A talc smearing device for cable production

Abstract

The application discloses a talcum powder smearing device for cable production and relates to the technical field of cable production. The talcum powder smearing device comprises a smearing assembly and a pressing assembly, wherein the smearing assembly is used for smearing talcum powder on the cable. The smearing assembly is provided with a plurality of powdering rollers, which roll on the surface of the cable. The talcum powder is smeared on the cable by the powdering rollers. The position of the powdering rollers can be adjusted to adapt to cables with different diameters. The pressing assembly is provided with a plurality of pressing rollers, which slightly press the talcum powder on the cable. The pressing assembly can increase the firmness of the talcum powder and avoid the deformation of the cable. The talcum powder smearing device further comprises a powder cleaning assembly, which is used for cleaning the cable coming out of the smearing assembly and the floating powder on the surface of the cable, thereby avoiding the caking of the talcum powder during pressing. The talcum powder smearing device can improve the efficiency of smearing talcum powder on the cable and avoid the caking of the talcum powder on the cable.

Description

Technical Field

[0001] This invention relates to the field of cable production technology, and in particular to a talc powder coating device for cable production. Background Technology

[0002] In the cable manufacturing process, to reduce the coefficient of friction between the insulation or sheath layers, prevent adhesion, and facilitate smooth subsequent processes, a layer of talc powder is usually coated on the surface of the cable core or insulated core. As a solid lubricant, talc powder can effectively reduce the frictional resistance of the cable during processing and use, while also providing isolation and moisture protection.

[0003] Currently, the talc coating methods commonly used on cable production lines are relatively simple. The common practice is to pass the cable core through a powder box or trough containing talc powder, relying on the cable's own movement to apply the talc powder to the surface, or to apply it with a simple brush. These traditional coating methods have significant shortcomings. First, talc powder cannot penetrate deeply to fill the gaps in the cable strands or irregular surfaces; it only adheres to the outer layer. This leads to the surface powder layer easily detaching during subsequent processes or when the cable is bent, significantly reducing the insulating effect. Second, relying solely on the contact between the cable and the powder results in poor control over the amount of powder applied, easily leading to uneven phenomena such as areas with no powder or excessively thick powder layers.

[0004] Furthermore, existing equipment often employs a single-coating process, lacking reinforcement treatment for the already adhered powder layer. After coating, if the cable passes through subsequent guide rollers, traction, or take-up devices, a large amount of surface powder often detaches due to mechanical contact. This not only wastes talc powder and pollutes the production environment, but the detached powder may also embed itself inside the cable or mix with raw materials from other processes, affecting product quality. Some improved solutions employ two coating processes, but the lack of effective powder removal or homogenization treatment between the two coatings causes the surface powder on the cable after the first coating to be compacted and form local clumps during the second pressing. These clumps not only affect adhesion during extrusion or cabling but may also cause indentations or protrusions on the cable surface, compromising appearance and performance consistency. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention discloses a talc powder coating device for cable production, which solves the problems of uneven coating and clumping of talc powder on cables.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a talc powder coating device for cable production, comprising a coating component and a powder cleaning component. The coating component includes a coating box, a rotating frame is rotatably arranged inside the coating box, the rotating frame includes multiple sets of mounting frames, and a powder brush roller is rotatably arranged on the mounting frame. The powder brush roller is in contact with the cable, and the powder brush roller applies talc powder to the cable. It also includes a pressing assembly, which includes a pressing box, a rotating frame three is rotatably arranged inside the pressing box, multiple pressing frames are arranged on the rotating frame three, and pressing rollers are rotatably arranged on the pressing frames. The pressing rollers are in contact with the cable and press the talcum powder onto the cable. A powder cleaning component is provided between the coating component and the pressing component. The powder cleaning component includes multiple sets of powder brushing rollers, which clean the floating powder on the cable.

[0007] Furthermore, the rotating frame is provided with multiple sets of mounting blocks, and an adjusting frame is slidably disposed within the mounting blocks. The mounting frame and the adjusting frame are slidably connected, and a spring is disposed between the mounting frame and the adjusting frame.

