Cable conductor surface pretreatment equipment for cable manufacturing

By designing grinding and coating devices for cable manufacturing equipment, combined with extrusion and adjustment mechanisms, the problem of uneven coating on the surface of cable conductors was solved, achieving uniform coating adhesion and efficient curing, thus improving cable quality.

CN120854080AInactive Publication Date: 2025-10-28ANHUI YINGKESONG CABLE GROUP CO LTD
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Patent Information

Application Number
CN202511028928.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2025-10-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing cable manufacturing equipment often results in uneven coating coverage due to burrs, dirt, or oxide scale on the surface of cable conductors, affecting adhesion and service life.

Method used

A cable conductor surface pretreatment device for cable manufacturing has been designed, comprising a grinding device and a coating device. The grinding device and the coating device are driven to rotate by a drive mechanism. Combined with an extrusion component and an adjustment device, the device ensures effective grinding and coating of cable conductors of different diameters. The conductors are then dried through a drying tube.

Benefits of technology

It achieves effective grinding and coating of cable conductor surfaces, ensuring uniform coating adhesion, improving coating adhesion and service life, avoiding the phenomenon of being unable to grind due to the thinning of the grinding block, and improving the curing efficiency of the coating through the drying tube.

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Abstract

The invention relates to the technical field of cable conductor surface pretreatment, in particular to cable conductor surface pretreatment equipment for cable manufacturing, which comprises a coating device shell main body, one side of the coating device shell main body is rotatably connected with a grinding device, and the grinding device is used for grinding and polishing the surface of a cable conductor. An extrusion assembly is arranged in the grinding device, the extrusion assembly is matched with the grinding device, and the extrusion assembly is used for adjusting the grinding device to grind and polish cables with different diameters, so that cable conductors with different diameters can be ground; and the phenomenon that the cable conductor cannot be polished due to the fact that the use thickness of the polishing block is reduced is avoided.
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Description

Technical Field

[0001] This invention relates to the field of cable conductor surface pretreatment technology, specifically to a cable conductor surface pretreatment device for cable manufacturing. Background Technology

[0002] Cable conductor surface pretreatment refers to the process of removing impurities, oxide layers, and rust from the conductor surface during cable manufacturing to achieve a clean and smooth surface, thereby improving the adhesion and service life of coatings or anti-corrosion layers. It is a series of treatment operations performed to ensure the quality of the conductor surface and to enhance the adhesion and performance of subsequent coatings or protective layers.

[0003] Current cable conductor surface pretreatment equipment requires coating treatment of the outer surface of the cable conductor in the subsequent work of manufacturing the cable conductor. However, the cable surface is prone to burrs, dirt or oxide scale, which makes it difficult for some parts of the cable conductor to be covered by the coating.

[0004] The present invention aims to solve the technical problems existing in the prior art. To this end, a cable conductor surface pretreatment device for cable manufacturing is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a cable conductor surface pretreatment device for cable manufacturing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cable conductor surface pretreatment device for cable manufacturing includes a coating device housing body. A grinding device is rotatably connected to one side of the coating device housing body body. The grinding device is used to grind and polish the surface of the cable conductor. An extrusion component is provided inside the grinding device. The extrusion component cooperates with the grinding device. The extrusion component is used to adjust the grinding device to grind and polish cables of different diameters.

[0008] The coating device is housed inside the outer shell of the coating device. The coating device is used to spray coating on the surface of the cable conductor. The coating device is also equipped with an adjustment device that works in conjunction with the coating device. The coating device is used to adjust the coating device to spray coating on cables of different diameters.

[0009] A drive mechanism is provided on one side of the main body of the coating device housing. The drive mechanism meshes with the coating device and also meshes with the grinding device. The drive mechanism is used to drive the coating device and the grinding device to rotate. A limit component is provided on one side of the main body of the coating device housing. The limit component is used to fix and limit the grinding device. A winding device is provided on one side of the main body of the coating device housing. The winding device is used to wind up the processed cable conductor.

[0010] As a further aspect of the present invention: the main body of the coating device housing includes a coating device housing, a support plate is provided on one side of the coating device housing, a coating box is provided at the other end of the coating device housing, a connecting pipe is provided inside the coating device housing, one end of the connecting pipe is connected to the coating box, and the other end of the connecting pipe is engaged with the coating device, the coating box adjusts the coating through the connecting pipe, a plurality of support rods are fixedly connected to one side of the coating device housing, the coating device housing is rotatably connected to the grinding device through the plurality of support rods, a limit block is provided on the cylindrical surface of the support rod, the limit block is used to limit the grinding device, a drying pipe is provided on one side of the coating device housing, a heating resistance wire is provided on the inner surface of the drying pipe, the heating resistance wire is used to dry the cable conductor, and a limit component is provided on one side of the coating device housing.

