A cable coating device and coating process thereof

Abstract

The present application relates to the field of cable technology, and specifically discloses a cable coating device and a coating process thereof, which includes a chassis and a cleaning mechanism, a first drying box, a primer coating mechanism, a second drying box, a paint coating mechanism and a third drying box sequentially installed on the chassis; the cleaning mechanism cleans the cable, the first drying box dries the moisture on the cable surface, the primer coating mechanism coats the primer on the cable surface, and the second drying box dries the primer on the cable surface; the paint coating mechanism includes a paint bin, a bottom transmission roller and a top transmission roller; the paint bin is installed on the chassis, and the bottom transmission roller is rotatably connected to the bottom inner wall of the paint bin; two top transmission rollers are provided, and the two top transmission rollers are rotatably connected to the top inner wall of the paint bin; the cable passes through the paint bin and sequentially passes over the top of the top transmission roller, the bottom of the bottom transmission roller and the top of another top transmission roller, and the cable is immersed in the paint of the paint bin; the third drying box dries the paint. The present application has the effect of reducing the production cost of cable coating.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cable coating device and a coating process thereof. Background Art

[0002] Cable is a collection of wires used to transmit electrical energy or signals, consisting of conductors, insulation layers, sheaths, etc. It is widely used in various fields, such as power systems, communication networks, buildings, etc. The quality and performance of cables are crucial to the reliability of power transmission and communication.

[0003] The fire resistance of cables is also extremely important. Cables in power plants, mines and other places will have their current carrying capacity reduced due to excessively high temperatures, or the strength of the insulation layer will drop significantly, leading to short circuits and fire accidents. Therefore, it is necessary to coat the surface of the cable insulation layer with fire-retardant materials to improve the flame retardant properties of the cables.

[0004] Currently, a Chinese invention patent with publication number CN116487125A discloses a cable coating device and a coating process thereof; the coating method of the above patent is to scrape the paint on the surface of the cable through an annular scraper, and the annular scraper used in the above coating method can only coat a single cable. When the number of coated cables needs to be increased, it is necessary to add another identical coating device, which increases the production cost. Summary of the invention

[0005] In order to reduce the production cost of cable coating, the present application provides a cable coating device and a coating process thereof.

[0006] In the first aspect, the present application provides a cable coating device adopting the following technical solution:

[0007] A cable coating device and a coating process thereof, comprising a base frame and a cleaning mechanism, a first drying box, a primer coating mechanism, a second drying box, a paint coating mechanism and a third drying box sequentially installed on the top surface of the base frame, a plurality of cables simultaneously and sequentially pass through the cleaning mechanism, the first drying box, the primer coating mechanism, the second drying box, the paint coating mechanism and the third drying box; the cleaning mechanism is used to clean the cable surface, the first drying box is used to dry the moisture on the cable surface, the primer coating mechanism is used to coat the cable surface with primer, and the second drying box is used to dry the primer on the cable surface; the paint coating mechanism is used to coat the fire retardant paint on the cable surface Covered on the surface of the cable, the paint coating mechanism includes a paint bin, a bottom transmission roller and a top transmission roller; the paint bin is installed on the top surface of the base frame, fire retardant paint is added in the paint bin, and the bottom transmission roller is rotatably connected to the bottom inner wall of the paint bin; two top transmission rollers are provided, and the two top transmission rollers are rotatably connected to the top inner wall of the paint bin, and the two top transmission rollers are respectively located at both ends of the paint bin; the cable passes through the paint bin and passes over the top of the top transmission roller, the bottom of the bottom transmission roller and the top of the other top transmission roller in turn, and the cable is immersed in the paint in the paint bin; the third drying box is used for drying the paint.

[0008] Optionally, the circumference of the bottom transmission roller is connected with a connecting ring, the circumference of the connecting ring is connected with a plurality of stirring plates, the plurality of stirring plates are evenly distributed around the connecting ring, and the cable rubs against the bottom transmission roller.

[0009] Optionally, the paint bin is connected to a plurality of scraper rings near the inner wall of the third drying box, each cable passes through one of the scraper rings, the outer wall of the end of the scraper ring away from the third drying box is chamfered, and the inner wall of the end of the scraper ring away from the third drying box is chamfered.

[0010] Optionally, the third drying box is rotatably connected to a plurality of pairs of rollers via support plates on the outer side near the paint bin; each pair of rollers corresponds to a cable, one of the rollers is located on the upper surface of the cable, and the other roller is located on the lower surface of the cable, and the cable rolls between the two rollers.

[0011] Optionally, a first support plate is installed on the top surface of the base frame, and the first support plate is located between the paint bin and the third drying box. A plurality of preheating tubes are installed on the top of the first support plate, and the preheating tubes are located between the paint bin and the roller. Each preheating tube corresponds to a cable, and the cable passes through the preheating tube. The preheating tube is hollow inside, and a first electric heating wire is wound inside the preheating tube.

