Insulating layer coating device for cable production

Abstract

The utility model relates to cable production field especially is concerned with a kind of insulating layer coating device for cable production, including coating mechanism, and the extrusion end of coating mechanism is equipped with fixed frame, still including blowing mechanism and cooling mechanism, and blowing mechanism is located fixed frame front side. Through the rotation of bevel gear driven by rotating electrical machine, then utilize bevel gear to drive bevel gear ring and rotating frame wire core outside rotation, immediately make multiple blowing nozzles on rotating frame carry out helical injection dry dust-free air to wire core, to can carry out the cleaning to the gap of multiple stranded wire core, by the wire core of insulating layer coating is passed through bevel gear cover, to let bevel gear cover carry out extrusion to insulating layer, so that insulating layer and wire core are more adhered, simultaneously utilize the atomizing nozzle of spray frame inner ring and spray the extremely fine water mist to carry out preliminary cooling to the insulating layer of coating, then immerse wire core into sink and carry out thorough cooling again, avoid temperature drop too fast and cause wire core and insulating layer separation.

Description

Technical Field

[0001] This utility model relates to the field of cable production, and in particular to an insulation layer coating device for cable production. Background Technology

[0002] The principle of cable insulation layer coating is mainly achieved through the extrusion process, that is, using an extruder to squeeze molten insulation material into a die, and then extruding it through the die and evenly wrapping it on the surface of the conductor (such as copper wire or aluminum wire) to form a tightly bonded insulation layer;

[0003] In the existing cable production process, since there is no corresponding cleaning mechanism before the extrusion die, dust, oil or moisture may adhere to the gaps between the stranded conductor cores. This can cause the insulation layer to separate from the conductor core after it passes through the die. In addition, after the entire insulation layer covers the outside of the conductor core, it is directly immersed in water for cooling as the cable moves. This may cause the insulation layer to cool down quickly, which can also easily lead to the separation of the conductor core from the insulation layer. Utility Model Content

[0004] The purpose of this invention is to provide an insulation layer coating device for cable production in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An insulation coating device for cable production includes a coating mechanism, a fixed frame at the extrusion end of the coating mechanism, a purging mechanism and a cooling mechanism, the purging mechanism being located in front of the fixed frame and the cooling mechanism being located behind the fixed frame.

[0007] The purging mechanism includes a positioning ring, a rotating frame is fitted on the outside of the positioning ring, multiple arrayed purging nozzles are fixed on the inner ring of the rotating frame, a conical toothed ring is provided at the front end of the rotating frame, a bevel gear is meshed on the front side of the conical toothed ring, and a rotary motor is fixedly provided at the input end of the bevel gear.

[0008] The cooling mechanism includes a spray frame, a conical shroud fixed at the center of the front end of the spray frame, multiple atomizing nozzles fixed on the inner wall of the rear side of the spray frame, and a water inlet connector fixed on the outer side of the rear end of the conical shroud.

[0009] Preferably, the outer ring of the rotating frame has a concave annular groove, and multiple purge nozzles on the inner ring of the rotating frame are connected to the annular groove, with the positioning ring located inside the annular groove.

[0010] Preferably, the rear end of the conical gear ring is fixed with multiple arc-shaped plates, and the rear end of each arc-shaped plate is fixedly connected to the front side of the rotating frame.

[0011] Preferably, sealing rings for sealing the concave grooves of the rotating frame are provided on both sides of the positioning ring.

[0012] Preferably, the positioning ring is fixed to the front side of the fixing frame, and the front end of the spray frame is fixed to the rear side of the fixing frame.

[0013] Preferably, the conical shroud has a hollow internal structure, and the water inlet connector is connected to the hollow structure of the conical shroud.

[0014] Preferably, the coating mechanism includes an extruder, with an extrusion motor fixedly installed at one end of the extruder, an extrusion head fixedly installed at the other end of the extruder, a support fixedly installed at the bottom of the extruder, and a feed hopper provided at the top of the extruder.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. The bevel gear is driven to rotate by a rotary motor. The bevel gear then drives the conical gear ring and the rotating frame to rotate around the outside of the wire core. This causes multiple blowing nozzles on the rotating frame to spirally spray dry, dust-free air onto the wire core, thereby cleaning the gaps between the multi-strand stranded wire core.

