A simple portable cable jacket inner mold repair tool

CN224808147UActive Publication Date: 2026-09-29ZHEJIANG WANMA TIANYI COMM WIRE & CABLE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522610656.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-09
Publication Date
2026-09-29
Estimated Expiration
2035-12-09

AI Technical Summary

Technical Problem

[0002]护套挤出机是线缆生产的关键设备;由于护套挤出机内模模口呈较薄(通常厚度为0.2-0.4mm)的管状,因此生产过程中容易变形(例如模口变成椭圆,甚至一侧内壁往模口轴线方向凹进);而修复工具存在结构复杂、操作不便、维修周期较长等诸多问题,并且现有的修复技术多依赖固定平台或专业设备,难以满足现场快速维修需求,很多时候只能报废重新购买;不但影响了正常生产秩序,也增大例如生产成本

Benefits of technology

[0013]本实用新型兼具通用性与灵活性,可适配不同规格的护套挤出机内模,便于携带并且满足现场即时维修需求,操作简便且无需复杂工具,还能适应狭小空间作业,可大幅提升工作效率、降低设备停机时间与生产维护成本。不仅解决了现场即时维修的行业痛点,更实现了从"被动更换"到"主动修复"的技术跨越。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224808147U_ABST
    Figure CN224808147U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of cable mechanical repair instruments, specifically a kind of simple portable cable sheath inner die repair tool.The purpose is to provide a kind of simple portable sheath inner die repair tool, the sheath inner die repair tool should have the characteristics of simple operation, convenient to carry, can adapt to narrow space operation, to improve work efficiency, reduce production cost.The technical scheme is a kind of simple portable sheath inner die repair tool, characterized by: the sheath inner die repair tool includes at least one die repair body and the die repair head of matched set;The die repair body is T-shaped or Y-shaped, including two sides handle and the tubular working end in middle part, working end inner diameter is matched with the outer diameter of corresponding sheath extruder inner die die mouth;The die repair head is conical body, the larger end outer diameter of this conical body is matched with the inner diameter of aforementioned sheath extruder inner die die mouth, and is equipped with detachable die repair stick.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a cable mechanical repair device, specifically a simple and portable cable sheath inner mold repair tool. Background Technology

[0002] Sheath extruders are key equipment in cable production. Because the inner die of sheath extruders is relatively thin (typically 0.2-0.4mm thick), it is prone to deformation during production (e.g., the die becomes elliptical, or even one side of the inner wall is recessed towards the die axis). Repair tools suffer from numerous problems, including complex structure, inconvenient operation, and long maintenance cycles. Furthermore, existing repair technologies mostly rely on fixed platforms or specialized equipment, which are insufficient for rapid on-site repair needs, often necessitating scrapping and replacement. This not only disrupts normal production but also increases production costs. Therefore, designing a simple and portable inner die repair tool is of significant practical importance. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a simple and portable inner mold repair tool for sheaths. This inner mold repair tool should be easy to operate, easy to carry, and adaptable to operation in confined spaces, so as to improve work efficiency and reduce production costs.

[0004] The technical solution provided by this utility model is:

[0005] A simple and portable tool for repairing inner molds of sheaths is characterized in that: the tool includes at least one repair body and a matching repair head; the repair body is T-shaped or Y-shaped, including handles on both sides and a tubular working end located in the middle, the inner diameter of the working end matching the outer diameter of the corresponding inner mold orifice of the sheath extruder; the repair head is a cone, the outer diameter of the larger end of the cone matching the inner diameter of the aforementioned inner mold orifice of the sheath extruder, and is equipped with a detachable repair rod.

[0006] The larger end of the cone is provided with a screw hole, and one end of the mold rod is provided with an external thread that can mate with the screw hole, so as to achieve a detachable connection with the cone.

[0007] There are several mold-repairing bodies, and the working ends of these mold-repairing bodies are respectively matched with the outer diameter of the inner die orifice of the extruder of various specifications; there are also several mold-repairing heads, which are respectively matched with the inner diameter of the inner die orifice of the extruder of various specifications.

[0008] The cones on the mold-repairing head are all made with screw holes of uniform specifications, so that the mold-repairing rod can be detachably connected to each of the mold-repairing bodies.

[0009] Among the plurality of mold-repairing bodies, the inner diameters of their working ends are arranged in descending order, with the outer diameter of the working end of the subsequent mold-repairing body being smaller than the inner diameter of the working end of the preceding mold-repairing body; therefore, the working end of the subsequent mold-repairing body can be inserted into the inner cavity of the working end of the preceding mold-repairing body, thus facilitating storage.

[0010] The handles on both sides of the several molded bodies remain unchanged in shape, only the outer and inner diameters of the working ends of each molded body are different, so that they can be formed into a flat set when stored, thereby reducing the space occupied.

[0011] When using this invention, first select a repair die body and a repair die head that match the die opening of the inner die of the extruder to be repaired. Then, put the repair die body on the outer circumferential surface of the inner die of the extruder and fix the repair die head on the repair die rod. Then, move the repair die rod back and forth along the axis of the inner die opening of the extruder and rotate it so that the deformed (e.g., deformed into an elliptical shape) inner die opening is gradually opened and restored to a cylindrical shape, thus achieving the purpose of repairing the die opening.

[0012] The beneficial effects of this utility model are:

[0013] This invention combines versatility and flexibility, adapting to inner dies of extruders of different specifications. It is easy to carry and meets the needs of on-site immediate maintenance. Operation is simple and requires no complex tools, and it can also be used in confined spaces, significantly improving work efficiency and reducing equipment downtime and production maintenance costs. It not only solves the industry pain point of on-site immediate maintenance but also represents a technological leap from "passive replacement" to "proactive repair." Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure between the mold repair head and the mold repair rod in an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the main structure of the mold body in an embodiment of this utility model.

