CN216226749U

CN216226749U - Die for producing four-way pipe

Info

Publication number: CN216226749U
Application number: CN202122834425.0U
Authority: CN
Inventors: 陈宇峰
Original assignee: Jiangyin Zhongnan Heavy Industry Holdings Co ltd
Current assignee: Jiangyin Zhongnan Heavy Industry Holdings Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-08
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a die for producing a four-way pipe, which comprises an upper die and a lower die, wherein the lower die and the lower die are matched to form a main pipe cavity and a first branch pipe cavity which are communicated with each other, a second branch pipe cavity is arranged on the upper die or the lower die, and the second branch pipe cavity is communicated with the main pipe cavity.

Description

Die for producing four-way pipe

Technical Field

The utility model relates to a die, in particular to a die for producing a four-way pipe.

Background

The cross joint is widely applied to chemical industry, petroleum, metallurgy, gas, electric power, shipbuilding, air conditioning, automobiles, buildings, thermal pipelines, vacuum equipment and various industrial pipelines. The common four-way main pipe and branch pipe are generally crossed vertically in a cross shape, and the pipeline connection requirement under complex working conditions is difficult to meet. Therefore, two straight pipes of the four-way pipe are required to be manufactured, and a common forging mode is a pouring mode generally, but the forging mode is complex in process, low in efficiency and high in cost.

Therefore, it is necessary to provide a mold for producing a four-way pipe to solve the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a die for producing a four-way pipe, which can simplify the steps of producing the four-way pipe, improve the processing efficiency and reduce the processing cost.

In order to achieve the purpose, the utility model provides a die for producing a four-way pipe, which comprises an upper die and a lower die, wherein the lower die and the lower die are matched to form a main pipe cavity and a first branch pipe cavity which are communicated with each other, and the upper die or the lower die is provided with a second branch pipe cavity which is communicated with the main pipe cavity.

In one or more embodiments, the second branch lumen is in communication with the first branch lumen, and the second branch lumen is perpendicular to the first branch lumen.

In one or more embodiments, a positioning column is disposed on a side of the lower mold facing the upper mold, and a positioning hole for receiving the positioning column is disposed on the upper mold.

In one or more embodiments, the upper mold and/or the lower mold is provided with an open mold cavity.

In one or more embodiments, the inner walls of the main lumen, the first branch lumen, and the second branch lumen are at least partially coated with a lubricious layer.

In one or more embodiments, the thickness of the smoothing layer is 0.5 to 2 μm.

Compared with the prior art, the die for producing the four-way pipe has the advantages of simplifying the steps of producing the four-way pipe, improving the processing efficiency and reducing the processing cost.

Drawings

FIG. 1 is a schematic view of a seamless three-dimensional four-way pipe fitting according to an embodiment of the utility model;

FIG. 2 is a solid view of a mold for producing a four-way pipe according to an embodiment of the utility model;

fig. 3 is an enlarged view at a in fig. 2.

Description of the main reference numerals:

1. an upper die; 2. a lower die; 3. a main lumen; 4. a first branch lumen; 5. a second branch lumen; 6. a positioning column; 7. opening a mold cavity; 8. a smoothing layer; 9. a seamless three-dimensional four-way pipe fitting; 91. a main pipe; 92. and (4) branch pipes.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1, the four-way pipe is a seamless three-dimensional four-way pipe fitting 9 which needs to be processed and produced.

As shown in fig. 2, the mold for producing a four-way pipe according to an embodiment of the present invention includes an upper mold 1 and a lower mold 2 which are fitted to each other.

In a specific embodiment, the upper die 1 and the lower die 2 are matched to form a main pipe cavity 3 and a first branch pipe cavity 4 after being matched with each other. The upper die 1 or the lower die 2 is provided with a second branch pipe cavity 5. The first branch pipe cavity 4 and the second branch pipe cavity 5 are communicated with the main pipe cavity 3. In the processing process, a steel pipe or a metal pipe can be directly placed in the main pipe cavity 3, then the upper die 1 and the lower die 2 are closed and compressed, the steel pipe or the metal pipe is filled with liquid, the steel pipe or the metal pipe and the liquid in the steel pipe or the metal pipe are extruded from the two ends of the main pipe cavity 3 by using a hydraulic machine, and therefore the steel pipe or the metal pipe is directly deformed into a four-way structure under the action of pressure.

The liquid in the above process may be water, oil or other liquid. When the water is used, the pollution to the environment is less, and the cost is lower.

