A guiding and positioning device for synchronous insulation extrusion of multi-strand cables

Abstract

This utility model relates to the field of cable manufacturing technology and discloses a guiding and positioning device for synchronous insulation extrusion of multi-strand cables. It includes a mounting base, a housing fixedly connected to the top of the mounting base, and an L-shaped lifting plate slidably fitted onto the top of the housing. A strip-shaped hole adapted to the L-shaped lifting plate is opened on the top of the housing. A connecting block is fixedly connected to the top of the L-shaped lifting plate, and a mounting ring is fixedly connected to the top of the connecting block. Three positioning mechanisms are equidistantly arranged on the top of the mounting ring. Each positioning mechanism includes a threaded rod screwed onto the mounting ring, and a screw nut adapted to the threaded rod is fixedly fitted onto the mounting ring. A connecting seat is rotatably connected to one end of the threaded rod located inside the mounting ring. This utility model improves the positioning accuracy during insulation extrusion of multi-strand cables, ensuring a stable and uniform relative distance between the three strands. It effectively avoids problems such as uneven insulation thickness and insufficient filling caused by core misalignment, convergence, or dispersion, thus guaranteeing the electrical performance and structural strength of the cable.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, and in particular to a guiding and positioning device for synchronous insulation extrusion of multi-strand cables. Background Technology

[0002] In the production and processing of wires and cables, the insulation extrusion of multi-strand cables is a crucial process to ensure their electrical and safety performance. This involves using extrusion equipment to uniformly coat the outside of the multi-strand conductors with insulating material. During this process, the guiding and positioning accuracy of the multi-strand cable directly affects the uniformity of the insulation layer thickness, concentricity, and the relative positional stability of each strand.

[0003] In traditional production, the guidance of multi-strand cables often relies on simple through holes or branch plates, lacking a targeted synchronous positioning structure. Wire core misalignment can cause uneven insulation thickness, increasing the risk of localized breakdown; wire core convergence can lead to insufficient insulation material filling, affecting the overall structural strength. Therefore, a guiding and positioning device for synchronous insulation extrusion of multi-strand cables is developed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a guiding and positioning device for synchronous insulation extrusion of multi-strand cables.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A guiding and positioning device for synchronous insulation extrusion of multi-strand cables includes a mounting base. A housing is fixedly connected to the top of the mounting base, and an L-shaped lifting plate is slidably fitted on the top of the housing. A strip-shaped hole adapted to the L-shaped lifting plate is opened on the top of the housing. A connecting block is fixedly connected to the top of the L-shaped lifting plate, and a mounting ring is fixedly connected to the top of the connecting block. Three positioning mechanisms are equidistantly arranged on the top of the mounting ring. Each positioning mechanism includes a threaded rod screwed onto the mounting ring. A screw nut adapted to the threaded rod is fixedly fitted on the mounting ring. One end of the threaded rod located inside the mounting ring is rotatably connected to a connecting seat, and the other end of the threaded rod is fixedly connected to a handwheel. Guide rods are fixedly connected to both ends of the connecting seat near the edge of the mounting ring. The other end of each guide rod slides through the mounting ring and is fixedly connected to a protrusion. A round hole adapted to the guide rod is opened on the mounting ring. The three positioning mechanisms can respectively position the three cables, ensuring that the relative positions of the cables are fixed when they enter the extrusion machine and will not entangle.

[0006] Preferably, the positioning mechanism further includes a fixed ring fixedly connected to the side of the connecting seat near the center of the mounting ring, and a threaded ring is screwed into the circumference of the fixed ring. The side where the threaded ring and the fixed ring meet is provided with a matching threaded groove. The outer wall of the threaded ring is provided with anti-slip texture, and a ceramic ring is fixedly connected to the inner wall of the threaded ring. The ceramic ring is replaceable, which facilitates the positioning of cables of different thicknesses.

[0007] Preferably, the L-shaped lifting plate is fixedly connected to sliding rods at both ends of the bottom outside the box, and each sliding tube slides through the top of the box. Sliding sleeves adapted to the sliding rods are fixedly fitted at both ends of the top of the box, and oblique holes are opened at the vertical part of the L-shaped lifting plate.

[0008] Preferably, a positioning rod is fixedly connected between the two sides of the inner wall of the top of the box, and a screw block is slidably sleeved on the positioning rod. The screw block has a round hole that matches the positioning rod. A protruding rod is fixedly connected to the side of the screw block near the inclined hole, and the protruding rod is slidably connected in the inclined hole.

[0009] Preferably, a lead screw is rotatably connected between the two ends of the top of the inner wall of the box, and the lead screw thread passes through the screw block, and a lead screw nut adapted to the lead screw is fixedly sleeved on the screw block.

[0010] Preferably, a servo motor is fixedly connected to the top of the outer wall of the housing, and the output end of the servo motor is fixedly connected to one end of the lead screw.

