CN201364779Y

CN201364779Y - Doubling extrusion mold

Info

Publication number: CN201364779Y
Application number: CNU2009200362204U
Authority: CN
Inventors: 曹慧华; 刘建平; 朱克元
Original assignee: CHANGZHOU NEW EAST CABLE Co Ltd
Current assignee: CHANGZHOU NEW EAST CABLE Co Ltd
Priority date: 2009-03-09
Filing date: 2009-03-09
Publication date: 2009-12-16
Anticipated expiration: 2019-03-09

Abstract

The utility model relates to a doubling extrusion mold, which comprises a mold sleeve (1) and an internal mold (2), wherein the internal mold (2) is provided with a mold core hole (2-1), the mold sleeve (1) is provided with a mold sleeve hole (1-1) corresponding with the mold core hole (2-1). The utility model is characterized in that a mold pipe (3) is arranged on the mold core hole (2-1) on the front end surface of the internal mold (2), the mold pipe (3) is combined with the internal mold (2) to form a whole, and the inner hole of the mold pipe (3) is communicated with the mold core hole (2-1). In the process of extrusion, if decentration occurs, the breadth of the mold pipe can be changed manually, as a matter of fact, the center distance of the mold pipe is changed, the thickness distribution of the finished product is changed under the original fluid pressure. As a result, the quality of the finished product can be improved with simple method without the need to re-produce mold.

Description

The doubling extrusion die

Technical field

The utility model relates to a kind of doubling extrusion die, belongs to the mould applications of making cable.

Background technology

In the prior art, interior external mold normally can centrally aligned when making, but during actual production, the nib place of external mold extrudes the pressure of direction because of being subjected to charging aperture, makes the nib place discontinuity of external mold, after sheath was extruded, 100% eccentric phenomenon can take place on inspection.If take place eccentricly, the internal mold of can only reforming so not only wastes time, and the mould of making again differs and meets the demands surely.

Summary of the invention

The purpose of this utility model provides a kind of doubling extrusion die, and this mould need not to make again mould when off-centre takes place.

The technical scheme that realizes above-mentioned purpose is: a kind of doubling extrusion die, comprise die sleeve and internal mold, has the core rod hole on the internal mold, have the die sleeve hole corresponding on the die sleeve with the core rod hole, the place, front end face upper mold core hole of internal mold has the mould pipe, mould pipe and interior integrally molded, and the endoporus of mould pipe is communicated with the core rod hole.

After adopting technique scheme, because place, the front end face upper mold core hole of internal mold has the mould pipe, mould pipe and interior integrally molded, and the endoporus of mould pipe is communicated with the core rod hole, if therefore eccentric situation takes place in extrusion, can change the width of mould pipe by hand, be actually the centre distance that has changed the mould pipe, make under the pressure condition of original fluid the thickness distribution that changes finished product.Not needing to make again under the situation of mould, just can improve the quality of finished product with simple way.

Description of drawings

Fig. 1 is a user mode structure chart of the present utility model;

Fig. 2 is the cross-sectional schematic of internal mold of the present utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the cross-sectional schematic of die sleeve of the present utility model;

Fig. 5 is the left view of Fig. 4.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～5, a kind of doubling extrusion die, comprise die sleeve 1 and internal mold 2, has core rod hole 2-1 on the internal mold 2, have the die sleeve hole 1-1 corresponding on the die sleeve 1 with core rod hole 2-1, the 2-1 place, front end face upper mold core hole of internal mold 2 has mould pipe 3, and mould pipe 3 is made one with internal mold 2, and the endoporus of mould pipe 3 is communicated with core rod hole 2-1.

Operation principle of the present utility model is as follows:

As shown in Figure 1, during use, mould pipe 3 front ends on the internal mold 2 are near die sleeve hole 1-1, gap between die sleeve 1 and the internal mold has formed into mouth 5, conductor 4 enters internal mold 2 from core rod hole 2-1, and extrudes from the endoporus of mould pipe 3, then and advanced mouthful 5 material that enter and extruded from the die sleeve hole 1-1 of die sleeve 1 together, wrap insulating material on the conductor 4 after extruding, formed cable.

Claims

1, a kind of doubling extrusion die, comprise die sleeve (1) and internal mold (2), has core rod hole (2-1) on the internal mold (2), have the die sleeve hole (1-1) corresponding on the die sleeve (1) with core rod hole (2-1), it is characterized in that: mould pipe (3) is located to have in the front end face upper mold core hole (2-1) of internal mold (2), mould pipe (3) is made one with internal mold (2), and the endoporus of mould pipe (3) is communicated with core rod hole (2-1).