Extrusion die for cable sheath

Abstract

The utility model relates to the technical field of cable extrusion dies, in particular to a cable sheath extrusion die which comprises an inner sleeve body, a conical ring used for extruding a sheath is arranged on the periphery of the inner sleeve body, and a bottom ring located on the periphery of the inner sleeve body is installed on the surface of the bottom end of the conical ring in a screwed mode. A ring sleeve located on the periphery of the inner sleeve body is installed on the surface of the top end of the conical ring in a screwed mode, and a ring groove used for lubricating is formed in the ring sleeve. In the process of using the cable sheath extrusion die, lubricating oil can be conveniently filled into the ring groove in the ring sleeve, then the lubricating oil conveniently enters the inclined ring groove through the ring groove and conveniently enters the space between the inner sleeve body and the ring sleeve through the inclined ring groove, the extrusion sheath on the periphery of the inner sleeve body is conveniently lubricated, and the service life of the cable sheath extrusion die is prolonged. And the lubricating oil can be more uniformly coated on the periphery of the sheath through the annular groove, so that the extrusion smoothness of the sheath can be conveniently improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable extrusion mould technical field, concretely relates to a cable sheath extrusion mould. BACKGROUND

[0002] The cable sheath is the outermost layer of the cable, and is the most important barrier for protecting the safety of the internal structure in the cable. It protects the cable from mechanical damage during installation and after installation, and provides protection against moisture, chemicals, ultraviolet light and ozone. The cable sheath extrusion mould is a forming device for manufacturing cable sheaths, and is the last hot pressing device in the whole process of plastic extrusion. The geometric shape, structure type and size, temperature and pressure directly determine the processing quality of the product. Patent No. CN202420264576.8 discloses a cable sheath extrusion mould. The cable core is placed at the inner axis of the mold support sleeve and the sizing sleeve, and then the material is input into the extrusion ring b and the extrusion ring a in the extrusion assembly. The material is evenly laid and wrapped outside the cable core through the opening of the extrusion ring a. In this way, the sheath can be extruded at the same time as the sheath is wrapped outside the cable core, improving the efficiency. However, when using lubricating oil to lubricate the extruded material, the lubricating oil is prone to accumulate on one side of the extrusion hole, resulting in uneven lubrication and affecting the extruded material. Therefore, we propose a cable sheath extrusion mould. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides a cable sheath extrusion mould.

[0004] The utility model solves the technical problems by adopting the technical scheme of a cable sheath extrusion mould, which comprises an inner sleeve body, a conical ring for sheath extrusion is arranged on the outer periphery of the inner sleeve body, a bottom ring located on the outer periphery of the inner sleeve body is screw-mounted on the bottom end surface of the conical ring, a ring sleeve located on the outer periphery of the inner sleeve body is screw-mounted on the top end surface of the conical ring, a circle groove for lubrication is arranged in the ring sleeve, and an inclined ring groove in communication with the circle groove is arranged between the ring sleeve and the conical ring.

[0005] A circular groove is arranged on the inner periphery of the ring sleeve, a circular ring seat abutting against the ring sleeve is inserted into the circular groove, a filter ring net in communication with the circle groove is assembled on the top end surface of the circular ring seat, magnetic attraction blocks connected to each other are assembled on the opposite sides of the circular ring seat and the ring sleeve, and the magnetic attraction blocks have multiple groups.

[0006] By adopting the technical scheme, the lubricating oil can be filled into the ring groove in the ring sleeve, then enter the inclined ring groove through the ring groove, and then enter the inner sleeve body and the ring sleeve through the inclined ring groove, so as to lubricate the extruded sheath on the outer periphery of the inner sleeve body, and the lubricating oil can be more uniformly coated on the outer periphery of the sheath, thereby improving the smoothness of the sheath extrusion.

[0007] During use of the lubricating oil in the ring groove, the lubricating oil can be filtered through the filter ring on the top of the circular ring seat before entering the inclined ring groove, so as to lubricate the cable sheath, and the filtered lubricating oil can be more conveniently used, thereby improving the stability of the lubricating oil during use, and the magnetic attraction blocks between the circular ring seat and the ring sleeve are magnetically connected with each other, so as to limit the connection between the circular ring seat and the ring sleeve, and the circular ring seat can be more stably installed on the inner periphery of the ring sleeve.

[0008] Specifically, the ring sleeve bottom end surface is integrally provided with a plurality of limiting protruding rods, and the outer periphery surface of the circular ring seat is provided with a plurality of recessed holes matched with the protruding rods.

[0009] By adopting the technical scheme, the protruding rods and the recessed holes are inserted with each other, thereby improving the stability of the connection between the circular ring seat and the ring sleeve, and the circular ring seat and the filter ring can stably operate.

[0010] Specifically, the ring groove is bonded with a rubber seat matched with the filter ring, and the end of the ring sleeve close to the conical ring is bonded with a rubber ring for leakage prevention.