[0016] Figure 3 This is a top view of the mold body in an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram showing the connection relationship between the mold-repairing rod and several mold-repairing heads in an embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the stacked assembly state of several mold bodies in an embodiment of this utility model.

[0019] Figure 6 yes Figure 5 A schematic diagram of the disassembly process of the composite kit in the middle stage.

[0020] Figure 7This is a schematic diagram of the working state of this utility model embodiment when repairing the mold opening.

[0021] Figure 8 This is a schematic diagram of the longitudinal section structure of the inner mold of the sheath extruder.

[0022] The reference numerals are as follows: 1. Mold trimming rod; 2. Mold trimming body; 3. Mold trimming head; 4. Inner mold of extruder; 5. Mold orifice. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0024] Figure 1 , Figure 2 The simple and portable sheath extruder inner die repair tool kit shown includes at least one repair body 2 and a matching repair head 3. The repair body 2 is T-shaped (or Y-shaped), with handles on both sides for easy gripping during operation. The working end in the middle is a tubular structure, its inner diameter matching the outer diameter of the corresponding sheath extruder inner die orifice, allowing it to be fitted over the sheath extruder inner die orifice with the help of the handles. The repair head 3 is a cone, the outer diameter of its larger end matching the inner diameter of the aforementioned sheath extruder inner die orifice, and equipped with a detachable repair rod 1. The cone can modify the roundness of the inner cavity of the sheath extruder inner die orifice by rotating the repair rod. Because the sheath extruder inner die orifice is thin, deformed sheath extruder inner die orifices can be easily modified by manually rotating the repair rod.

[0025] Furthermore, the larger end of the cone is provided with a threaded hole (the threaded hole shown in the figure is a blind hole, but it can also be a through hole), and one end of the mold rod is provided with an external thread that can mate with the threaded hole, so as to achieve a detachable connection with the cone.

[0026] Because cables come in various specifications from thick to thin, the diameter of the die orifice in the sheath extruder also varies. Therefore, this invention employs the following method:

[0027] 1. There are several mold-repairing bodies 2, and the working ends of these mold-repairing bodies 2 are respectively matched with the outer diameter of the inner die orifice of the extruder of various specifications; there are also several mold-repairing heads 3, which are respectively matched with the inner diameter of the inner die orifice of the extruder of various specifications.

[0028] 2. The cones on the mold-repairing head 3 are all made with screw holes of the same specification so that the mold-repairing rod can be detachably connected to each of the mold-repairing heads.

[0029] 3. When the inner diameter of the working end of the plurality of mold-repairing bodies is arranged in descending order, the working end of the next mold-repairing body can be inserted into the inner cavity of the working end of the previous mold-repairing body to facilitate storage.

[0030] The handles on both sides of the plurality of mold-repairing bodies remain unchanged in shape, with only the outer and inner diameters of the working ends of each mold-repairing body differing, so as to form a shape such as when inserted and stored. Figure 5 The set shown in the image significantly reduces the space occupied.

[0031] In this invention, apart from the mold repair head which can be made of alloy steel, all other parts can be made of ordinary steel.

[0032] The core innovation of this utility model lies in its modular and customized design concept, which enables efficient and precise repair of the die opening of the inner mold of the sheath extruder. Specifically, the dimensions of the repair body and the repair head can be customized according to the actual parameters of the inner mold to ensure a high degree of fit with the inner mold structure. Through the precise assembly of the repair rod and the repair head, a repair system that can be quickly deployed is formed. Combined with the repair body, the die opening is repaired in a targeted manner, significantly improving repair efficiency and quality.

[0033] The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

Claims

1. A simple and portable tool for repairing inner molds of cable sheaths, characterized in that: The sheath inner mold repair tool includes at least one mold repair body (2) and a matching mold repair head (3); the mold repair body (2) is T-shaped or Y-shaped, including handles on both sides and a tubular working end located in the middle, the inner diameter of the working end matching the outer diameter of the corresponding sheath extruder inner mold orifice; the mold repair head (3) is a cone, the outer diameter of the larger end of the cone matching the inner diameter of the aforementioned sheath extruder inner mold orifice, and is equipped with a detachable mold repair rod (1).

2. The simple and portable cable sheath inner mold repair tool according to claim 1, characterized in that: The larger end of the cone is provided with a screw hole, and one end of the mold rod is provided with an external thread that can mate with the screw hole, so as to achieve a detachable connection with the cone.

3. The simple and portable cable sheath inner mold repair tool according to claim 2, characterized in that: There are several mold-repairing bodies (2), and the working ends of these mold-repairing bodies are respectively matched with the outer diameter of the inner die orifice of the extruder of various specifications; there are also several mold-repairing heads (3), which are respectively matched with the inner diameter of the inner die orifice of the extruder of various specifications.

4. The simple and portable cable sheath inner mold repair tool according to claim 3, characterized in that: The cones on the mold-repairing head (3) are all made with screw holes of the same specification so that the mold-repairing rod can be detachably connected to each of the mold-repairing bodies.

5. The simple and portable cable sheath inner mold repair tool according to claim 4, characterized in that: When the inner diameter of the working end of each of the several mold-repairing bodies is arranged in descending order, the working end of the next mold-repairing body can be inserted into the inner cavity of the working end of the previous mold-repairing body for convenient storage.

6. The simple and portable cable sheath inner mold repair tool according to claim 5, characterized in that: The handles on both sides of the several molded bodies remain basically unchanged in shape, except that the outer diameter and inner diameter of the working end of each molded body are different, so as to form a set when stored.