Cable insulation layer coating device

Abstract

The invention, which relates to the technical field of cable preparation, discloses a cable insulation layer coating device comprising a substrate, and a pretreatment assembly, a coating assembly and a cooling molding assembly which are arranged on the substrate. The pretreatment assembly is used for removing water stains and impurities on the surface of the wire; the cooling and forming assembly comprises a second rail, a first guide rail and a second guide rail, the moving seat is arranged on the second track in a sliding mode and driven by a second air cylinder, and the moving seat is in an L shape; the guide sleeve penetrates through and is rotationally arranged on the vertical part of the moving seat, a first support and a second support are fixedly arranged on the outer wall of one side of the guide sleeve, the first support is provided with a first gas cooling assembly, and the second support is provided with a second gas cooling assembly; and a water body cooling assembly is fixedly arranged on the side, away from the guide sleeve, of the moving seat, the overall automation degree is high, and the prepared cable is good in quality.

Description

Technical Field

[0001] The present invention relates to the technical field of cable preparation, and in particular to a cable insulation layer covering device. Background Art

[0002] In the field of cable manufacturing technology, the quality of the insulation coating directly determines the electrical performance and service life of the cable. Current cable insulation coating systems typically use a single cooling method, such as direct water cooling. While water cooling can quickly absorb heat, the rapid cooling process can easily cause thermal stress within the insulation layer, leading to microcracks.

[0003] More critically, traditional designs fail to actively compensate for the sagging tendency of the insulation layer (under the influence of gravity) before the insulation layer is fully cured. This results in eccentricity between the insulation layer and the conductor, requiring additional corrections in subsequent steps. This increases process complexity and makes it difficult to fundamentally solve the concentricity control problem. Furthermore, traditional coating devices lack effective pre-treatment of the conductor. Residual water stains or metal shavings on the conductor can cause the insulation layer to lose adhesion, similarly leading to eccentricity between the insulation layer and the conductor.

[0004] Therefore, it is necessary to provide a cable insulation layer covering device to solve the above problems. Summary of the Invention

[0005] To solve the above problems, the present invention provides the following technical solution: a cable insulation layer covering device, comprising: A substrate and a pretreatment component, a coating component and a cooling and forming component arranged on the substrate; The pretreatment component is used to remove water stains and impurities on the surface of the wire; The cooling molding component includes: A second track is fixed on the base plate; a movable seat, slidably disposed on the second track and driven by the second cylinder, wherein the movable seat is L-shaped; A guide sleeve, which passes through and is rotatably arranged on the vertical portion of the movable base, wherein a first bracket and a second bracket are fixedly provided on an outer wall of one side of the guide sleeve, wherein the first bracket is provided with a first gas cooling assembly, and the second bracket is provided with a second gas cooling assembly; A water cooling component is fixedly provided on a side of the movable seat away from the guide sleeve.

[0006] Furthermore, preferably, the water cooling component includes an infiltration tank, and the infiltration tank is used to accommodate cooling liquid.

[0007] Furthermore, preferably, the first gas cooling component includes: A first air supply cylinder is fixedly mounted on a side of the first bracket, wherein one end of the first air supply cylinder is a closed end and the other end is an open end; a first gas seat connected to the open end of the first gas supply cylinder, the first gas seat being an arc-shaped structure coaxial with the conductor and provided with a gas nozzle; The side of the first air supply cylinder is connected to an air catching groove.

[0008] Furthermore, preferably, the second gas cooling component includes: A second air supply cylinder is fixedly mounted on a side of the second bracket and has open ends at both ends; A second gas seat is connected to an end of the second gas supply cylinder close to the conductor, the second gas seat is an arc-shaped structure coaxial with the conductor and is provided with a gas nozzle; a second air supply pipe, sealingly and slidingly connected to the second air supply cylinder; The lifting cylinder is fixed to the side of the movable seat through a mounting plate, and the output end thereof is connected to the second air supply pipe.

