An insulation extrusion die for cable production

By using an adaptive mechanism and connecting block design, the problem of needing to stop the machine when changing wire diameter in existing molds has been solved, which improves cable production efficiency and simplifies mold maintenance, achieving efficient production and convenient maintenance.

CN224437275UActive Publication Date: 2026-06-30CHONGQING BASHU CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING BASHU CABLE CO LTD
Filing Date
2025-08-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing cable production extrusion dies require long downtime to switch wire diameters when extruding insulation for cables of different sizes, resulting in low production efficiency.

Method used

An adaptive mechanism, including dampers, springs, sliders, and slide bars, is employed to adjust the opening of the arc block to accommodate cables of different sizes. Combined with connecting blocks, bolts, and nuts, it facilitates the disassembly and maintenance of mold components.

Benefits of technology

It enables wire diameter adjustment without stopping the machine, improving cable production efficiency and simplifying the maintenance process of mold components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an insulation extrusion die for cable production, relating to the field of cable manufacturing technology. The insulation extrusion die includes an extruder and an adaptive mechanism. Multiple sets of mounting cylinders, a mounting ring, and multiple sets of arc-shaped blocks are located on the front side of the extruder. The adaptive mechanism is mounted on the mounting ring and is used to drive the arc-shaped blocks to adapt to cables of different sizes. The adaptive mechanism includes a damper, a spring, a slider, and a slide rod, and the adaptive mechanism consists of multiple sets arranged in a circular array on the mounting ring. Through the coordinated use of the damper, spring, slider, slide rod, and arc-shaped blocks, the adaptive mechanism can adjust the opening formed by the multiple sets of arc-shaped blocks. Compared to the fixed opening size of traditional dies, when extruding insulation for cables of different sizes, it is not necessary to stop the machine for a long time to change the wire diameter, saving time and labor, thereby improving cable production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of cable production technology, and in particular to an insulating extrusion die for cable production. Background Technology

[0002] Chinese patent document CN220904060U discloses a cable production extrusion die, relating to the field of die technology. It includes a cable production device body and a cooling assembly, as well as a limiting assembly. The limiting assembly includes a die core, a limiting block fixed to one outer surface of the die core, and multiple perforations on the outer surface of the limiting block. Multiple bolts are movably embedded inside the limiting block. In this invention, when the insulation layer on the surface of a cable needs to be produced, the raw material for cable production is first fed into the cable production device body through the feed inlet. The raw material enters the extrusion die. Through the action of the limiting assembly, the positional misalignment between the die core and the die sleeve is effectively prevented, thus preventing any impact on the quality of the cable forming. This solves the problem in the prior art where the die core and die sleeve are easily misaligned due to external pressure during cable extrusion forming, leading to substandard cable quality.

[0003] The cable production extrusion die mentioned above has a fixed opening size. When extruding insulation for cables of different sizes, the traditional production line needs to stop for a long time when changing the wire diameter, which is time-consuming and labor-intensive, thus reducing the production efficiency of cables. Utility Model Content

[0004] The purpose of this invention is to provide an insulation extrusion die for cable production that can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulation extrusion die for cable production, comprising:

[0006] The extruder has multiple sets of mounting cylinders, mounting rings, and arc-shaped blocks on its front side.

[0007] The adaptive mechanism, located on the mounting ring, is used to drive the arc-shaped block to adapt to cables of different sizes.

[0008] Preferably, the adaptive mechanism includes a damper, a spring, a slider, and a slide rod. The adaptive mechanism is arranged in multiple sets in a circular array on the mounting ring. A damper and a spring are fixedly installed on the bottom inner side of each of the multiple sets of mounting cylinders. The spring is sleeved on the outer wall of the damper. A slider is fixedly installed at one end of each of the multiple sets of dampers and springs. A slide rod is fixedly installed at the top of each of the multiple sets of sliders.

[0009] Preferably, one end of each of the multiple sets of sliding rods extends into the interior of the mounting ring and is fixedly installed with a set of arc-shaped blocks. The slider is slidably installed inside the mounting cylinder, and the sliding rod is slidably installed with the mounting ring.

[0010] Preferably, a feed pipe is fixedly installed on the outer wall of the extruder, a motor is fixedly installed on one side of the feed pipe, the output shaft of the motor extends into the interior of the feed pipe and a rotating rod is fixedly installed thereon, and a helical blade is fixedly installed on the outer wall of the rotating rod.

