Conductor processing device and low-shrinkage low-voltage cable

Abstract

The present application relates to the technical field of cable, and relates to a conductor processing device and a low-shrinkage low-voltage cable. The conductor processing device comprises a mounting seat and a scratch processing assembly, and the scratch processing assembly is arranged on the mounting seat. The scratch processing assembly comprises a rotary driving device and a rotating drum. The rotating drum is rotationally connected with the mounting seat. The output end of the rotary driving device is in transmission connection with the rotating drum. The rotating drum is formed with a conductor channel along the axial direction, and the rotating drum is provided with a plurality of scratch processing pieces along the circumferential direction for processing scratches on the outer wall of the conductor. The conductor processing device provided by the present application can process scratches with specific shapes on the outer wall of the conductor under the action of the plurality of scratch processing pieces when the rotating drum is rotated by the rotary driving device and the conductor is placed in the conductor channel and pulled at a set speed. The scratches can improve the friction between the outer wall of the conductor and the inner wall of the insulation layer, thereby effectively preventing the relative sliding between the conductor and the insulation layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable, in particular to a conductor processing device and low shrinkage low-voltage cable. BACKGROUND

[0002] At present, low-voltage power cable generally adopts cross-linked polyethylene (XLPE) as an insulating material, which has excellent performance, including good heat resistance, high mechanical strength and strong load capacity.

[0003] In the prior art, the extrusion tube type extrusion production method is usually adopted, which has high production speed and yield. However, due to the fact that the insulating layer and the outer wall of the conductor cannot be completely and closely attached, it is easy to cause the insulating layer and the conductor to be separated, causing the relative sliding between the insulating layer and the conductor, especially in small cross-section low-voltage cable. In addition, the smoothness of the profiled conductor outer wall is higher than that of the ordinary circular conductor, which makes the adhesion smaller in the production process, and it is more easy to cause the relative sliding between the insulating layer and the conductor. SUMMARY

[0004] The present application provides a conductor processing device and low shrinkage low-voltage cable to solve the defect that the cable produced by the extrusion tube type extrusion production method in the prior art is easy to separate the insulating layer and the conductor, causing the relative sliding between the insulating layer and the conductor.

[0005] In one aspect, the present application provides a conductor processing device, comprising: a mounting seat and a scratch processing assembly, the scratch processing assembly is arranged on the mounting seat.

[0006] The scratch processing assembly comprises a rotary drive device and a rotating drum, the rotating drum is rotatably connected with the mounting seat, the output end of the rotary drive device is drivingly connected with the rotating drum to drive the rotating drum to rotate, the rotating drum is formed with a conductor passage along the axial direction, the conductor passage is used for the conductor to pass through, the rotating drum is provided with a plurality of scratch processing pieces along the circumferential direction, the scratch processing pieces are used for processing scratches on the outer wall of the conductor, and the working end of the scratch processing piece is located in the conductor passage.

[0007] According to the conductor processing device provided by the present application, the rotating drum comprises a main body part and a processing part, the processing part is coaxially arranged with the main body part and is detachably connected with the main body part, the main body part is rotatably connected with the mounting seat, the output end of the rotary drive device is drivingly connected with the main body part, and the processing part is provided with a plurality of the scratch processing pieces along the circumferential direction.

[0008] According to the conductor processing device provided by the present application, the rotating drum comprises a plurality of the processing parts, and the plurality of the processing parts are arranged along the axial direction in the main body part.

[0009] The conductor processing device provided by the present application comprises a plurality of the scratch processing assemblies, and the plurality of the scratch processing assemblies are arranged along the axial direction of the rotating drum.

[0010] The conductor processing device provided by the present application comprises a plurality of the scratch processing assemblies, and the plurality of the scratch processing assemblies are arranged along the axial direction of the rotating drum.

[0011] The conductor processing device provided by the present application comprises a plurality of the scratch processing assemblies, and the plurality of the scratch processing assemblies are arranged along the axial direction of the rotating drum.

[0012] The conductor processing device provided by the present application further comprises a guide assembly, the guide assembly comprises a first roller shaft group and a second roller shaft group, the first roller shaft group and the second roller shaft group are arranged along the axial direction of the rotating drum, the first roller shaft group comprises two first roller shafts arranged in parallel and spaced apart, the second roller shaft group comprises two second roller shafts arranged in parallel and spaced apart, the first roller shaft and the second roller shaft are rotationally connected with the mounting seat, and a guide channel for guiding the conductor is formed between the two first roller shafts and the two second roller shafts.

