A shielding layer extrusion device for preventing a core from being eccentric

Abstract

The utility model is suitable for cable production technical field provides a kind of shielding layer extruding device that prevents core eccentricity, including extruder and two eccentricity adjusting mechanisms, the bottom end of the discharge port outside extruder is provided with support frame, the top of support frame is fixedly connected with extrusion head, and extrusion head is installed on extruder and its feed port is communicated with the discharge port of extruder.The shielding layer extruding device that prevents core eccentricity, by setting two eccentricity adjusting mechanisms, the device can be adjusted to the horizontal and vertical direction of core when using, to prevent eccentricity problem, when adjusting, first threaded rod and second threaded rod in rotating mechanism can be rotated respectively, both can drive guide pulley to move horizontally and vertically, thereby the height or horizontal position of cable line supported by guide pulley is driven, thereby avoiding the condition that the thickness of shielding layer is not same, improve the quality of final cable product.

Description

Technical Field

[0001] This utility model belongs to the field of cable production technology, and in particular relates to a shielding layer extrusion device for preventing wire core eccentricity. Background Technology

[0002] The basic structure of an electric wire mainly includes a conductor, an insulation layer, a shielding layer, and a protective layer. The conductor is the conductive part of the wire, responsible for transmitting electrical energy. The insulation layer isolates the conductor from the outside world, ensuring the safe transmission of electrical energy. The shielding layer (common in high-voltage cables) is used to reduce electromagnetic interference. The protective layer prevents the cable from being affected by external impurities and moisture, as well as from being directly damaged by external forces.

[0003] The cable shielding layer needs to be extruded onto the outer surface of the insulation layer using extrusion equipment. Current extrusion equipment technology is very advanced, but during the extrusion process, the cable's conveying structure is often not adjustable. This may cause the cable axis to be misaligned with the axis of the extrusion head, resulting in the cable core being off-center and affecting the final shielding effect. Utility Model Content

[0004] This invention provides a shielding extrusion device to prevent wire core eccentricity, aiming to solve the problem that the cable conveying structure is often unadjustable, which may cause the cable axis to be misaligned with the axis of the extrusion head, resulting in wire core eccentricity and affecting the final shielding effect.

[0005] This utility model is implemented as follows: a shielding layer extrusion device for preventing wire core eccentricity includes an extruder and two eccentricity adjustment mechanisms.

[0006] The extruder has a support frame at the bottom of the outlet, and an extrusion head is fixedly connected to the top of the support frame. The extrusion head is installed on the extruder and its inlet is connected to the outlet of the extruder. The two eccentric adjustment mechanisms are respectively located on both sides of the extrusion head.

[0007] Both of the eccentric adjustment mechanisms have the same structure. One of the eccentric adjustment mechanisms includes a rectangular box with an open top, which is horizontally arranged along the width direction of the extruder head. A first threaded rod is rotatably connected to the inside of the box. A first threaded sleeve is threadedly connected to the outer surface of the first threaded rod. A movable seat that is slidably connected to the outer surface of the first threaded sleeve is fixedly connected to the outer surface of the first threaded sleeve. A guide wheel that can be adjusted in the height direction is provided above the movable seat.

[0008] Preferably, a vertical plate is fixedly connected to the upper surface of the movable seat, a top plate is fixedly connected to the top of the vertical plate, a second threaded rod is vertically rotatably connected between the top plate and the movable seat, a second threaded sleeve is threadedly connected to the outer surface of the second threaded rod, an adjusting seat is fixedly connected to the outer surface of the vertical plate, a wheel frame is fixedly connected to the upper surface of the adjusting seat, and a guide wheel is rotatably connected to the top of the wheel frame.

[0009] Preferably, one end of the first threaded rod rotatably penetrates one end surface of the box and extends outward, and the top end of the second threaded rod rotatably penetrates the top plate and extends upward. A swivel cap is fixedly connected to both the outer surface of the first threaded rod located outside the box and the outer surface of the top end of the second threaded rod.

[0010] Preferably, the support frame has an extension crossbeam that extends to both sides of the extrusion head at both ends, and a front fixed plate and a rear fixed plate are respectively fixedly connected to the upper surface of the extension crossbeam and located on both sides of the extrusion head. The two eccentric adjustment mechanisms are respectively disposed on the upper surfaces of the front fixed plate and the rear fixed plate.