[0008] Furthermore, a lead screw is rotatably installed inside the mounting block, and the lead screw is connected to the first adjusting frame by a thread. A second adjusting frame is slidably installed on the side of the coating box, and a second motor is installed on the second adjusting frame. The output shaft of the second motor is inserted into the lead screw to drive the lead screw to rotate.

[0009] Furthermore, a spring seven is provided between the pressing frame and the rotating frame three, and a protrusion one is provided at the end of the pressing frame away from the cable. Multiple sets of limiting plates one and two are provided on the pressing box. Multiple sets of protrusion three are provided on the limiting plate one, and multiple sets of protrusion two are provided on the limiting plate two. The protrusion two and protrusion three squeeze the multiple sets of protrusion one.

[0010] Furthermore, the first limiting plate, the second limiting plate, and the pressing box are detachably connected, and the first limiting plate is fixed to the pressing box by bolts.

[0011] Furthermore, both the coating box and the pressing box are equipped with a guiding mechanism and a wiping mechanism. The guiding mechanism includes a mounting ring, on which two sets of support frames are slidably mounted. Rollers are rotatably mounted on the support frames, through which the cable passes. A spring is provided between the support frames and the mounting ring.

[0012] Furthermore, the wiping mechanism includes a second mounting ring, on which multiple sets of wiping plates are slidably disposed, and a second spring is disposed between the second mounting ring and the wiping plates.

[0013] Furthermore, the powder cleaning assembly includes a cleaning bucket, a rotating frame 2 is rotatably arranged inside the cleaning bucket, multiple sets of mounting frames 2 are slidably arranged on the rotating frame 2, a bonding frame is slidably arranged on the mounting frame 2, a spring 4 is arranged between the mounting frame 2 and the bonding frame, and the powder brushing roller is rotatably mounted on the bonding frame.

[0014] Furthermore, a spring six is ​​provided between the mounting bracket two and the push ring, a push ring is slidably provided inside the cleaning bucket, a spring five is provided between the push ring and the cleaning bucket, and the push ring is in contact with multiple sets of mounting bracket two.

[0015] Furthermore, the powder roller is a silicone roller, the powder brushing roller has anti-static nylon bristles, and the outer surface of the pressing roller is provided with rubber.

[0016] The beneficial effects of this invention compared with the prior art are as follows: This invention applies talc powder to the cable twice through a coating component and a pressing component. The coating component coats a layer of talc powder onto the cable using a brush roller and fills the gaps in the cable with talc powder. After completion, the coating component enters the pressing component for further coating. The pressing component presses the talc powder onto the cable using a pressing roller, improving the adhesion of the talc powder to the cable and preventing it from falling off, thus improving the talc powder application effect on the cable. At the same time, the powder cleaning component in this invention brushes off the loose powder on the surface of the coating component after the cable comes out of the coating component, preventing the loose powder on the cable from being pressed into the pressing component and causing the talc powder to clump. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a left view of the coating component structure of the present invention; Figure 4 for Figure 3 Cross-sectional view of the structure along the AA direction; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a partial structural diagram of the coating component of the present invention; Figure 7 This is a left view of the structure of the powder cleaning component of the present invention; Figure 8 for Figure 7 Cross-sectional view of the structure in the CC direction; Figure 9 This is a partial structural diagram of the powder cleaning component of the present invention; Figure 10 This is a right view of the pressing component structure of the present invention; Figure 11 for Figure 10 Cross-sectional view of the structure in the DD direction; Figure 12 This is a partial front view of the pressing component of the present invention; Figure 13 This is a partial structural diagram of the pressing component of the present invention; Attached reference numerals: 1-Coating assembly; 2-Powder cleaning assembly; 3-Pressing assembly; 101-Coating box; 102-Inlet 1; 103-Electric cylinder 1; 104-Electric cylinder 2; 105-Motor 1; 106-Recovery box 1; 107-Recovery port 1; 108-Cable; 109-Mounting ring 1; 110-Support frame; 111-Spring 1; 112-Roller; 113-Sealing plate; 114-Mounting ring II; 115-Wiping plate; 116-Spring II; 117-Rotating frame I; 118-Gear I; 119-Adjusting hole; 120-Discharge hole I; 121-Mounting block; 122-Adjusting frame I; 123-Screw rod; 124-Mounting frame I; 125-Spring III; 126-Painting roller; 127-Adjusting frame II; 128-Motor II; 201-Cleaning bucket; 202-Gear III; 203-Electric... Machine 3; 204-Gear 4; 205-Motor 4; 206-Cam; 207-Push Ring; 208-Mounting Frame 2; 209-Packing Frame; 210-Powder Brushing Roller; 211-Spring 4; 212-Spring 5; 213-Spring 6; 214-Recycling Box 2; 215-Recycling Port 2; 216-Protruding Post; 217-Rotating Frame 2; 301-Pressing Box; 302-Feed Inlet 2; 303-Electric... Cylinder 3; 304-Motor 5; 305-Recycling box 3; 306-Recycling port 3; 307-Rotating frame 3; 308-Gear 5; 309-Gear 6; 310-Pressing frame; 311-Spring 7; 312-Pressing roller; 313-Protrusion block 1; 314-Limiting plate 1; 315-Limiting plate 2; 316-Protrusion block 2; 317-Protrusion block 3; 318-Bolt; 319-Discharge hole 2. Detailed Implementation