[0013] The conductor processing device provided by the present application comprises a plurality of the guide assemblies, and the plurality of the guide assemblies are arranged along the axial direction of the rotating drum.

[0014] The conductor processing device provided by the present application further comprises a blowing assembly, the blowing assembly is formed with a blowing channel, and the blowing channel is configured to be connected with a gas source.

[0015] The conductor processing device provided by the present application comprises a plurality of the guide assemblies, and the plurality of the guide assemblies are arranged along the axial direction of the rotating drum.

[0016] The conductor processing device provided by the present application further comprises a base, and the mounting seat is slidingly matched with the base in the horizontal direction perpendicular to the axis of the rotating drum.

[0017] The conductor processing device provided by the present application comprises a plurality of the guide assemblies, and the plurality of the guide assemblies are arranged along the axial direction of the rotating drum.

[0018] The low-shrinkage low-voltage cable provided by the present application comprises a conductor unit, the conductor unit comprises a conductor wire, the conductor wire comprises a conductor and an insulation layer, an outer wall of the conductor is provided with a scratch, the scratch is processed by the conductor processing device according to any one of the above, and the insulation layer is wrapped on the conductor, and an inner wall of the insulation layer is in contact with the outer wall of the conductor.

[0019] The low-shrinkage low-voltage cable provided by the application comprises a conductive unit and a protective unit, wherein the conductive unit comprises a plurality of wires and an inner lining layer, the plurality of wires are located in the inner lining layer, and a filling rope is arranged in the inner lining layer; the protective unit comprises a sheath layer and an outer protective layer, the sheath layer is wrapped on the inner lining layer, and the outer protective layer is wrapped on the sheath layer.

[0020] The conductor processing device provided by the application can process the scratches with specific shapes on the outer wall of the conductor under the action of the plurality of scratch processing members arranged on the rotating drum in the circumferential direction, so that the friction between the outer wall of the conductor and the inner wall of the insulating layer is improved, thereby effectively preventing the relative sliding between the conductor and the insulating layer.

[0021] Additional aspects and advantages of the application will be set forth in part in the following description, will become apparent from the following description, or will be learned through practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 Fig. 1 is one of the schematic diagrams of the conductor processing device provided by the embodiments of the application.

[0024] Figure 2 Fig. 2 is another schematic diagram of the conductor processing device provided by the embodiments of the application.

[0025] Figure 3 Fig. 3 is a third schematic diagram of the conductor processing device provided by the embodiments of the application.

[0026] Figure 4 Fig. 4 is a schematic diagram of the scratch processing assembly in the conductor processing device provided by the embodiments of the application.

[0027] Figure 5 Fig. 5 is a schematic diagram of the rotating drum in the conductor processing device provided by the embodiments of the application.

[0028] Figure 6 Fig. 6 is a schematic diagram of the guide assembly in the conductor processing device provided by the embodiments of the application.

[0029] Figure 7 Fig. 7 is a sectional schematic diagram of the low-shrinkage low-voltage cable provided by the embodiments of the application.

[0030] Reference signs:

[0031] 100, mounting seat; 110, first support; 120, second support; 130, third support; 140, sliding seat; 200, scratch processing assembly; 210, rotary driving device; 220, rotating drum; 221, conductor channel; 222, main body part; 223, processing part; 224, mounting groove; 225, fixing ring; 300, guide assembly; 310, first roller shaft group; 320, second roller shaft group; 330, guide channel; 400, blowing assembly; 410, blowing channel; 500, base; 510, sliding rail; 600, low-shrinkage low-voltage cable; 610, wire; 611, conductor; 612, insulation layer; 620, inner lining layer; 630, filling rope; 640, armored layer; 650, outer protective layer. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0033] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature can be "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature can be "under", "below" and "underneath" the second feature, which can be that the first feature is directly under or obliquely under the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0036] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0037] The following will be described in combination with Figures 1 to 7 The conductor processing device and the low-shrinkage low-voltage cable provided by the present application are described.

[0038] Referring to Figures 1 to 3 As shown in the drawings, the conductor processing device provided by the embodiment of the present application comprises a mounting seat 100 and a scratch processing assembly 200, and the scratch processing assembly 200 is arranged on the mounting seat 100.