[0011] As a further embodiment of the present invention: the limiting component includes a threaded rod and a lifting plate. The threaded rod is rotatably connected to the outer shell of the coating device, and the threaded rod passes through the lifting plate and is threadedly connected to the lifting plate. A handle is provided at the other end of the threaded rod. A limit rod is provided on one side of the lifting plate, which extends into the outer shell of the coating device and slides perpendicularly in contact with the outer shell of the coating device. Two limiting rods are provided on one side of the lifting plate. The two limiting rods are used to limit the grinding device. Both limiting rods are provided with ball bearings, and the two limiting rods roll in contact with the grinding device through the ball bearings.

[0012] As a further aspect of the present invention: the grinding device includes a grinding device housing, a plurality of rotating parts are rotatably connected to one side of the grinding device housing, the rotating parts cooperate with the extrusion assembly, a grinding block is provided at one end of each of the plurality of rotating parts, the grinding block is used to grind and polish the surface of the cable conductor, an annular block is provided on the other side of the grinding device housing, the annular block is in sliding contact with the grinding device housing, a connecting pipe is used to limit the annular block, a spring is provided on one side of the annular block, the spring is used to apply pressure to the extrusion assembly, and gear teeth are provided on the cylindrical surface of the grinding device housing, the grinding device housing meshes with the drive mechanism through the gear teeth.

[0013] As a further aspect of the present invention: the extrusion assembly includes an extrusion block, which is located between the annular block and the rotating component. One side of the extrusion block is in sliding contact with several rotating components. A baffle is provided on the cylindrical surface of the extrusion block, which is in contact with a spring. A slider is provided at the other end of the baffle, and the baffle is in sliding contact with the housing of the grinding device through the slider.

[0014] As a further aspect of the present invention: the driving mechanism includes a driving motor, which is fixedly connected to a support plate. A driving shaft is fixedly connected to one end of the driving motor. A second driving gear is fixedly connected to the cylindrical surface of the driving shaft. The second driving gear meshes with gear teeth. A first driving gear is fixedly connected to the cylindrical surface of the driving shaft. The driving shaft drives the coating device to rotate through the first driving gear.

[0015] As a further embodiment of the present invention: the coating device includes a rotating ring, which is located inside the outer shell of the coating device and rotatably connected to the outer shell. The cylindrical surface of the rotating ring has a plurality of feed holes. The rotating ring is fixedly connected to a plurality of connecting pipes, which correspond one-to-one with the plurality of feed holes and are connected to the feed holes. The cylindrical surface of the connecting pipe is provided with a movable block, which is slidably connected to the connecting pipe. The other end of the movable block is provided with a coating block, which is used to coat the surface of the cable conductor. A connecting rod is rotatably connected to one side of the movable block, and the other end of the connecting rod is slidably connected to the rotating ring. The connecting rod cooperates with an adjusting device. The inner surface of the rotating ring is provided with an internal thread, and the rotating ring is threadedly connected to the adjusting device through the internal thread.

[0016] As a further embodiment of the present invention: the adjusting device includes a hollow column, the cylindrical surface of which is provided with an external thread, the hollow column is threadedly connected to the internal thread through the external thread, one end of the hollow column is in contact with the connecting rod, and the cylindrical surface of the hollow column is provided with a plurality of handles.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The cable conductor passes through the main body of the grinding device and the coating device housing. The grinding device is driven to rotate by the drive mechanism. The grinding device drives the grinding block to rotate to grind and polish the surface of the cable conductor. At the same time, the spring presses the extrusion component, thereby pressurizing the rotating part, ensuring that the grinding block is in contact with the surface of the cable conductor. This allows for grinding of cable conductors of different diameters and avoids the phenomenon that the cable conductor cannot be ground as the thickness of the grinding block decreases with use.

[0018] 2. The drive mechanism of this device drives the grinding device to rotate, and at the same time drives the coating device to rotate. The coating device then drives the coating block to rotate and coat the cable surface. By rotating the adjustment device, the adjustment device squeezes the connecting rod to move the coating block, which can ensure that the coating block fits the cable conductors of different diameters. At the same time, as the coating device rotates, the feed hole connects to the connecting pipe, that is, the coating box automatically feeds the coating block through the connecting pipe, the feed hole and the connecting pipe.

