Conductor processing device and low-shrinkage low-voltage cable

Abstract

The invention relates to the technical field of cables, in particular 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 rotary drum, the rotary drum is rotationally connected with the mounting base, the output end of the rotary driving device is in transmission connection with the rotary drum, a conductor channel for the conductor to pass through is formed in the rotary drum in the axial direction, and a plurality of scratch processing pieces for processing scratches on the outer wall of the conductor are arranged on the rotary drum in the circumferential direction at intervals. According to the conductor processing device provided by the invention, during processing, the rotary driving device drives the rotary drum to rotate, meanwhile, the conductor is placed in the conductor channel and pulled according to the set speed, and under the action of the multiple scratch processing pieces, scratches in specific shapes can be processed on the outer wall of the conductor; the scratches can improve the friction effect between the outer wall of the conductor and the inner wall of the insulating layer, thereby effectively preventing relative sliding between the conductor and the insulating layer.

Description

Technical Field

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

[0002] At present, low-voltage power cables generally use cross-linked polyethylene (XLPE) as the insulation material. This material has excellent properties, including good heat resistance, high mechanical strength and strong load capacity.

[0003] Extrusion is a common method used in existing cable production. While this method offers high production speeds and output, it can also lead to separation between the insulation layer and the conductor due to a lack of tight contact between the insulation layer and the conductor's outer wall. This can cause relative slip between the insulation layer and the conductor, particularly in small-section, low-voltage cables. Furthermore, the smoother outer wall of a shaped conductor compared to a conventional round conductor reduces adhesion during production, making relative slip between the insulation layer and the conductor more likely. Summary of the Invention

[0004] The present invention provides a conductor processing device and a low-shrinkage low-voltage cable, which are used to solve the defect that the insulation layer and the conductor are easily separated and cause relative sliding between the insulation layer and the conductor in cables produced by the tube extrusion production method in the prior art.

[0005] One aspect of the present invention provides a conductor processing device, comprising: a mounting seat and a scratch processing component, wherein the scratch processing component is arranged on the mounting seat.

[0006] The scratching processing assembly includes a rotary drive device and a rotating drum, the rotating drum is rotatably connected to the mounting seat, the output end of the rotary drive device is transmission-connected to the rotating drum to drive the rotating drum to rotate, the rotating drum is formed with a conductor channel for the conductor to pass through along the axial direction, and the rotating drum is provided with a plurality of scratching processing parts for processing scratches on the outer wall of the conductor at intervals along the circumferential direction, and the working ends of the scratching processing parts are located in the conductor channel.

[0007] According to the conductor processing device provided by the present invention, the rotating drum includes a main body and a processing part, the processing part is coaxially arranged with the main body and is detachably connected, the main body is rotatably connected to the mounting seat, the main body is transmission-connected to the output end of the rotary drive device, and the processing part is provided with a plurality of the scratching processing parts at intervals along the circumferential direction.

[0008] According to the conductor processing device provided by the present invention, the rotary drum includes a plurality of the processing parts, and the plurality of processing parts are arranged on the main body at intervals along the axial direction.

[0009] The conductor processing device provided by the present invention comprises a plurality of the aforementioned scratching processing assemblies, and the plurality of the aforementioned scratching processing assemblies are arranged at intervals along the axial direction of the rotating drum.

[0010] According to the conductor processing device provided by the present invention, the scratching processing member is detachably connected to the rotating drum.

[0011] According to the conductor processing device provided by the present invention, the rotating drum is provided with a plurality of mounting grooves spaced apart along the circumferential direction, and one end of the scoring workpiece is arranged in the mounting groove; it also includes a threaded fastener, which is passed through the rotating drum and threadably engaged with the scoring workpiece.

[0012] The conductor processing device provided according to the present invention also includes a guide assembly, which includes a first roller group and a second roller group, and the first roller group and the second roller group are arranged at intervals along the axial direction of the rotating drum; the first roller group includes two first rollers arranged in parallel with each other, and the second roller group includes two second rollers arranged in parallel with each other, and the first rollers and the second rollers are both rotatably connected to the mounting seat, and a guide channel for guiding the conductor is formed between the two first rollers and the two second rollers.