[0039] The scratch processing assembly 200 comprises a rotary driving device 210 and a rotating drum 220, the rotating drum 220 is rotationally connected with the mounting seat 100, and the output end of the rotary driving device 210 is drivingly connected with the rotating drum 220 to drive the rotating drum 220 to rotate. The rotating drum 220 is formed with a conductor passage 221 along the axial direction, which can allow the conductor 611 to pass through. A plurality of scratch processing pieces (not shown in the drawings) for processing scratches on the outer wall of the conductor 611 are arranged on the rotating drum 220 in a circumferential direction, and the working end of the scratch processing piece is located in the conductor passage 221.

[0040] The conductor processing device provided by the application can drive the rotating drum to rotate by the rotating driving device 210, place the conductor 611 in the conductor channel 221 and pull the conductor 611 at a set speed, and under the action of the plurality of scratch processing pieces arranged at intervals in the circumferential direction of the rotating drum 220, scratches with a specific shape can be processed on the outer wall of the conductor 611, which can improve the friction between the outer wall of the conductor 611 and the inner wall of the insulating layer 612, thereby effectively preventing the relative sliding between the conductor 611 and the insulating layer 612.

[0041] Specifically, the mounting seat 100 is used to support and fix the structural components of the entire conductor processing device, and provides a stable mounting basis for the scratch processing assembly 200. It ensures that the scratch processing assembly 200, the rotating driving device 210 and the rotating drum 220 and other components remain stable, and provides the mounting position of the rotating drum 220 and the rotating driving device 210, so that the rotating drum 220 can rotate and transmit power to process the conductor 611.

[0042] The scratch processing assembly 200 is used to process scratches with a set shape on the outer wall of the conductor 611 to improve the friction between the conductor 611 and the insulating layer 612 through the scratches. The number of the scratch processing assembly 200 is at least one, i.e. it can be single or multiple. For example, when the number of the scratch processing assembly 200 is single, the plurality of scratch processing pieces arranged at intervals in the circumferential direction of the rotating drum 220 in the single scratch processing assembly 200 can process scratches on the outer wall of the conductor 611; when the number of the scratch processing assembly 200 is multiple, the rotating drums 220 in the multiple scratch processing assemblies 200 are coaxially arranged, and the rotating drums 220 of adjacent scratch processing assemblies 200 are provided with an axial spacing, so that through the cooperation of the multiple scratch processing assemblies 200, more types of scratches can be processed on the outer wall of the conductor 611, and the processing efficiency is improved. In the multiple scratch processing assemblies 200, the rotating drums 220 can be independently driven by the rotating driving device 210, so that the rotating drums 220 can rotate at different speeds according to actual needs to process scratches with a set specification on the outer wall of the conductor 611.

[0043] In addition, when the number of the scratch processing assembly 200 is multiple, the specifications of different scratch processing assemblies 200 can be the same or different. For example, the number, arrangement mode and parameter specification of the scratch processing pieces on the rotating drum 220 in different scratch processing assemblies 200 can be the same or different, which is not limited.

[0044] The rotary drum 220 is circumferentially spaced apart with a plurality of scratch machining members for machining scratches on the outer wall of the conductor 611. The plurality of scratch machining members can be circumferentially spaced apart in a uniform arrangement on the rotary drum 220, or can be circumferentially spaced apart in a non-uniform arrangement on the rotary drum 220, which is not limited. On the same rotary drum 220, the specifications of each scratch machining member can be the same or different, which is not limited.

[0045] Referring to Figures 1 to 3 In the embodiment of the present application, the number of scratch machining assemblies 200 is taken as an example, and four scratch machining members are circumferentially spaced apart on the outer wall of each end of the rotary drum 220, and the four scratch machining members are of the same specification.

[0046] The scratch machining members can adopt various forms, for example, a plurality of protruding structures are circumferentially spaced apart on the inner wall of the rotary drum 220, and the tips of the protruding structures are used to machine scratches on the outer wall of the conductor 611; for example, a plurality of cutters for machining scratches are circumferentially spaced apart on the inner wall of the rotary drum 220, and the working parts of the cutters are used to machine scratches on the outer wall of the conductor 611; for example, a plurality of metal brushes are circumferentially spaced apart on the inner wall of the rotary drum 220, and the metal brushes are used to machine scratches on the outer wall of the conductor 611. In specific implementation, the corresponding scratch machining member can be selected according to the type of scratches to be machined.

