Uniform powder coating device for surface layer of wire and cable insulating sheath

Abstract

The utility model discloses a uniform powder coating device for the surface layer of a wire and cable insulation sheath, relates to the technical field of cable manufacturing, and aims to solve the technical problem that after a cable penetrates through talcum powder, isolation powder on the outer surface of the cable is instable in adhesion under zero pressure, the uniform powder coating device comprises a powder box with one side provided with a motor, and the interior of the powder box is connected with a material turning rod through the motor; and a material pushing pipe is arranged below the material turning rod. According to the talcum powder stirring device, the motor drives the stirring rod to rotate to stir enough talcum powder in the powder box, and meanwhile, the protruding strips further drive the clamping blocks to make contact with the clamping grooves in the outer surface of the control ring and control the material pushing pipe to rotate; in the rotating process of the pushing pipe, talcum powder is kept to be introduced into the pushing pipe through a communicating groove, and a tending force for moving towards the stabilizing pipe is applied to the talcum powder under the action of a pushing plate, so that part of the talcum powder is pressed by a trumpet-shaped extrusion pipe and is discharged along the other end of the stabilizing pipe; and the adhesion amount and adhesion stability of the powder on the surface of the cable are increased under the condition of increasing the pressure of the talcum powder on the surface of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing, and more specifically to a uniform powder coating device for the surface layer of the insulating sheath of electric wires and cables. Background Art

[0002] Cable manufacturing is generally completed through three processes: drawing, twisting, and coating. The more complex the model specifications, the higher the process repeatability. Coating is to wrap multiple plastic-wrapped copper wires around the middle insulated wire during the twisting process, and then apply a layer of talcum powder on the cable surface to prevent the coated sheath from sticking to the internal cable. The talcum powder coating is generally to pass the cable directly through a powder box filled with powder so that the outer surface adheres to the talcum powder to prevent the cable from sticking to the coated sheath. At the same time, the powder box will use a motor to control the stirring roller to dissipate heat and prevent powder agglomeration.

[0003] When the cable passes through the powder, since the powder itself is light, there is no pressure to apply the powder to the cable during the process of the cable passing through the powder, resulting in the talc powder not adhering firmly enough. After the cable adheres to the powder, the powder will fall off during the process of moving to the coating equipment, affecting its function of isolating the cable from the coating sheath. In view of this, we propose a uniform powder coating device for the surface of the insulating sheath of wires and cables. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art, meet practical needs, and provide a device for uniformly coating the surface of the insulating sheath of wires and cables to solve the technical problem that the insulating powder on the outer surface of the cable is not firmly adhered without pressure after passing through talcum powder.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a uniform powder coating device for the surface layer of the insulating sheath of a wire and cable, comprising a powder box with a motor arranged on one side, a material turning rod connected to the inside of the powder box through the motor, a material pushing tube arranged below the material turning rod, a first support block and a second support block movably connected to the outer surface of the material pushing tube at both ends, the first support block and the second support block are both fixedly connected to the bottom surface of the inner wall of the powder box;

[0006] The outer surface of the material turning rod is evenly fixedly connected with a plurality of convex strips, the outer surface of the convex strip is fixedly connected with a clamping block, the outer surface of the pushing tube is provided with a connecting groove, a pushing plate is arranged on the edge of the connecting groove inside the powder box, one end of the pushing tube is fixedly connected with a stabilizing tube, the other end of the pushing tube is fixedly connected with a control ring, and one side of the outer surface of the control ring is provided with a clamping groove matching the connecting groove.

[0007] The utility model drives the turning rod to rotate by a motor to turn over a sufficient amount of talcum powder inside the powder box, and further drives the card block to contact the card groove on the outer surface of the control ring through the convex strip and control the rotation of the push tube. During the rotation of the push tube, the talcum powder is kept inside through the connecting groove and a tendency force is given to the talcum powder to move toward the stabilizing tube under the action of the push plate, so that part of the talcum powder is pressed by the trumpet-shaped extrusion tube and discharged along the other end of the stabilizing tube, thereby increasing the amount of powder adhesion on the cable surface and the adhesion stability while increasing the pressure of the talcum powder on the cable surface.