[0017] 2. By passing the insulated wire core through the conical cover, the conical cover squeezes the insulation layer, making the insulation layer and the wire core fit together more closely. At the same time, the ultra-fine water mist sprayed from the atomizing nozzles in the inner ring of the spray frame is used to initially cool the insulated layer. Then, the wire core is immersed in the water tank for thorough cooling to prevent the temperature from dropping too quickly and causing the wire core to separate from the insulation layer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the insulation layer coating device for cable production described in this utility model;

[0020] Figure 2 This is a front view of the cable manufacturing insulation layer covering device described in this utility model;

[0021] Figure 3 yes Figure 2 Sectional view at point AA;

[0022] Figure 4 This is a partial part drawing of the covering mechanism of the insulation layer covering device for cable production described in this utility model;

[0023] Figure 5This is a partial part drawing of the water inlet connector of the cable insulation layer coating device described in this utility model;

[0024] Figure 6 This is a partial part drawing of the purging mechanism of the insulation layer coating device for cable production described in this utility model;

[0025] Figure 7 This is a partial part drawing of the rotating frame of the cable insulation layer coating device described in this utility model;

[0026] Figure 8 This is a partial part drawing of the positioning ring of the insulation layer coating device for cable production described in this utility model;

[0027] Figure 9 This is a partial drawing of the conical cover of the cable insulation layer covering device described in this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Coating mechanism; 2. Blowing mechanism; 3. Cooling mechanism; 4. Fixing frame; 5. Sealing ring; 11. Extruder; 12. Extrusion motor; 13. Support; 14. Extrusion head; 21. Rotating frame; 22. Positioning ring; 23. Blowing nozzle; 24. Conical gear ring; 25. Bevel gear; 26. Rotary motor; 31. Conical cover; 32. Spray frame; 33. Atomizing nozzle; 34. Water inlet connector. Detailed Implementation

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1-9 As shown, an insulation coating device for cable production includes a coating mechanism 1, a fixed frame 4 at the extrusion end of the coating mechanism 1, a purging mechanism 2 and a cooling mechanism 3, the purging mechanism 2 being located in front of the fixed frame 4 and the cooling mechanism 3 being located behind the fixed frame 4.

[0033] In this embodiment: the coating mechanism 1 includes an extruder 11, an extrusion motor 12 is fixedly installed at one end of the extruder 11, an extrusion head 14 is fixed at the other end of the extruder 11, a support 13 is fixed at the bottom of the extruder 11, and a feed hopper is provided at the top of the extruder 11. The extrusion motor 12 is rotated to push the insulating material fed into the feed hopper by the extruder 11. At the same time, the extruder 11 heats and melts the insulating material inside, thereby extruding the melted insulating material from the extrusion head 14 and wrapping it around the outside of the conductor core.

[0034] In this embodiment: the purging mechanism 2 includes a positioning ring 22, a rotating frame 21 is sleeved on the outside of the positioning ring 22, a plurality of arrayed purging nozzles 23 are fixed on the inner ring of the rotating frame 21, a conical gear ring 24 is provided at the front end of the rotating frame 21, a bevel gear 25 is meshed on the front side of the conical gear ring 24, a rotary motor 26 is fixedly provided at the input end of the bevel gear 25, an annular groove with a concave structure is opened on the outer ring of the rotating frame 21, the plurality of purging nozzles 23 on the inner ring of the rotating frame 21 are all connected to the annular groove, the positioning ring 22 is located inside the annular groove, a plurality of arc plates are fixed at the rear end of the conical gear ring 24, and the rear end of each arc plate is fixedly connected to the front side of the rotating frame 21, and the two sides of the positioning ring 22 are provided with a means for adjusting the rotating frame 21. The sealing ring 5 of the concave groove seal is driven by the rotating part of the rotary motor 26 to rotate the bevel gear 25. The rotation of the bevel gear 25 drives the conical gear ring 24 and the rotating frame 21 to rotate outside the positioning ring 22. During this process, the two sealing rings 5 ​​seal the position where the annular groove of the rotating frame 21 fits with the positioning ring 22, thereby forming an annular closed cavity inside the rotating frame 21. Then, dry and dust-free compressed air is sent into the annular cavity of the rotating frame 21 through the air connector on the front side of the rotating frame 21. At this time, the compressed air performs spiral spraying on the outside of the conductor through multiple blowing nozzles 23 on the inner ring of the rotating frame 21, thereby removing dust, moisture and other substances between the conductors.

[0035] In this embodiment: the cooling mechanism 3 includes a spray frame 32, a conical shroud 31 is fixed at the center of the front end of the spray frame 32, a plurality of atomizing nozzles 33 are fixed on the inner wall of the rear side of the spray frame 32, a water inlet connector 34 is fixed on the outer side of the rear end of the conical shroud 31, a positioning ring 22 is fixed on the front side of the fixing frame 4, the front end of the spray frame 32 is fixed on the rear side of the fixing frame 4, the conical shroud 31 has a hollow structure inside, and the water inlet connector 34 is connected to the hollow structure of the conical shroud 31. By passing the wire core covered with the insulation layer through the conical shroud 31, the conical shroud 31 squeezes the insulation layer, making the insulation layer and the wire core fit more closely. At the same time, the extremely fine water mist sprayed by the atomizing nozzles 33 in the inner ring of the spray frame 32 is used to initially cool the insulation layer. Then the wire core is immersed in the water tank for thorough cooling to avoid the wire core separating from the insulation layer due to the temperature dropping too quickly.