[0047] Referring to Figures 1 to 4 As shown in the figure, the scratch machining assembly 200 includes a rotary driving device 210 and a rotary drum 220, the rotary driving device 210 is arranged on the mounting seat 100, and the rotary drum 220 is rotatably arranged on the base 500. The output end of the rotary driving device 210 is in transmission connection with the rotary drum 220, so as to drive the rotary drum 220 to rotate in a set direction when the rotary driving device 210 is started.

[0048] As an example, in the embodiment, the mounting seat 100 is provided with a first support 110, and the middle part of the rotary drum 220 is in rotational connection with the first support 110, so that the rotary drum 220 can freely rotate relative to the mounting seat 100 with its axis as the rotation axis.

[0049] The rotary driving device 210 is preferably a driving motor, which can be in transmission connection with the rotary drum 220 by using common existing transmission structures such as gear transmission, chain transmission or belt transmission, which is not limited. In order to accurately control the rotation speed of the rotary drum 220, a speed reduction mechanism can be arranged between the driving motor and the rotary drum 220 to control the driving ratio within a reasonable range, or a speed reduction motor can be used as the driving motor.

[0050] The driving motor is preferably a servo motor, which is controlled to start, stop, change direction and change speed by an electric control cabinet arranged on the mounting seat 100.

[0051] Referring to Figures 1 to 4As shown, in the embodiment, the output end of the rotating driving device 210 is connected with the rotating drum 220 through a belt transmission mechanism. Correspondingly, the outer wall of the rotating drum 220 is provided with a belt groove along the circumference.

[0052] As shown in Figure 4 and Figure 5 As shown, according to some embodiments of the present application, the rotating drum 220 comprises a main body part 222 and a processing part 223. The processing part 223 is coaxially arranged with the main body part 222 and detachably connected with the main body part 222. The main body part 222 is rotationally connected with the mounting base 100 and rotationally connected with the output end of the rotating driving device 210. The processing part 223 is provided with a plurality of scratch processing pieces along the circumference.

[0053] By coaxially arranging the processing part 223 with the main body part 222 and detachably connecting the processing part 223 with the main body part 222, and by arranging the scratch processing pieces along the circumference of the processing part 223, the processing part 223 can be detached from the main body part 222, and the scratch processing pieces on the processing part 223 can be maintained or replaced, which is simple to operate. The user can implement the maintenance or replacement of the scratch processing pieces without detaching the entire rotating drum 220.

[0054] Specifically, the detachable connection mode of the processing part 223 with the main body part 222 comprises a plurality of modes. For example, clamping, pin connection, and threaded connection. When clamping, corresponding clamping structures can be arranged at the connecting ends of the processing part 223 and the main body part 222, and the clamping connection of the two can be realized through the clamping structures. When pin connection, pin holes can be arranged at the connecting ends of the processing part 223 and the main body part 222, and the pin shaft inserted into the pin holes can realize the pin connection of the two. When threaded connection, threaded connection structures can be arranged at the connecting ends of the processing part 223 and the main body part 222, for example, external threads are arranged on the processing part 223 and matching internal threads are arranged on the main body part 222.

[0055] As an example, in the embodiment, one end of the processing part 223 is sleeved on the main body part 222, and a plurality of through holes are arranged at the sleeved part of the processing part 223 along the circumference. A plurality of screw holes are arranged at the sleeved part of the main body part 222 along the circumference. When the processing part 223 is connected with the main body part 222, one end of the processing part 223 is sleeved on the main body part 222, and the through holes are matched with the corresponding screw holes. Then, a threaded connecting piece (such as a screw) is inserted into the through hole and is screwed with the screw hole.

[0056] As shown in Figure 4 and Figure 5 As shown, according to some embodiments of the present application, the rotating drum 220 comprises a plurality of processing parts 223, and the plurality of processing parts 223 are arranged on the main body part 222 along the axial direction.

[0057] By arranging a plurality of processing portions 223 on the main body portion 222 in an axial direction, the processing portions 223 can be provided with scratch processing members according to requirements, so that the device can realize more scratch processing operations in the premise of improving processing efficiency.