[0011] Preferably, two sets of connecting blocks are fixedly installed on both the mounting ring and the outer wall of the extruder. Each of the four sets of connecting blocks has a through hole. Each of the two sets of connecting blocks on the mounting ring has a set of bolts slidably installed through the through holes. One end of each of the two sets of bolts extends to the rear side of the mounting ring through the other two sets of through holes. Each of the two sets of bolts has two sets of nuts threadedly connected to its outer wall.

[0012] Preferably, a feed hopper is fixedly installed on the outer wall of the feed pipe, one end of the feed hopper extends into the interior of the feed pipe, two sets of supports are fixedly installed at the bottom of the extruder, and one set of supports is fixedly installed on the outer wall of the feed pipe.

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

[0014] (1) The insulation extrusion die for the cable production, through the combined use of damper, spring, slider, slide bar and arc block, the adaptive mechanism can adjust the opening composed of multiple sets of arc blocks. Compared with the fixed opening of the traditional die size, when extruding insulation for cables of different sizes, it is not necessary to stop for a long time to switch wire diameters, saving time and effort, thereby improving the production efficiency of the cable.

[0015] (2) The insulation extrusion die for the cable production, through the use of connecting blocks, bolts and nuts, allows the mounting ring and its components to be disassembled and replaced for maintenance when the spring becomes fatigued after long-term use, which is relatively convenient. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front perspective view of the present invention;

[0018] Figure 2 This is a front sectional perspective view of the mounting ring of this utility model;

[0019] Figure 3 This is a perspective view of the feed pipe of this utility model.

[0020] Reference numerals: 1. Extruder; 2. Mounting ring; 3. Mounting cylinder; 4. Adaptive mechanism; 401. Damper; 402. Spring; 403. Slider; 404. Sliding rod; 5. Arc block; 6. Feed pipe; 7. Motor; 8. Rotating rod; 9. Spiral blade; 10. Connecting block; 11. Bolt; 12. Nut; 13. Feed hopper; 14. Support. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: an insulation extrusion mold for cable production, including an extruder 1 and an adaptive mechanism 4. The front side of the extruder 1 is provided with multiple sets of mounting cylinders 3, a mounting ring 2, and multiple sets of arc-shaped blocks 5. The adaptive mechanism 4 is mounted on the mounting ring 2 and is used to drive the arc-shaped blocks 5 to adapt to cables of different sizes.

[0023] The adaptive mechanism 4 includes a damper 401, a spring 402, a slider 403, and a slide rod 404. The adaptive mechanism 4 consists of multiple sets arranged in a circular array on the mounting ring 2. A damper 401 and a spring 402 are fixedly installed on the bottom inner side of each of the multiple sets of mounting cylinders 3. The spring 402 is sleeved on the outer wall of the damper 401. A slider 403 is fixedly installed at one end of each of the multiple sets of dampers 401 and springs 402. A slide rod 404 is fixedly installed on the top of each of the multiple sets of sliders 403. The adaptive mechanism 4 can adjust the opening composed of multiple sets of arc blocks 5. Compared with the fixed opening of the traditional mold size, when extruding insulation for cables of different sizes, it is not necessary to stop the machine for a long time to switch wire diameters, saving time and effort, thereby improving the production efficiency of cables.

[0024] One end of each of the multiple sets of sliding rods 404 extends into the interior of the mounting ring 2 and is fixedly installed with a set of arc-shaped blocks 5. The slider 403 is slidably installed inside the mounting cylinder 3, and the sliding rods 404 are slidably installed with the mounting ring 2.

[0025] A feed pipe 6 is fixedly installed on the outer wall of the extruder 1. A motor 7 is fixedly installed on one side of the feed pipe 6. The output shaft of the motor 7 extends into the interior of the feed pipe 6 and a rotating rod 8 is fixedly installed thereon. A spiral blade 9 is fixedly installed on the outer wall of the rotating rod 8.

