Cable stripping knives and cable strippers

Abstract

The utility model relates to the field of cables, and provides a cable stripping knife and a cable stripper. The cable stripping knife includes a knife body, and a support protrusion is provided on one side of the knife body, and the support protrusion extends to the tip of the knife body; a placement groove is provided in the support protrusion, and the notch of the placement groove faces one side of the knife tip. A color detection sensor is provided in the placement groove, and the color detection sensor is used to detect the color of the cable to be stripped at the knife tip. The present application sets a support protrusion at the tip of the cable stripping knife. During the cable stripping process, the support protrusion can prop up the cutting section and have a certain tearing effect on the cutting part of the cable, so that the actual cutting depth is slightly greater than the preset cutting depth of the knife tip. In addition, in combination with the color detection sensor, the color change at the cutting part is detected according to the different colors of the semi-conductive layer and the insulating layer in the cable, so as to achieve non-destructive and accurate stripping of the semi-conductive layer.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable stripping knife and a cable stripper. Background Art

[0002] In order to meet the line length requirements of high-voltage cables and the connection requirements with the power grid, it is necessary to install a cable harness assembly at the end of the high-voltage cable to achieve the connection of the high-voltage cable. During the installation process, the semi-conductive layer on the surface of the cable needs to be peeled off manually. However, since the manual operation is completely based on the feel of the operator, it may cause damage to the insulation layer or difficulty in peeling the semi-conductive layer. In addition, the cross-section of the semi-conductive layer formed is uneven, which can easily cause voltage breakdown in the cable harness assembly, thereby causing safety problems. Utility Model Content

[0003] Based on this, the present application provides a cable stripping knife and a cable stripper for facilitating stripping of a semi-conductive layer of a cable.

[0004] In a first aspect, the present application provides a cable stripping knife, the cable stripping knife comprising a knife body, a support protrusion is provided on one side of the knife body, and the support protrusion extends to a knife tip portion of the knife body;

[0005] A placement groove is provided in the supporting protrusion, the notch of the placement groove faces one side of the knife tip portion, and a color detection sensor is arranged in the placement groove, and the color detection sensor is used to detect the color of the cable to be stripped by the knife tip portion.

[0006] In some embodiments, the tool comprises a transition structure and a support structure, wherein the transition structure is arranged close to the blade tip of the tool body, and the support structure is arranged on a side of the transition structure away from the blade tip.

[0007] In some embodiments, the thickness of the transition structure increases gradually from the blade tip to the blade back.

[0008] In some embodiments, the thickness of the transition structure increases gradually from the blade tip to the blade back.

[0009] In some embodiments, the support structure and the transition structure are connected with each other in a rounded transition manner.

[0010] In some embodiments, the thickness of the support structure is 2 mm to 5 mm.

[0011] In a second aspect, the present application provides a cable stripper, wherein the cable stripper comprises the cable stripping knife as described in the first aspect.

[0012] In some embodiments, the cable stripper further includes a support frame, a cable positioning assembly, and a stripping knife assembly.

[0013] The cable positioning assembly is arranged on the support frame and is used for positioning the cable to be stripped.

[0014] The stripping knife assembly is arranged on the supporting frame, and the stripping knife assembly includes the cable stripping knife. The stripping knife assembly is used to strip the cable to be stripped.

[0015] In some embodiments, the stripping knife assembly further includes a depth adjustment member, and the depth adjustment member is used to adjust the stripping depth of the cable stripping knife.

[0016] In some embodiments, the stripping knife assembly further includes an angle adjustment member, and the angle adjustment member is used to adjust the stripping angle of the cable stripping knife.

[0017] In some embodiments, a locking switch is provided on the angle adjustment member, and the locking switch is used to lock or release the angle fixation of the cable stripping knife by the angle adjustment member.

[0018] The locking switch is electrically connected to the color detection sensor. When the color detection sensor detects a color change, the locking switch cancels the angle fixation of the cable stripping knife by the angle adjustment member.