[0008] Preferably, the outer surface of the powder box is penetrated by a cable through hole, one of the through holes is provided with a scraper ring, the scraper ring is provided with a trumpet-shaped strong pressure ring, one side of the strong pressure ring is connected to a stabilizing ring; when the cable moves toward the outside of the powder box, the strong pressure ring gradually squeezes the powder on its outer surface into the gap between the twisted wires in the cable, thereby increasing the adhesion between the powder and the cable and removing excess powder, further improving the adhesion effect of the powder.

[0009] Preferably, the inner diameter of the stabilizing tube is larger than the outer diameter of the cable, and the stabilizing tube and the scraping ring do not contact each other, so that some non-adherent powder pressed toward the cable surface can enter the outer space of the pushing tube and turn over, avoiding powder agglomeration.

[0010] Preferably, a trumpet-shaped extrusion tube is provided between the connecting groove and the stabilizing tube; after the powder is transported into the extrusion tube, pressure is applied to enhance the adhesion effect of the powder.

[0011] Preferably, the stabilizing ring matches the outer diameter of the cable, and the maximum diameter of the strong pressure ring is the same as the inner diameter of the stabilizing tube; the powder is compacted again after pressure is applied, so that it enters the gaps between the wires inside the cable, thereby improving the powder adhesion effect.

[0012] Preferably, the first support block is movably connected to the other side of the outer surface of the control ring, and the stabilizing tube is located inside the second support block; the first support block and the second support block provide support for the rotation of the push tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model drives the turning rod to rotate by a motor to turn over a sufficient amount of talcum powder inside the powder box, and further drives the block to contact the groove on the outer surface of the control ring through the convex strip and control the rotation of the push tube. During the rotation of the push tube, the talcum powder is kept inside through the connecting groove and a force is applied to the talcum powder to move toward the stabilizing tube under the action of the push plate, so that part of the talcum powder is pressed by the trumpet-shaped extrusion tube and discharged along the other end of the stabilizing tube, thereby increasing the amount of powder attached to the cable surface and the adhesion stability while increasing the pressure of the talcum powder on the cable surface.

[0015] 2. When the cable moves toward the outside of the powder box, the utility model gradually squeezes the powder on its outer surface into the gaps between the twisted wires in the cable through the strong pressure ring, thereby increasing the adhesion between the powder and the cable and removing excess powder, further improving the adhesion effect of the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the powder box of the utility model;

[0018] Figure 3 This is a schematic diagram of the side sectional structure of the push tube of the utility model;

[0019] Figure 4 This is a schematic diagram of the side sectional structure of the scraper ring of the utility model;

[0020] Figure 5 For the utility model Figure 2 -Schematic diagram of the structure at A.

[0021] Description of the numbers in the figure:

[0022] 1. Powder box; 2. Turning rod; 201. Raised strip; 202. Block; 3. Pushing tube; 301. Pushing plate; 302. Connecting groove; 303. Stabilizing tube; 304. Control ring; 305. Extrusion tube; 4. First supporting block; 5. Second supporting block; 6. Scraping ring; 601. Strong pressure ring; 602. Stabilizing ring. DETAILED DESCRIPTION

[0023] like Figures 1 to 5 As shown, the utility model relates to a uniform powder coating device for the surface layer of the insulating sheath of a wire and cable, comprising a powder box 1 with a motor arranged on one side, a material turning rod 2 connected to the inside of the powder box 1 through the motor, a material pushing tube 3 is arranged below the material turning rod 2, and a first support block 4 and a second support block 5 are movably connected to the two ends of the outer surface of the material pushing tube 3, respectively, and the first support block 4 and the second support block 5 are fixedly connected to the bottom surface of the inner wall of the powder box 1;

[0024] The outer surface of the tipping rod 2 is evenly and fixedly connected with a plurality of convex strips 201, the outer surface of the convex strip 201 is fixedly connected with a clamping block 202, the outer surface of the pushing tube 3 is provided with a connecting groove 302, and a pushing plate 301 is arranged on the edge of the connecting groove 302 inside the powder box 1, one end of the pushing tube 3 is fixedly connected with a stabilizing tube 303, and the other end of the pushing tube 3 is fixedly connected with a control ring 304, and one side of the outer surface of the control ring 304 is provided with a clamping groove matching the connecting groove 302.

[0025] In an embodiment of the utility model, a trumpet-shaped extrusion tube 305 is provided between the connecting groove 302 and the stabilizing tube 303 , the stabilizing ring 602 matches the outer diameter of the cable, and the maximum diameter of the strong pressure ring 601 is the same as the inner diameter of the stabilizing tube 303 .