[0019] 3. The main body of the coating device is equipped with a drying tube, and the inner surface of the drying tube is equipped with a heating resistance wire, which can dry the cable conductor after the coating has been sprayed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a cable conductor surface pretreatment device for cable manufacturing.

[0021] Figure 2 for Figure 1 Frontal sectional view.

[0022] Figure 3This is a schematic diagram of the grinding device in a cable conductor surface pretreatment equipment for cable manufacturing.

[0023] Figure 4 This is a schematic diagram of the extrusion assembly in a cable conductor surface pretreatment device for cable manufacturing.

[0024] Figure 5 This is a schematic diagram of the adjustment device in a cable conductor surface pretreatment equipment for cable manufacturing.

[0025] Figure 6 This is a cross-sectional view of a coating device in a cable conductor surface pretreatment equipment for cable manufacturing.

[0026] 1-Coating device housing, 2-Grinding device, 3-Limiting component, 4-Wrap-up device, 5-Drive mechanism, 6-Coating component, 7-Adjusting device, 8-Extrusion component, 101-Coating device housing, 102-Support plate, 103-Coating box, 104-Drying tube, 105-Heating resistance wire, 106-Connecting tube, 107-Limiting block, 108-Support rod, 201-Grinding device housing, 202-Spring, 203-Annular block, 204-Grinding block, 205-Rotating component, 206-Gear tooth, 301 -Handle, 302-Threaded rod, 303-Lifting plate, 304-Limiting rod, 305-Ball bearing, 501-Drive motor, 502-Drive shaft, 503-First drive gear, 504-Second drive gear, 601-Rotating ring, 602-Feed hole, 603-Driven gear, 604-Connecting pipe, 605-Connecting rod, 606-Moving block, 607-Paint block, 608-Internal thread, 701-Hollow column, 702-Handle, 703-External thread, 801-Extrusion block, 802-Baffle, 803-Slider. Detailed Implementation

[0027] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] Please see Figure 1-6In this embodiment of the invention, a cable conductor surface pretreatment device for cable manufacturing includes a coating device housing body 1. A grinding device 2 is rotatably connected to one side of the coating device housing body 1. The grinding device 2 is used to grind and polish the surface of the cable conductor. An extrusion component 8 is provided inside the grinding device 2. The extrusion component 8 cooperates with the grinding device 2. The extrusion component 8 is used to adjust the grinding device 2 to grind and polish cables of different diameters. It can grind cable conductors of different diameters and avoid the phenomenon that the cable conductor cannot be ground as the thickness of the grinding block 204 decreases with use.

[0030] The coating device housing 1 is equipped with a coating device 6 inside. The coating device 6 is used to spray coating on the surface of the cable conductor. The coating device 6 is equipped with an adjustment device 7 inside. The adjustment device 7 cooperates with the coating device 6. The coating device 6 is used to adjust the coating device 6 to spray coating on cables of different diameters. This can ensure that the coating block 607 fits the cable conductor of different diameters. At the same time, the coating block 607 can be automatically fed.

[0031] A drive mechanism 5 is provided on one side of the main body 1 of the coating device housing. The drive mechanism 5 meshes with the coating device 6 and also meshes with the grinding device 2. The drive mechanism 5 is used to drive the coating device 6 and the grinding device 2 to rotate. A limit component 3 is provided on one side of the main body 1 of the coating device housing. The limit component 3 is used to fix and limit the grinding device 2. A winding device 4 is provided on one side of the main body 1 of the coating device housing. The winding device 4 is used to wind up the processed cable conductor.

[0032] Please see Figure 1-4 The coating device housing 1 includes a coating device housing 101. A support plate 102 is provided on one side of the coating device housing 101, and a paint tank 103 is provided at the other end of the coating device housing 101. A connecting pipe 106 is provided inside the coating device housing 101. One end of the connecting pipe 106 is connected to the paint tank 103, and the other end of the connecting pipe 106 is connected to the coating device 6. The paint tank 103 adjusts the paint through the connecting pipe 106. Several support rods 108 are fixedly connected to one side of the coating device housing 101. The coating device housing 101 is connected to the grinding device 2 through the several support rods 108. The rotating connection is provided with a limit block 107 on the cylindrical surface of the support rod 108. The limit block 107 is used to limit the grinding device 2. A drying tube 104 is provided on one side of the coating device housing 101. A heating resistance wire 105 is provided on the inner surface of the drying tube 104. The heating resistance wire 105 is used to dry the cable conductor. A limit component 3 is provided on one side of the coating device housing 101. The cable conductor passes through the grinding device housing 201, the extrusion block 801, the coating device housing 101, the rotating ring 601, the hollow column 701, and the drying tube 104, and then the cable conductor is wound up by the winding device 4.