[0058] Specifically, by arranging a plurality of processing portions 223, each processing portion 223 can simultaneously perform different types or different depths of scratch processing, avoiding the limitation of a single processing portion 223, and significantly improving the overall processing efficiency and output. Each processing portion 223 can be configured with different scratch processing members according to requirements, such as different shapes, sizes or depths of processing members, so that the device can adapt to various processing requirements and provide diversified processing effects.

[0059] It should be noted that the number, specification and arrangement of the scratch processing members on each processing portion 223 can be the same or different, and no limitation is made.

[0060] Referring to FIGS. 1 and 2, Figure 4 and Figure 5 As an example, in the embodiment, the number of processing portions 223 is two, which are arranged at both ends of the main body portion 222. Four scratch processing members are uniformly and circumferentially arranged on each processing portion 223.

[0061] According to some preferred embodiments of the present application, the conductor processing device comprises a plurality of scratch processing assemblies 200, and the plurality of scratch processing assemblies 200 are arranged in an axial direction of the rotating drum 220.

[0062] By arranging a plurality of scratch processing assemblies 200 in an axial direction of the rotating drum 220, the combination of different scratch processing assemblies 200 can significantly improve the processing efficiency (when a plurality of scratch processing assemblies 200 are arranged, the pulling speed of the conductor 611 can be increased, so that the processing efficiency is improved while the scratch processing effect is ensured). Different forms of scratch processing operations can also be realized, for example, different specifications and numbers of scratch processing members are arranged in different scratch processing assemblies 200, or the distance between adjacent scratch processing assemblies 200 is adjusted.

[0063] Referring to FIGS. 1 and 2, Figure 4 and Figure 5 According to some embodiments of the present application, the scratch processing members are detachably connected to the rotating drum 220.

[0064] By configuring the scratch processing members to be detachably connected to the rotating drum 220, the scratch processing members can be conveniently replaced or maintained when needed. This makes the use of the device more flexible, and the processing assembly can be quickly adjusted or replaced according to different processing requirements, avoiding the extension of the equipment downtime.

[0065] Specifically, the detachable connection mode of the scratch processing piece and the rotating drum 220 includes various modes. For example, clamping, pin connection, threaded connection, etc. When clamping, clamping structures can be respectively arranged at the connection ends of the scratch processing piece and the rotating drum 220, and the clamping connection of the two is realized through the clamping structures; when pin connection, pin holes can be arranged at the connection ends of the scratch processing piece and the rotating drum 220, and the pin shaft is inserted into the pin hole to realize the pin connection of the two; when threaded connection, threaded connection structures can be arranged at the connection ends of the scratch processing piece and the rotating drum 220, for example, external threads are arranged on the scratch processing piece and matching internal threads are arranged on the rotating drum 220.

[0066] Referring to Figure 4 and Figure 5 As shown, according to some preferred embodiments of the present application, the rotating drum 220 is provided with a plurality of installation grooves 224 along the circumferential direction, and one end of the scratch processing piece is arranged in the installation groove 224; further comprising a threaded fastener, the threaded fastener is arranged through the rotating drum 220 and is threadedly matched with the scratch processing piece.

[0067] When assembling, one end of the scratch processing piece is arranged in the corresponding installation groove 224, and then the threaded fastener is arranged through the rotating drum 220 and is threadedly matched with the scratch processing piece, which is simple in structure and can effectively fix the scratch processing piece, ensuring the stability of the device during operation.

[0068] Specifically, referring to Figure 5 As shown, in this embodiment, the end of the rotating drum 220 is provided with a fixing ring 225, the installation groove 224 is formed between the fixing ring 225 and the end of the rotating drum 220, and the fixing ring 225 and the end of the rotating drum 220 are connected by a threaded fastener. When assembling the scratch processing piece, the threaded fastener is arranged through the fixing ring 225 and is threadedly matched with the scratch processing piece in the installation groove 224.

[0069] Referring to Figures 1 to 3 and Figure 6 As shown, according to some embodiments of the present application, the scratch processing device further comprises a guide assembly 300, the guide assembly 300 comprises a first roller shaft group 310 and a second roller shaft group 320, the first roller shaft group 310 and the second roller shaft group 320 are arranged along the axial direction of the rotating drum 220; the first roller shaft group 310 comprises two first roller shafts arranged in parallel and spaced apart, the second roller shaft group 320 comprises two second roller shafts arranged in parallel and spaced apart, the first roller shaft and the second roller shaft are rotatably connected with the mounting seat 100, and the two first roller shafts and the two second roller shafts form a guide channel 330 for guiding the conductor 611.