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

[0014] The conductor processing device provided according to the present invention further includes an air blowing component, wherein an air blowing channel is formed in the air blowing component, and the air blowing channel is configured to be connected to an air source.

[0015] According to the conductor processing device provided by the present invention, the scratch processing member includes a mounting portion and a metal brush, the metal brush is provided on the mounting portion, the mounting portion is provided on the rotating drum, and the end of the metal brush is located in the conductor channel.

[0016] The conductor processing device provided according to the present invention further includes a base, and the mounting seat and the base are slidably matched along a horizontal direction perpendicular to the axis of the rotating drum.

[0017] On the other hand, the present invention provides a low-shrinkage, low-voltage cable, comprising: a conductive unit, the conductive unit comprising a wire, the wire comprising a conductor and an insulating layer, the outer wall of the conductor being provided with scratches, the scratches being processed by a conductor processing device as described in any of the above items, the insulating layer being coated on the conductor, and the inner wall of the insulating layer being in contact with the outer wall of the conductor.

[0018] According to the low-shrinkage low-voltage cable provided by the present invention, the insulating layer is made of silane insulating material.

[0019] According to the low-shrinkage low-voltage cable provided by the present invention, the conductive unit includes a plurality of the conductive wires and an inner lining layer, the plurality of conductive wires are located in the inner lining layer, and a filling rope is provided in the inner lining layer; the cable also includes: a protective unit, the protective unit includes an armor layer and an outer sheath, the armor layer is covered on the inner lining layer, and the outer sheath is covered on the armor layer.

[0020] The conductor processing device provided by the present invention, during processing, a rotary drive device drives the rotating drum to rotate, and at the same time, the conductor is placed in the conductor channel and the conductor is pulled at a set speed. Under the action of multiple scratching processing parts arranged at intervals along the circumference of the rotating drum, scratches with specific shapes can be processed on the outer wall of the conductor. The scratches can increase the friction between the outer wall of the conductor and the inner wall of the insulating layer, thereby effectively preventing relative sliding between the conductor and the insulating layer.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is one of the schematic diagrams of the conductor processing device provided by an embodiment of the present invention.

[0024] Figure 2 This is the second schematic diagram of the conductor processing device provided by an embodiment of the present invention.

[0025] Figure 3 This is the third schematic diagram of the conductor processing device provided by an embodiment of the present invention.

[0026] Figure 4 Schematic diagram of a scratch processing component in a conductor processing device provided in an embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of a rotating drum in a conductor processing device provided in an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of a guide assembly in a conductor processing device provided in an embodiment of the present invention.

[0029] Figure 7 It is a cross-sectional schematic diagram of a low-shrinkage low-voltage cable provided by an embodiment of the present invention.

[0030] Reference numerals: 100. Mounting seat; 110. First support; 120. Second support; 130. Third support; 140. Slide; 200. Scratching processing assembly; 210. Rotary drive device; 220. Rotating drum; 221. Conductor channel; 222. Main body; 223. Processing part; 224. Mounting groove; 225. Fixing ring; 300. Guide assembly; 310. First roller group; 320. Second roller group; 330. Guide channel; 400. Blowing assembly; 410. Blowing channel; 500. Base; 510. Slide rail; 600. Low-shrinkage low-voltage cable; 610. Wire; 611. Conductor; 612. Insulation layer; 620. Lining layer; 630. Filling rope; 640. Armor layer; 650. Outer sheath. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0034] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0036] The following combination Figures 1 to 7 The present invention describes a conductor processing device and a low-shrinkage low-voltage cable.

[0037] See also Figures 1 to 3 As shown, the conductor processing device provided by the embodiment of the present invention includes: a mounting seat 100 and a scratch processing assembly 200 , and the scratch processing assembly 200 is arranged on the mounting seat 100 .