[0012] Optionally, the cleaning mechanism includes a cleaning box, a cleaning agent pipe, a clean water pipe and a scrubbing assembly, the cleaning box is installed on the top surface of the base frame, a partition is provided in the cleaning box, the partition divides the cleaning box into an oil cleaning chamber and a clean water spray chamber, the cable passes through the cleaning box and the partition; the cleaning agent pipe is passed through the cleaning box, the cleaning agent pipe is located in the oil cleaning chamber, the cleaning agent pipe is connected to a plurality of nozzles on the circumference of the cleaning agent pipe, and each nozzle corresponds to a cable; the clean water pipe is passed through the cleaning box, the clean water pipe is located in the clean water spray chamber, the clean water pipe is connected to a plurality of nozzles on the circumference of the clean water pipe, and each nozzle corresponds to a cable; the scrubbing assembly is installed on the cleaning box, and the scrubbing assembly is used for scrubbing the cable of the spray cleaning agent; a plurality of first scraping rings are connected to the side of the partition close to the oil cleaning chamber; a plurality of second scraping rings are connected to the cleaning box close to the inner wall of the first drying box, and each cable passes through one of the second scraping rings.

[0013] Optionally, the brush cleaning assembly includes a mounting plate, a slide seat, a lead screw, a guide rod, a brush cleaning motor and a mounting ring; two second support plates are connected to the side of the cleaning box, the two second support plates are located on one side of the oil cleaning chamber, two ends of the lead screw are rotatably connected to the two second support plates, and two ends of the guide rod are respectively connected between the two second support plates; the brush cleaning motor is installed on the side of the second support plate, the output shaft of the brush cleaning motor is coaxially connected to the lead screw, the slide seat is sleeved on the guide rod, the lead screw passes through the slide seat and is threaded; one end of the mounting plate is connected to the top surface of the slide seat, and the other end of the mounting plate extends into the cleaning box, the mounting plate is located above the cable, the mounting plate is located between the partition and the cleaning agent pipe, and the side wall of the cleaning box is provided with an opening for the mounting plate to slide; a plurality of mounting rings are provided, the mounting rings are connected to the bottom surface of the mounting plate, each cable passes through one mounting ring, the inner wall of the mounting ring is connected with bristles, and the bristles contact the surface of the cable.

[0014] Optionally, there are multiple primer coating mechanisms, each of which corresponds to a cable; the primer coating mechanism includes a spray box and a support ring, a spray pipe and a drive assembly installed in the spray box, and the cable passes through the spray box; the support ring is sleeved outside the cable, and four rotating plates are connected to the outer circumference of the support ring, and the four rotating plates are evenly distributed around the support ring; there are four spray pipes, and the four spray pipes are respectively installed at the ends of the rotating plates, and the spray pipes are arranged along the length direction of the cable, and a nozzle is installed at the end of the spray pipe close to the second drying box, and the nozzle faces the cable; the drive assembly is used to drive the support to rotate around the cable axis.

[0015] Optionally, the driving assembly includes a third support plate, a driving motor, a gear and an arc-shaped rack; the third support plate is installed on the bottom surface of the spray box, and the side of the third support plate close to the second drying box is connected to a baffle; the driving motor is installed on the side of the baffle away from the third support plate, the output shaft of the driving motor passes through the third support plate, the gear is coaxially connected to the output shaft of the driving motor, the inner side surface of the arc-shaped rack is connected to the end of one of the rotating plates, and the arc-shaped rack is meshed with the gear; the arc-shaped rack The rack is fitted to the side of the third support plate away from the baffle plate, the side of the arc-shaped rack close to the third support plate is connected to an arc-shaped plate, the outer side of the arc-shaped plate is fitted to the top surface of the third support plate, the outer side of the arc-shaped plate is connected to an arc-shaped slide plate, the arc-shaped slide plate is located on the side of the arc-shaped plate away from the arc-shaped rack, and the top surface of the third support plate is provided with an arc-shaped slide groove for the arc-shaped slide plate to slide; the top surface of the baffle plate is connected to an arc-shaped limiting plate, and the outer side of the arc-shaped limiting plate is fitted to the inner side of the arc-shaped plate.

[0016] In the second aspect, a cable coating process provided by the present application adopts the following technical solution:

[0017] A cable coating process comprises the following steps:

[0018] Step 1. Insert multiple cables into the cleaning mechanism, the first drying box, the primer coating mechanism, the second drying box, the paint coating mechanism and the third drying box in sequence at the same time;

[0019] Step 2. The cleaning mechanism cleans the oil stains on the cable surface and scrapes off the water stains;

[0020] Step 3. The first drying box dries the cleaned cable surface;

[0021] Step 4. The primer coating mechanism sprays primer on the cable surface;

[0022] Step 5. The second drying oven dries the cable coated with the primer;

[0023] Step 6. The coating coating mechanism coats the cable after the primer coating with fire retardant coating;

[0024] Step 7. The third drying box dries the cable coated with paint.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Multiple cables are sequentially passed through a cleaning mechanism, a first drying box, a primer coating mechanism, a second drying box, a paint coating mechanism and a third drying box. The cleaning mechanism first cleans the surface of the cable to remove impurities such as oil, dust, etc. The first drying box then dries the cleaned surface of the cable. The primer coating mechanism sprays primer on the cable surface to enhance the adhesion between the cable surface and the paint layer. The second drying box then dries the primer on the cable surface. The dried cables enter the paint bin. Multiple cables are immersed in the paint in the paint bin under the transmission of two top transmission rollers and a bottom transmission roller, so that the paint adheres to the cable surface. The cables with the paint adhered are then transmitted to the outside of the paint bin. The third drying box then dries the paint on the cables to complete the coating of the cable fire retardant paint. By immersing the cables in the paint bin, multiple cables can be coated at the same time without adding the same coating device, thereby reducing the cost of cable coating. One coating device can coat multiple cables at the same time, thereby improving the coating efficiency of the cables.