[0019] Compared with the traditional technology, the utility model has at least the following beneficial effects:

[0020] The present application sets a support protrusion on the cable stripping knife. During the cable stripping process, the support protrusion can prop up the cut section of the cable and have a certain tearing effect on the cut portion of the cable, so that the actual cutting depth is slightly greater than the preset cutting depth of the blade tip. In other words, when the blade tip of the knife body has not yet cut the insulating layer, the support protrusion can be used to prop up the cut section and partially tear the semi-conductive layer, so as to achieve a pre-cutting effect without knife contact. In addition, in conjunction with a color detection sensor, the color change at the cut portion is detected according to the different colors of the semi-conductive layer and the insulating layer in the cable, so as to achieve non-destructive and accurate stripping of the semi-conductive layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side structural schematic diagram of a cable stripping knife provided in one embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the planar structure of a cable stripping knife provided in one embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a state in which a cable stripping knife provided in one embodiment of the utility model strips a semi-conductive layer of a cable;

[0024] Figure 4 It is a schematic structural diagram of a cable stripper provided in one embodiment of the utility model.

[0025] Among them, 100-stripping knife assembly; 110-cable stripping knife; 111-knife body; 112-support protrusion; 112a-transition layer; 112b-support layer; 113-color detection sensor; 120-depth adjustment member; 130-angle adjustment member; 200-support frame; 300-cable positioning assembly; 310-fixed seat; 320-adjustment seat. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings, embodiments and examples. These embodiments and examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. The purpose of providing these embodiments and examples is to make the understanding of the disclosure of the present invention more thorough and comprehensive. It should also be understood that the present invention can be implemented in many different forms and is not limited to the embodiments and examples described herein. Those skilled in the art can make various changes or modifications without violating the connotation of the present invention, and the equivalent forms obtained also fall within the scope of protection of the present invention. In addition, in the description below, a large number of specific details are given in order to provide a more comprehensive understanding of the present invention. It should be understood that the present invention can be implemented without one or more of these details.

[0027] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, "optionally", "optional", and "optional" mean optional or dispensable, that is, any one of the two parallel schemes of "yes" or "no". If multiple "options" appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "option" is independent.

[0030] In the present utility model, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0031] In the present invention, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity, nor can they be understood as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first", "second", etc. only serve the purpose of non-exhaustive enumeration and description, and it should be understood that they do not constitute a closed limitation on quantity.

[0032] All documents mentioned in the present utility model are cited as references in the present utility model, just as each document is cited as a reference separately. Unless they conflict with the utility model purpose and / or technical solution of the present utility model, the cited documents involved in the present utility model are cited with all contents and all purposes. When the present utility model involves cited documents, the definitions of relevant technical features, terms, nouns, phrases, etc. in the cited documents are also cited. When the present utility model involves cited documents, the examples and preferred methods of the cited relevant technical features can also be incorporated into the present utility model as references, but are limited to the ability to implement the present utility model. It should be understood that when the cited content conflicts with the description in the present utility model, the present utility model shall prevail or be modified adaptively according to the description of the present utility model.

[0033] When stripping the semi-conductive layer of the cable, the operator relies on the feel of the operation to strip the semi-conductive layer, which may easily cause the problem of insufficient stripping depth and inability to strip, or excessive stripping depth causing damage to the insulating layer, which may easily cause voltage breakdown and other problems during use. In addition, the conventional technology also adds a regulator to the stripping knife to strictly control the stripping depth of the stripping knife. However, since the depth of the semi-conductive layer may be different during the co-extrusion process, the stripping depth may still be difficult to control. The present application provides a support protrusion on the knife body and cooperates with a color detection sensor. The support protrusion can not only provide a placement space for the color detection sensor, but also can realize tearing and stripping at the cutting point, thereby achieving the effect of knife-free cutting and stripping, thereby effectively avoiding damage to the insulating layer during the stripping of the semi-conductive layer in cooperation with the color detection sensor.

[0034] Based on this, the first aspect of the present application provides a cable stripping knife, such as Figure 1 and Figure 2As shown, the cable stripping knife includes a knife body 111. A support protrusion 112 is provided on one side of the knife body 111, and the support protrusion 112 extends to the knife tip of the knife body 111.