[0038] The scratching processing assembly 200 includes a rotary drive device 210 and a rotating drum 220. The rotating drum 220 is rotatably connected to the mounting base 100. The output end of the rotary drive device 210 is transmission-connected to the rotating drum 220 to drive the rotating drum 220 to rotate. The rotating drum 220 is formed with a conductor channel 221 along the axial direction for the conductor 611 to pass through. The rotating drum 220 is provided with a plurality of scratching processing parts (not shown in the figure) for processing scratches on the outer wall of the conductor 611 at intervals along the circumference. The working end of the scratching processing part is located in the conductor channel 221.

[0039] In the conductor processing device provided by the present invention, during processing, the rotary drive device 210 drives the drum to rotate, and at the same time, the conductor 611 is placed in the conductor channel 221 and the conductor 611 is pulled at a set speed. Under the action of multiple scratching processing parts arranged at intervals along the circumference of the drum 220, scratches with a specific shape can be processed on the outer wall of the conductor 611. The scratches can increase the friction between the outer wall of the conductor 611 and the inner wall of the insulating layer 612, thereby effectively preventing relative sliding between the conductor 611 and the insulating layer 612.

[0040] Specifically, the mounting base 100 supports and secures the structural components of the entire conductor processing apparatus, providing a stable mounting base for the scoring assembly 200. It ensures the stability of the scoring assembly 200, the rotary drive device 210, and the drum 220. It also provides a mounting position for the drum 220 and the rotary drive device 210, ensuring that the drum 220 can rotate and transmit power to process the conductor 611.

[0041] The scoring assembly 200 is used to process scratches of a predetermined shape on the outer wall of the conductor 611, thereby increasing the friction between the conductor 611 and the insulating layer 612 through the scratches. The number of the scoring assembly 200 is at least one, that is, it can be single or multiple. For example, when the number of the scoring assembly 200 is single, the outer wall of the conductor 611 can be scored by using a plurality of scoring members arranged circumferentially spaced apart on the rotating drum 220 of the single scoring assembly 200; when the number of the scoring assembly 200 is multiple, the rotating drums 220 of the multiple scoring assemblies 200 are coaxially arranged, and an axial spacing is provided between the rotating drums 220 of adjacent scoring assemblies 200. Through the synergistic effect of the multiple scoring assemblies 200, more types of scratches can be processed on the outer wall of the conductor 611, and the processing efficiency can be improved. In the multiple scratch processing assemblies 200 , each rotating drum 220 can be independently driven by the rotation driving device 210 , so that each rotating drum 220 can rotate at different speeds according to actual needs to process scratches of set specifications on the outer wall of the conductor 611 .

[0042] Furthermore, when there are multiple scoring assemblies 200, the specifications of different scoring assemblies 200 may be the same or different. For example, the number, layout, and parameter specifications of the scoring components on the rotating drum 220 of different scoring assemblies 200 may be the same or different, and this is not limited.

[0043] The rotating drum 220 is provided with a plurality of scoring elements spaced apart along the circumference thereof for producing scores on the outer wall of the conductor 611. The scoring elements may be arranged circumferentially on the rotating drum 220 in a uniform or non-uniform arrangement, without limitation. Furthermore, the specifications of the scoring elements on the same rotating drum 220 may be the same or different, without limitation.

[0044] See also Figures 1 to 3 As shown, in the embodiment of the present invention, the number of the scoring assembly 200 is taken as a single example, and four scoring components are provided on the outer walls of both ends of the rotating drum 220 at intervals along the circumferential direction, and the four scoring components are all of the same specifications.

[0045] The scoring tool can take various forms. For example, multiple protrusions can be provided at intervals along the circumference of the inner wall of the rotating drum 220, and the tips of the protrusions can be used to score the outer wall of the conductor 611. For example, multiple scoring tools can be provided at intervals along the circumference of the inner wall of the rotating drum 220, and the working parts of the tools can be used to score the outer wall of the conductor 611. For example, multiple metal brushes can be provided at intervals along the circumference of the inner wall of the rotating drum 220, and the metal brushes can be used to score the outer wall of the conductor 611. In specific implementations, the corresponding scoring tool can be selected based on the type of score to be produced.