[0027] 2. In order to make the primer and paint adhere better to the cable, the cable surface needs to be cleaned. The cable enters the cleaning box, and the cleaning agent pipe sprays the cleaning agent to the cable through the nozzle. The brushing component brushes the cable sprayed with the cleaning agent. After the cable is brushed, the nozzle of the clean water pipe sprays clean water to the cable to rinse the cleaning agent on the surface of the cable. Finally, the cable enters the first drying box for drying, which is convenient for the coating of the primer in the next step;

[0028] 3. When the cable needs to be sprayed with primer, the primer is injected into the spray pipe, and the primer is sprayed onto the cable surface through the nozzle. The four nozzles are evenly distributed around the circumference of the cable, and each nozzle sprays more than 1 / 4 of the cable circumference, so that the primer sprayed by the four nozzles covers the cable circumference; since the concentration of the primer sprayed by the nozzle is low on both sides, the thickness of the cable is thinner at the intersection of the primer sprayed by two adjacent nozzles, and four thin primer coating strips will be formed along the length of the cable. The driving assembly drives the support ring to reciprocate within a range of 90°, so that the rotating plate drives the spray pipe to rotate, so that the primer sprayed by the nozzle rotates around the cable, and the primer is sprayed by the rotation to make the primer on the cable surface more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the cable coating device of an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the structure of the cleaning mechanism of the embodiment of the present application;

[0031] Figure 3 It is a structural schematic diagram of the primer coating mechanism of an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of the structure of the driving component of an embodiment of the present application;

[0033] Figure 5 is a schematic diagram of the exploded structure of the drive assembly of an embodiment of the present application;

[0034] Figure 6 It is a structural schematic diagram of the paint coating mechanism of an embodiment of the present application;

[0035] Figure 7 It is a schematic diagram of the cross-sectional structure of the paint bin according to the embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Cleaning mechanism; 11. Cleaning box; 111. Partition; 112. Oil cleaning chamber; 113. Clean water spray chamber; 114. First scraper ring; 115. Second scraper ring; 116. Second support plate; 12. Cleaning agent pipe; 13. Clean water pipe; 14. Brushing assembly; 141. Mounting plate; 142. Sliding seat; 143. Lead screw; 144. Guide rod; 145. Brushing motor; 146. Mounting ring; 1461. Brush hair; 2. First drying box; 21. Fan; 22. Second electric heating wire; 3. Primer coating mechanism; 31. Spraying box; 32. Support ring; 321. Rotating plate; 33. Spraying pipe; 34. Driving assembly; 34 1. The third support plate; 3411. The arc-shaped slide; 342. The driving motor; 343. The gear; 344. The arc-shaped rack; 345. The baffle; 3451. The arc-shaped limit plate; 346. The arc-shaped plate; 347. The arc-shaped slide plate; 4. The second drying box; 5. The paint coating mechanism; 51. The paint bin; 511. The scraper ring; 52. The bottom transmission roller; 53. The top transmission roller; 531. The connecting ring; 532. The stirring plate; 6. The third drying box; 61. The roller; 7. The bottom frame; 71. The first support plate; 711. The preheating tube; 712. The first electric heating wire; 72. The fourth support plate; 721. The transmission roller; 8. The cable. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-7 This application is described in further detail.

[0039] The present application embodiment discloses a cable coating device and a coating process thereof. Figure 1-7The cable coating device includes a base frame 7 and a cleaning mechanism 1, a first drying box 2, a primer coating mechanism 3, a second drying box 4, a paint coating mechanism 5 and a third drying box 6 which are sequentially installed on the top surface of the base frame 7. A plurality of cables 8 simultaneously pass through the cleaning mechanism 1, the first drying box 2, the primer coating mechanism 3, the second drying box 4, the paint coating mechanism 5 and the third drying box 6 in sequence; the cleaning mechanism 1 is used to clean the surface of the cable 8, the first drying box 2 is used to dry the moisture on the surface of the cable 8, the primer coating mechanism 3 is used to coat the surface of the cable 8 with primer, and the second drying box 4 is used to dry the primer on the surface of the cable 8. The paint coating mechanism 5 is used to coat the fire retardant paint on the surface of the cable 8, and the paint coating mechanism 5 includes a paint bin 51, a bottom transmission roller 52 and a top transmission roller 53; the paint bin 51 is installed on the top surface of the base frame 7, and the paint bin 51 is added with fire retardant paint, and the bottom transmission roller 52 is rotatably connected to the middle position of the bottom inner wall of the paint bin 51; there are two top transmission rollers 53, and the two top transmission rollers 53 are rotatably connected to the top inner wall of the paint bin 51, and the two top transmission rollers 53 are respectively located at the two ends of the paint bin 51; there are multiple cables 8, and the cables 8 pass through one end of the paint bin 51 and pass over the top of the top transmission roller 53, the bottom of the bottom transmission roller 52 and the top of the other top transmission roller 53 in turn, and finally the cables 8 pass through the other end of the paint bin 51, and the cables 8 are immersed in the paint in the paint bin 51; the third drying box 6 is used for drying the paint.