[0035] A placement groove is provided in the support protrusion 112. The notch of the placement groove faces one side of the knife tip, and a color detection sensor 113 is provided in the placement groove. The color detection sensor 113 is used to detect the color of the cable to be stripped at the knife tip.

[0036] The present application provides a support protrusion 112 on the cable stripping knife. During the cable stripping process, Figure 3 As shown, the support protrusion 112 can prop up the cutting section and have a certain tearing effect on the cutting part of the cable, so that the actual cutting depth is slightly greater than the preset cutting depth of the blade tip. In other words, when the blade tip of the blade body 111 has not yet cut the insulating layer, the support protrusion 112 can be used to prop up the cutting section and partially tear the semi-conductive layer, so as to achieve a pre-cutting effect without blade contact. Then, in conjunction with the color detection sensor 113, the color change at the cutting part is detected according to the different colors of the semi-conductive layer and the insulating layer in the cable, so as to achieve non-destructive and accurate peeling of the semi-conductive layer.

[0037] It is understandable that the color of the semiconductive layer of the cable may be black or the like, and the color of the insulating layer may be white or reddish brown or the like.

[0038] It should be noted that, since the semiconductive layer and the insulating layer in the cable are made of different materials, the mechanical strength at the connection interface between the semiconductive layer and the insulating layer is poor. When the semiconductive layer and the insulating layer are cut to the connection interface, the semiconductive layer can be directly removed by peeling. Therefore, when the knife tip of the present application is close to the connection between the semiconductive layer and the insulating layer, due to the presence of the support protrusion 112, the semiconductive layer can be torn and peeled off, thereby exposing the insulating layer.

[0039] In some embodiments, the support protrusion 112 includes a transition structure 112a and a support structure 112b, wherein the transition structure 112a is arranged near the blade tip of the blade body 111, and the support structure 112b is arranged on the side of the transition structure 112a away from the blade tip. In the present application, the transition structure 112a and the support structure 112b are arranged, and the transition structure 112a can ensure the cutting effect of the semi-conductive layer at the initial stage of cutting, and transition the cut section to the support structure 112b, and the support structure 112b can prop up the cut section to separate the end faces at the cut, which is not only convenient for the color detection sensor 113 to detect, but also can tear the cut section to achieve the peeling of the semi-conductive layer without contact with the blade tip.

[0040] In some embodiments, the thickness of the transition structure 112a increases from the tip of the blade to the back of the blade 111. The present application sets the transition structure 112a in this way to avoid the height difference at the blade surface in the initial cutting stage, which causes the cutting difficulty and the deformation of the semi-conductive layer at the cutting point, and has the advantage of convenient cutting.

[0041] In some embodiments, the minimum thickness of the support structure 112b is greater than the maximum thickness of the transition structure 112a. In the present application, the thicknesses of the support structure 112b and the transition structure 112a are set in this way, so that the support structure 112b can open the cut section, thereby effectively achieving the opening and tearing effect.

[0042] In some embodiments, the support structure 112b and the transition structure 112a are connected in a rounded transition. In the present application, the support structure 112b and the transition structure 112a are connected in a rounded transition, which can improve the convenience of cutting.

[0043] In some embodiments, the thickness of the support structure 112b is 2 mm to 5 mm. Figure 1 h represents the thickness of the support structure 112b, which may be 2.0mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3.0mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4.0mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm or 5.0mm. The height of the support structure 112b is set in this way in the present application to effectively ensure the opening and tearing of the cutting surface.

[0044] A second aspect of the present application provides a cable stripper, which comprises the cable stripping knife as described in the first aspect.

[0045] In some embodiments, Figure 4 As shown, the cable stripper further includes a support frame 200 , a cable positioning assembly 300 and a stripping knife assembly 100 .

[0046] The cable positioning assembly 300 is disposed on the support frame 200 and is used to position the cable to be stripped.

[0047] The stripping knife assembly 100 is disposed on the support frame 200 . The stripping knife assembly 100 includes a cable stripping knife 110 . The stripping knife assembly 100 is used to strip the cable to be stripped.