[0070] By arranging the guide assembly 300, the conductor 611 can be guided and fixed, so that the conductor 611 always maintains coaxial with the rotating drum 220 when being pulled, improving the processing effect of the scratch.

[0071] During processing, the conductor 611 is sequentially passed through the guide channel 330 formed between the first roller group 310 and the second roller group 320 and the conductor channel 221 in the rotating drum 220. Under the limiting action of the two first rollers and the two second rollers, when the conductor 611 is pulled, it can drive the first rollers and the second rollers to roll, ensuring that the conductor 611 can move smoothly under the action of the traction force. At the same time, the conductor 611 and the rotating drum 220 are kept coaxial.

[0072] Specifically, as an example, in this embodiment, the mounting base 100 is provided with a second support 120, and the first roller shaft and the second roller shaft are rotatably connected to the second support 120 through bearings. The two first roller shafts and the two second roller shafts are perpendicular to each other and arranged in a "well" shape, with a guide channel 330 formed at the center.

[0073] Of course, in some embodiments, the two first rollers and the two second rollers can also be arranged at other included angles to form a guide channel 330 at the center position, and there is no limitation on this.

[0074] See Figures 1 to 3 As shown, according to some embodiments of the present invention, the conductor processing apparatus includes a plurality of guide assemblies 300, which are spaced apart along the axial direction of the rotating drum 220.

[0075] By setting multiple guide components 300, multiple positions of the conductor 611 can be guided and supported, further improving the stability of the conductor 611 when it is pulled.

[0076] Specifically, the arrangement of multiple guide components 300 effectively disperses the support points of the conductor 611, preventing bending, offset, or unevenness of the conductor 611 during processing and ensuring that the conductor 611 maintains a stable running trajectory. Each guide component 300 provides local support, allowing the entire conductor 611 to be subjected to force more evenly during traction, thereby improving processing accuracy and the consistency of scratches.

[0077] As an example, in this embodiment, the conductor processing apparatus includes two guide components 300, one of which is located at the inlet end of the rotary drum 220 and the other is located at the outlet end of the rotary drum 220, so as to provide end support for the conductor 611 and ensure its stability during processing.

[0078] See Figures 1 to 3 As shown, according to some embodiments of the present invention, the conductor processing apparatus further includes an air blowing assembly 400, in which an air blowing channel 410 is formed, and the air blowing channel 410 is configured to be connected to an air source.

[0079] By setting the blowing assembly 400, the high-speed gas blown in the blowing channel 410 can be used to remove the metal powder generated by the scratch on the outer wall of the conductor 611, preventing the powder from affecting the surface quality of the conductor 611. During processing, the blowing channel 410 can be connected to a compressed air source, and compressed air is blown into the blowing channel 410 to clean the outer wall of the conductor 611.

[0080] Specifically, in this embodiment, the mounting seat 100 is provided with a third support 130, and the blowing assembly 400 is arranged on the third support 130.

[0081] According to some preferred embodiments of the present application, the scratch processing piece includes a mounting part and a metal brush, the metal brush is arranged on the mounting part, the mounting part is arranged on the rotating drum 220, and the end of the metal brush is located in the conductor channel 221.

[0082] By setting the scratch processing piece in the form of a mounting part and a metal brush, the mounting part can be used to stably install the scratch processing piece on the corresponding position of the rotating drum 220, and the metal brush can be used to process scratches on the outer wall of the conductor 611. At the same time, since the metal brush is composed of densely arranged metal wires, it has a flexible characteristic, and the metal brush will not cause excessive pressure or damage to the outer wall of the conductor 611, thereby avoiding the situation that the processed scratches are too deep. Moreover, the flexible characteristic of the metal brush can adapt to the irregularity of the outer wall of the conductor 611, ensuring that the depth of the processed scratches is uniform and appropriate. In addition, the densely arranged metal wires of the metal brush can effectively contact the outer wall of the conductor 611, forming uniform scratches on the outer wall of the conductor 611 without damaging the overall structure of the conductor 611.

[0083] As a preferred, the metal brush is a steel wire brush.