[0040] The plurality of cables 8 are sequentially passed through the cleaning mechanism 1, the first drying box 2, the primer coating mechanism 3, the second drying box 4, the paint coating mechanism 5 and the third drying box 6. The cleaning mechanism 1 first cleans the surface of the cable 8 to remove impurities such as oil, dust, etc.; the first drying box 2 then dries the surface of the cleaned cable 8, the primer coating mechanism 3 sprays primer on the surface of the cable 8 to enhance the adhesion between the surface of the cable 8 and the paint layer, and the second drying box 4 dries the primer on the surface of the cable 8. The dried cables 8 enter the paint bin 51, and the plurality of cables 8 are Under the transmission of the two top transmission rollers 53 and the bottom transmission roller 52, the cable 8 is immersed in the paint of the paint bin 51, so that the paint adheres to the surface of the cable 8, and the cable 8 with the paint adhered is then transmitted to the outside of the paint bin 51, and the third drying box 6 dries the paint on the cable 8 to complete the coating of the cable 8 with fire retardant paint; by immersing the cable 8 in the paint bin 51, multiple cables 8 can be coated at the same time, without the need to add the same coating device, thereby reducing the cost of coating the cable 8, and using one coating device can coat multiple cables 8 at the same time, thereby improving the coating efficiency of the cable 8.

[0041] The circumference of the bottom transmission roller 52 is connected with a connecting ring 531, and the circumference of the connecting ring 531 is connected with a plurality of stirring plates 532, and the plurality of stirring plates 532 are evenly distributed around the connecting ring 531; the cable 8 rubs against the bottom transmission roller 52, the cable 8 drives the bottom transmission roller 52 to rotate, the bottom transmission roller 52 drives the connecting ring 531 to rotate, the connecting ring 531 drives the stirring plates 532 to rotate, and the stirring plates 532 stir the paint in the paint bin 51 to make the paint evenly distributed and not easy to coagulate.

[0042] A plurality of scraper rings 511 are connected to the inner wall of the paint bin 51 near the third drying box 6, and each cable 8 passes through a scraper ring 511. The outer wall of the end of the scraper ring 511 away from the third drying box 6 is chamfered, and the inner wall of the end of the scraper ring 511 away from the third drying box 6 is chamfered; after the cable 8 is coated with paint, the cable 8 passes through the scraper ring 511, and the scraper ring 511 scrapes off excess paint on the surface of the cable 8, and at the same time, the scraper ring 511 is used to squeeze the paint on the surface of the cable 8 so that the paint is evenly distributed on the surface of the cable 8.

[0043] The outer side surface of the third drying box 6 close to the paint bin 51 is rotatably connected to multiple pairs of rollers 61 through a support plate; each pair of rollers 61 corresponds to a cable 8, one roller 61 is located on the upper surface of the cable 8, and the other roller 61 is located on the lower surface of the cable 8. The cable 8 rolls between the two rollers 61. Under the restriction of the top transmission roller 53 and each pair of rollers 61, the cable 8 is coaxial with the scraper ring 511.

[0044] A first support plate 71 is installed on the top surface of the base frame 7, and the first support plate 71 is located between the paint bin 51 and the third drying box 6. A plurality of preheating tubes 711 are installed on the top of the first support plate 71, and the preheating tubes 711 are located between the paint bin 51 and the roller 61. Each preheating tube 711 corresponds to a cable 8, and the cable 8 passes through the preheating tube 711. The cable 8 is coaxial with the preheating tube 711. The interior of the preheating tube 711 is hollow, and a first electric heating wire 712 is wound inside the preheating tube 711.

[0045] After the paint is applied to the surface of the cable 8, the cable 8 enters the preheating tube 711. The electric heating wire in the preheating tube 711 heats the preheating tube 711, and the preheating tube 711 preheats the paint on the surface of the cable 8 to preliminarily solidify the paint on the surface of the cable 8.

[0046] The cleaning mechanism 1 includes a cleaning box 11, a cleaning agent pipe 12, a clean water pipe 13 and a scrubbing assembly 14. The cleaning box 11 is installed on the top surface of the base frame 7. A partition 111 is provided in the cleaning box 11. The partition 111 divides the cleaning box 11 into an oil cleaning chamber 112 and a clean water spray chamber 113. The cable 8 enters from one end of the cleaning box 11 and passes through the partition 111, and finally passes through the other end of the cleaning box 11; two cleaning agent pipes 12 are provided, and the two cleaning agent pipes 12 are inserted into the cleaning box 11. The cleaning agent pipes 12 are located in the oil cleaning chamber 112, and one of the cleaning agent pipes 12 is located above the cable 8 Another cleaning agent pipe 12 is located below the cable 8, and each cleaning agent pipe 12 is connected to a plurality of nozzles on its circumference, and each nozzle corresponds to a cable 8; four clean water pipes 13 are provided, and the clean water pipes 13 are passed through the cleaning box 11. The four clean water pipes 13 are located in the clean water spray chamber 113, of which two clean water pipes 13 are located below the cable 8, and the other two clean water pipes 13 are located above the cable 8. Each clean water pipe 13 is connected to a plurality of nozzles on its circumference, and each nozzle corresponds to a cable 8; a scrubbing assembly 14 is installed on the cleaning box 11, and the scrubbing assembly 14 is used to scrub the cable 8 sprayed with cleaning agent.