[0048] In some embodiments, the stripping knife assembly 100 further includes a depth adjustment member 120. The depth adjustment member 120 is used to adjust the stripping depth of the cable stripping knife 110. By providing the depth adjustment member 120, the present application can adjust the stripping depth of the cable stripping knife 110 according to the thickness of the semi-conductive layer of the cable, thereby improving the stripping efficiency and avoiding the problem of different depths caused by manual stripping.

[0049] In some embodiments, the present application does not make specific requirements and special limitations on the structure and composition of the depth adjustment member 120, and it is sufficient to be able to adjust the stripping depth of the cable stripping knife 110. For example, the depth adjustment member 120 includes a depth adjustment rod and a threaded sleeve, the cable glass is arranged at the end of the depth adjustment rod, the threaded sleeve is arranged on the support frame 200, and the depth adjustment rod is threadedly connected with the threaded sleeve, and the depth adjustment rod is driven to move up and down by rotating the threaded sleeve, thereby adjusting the stripping depth of the cable stripping knife 110. In addition, other methods can also be used to implement the depth adjustment member 120, such as a telescopic cylinder.

[0050] Optionally, the depth adjustment member 120 further includes a scale, which is used to mark the stripping depth of the cable stripping knife 110 .

[0051] In some embodiments, the stripping knife assembly 100 further includes an angle adjustment member 130. The angle adjustment member 130 is used to adjust the stripping angle of the cable stripping knife 110. The present application adjusts the angle of the cable stripping knife 110 through the angle adjustment member 130, so that the cross section of the semi-conductive layer after cutting presents a smooth chamfered structure, reduces the height difference between the semi-conductive layer and the insulating layer, makes a smooth transition, and avoids the problem of tip discharge.

[0052] It is understandable that the structure of the angle adjustment member 130 in the present application does not have any specific requirements or special limitations, and it only needs to be able to adjust the angle of the cable stripping knife 110. For example, the angle adjustment member 130 includes a rotating shaft and an adjusting rod, the rotating shaft is arranged at the connection of the cable stripping knife 110, the cable stripping knife 110 can rotate around the rotating shaft, the adjusting rod is movably connected to the cable stripping knife 110, the adjusting rod drives the cable stripping knife 110 to rotate around the rotating shaft by telescoping, and the angle of the cable stripping knife 110 is adjusted after being fixed. The adjusting rod can be a telescopic cylinder.

[0053] Optionally, the adjustment angle range of the angle adjustment member 130 is -10° to 10°.

[0054] In some embodiments, a locking switch is provided on the angle adjustment member 130. The locking switch is used to lock or release the angle adjustment member 130 to fix the cable stripping knife 110.

[0055] The locking switch is electrically connected to the color detection sensor 113. When the color detection sensor 113 detects a color change, the locking switch cancels the angle fixation of the cable stripping knife 110 by the angle adjustment member 130. The present application is connected to the color detection sensor 113 through the locking switch. When the color detection sensor 113 detects a color change, i.e., an exposed insulation layer, the locking switch curve is controlled to fix the angle of the cable stripping knife 110, thereby reminding the operator to complete the stripping and avoiding further cutting to damage the insulation layer.

[0056] In some embodiments, a locking switch is disposed on the adjusting rod to control whether the adjusting rod fixes or cancels the angle of the cable stripping knife 110 .

[0057] In some embodiments, the present application does not make specific requirements and special limitations on the structure and composition of the cable positioning assembly 300, and it is sufficient to be able to position the cable. For example, the cable positioning assembly 300 includes a fixed seat 310 and an adjustment seat 320, and the fixed seat 310 and the adjustment seat 320 clamp and position the cable to ensure cable alignment, wherein the adjustment seat 320 can move relative to the fixed seat 310 to achieve clamping of the cable.

[0058] Furthermore, a plurality of guide wheels are provided on the fixing seat 310 and the adjusting seat 320. The guide wheels are used to realize the relative rotation between the cable and the cable stripper, and the rotation direction is around the circumference of the cable, so as to realize the circumferential cutting of the cable stripping knife 110. Optionally, the guide wheels are made of rubber material, which can avoid imprinting on the cable surface.