[0033] Please see Figure 1-4 The limiting component 3 includes a threaded rod 302 and a lifting plate 303. The threaded rod 302 is rotatably connected to the paint device housing 101. The threaded rod 302 passes through the lifting plate 303 and is threadedly connected to the lifting plate 303. A handle 301 is provided at the other end of the threaded rod 302. A 306 is provided on one side of the lifting plate 303. The 306 extends into the paint device housing 101 and slides perpendicularly in contact with the paint device housing 101. Two limiting rods 304 are provided on one side of the lifting plate 303. The two limiting rods 304 are used to limit the grinding device 2. Both limiting rods 304 are provided with balls 305. The two limiting rods 304 roll in contact with the grinding device 2 through the balls 305.

[0034] Please see Figure 1-4 The polishing device 2 includes a polishing device housing 201. A plurality of rotating parts 205 are rotatably connected to one side of the polishing device housing 201. The rotating parts 205 cooperate with the extrusion assembly 8. Each of the rotating parts 205 has a polishing block 204 at one end. The polishing block 204 is used to polish the surface of the cable conductor. An annular block 203 is provided on the other side of the polishing device housing 201. The annular block 203 slides in contact with the polishing device housing 201. A connecting pipe 106 is used to limit the movement of the annular block 203. One side of the annular block 203 is provided with… There is a spring 202, which is used to apply pressure to the extrusion assembly 8. The cylindrical surface of the grinding device housing 201 is provided with gear teeth 206. The grinding device housing 201 meshes with the drive mechanism 5 through the gear teeth 206. The drive motor 501 starts and controls the drive shaft 502 to rotate. The drive motor 501 meshes with the gear teeth 206 through the second drive gear 504, thereby driving the spring 202 to rotate. The spring 202 then drives the grinding block 204 to rotate through the rotating part 205 to grind and polish the surface of the cable conductor.

[0035] Please see Figure 1-4The extrusion assembly 8 includes an extrusion block 801, which is located between the annular block 203 and the rotating member 205. One side of the extrusion block 801 is in sliding contact with several rotating members 205. A baffle 802 is provided on the cylindrical surface of the extrusion block 801, which is in contact with a spring 202. A slider 803 is provided at the other end of the baffle 802, which is in sliding contact with the grinding device housing 201 through the slider 803. The threaded rod 302 is rotated by the handle 301, which drives the lifting plate 303 to move vertically, that is, the lifting plate 303 drives two limit positions. As rod 304 descends, the two limiting rods 304 limit the grinding device housing 201, thereby ensuring that the support rod 108 supports the grinding device housing 201 and that the limiting block 107 limits the annular block 203. The annular block 203 then presses the baffle 802 through the spring 202, which in turn drives the pressing block 801 to move. The pressing block 801 then presses one end of the rotating member 205, causing the rotating member 205 to perform lever motion. The other end of the rotating member 205 drives the grinding block 204 to move, ensuring that the grinding block 204 is in contact with the surface of the cable conductor.

[0036] Please see Figure 1-4 The driving mechanism 5 includes a driving motor 501, which is fixedly connected to the support plate 102. One end of the driving motor 501 is fixedly connected to a driving shaft 502. A second driving gear 504 is fixedly connected to the cylindrical surface of the driving shaft 502. The second driving gear 504 meshes with gear teeth 206. A first driving gear 503 is fixedly connected to the cylindrical surface of the driving shaft 502. The driving shaft 502 drives the coating device 6 to rotate through the first driving gear 503.