[0046] See also Figures 1 to 4 As shown, the scribing assembly 200 includes a rotary drive device 210 and a rotating drum 220. The rotary drive device 210 is mounted on the mounting base 100, and the rotating drum 220 is rotatably mounted on the base 500. The output end of the rotary drive device 210 is in transmission connection with the rotating drum 220, so that when the rotary drive device 210 is activated, the rotating drum 220 is driven to rotate in a set direction.

[0047] As an example, in this embodiment, a first support 110 is provided on the mounting seat 100, and the middle portion of the rotating drum 220 is rotatably connected to the first support 110, so that the rotating drum 220 can freely rotate relative to the mounting seat 100 with its own axis as the rotation axis.

[0048] The rotation drive device 210 is preferably a drive motor. The drive motor can be connected to the rotating drum 220 using a common existing transmission structure such as a gear drive, chain drive, or belt drive, without limitation. To accurately control the rotation speed of the rotating drum 220, a reduction mechanism can be provided between the drive motor and the rotating drum 220 to control the drive ratio within a reasonable range, or a reduction motor can be used as the drive motor.

[0049] The driving motor is preferably a servo motor, which is controlled to start, stop, direction and speed by an electric control cabinet provided on the mounting base 100 .

[0050] See also Figures 1 to 4As shown, as an example, in this embodiment, the output end of the rotary drive device 210 is connected to the drum 220 through a belt transmission mechanism. Accordingly, the outer wall of the drum 220 is provided with a pulley groove along the circumferential direction.

[0051] See also Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the rotating drum 220 includes a main body 222 and a processing part 223. The processing part 223 is coaxially arranged with the main body 222 and is detachably connected. The main body 222 is rotatably connected to the mounting seat 100. The main body 222 is transmission-connected to the output end of the rotating drive device 210. The processing part 223 is provided with a plurality of scratched processing parts at intervals along the circumference.

[0052] By arranging the processing portion 223 and the main body 222 coaxially and detachably connected, and arranging the scoring elements circumferentially on the processing portion 223, the processing portion 223 can be removed from the main body 222 to facilitate maintenance or replacement of the scoring elements on the processing portion 223. This allows users to perform maintenance or replacement of the scoring elements without disassembling the entire drum 220.

[0053] Specifically, the processing portion 223 and the main body 222 can be detachably connected in a variety of ways. For example, a snap connection, a pin connection, and a threaded connection can be used. For a snap connection, a corresponding snap connection structure can be provided at the connection end between the processing portion 223 and the main body 222 to achieve a snap connection between the two. For a pin connection, a pin hole can be provided at the connection end between the processing portion 223 and the main body 222, and a pin shaft can be inserted into the pin hole to achieve a pin connection between the two. For a threaded connection, a threaded connection structure can be provided at the connection end between the processing portion 223 and the main body 222, for example, an external thread can be provided on the processing portion 223 and a matching internal thread can be provided on the main body 222.

[0054] As an example, in this embodiment, one end of the processing portion 223 is sleeved on the main body portion 222, and the sleeved portion of the processing portion 223 is provided with a plurality of through holes at intervals along the circumferential direction, and the sleeved portion of the main body portion 222 is provided with a plurality of screw holes at intervals along the circumferential direction. When the processing portion 223 is connected to the main body portion 222, one end of the processing portion 223 is sleeved on the main body portion 222, and the through hole is aligned with the corresponding screw hole, and then a threaded connection part (such as a screw) is used to pass through the through hole and threadedly connect with the screw hole.

[0055] See also Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the drum 220 includes a plurality of processed portions 223 , and the plurality of processed portions 223 are axially spaced apart from each other on the main body 222 .

[0056] By arranging a plurality of processing parts 223 at intervals along the axial direction on the main body 222, scratching processing parts can be arranged on each processing part 223 according to needs. On the premise of improving processing efficiency, the device can also realize more scratching processing operations.