[0009] Furthermore, preferably, a ring gear is fixedly provided on the outer periphery of one side of the guide sleeve on which the first bracket and the second bracket are installed, and the movable seat is rotatably provided with a driving wheel meshing with the ring gear, and the driving wheel is driven by a second motor.

[0010] Furthermore, preferably, the covering component includes: The auger feeding pipe assembly comprises a pipe body and an auger rotatably disposed in the pipe body, wherein the auger is driven by a first motor; A covering head connected to the discharge end of the tube body; The feed trough is connected and arranged on the side of the tube body.

[0011] Furthermore, preferably, the pre-processing component includes: A lifting plate is fixed on the base plate; A plurality of guide wheels are distributed on the lifting plate at intervals along the axial direction of the conductor; Two clamps are symmetrically distributed on both sides of the wire and are slidably arranged on a first track fixed to the lifting plate; A gear is rotatably disposed on the lifting plate and located between the two clamps, with racks meshing on both sides of the gear, and each rack is connected to a corresponding clamp; The first cylinder is used to drive one of the clamps to move along the first track.

[0012] Furthermore, preferably, a cavity is provided in the middle of the chuck, and air is supplied to the cavity through a first air supply pipe. A V-shaped working surface is provided on the chuck near the wire side, and the V-shaped working surface is distributed with air holes connected to the cavity.

[0013] Compared with the prior art, the present invention provides a cable insulation layer covering device, which has the following beneficial effects: In this invention, a progressive temperature gradient cooling system is constructed through the synergistic effects of gas cooling and water cooling. The gas cooling stage utilizes ambient air or low-temperature gas for pre-cooling, preventing internal stress in the insulation layer caused by rapid cooling. Subsequently, the water cooling component achieves efficient heat exchange through an infiltration tank, rapidly solidifying the material. Furthermore, the dynamic air cushion formed by the airflow in the second gas cooling component can offset the drooping tendency caused by gravity to a certain extent, optimizing the product's geometric accuracy.

[0014] In the present invention, the pretreatment component highly integrates the synchronous centering positioning and pneumatic cleaning functions. The rack and pinion transmission realizes 1:1 synchronous movement of the double chucks to ensure the precise centering of the wire. The V-shaped working surface integrates radial air holes and uses the Coanda effect to efficiently remove impurities on the surface of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of a cable insulation layer covering device; Figure 2 This is a schematic diagram of the top view of a cable insulation layer covering device; Figure 3 It is a schematic diagram of the three-dimensional structure of a cable insulation layer covering device; Figure 4 It is a schematic diagram of the three-dimensional structure of a pretreatment component in a cable insulation layer covering device; Figure 5 It is a schematic diagram of the three-dimensional structure of a cooling and forming component in a cable insulation layer covering device; In the picture: 1. Substrate; 2. Pretreatment component; 3. Coating component; 4. Cooling molding component; 21. Guide wheel; 22. Chuck; 23. First track; 24. First air supply pipe; 25. Rack; 26. Gear; 27. First cylinder; 28. Lifting plate; 31. Auger feed pipe assembly; 32. Coating head; 33. Feed trough; 34. First motor; 41. Second track; 42. Moving seat; 43. Second cylinder; 44. Guide sleeve; 45. First bracket; 46. First air supply cylinder; 47. First air seat; 48. Air capture trough; 49. Second air supply cylinder; 410. Second air seat; 411. Second air supply pipe; 412. Lifting cylinder; 413. Mounting plate; 414. Second motor; 415. Driving wheel; 416. Ring gear; 417. Immersion tank. DETAILED DESCRIPTION