[0026] In the embodiment of the present invention, the first support block 4 is movably connected to the other side of the outer surface of the control ring 304 , and the stabilizing tube 303 is located inside the second support block 5 .

[0027] As another embodiment of the utility model, a cable through hole is penetrated through the outer surface of the powder box 1, a scraper ring 6 is arranged inside one of the through holes, a trumpet-shaped strong pressure ring 601 is provided inside the scraper ring 6, one side of the strong pressure ring 601 is connected to a stabilizing ring 602, the inner diameter of the stabilizing tube 303 is larger than the outer diameter of the cable, and the stabilizing tube 303 and the scraper ring 6 do not contact each other.

[0028] Working principle: This embodiment provides a uniform powder coating device for the surface layer of the insulating sheath of wires and cables. When in use, a sufficient amount of talcum powder is filled in the powder box 1, and then the turning rod 2 is driven by the motor to rotate to turn the talcum powder in the powder box 1. At the same time, the block 202 is further driven by the convex strip 201 to contact the outer surface groove of the control ring 304 and control the rotation of the push tube 3. During the rotation of the push tube 3, the talcum powder is kept in the interior through the connecting groove 302, and under the action of the push plate 301, a tendency force is given to the talcum powder to move toward the stabilizing tube 303, so that part of the talcum powder is pressed by the trumpet-shaped extrusion tube 305 and discharged along the other end of the stabilizing tube 303, while increasing the pressure of the talcum powder on the cable surface. The amount of powder adhesion on the cable surface and the adhesion stability are increased, and then when the cable moves to the outside of the powder box 1, the outer surface powder is gradually squeezed into the gap between the twisted wires in the cable through the strong pressure ring 601 and removed by the stabilizing ring 602, thereby increasing the adhesion between the powder and the cable and removing excess powder, further improving the adhesion effect of the powder.

[0029] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A device for uniformly coating the surface of an insulating sheath of a wire or cable with powder, comprising a powder box (1) with a motor disposed on one side, characterized in that: The powder box (1) is connected to a material turning rod (2) via a motor, a material pushing tube (3) is arranged below the material turning rod (2), and the two ends of the outer surface of the material pushing tube (3) are movably connected to a first support block (4) and a second support block (5), and the first support block (4) and the second support block (5) are both fixedly connected to the bottom surface of the inner wall of the powder box (1); The outer surface of the tipping rod (2) is evenly and fixedly connected with a plurality of convex strips (201), the outer surface of the convex strip (201) is fixedly connected with a clamping block (202), the outer surface of the pushing tube (3) is provided with a connecting groove (302), and a pushing plate (301) is arranged at the edge of the connecting groove (302) on the inner side of the powder box (1), one end of the pushing tube (3) is fixedly connected with a stabilizing tube (303), and the other end of the pushing tube (3) is fixedly connected with a control ring (304), and one side of the outer surface of the control ring (304) is provided with a clamping groove matching the connecting groove (302).

2. The uniform powder coating device for the surface layer of the insulating sheath of wires and cables according to claim 1 is characterized in that: The outer surface of the powder box (1) is penetrated with a cable through hole, a scraper ring (6) is arranged inside one of the through holes, a trumpet-shaped strong pressure ring (601) is arranged inside the scraper ring (6), and one side of the strong pressure ring (601) is connected to a stabilizing ring (602).

3. The uniform powder coating device for the surface layer of the insulating sheath of wires and cables according to claim 2 is characterized in that: The inner diameter of the stabilizing tube (303) is greater than the outer diameter of the cable, and the stabilizing tube (303) and the scraping ring (6) do not contact each other.

4. The uniform powder coating device for the surface layer of the insulating sheath of wires and cables according to claim 1 is characterized in that: A trumpet-shaped extrusion tube (305) is provided between the communication groove (302) and the stabilizing tube (303).

5. The uniform powder coating device for the surface layer of the insulating sheath of wires and cables according to claim 2 is characterized in that: The stabilizing ring (602) matches the outer diameter of the cable, and the maximum diameter of the strong pressure ring (601) is the same as the inner diameter of the stabilizing tube (303).

6. The uniform powder coating device for the surface layer of the insulating sheath of wires and cables according to claim 1 is characterized in that: The first support block (4) is movably connected to the other side of the outer surface of the control ring (304), and the stabilizing tube (303) is located inside the second support block (5).

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