Extrusion head for cable plastic coating

Abstract

The utility model belongs to the technical field of cable production, and particularly relates to an extrusion head for cable plastic coating, which is characterized by comprising a first die body, a second die body and a third die body, the second die body is conical and is provided with an extrusion hole, the second die body is matched in the conical die hole, and the small end of the second die body extends to an opening in the small end of the conical die hole; and a plurality of guide holes are formed in the second die body, are formed in the second shaft body in a staggered manner, and are distributed on the outer side of the extrusion hole.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable production technical field especially relates to a cable plastic -coated extrusion head. BACKGROUND

[0002] The industry development tide surges, and the digital transformation promotes the new base station to spread in the trend of burning, and the submarine optical cable communication demand continues to rise, and the smart grid construction is advancing, and the ultra -high voltage transmission is vertical and horizontal, and the distributed energy is widely accessed, which all puts forward the super high standard to the cable, and the traditional single -layer water -resisting cable is insufficient, and it is inevitable trend to move towards high -performance, multi -functional cable.

[0003] The existing multilayer cable production equipment is often multilayer covering structure, which leads to the low overall structural strength of the made cable, and is not conducive to use, and therefore we specially design a cable plastic -coated extrusion head. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above -mentioned technical problem, provides a cable plastic -coated extrusion head, reaches the durable effect.

[0005] Therefore, the utility model provides a cable plastic -coated extrusion head, which comprises:

[0006] The first die body is provided with a through tapered die hole;

[0007] The second die body is tapered and provided with an extrusion hole, the second die body is fitted in the tapered die hole, and the small end of the second die body extends to the small end opening of the tapered die hole;

[0008] The second die body is provided with a plurality of guide holes, and the plurality of guide holes are staggered on the second die body and distributed on the outside of the extrusion hole.

[0009] In the above technical scheme, further, the guide hole comprises:

[0010] The core wire hole is distributed on the outside of the extrusion hole;

[0011] The stripping line hole is integrally formed on the wall surface of the extrusion hole;

[0012] The stripping line hole is provided with one, and the remaining guide holes are core wire holes.

[0013] In the above technical scheme, further, it further comprises:

[0014] The flange frame body is arranged on the outside of the port of the small end of the tapered die hole;

[0015] Among the plurality of guide holes, the guide hole closest to the flange frame body is the stripping line hole.

[0016] In the above technical solution, further, the flange frame body is movably connected to the first mold body.

[0017] In the above technical solution, further, it also includes:

[0018] The telescopic cylinder is arranged at the front end of the first mold body, and the flange frame body is arranged on the movable end of the telescopic cylinder.

[0019] The movable end of the telescopic cylinder faces the extrusion hole.

[0020] In the above technical solution, further, it also includes:

[0021] The cooperating frame is arranged on the movable end of the telescopic cylinder, and the cooperating frame is provided with a clamping groove, and the flange frame body is slidably connected to the clamping groove.

[0022] The side of the cooperating frame facing the extrusion hole is provided with an arc-shaped surface.

[0023] In the above technical solution, further, it also includes:

[0024] The fixed frame is arranged on the outer wall surface of the first mold body, and the fixed frame is provided with a connecting hole.

[0025] In the above technical solution, further, it also includes:

[0026] The connecting end is arranged on the second mold body, and the extrusion hole extends to the end surface of the connecting end.

[0027] The cable core can be subjected to secondary plastic packaging by replacing the same plastic packaging extrusion head with different diameters after the first plastic packaging, and the core wire structure is added, thereby helping to form a multi-layer waterproof protection structure and improving the service life. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a side structure schematic view of the utility model;

[0029] Figure 2 is another side structure schematic view of the utility model;

[0030] Figure 3 is a structure sectional view of the utility model;

[0031] Figure 4 is a local structure schematic view of the utility model;

[0032] The figure is marked as: 1, the first die body; 11, the tapered die hole; 2, the second die body; 21, the extrusion hole; 22, the core wire hole; 23, the stripping line hole; 3, the flange frame body; 4, the telescopic cylinder; 5, the matching frame; 51, the clamping groove; 6, the fixed frame; 61, the connecting hole; 7, the connecting end. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0034] Embodiment 1:

[0035] The embodiment provides an extrusion head for cable plastic packaging, comprising:

[0036] The first die body 1 is provided with a through tapered die hole 11;

[0037] The second die body 2 is tapered and provided with an extrusion hole 21, the second die body 2 is fitted in the tapered die hole 11, and the small end of the second die body 2 extends to the small end opening of the tapered die hole 11;

[0038] The second die body 2 is provided with a plurality of guide holes, the plurality of guide holes are staggered on the second die body 2 and distributed on the outside of the extrusion hole 21.