[0011] The beneficial effects of this utility model are as follows: 1. By employing a positioning mechanism, the positions of the ceramic rings relative to the center of the mounting ring can be adjusted through the individual adjustment of the three handwheels. This facilitates control of the relative distance between the three cables. Furthermore, the ceramic rings are easily replaceable and can accommodate cables of varying thicknesses. This effectively solves the problem of inaccurate cable positioning mentioned in the background technology, thereby improving the positioning accuracy during the extrusion of multi-strand cable insulation. It ensures a stable and uniform relative distance between the three cables, effectively avoiding problems such as uneven insulation thickness and insufficient filling caused by core misalignment, convergence, or dispersion, thus guaranteeing the electrical performance and structural strength of the cable.

[0012] 2. By using a servo motor, positioning screw, lead screw, and oblique hole, the height of the L-shaped lifting plate, mounting ring, and three positioning mechanisms can be controlled by the servo motor, thereby improving the accuracy of cable positioning. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a guiding and positioning device for synchronous insulation extrusion of multi-strand cables proposed in this utility model. Figure 2This is a schematic diagram of the positioning mechanism of a guide and positioning device for synchronous insulation extrusion of multi-strand cables proposed in this utility model. Figure 3 This is a cross-sectional view of one side of the housing of a guide and positioning device for synchronous insulation extrusion of multi-strand cables proposed in this utility model. Figure 4 This is a cross-sectional view of the other side of the housing of a guide and positioning device for synchronous insulation extrusion of multi-strand cables proposed in this utility model.

[0014] In the diagram: 1. Mounting base; 2. Housing; 201. Sliding sleeve; 3. L-shaped lifting plate; 301. Connecting block; 302. Angled hole; 4. Mounting ring; 5. Positioning mechanism; 501. Threaded rod; 502. Handwheel; 503. Guide rod; 504. Connecting base; 505. Fixing ring; 506. Threaded ring; 507. Ceramic ring; 6. Servo motor; 601. Positioning rod; 602. Lead screw; 603. Threaded block; 604. Protruding rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 A guiding and positioning device for synchronous insulation extrusion of multi-strand cables includes a mounting base 1, a housing 2 fixedly connected to the top of the mounting base 1, and an L-shaped lifting plate 3 slidably fitted on the top of the housing 2. The top of the housing 2 has a strip-shaped hole adapted to the L-shaped lifting plate 3. A connecting block 301 is fixedly connected to the top of the L-shaped lifting plate 3, and a mounting ring 4 is fixedly connected to the top of the connecting block 301. Three positioning mechanisms 5 are equidistantly arranged on the top of the mounting ring 4. Each positioning mechanism 5 includes a threaded rod 501 screwed onto the mounting ring 4, and a screw nut adapted to the threaded rod 501 is fixedly fitted on the mounting ring 4. One end of the threaded rod 501 located inside the mounting ring 4 is rotatably connected to a connecting seat 504, and the other end of the threaded rod 501 is fixedly connected to a handwheel 502. Both ends of the connecting seat 504 near the edge of the mounting ring 4 are fixedly connected to guide rods 503. The other end of each guide rod 503 slides through the mounting ring 4 and is fixedly connected to a protrusion. The mounting ring 4 has a round hole that matches the guide rod 503. By rotating the handwheel 502, the position of the cable relative to the center of the mounting ring 4 can be adjusted to achieve cable positioning. At the same time, the replaceability of the ceramic ring 507 allows for positioning of different cables.

[0017] In this utility model, the positioning mechanism 5 also includes a fixing ring 505 fixedly connected to the side of the connecting seat 504 near the center of the mounting ring 4, and a screw ring 506 is screwed into the circumference of the fixing ring 505. The screw ring 506 and the fixing ring 505 are provided with matching threaded grooves on one side. The outer circumference of the screw ring 506 is provided with anti-slip texture, and a ceramic ring 507 is fixedly connected to the inner circumference of the screw ring 506. By disassembling the screw ring 506, the ceramic ring 507 can be replaced, so that different cables can be stably positioned.

[0018] In this utility model, the L-shaped lifting plate 3 is fixedly connected to sliding rods at both ends of the bottom outside the box 2, and each sliding tube slides through the top of the box 2. Sliding sleeves 201 that are adapted to the sliding rods are fixedly fitted at both ends of the top of the box 2. The L-shaped lifting plate 3 has oblique holes 302 at its vertical position.

[0019] In this utility model, a positioning rod 601 is fixedly connected between the two sides of the inner wall of the top of the box 2, and a screw block 603 is slidably sleeved on the positioning rod 601. The screw block 603 has a round hole that matches the positioning rod 601. A protruding rod 604 is fixedly connected to the side of the screw block 603 near the inclined hole 302, and the protruding rod 604 is slidably connected in the inclined hole 302. The L-shaped lifting plate 3 can be adjusted by moving the screw block 603 with the protruding rod 604 horizontally.