[0018] refer to Figures 1 to 13 The illustrated talcum powder coating device for cable production includes a coating component 1 and a pressing component 3 for sequentially coating talcum powder onto a cable 108. The coating component 1 coats the cable 108 with talcum powder using multiple sets of brush rollers 126, and the position of the brush rollers 126 can be adjusted to accommodate cables 108 of various specifications. The pressing component 3 uses multiple sets of pressing rollers 312 to lightly press the talcum powder onto the cable 108, ensuring that the talcum powder adheres firmly to the surface of the cable 108 while avoiding deformation caused by pressing the cable 108. Furthermore, by replacing the limiting plate... 315. Limiting plate 314 changes the pressing stroke of pressing roller 312, thereby controlling the pressing force and adapting to different specifications of cable 108. Coating component 1 and pressing component 3 improve the coating effect of talcum powder on cable 108 and prevent talcum powder from clumping on cable 108. The present invention also includes a powder cleaning component 2. When cable 108 is coated from inside coating component 1 and enters between pressing component 3, powder cleaning component 2 brushes off any loose talcum powder on cable 108 to prevent clumping and protrusion when pressing component 3 presses cable 108.

[0019] refer to Figures 1 to 6 As shown, the coating assembly 1 includes a coating box 101. The upper end of the coating box 101 is provided with a feed inlet 102. Talc powder is placed in the feed inlet 102. An electric cylinder 103 is provided on the side of the coating box 101. The movable end of the electric cylinder 103 is connected to a sealing plate 113. The sealing plate 113 closes the feed inlet 102. When material needs to be discharged, the electric cylinder 103 is activated, and the electric cylinder 103 drives the sealing plate 113 to move. The sealing plate 113 releases the closure of the feed inlet 102, and the talc powder in the feed inlet 102 falls into the coating box 101.

[0020] A rotating frame 117 is rotatably mounted inside the coating box 101. A gear 118 is mounted on the rotating frame 117. A motor 105 is mounted on the side of the coating box 101. A gear 2 is mounted on the output shaft of the motor 105, meshing with gear 118. When the motor 105 starts, it drives gear 2 to rotate, which in turn drives gear 118 and the rotating frame 117 to rotate. Multiple mounting blocks 121 are mounted on the rotating frame 117. An adjusting frame 122 is slidably mounted inside each mounting block 121. A feed inlet 124 is slidably mounted on the adjusting frame 122. A spring 125 is installed between the mounting frame 124 and the adjusting frame 122. A brush roller 126 is rotatably mounted on the 4th mounting block. The brush roller 126 is a silicone roller and is in contact with the cable 108. A lead screw 123 is rotatably mounted inside the mounting block 121. The lead screw 123 is connected to the adjusting frame 122 by a thread. When the lead screw 123 rotates, it drives the adjusting frame 122 to slide inside the mounting block 121. The adjusting frame 122 drives the mounting frame 124 to move, changing the position of the brush roller 126 to adapt to different specifications of cables 108. The spring 3 125 ensures that the brush roller 126 is always in contact with the cable 108. When the rotating frame 117 rotates, it drives multiple sets of brush rollers 126 to rotate, and the brush rollers 126 coat the cable 108 with talcum powder.