[0047] In order to make the primer and paint adhere better to the cable 8, the surface of the cable 8 needs to be cleaned. The cable 8 enters the cleaning box 11, and the cleaning agent pipe 12 sprays the cleaning agent to the cable 8 through the nozzle. The brushing component 14 brushes the cable 8 sprayed with the cleaning agent. After the cable 8 is brushed, the nozzle of the clean water pipe 13 sprays clean water to the cable 8 to rinse the cleaning agent on the surface of the cable 8, and finally enters the first drying box 2 for drying, which is convenient for the coating of the primer in the next step.

[0048] A plurality of first scraper rings 114 are connected to the side of the partition 111 near the oil cleaning chamber 112, and each cable 8 passes through a first scraper ring 114, and the inner wall of the first scraper ring 114 is in contact with the surface of the cable 8, and the scraper ring scrapes off the oil cleaned by the cleaning agent on the surface of the cable 8; a plurality of second scraper rings 115 are connected to the inner wall of the cleaning box 11 near the first drying box 2, and each cable 8 passes through a second scraper ring 115, and the inner wall of the second scraper ring 115 is in contact with the surface of the cable 8, and the second scraper ring 115 scrapes off the clean water on the surface of the cable 8.

[0049] The scrubbing assembly 14 includes a mounting plate 141, a slide 142, a lead screw 143, a guide rod 144, a scrubbing motor 145 and a mounting ring 146; two second support plates 116 are connected to the side of the cleaning box 11, and the two second support plates 116 are located on one side of the oil cleaning chamber 112. Both ends of the lead screw 143 are rotatably connected to the two second support plates 116. Two guide rods 144 are provided, and the two ends of the two guide rods 144 are respectively connected between the two second support plates 116; the scrubbing motor 145 is installed on the side of the second support plate 116 away from the other second support plate 116, and the output shaft of the scrubbing motor 145 is coaxially connected to the lead screw 143 Then, the slide 142 is sleeved on the guide rod 144, the lead screw 143 passes through the slide 142 and is threadedly transmitted, one end of the mounting plate 141 is connected to the top surface of the slide 142, and the other end of the mounting plate 141 extends into the cleaning box 11, the mounting plate 141 is located above the cable 8, the mounting plate 141 is located between the partition 111 and the cleaning agent tube 12, and the side wall of the cleaning box 11 is provided with an opening for the mounting plate 141 to slide; a plurality of mounting rings 146 are provided, and the mounting rings 146 are connected to the bottom surface of the mounting plate 141, each cable 8 passes through a mounting ring 146, and the inner wall of the mounting ring 146 is connected with bristles 1461, and the bristles 1461 contact the surface of the cable 8.

[0050] When it is necessary to brush the oil stains on the surface of the cable 8, the brushing motor 145 drives the screw 143 to rotate, the screw 143 drives the slide 142 to slide on the guide rod 144, the slide 142 drives the mounting plate 141 to move, the mounting plate 141 drives the mounting ring 146 to move, and the bristles 1461 on the mounting ring 146 brush the surface of the cable 8. The brushing motor 145 drives the screw 143 to rotate reciprocatingly, so that the cable 8 can be brushed uninterruptedly, which is beneficial to cleaning the oil stains on the cable 8.

[0051] There are multiple primer coating mechanisms 3, each primer coating mechanism 3 corresponds to a cable 8; the primer coating mechanism 3 includes a spray box 31 and a support ring 32, a spray pipe 33 and a drive assembly 34 installed in the spray box 31, and the cable 8 passes through the spray box 31; the support ring 32 is sleeved on the outside of the cable 8, and the outer peripheral surface of the support ring 32 is connected to four rotating plates 321, and the four rotating plates 321 are evenly distributed around the support ring 32; there are four spray pipes 33, and the four spray pipes 33 are respectively installed at the ends of the rotating plates 321, and the spray pipes 33 are arranged along the length direction of the cable 8. A nozzle is installed at the end of the spray pipe 33 close to the second drying box 4, and the nozzle faces the cable 8, wherein the other ends of two spray pipes 33 are combined into a pipeline and used for the supply of primer, and the other ends of the other two spray pipes 33 are also combined into a pipeline and used for the supply of primer; the drive assembly 34 is used to drive the support ring 32 to rotate around the axis of the cable 8.

[0052] When it is necessary to spray primer on the cable 8, the primer is injected into the spray pipe 33, and the primer is sprayed onto the surface of the cable 8 through the nozzles. The four nozzles are evenly distributed around the circumference of the cable 8, and each nozzle sprays more than 1 / 4 of the circumference of the cable 8, so that the primer sprayed by the four nozzles covers the circumference of the cable 8; since the concentration of the primer sprayed by the nozzles on both sides is relatively low, the thickness of the cable 8 is relatively thin at the intersection of the primers sprayed by two adjacent nozzles, and four thin primer coating strips will be formed along the length direction of the cable 8. The driving assembly 34 drives the support ring 32 to reciprocate within a range of 90°, so that the rotating plate 321 drives the spray pipe 33 to rotate, so that the primer sprayed by the nozzles rotates around the cable 8, and the primer is sprayed by rotating to make the primer on the surface of the cable 8 more uniform.

