CN213919574U

CN213919574U - Plastic pipe stretching device

Info

Publication number: CN213919574U
Application number: CN202022370406.2U
Authority: CN
Inventors: 陈厚忠
Original assignee: Wuhan Kingbull Economic Development Co Ltd
Current assignee: Wuhan Kingbull Economic Development Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-08-10
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a plastic pipe stretching device, which comprises an extruder die, a connecting pipe, a heater and a fitting piece; the connecting pipe penetrates through the heater and is connected between the extruder die and the matching piece, the extruder die is used for injection molding of plastic pipes, and the matching piece is used for shaping the plastic pipes injection molded by the extruder die. Can stretch so that the wall thickness attenuation of tubular product pipe wall reaches the wall thickness of tubular product standard specification to plastics tubular product, can also contact through fitting piece and plastics tubular product inner wall for the thickness of plastics tubular product keeps the uniformity, avoids the problem of easy fracture because of the thickness inconsistency of plastics tubular product.

Description

Plastic pipe stretching device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a tubular product processing technology field especially relates to a plastics tubular product stretching device.

[ background of the invention ]

In the application of life and industry, the plastic pipe is more and more favored due to the environmental protection and safety, and plays an increasingly important role in the pipeline industry. However, plastic tubing still suffers from certain drawbacks. In a low-temperature environment, the plastic pipe is brittle and easy to break. In order to improve the brittleness of the plastic pipe at low temperature, various modifying and toughening methods such as annealing, stretching treatment and the like are carried out.

In view of the above, it is desirable to provide a new plastic pipe stretching device to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims at providing a plastics tubular product stretching device can stretch so that the wall thickness attenuation of tubular product wall thickness reaches the wall thickness of plastics tubular product standard specification to plastics tubular product, can also make the thickness of plastics tubular product keep the uniformity, avoids the problem of easily breaking because of the thickness inconsistency of plastics tubular product.

In order to achieve the purpose, the utility model provides a plastic pipe stretching device, which comprises an extruder die 1, a connecting pipe 2, a heater 3 and a fitting piece 4; the connecting pipe 2 penetrates through the heater 3 and is connected between the extruder die 1 and the matching piece 4, the extruder die 1 is used for injection molding of the plastic pipe 5, and the matching piece 4 is used for shaping the plastic pipe 5 injection molded by the extruder die 1.

Preferably, the extruder die 1 includes a die 11 and a core die 12; the mouth mold 11 is provided with a material passing hole 111, and the core mold 12 is inserted into the material passing hole 111 and forms a shaping channel 112 with the inner wall of the material passing hole 111 of the mouth mold 11.

Preferably, the core mold 12 is connected to the connection pipe 2, and a connection pin 121 is provided at a connection point of the core mold 12 and the connection pipe 2.

Preferably, the fitting element 4 comprises a guiding section 41, a tail section 42 and a shaping section 43 connected between the guiding section 41 and the tail section 42.

Preferably, the guide section 41 is in a truncated cone shape and includes a leading end 411 and a connecting end 412 far away from the leading end 411, and the size of the connecting end 412 is larger than that of the leading end 411; the shaping segment 43 is cylindrical and is connected with the connecting end 412; the tail section 42 is cylindrical and has a size smaller than that of the shaping section 43.

Preferably, the plastic pipe stretching device further comprises a water tank 6, and the water tank 6 is arranged adjacent to the fitting piece 4.

Preferably, the connecting pipe 2 is a seamless stainless steel pipe.

Compared with the prior art, the utility model provides a pair of plastics tubular product stretching device, beneficial effect lies in: can stretch so that the wall thickness attenuation of tubular product pipe wall reaches the wall thickness of tubular product standard specification to plastics tubular product, can also contact through fitting piece and plastics tubular product inner wall for the thickness of plastics tubular product keeps the uniformity, avoids the problem of easy fracture because of the thickness inconsistency of plastics tubular product.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of the plastic pipe stretching device provided by the present invention.

Fig. 2 is a cross-sectional view of the plastic pipe stretching device shown in fig. 1.

Fig. 3 is an enlarged view of the region a shown in fig. 2.