[0039] The embodiment can be seen that an extrusion head for cable plastic packaging comprises a first die body 1 and a second die body 2;

[0040] The first die body 1 is provided with a tapered die hole 11, the second die body 2 is connected to the tapered die hole 11 and cooperates with the first die body 1, and an injection molding channel is formed between the first die body 1 and the second die body 2;

[0041] The second die body 2 is tapered, the second die body 2 is provided with an extrusion hole 21, the tapered part of the second die body 2 cooperated with the tapered die hole 11 is a cone, the small end of the cone is the output end of the extrusion hole 21 and is connected to the small end opening of the tapered die hole 11, further, a plurality of guide holes are arranged on the end face of the small end of the cone, and the core wire structure of the cable is connected to the outside of the cable core by the guide hole cooperated with the external wire feeding device;

[0042] The plastic packaging material is injected into the outside of the second die body 2 by the injection molding channel, and is coated to the outside of the cable core extruded from the second die body 2 in the process of being sent out by the small end of the tapered die hole 11, and the core wire structure is integrally formed with the cable core and the plastic packaging layer, which helps to reduce the processing procedure and improve the production efficiency;

[0043] The processing efficiency is fast, the overall structural strength is high, and after the cable core is once plasticized, the cable core can be twice plasticized by replacing different caliber extrusion heads for plasticizing and adding core wire structures, thereby helping to form a multi-layer waterproof protection structure and improving the service life.

[0044] Embodiment 2:

[0045] The embodiment provides an extrusion head for cable plasticizing, in addition to the technical solutions of the above embodiments, further having the following technical features.

[0046] The guide holes include:

[0047] The core wire holes 22 are distributed outside the extrusion holes 21;

[0048] The stripping line holes 23 are integrally formed on the wall surface of the extrusion holes 21;

[0049] Among them, the stripping line hole 23 is provided, and the rest of the guide holes are core wire holes 22.

[0050] It can be seen from the embodiment that the guide holes include the core wire holes 22 and the stripping line holes 23;

[0051] The core wire holes 22 are circumferentially arrayed outside the extrusion holes 21, and the core wire holes 22 are used to guide the core wire structure to cover outside the cable core;

[0052] The stripping line holes 23 are integrally formed on the wall surface of the extrusion holes 21, and the stripping line holes 23 are used to guide the stripping line to be connected to the cable core;

[0053] By setting the core wire holes 22 and the stripping line holes 23, the core wire structure and the stripping line are uniformly distributed outside the cable core, thereby helping to improve the structural strength of the manufactured cable, and further, the stripping line is directly attached outside the cable core, thereby separating the plastic layer from the cable core during the stripping process of the stripping line.

[0054] Embodiment 3:

[0055] The embodiment provides an extrusion head for cable plasticizing, in addition to the technical solutions of the above embodiments, further having the following technical features.

[0056] The flange frame body 3 is arranged outside the port of the small end of the conical die hole 11;

[0057] Among them, the guide hole closest to the flange frame body among the plurality of guide holes is the stripping line hole 23.

[0058] The embodiment can be seen that by setting the flange frame body 3 on the port of the small end side of the tapered die hole 11, and then the flange frame body 3 will cut a fine slit on the outside of the plastic layer during the cable plastic wrapping process, but since the fine slit is integrally formed during the plastic layer forming process, therefore the influence on the plastic layer structure strength is small, and the plastic layer wall is thin, which facilitates the damage of the plastic layer by external force tearing and peeling off the line, thereby facilitating the peeling of the cable core.

[0059] Embodiment 4:

[0060] The embodiment provides an extrusion head for cable plastic wrapping, which comprises the technical scheme of the above-mentioned embodiments, and has the following technical features.

[0061] The flange frame body 3 is movably connected to the first die body 1.

[0062] The embodiment can be seen that in the use process, the flange frame body 3 can be extended to the port of the tapered die hole 11 or away from the port of the tapered die hole 11 through the movable cooperation between the flange frame body 3 and the first die body 1, so as to form a fine slit on the outside of the plastic layer or not.

[0063] Embodiment 5:

[0064] The embodiment provides an extrusion head for cable plastic wrapping, which comprises the technical scheme of the above-mentioned embodiments, and has the following technical features.

[0065] The telescopic cylinder 4 is arranged at the front end of the first die body 1, and the flange frame body 3 is arranged on the movable end of the telescopic cylinder 4.

[0066] The movable end of the telescopic cylinder 4 faces the extrusion hole 21.

[0067] The embodiment can be seen that the telescopic cylinder 4 is a telescopic cylinder, the telescopic cylinder 4 is connected with an external mounting frame and arranged at the front end of the first die body 1, and the flange frame body 3 is connected to the output end of the telescopic cylinder 4.