[0016] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned description of the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0017] Example: Please refer to Figure 1-Figure 5 In an embodiment of the present invention, a cable insulation layer covering device is provided, comprising: A substrate 1 and a pretreatment component 2, a coating component 3 and a cooling and forming component 4 arranged on the substrate 1; The pretreatment component 2 is used to remove water stains and impurities on the surface of the wire; The cooling and forming assembly 4 includes: The second track 41 is fixed on the base plate 1; A movable base 42 is slidably disposed on the second track 41 and driven by a second cylinder 43 . The movable base 42 is L-shaped. A guide sleeve 44 is provided through and rotatably mounted on the vertical portion of the movable base 42. A first bracket 45 and a second bracket are fixedly mounted on an outer wall of one side of the guide sleeve 44. The first bracket 45 is provided with a first gas cooling assembly, and the second bracket is provided with a second gas cooling assembly. A water cooling component is fixedly provided on a side of the movable seat 42 away from the guide sleeve 44 .

[0018] During implementation, the conductor passes through the pretreatment assembly 2 to remove surface impurities, then enters the coating assembly 3 to complete the insulation layer extrusion, and then enters the cooling and molding assembly 4. During the gas cooling stage, the movable seat 42 can be selectively adjusted to adjust the gas cooling insertion point. The water cooling assembly then wraps the cable, utilizing the high specific heat capacity of water to quickly absorb excess heat, allowing the insulation layer to fully solidify and set.

[0019] In other words, a temperature gradient cooling system is achieved through the combination of gas cooling (first and second gas cooling components) and water cooling (water cooling component). Gas cooling, as the initial cooling stage, prevents internal stress or cracking in the insulation material caused by a sudden drop in temperature. Water cooling, as the final cooling stage, rapidly solidifies the material and improves molding efficiency.

[0020] The water cooling component includes an infiltration tank 417, and the infiltration tank 417 is used to accommodate cooling liquid.

[0021] For example, during implementation, a sprinkler head can be constructed on the top of the infiltration tank 417. In addition, since one end of the infiltration tank 417 is fixed on the movable seat 42, a water receiving tank can be configured at the bottom of the other end of the infiltration tank 417 to collect the cooling liquid in the infiltration tank 417.

[0022] In this embodiment, the first gas cooling component includes: A first air supply cylinder 46 is fixed to the side of the first bracket 45. One end of the first air supply cylinder 46 is closed and the other end is open. A first gas seat 47 is connected to the open end of the first gas supply cylinder 46. The first gas seat 47 is an arc-shaped structure coaxial with the conductor and is provided with a gas nozzle; A side of the first air supply cylinder 46 is connected to an air catching groove 48 .

[0023] The rotation of the air capture groove 48 directly captures ambient air, which is then evenly ejected through the curved structure of the first air seat 47. This creates a self-contained cooling system that circulates air without the need for an additional air pump. When the ambient temperature is suitable, natural cold air can be used for cooling, significantly reducing energy consumption.

[0024] The arc-shaped structure of the first gas seat 47 is coaxial with the cable, and cooperates with the rotation of the guide sleeve 44 to make the gas spray out in a 360° circle, ensuring that the surface temperature of the insulation layer drops evenly, reducing internal stress or deformation caused by uneven cooling, and eliminating the cooling blind spot of traditional fixed nozzles.

[0025] In this embodiment, the second gas cooling component includes: A second air supply cylinder 49 is fixed to the side of the second bracket and both ends of the second air supply cylinder 49 are open ends; The second gas seat 410 is connected to the end of the second gas supply cylinder 49 close to the conductor. The second gas seat 410 is an arc-shaped structure coaxial with the conductor and is provided with a gas nozzle; The second air supply pipe 411 is sealingly and slidingly connected to the second air supply cylinder 49; The lifting cylinder 412 is fixed to the side of the movable seat 42 via a mounting plate 413 , and its output end is connected to the second air supply pipe 411 .