[0057] Specifically, by providing multiple processing sections 223, each processing section 223 can simultaneously perform different types of scratching or different depths, avoiding the limitations of a single processing section 223 and significantly improving overall processing efficiency and output. Each processing section 223 can be equipped with different scratching components as needed, such as components of different shapes, sizes, or depths, allowing the device to adapt to various processing requirements and provide diverse processing effects.

[0058] It should be noted that the number, specifications and arrangement of the scratching parts on each processing portion 223 can be the same or different, and there is no limitation on this.

[0059] See also Figure 4 and Figure 5 As shown, as an example, in this embodiment, there are two processing parts 223, which are respectively provided at both ends of the main body 222. Each processing part 223 is provided with four scratching processing parts evenly spaced along the circumference.

[0060] According to some preferred embodiments of the present invention, the conductor processing device includes a plurality of scribing processing assemblies 200 , which are spaced apart along the axial direction of the rotating drum 220 .

[0061] By disposing multiple scoring assemblies 200 at intervals along the axial direction of the rotating drum 220, the combined action of the different scoring assemblies 200 can significantly improve processing efficiency. (When multiple scoring assemblies 200 are provided, the pulling speed of the conductor 611 can be increased, thereby ensuring the scoring effect while improving processing efficiency.) Different types of scoring operations can also be implemented, for example, by arranging different sizes and quantities of scoring components in different scoring assemblies 200, or by adjusting the spacing between adjacent scoring assemblies 200.

[0062] See also Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the scoring workpiece is detachably connected to the rotating drum 220.

[0063] By configuring the scoring component and the rotating drum 220 to be detachably connected, the scoring component can be easily replaced or maintained when needed, making the device more flexible to use and enabling rapid adjustment or replacement of processing components according to different processing requirements, thereby avoiding extended equipment downtime.

[0064] Specifically, the scored workpiece and the rotating drum 220 can be removably connected in a variety of ways, including snap-fitting, pinning, and threading. For snap-fitting, a snap-fit structure can be provided at each end of the scored workpiece and the rotating drum 220, achieving a snap-fit connection between the two. For pinning, a pin hole can be provided at the end of the scored workpiece and the rotating drum 220, and a pin shaft can be inserted into the hole to achieve the pin connection. For threading, a threaded connection structure can be provided at the end of the scored workpiece and the rotating drum 220, for example, external threads can be provided on the scored workpiece and matching internal threads can be provided on the rotating drum 220.

[0065] See also Figure 4 and Figure 5 As shown, according to some preferred embodiments of the present invention, the rotating drum 220 is provided with a plurality of mounting grooves 224 spaced apart along the circumference, and one end of the scoring workpiece is arranged in the mounting groove 224; it also includes a threaded fastener, which is passed through the rotating drum 220 and is threadedly matched with the scoring workpiece.

[0066] During assembly, one end of the scored workpiece is placed in the corresponding mounting groove 224, and then the threaded fastener is passed through the rotating drum 220 and matched with the thread of the scored workpiece. The structure is simple and can effectively fix the scored workpiece to ensure the stability of the device during operation.

[0067] Specifically, see Figure 5 As shown, in this embodiment, a fixing ring 225 is provided at the end of the rotating drum 220. The aforementioned mounting groove 224 is formed between the fixing ring 225 and the end of the rotating drum 220. The fixing ring 225 and the end of the rotating drum 220 are connected by a threaded fastener. When assembling the scored workpiece, the threaded fastener is inserted through the fixing ring 225 and engages with the threaded part in the mounting groove 224.

[0068] See also Figures 1 to 3 as well as Figure 6 As shown, according to some embodiments of the present invention, the scratching processing device also includes a guide assembly 300, the guide assembly 300 includes a first roller group 310 and a second roller group 320, the first roller group 310 and the second roller group 320 are arranged at intervals along the axial direction of the rotating drum 220; the first roller group 310 includes two first rollers arranged in parallel with each other, the second roller group 320 includes two second rollers arranged in parallel with each other, both of the first rollers and the second rollers are rotatably connected to the mounting seat 100, and a guide channel 330 for guiding the conductor 611 is formed between the two first rollers and the two second rollers.

