. The cable insulation stripping device according to claim 4, characterized in that: A threaded plate (16) is fixedly connected to the inner side of one end of the fixed bracket (11). A threaded rod (17) is threadedly connected to the inner side of one end of the threaded plate (16). A connecting bracket (18) and a movable bracket (20) are rotatably connected to the end of the threaded rod (17). A conductive wheel (5) is rotatably connected to the inner side of one end of the movable bracket (20). An electric wheel (19) is installed on the inner side of one end of the connecting bracket (18). The outer side of the electric wheel (19) is in rotatable contact with the outer side of the outer wrapping layer (2).

6. A method of using the cable insulation stripping device according to any one of claims 1-5, comprising the following steps: S1: Manually peel off a section of the outer sheath (2) of the cable; S2: Make the conductive wheel (5) contact the conductor (1); S3: By moving the electric wheel (19), the cable is made to engage with the electric wheel (19); S4: The cable is moved by the drive of the electric wheel (19); S5: Complete the peeling of the outer wrapping layer (2).

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