CN214203332U

CN214203332U - Mould for flat cable

Info

Publication number: CN214203332U
Application number: CN202023349120.2U
Authority: CN
Inventors: 隋明辉; 苑国梁; 陈国强
Original assignee: Changzhou Marine Cable Co ltd; Jiangsu Zhongli Group Co Ltd
Current assignee: Changzhou Marine Cable Co ltd; Jiangsu Zhongli Group Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-14
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a mould for flat cable, it will be: comprises an inner die and a die sleeve. The front end of the inner mold is provided with three round inner mold wire outlet holes which are sequentially arranged from left to right. The inner mould is provided with a guide hole with a backward opening, and the front port of the guide hole is smoothly connected with the corresponding part at the rear port of each inner mould wire outlet hole. The front part of the die sleeve is provided with a die sleeve wire outlet hole, the rear part of the die sleeve is provided with a die core hole with a backward opening, and the upper side and the lower side of the rear part of the die core hole are symmetrically provided with buffer zones which are recessed towards the front upper part and the front lower part. The cross section of the buffer area is V-shaped. The front port of the die core hole is smoothly connected with the corresponding part at the rear port of the die sleeve wire outlet hole.

Description

Mould for flat cable

Technical Field

The utility model relates to a cable manufacturing field, concretely relates to mould for flat cable.

Background

The cable mould is a key tool in a cable production line and is used for matching with an extruder to uniformly coat sheath materials (such as polyvinyl chloride, rubber and the like) on a conductor. The flat cable (called flat cable for short) is specially designed and manufactured for occasions where the cable is frequently bent, such as hoisting machinery, travelling cranes and the like, is not knotted when being bent, is folded neatly, and is widely applied to electrical connection among mobile electrical equipment in environments of power generation, metallurgy, chemical engineering, ports and the like. The extrusion pressure of the flat cable is not uniform due to the unequal lengths of the die orifice in the horizontal direction and the vertical direction. According to the melting fluidity of the sheath material, the smoother the flow channel is, the easier the material is to be discharged, so that the middle part of the flat cable bulges in the vertical direction, the coating quality of the product is influenced, and the material is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is favorable to improving the mould for flat cable of product cladding quality.

Realize the utility model discloses the basic technical scheme of purpose is: the utility model provides a mould for flat cable which structural feature is: comprises an inner die and a die sleeve. The front end of the inner mold is provided with three round inner mold wire outlet holes which are sequentially arranged from left to right. The inner mould is provided with a guide hole with a backward opening, and the front port of the guide hole is smoothly connected with the corresponding part at the rear port of each inner mould wire outlet hole.

The front part of the die sleeve is provided with a die sleeve wire outlet hole, the rear part of the die sleeve is provided with a die core hole with a backward opening, and the upper side and the lower side of the rear part of the die core hole are symmetrically provided with buffer zones which are recessed towards the front upper part and the front lower part. The cross section of the buffer area is V-shaped. The front port of the die core hole is smoothly connected with the corresponding part at the rear port of the die sleeve wire outlet hole.

The technical scheme based on the basic technical scheme is as follows: the upper side of the die sleeve wire outlet hole is provided with two continuous upper cambered surfaces protruding downwards, and the circle centers of the two upper cambered surfaces are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors. Two continuous lower cambered surfaces protruding upwards are arranged on the lower side of the die sleeve wire outlet hole, and the circle centers of the two lower cambered surfaces are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors.

The utility model discloses following beneficial effect has: (1) the utility model discloses a die sleeve of mould for flat cable is equipped with the buffer to reduce the velocity of flow of sheath material on upper and lower both sides horizontal direction, thereby reduce the discharge capacity of sheath material on the horizontal direction, make both sides more level and more smooth about the flat cable behind the cladding sheath, be favorable to material saving moreover. (1) The utility model discloses a die sleeve wire hole of die sleeve of mould for flat cable is equipped with cambered surface and lower cambered surface to further change the velocity of flow of sheath material, be favorable to further improving the planarization.