[0069] By providing the guide assembly 300 , the conductor 611 can be guided and fixed, so that the conductor 611 always remains coaxial with the drum 220 when being pulled, thereby improving the processing effect of the scratching.

[0070] 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, the conductor 611 can drive the first roller and the second roller to roll when being pulled, ensuring that the conductor 611 can move smoothly under the action of the traction force, and at the same time, keep the conductor 611 coaxial with the rotating drum 220.

[0071] Specifically, as an example, in this embodiment, a second support 120 is provided on the mounting base 100. The first and second rollers are rotatably connected to the second support 120 via bearings. The two first rollers and the two second rollers are perpendicular to each other and arranged in a "well" shape, with a guide channel 330 formed at the center.

[0072] Of course, in some embodiments, the two first rollers and the two second rollers may also be arranged according to other angles, as long as the guide channel 330 can be formed at the center position, and there is no limitation on this.

[0073] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, the conductor processing device includes a plurality of guide assemblies 300 , and the plurality of guide assemblies 300 are arranged at intervals along the axial direction of the rotating drum 220 .

[0074] By providing a plurality of guide assemblies 300 , it is possible to provide guidance and support for a plurality of positions of the conductor 611 , further improving the stability of the conductor 611 when being pulled.

[0075] Specifically, the provision of multiple guide assemblies 300 effectively disperses the support points of conductor 611, preventing bending, offset, or unevenness of conductor 611 during processing, and ensuring that conductor 611 maintains a stable trajectory. Each guide assembly 300 provides localized support, allowing the entire conductor 611 to be more evenly affected by force during traction, thereby improving processing accuracy and scratch consistency.

[0076] As an example, in this embodiment, the conductor processing device includes two guide assemblies 300, one of which is located at the inlet end of the rotating drum 220, and the other is located at the outlet end of the rotating drum 220, so as to form two-end support for the conductor 611 to ensure its stability during processing.

[0077] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, the conductor processing device further includes a blowing assembly 400 , wherein a blowing channel 410 is formed in the blowing assembly 400 , and the blowing channel 410 is configured to be connected to an air source.

[0078] By providing the air blowing assembly 400, high-speed air blown from the air blowing channel 410 can be used to remove metal powder generated by scratches on the outer wall of the conductor 611, preventing residual powder from affecting the surface quality of the conductor 611. During processing, the air blowing channel 410 can be connected to an external compressed air source, which can be used to blow compressed air into the air blowing channel 410 to clean the outer wall of the conductor 611.

[0079] Specifically, in this embodiment, a third support 130 is provided on the mounting base 100 , and the blowing assembly 400 is provided on the third support 130 .

[0080] According to some preferred embodiments of the present invention, the scratching workpiece includes a mounting portion and a metal brush. The metal brush is provided on the mounting portion. The mounting portion is provided on the rotating drum 220 . The end of the metal brush is located in the conductor channel 221 .

[0081] By configuring the scratching workpiece in the form of a mounting portion and a metal brush, the mounting portion can be used to stably mount the scratching workpiece to 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, because the metal brush is composed of densely distributed metal wires, it has flexible properties and will not cause excessive pressure or damage to the outer wall of the conductor 611, thereby avoiding the situation where the processing scratches are too deep. This flexibility allows the metal brush to adapt to the irregularities of the outer wall of the conductor 611, ensuring that the depth of the processed scratches is uniform and appropriate. In addition, the dense 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.

[0082] Preferably, the metal brush is a wire brush.

[0083] See also Figures 1 to 3 As shown, according to some embodiments of the present invention, the conductor processing device further includes a base 500 , and the mounting seat 100 and the base 500 are slidably matched along a horizontal direction perpendicular to the axis of the rotating drum 220 .

[0084] By providing the base 500 and configuring the mounting seat 100 and the base 500 to slide together in a horizontal direction perpendicular to the axis of the drum 220, the horizontal position of the mounting seat 100 can be adjusted according to actual processing requirements, thereby improving the flexibility of the device.