[0084] Referring to Figures 1 to 3 As shown in the figure, according to some embodiments of the present application, the conductor processing device further includes a base 500, and the mounting seat 100 and the base 500 are slidingly matched in the horizontal direction perpendicular to the axis of the rotating drum 220.

[0085] By setting the base 500 and configuring the mounting seat 100 and the base 500 to be slidingly matched in the horizontal direction perpendicular to the axis of the rotating drum 220, the horizontal position of the mounting seat 100 can be adjusted according to the actual processing requirements, improving the flexibility of the device.

[0086] Specifically, in this embodiment, the base 500 is provided with slide rails 510 at both sides, and the bottom of the mounting seat 100 is provided with a sliding seat 140 corresponding to the slide rails 510, and the sliding seat 140 and the slide rails 510 are slidingly matched.

[0087] The low-shrinkage low-voltage cable 600 provided by the present application will be described below, and the low-shrinkage low-voltage cable 600 described below can be referred to in conjunction with the conductor processing device described above.

[0088] Referring to Figure 7 As shown in the drawings, the low-shrinkage low-voltage cable 600 provided by the embodiments of the present application comprises a conductive unit, the conductive unit comprises a wire 610, the wire 610 comprises a conductor 611 and an insulation layer 612, the outer wall of the conductor 611 is provided with a scratch, the scratch is processed by the conductor processing device as described in any one of the above embodiments, and the inner wall of the insulation layer 612 is in contact with the outer wall of the conductor 611.

[0089] The low-shrinkage low-voltage cable 600 provided by the present application can tightly connect the conductor 611 and the insulation layer 612 of the wire 610 in the conductive unit, and can prevent relative movement between the conductor 611 and the insulation layer 612, because the conductor processing device as described in any one of the above embodiments is used to process the scratch on the outer wall of the conductor 611.

[0090] It should be noted that the number of wires 610 in the conductive unit can be single or multiple, and different numbers of wires 610 can be selected according to different application requirements.

[0091] According to some embodiments of the present application, the insulation layer 612 is made of silane insulation material.

[0092] Since the thermal shrinkage of the insulation layer 612 is a key performance indicator, once the thermal shrinkage of the insulation layer 612 is too large during the use of the cable, the conductor 611 at the end part will be exposed, resulting in cable breakdown or electric shock accidents, affecting the safe and stable operation of the line. By using silane insulation material to make the insulation layer 612, the adhesion between the conductor 611 and the insulation layer 612 can be further increased, the wire end can be effectively prevented from being exposed, and it is suitable for working in an environment with large temperature difference.

[0093] Specifically, silane insulation materials, especially silane cross-linked materials used for electrical insulation, generally exhibit low shrinkage characteristics during the curing process. During the cross-linking reaction of silane insulation materials, a stable three-dimensional network structure is formed, which can effectively reduce the volume change of the material during the curing process, thereby reducing the shrinkage.

[0094] Referring to Figure 7 As shown in the drawings, according to some embodiments of the present application, the conductive unit comprises a plurality of wires 610 and an inner lining layer 620, the plurality of wires 610 are located in the inner lining layer 620, and the inner lining layer 620 is provided with a filling rope 630; the cable further comprises a protective unit, the protective unit comprises an armored layer 640 and an outer protective layer 650, the armored layer 640 is wrapped in the inner lining layer 620, and the outer protective layer 650 is wrapped in the armored layer 640.

[0095] Through the above structural design, the low-shrinkage low-voltage cable 600 provided by the present application provides higher mechanical protection and electrical performance.

[0096] Specifically, the conductive unit includes a plurality of conductive wires 610 and an inner lining layer 620, the plurality of conductive wires 610 are arranged in the inner lining layer 620, and the inner lining layer 620 is provided with a filling rope 630, which can ensure the position stability of the conductive wires 610 in the cable and increase the overall structural strength of the inner lining layer 620 through the filling rope 630, thereby improving the durability of the cable under external forces such as stretching and compression. In addition, the protective unit of the cable includes an armored layer 640 and an outer protective layer 650. The armored layer 640 is wrapped outside the inner lining layer 620, which provides physical protection for the inner lining layer 620 and can effectively prevent external mechanical damage such as impact, stretching or compression, thereby enhancing the anti-external force capability of the cable. The outer protective layer 650 is further wrapped outside the armored layer 640, which plays a protective role in waterproofing, corrosion resistance, and ultraviolet resistance, thereby further improving the environmental resistance of the cable and ensuring the stability and long-term use of the cable in harsh environments.