Drawings

Fig. 1 is a schematic structural view of the inner mold of the mold for flat cables according to the present invention.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is a schematic structural diagram of three conductors in the die sleeve of the die for flat cables of the present invention.

Fig. 4 is a schematic sectional view B-B in fig. 3.

Fig. 5 is a schematic cross-sectional view of C-C in fig. 3.

Fig. 6 is a schematic view of the direction K in fig. 4.

The reference numbers in the drawings are:

an inner mold 1, an inner mold wire outlet hole 1-1, a guide hole 1-2,

a die sleeve 2, a die sleeve wire outlet hole 2-1, an upper cambered surface 2-11, a lower cambered surface 2-12, a die core hole 2-2,

a conductor 10.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings. The description of the orientation of the utility model is performed according to the orientation shown in fig. 1, that is, the up-down left-right direction shown in fig. 1 is the up-down left-right direction of the description, the side towards which fig. 1 faces is the front side, and the side departing from fig. 1 is the rear side.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are used only for convenience in describing the present invention or simplifying the description, but do not indicate that a particular orientation must be provided.

(example 1)

Referring to fig. 1 to 6, the mold for flat cables of the present invention includes an inner mold 1 and a mold sleeve 2.

Referring to fig. 1 to 2, the inner mold 1 is a steel one-piece member. The front part of the inner mold 1 is in a duckbill shape with a small front part and a big back part. The rear part of the internal mold 1 is cylindrical and is provided with external threads. The front end of the inner mold 1 is provided with three round inner mold wire outlet holes 1-1, and the three inner mold wire outlet holes 1-1 are sequentially arranged from left to right. The internal mold 1 is provided with duckbill-shaped guide holes 1-2 with backward openings, and the front end openings of the guide holes 2-2 are smoothly connected with corresponding parts at the rear end openings of the internal mold wire outlet holes 1-1.

Referring to fig. 4 to 6, the die sleeve 2 is a steel integrated piece, a die sleeve wire outlet 2-1 is arranged at the front part of the die sleeve 2, two continuous upward cambered surfaces 2-11 protruding downwards are arranged on the upper side of the die sleeve wire outlet 2-1, and the circle centers of the two upward cambered surfaces 2-11 are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors 10. Two continuous lower cambered surfaces 2-12 protruding upwards are arranged on the lower side of the die sleeve wire outlet hole 2-1, and the circle centers of the two lower cambered surfaces 2-12 are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors 10.

The rear part of the die sleeve 2 is provided with a duckbill-shaped die core hole 2-2 with a backward opening, and the upper side and the lower side of the rear part of the die core hole 2-2 are symmetrically provided with buffer zones 2-3 which are recessed towards the upper front part and the lower front part. The cross section of the buffer zone 2-3 is V-shaped. The front port of the die core hole 2-2 is smoothly connected with the corresponding part at the rear port of the die sleeve wire outlet hole 2-1.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a mould for flat cable which characterized in that: comprises an inner die and a die sleeve; the front end of the inner mold is provided with three round inner mold wire outlet holes which are sequentially arranged from left to right; the inner mould is provided with a guide hole with a backward opening, and the front port of the guide hole is smoothly connected with the corresponding part at the rear port of each inner mould wire outlet hole;

the front part of the die sleeve is provided with a die sleeve wire outlet hole, the rear part of the die sleeve is provided with a die core hole with a backward opening, and the upper side and the lower side of the rear part of the die core hole are symmetrically provided with buffer zones which are recessed towards the front upper part and the front lower part; the section of the buffer area is V-shaped; the front port of the die core hole is smoothly connected with the corresponding part at the rear port of the die sleeve wire outlet hole.

2. The mold for flat cables as claimed in claim 1, wherein: two continuous upper cambered surfaces protruding downwards are arranged on the upper side of the die sleeve wire outlet hole, and the circle centers of the two upper cambered surfaces are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors; two continuous lower cambered surfaces protruding upwards are arranged on the lower side of the die sleeve wire outlet hole, and the circle centers of the two lower cambered surfaces are respectively positioned on a vertical line perpendicular to a connecting line of the circle centers of the two adjacent conductors.