[0011] Preferably, a hollow device frame is fixedly connected between the eccentric adjustment mechanism and the extrusion head on the upper surface of the front fixed plate. Both sides of the device frame are horizontally through-holes. Multiple spray heads are provided at the top inside the device frame. Multiple leakage holes are vertically through-holes on the upper surface of the front fixed plate inside the device frame.

[0012] Preferably, a water receiving tank with an open top is provided below the leakage hole, a liquid pump is provided on the outside of the water receiving tank, the inlet of the liquid pump is connected to a liquid suction pipe, the liquid suction pipe extends to the bottom of the water receiving tank, the outlet of the liquid pump is connected to a liquid delivery pipe, the other end of the liquid delivery pipe is connected to a distributor, and the multiple outlets of the distributor are respectively connected to the multiple spray heads through the distributor pipe.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a shielding layer extrusion device to prevent wire core eccentricity. By setting two eccentricity adjustment mechanisms, the device can adjust the horizontal and vertical directions of the wire core during use, thereby preventing eccentricity. During adjustment, the first and second threaded rods in the mechanism can be rotated respectively, which can drive the guide wheel to move horizontally and vertically, thereby affecting the height or horizontal position of the cable supported by the guide wheel. This avoids uneven shielding layer thickness and improves the quality of the final cable product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the support frame and the equipment above it in this utility model;

[0017] Figure 3 This is a schematic diagram of the eccentric adjustment mechanism in this utility model.

[0018] In the diagram: 1-Extruder, 2-Support frame, 3-Extrusion head, 4-Extension crossbar, 5-Front fixed plate, 6-Rear fixed plate, 7-Eccentric adjustment mechanism, 71-Box body, 72-First threaded rod, 73-Modible seat, 74-Swivel cap, 75-Upright plate, 76-Top plate, 77-Second threaded rod, 78-Adjusting seat, 79-Wheel frame, 710-Guide wheel, 8-Device frame, 9-Connecting port, 10-Water tank, 11-Liquid pump, 12-Liquid delivery pipe, 13-Diverter, 14-Diverter pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a shielding layer extrusion device for preventing wire core eccentricity, including an extruder 1 and two eccentricity adjustment mechanisms 7;

[0021] A support frame 2 is provided at the bottom of the outlet of the extruder 1. An extrusion head 3 is fixedly connected to the top of the support frame 2. The extrusion head 3 is installed on the extruder 1 and its inlet is connected to the outlet of the extruder 1. Two eccentric adjustment mechanisms 7 are respectively provided on both sides of the extrusion head 3.

[0022] The two eccentric adjustment mechanisms 7 have the same structure. One of the eccentric adjustment mechanisms 7 includes a rectangular box 71 with an open top, which is horizontally arranged along the width direction of the extruder head 3. A first threaded rod 72 is rotatably connected to the inside of the box 71. A first threaded sleeve is threadedly connected to the outer surface of the first threaded rod 72. A movable seat 73, which is slidably connected to the outer surface of the first threaded sleeve, is fixedly connected to the outer surface of the first threaded sleeve. A guide wheel 710 that can be adjusted in the height direction is provided above the movable seat 73.

[0023] A vertical plate 75 is fixedly connected to the upper surface of the movable seat 73. A top plate 76 is fixedly connected to the top of the vertical plate 75. A second threaded rod 77 is vertically rotatably connected between the top plate 76 and the movable seat 73. A second threaded sleeve is threadedly connected to the outer surface of the second threaded rod 77. An adjusting seat 78 is slidably connected to the outer surface of the vertical plate 75. A wheel frame 79 is fixedly connected to the upper surface of the adjusting seat 78. A guide wheel 710 is rotatably connected to the top of the wheel frame 79.