[0053] The driving assembly 34 includes a third support plate 341, a driving motor 342, a gear 343 and an arc-shaped rack 344; the third support plate 341 is installed on the bottom surface of the spray box 31, and the side of the third support plate 341 close to the second drying box 4 is connected with a baffle 345; the driving motor 342 is installed on the side of the baffle 345 away from the third support plate 341, the output shaft of the driving motor 342 passes through the third support plate 341, the gear 343 is coaxially connected to the output shaft of the driving motor 342, the middle position of the inner side of the arc-shaped rack 344 is connected to the end of one of the rotating plates 321, and the arc-shaped rack 344 and the gear 343 are meshed; the arc-shaped rack 344 is connected to the end of the rotating plate 321, and the arc-shaped rack 344 is meshed with the gear 343; 44 is fitted to the side of the third support plate 341 away from the baffle plate 345, the side of the arc-shaped rack 344 close to the third support plate 341 is connected to the arc-shaped plate 346, the outer side of the arc-shaped plate 346 is fitted to the top surface of the third support plate 341, the outer side of the arc-shaped plate 346 is connected to the arc-shaped slide plate 347, the arc-shaped slide plate 347 is located on the side of the arc-shaped plate 346 away from the arc-shaped rack 344, and the top surface of the third support plate 341 is provided with an arc-shaped slide groove 3411 for the arc-shaped slide plate 347 to slide; the top surface of the baffle plate 345 is connected to the arc-shaped limiting plate 3451, and the outer side of the arc-shaped limiting plate 3451 is fitted to the inner side of the arc-shaped plate 346.

[0054] When it is necessary to drive the support ring 32 to rotate, the driving motor 342 drives the gear 343 to rotate. Since the arc-shaped rack 344 is connected to the arc-shaped plate 346, the arc-shaped plate 346 slides between the top surface of the third support plate 341 and the bottom surface of the arc-shaped limit plate 3451. Therefore, under the restriction of the arc-shaped plate 346, the gear 343 drives the arc-shaped rack 344 to rotate around the axis of the support ring 32, and the support ring 32 can rotate around the cable 8; when the arc-shaped plate 346 rotates, the arc-shaped plate 346 drives the arc-shaped slide plate 347 to rotate in the arc-shaped slide groove 3411, and the arc-shaped slide plate 347 limits the lateral movement of the arc-shaped rack 344 through the arc-shaped plate 346, thereby improving the stability of the movement of the arc-shaped rack 344.

[0055] The primer coating mechanism 3 and the second drying box 4 can be provided in multiple groups. In the embodiment of the present application, the primer coating mechanism 3 and the second drying box 4 are provided in two groups, one of which is provided on the side of the first drying box 2 away from the cleaning mechanism 1, and the other is provided on the side of the paint coating mechanism 5 away from the third drying box 6.

[0056] After spraying a layer of primer on the cable 8 and drying it in the second drying box 4, the cable 8 is transported to the next primer coating mechanism 3, and then coated with another layer of primer on the cable 8, and then dried in another second drying mechanism. Multiple layers of primer can be coated on the cable 8.

[0057] A plurality of pairs of fourth support plates 72 are arranged on the top surface of the base frame 7, a pair of fourth support plates 72 is provided on the side of the cleaning mechanism 1 away from the first drying box 2, a pair of fourth support plates 72 is provided between the first drying box 2 and the primer coating mechanism 3, a pair of fourth support plates 72 is provided between the two groups of primer coating mechanisms 3 and the second drying box 4, a pair of fourth support plates 72 is provided between the paint coating mechanism 5 and the second drying box 4, and a pair of fourth support plates 72 is provided on the side of the third drying box 6 away from the paint coating mechanism 5; two transmission rollers 721 are rotatably connected between the two fourth support plates 72 of each pair, one of the transmission rollers 721 is located above the cable 8, and the other transmission roller 721 is located below the cable 8, and the cable 8 rolls on the circumference of the transmission roller 721.

[0058] The first drying box 2, the second drying box 4 and the third drying box 6 have the same structure. A fan 21 is arranged at the bottom of the drying box. A second heating wire 22 is arranged inside the drying box. The second heating wire 22 is located above the fan 21. The fan 21 blows air upwards, and the airflow passes through the second heating wire 22 to form a hot airflow to evaporate the moisture on the surface of the cable 8.

[0059] The cable 8 coating process includes the following steps:

[0060] Step 1. Insert multiple cables 8 into the cleaning mechanism 1, the first drying box 2, the primer coating mechanism 3, the second drying box 4, the paint coating mechanism 5 and the third drying box 6 in sequence at the same time;

[0061] Step 2. The cleaning mechanism 1 cleans the oil stains on the surface of the cable 8 and scrapes off the water stains;

[0062] Step 3. The first drying box 2 dries the surface of the cleaned cable 8;

[0063] Step 4. The primer coating mechanism 3 sprays primer on the surface of the cable 8;

[0064] Step 5. The second drying box 4 dries the cable 8 coated with the primer;

[0065] Step 6. The coating coating mechanism 5 coats the cable 8 coated with the primer with fire retardant coating;

[0066] Step 7. The third drying box 6 dries the cable 8 coated with the paint.