[0021] A second electric cylinder 104 is provided on the side of the coating box 101. An adjustment frame 127 is provided at the movable end of the second electric cylinder 104. The adjustment frame 127 is slidably connected to the coating box 101. A second motor 128 is provided inside the adjustment frame 127. When the second electric cylinder 104 is started, it drives the adjustment frame 127 to move. The adjustment frame 127 drives the second motor 128 to be inserted into the lead screw 123. When the second motor 128 is started, the second motor 128 drives the lead screw 123 to rotate. The lead screw 123 adjusts the position of the first adjustment frame 122.

[0022] The rotating frame 117 is equipped with multiple sets of feeding holes 120 and adjustment holes 119. Talc powder falls onto the cable 108 through the feeding holes 120, and the motor 128 adjusts the lead screw 123 through the adjustment holes 119.

[0023] The bottom of the coating box 101 is provided with a recycling box 106, and the side of the recycling box 106 is provided with a recycling port 107. The recycling box 106 is connected to the negative pressure dust removal system through the recycling port 107.

[0024] A guiding mechanism is provided on one side of the coating box 101, and a wiping mechanism is provided on the other side of the coating box 101. When the cable 108 is coated for the first time, it first passes through the guiding mechanism, and then passes through the rotating frame 117 and is removed by the wiping mechanism.

[0025] The guiding mechanism includes a mounting ring 109 installed on the side of the coating box 101. Two sets of support frames 110 are slidably mounted on the mounting ring 109. A spring 111 is provided between the support frame 110 and the mounting ring 109. The spring 111 drives the two sets of support frames 110 to move closer to each other. Rollers 112 are rotatably mounted on the support frame 110. The two sets of rollers 112 guide the cable 108.

[0026] The wiping mechanism includes a mounting ring 114 installed on the other side of the coating box 101. Multiple sets of wiping plates 115 are slidably arranged on the mounting ring 114. A spring 116 is arranged between the wiping plate 115 and the mounting ring 114. The wiping plate 115 is always in contact with the cable 108. When the cable 108 passes through the multiple sets of wiping plates 115, the wiping plate 115 blocks the talcum powder accumulated on the cable 108.

[0027] refer to Figures 7 to 9 As shown, the powder cleaning assembly 2 includes a cleaning bucket 201. One end of the cleaning bucket 201 is connected to the coating box 101, and the other end of the cleaning bucket 201 is connected to the pressing box 301. A rotating frame 217 is rotatably arranged inside the cleaning bucket 201. A gear 3 202 is coaxially arranged on the rotating frame 217. A motor 3 203 is arranged on the side of the cleaning bucket 201. A gear 4 204 is arranged on the output shaft of the motor 3 203. The gear 4 204 meshes with the gear 3 202. When the motor 3 203 starts, it drives the gear 4 204 to rotate. The gear 4 204 drives the gear 3 202 and the rotating frame 217 to rotate, thereby adjusting the position of the rotating frame 217.

[0028] Multiple sets of mounting frames 208 are slidably arranged inside the rotating frame 217. A bonding frame 209 is slidably arranged on the mounting frame 208. A powder brushing roller 210 is rotatably arranged on the bonding frame 209. The brushing roller 210 has anti-static nylon bristles. A spring 4 211 is arranged between the bonding frame 209 and the mounting frame 208. The spring 4 211 drives the powder brushing roller 210 to always be in contact with the cable 108. The powder brushing roller 210 brushes off the floating powder on the cable 108. When the rotating frame 217 rotates, it drives the multiple sets of bonding frames 209 to rotate. The bonding frames 209 drive the multiple sets of powder brushing rollers 210 to rotate around the axis of the cable 108.

[0029] A spring 213 is installed between mounting bracket 208 and rotating bracket 217. A push ring 207 is slidably installed inside rotating bracket 217. A spring 212 is installed between push ring 207 and rotating bracket 217. Push ring 207 is in contact with multiple sets of mounting brackets 208. A motor 205 is also installed inside cleaning bucket 201. A cam 206 is installed on the output shaft of motor 205. A protruding post 216 is installed on push ring 207. Cam 206 is in contact with protruding post 216. When motor 205 starts, it drives cam 206 to rotate. Cam 206 pushes protruding post 216 and push ring 207 to move. Push ring 207 slides back and forth due to the deformation restoring force of spring 212. Push ring 207 pushes mounting bracket 208 and powder brushing roller 210 to slide back and forth, improving the brushing effect of powder brushing roller 210 on cable 108.