[0085] Specifically, in this embodiment, slide rails 510 are spaced apart on both sides of the base 500 , and a slide seat 140 is correspondingly provided at the bottom of the mounting base 100 , and the slide seat 140 is slidably engaged with the slide rails 510 .

[0086] The low-shrinkage low-voltage cable 600 provided by the present invention is described below. The low-shrinkage low-voltage cable 600 described below and the conductor processing device described above can be referenced to each other.

[0087] See also Figure 7 As shown, the low-shrinkage low-voltage cable 600 provided in an embodiment of the present invention includes: a conductive unit, the conductive unit includes a wire 610, the wire 610 includes a conductor 611 and an insulating layer 612, the outer wall of the conductor 611 is provided with scratches, and the scratches are processed by the conductor processing device described in any of the above embodiments, the insulating layer 612 is coated on the conductor 611, and the inner wall of the insulating layer 612 is in contact with the outer wall of the conductor 611.

[0088] The low-shrinkage low-voltage cable 600 provided by the present invention uses the conductor processing device described in any of the above embodiments to process scratches on the outer wall of the conductor 611. Therefore, the conductor 611 and the insulating layer 612 of the wire 610 in the conductive unit can be tightly connected, and relative movement between the conductor 611 and the insulating layer 612 can be prevented.

[0089] It should be noted that, in the conductive unit, the number of the conductive wires 610 may be single or multiple, and different numbers of conductive wires 610 may be selected according to different application requirements.

[0090] According to some embodiments of the present invention, the insulating layer 612 is made of silane insulating material.

[0091] Since thermal shrinkage of insulation layer 612 is a key performance indicator, excessive thermal shrinkage during cable use could expose conductor 611 at the end, potentially leading to cable breakdown or electric shock, affecting safe and stable operation of the line. Using silane as insulation material further enhances the adhesion between conductor 611 and insulation layer 612, effectively preventing wire end exposure and making it suitable for use in environments with large temperature differences.

[0092] Specifically, silane insulating materials, especially silane cross-linked materials used for electrical insulation, usually exhibit low shrinkage characteristics during the curing process. During the cross-linking reaction, silane insulating materials form a stable three-dimensional network structure. This structure can effectively reduce the volume change of the material during the curing process, thereby reducing shrinkage.

[0093] See also Figure 7 As shown, according to some embodiments of the present invention, the conductive unit includes a plurality of conductors 610 and an inner lining layer 620, the plurality of conductors 610 are located in the inner lining layer 620, and a filling rope 630 is provided in the inner lining layer 620; the cable also includes: a protective unit, the protective unit includes an armor layer 640 and an outer sheath 650, the armor layer 640 is covered on the inner lining layer 620, and the outer sheath 650 is covered on the armor layer 640.

[0094] Through the above structural design, the low-shrinkage low-voltage cable 600 provided by the present invention provides higher mechanical protection and electrical performance.

[0095] Specifically, the conductive unit includes a plurality of conductors 610 and an inner lining layer 620. The plurality of conductors 610 are arranged in the inner lining layer 620, and a filling rope 630 is provided in the inner lining layer 620 to ensure the stability of the position of the conductors 610 in the cable. The filling rope 630 increases the overall structural strength of the inner lining layer 620, thereby improving the durability of the cable under external forces such as tension and compression. In addition, the protective unit of the cable includes an armor layer 640 and an outer sheath 650. The armor layer 640 is coated on the outside of the inner lining layer 620, providing physical protection for the inner lining layer 620, and can effectively prevent external mechanical damage such as impact, tension or compression, thereby enhancing the cable's ability to resist external forces. The outer sheath 650 is further coated on the outside of the armor layer 640, and plays a protective role such as waterproofing, corrosion resistance, and UV resistance, further improving the cable's ability to resist environmental influences and ensuring the stability and long-term use of the cable in harsh environments.

[0096] In this embodiment, the inner lining layer 620 is preferably a PE (polyethylene) inner lining layer, the armor layer 640 is preferably a metal armor layer 640 , and the outer sheath 650 is preferably a PVC (polyvinyl chloride) outer sheath 650 .