[0067] The implementation principle of a cable coating device and its coating process in the embodiment of the present application is as follows: a plurality of cables 8 are sequentially passed through a cleaning mechanism 1, a first drying box 2, a primer coating mechanism 3, a second drying box 4, a paint coating mechanism 5 and a third drying box 6. The cleaning mechanism 1 first cleans the surface of the cable 8 to remove impurities such as oil, dust, etc. The first drying box 2 then dries the surface of the cleaned cable 8. The primer coating mechanism 3 sprays primer on the surface of the cable 8 to enhance the adhesion between the surface of the cable 8 and the paint layer. The second drying box 4 then dries the primer on the surface of the cable 8. The dried cable 8 is then The cables 8 are inserted into the paint bin 51, and are immersed in the paint of the paint bin 51 under the transmission of the two top transmission rollers 53 and the bottom transmission roller 52, so that the paint adheres to the surface of the cables 8. The cables 8 with the paint adhered are then transmitted to the outside of the paint bin 51, and the third drying box 6 dries the paint on the cables 8 to complete the coating of the cables 8 with fire retardant paint. By immersing the cables 8 in the paint bin 51, multiple cables 8 can be coated at the same time without adding the same coating device, thereby reducing the cost of coating the cables 8. One coating device can be used to coat multiple cables 8 at the same time, thereby improving the coating efficiency of the cables 8.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable coating device, characterized in that: The invention comprises a base frame (7) and a cleaning mechanism (1), a first drying box (2), a primer coating mechanism (3), a second drying box (4), a paint coating mechanism (5) and a third drying box (6) which are sequentially installed on the top surface of the base frame (7); a plurality of cables (8) simultaneously and sequentially pass through the cleaning mechanism (1), the first drying box (2), the primer coating mechanism (3), the second drying box (4), the paint coating mechanism (5) and the third drying box (6); the cleaning mechanism (1) is used to clean the surface of the cable (8); the first drying box (2) is used to dry the moisture on the surface of the cable (8); the primer coating mechanism (3) is used to coat the surface of the cable (8); the second drying box (4) is used to dry the primer on the surface of the cable (8); the paint coating mechanism (5) is used to coat the fire retardant paint on the surface of the cable (8); the paint The coating mechanism (5) comprises a coating bin (51), a bottom transmission roller (52) and a top transmission roller (53); the coating bin (51) is mounted on the top surface of the base frame (7), a fire retardant coating is added in the coating bin (51), and the bottom transmission roller (52) is rotatably connected to the bottom inner wall of the coating bin (51); two top transmission rollers (53) are provided, and the two top transmission rollers (53) are rotatably connected to the top inner wall of the coating bin (51), and the two top transmission rollers (53) are respectively located at two ends of the coating bin (51); a cable (8) passes through the coating bin (51) and passes over the top of the top transmission roller (53), the bottom of the bottom transmission roller (52) and the top of the other top transmission roller (53) in sequence, and the cable (8) is immersed in the coating in the coating bin (51); the third drying box (6) is used for drying the coating; The primer coating mechanism (3) is provided in plurality, and each primer coating mechanism (3) corresponds to a cable (8); the primer coating mechanism (3) comprises a spray box (31), a support ring (32) installed in the spray box (31), a spray pipe (33) and a drive assembly (34), and the cable (8) passes through the spray box (31); the support ring (32) is sleeved outside the cable (8), and the outer peripheral surface of the support ring (32) is connected to four rotating plates (321), and the four rotating plates (321) are connected to the outer peripheral surface of the support ring (32). The rotating plates (321) are evenly distributed around the supporting ring (32); four spraying pipes (33) are provided, and the four spraying pipes (33) are respectively installed at the ends of the rotating plate (321); the spraying pipes (33) are arranged along the length direction of the cable (8); a spray head is installed at the end of the spraying pipe (33) close to the second drying box (4), and the spray head faces the cable (8); the driving component (34) is used to drive the supporting ring (32) to rotate around the axis of the cable (8); The driving assembly (34) comprises a third support plate (341), a driving motor (342), a gear (343) and an arc-shaped rack (344); the third support plate (341) is mounted on the bottom surface of the spray box (31), and the side of the third support plate (341) close to the second drying box (4) is connected with a baffle (345); the driving motor (342) is mounted on the side of the baffle (345) away from the third support plate (341), the output shaft of the driving motor (342) passes through the third support plate (341), the gear (343) is coaxially connected to the output shaft of the driving motor (342), the inner side surface of the arc-shaped rack (344) is connected to the end of one of the rotating plates (321), and the arc-shaped rack (344) is meshed with the gear (343); the arc-shaped rack ( The arc-shaped rack (344) is attached to the side of the third support plate (341) away from the baffle (345), the side of the arc-shaped rack (344) close to the third support plate (341) is connected to an arc-shaped plate (346), the outer side of the arc-shaped plate (346) is attached to the top surface of the third support plate (341), the outer side of the arc-shaped plate (346) is connected to an arc-shaped slide plate (347), and the arc-shaped slide plate (347) is located on the side of the arc-shaped plate (346) away from the arc-shaped rack (344), and the top surface of the third support plate (341) is provided with an arc-shaped slide groove (3411) for the arc-shaped slide plate (347) to slide; the top surface of the baffle plate (345) is connected to a circular arc-shaped limiting plate (3451), and the outer side surface of the circular arc-shaped limiting plate (3451) is in contact with the inner side surface of the circular arc-shaped plate (346).