[0030] The cleaning bucket 201 is equipped with a recycling bin 214 at the lower end, and a recycling port 215 is provided on the recycling bin 214. The recycling bin 214 is connected to the negative pressure dust removal system through the recycling port 215.

[0031] refer to Figures 10 to 13 As shown, the pressing assembly 3 includes a pressing box 301, a second feed inlet 302 is provided on the pressing box 301, a sealing plate 113 is slidably arranged inside the second feed inlet 302, and an electric cylinder 303 is provided on the side of the pressing box 301. The movable end of the electric cylinder 303 is connected to the sealing plate 113. The sealing plate 113 closes the second feed inlet 302. When the electric cylinder 303 is activated, the electric cylinder 303 drives the sealing plate 113 to move, and the sealing plate 113 releases the talcum powder in the second feed inlet 302 and falls into the pressing box 301.

[0032] Inside the pressing box 301, a rotating frame 307 is rotatably mounted. A gear 5 308 is coaxially mounted on the rotating frame 307. A motor 5 304 is mounted on the side of the pressing box 301. A gear 6 309 is mounted on the output shaft of the motor 5 304. Gear 6 309 meshes with gear 5 308. When the motor 5 304 is started, it drives gear 6 309 to rotate. Gear 6 309 drives gear 5 308 and rotating frame 307 to rotate. The rotating frame 307 rotates around the axis of cable 108.

[0033] Multiple sets of pressing frames 310 are slidably arranged on the rotating frame 307. One end of the pressing frame 310 is rotatably equipped with a pressing roller 312, which is in contact with the cable 108. The other end of the pressing frame 310 is equipped with a protrusion 313. A spring 311 is arranged between the pressing frame 310 and the rotating frame 307.

[0034] The rotating frame 307 is equipped with multiple sets of discharge holes 319. The talc powder in the feed inlet 302 falls onto the cable 108 through the discharge holes 319.

[0035] Multiple sets of limiting plates 314 and 315 are detachably installed inside the pressing box 301. Limiting plate 314 is fixed to the pressing box 301 by bolts 318, blocking both ends of limiting plate 315. Multiple sets of protrusions 317 are provided on limiting plate 314, and multiple sets of protrusions 316 are provided on limiting plate 315. Limiting plate 315 and protrusions 316 press against protrusion 313. When the rotating frame 307 drives the pressing... When the pressure frame 310 rotates, protrusion 1 313 contacts protrusion 2 316 and protrusion 3 317. At this time, protrusion 2 316 and protrusion 3 317 push protrusion 1 313 and the pressure frame 310 to move. At this time, spring 7 311 is compressed. The pressure frame 310 drives the pressing roller 312 to press the cable 108. After protrusion 1 313 releases contact with protrusion 2 316 and protrusion 3 317, the pressure frame 310 resets due to the deformation restoring force of spring 7 311.

[0036] When pressing cables 108 of different specifications, different limit plates 1 314 and 2 315 are replaced. Limit plates 1 314 and 2 315 are provided with protrusions 317 and 2 316 of different heights, which changes the pressing stroke of the pressing frame 310 to adapt to various cables 108 of different specifications.

[0037] The pressing box 301 is also equipped with a guiding mechanism and a wiping mechanism. After the cable 108 passes through the guiding mechanism, it enters the pressing box 301 and is removed through the wiping mechanism after pressing is completed.

[0038] A recycling box 305 is provided at the lower end of the pressing box 301. A recycling port 306 is provided on the recycling box 305. The recycling box 305 is connected to the negative pressure dust removal system through the recycling port 306.