In one embodiment, the second branched lumen 5 is in communication with the first branched lumen 4, and the second branched lumen 5 is perpendicular to the first branched lumen 4. So that the two branch pipes 92 of the four-way pipe formed by the second branch pipe cavity 5 and the first branch pipe cavity 4 can be perpendicular to each other.

In a specific embodiment, a positioning column 6 is disposed on one side of the lower die 2 facing the upper die 1, and a positioning hole is disposed on the upper die 1. The positioning column 6 can be inserted into the positioning hole, so that the positioning function is realized when the upper die 1 and the lower die 2 are closed. The number of the positioning columns 6 and the positioning holes can be multiple groups, so that when the upper die 1 and the lower die 2 are closed, the upper die 1 and the lower die 2 are prevented from rotating and deviating relatively.

In a specific embodiment, the upper die 1 and/or the lower die 2 are provided with a die cavity 7. Namely, the die opening groove 7 can be arranged on the upper die 1 or the lower die 2, and the die opening grooves 7 can be arranged on the upper die 1 and the lower die 2, so that the upper die 1 and the lower die 2 can be separated conveniently after the machining is finished.

In one embodiment, the inner walls of the main lumen 3, the first branch lumen 4 and the second branch lumen 5 are at least partially coated with a smooth layer 8. Because in the course of working, need to extrude steel pipe or metal pipe and place both ends in main lumen 3, make the periphery wall in the middle part of steel pipe or metal pipe under the pressure of liquid to second bronchus chamber 5 and the inflation of first bronchus chamber 4 department, smooth layer 8 can play the inner wall frictional force that reduces steel pipe or metal pipe's periphery wall and main lumen 3, first bronchus chamber 4 and second bronchus chamber 5. Thus, the possibility of breakage of the steel pipe or the metal pipe due to friction between the outer peripheral wall of the steel pipe or the metal pipe and the inner walls of the main pipe cavity 3, the first branch pipe cavity 4, and the second branch pipe cavity 5 is reduced.

In one embodiment, the thickness of the smoothing layer 8 is 0.5 to 2 μm. And arc ion plating can be adopted to prepare the smooth layer 8, so that the inner wall surfaces of the main cavity 3, the first branch cavity 4 and the second branch cavity 5 are smooth and flat, and liquid drops are few. Thereby improving its smoothness.

The working principle of the die for producing a four-way pipe of the present invention will be described in detail below:

in the processing process, firstly, a steel pipe or a metal pipe is directly placed in a main pipe cavity 3, then an upper die 1 and a lower die 2 are closed and pressed tightly, the steel pipe or the metal pipe is filled with liquid, the steel pipe or the metal pipe and the liquid in the steel pipe or the metal pipe are extruded from two ends of the main pipe cavity 3 by using a hydraulic machine, so that the steel pipe or the metal pipe is expanded towards the first branch pipe cavity 4 and the second branch pipe cavity 5 from the side walls of the steel pipe or the metal pipe positioned in the first branch pipe cavity 4 and the second branch pipe cavity 5 under the action of the pressure of the liquid, the steel pipe or the metal pipe is deformed into a four-way rigid pipe or metal pipe structure, then the upper die 1 and the lower die 2 are disassembled, two pipe caps on the four-way steel pipe or the metal pipe structure are cut off, and then the whole product is subjected to finish machining, and the seamless three-dimensional four-way pipe fitting 9 made of steel or metal can be obtained.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. The utility model provides a mould for producing four-way pipe, its characterized in that includes mould and lower mould, lower mould and lower mould cooperation form the chamber of being responsible for and the first chamber of being branched that communicate each other, go up and seted up the second chamber of being branched on mould or the lower mould, and this second chamber of being branched with be responsible for the chamber and be linked together.

2. A mold for producing a four-way tube according to claim 1, wherein the second branch tube cavity is communicated with the first branch tube cavity, and the second branch tube cavity is perpendicular to the first branch tube cavity.

3. A mold for producing a four-way pipe as claimed in claim 1, wherein the lower mold is provided with positioning posts on a side thereof facing the upper mold, and the upper mold is provided with positioning holes for receiving the positioning posts.

4. A die for producing a cross pipe as claimed in claim 1, wherein the upper die and/or the lower die is provided with a die cavity.

5. A die for producing a four-way pipe as claimed in claim 1, wherein the inner walls of the main lumen, the first branch lumen and the second branch lumen are at least partially coated with a smooth layer.

6. A die for producing a four-way pipe according to claim 5, wherein the thickness of the smooth layer is 0.5 to 2 μm.