2. A cable coating device according to claim 1, characterized in that: The circumferential surface of the bottom transmission roller (52) is connected to a connecting ring (531), and the circumferential surface of the connecting ring (531) is connected to a plurality of stirring plates (532), and the plurality of stirring plates (532) are evenly distributed around the connecting ring (531), and the cable (8) rubs against the bottom transmission roller (52).

3. A cable coating device according to claim 1, characterized in that: The paint bin (51) is connected to a plurality of scraper rings (511) near the inner wall of the third drying box (6), and each cable (8) passes through one of the scraper rings (511). The outer wall of the end of the scraper ring (511) away from the third drying box (6) is chamfered, and the inner wall of the end of the scraper ring (511) away from the third drying box (6) is chamfered.

4. A cable coating device according to claim 1, characterized in that: The third drying box (6) has a plurality of pairs of rollers (61) rotatably connected to the outer side surface of the coating bin (51) via a support plate; each pair of rollers (61) corresponds to a cable (8), one of the rollers (61) is located on the upper surface of the cable (8), and the other roller (61) is located on the lower surface of the cable (8), and the cable (8) rolls between the two rollers (61).

5. A cable coating device according to claim 4, characterized in that: A first support plate (71) is installed on the top surface of the base frame (7), and the first support plate (71) is located between the paint bin (51) and the third drying box (6). A plurality of preheating tubes (711) are installed on the top of the first support plate (71), and the preheating tubes (711) are located between the paint bin (51) and the roller (61). Each preheating tube (711) corresponds to a cable (8), and the cable (8) passes through the preheating tube (711). The interior of the preheating tube (711) is hollow, and a first electric heating wire (712) is wound inside the preheating tube (711).

6. A cable coating device according to claim 1, characterized in that: The cleaning mechanism (1) comprises a cleaning box (11), a cleaning agent pipe (12), a clean water pipe (13) and a scrubbing assembly (14); the cleaning box (11) is mounted on the top surface of the base frame (7); a partition (111) is arranged inside the cleaning box (11); the partition (111) divides the cleaning box (11) into an oily cleaning chamber (112) and a clean water spray chamber (113); the cable (8) passes through the cleaning box (11) and the partition (111); the cleaning agent pipe (12) is arranged inside the cleaning box (11); the cleaning agent pipe (12) is located in the oily cleaning chamber (112); a plurality of nozzles are connected to the circumference of the cleaning agent pipe (12); each nozzle corresponds to a The clean water pipe (13) is inserted into the cleaning box (11), the clean water pipe (13) is located in the clean water spray chamber (113), and the circumference of the clean water pipe (13) is connected to a plurality of nozzles, each nozzle corresponding to a cable (8); the scrubbing assembly (14) is installed on the cleaning box (11), and the scrubbing assembly (14) is used to scrub the cable (8) of the spray cleaning agent; the side of the partition (111) close to the oil cleaning chamber (112) is connected to a plurality of first scraping rings (114); the cleaning box (11) is connected to a plurality of second scraping rings (115) close to the inner wall of the first drying box (2), and each cable (8) passes through a second scraping ring (115).

7. A cable coating device according to claim 6, characterized in that: The scrubbing assembly (14) comprises a mounting plate (141), a slide seat (142), a lead screw (143), a guide rod (144), a scrubbing motor (145) and a mounting ring (146); the side of the cleaning box (11) is connected to two second support plates (116), the two second support plates (116) are located on one side of the oil cleaning chamber (112), the two ends of the lead screw (143) are rotatably connected in the two second support plates (116), and the two ends of the guide rod (144) are respectively connected between the two second support plates (116); the scrubbing motor (145) is mounted on the side of the second support plate (116), the output shaft of the scrubbing motor (145) is coaxially connected to the lead screw (143), the slide seat (142) is sleeved on the guide rod (144), and the The lead screw (143) passes through the slide seat (142) and is threadedly driven; one end of the mounting plate (141) is connected to the top surface of the slide seat (142), and the other end of the mounting plate (141) extends into the cleaning box (11); the mounting plate (141) is located above the cable (8), and the mounting plate (141) is located between the partition (111) and the cleaning agent pipe (12); the side wall of the cleaning box (11) is provided with an opening for the mounting plate (141) to slide; a plurality of mounting rings (146) are provided, and the mounting rings (146) are connected to the bottom surface of the mounting plate (141), and each cable (8) passes through one mounting ring (146); the inner wall of the mounting ring (146) is connected with bristles (1461), and the bristles (1461) contact the surface of the cable (8).

8. A cable coating process, applicable to the cable coating device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1. Inserting a plurality of cables (8) into the cleaning mechanism (1), the first drying box (2), the primer coating mechanism (3), the second drying box (4), the paint coating mechanism (5) and the third drying box (6) in sequence at the same time; Step 2. The cleaning mechanism (1) cleans the oil stains on the surface of the cable (8) and scrapes off the water stains; Step 3. The first drying box (2) dries the surface of the cleaned cable (8); Step 4. The primer coating mechanism (3) sprays primer on the surface of the cable (8); Step 5. The second drying box (4) dries the cable (8) coated with the primer; Step 6. The coating coating mechanism (5) coats the cable (8) coated with the primer with fire retardant coating; Step 7. The third drying box (6) dries the cable (8) coated with the paint.

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