Claims

1. A talc powder coating device for cable production, characterized in that: The system includes a coating component (1) and a powder cleaning component (2). The coating component (1) includes a coating box (101). A rotating frame (117) is rotatably arranged inside the coating box (101). The rotating frame (117) includes multiple sets of mounting frames (124). A brush roller (126) is rotatably arranged on the mounting frame (124). The brush roller (126) is in contact with the cable (108). The brush roller (126) applies talcum powder to the cable (108). It also includes a pressing assembly (3), which includes a pressing box (301), a rotating frame three (307) is rotatably arranged inside the pressing box (301), a plurality of pressing frames (310) are arranged on the rotating frame three (307), and a pressing roller (312) is rotatably arranged on the pressing frame (310). The pressing roller (312) is in contact with the cable (108), and the pressing roller (312) presses the talcum powder onto the cable (108). A powder cleaning component (2) is provided between the coating component (1) and the pressing component (3). The powder cleaning component (2) includes multiple powder brushing rollers (210), which clean the floating powder on the cable (108).

2. The talc powder coating device for cable production according to claim 1, characterized in that: The rotating frame (117) is provided with multiple sets of mounting blocks (121), and an adjusting frame (122) is slidably arranged inside the mounting block (121). The mounting frame (124) is slidably connected to the adjusting frame (122), and a spring (125) is provided between the mounting frame (124) and the adjusting frame (122).

3. The talc powder coating device for cable production according to claim 2, characterized in that: A lead screw (123) is rotatably installed inside the mounting block (121). The lead screw (123) is connected to the first adjustment frame (122) by a thread. The second adjustment frame (127) is slidably installed on the side of the coating box (101). The second motor (128) is installed on the second adjustment frame (127). The output shaft of the second motor (128) is inserted into the lead screw (123) to drive the lead screw (123) to rotate.

4. The talc powder coating device for cable production according to claim 1, characterized in that: A spring seven (311) is provided between the pressing frame (310) and the rotating frame three (307). A protrusion one (313) is provided at the end of the pressing frame (310) away from the cable (108). Multiple sets of limiting plates one (314) and limiting plates two (315) are provided on the pressing box (301). Multiple sets of protrusion three (317) are provided on the limiting plate one (314), and multiple sets of protrusion two (316) are provided on the limiting plate two (315). Protrusion two (316) and protrusion three (317) press against multiple sets of protrusion one (313).

5. The talc powder coating device for cable production according to claim 4, characterized in that: The first limiting plate (314), the second limiting plate (315) and the pressing box (301) are detachably connected. The first limiting plate (314) is fixed to the pressing box (301) by bolts (318).

6. The talc powder coating device for cable production according to claim 1, characterized in that: Both the coating box (101) and the pressing box (301) are provided with a guiding mechanism and a wiping mechanism. The guiding mechanism includes a mounting ring (109), on which two sets of support frames (110) are slidably arranged. Rollers (112) are rotatably arranged on the support frames (110). The cable (108) passes through the rollers (112). A spring (111) is arranged between the support frame (110) and the mounting ring (109).

7. The talc powder coating device for cable production according to claim 6, characterized in that: The wiping mechanism includes a second mounting ring (114), on which multiple sets of wiping plates (115) are slidably arranged, and a second spring (116) is arranged between the second mounting ring (114) and the wiping plates (115).

8. The talc powder coating device for cable production according to claim 1, characterized in that: The powder cleaning component (2) includes a cleaning bucket (201), a rotating frame (217) is rotatably arranged inside the cleaning bucket (201), multiple sets of mounting frames (208) are slidably arranged on the rotating frame (217), a bonding frame (209) is slidably arranged on the mounting frame (208), a spring (211) is arranged between the mounting frame (208) and the bonding frame (209), and the powder brushing roller (210) is rotatably mounted on the bonding frame (209).

9. A talc powder coating device for cable production according to claim 8, characterized in that: A spring six (213) is provided between the mounting bracket two (208) and the push ring (207). The push ring (207) is slidably provided inside the cleaning bucket (201). A spring five (212) is provided between the push ring (207) and the cleaning bucket (201). The push ring (207) is in contact with multiple sets of mounting bracket two (208).

10. The talc powder coating device for cable production according to claim 1, characterized in that: The powder roller (126) is a silicone roller, the powder brush roller (210) is made of antistatic nylon bristles, and the outer surface of the pressing roller (312) is provided with rubber.

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