Fig. 4 is an enlarged view of the region B shown in fig. 2.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1 to 4, the present invention provides a plastic pipe stretching device, which includes an extruder die 1, a connecting pipe 2, a heater 3 and a fitting member 4; the connecting pipe 2 penetrates through the heater 3 and is connected between the extruder die 1 and the matching piece 4, the extruder die 1 is used for injection molding of the plastic pipe 5, and the matching piece 4 is used for shaping the plastic pipe 5 injection molded by the extruder die 1. In the present embodiment, the connection pipe 2 is a seamless stainless steel pipe.

Further, the extruder die 1 includes a die 11 and a core die 12; the mouth mold 11 has a material passing hole 111, the core mold 12 is inserted into the material passing hole 111, a shaping channel 112 is formed between the core mold and the inner wall of the material passing hole 111 of the mouth mold 11, and a polymer melt for manufacturing a plastic pipe flows out from the shaping channel 112.

Further, the core mold 12 is connected to the connection pipe 2, and a connection pin 121 is disposed at a connection position of the core mold 12 and the connection pipe 2.

Further, the fitting element 4 includes a guiding section 41, a tail section 42, and a shaping section 43 connected between the guiding section 41 and the tail section 42. In this embodiment, the guide section 41 is in a truncated cone shape and includes a leading end 411 and a connecting end 412 far away from the leading end 411, and the size of the connecting end 412 is larger than that of the leading end 411; the shaping segment 43 is cylindrical and is connected with the connecting end 412; the tail section 42 is cylindrical and smaller than the shaping section 43, and the tail section 42 is provided with threads.

Further, plastics tubular product stretching device still includes water tank 6, water tank 6 with fitting piece 4 is adjacent to be set up, water tank 6 is used for the cooling for plastics tubular product 5.

During the use, behind the injection moulding's of extruder mould 1 along connecting pipe 2 plastics tubular product 5, plastics tubular product 5 cover was located this moment on connecting pipe 2, heater 3 heats plastics tubular product 5 and makes plastics tubular product 5 become soft, and the horizontal pulling this moment connecting pipe 2 makes connecting pipe 2 drive fitting piece 4 horizontal motion, fitting piece 4 passes plastics tubular product 5 and fitting piece 4's plastic section 43 and the inner wall contact of plastics tubular product 5 with tensile plastics tubular product 5 for the length of plastics tubular product 5 is elongated or the external diameter increase, then transfers plastics tubular product 5 after the plastic to water tank 6 through the tractor and cools down.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A plastic pipe stretching device is characterized by comprising an extruder die (1), a connecting pipe (2), a heater (3) and a fitting piece (4); the connecting pipe (2) penetrates through the heater (3) and is connected between the extruder die (1) and the matching piece (4), the extruder die (1) is used for injection molding of the plastic pipe (5), and the matching piece (4) is used for shaping the plastic pipe (5) which is injection molded by the extruder die (1).

2. The plastic pipe stretching apparatus as claimed in claim 1, wherein the extruder die (1) comprises a die (11) and a core die (12); the mouth mold (11) is provided with a material passing hole (111), and the core mold (12) is inserted into the material passing hole (111) and forms a shaping channel (112) with the inner wall of the material passing hole (111) of the mouth mold (11).

3. The plastic pipe stretching device according to claim 2, wherein the core mold (12) is connected to the connection pipe (2), and a connection pin (121) is provided at a connection point of the core mold (12) and the connection pipe (2).

4. The plastic pipe stretching device as claimed in claim 1, wherein the fitting piece (4) comprises a guide section (41), a tail section (42), and a shaping section (43) connected between the guide section (41) and the tail section (42).

5. The plastic pipe stretching device as claimed in claim 4, wherein the guide section (41) is in the shape of a truncated cone and comprises a leading end (411) and a connecting end (412) remote from the leading end (411), the connecting end (412) having a size larger than the leading end (411); the shaping section (43) is cylindrical and is connected with the connecting end (412); the tail section (42) is cylindrical and has a size smaller than that of the shaping section (43).

6. The plastic pipe stretching device as claimed in claim 1, further comprising a water tank (6), wherein the water tank (6) is disposed adjacent to the fitting (4).

7. The plastic pipe stretching device according to claim 1, wherein the connecting tube (2) is a seamless stainless steel tube.