[0036] Working principle: In use, the conductor core to be insulated is first passed through the extrusion head 14. Then, the rotating part of the rotary motor 26 drives the bevel gear 25 to rotate. The rotation of the bevel gear 25 drives the conical gear ring 24 and the rotating frame 21 to rotate outside the positioning ring 22. During this process, two sealing rings 5 ​​seal the position where the annular groove of the rotating frame 21 fits with the positioning ring 22, thereby forming an annular closed cavity inside the rotating frame 21. Then, dry and dust-free compressed air is sent into the annular cavity of the rotating frame 21 through the air connector on the front side of the rotating frame 21. At this time, the compressed air uses multiple blowing nozzles 23 on the inner ring of the rotating frame 21 to perform spiral blowing on the outside of the conductor core, thereby removing the wire core insulation. Dust, moisture, and other substances between the conductor cores are removed. Simultaneously, the rotating part of the extrusion motor 12 pushes the insulating material fed into the hopper by the extruder 11, while the extruder 11 heats and melts the internal insulating material, thereby extruding the melted insulating material from the extrusion head 14 and wrapping it around the outside of the conductor core. Then, by passing the wire core covered with the insulating layer through the conical cover 31, the conical cover 31 squeezes the insulating layer, making the insulating layer and the wire core fit more closely. At the same time, the atomizing nozzles 33 in the inner ring of the spray frame 32 spray extremely fine water mist to initially cool the covered insulating layer. Then, the wire core is immersed in a water tank for thorough cooling to prevent the temperature from dropping too quickly and causing the wire core and the insulating layer to separate.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An insulation layer coating device for cable production, comprising a coating mechanism (1), wherein the extrusion end of the coating mechanism (1) is provided with a fixing frame (4), characterized in that: It also includes a purging mechanism (2) and a cooling mechanism (3), wherein the purging mechanism (2) is located on the front side of the fixed frame (4) and the cooling mechanism (3) is located on the rear side of the fixed frame (4); The purging mechanism (2) includes a positioning ring (22), a rotating frame (21) is sleeved on the outside of the positioning ring (22), a plurality of arrayed purging nozzles (23) are fixed on the inner ring of the rotating frame (21), a conical toothed ring (24) is provided at the front end of the rotating frame (21), a bevel gear (25) is meshed on the front side of the conical toothed ring (24), and a rotary motor (26) is fixedly provided at the input end of the bevel gear (25). The cooling mechanism (3) includes a spray frame (32), a conical hood (31) is fixed at the center of the front end of the spray frame (32), a plurality of atomizing nozzles (33) are fixed on the inner wall of the rear side of the spray frame (32), and a water inlet connector (34) is fixed on the outer side of the rear end of the conical hood (31).

2. The insulation layer coating device for cable production according to claim 1, characterized in that: The outer ring of the rotating frame (21) has a concave annular groove, and the multiple purge nozzles (23) of the inner ring of the rotating frame (21) are all connected to the annular groove. The positioning ring (22) is located inside the annular groove.

3. The insulation layer coating device for cable production according to claim 1, characterized in that: The tapered gear ring (24) has multiple arc-shaped plates fixed to its rear end, and the rear end of each arc-shaped plate is fixedly connected to the front side of the rotating frame (21).

4. The insulation layer coating device for cable production according to claim 2, characterized in that: The positioning ring (22) is provided with sealing rings (5) on both sides for sealing the concave grooves of the rotating frame (21).

5. The insulation layer coating device for cable production according to claim 1, characterized in that: The positioning ring (22) is fixed to the front side of the fixed frame (4), and the front end of the spray frame (32) is fixed to the rear side of the fixed frame (4).

6. The insulation layer coating device for cable production according to claim 1, characterized in that: The conical cover (31) has a hollow structure inside, and the water inlet connector (34) is connected to the hollow structure of the conical cover (31).

7. The insulation layer coating device for cable production according to claim 1, characterized in that: The coating mechanism (1) includes an extruder (11), an extrusion motor (12) is fixedly installed at one end of the extruder (11), an extrusion head (14) is fixed at the other end of the extruder (11), a support (13) is fixed at the bottom of the extruder (11), and a feed hopper is provided at the top of the extruder (11).

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