[0026] Two sets of connecting blocks 10 are fixedly installed on the outer walls of both the mounting ring 2 and the extruder 1. Each of the four sets of connecting blocks 10 has a through hole. A set of bolts 11 is slidably installed on each of the two sets of connecting blocks 10 on the mounting ring 2 through the through holes. One end of each of the two sets of bolts 11 extends to the rear side of the mounting ring 2 through the other two sets of through holes. Two sets of nuts 12 are threaded onto the outer walls of each of the two sets of bolts 11. When the spring 402 becomes fatigued after long-term use, the mounting ring 2 and its components can be disassembled and replaced for maintenance using the nuts 12 and bolts 11. The operation is relatively convenient.

[0027] A feed hopper 13 is fixedly installed on the outer wall of the feed pipe 6. One end of the feed hopper 13 extends into the interior of the feed pipe 6. Two sets of supports 14 are fixedly installed at the bottom of the extruder 1. One set of supports 14 is fixedly installed on the outer wall of the feed pipe 6.

[0028] Working principle: When work is required, the compression damper 401 and spring 402 can drive the slider 403 to slide inside the mounting cylinder 3, thereby adjusting the opening composed of multiple sets of arc blocks 5. One end of the cable is inserted through the opening composed of multiple sets of arc blocks 5 and exited through the extruder 1. The insulating material is poured into the feed pipe 6 through the feed hopper 13. The motor 7 is started, and the output shaft of the motor 7 drives the rotating rod 8 to rotate. The rotating rod 8 drives the spiral blade 9 to rotate, thereby feeding the insulating material into the extruder 1. The extruder 1 can wrap the insulating material on the surface of the cable. When the spring 402 becomes fatigued after long-term use, the multiple sets of nuts 12 can be removed by rotating the nut 12, thereby pulling out the bolt 11. At this time, the mounting ring 2 and its related components can be disassembled for easy maintenance.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An insulation extrusion die for cable production, characterized in that, include: Extruder (1), multiple sets of mounting cylinders (3) are provided on the front side of extruder (1), mounting ring (2) is provided on the front side of extruder (1), and multiple sets of arc blocks (5) are provided on the front side of extruder (1). An adaptive mechanism (4) is set on the mounting ring (2). The adaptive mechanism (4) is used to drive the arc block (5) to adapt to cables of different sizes.

2. The insulation extrusion die for cable production according to claim 1, characterized in that: The adaptive mechanism (4) includes a damper (401), a spring (402), a slider (403), and a slide rod (404). The adaptive mechanism (4) consists of multiple sets arranged in a ring array on the mounting ring (2). A set of dampers (401) and springs (402) are fixedly installed on the bottom inner side of each set of mounting cylinders (3). The springs (402) are sleeved on the outer wall of the dampers (401). A slider (403) is fixedly installed at one end of each set of dampers (401) and springs (402). A slide rod (404) is fixedly installed at the top of each set of sliders (403).

3. The insulation extrusion die for cable production according to claim 2, characterized in that: One end of each of the multiple sets of slide rods (404) extends into the interior of the mounting ring (2) and is fixedly installed with a set of arc blocks (5). The slider (403) is slidably installed inside the mounting cylinder (3), and the slide rod (404) is slidably installed with the mounting ring (2).

4. The insulation extrusion die for cable production according to claim 3, characterized in that: The extruder (1) has a feed pipe (6) fixedly installed on its outer wall. A motor (7) is fixedly installed on one side of the feed pipe (6). The output shaft of the motor (7) extends into the inside of the feed pipe (6) and a rotating rod (8) is fixedly installed thereon. A spiral blade (9) is fixedly installed on the outer wall of the rotating rod (8).

5. The insulation extrusion die for cable production according to claim 4, characterized in that: The outer walls of the mounting ring (2) and the extruder (1) are both fixedly equipped with two sets of connecting blocks (10). All four sets of connecting blocks (10) have through holes. The two sets of connecting blocks (10) on the mounting ring (2) are slidably equipped with a set of bolts (11) through the through holes. One end of the two sets of bolts (11) extends to the rear side of the mounting ring (2) through the other two sets of through holes. The outer walls of the two sets of bolts (11) are threaded with two sets of nuts (12).

6. The insulation extrusion die for cable production according to claim 5, characterized in that: The outer wall of the feed pipe (6) is fixedly installed with a feed hopper (13), one end of which extends into the interior of the feed pipe (6). Two sets of supports (14) are fixedly installed at the bottom of the extruder (1), and a set of supports (14) is fixedly installed on the outer wall of the feed pipe (6).

Citation Information

Patent Citations

  • Extrusion die for cable production

    CN220904060U