[0024] In this embodiment, when the device is in use, the position of the cable on both sides of the extrusion head 3 can be adjusted by the eccentric adjustment mechanisms 7 on both sides to prevent the cable core from becoming eccentric. In actual adjustment, rotating the first threaded rod 72 will drive the first threaded sleeve on its outer surface to move along its length, and simultaneously drive the movable seat 73 to move, so that the movable seat 73 can move in an adjustable horizontal direction, thereby changing the horizontal position of the guide wheel 710 and simultaneously adjusting the horizontal position of the cable. When rotating the second threaded rod 77, the second threaded sleeve on its outer surface will drive the adjustment seat 78 fixedly connected to it to move in the height direction, thereby driving the guide wheel 710 and the cable to move in the height direction. The two adjustment directions cooperate to adjust the cable to any position, thereby preventing the problem of the core being eccentric.

[0025] During the process of the cable passing through the extrusion head 3, the extruder 1 continuously feeds the molten shielding material into the extrusion head 3. Then, under the action of the extrusion chamber inside the extrusion head 3, it forms a tube and is discharged from one end of the extrusion head 3. During the discharge process, it can adhere to the outer surface of the cable to form a shielding layer. Both the extruder 1 and the extrusion head 3 are mature existing technologies, and will not be described in detail here.

[0026] Furthermore, one end of the first threaded rod 72 rotatably penetrates one end surface of the box 71 and extends outward, and the top end of the second threaded rod 77 rotatably penetrates the top plate 76 and extends upward. The outer surface of the first threaded rod 72 and located outside the box 71, and the top outer surface of the second threaded rod 77 are both fixedly connected with a swivel cap 74.

[0027] In this embodiment, the rotating cap 4 facilitates the rotation of the first threaded rod 72 and the second threaded rod 77, making it a labor-saving component.

[0028] Furthermore, the middle of the support frame 2 is horizontally fixedly connected with an extension crossbeam 4 extending to both sides of the extrusion head 3. The upper surface of the extension crossbeam 4 and the two sides of the extrusion head 3 are horizontally fixedly connected with a front fixed plate 5 and a rear fixed plate 6, respectively. Two eccentric adjustment mechanisms 7 are respectively set on the upper surfaces of the front fixed plate 5 and the rear fixed plate 6.

[0029] A hollow device frame 8 is fixedly connected between the eccentric adjustment mechanism 7 and the extrusion head 3 on the upper surface of the front fixed plate 5. Both sides of the device frame 8 are horizontally opened with through holes 9. Multiple spray heads are provided at the top inside the device frame 8. Multiple leakage holes are vertically opened on the upper surface of the front fixed plate 5 and inside the device frame 8.

[0030] Below the leakage hole is a water receiving tank 10 with an open top. A liquid pump 11 is installed on the outside of the water receiving tank 10. The inlet of the liquid pump 11 is connected to a liquid suction pipe, which extends to the bottom of the water receiving tank 10. The outlet of the liquid pump 11 is connected to a liquid delivery pipe 12. The other end of the liquid delivery pipe 12 is connected to a distributor 13. Multiple outlets of the distributor 13 are connected to multiple spray heads through distributor pipes 14.

[0031] In this embodiment, the liquid pump 11 continuously pumps water from inside the water tank 10 into multiple spray heads through the liquid extraction pipe, the liquid delivery pipe 12, and multiple diversion pipes 14. The water is then sprayed down through the multiple spray heads. When the cable passes through the inside of the device frame 8, it will be rapidly cooled by the water sprayed from the spray heads, causing the temperature of the shielding layer on its outer surface to drop rapidly and firmly adhere to the outer surface of the cable insulation layer. This prevents the shielding layer from falling off in subsequent operations due to unstable adhesion. The water sprayed from the spray heads will eventually leak down through multiple leakage holes on the front fixing plate 5 and return to the inside of the water tank 10, thus repeating the cycle.