[0097] In this embodiment, the inner lining layer 620 is preferably a PE (polyethylene) inner lining layer, the armored layer 640 is preferably a metal armored layer 640, and the outer protective layer 650 is preferably a PVC (polyvinyl chloride) outer protective layer 650.

[0098] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A conductor processing apparatus, characterized in that, include: Mounting base; Multiple scratch processing components are provided on the mounting base. Each scratch processing component includes a rotary drive device and a rotating cylinder. The rotating cylinder is rotatably connected to the mounting base. The output end of the rotary drive device is driven to the rotating cylinder to drive the rotating cylinder to rotate. The rotating cylinder has a conductor channel along its axial direction for the passage of a conductor. The rotating cylinder is circumferentially spaced with multiple scratch processing parts for processing scratches on the outer wall of the conductor. The working end of each scratch processing part is located inside the conductor channel. The multiple scratch processing components are spaced apart along the axial direction of the rotating cylinder to improve processing efficiency and / or realize different forms of scratch processing operations. The different forms include at least setting different specifications and numbers of scratch processing parts, and adjusting the spacing between adjacent scratch processing components. The rotating drum includes a main body and a processing part. The processing part is coaxially arranged with the main body and detachably connected. The main body is rotatably connected to the mounting base and is drivenly connected to the output end of the rotary drive device. The processing part is provided with a plurality of the scratch processing parts at intervals along the circumference. The rotating drum includes a plurality of processing sections, which are spaced apart along the axial direction on the main body.

2. The conductor processing apparatus according to claim 1, characterized in that, The scratched part is detachably connected to the rotating drum.

3. The conductor processing apparatus according to claim 2, characterized in that, The rotating drum is provided with multiple mounting grooves spaced apart along the circumference, and one end of the scratched workpiece is located in the mounting groove; It also includes threaded fasteners, which pass through the rotating drum and engage with the threads of the scratched workpiece.

4. The conductor processing apparatus according to any one of claims 1 to 3, characterized in that, It also includes a guide assembly, which includes a first roller group and a second roller group, the first roller group and the second roller group being spaced apart along the axial direction of the rotating drum; The first roller group includes two parallel and spaced-apart first rollers, and the second roller group includes two parallel and spaced-apart second rollers. Both the first rollers and the second rollers are rotatably connected to the mounting base, and a guide channel for guiding the conductor is formed between the two first rollers and the two second rollers.

5. The conductor processing apparatus according to claim 4, characterized in that, It includes a plurality of the guide components, which are spaced apart along the axial direction of the rotating drum.

6. The conductor processing apparatus according to any one of claims 1 to 3, characterized in that, It also includes an air blowing assembly, which has an air blowing channel formed therein, and the air blowing channel is configured to be connected to an air source.

7. The conductor processing apparatus according to any one of claims 1 to 3, characterized in that, The scratch-processing part includes a mounting part and a metal brush. The metal brush is disposed in the mounting part, which is located in the rotating drum. The end of the metal brush is located in the conductor channel.

8. The conductor processing apparatus according to any one of claims 1 to 3, characterized in that, It also includes a base, and the mounting base is slidably engaged with the base in a horizontal direction perpendicular to the axis of the rotating drum.

9. A low-shrinkage low-voltage cable, characterized in that, include: A conductive unit, the conductive unit comprising a wire, the wire comprising a conductor and an insulating layer, the outer wall of the conductor having scratches, the scratches being processed by a conductor processing apparatus as described in any one of claims 1 to 8; The insulating layer covers the conductor, and the inner wall of the insulating layer is in contact with the outer wall of the conductor.

10. The low-shrinkage low-voltage cable according to claim 9, characterized in that, The insulating layer is made of silane insulating material.

11. The low-shrinkage low-voltage cable according to claim 9 or 10, characterized in that, The conductive unit includes a plurality of wires and an inner liner, wherein the plurality of wires are located inside the inner liner and the inner liner is provided with a filler rope. The cable further includes a protective unit, which includes an armor layer and an outer sheath, wherein the armor layer covers the inner liner layer and the outer sheath covers the armor layer.

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