[0011] By adopting the technical scheme, the rubber seat inside the ring groove is matched with the filter ring, thereby improving the tightness of the connection between the filter ring and the rubber seat, and the rubber ring improves the tightness of the connection between the ring sleeve and the conical ring.

[0012] Specifically, the ring sleeve is provided with a plurality of check valves communicated with the ring groove.

[0013] By adopting the technical scheme, the check valve can reduce the backflow of the lubricating oil into the ring groove, so that the lubricating oil can be stably used subsequently.

[0014] Specifically, the top end surface of the ring sleeve is provided with a plurality of vertical holes communicated with the ring groove, and a plug is screw-mounted in the vertical hole.

[0015] By adopting the technical scheme, the plug is screw-mounted in the vertical hole, thereby plugging the vertical hole, and the plug can be conveniently disassembled, thereby conveniently cleaning the ring groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1、 this application technical scheme through the design of conical ring, bottom ring, ring cover, ring groove and inclined ring groove, in the process of using to cable sheath extrusion die, can fill lubricating oil into ring groove in ring cover conveniently, then lubricating oil is convenient to enter inclined ring groove through ring groove, and is convenient to enter the inner sleeve body and ring cover between the inclined ring groove, lubricate the extrusion sheath of the outer periphery of inner sleeve body conveniently, and lubricating oil can be more evenly coated on the outer periphery of sheath through the annular groove, convenient to improve the smoothness of sheath extrusion.

[0018] 2、 this application technical scheme through the design of round groove, round ring seat, filter ring net and magnetic block, in the process of using lubricating oil in ring groove, lubricating oil is filtered through the filter ring on the top of round ring seat and then enters inclined ring groove, convenient to lubricate cable sheath, and the filtered lubricating oil can be used more conveniently, convenient to improve the stability of lubricating oil when using, and the magnetic block between round ring seat and ring cover is connected with each other magnetically, convenient to limit after connecting between round ring seat and ring cover, so that the round ring seat can be more stably installed in the inner periphery of ring cover. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model is further described below in combination with the drawings and examples.

[0020] Figure 1 It is the axonometric drawing of the utility model;

[0021] Figure 2 It is the connecting structure plane schematic view between the inner sleeve body and ring cover of the utility model;

[0022] Figure 3 It is the connecting structure schematic view between the filter ring net and round ring seat of the utility model;

[0023] In the drawing: 1, inner sleeve body;2, conical ring;3, bottom ring;4, ring cover;5, ring groove;6, inclined ring groove;7, round groove;8, round ring seat;9, filter ring net;10, magnetic block;11, recess hole;12, convex rod;13, rubber ring;14, rubber seat;15, check valve;16, vertical hole;17, plug. DETAILED DESCRIPTION

[0024] In order to make the technical means, creation characteristics, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0025] Please refer to Figures 1-3The utility model discloses an embodiment provides a technical scheme: a cable sheath extrusion die, including the inside cover body 1, the inside cover body 1 periphery is provided with the taper ring 2 for the sheath extrusion, and the taper ring 2 bottom end surface screwing installs the bottom ring 3 at the periphery of inside cover body 1, the taper ring 2 top end surface screwing installs the ring cover 4 at the periphery of inside cover body 1, and the ring cover 4 inside is provided with the ring groove 5 for lubricating, and the ring cover 4 with taper ring 2 between being provided with the inclined ring groove 6 of communicating with ring groove 5, the ring cover 4 periphery is provided with the round groove 7, and the round groove 7 inserts and has with the ring cover 4 abutment's ring seat 8, and the ring seat 8 top end surface is equipped with the filter ring net 9 of communicating with ring groove 5, and the ring seat 8 with ring cover 4 opposite side are all equipped with the magnetic attraction piece 10 of mutual magnetic attraction connection, and the magnetic attraction piece 10 has multiple groups.

[0026] When using, in the process of using cable sheath extrusion die, lubricating oil can be filled into ring groove 5 in ring cover 4 conveniently, then lubricating oil can enter inclined ring groove 6 through ring groove 5 conveniently, and can enter between inside cover body 1 and ring cover 4 through inclined ring groove 6 conveniently, lubricating oil can be conveniently used to lubricate the extrusion sheath of the periphery of inside cover body 1, and lubricating oil can be more evenly coated on the periphery of sheath through the annular groove, to improve the smoothness of sheath extrusion.

[0027] When using lubricating oil in ring groove 5, lubricating oil can be filtered through the filter ring on the top of ring seat 8 and then enter inclined ring groove 6, to conveniently lubricate the cable sheath, and the filtered lubricating oil can be more conveniently used, to improve the stability of lubricating oil when using, and the magnetic attraction pieces 10 between ring seat 8 and ring cover 4 are magnetically connected with each other, to conveniently limit after connecting between ring seat 8 and ring cover 4, so that ring seat 8 can be more stably installed in the periphery of ring cover 4.

[0028] As shown in Figure 2 and Figure 3 , the bottom end surface of ring cover 4 is integrally formed with a convex rod 12 for limiting, and the convex rod 12 has multiple groups, and the outer peripheral surface of ring seat 8 is provided with recessed holes 11 matching the convex rod 12, and the recessed holes 11 have multiple groups.