[0032] The working principle and usage process of this utility model are as follows: After the utility model is installed, when using the device, the position of the cable on both sides of the extrusion head 3 can be adjusted by the eccentric adjustment mechanism 7 on both sides to prevent the cable core from becoming eccentric. In actual adjustment, rotating the first threaded rod 72 will drive the first threaded sleeve on its outer surface to move along its length direction, and simultaneously drive the movable seat 73 to move, so that the movable seat 73 can move in an adjustable horizontal direction, thereby changing the horizontal position of the guide wheel 710, and thus simultaneously adjusting the horizontal position of the cable. When rotating the second threaded rod 77, the second threaded sleeve on its outer surface will drive the adjustment seat 78 fixedly connected to it to move in the height direction, thereby driving the guide wheel 710 and the cable to move in the height direction. The two adjustment directions cooperate with each other to adjust the cable to any position, thereby preventing the problem of the core being eccentric.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shielding layer extrusion device for preventing wire core eccentricity, characterized in that: It includes an extruder (1) and two eccentric adjustment mechanisms (7); The extruder (1) has a support frame (2) at the bottom of the outlet. The top of the support frame (2) is fixedly connected to an extrusion head (3). The extrusion head (3) is installed on the extruder (1) and its inlet is connected to the outlet of the extruder (1). The two eccentric adjustment mechanisms (7) are respectively located on both sides of the extrusion head (3). Both of the eccentric adjustment mechanisms (7) have the same structure. One of the eccentric adjustment mechanisms (7) includes a rectangular box (71) with an open top, which is horizontally arranged along the width direction of the extruder (3). The box (71) is laterally rotatably connected to a first threaded rod (72). The outer surface of the first threaded rod (72) is threadedly connected to a first threaded sleeve. The outer surface of the first threaded sleeve is fixedly connected to a movable seat (73) that is slidably connected to the inside of the box (71). A guide wheel (710) that can be adjusted in the height direction is provided above the movable seat (73).

2. The shielding layer extrusion device for preventing wire core eccentricity as described in claim 1, characterized in that: A vertical plate (75) is fixedly connected to the upper surface of the movable seat (73). A top plate (76) is fixedly connected to the top of the vertical plate (75) in the horizontal direction. A second threaded rod (77) is vertically rotatably connected between the top plate (76) and the movable seat (73). A second threaded sleeve is threadedly connected to the outer surface of the second threaded rod (77). An adjusting seat (78) is fixedly connected to the outer surface of the vertical plate (75) on the outer surface of the second threaded sleeve. A wheel frame (79) is fixedly connected to the upper surface of the adjusting seat (78). A guide wheel (710) is rotatably connected to the top of the wheel frame (79) in the horizontal direction.

3. The shielding layer extrusion device for preventing wire core eccentricity as described in claim 2, characterized in that: One end of the first threaded rod (72) rotatably passes through one end surface of the box (71) and extends outward. The top end of the second threaded rod (77) rotatably passes through the top plate (76) and extends upward. The outer surface of the first threaded rod (72) and the outer surface of the top end of the second threaded rod (77) are both fixedly connected with a swivel cap (74).

4. The shielding layer extrusion device for preventing wire core eccentricity as described in claim 1, characterized in that: The support frame (2) has an extension crossbeam (4) that extends to both sides of the extrusion head (3) at both ends. The upper surface of the extension crossbeam (4) and the two sides of the extrusion head (3) are respectively fixedly connected to a front fixed plate (5) and a rear fixed plate (6). The two eccentric adjustment mechanisms (7) are respectively set on the upper surfaces of the front fixed plate (5) and the rear fixed plate (6).

5. The shielding layer extrusion device for preventing wire core eccentricity as described in claim 4, characterized in that: A hollow device frame (8) is fixedly connected between the eccentric adjustment mechanism (7) and the extrusion head (3) on the upper surface of the front fixing plate (5). Both sides of the device frame (8) are horizontally through-holes (9). Multiple spray heads are provided at the top inside the device frame (8). Multiple leakage holes are vertically through-holes on the upper surface of the front fixing plate (5) and inside the device frame (8).

6. The shielding layer extrusion device for preventing wire core eccentricity as described in claim 5, characterized in that: Below the leakage hole is a water receiving tank (10) with an open top. A liquid pump (11) is provided on the outside of the water receiving tank (10). The inlet of the liquid pump (11) is connected to a liquid suction pipe, which extends to the bottom of the water receiving tank (10). The outlet of the liquid pump (11) is connected to a liquid delivery pipe (12). The other end of the liquid delivery pipe (12) is connected to a distributor (13). Multiple outlets of the distributor (13) are connected to multiple spray heads through a distributor pipe (14).

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