[0020] In this utility model, a lead screw 602 is rotatably connected between the two ends of the top of the inner wall of the box 2, and the lead screw 602 is threaded through the screw block 603. A lead screw nut that is compatible with the lead screw 602 is fixedly sleeved on the screw block 603.

[0021] In this utility model, a servo motor 6 is fixedly connected to the top of the outer wall of the housing 2, and the output end of the servo motor 6 is fixedly connected to one end of the lead screw 602. By rotating the servo motor 6 in both directions, the height of the mounting ring 4 can be adjusted, thereby improving the adjustment flexibility of the positioning device.

[0022] Working principle: The servo motor 6 of this device is connected to the controller and is also equipped with an electromagnetic brake valve. During installation, it is mounted at the inlet of the extruder via a support frame, ensuring that the circular mounting ring 4 is in the same vertical position as the inlet of the extruder. By starting the servo motor 6, the lead screw 602 is rotated, causing the screw block 603 to slide along the positioning rod 601 with the protrusion 604. Through the cooperation of the protrusion 604 and the inclined hole 302, the L-shaped lifting plate 3 with the mounting ring 4 is adjusted vertically until the height is suitable. The three cables are then passed through the corresponding... The inner side of the ceramic ring 507 has good wear resistance, preventing damage from cable friction. By rotating the handwheel 502 of the three positioning mechanisms 5, the distance between the ceramic ring 507 and the center of the mounting ring 4 can be controlled, thereby controlling the position of the three cables and positioning them. When there is a difference between the cable thickness and the inner diameter of the ceramic ring 507, the screw ring 506 can be rotated to separate it from the fixing ring 505. A new screw ring 506 and ceramic ring 507 can then be replaced to ensure that the new ceramic ring 507 is compatible with the cable diameter, thus guaranteeing the stability of the extrusion positioning.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A guiding and positioning device for synchronous insulation extrusion of multi-strand cables, comprising a mounting base (1), characterized in that, The mounting base (1) is fixedly connected to the top of the housing (2), and the top of the housing (2) is slidably fitted with an L-shaped lifting plate (3). The top of the housing (2) is provided with a strip hole that matches the L-shaped lifting plate (3). The top of the L-shaped lifting plate (3) is fixedly connected to a connecting block (301), and the top of the connecting block (301) is fixedly connected to a mounting ring (4). The top of the mounting ring (4) is provided with three positioning mechanisms (5) at equal intervals. The positioning mechanism (5) includes a threaded rod (501) screwed onto the mounting ring (4). The mounting ring (4) A screw nut that matches the threaded rod (501) is fixedly sleeved on the upper part. One end of the threaded rod (501) located inside the mounting ring (4) is rotatably connected to a connecting seat (504). The other end of the threaded rod (501) is fixedly connected to a handwheel (502). Both ends of the connecting seat (504) near the edge of the mounting ring (4) are fixedly connected to guide rods (503). The other end of each guide rod (503) slides through the mounting ring (4) and is fixedly connected to a protrusion. The mounting ring (4) has a round hole that matches the guide rod (503).

2. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 1, characterized in that, The positioning mechanism (5) further includes a fixing ring (505) fixedly connected to the side of the connecting seat (504) near the center of the mounting ring (4), and a screw ring (506) is screwed inside the circumference of the fixing ring (505), and a matching threaded groove is provided on one side of the screw ring (506) and the fixing ring (505). The outer circumference of the screw ring (506) is provided with anti-slip texture, and a ceramic ring (507) is fixedly connected to the inner circumference of the screw ring (506).

3. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 1, characterized in that, The L-shaped lifting plate (3) is fixedly connected to sliding rods at both ends of the bottom outside the box (2), and each sliding tube slides through the top of the box (2). Sliding sleeves (201) that are compatible with the sliding rods are fixedly fitted at both ends of the top of the box (2).

4. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 1, characterized in that, The L-shaped lifting plate (3) has an oblique hole (302) in its vertical position.

5. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 1, characterized in that, A positioning rod (601) is fixedly connected between the two sides of the inner wall of the top of the box (2), and a screw block (603) is slidably sleeved on the positioning rod (601). A round hole adapted to the positioning rod (601) is opened on the screw block (603). A protruding rod (604) is fixedly connected to the side of the screw block (603) near the inclined hole (302), and the protruding rod (604) is slidably connected in the inclined hole (302).

6. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 5, characterized in that, A lead screw (602) is rotatably connected between the two ends of the top of the inner wall of the box (2), and the lead screw (602) is threaded through the screw block (603). A lead screw nut that is compatible with the lead screw (602) is fixedly sleeved on the screw block (603).

7. The guiding and positioning device for synchronous insulation extrusion of multi-strand cables according to claim 6, characterized in that, A servo motor (6) is fixedly connected to the top of the outer wall of the box (2), and the output end of the servo motor (6) is observed to be fixedly connected to one end of the lead screw (602).

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