[0026] When special attention needs to be paid to the concentricity of the insulation layer and the conductor, the second air supply pipe 411 is driven by the lifting cylinder 412, and the position of the second air supply pipe 411 can be adjusted in real time, so that the second air supply pipe 411 is connected to the second air supply cylinder 49. After the high-pressure gas is ejected from the second air seat 410, an "air cushion" will be formed at the bottom of the insulation layer, which can offset the sagging trend caused by gravity to a certain extent, thereby improving the concentricity of the insulation layer and the conductor.

[0027] In order to drive the guide sleeve 44 , the guide sleeve 44 is installed with a first bracket 45 and a second bracket, and a ring gear 416 is fixed on the outer periphery of one side. The movable seat 42 is rotatably provided with a driving wheel 415 engaged with the ring gear 416 , and the driving wheel 415 is driven by a second motor 414 .

[0028] Through the meshing transmission of the ring gear 416 and the driving wheel 415, the rotation angle and speed of the guide sleeve 44 can be accurately controlled by the second motor 414, thereby adjusting the gas cooling component and achieving cooling requirements of different modes.

[0029] In addition, the gear meshing has the characteristics of fixed transmission ratio and no elastic sliding. Combined with the closed-loop control of the servo motor (the second motor 414), it can achieve a fast response of the rotation speed and adapt to different cooling process requirements.

[0030] In this embodiment, the covering component 3 includes: The auger feeding pipe assembly 31 includes a pipe body and an auger rotatably disposed in the pipe body, and the auger is driven by a first motor 34; The covering head 32 is connected to the discharge end of the tube body; The feed trough 33 is connected to the side of the tube body.

[0031] In specific applications, the length of the auger feed tube assembly 31 can be appropriately increased based on the size of the workshop. Generally, the auger feed tube assembly 31 is pre-installed with a heating mechanism, so increasing the length of the auger feed tube assembly 31 ensures that the material is adequately heated. Specifically, the molten material passes through the end of the auger feed tube assembly 31, is evenly extruded through the die of the coating head 32, and is wrapped around the pre-treated wire.

[0032] In this embodiment, the pre-processing component 2 includes: A lifting plate 28 is fixed on the base plate 1; A plurality of guide wheels 21 are distributed on the lifting plate 28 at intervals along the axial direction of the conductor; Two clamps 22 are symmetrically distributed on both sides of the wire and are slidably arranged on a first track 23 fixed to the lifting plate 28; A gear 26 is rotatably mounted on the lifting plate 28 and located between the two clamps 22. A rack 25 is engaged on both sides of the gear 26. Each rack 25 is connected to a corresponding clamp 22. The first cylinder 27 is used to drive one of the clamps 22 to move along the first track 23 .

[0033] During operation, when the first cylinder 27 pushes one chuck 22, the rack 25 drives the gear 26 to rotate, while the other rack 25 moves in the opposite direction, causing the two chucks to move synchronously toward each other at a 1:1 speed ratio, creating a "self-centering" effect. In other words, through the linkage mechanism of the gear 26 and rack 25, the two chucks 22 achieve completely synchronized movement toward and away from each other, ensuring that the conductor is precisely positioned at the center, thereby providing auxiliary straightening of the conductor.

[0034] In addition, a cavity is provided in the middle of the chuck 22, and air is supplied to the cavity through a first air supply pipe 24. The chuck 22 is provided with a V-shaped working surface close to the wire side, and the V-shaped working surface is distributed with air holes connected to the cavity.

[0035] In other words, the air cleaning function is directly integrated into the chuck 22, eliminating the need for separate air knives or brushes, significantly shortening the pretreatment process. When the first air cylinder 27 drives the chuck 22 away from the conductor, compressed air enters the cavity through the first air supply pipe 24 and is ejected from the vents. The V-shaped working surface diffuses the airflow radially, effectively covering the entire circumference of the conductor. For example, the V-angle is designed to be 120°-150°, creating a Coanda effect on the conductor surface, allowing the airflow to adhere to and remove the liquid film.

