CN215472940U

CN215472940U - Extrusion molding device of cable protection pipe

Info

Publication number: CN215472940U
Application number: CN202121290412.5U
Authority: CN
Inventors: 唐惠明; 唐建明; 蒋金
Original assignee: Zhejiang Cheng Feng Electrical Equipment Co ltd
Current assignee: Zhejiang Cheng Feng Electrical Equipment Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-11
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to the technical field of cable protection pipe processing, in particular to an extrusion molding device of a cable protection pipe, which comprises a screw extruder, wherein an extrusion molding die is arranged at the output end of the screw extruder, the extrusion molding die comprises a die sleeve and a die core, the die sleeve and the die core are fixedly connected through a plurality of connecting blocks, a cooling water channel is arranged in the die core, the cooling water channel extends to one end of a conical structure of the die core, a plurality of atomizing heads are uniformly arranged on the circumferential surface of the conical structure of the die core at annular intervals, the atomizing heads are communicated with the cooling water channel, a booster water pump is arranged outside the screw extruder, a high-pressure water pipe is connected onto the booster water pump, and the high-pressure water pipe is communicated with the cooling water channel. The extrusion molding device of the cable protection pipe can carry out quick water cooling on the inner wall of the cable protection pipe which is extruded and molded so as to ensure the quick cooling and shaping of the cable protection pipe and improve the quality of the cable protection pipe.

Description

Extrusion molding device of cable protection pipe

Technical Field

The utility model relates to the technical field of cable protection pipe processing, in particular to an extrusion molding device for a cable protection pipe.

Background

In the prior art, the cable protection pipe is processed by heating and extruding raw material master batches by a screw extruder and forming the raw material master batches through an extrusion die head at the end part of the extruder to form the cable protection pipe. However, since the thickness of the cable protection tube is relatively large, the extruded cable protection tube cannot be cooled in time, which causes the cable protection tube to be easily bent, the diameter of the cable protection tube to be changed, and the quality and the normal use performance of the cable protection tube to be affected.

SUMMERY OF THE UTILITY MODEL

The present invention provides an extrusion molding apparatus for a cable protection tube, which can cool the inner wall of the cable protection tube by water to achieve rapid cooling and shaping.

The utility model discloses an extrusion molding device of a cable protection pipe, which comprises a screw extruder, wherein an extrusion molding die is arranged at the output end of the screw extruder, the extrusion molding die comprises a die sleeve and a die core, the die core is of a columnar structure, the central axis of the die core is coincident with the central axis of the die sleeve, the die sleeve is fixedly connected with the die core through a plurality of connecting blocks, the connecting blocks are arranged at intervals on the circumferential surface of the die core and are uniformly spaced, the die core outside the output end of the screw extruder is of a conical structure, a cooling water channel is arranged inside the die core, the cooling water channel extends to one end of the conical structure of the die core, a plurality of atomizing heads are uniformly arranged at annular intervals on the circumferential surface of the conical structure of the die core, the atomizing heads are communicated with the cooling water channel, a booster water pump is arranged outside the screw extruder, and a high-pressure water pipe is connected onto the booster water pump, and the high-pressure water pipe sequentially penetrates through the screw extruder, the die sleeve and the connecting block and then enters the die core to be communicated with the cooling water channel.

In the scheme, the screw extruder is an extruder with a heating and melting function, which is commonly used in the existing pipeline production and processing. And an extrusion forming die is arranged at the output end of the screw extruder so as to realize the extrusion forming of the cable protection pipe. The mold core is fixed inside the die sleeve through the connecting block that the interval set up, just the connecting block is located the inboard mold core tip of screw extruder, so raw materials after the melting can pass behind the connecting block and form the tubular structure together in the polymerization, the surface of the cable protection pipe after the extrusion moulding can carry out quick cooling through external air, relative cooling rate is very fast, and the inside temperature of cable protection pipe is relatively higher, it is not ventilated, the cooling effect is poor, so adopt high pressure water pump to carry the cooling water to the cooling water course in through high pressure water pipe, spray the inner wall at the cable protection pipe through atomizer at last, the realization is carried out rapid cooling to the cable protection pipe inner wall, thereby the cable protection pipe after the extrusion moulding can be stereotyped fast, do not cause the crooked because of external force in the transportation process, the circumstances such as inside and outside diameter change, the quality of product is high.

