一种电缆绝缘层挤出模具
By designing limiting and positioning mechanisms, the problems of complex mold replacement and uneven thickness in existing molds have been solved, enabling rapid mold adjustment and concentric positioning of cables, thereby improving the efficiency and thickness uniformity of cable insulation layer processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANDIAN CABLE CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing extrusion dies require die replacement when changing cable insulation layers of different thicknesses, and the fixing method is complicated, resulting in long disassembly and assembly time. It is impossible to change the cable sheath thickness without disassembling the die, and the thickness uniformity cannot be guaranteed when processing cables of different diameters.
A cable insulation extrusion die was designed, comprising a limiting mechanism and a positioning mechanism. The die sleeve can be quickly disassembled and assembled and the cable can be concentrically positioned by adjusting the limiting block and guide wheel. The spacing of the die sleeve can be quickly adjusted to accommodate cables of different thicknesses and diameters.
It enables rapid assembly and disassembly of the mold and concentric positioning of the cable, improving the efficiency and thickness uniformity of cable insulation layer processing, and adapting to the needs of cables with different thicknesses and diameters.
Smart Images
Figure CN224510362U_ABST
Abstract
Claims
1. A cable insulation extrusion die, comprising a die head sleeve (11), wherein a die core body (12) is slidably disposed inside the die head sleeve (11), wherein a plurality of fixing blocks are arranged in a circular array at one end of the die head sleeve (11), wherein a positioning groove is provided at one end of the die core body (12) corresponding to the position of the fixing blocks, and the fixing blocks are fixedly connected to the die core body (12) by fixing screws (13), characterized in that, The other end of the head sleeve (11) is slidably provided with a mold sleeve (14). The outer side of the mold core body (12) and the inner side of the mold sleeve (14) are combined to form a mold cavity (16). The head sleeve (11) is provided with a feed pipe (27) corresponding to the position of the mold cavity (16). A limiting mechanism for quickly fixing the mold sleeve (14) is provided on one side of the mold sleeve (14). A positioning mechanism for concentric positioning of the cable is provided inside the mold core body (12).
2. An extrusion die for cable insulation according to claim 1, characterized in that The limiting mechanism includes limiting blocks (17), and a plurality of limiting blocks (17) are arranged in a circular array. Each limiting block (17) is slidably disposed inside the first fixed tube (18). A return spring (19) is provided between one end of the limiting block (17) and one end inside the first fixed tube (18). The first fixed tube (18) is fixedly disposed on one side of the mold sleeve (14). A limiting groove is provided on the inner side of the machine head sleeve (11) at a position corresponding to one end of the limiting block (17). A guide groove (20) is provided on one end of the machine head sleeve (11) at a position corresponding to the limiting groove. A pushing component is provided on the machine head sleeve (11) for pushing the limiting block (17) to move.
3. A cable insulation layer extrusion die according to claim 2, wherein, The pushing assembly includes push rods (21), and each end of the limiting groove is provided with a sliding through hole. Several push rods (21) are slidably disposed in several sliding through holes. One end of each push rod (21) is fixedly provided with a fixing plate. The fixing plate is slidably disposed inside a second fixing tube (23). The second fixing tube (23) is fixedly disposed on the head sleeve (11). A tension spring (22) is provided between the upper end of the fixing plate and one end inside the second fixing tube (23). The two sides of the fixing plate are provided with tension springs (22). Each is fixedly provided with an extension column, one end of which extends to the outside of the second fixed tube (23). Each extension column is rotatably provided with a connecting rod (24), and the other end of each connecting rod (24) is hinged with a fixed seat. Each fixed seat is fixedly provided on the upper end of the sliding frame (25). The sliding frame (25) is slidably provided on the head sleeve (11). Several sliding frames (25) are fixedly provided on one end of a sliding ring (26), and the sliding ring (26) is slidably provided on the head sleeve (11).
4. A cable insulation layer extrusion die according to claim 3, wherein, One end of the mold sleeve (14) is fitted with a limiting ring (15), which is fixedly installed inside the head sleeve (11).
5. The cable insulation layer extrusion die of claim 1, wherein, The positioning mechanism includes two symmetrically arranged guide wheels (31). The guide wheels (31) are rotatably mounted inside the rotating frame. The rotating frame is fixedly mounted at one end of the rotating rod (32). A fixed rod is fixedly mounted at the other end of the rotating rod (32). Rotating plates are rotatably mounted at both ends of the fixed rod. The rotating plates are fixedly mounted inside the mold core body (12). A gear is fixedly mounted at one end of the rotating rod (32). A rack (33) meshes with the gear. A sliding plate is fixedly mounted at the upper end of the rack (33). The sliding plate is T-shaped and slides in the limiting groove inside the mold core body (12). A threaded hole is provided on one side of the sliding plate. A threaded rod (34) is fitted in the threaded hole and rotatably mounted in the limiting groove.
6. A cable insulation layer extrusion die according to claim 5, wherein, One of the rotating plates has a scale value on one side.
7. A cable insulation layer extrusion die according to claim 1, wherein The feed pipe (27) has a sliding pipe in the middle, and a switching plate (29) is slidably provided inside the sliding pipe. The switching plate (29) has symmetrically provided mounting grooves, and each mounting groove is fitted with a filter screen (28). A connecting plate is fixedly provided at one end of the switching plate (29), and the connecting plate is fixedly connected to the output end of two electric push rods (30). The electric push rods (30) are fixedly provided on the sliding pipe.