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A conductor processing device, characterized in that: include: Mounting seat; A scratching processing component is arranged on the mounting seat, and the scratching processing component includes a rotary drive device and a rotating drum. The rotating drum is rotatably connected to the mounting seat, and the output end of the rotary drive device is transmission-connected to the rotating drum to drive the rotating drum to rotate. The rotating drum is formed with a conductor channel for the conductor to pass through along the axial direction. The rotating drum is provided with a plurality of scratching processing parts for processing scratches on the outer wall of the conductor at intervals along the circumferential direction, and the working ends of the scratching processing parts are located in the conductor channel.

2. The conductor processing device according to claim 1, characterized in that The rotating drum includes a main body and a processing part. The processing part is coaxially arranged with the main body and is detachably connected. The main body is rotatably connected to the mounting seat. The main body is transmission-connected to the output end of the rotary drive device. The processing part is provided with a plurality of the scratching processing parts at intervals along the circumferential direction.

3. The conductor processing device according to claim 2, characterized in that The rotating drum includes a plurality of the processing parts, and the plurality of the processing parts are arranged on the main body at intervals along the axial direction.

4. The conductor processing device according to claim 1, wherein The invention comprises a plurality of the scratching processing components, and the plurality of the scratching processing components are arranged at intervals along the axial direction of the rotating drum.

5. The conductor processing device according to claim 1, characterized in that The scratching workpiece is detachably connected to the rotating drum.

6. The conductor processing device according to claim 5, characterized in that The rotating drum is provided with a plurality of mounting grooves spaced apart along the circumferential direction, and one end of the scoring workpiece is arranged in the mounting groove; It also includes a threaded fastener, which is passed through the rotating cylinder and is threadably matched with the scratched workpiece.

7. The conductor processing device according to any one of claims 1 to 6, characterized in that: The invention also includes a guide assembly, wherein the guide assembly includes a first roller group and a second roller group, wherein the first roller group and the second roller group are spaced apart along the axial direction of the rotating drum; The first roller group includes two first rollers arranged parallel to each other and spaced apart, and the second roller group includes two second rollers arranged parallel to each other and spaced apart. The first rollers and the second rollers are both rotatably connected to the mounting seat, and a guide channel for guiding the conductor is formed between the two first rollers and the two second rollers.

8. The conductor processing device according to claim 7, characterized in that The invention comprises a plurality of guide assemblies, which are arranged at intervals along the axial direction of the rotating drum.

9. The conductor processing device according to any one of claims 1 to 6, characterized in that: It also includes an air blowing component, in which an air blowing channel is formed. The air blowing channel is configured to be connected to an air source.

10. The conductor processing device according to any one of claims 1 to 6, characterized in that: The scratching processing member includes a mounting portion and a metal brush. The metal brush is arranged on the mounting portion. The mounting portion is arranged on the rotating drum. The end of the metal brush is located in the conductor channel.

11. The conductor processing device according to any one of claims 1 to 6, characterized in that: It also includes a base, and the mounting seat and the base are slidably matched along a horizontal direction perpendicular to the axis of the rotating drum.

12. A low-shrinkage, low-voltage cable, characterized in that: include: A conductive unit, wherein the conductive unit comprises a wire, the wire comprises a conductor and an insulating layer, the outer wall of the conductor is provided with scratches, and the scratches are processed by the conductor processing device according to any one of claims 1 to 11; The insulating layer covers the conductor, and the inner wall of the insulating layer contacts the outer wall of the conductor.

13. The low-shrinkage, low-voltage cable according to claim 12, characterized in that: The insulating layer is made of silane insulating material.

14. The low-shrinkage low-voltage cable according to claim 12 or 13, characterized in that: The conductive unit comprises a plurality of conductive wires and an inner lining layer, wherein the plurality of conductive wires are located in the inner lining layer, and a filling rope is provided in the inner lining layer; The cable further comprises: a protection unit, wherein the protection unit comprises an armor layer and an outer protective layer, wherein the armor layer is coated on the inner lining layer, and the outer protective layer is coated on the armor layer.

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