[0036] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cable insulation layer covering device, characterized in that: include: A substrate (1), and a pretreatment component (2), a coating component (3), and a cooling and forming component (4) arranged on the substrate (1); The pretreatment component (2) is used to remove water stains and impurities on the surface of the wire; The cooling and forming assembly (4) comprises: A second track (41) is fixed on the base plate (1); A movable seat (42) is slidably disposed on the second track (41) and driven by a second cylinder (43), wherein the movable seat (42) is L-shaped; A guide sleeve (44) is provided through and rotatably disposed on the vertical portion of the movable seat (42); a first bracket (45) and a second bracket are fixedly provided on an outer wall of one side of the guide sleeve (44); the first bracket (45) is provided with a first gas cooling component, and the second bracket is provided with a second gas cooling component; A water cooling component is fixedly provided on a side of the movable seat (42) away from the guide sleeve (44).

2. The cable insulation layer covering device according to claim 1, characterized in that: The water cooling component comprises an infiltration tank (417), and the infiltration tank (417) is used to accommodate cooling liquid.

3. The cable insulation layer covering device according to claim 1, characterized in that: The first gas cooling component comprises: A first air supply cylinder (46) is fixedly mounted on a side of the first bracket (45), wherein one end of the first air supply cylinder (46) is a closed end and the other end is an open end; A first gas seat (47) is connected to the open end of the first gas supply cylinder (46), and the first gas seat (47) is an arc-shaped structure coaxial with the conductor and is provided with a gas nozzle; The side of the first air supply cylinder (46) is connected to an air catching groove (48).

4. The cable insulation layer covering device according to claim 1, characterized in that: The second gas cooling component comprises: A second air supply cylinder (49) is fixedly mounted on a side portion of the second bracket and both ends of the second air supply cylinder (49) are open ends; A second gas seat (410) is connected to an end of the second gas supply cylinder (49) close to the conductor, and the second gas seat (410) is an arc-shaped structure coaxial with the conductor and is provided with a gas nozzle; A second air supply pipe (411) is sealingly and slidingly connected to the second air supply cylinder (49); The lifting cylinder (412) is fixed to the side of the movable seat (42) via a mounting plate (413), and its output end is connected to the second air supply pipe (411).

5. The cable insulation layer covering device according to claim 3, characterized in that: The guide sleeve (44) is provided with a first bracket (45) and a second bracket, and a ring gear (416) is fixedly provided on one side of the outer periphery. The movable seat (42) is rotatably provided with a driving wheel (415) meshing with the ring gear (416). The driving wheel (415) is driven by a second motor (414).

6. The cable insulation layer covering device according to claim 1, characterized in that: The covering component (3) comprises: An auger feeding pipe assembly (31) comprises a pipe body and an auger rotatably disposed in the pipe body, wherein the auger is driven by a first motor (34); A covering head (32) connected to the discharge end of the tube body; A feed trough (33) is provided in communication with the side of the tube body.

7. The cable insulation layer covering device according to claim 1, characterized in that: The pre-processing component (2) comprises: A lifting plate (28) is fixed on the base plate (1); A plurality of guide wheels (21) are distributed on the lifting plate (28) at intervals along the axial direction of the conductor; Two clamps (22) are symmetrically distributed on both sides of the wire and are slidably arranged on a first track (23) fixed to the lifting plate (28); A gear (26) is rotatably mounted on the lifting plate (28) and is located between the two clamps (22). Racks (25) are respectively engaged on both sides of the gear (26), and each rack (25) is connected to a corresponding clamp (22). The first cylinder (27) is used to drive one of the clamps (22) to move along the first track (23).

8. The cable insulation layer covering device according to claim 7, characterized in that: A cavity is provided in the middle of the chuck (22), and air is supplied to the cavity through a first air supply pipe (24). A V-shaped working surface is provided on the chuck (22) near the conductor side, and each of the V-shaped working surfaces is provided with air vents communicating with the cavity.

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