[0059] Exemplarily, a method for performing cable stripping using the above-mentioned cable stripper is provided, comprising the following steps:

[0060] (1) Determine the cable cutting position, place the cable between the fixing seat 310 and the adjusting seat 320, and adjust the adjusting seat 320 so that the cable is clamped between the fixing seat 310 and the adjusting seat 320.

[0061] (2) The angle and stripping depth of the cable stripping knife 110 are adjusted according to the thickness of the semi-conductive layer of the cable and the chamfering requirements. The circular cutting is performed by step-by-step stripping, and the stripping depth is gradually increased. During the cutting process, the cutting is performed after the tip of the knife contacts the semi-conductive layer, and the supporting protrusion 112 can open the cut section to achieve a partial tearing effect. When the color detection sensor 113 detects that the color of the cut has changed, that is, the insulating layer is exposed, the color detection sensor 113 sends a signal to the locking switch of the angle adjustment member 130, and the locking switch cancels the locking fixation of the cable stripping knife 110 and stops stripping.

[0062] In summary, the present application sets a support protrusion 112 at the tip of the cable stripping knife 110. During the cable stripping process, the support protrusion 112 can prop up the cut section and have a certain tearing effect on the cut portion of the cable, so that the actual cutting depth is slightly greater than the preset cutting depth of the tip. In other words, when the tip of the knife body 111 has not yet cut the insulating layer, the support protrusion 112 can be used to prop up the cut section and partially tear the semi-conductive layer, thereby achieving a pre-cutting effect without knife contact. In addition, in conjunction with the color detection sensor 113, the color change at the cut portion is detected according to the different colors of the semi-conductive layer and the insulating layer in the cable, so as to achieve non-destructive and precise stripping of the semi-conductive layer.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cable stripping knife, characterized in that: The cable stripping knife comprises a knife body, one side of the knife body is provided with a supporting protrusion, and the supporting protrusion extends to the knife tip of the knife body; A placement groove is provided in the supporting protrusion, the notch of the placement groove faces one side of the knife tip portion, and a color detection sensor is arranged in the placement groove, and the color detection sensor is used to detect the color of the cable to be stripped by the knife tip portion.

2. The cable stripping knife according to claim 1, characterized in that: The supporting protrusion comprises a transition structure and a supporting structure. The transition structure is arranged close to the blade tip of the blade body, and the supporting structure is arranged on a side of the transition structure away from the blade tip.

3. The cable stripping knife according to claim 2, characterized in that: The thickness of the transition structure increases gradually from the blade tip to the blade back.

4. The cable stripping knife according to claim 2, characterized in that: The minimum thickness of the support structure is greater than the maximum thickness of the transition structure; and / or, The support structure and the transition structure are connected in a rounded transition manner.

5. The cable stripping knife according to any one of claims 2 to 4, characterized in that: The thickness of the support structure is 2 mm to 5 mm.

6. A cable stripper, characterized in that: The cable stripper comprises the cable stripping knife according to any one of claims 1-5.

7. The cable stripper according to claim 6, characterized in that The cable stripper also includes a support frame, a cable positioning assembly and a stripping knife assembly; The cable positioning assembly is arranged on the support frame and is used to position the cable to be stripped; The stripping knife assembly is arranged on the supporting frame, and the stripping knife assembly includes the cable stripping knife. The stripping knife assembly is used for stripping the cable to be stripped.

8. The cable stripper according to claim 7, characterized in that The stripping knife assembly further includes a depth adjusting member, and the depth adjusting member is used to adjust the stripping depth of the cable stripping knife.

9. The cable stripper according to claim 7 or 8, characterized in that The stripping knife assembly also includes an angle adjustment member, and the angle adjustment member is used to adjust the stripping angle of the cable stripping knife.

10. The cable stripper according to claim 9, characterized in that The angle adjustment member is provided with a locking switch, and the locking switch is used to lock or release the angle fixation of the cable stripping knife by the angle adjustment member; The locking switch is electrically connected to the color detection sensor. When the color detection sensor detects a color change, the locking switch cancels the angle fixation of the cable stripping knife by the angle adjustment member.

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