[0029] When using, the convex rod 12 and the recessed hole 11 are inserted into each other, to improve the stability of the mutual connection between ring seat 8 and ring cover 4, so that ring seat 8 and filter ring net 9 can stably operate.

[0030] As shown in Figure 2 , the ring groove 5 is bonded with a rubber seat 14 matching the filter ring net 9, and the end of ring cover 4 close to the taper ring 2 is bonded with a rubber ring 13 for leakage prevention.

[0031] In use, the rubber seat 14 on the inside of the ring groove 5 is convenient to match with the filter ring net 9, so as to improve the tightness after the connection between the filter ring net and the rubber seat 14, and the rubber ring 13 is convenient to improve the tightness after the connection between the ring sleeve 4 and the conical ring 2.

[0032] As shown in Figure 1 and Figure 2 The ring sleeve 4 is provided with a plurality of non-return valves 15 communicated with the ring groove 5.

[0033] In use, the non-return valve 15 is convenient to reduce the backflow of the lubricating oil into the ring groove 5, so that the lubricating oil can be used stably subsequently.

[0034] As shown in Figure 1 The ring sleeve 4 is provided with a plurality of vertical holes 16 communicated with the ring groove 5, and the vertical hole 16 is provided with a plurality of plugs 17 screwed and installed in the vertical hole 16.

[0035] In use, the plug 17 is screwed and installed in the vertical hole 16, so as to block the vertical hole 16, and the plug 17 is convenient to disassemble, so as to clean the ring groove 5.

[0036] The working principle and use process of the utility model are as follows: in use, first, the corresponding structure parts are installed in the appropriate position, in the process of using the cable sheath extrusion die, the lubricating oil can be filled into the ring groove 5 in the ring sleeve 4, then the lubricating oil can enter the inclined ring groove 6 through the ring groove 5, and can enter the inner sleeve body 1 and the ring sleeve 4 through the inclined ring groove 6, so as to lubricate the extrusion sheath on the outer periphery of the inner sleeve body 1, and the lubricating oil can be more uniformly coated on the outer periphery of the sheath through the annular groove, so as to improve the smoothness of the sheath extrusion, and in the process of using the lubricating oil in the ring groove 5, the lubricating oil can be filtered through the filter ring on the top of the circular ring seat 8 and then enter the inclined ring groove 6, so as to lubricate the cable sheath, and the filtered lubricating oil can be used more conveniently, so as to improve the stability of the lubricating oil in use, and the magnetic attraction blocks 10 between the circular ring seat 8 and the ring sleeve 4 are magnetically connected with each other, so as to limit the connection between the circular ring seat 8 and the ring sleeve 4, so that the circular ring seat 8 can be more stably installed in the inner periphery of the ring sleeve 4, and the extrusion die can more stably and smoothly extrude the cable sheath.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cable jacket extrusion die characterized by, The utility model relates to a sheath extrusion device, including inner sleeve body (1), the outer periphery of inner sleeve body (1) is provided with the taper ring (2) for sheath extrusion, and the bottom end surface of taper ring (2) is screw mounted with the bottom ring (3) located in the outer periphery of inner sleeve body (1), the top end surface of taper ring (2) is screw mounted with the ring cover (4) located in the outer periphery of inner sleeve body (1), and ring cover (4) is provided with the ring groove (5) for lubrication in, the ring cover (4) and taper ring (2) between be provided with the inclined ring groove (6) with ring groove (5) is connected, The outer periphery of ring cover (4) is provided with circular groove (7), and circular groove (7) is inserted with circular ring seat (8) and is in contact with ring cover (4), the top end surface of circular ring seat (8) is equipped with filter ring net (9) and is communicated with ring groove (5), and the opposite side of circular ring seat (8) and ring cover (4) is equipped with magnetic attraction block (10) and is connected with each other, and magnetic attraction block (10) has multiple groups.

2. A cable jacket extrusion die according to claim 1, wherein, The bottom end surface of ring cover (4) is integrally formed with convex rod (12) for limiting, and convex rod (12) has multiple groups, the outer periphery surface of circular ring seat (8) is provided with recess (11) and is matched with convex rod (12), and recess (11) has multiple groups.

3. A cable jacket extrusion die according to claim 1, wherein, The inner adhesion of ring groove (5) has rubber seat (14) and is matched with filter ring net (9), and the end of ring cover (4) close to taper ring (2) is bonded with rubber ring (13) for preventing leakage.

4. A cable jacket extrusion die according to claim 1, wherein, The outer periphery of ring cover (4) is equipped with check valve (15) and is communicated with ring groove (5), and check valve (15) has multiple groups.

5. A cable jacket extrusion die according to claim 1, wherein, The top end surface of ring cover (4) is provided with vertical hole (16) and is communicated with ring groove (5), and vertical hole (16) has multiple groups, and the screw installation of vertical hole (16) has plug (17) for plugging.

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