[0068] The flange frame body 3 realizes the movable effect through the telescopic cylinder 4.

[0069] Embodiment 6:

[0070] The embodiment provides an extrusion head for cable plastic wrapping, which comprises the technical scheme of the above-mentioned embodiments, and has the following technical features.

[0071] The matching frame 5 is arranged on the movable end of the telescopic cylinder 4, the matching frame 5 is provided with a clamping groove 51, and the flange frame body 3 is slidably connected to the clamping groove 51.

[0072] The side of the matching frame 5 facing the extrusion hole 21 is provided with an arc-shaped surface.

[0073] The embodiment can be seen that the matching frame 5 is installed on the movable end of the telescopic cylinder 4, and the matching frame 5 is formed with a clamping groove 51, and the flange frame body 3 is limitedly connected between the clamping groove 51.

[0074] The matching frame 5 is arranged to facilitate the installation of the flange frame body 3, and the connection mode is simple and convenient to use.

[0075] Embodiment 7:

[0076] The embodiment provides an extrusion head for cable plastic packaging, in addition to the technical solutions of the above embodiments, further has the following technical features.

[0077] The fixed frame 6 is arranged on the outer side wall surface of the first mold body 1, and the fixed frame 6 is provided with a connecting hole 61.

[0078] The embodiment can be seen that the fixed frame 6 is arranged on the outer side of the first mold body 1, so as to facilitate the installation of the first mold body 1.

[0079] Embodiment 8:

[0080] The embodiment provides an extrusion head for cable plastic packaging, in addition to the technical solutions of the above embodiments, further has the following technical features.

[0081] The connecting end 7 is arranged on the second mold body 2, and the extrusion hole 21 extends to the end face of the connecting end 7.

[0082] The embodiment can be seen that the fixed frame 6 is arranged on the outer side of the first mold body 1, so as to facilitate the installation of the first mold body 1.

[0083] The embodiments of the application are described above in combination with the drawings, and the embodiments and the features in the embodiments in the application can be combined with each other without conflict, the application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not limited, and those skilled in the art can make many forms under the inspiration of the application without departing from the purpose of the application and the scope protected by the claims, all of which belong to the protection of the application.

Claims

1. An extrusion head for cable coating, characterized in that, The utility model relates to a kind of extrusion die, including: First die body (1), the first die body (1) is provided with the through conical die hole (11); Second die body (2), the second die body (2) is conical, and is provided with extrusion hole (21), the second die body (2) is fitted in conical die hole (11), and the small end of the second die body (2) extends to the small end opening of conical die hole (11); Wherein, the second die body (2) is provided with multiple guide holes, multiple the guide holes are staggered on the second die body (2), and are distributed outside extrusion hole (21).

2. The extrusion head for cable coating according to claim 1, characterized in that, Guide hole includes: Core wire hole (22), the core wire hole (22) is distributed outside extrusion hole (21); Separation line hole (23), the separation line hole (23) is integrally formed on the wall surface of extrusion hole (21); Wherein, the separation line hole (23) is provided with one, and the rest guide holes are all core wire holes (22).

3. The extrusion head for cable coating according to claim 2, characterized in that it further comprises Including: Flange frame body (3), the flange frame body (3) is provided outside the port of the small end of conical die hole (11); Wherein, the guide hole closest to flange frame body (3) in multiple guide holes is separation line hole (23).

4. The extrusion head for cable coating according to claim 3, characterized in that The flange frame body (3) is movably connected on the first die body (1).

5. The extrusion head for cable coating according to claim 4, characterized in that it further comprises Including: Telescopic cylinder (4), the telescopic cylinder (4) is provided at the front end of first die body (1), and the flange frame body (3) is provided on the movable end of telescopic cylinder (4); Wherein, the movable end of telescopic cylinder (4) is towards extrusion hole (21).

6. The extrusion head for cable coating according to claim 5, characterized in that it further comprises Including: Matching frame (5), the matching frame (5) is provided on the movable end of telescopic cylinder (4), and the matching frame (5) is provided with clamping slot (51), and the flange frame body (3) is slidably connected on clamping slot (51); Wherein, the side of the matching frame (5) towards extrusion hole (21) is provided as arc surface.

7. The extrusion head for cable coating according to claim 6, characterized in that it further comprises Including: Fixed frame (6), the fixed frame (6) is provided on the outer wall surface of first die body (1), and the fixed frame (6) is provided with connecting hole (61).

8. The extrusion head for cable coating according to claim 7, characterized in that it further comprises Including: Connection end (7), the connection end (7) is provided on the second die body (2), and the extrusion hole (21) extends to the end surface of connection end (7).

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