The end part of the mold core positioned inside the screw extruder is of a conical structure, the end part of the mold core is butted with the center of the end part of the screw extruder, and the end part of the mold core and the center of the end part of the screw are in rotary connection. The design of this structure can make the mould core more firm at the inside fixed of die sleeve, especially is receiving raw materials extrusion in-process, and its stability is higher, and the inboard mould core tip of screw extruder is conical structure moreover, and it more does benefit to the raw materials distribution of the different circumferential positions of in-process of raw materials after the melting through the connecting block even, so is higher to cable protection tube's extrusion moulding's stability.

The extrusion molding device of the cable protection pipe can carry out quick water cooling on the inner wall of the cable protection pipe which is extruded and molded so as to ensure the quick cooling and shaping of the cable protection pipe and improve the quality of the cable protection pipe.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

as shown in fig. 1, the utility model discloses an extrusion molding device of a cable protection tube, comprising a screw extruder 1, wherein an extrusion molding die is arranged at the output end of the screw extruder 1, the extrusion molding die comprises a die sleeve 3 and a die core 4, the die core 4 is in a columnar structure, the central axis of the die core 4 is coincident with the central axis of the die sleeve 3, the die sleeve 3 is fixedly connected with the die core 4 through a plurality of connecting blocks 5, the connecting blocks 5 are arranged at intervals on the circumferential surface of the die core 4 at even intervals, the die core 4 at the outer side of the output end of the screw extruder 1 is in a conical structure, a cooling water channel 6 is arranged inside the die core 4, the cooling water channel 6 extends to one end of the conical structure of the die core 4, a plurality of atomizing heads 7 are uniformly arranged at annular intervals on the circumferential surface of the conical structure of the die core 4, and the atomizing heads 7 are communicated with the cooling water channel 6, a pressurizing water pump is arranged outside the screw extruder 1, a high-pressure water pipe 8 is connected to the pressurizing water pump, and the high-pressure water pipe 8 sequentially penetrates through the screw extruder 1, the die sleeve 3 and the connecting block 5 and then enters the die core 4 to be communicated with the cooling water channel 6.

The end part of the mold core 4 positioned inside the screw extruder 1 is in a conical structure, and the end part of the mold core is butted with the center of the end part of the screw 2 of the screw extruder 1 and is in rotary connection with the screw 2.

Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the utility model is not limited to the disclosed embodiments, but may be embodied or carried out in various forms without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an extrusion moulding device of cable protection pipe, includes screw extruder, characterized by: an extrusion forming die is arranged at the output end of the screw extruder and comprises a die sleeve and a die core, the mold core is of a columnar structure, the central axis of the mold core is coincident with the central axis of the mold sleeve, the mold sleeve is fixedly connected with the mold core through a plurality of connecting blocks, the connecting blocks are arranged on the circumferential surface of the mold core at intervals and are uniformly spaced, the mold core on the outer side of the output end of the screw extruder is of a conical structure, a cooling water channel is arranged in the mold core and extends to one end of the conical structure of the mold core, and a plurality of atomizing heads are uniformly arranged on the circumferential surface of the conical structure of the mold core at annular intervals, the atomizing heads are communicated with the cooling water channel, a booster water pump is arranged outside the screw extruder, a high-pressure water pipe is connected to the booster water pump, and the high-pressure water pipe sequentially penetrates through the screw extruder, the die sleeve and the connecting block and then enters the die core to be communicated with the cooling water channel.

2. The apparatus for extrusion molding of a cable protection tube according to claim 1, wherein: the end part of the mold core positioned inside the screw extruder is of a conical structure, the end part of the mold core is butted with the center of the end part of the screw extruder, and the end part of the mold core and the center of the end part of the screw are in rotary connection.