[0037] Please see Figure 1-4The coating device 6 includes a rotating ring 601, which is located within and rotatably connected to the coating device housing 101. The rotating ring 601 has several feed holes 602 on its cylindrical surface. Several connecting pipes 604 are fixedly connected to the rotating ring 601, each corresponding to one of the feed holes 602 and communicating with them. A movable block 606 is provided on the cylindrical surface of each connecting pipe 604, and the movable block 606 is slidably connected to the connecting pipe 604. A coating block 607 is provided at the other end of the movable block 606, used for coating the surface of the cable conductor. A connecting rod 605 is rotatably connected to one side of 606, and the other end of the connecting rod 605 is slidably connected to the rotating ring 601. The connecting rod 605 cooperates with the adjusting device 7. The inner surface of the rotating ring 601 is provided with an internal thread 608. The rotating ring 601 is threadedly connected to the adjusting device 7 through the internal thread 608. At the same time, the second drive gear 504 drives the grinding device housing 201 to rotate through the gear teeth 206. Meanwhile, the drive shaft 502 drives the driven gear 603 to rotate through the first drive gear 503. The driven gear 603 then drives the rotating ring 601 to rotate. The rotating ring 601 drives the coating block 607 to rotate through the connecting pipe 604 to coat the cable surface.

[0038] Please see Figure 1-4 The adjusting device 7 includes a hollow column 701. The cylindrical surface of the hollow column 701 has an external thread 703. The hollow column 701 is threadedly connected to the internal thread 608 through the external thread 703. One end of the hollow column 701 is in contact with the connecting rod 605. The cylindrical surface of the hollow column 701 is provided with several handles 702. The handles 702 drive the hollow column 701 to rotate, which in turn drives the external thread 703 to rotate. Since the external thread 703 is threadedly connected to the moving block 606, the hollow column 701 moves horizontally. The hollow column 701 presses against the connecting rod 605, thereby causing the coating block 607 to move along the connecting pipe 604. This ensures that the coating block 607 fits with cable conductors of different diameters.

[0039] The working principle of this invention is as follows: When the device is in use, the cable conductor passes through the grinding device housing 201, the extrusion block 801, the coating device housing 101, the rotating ring 601, the hollow column 701, and the drying tube 104. Then, the cable conductor is wound up by the winding device 4. The drive motor 501 is started, and the drive motor 501 controls the drive shaft 502 to rotate. The drive motor 501 meshes with the gear teeth 206 through the second drive gear 504, thereby driving the spring 202 to rotate. The spring 202 then drives the grinding block 204 to rotate through the rotating part 205 to grind and polish the surface of the cable conductor. The threaded rod 302 is rotated by the handle 301. This causes the lifting plate 303 to move vertically, which in turn causes the two limiting rods 304 to descend. The two limiting rods 304 limit the grinding device housing 201, thereby ensuring that the support rod 108 supports the grinding device housing 201 and that the limiting block 107 limits the annular block 203. The annular block 203 then presses the baffle 802 through the spring 202. The baffle 802 causes the pressing block 801 to move, and the pressing block 801 presses one end of the rotating part 205, causing the rotating part 205 to perform lever motion. The other end of the rotating part 205 causes the grinding block 204 to move, ensuring that the grinding block 204 is in contact with the surface of the cable conductor, thus enabling grinding. To polish cable conductors of different diameters and prevent the polishing block 204 from becoming too thin and unable to polish the cable conductors, the second drive gear 504 drives the polishing device housing 201 to rotate via the gear teeth 206. Simultaneously, the drive shaft 502 drives the driven gear 603 to rotate via the first drive gear 503. The driven gear 603 then drives the rotating ring 601 to rotate. The rotating ring 601, through the connecting pipe 604, drives the coating block 607 to rotate, applying coating to the cable surface. The handle 702 drives the hollow column 701 to rotate, which in turn drives the external thread 703 to rotate. Because the external thread 703 and the moving block 606... The threaded connection allows the hollow column 701 to move horizontally, pressing the connecting rod 605 to move the paint block 607 along the connecting pipe 604. This ensures that the paint block 607 fits the cable conductors of different diameters. Simultaneously, as the rotating ring 601 rotates, the feed hole 602 connects the connecting pipe 106 and the connecting pipe 604. The paint box 103 automatically feeds the paint block 607 through the connecting pipe 106, the feed hole 602, and the connecting pipe 604. A drying pipe 104 is provided on one side of the paint device housing 101. The inner surface of the drying pipe 104 is provided with a heating resistance wire 105, which can dry the cable conductor after the paint has been sprayed.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A cable conductor surface pretreatment device for cable manufacturing, comprising a coating device housing, characterized in that, A grinding device is rotatably connected to one side of the main body of the coating device. The grinding device is used to grind and polish the surface of the cable conductor. An extrusion component is set inside the grinding device. The extrusion component cooperates with the grinding device and is used to adjust the grinding device to grind and polish cables of different diameters. The coating device is housed inside the outer shell of the coating device. The coating device is used to spray coating on the surface of the cable conductor. The coating device is also equipped with an adjustment device that works in conjunction with the coating device. The coating device is used to adjust the coating device to spray coating on cables of different diameters. A drive mechanism is provided on one side of the main body of the coating device housing. The drive mechanism meshes with the coating device and also meshes with the grinding device. The drive mechanism is used to drive the coating device and the grinding device to rotate. A limit component is provided on one side of the main body of the coating device housing. The limit component is used to fix and limit the grinding device. A winding device is provided on one side of the main body of the coating device housing. The winding device is used to wind up the processed cable conductor.

2. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 1, characterized in that, The coating device housing includes a coating device housing, a support plate on one side of the coating device housing, and a coating tank at the other end of the coating device housing. A connecting pipe is installed inside the coating device housing, with one end connected to the coating tank and the other end engaging with the coating device. The coating tank adjusts the coating through the connecting pipe. Several support rods are fixedly connected to one side of the coating device housing, and the coating device housing is rotatably connected to a grinding device via these support rods. Limit blocks are provided on the cylindrical surfaces of the support rods to limit the movement of the grinding device. A drying pipe is provided on one side of the coating device housing, and a heating resistance wire is provided on the inner surface of the drying pipe to dry the cable conductor. A limit assembly is also provided on one side of the coating device housing.

3. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 2, characterized in that, The limiting assembly includes a threaded rod and a lifting plate. The threaded rod is rotatably connected to the outer shell of the coating device and passes through the lifting plate, where it is threadedly connected. A handle is provided at the other end of the threaded rod. A lever is provided on one side of the lifting plate, extending into the outer shell of the coating device and sliding perpendicularly in contact with it. Two limiting rods are provided on one side of the lifting plate, which are used to limit the grinding device. Both limiting rods are equipped with ball bearings, and the two limiting rods make rolling contact with the grinding device through the ball bearings.

4. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 3, characterized in that, The polishing device includes a polishing device housing. Several rotating parts are rotatably connected to one side of the polishing device housing. The rotating parts cooperate with the extrusion assembly. Each of the rotating parts has a polishing block at one end. The polishing block is used to polish the surface of the cable conductor. An annular block is provided on the other side of the polishing device housing. The annular block is in sliding contact with the polishing device housing. A connecting pipe is used to limit the position of the annular block. A spring is provided on one side of the annular block. The spring is used to apply pressure to the extrusion assembly. The cylindrical surface of the polishing device housing is provided with gear teeth. The polishing device housing meshes with the drive mechanism through the gear teeth.

5. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 4, characterized in that, The extrusion assembly includes an extrusion block located between the annular block and the rotating parts. One side of the extrusion block is in sliding contact with several rotating parts. A baffle is provided on the cylindrical surface of the extrusion block, and the baffle is in contact with a spring. A slider is provided at the other end of the baffle, and the baffle is in sliding contact with the housing of the grinding device through the slider.

6. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 4, characterized in that, The driving mechanism includes a drive motor, which is fixedly connected to a support plate. A drive shaft is fixedly connected to one end of the drive motor. A second drive gear is fixedly connected to the cylindrical surface of the drive shaft. The second drive gear meshes with gear teeth. A first drive gear is fixedly connected to the cylindrical surface of the drive shaft. The drive shaft drives the coating device to rotate through the first drive gear.

7. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 6, characterized in that, The coating device includes a rotating ring located within and rotatably connected to the outer casing of the coating device. The rotating ring has several feed holes on its cylindrical surface. Several connecting pipes are fixedly connected to the rotating ring, each corresponding to one of the feed holes and communicating with them. A movable block is provided on the cylindrical surface of each connecting pipe, and the movable block is slidably connected to the connecting pipe. A coating block is provided at the other end of the movable block, used for coating the surface of the cable conductor. A connecting rod is rotatably connected to one side of the movable block, and the other end of the connecting rod is slidably connected to the rotating ring. The connecting rod cooperates with an adjusting device. An internal thread is provided on the inner surface of the rotating ring, and the rotating ring is threadedly connected to the adjusting device through the internal thread.

8. The cable conductor surface pretreatment equipment for cable manufacturing according to claim 7, characterized in that, The adjusting device includes a hollow column with external threads on its cylindrical surface. The hollow column is threadedly connected to an internal thread through the external threads. One end of the hollow column is in contact with a connecting rod, and several handles are provided on the cylindrical surface of the hollow column.