CN216501972U

CN216501972U - Necking die for bicycle pipe drawing

Info

Publication number: CN216501972U
Application number: CN202121694443.7U
Authority: CN
Inventors: 张朝辉; 季洪灿; 盛艳明
Original assignee: Kunshan Saikeman Electric Technology Co ltd
Current assignee: Kunshan Saikeman Electric Technology Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-05-13
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a necking die for a bicycle pipe drawing tube, which comprises a die column, wherein the head of the die column is provided with a necking joint, the necking joint comprises at least two necking sections, the caliber of each necking section is gradually reduced from the tail to the head, and the side surface inclination rate of each necking section is inconsistent. The utility model has the beneficial effects that: according to the technical scheme, the necking of pipe fittings with different outer diameters can be realized by one set of necking dies; the design, the manufacturing period and the cost of a necking die are reduced; the die change in the manufacturing process is reduced.

Description

Necking die for bicycle pipe drawing

Technical Field

The utility model relates to a bicycle pipe fitting production tool, in particular to a necking die for a bicycle pipe fitting extraction pipe.

Background

At present, before a pipe fitting is drawn out, different special necking dies are designed according to different requirements of the outer diameter of the pipe fitting; the use is relatively complicated, and different dies need to be replaced according to requirements, so that a necking die suitable for the bicycle pipe drawing pipes with various calibers needs to be developed, and the technical scheme which is the same as that of the utility model is not found through retrieval.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a necking die for extracting a bicycle pipe fitting with various calibers, and solves one or more of the prior art problems.

In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a bicycle pipe fitting is taken out and is used throat mould which innovation point lies in: the die comprises a die column, wherein the head of the die column is provided with a necking joint, the necking joint comprises at least two necking sections, each necking section is gradually reduced from the tail to the head caliber, and the side surface inclination rate of each necking section is inconsistent.

In some embodiments, the throat joint includes a first throat section having a tip diameter that corresponds to a diameter of the die post, a second throat section having a tip diameter that corresponds to a diameter of a head end of the first throat section, and a third throat section having a tip diameter that corresponds to a diameter of a head end of the second throat section.

In some embodiments, the die post, the first throat section, the second throat section, and the third throat section are integrally formed.

In some embodiments, the necking joint comprises a first necking section, a second necking section and a third necking section, a first thread groove is formed in the end portion of the mold column, a first bolt matched with the first thread groove is arranged at the tail end of the first necking section, a second thread groove is formed in the head portion of the first necking section, a second bolt matched with the second thread groove is arranged at the tail end of the second necking section, a third thread groove is formed in the head end of the second necking section, and a third bolt matched with the third thread groove is arranged at the tail end of the third necking section.

The utility model has the beneficial effects that: according to the technical scheme, the necking of pipe fittings with different outer diameters can be realized by one set of necking dies; the design, the manufacturing period and the cost of a necking die are reduced; and the die change in the manufacturing process is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic structural view of a first embodiment of a necking die for extracting a bicycle pipe fitting.

Fig. 2 is a schematic structural view of a second embodiment of the necking die for extracting the bicycle pipe fitting.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1, an embodiment of the present invention includes:

the utility model provides a bicycle pipe fitting is taken out and is used throat mould, includes mould post 1, and the head of mould post 1 is equipped with the throat and connects, and the throat connects including two at least throat sections, each the throat section reduces from afterbody to head bore gradually, each the side slope rate of throat section is inconsistent.

In some embodiments, the throat joint includes a first throat section 2, a second throat section 3, and a third throat section 4, the diameter of the end of the first throat section 2 being consistent with the diameter of the die column 1, the diameter of the end of the second throat section 3 being consistent with the diameter of the head end of the first throat section 2, and the diameter of the end of the third throat section 4 being consistent with the diameter of the head end of the second throat section 3.

In some embodiments, the die post 1, the first throat section 2, the second throat section 3, and the third throat section 4 are integrally formed.

Example two

As shown in fig. 2, the embodiment of the present invention includes:

the throat connects including first throat section 2, second throat section 3 and third throat section 4, the tip of mould post 1 is equipped with first thread groove, the end of first throat section 2 is equipped with the first bolt 21 that uses with first thread groove cooperation, the head of first throat section 2 is equipped with second thread groove, the end of second throat section 3 is equipped with the second bolt 31 that uses with second thread groove cooperation, the head end of second throat section 3 is equipped with third thread groove, the end of third throat section 4 is equipped with third bolt 41 that uses with third thread groove cooperation.

According to the technical scheme, the necking of pipe fittings with different outer diameters can be realized by one set of necking dies; the design, the manufacturing period and the cost of a necking die are reduced; the die change in the manufacturing process is reduced.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a bicycle pipe fitting is taken out and is used throat mould which characterized in that: including mould post (1), the head of mould post (1) is equipped with the throat and connects, the throat connects including two at least throat sections, each the throat section reduces from afterbody to head bore gradually, each the side slope rate of throat section is inconsistent.

2. The necking die for the bicycle pipe drawing tube of claim 1, wherein: the necking joint comprises a first necking section (2), a second necking section (3) and a third necking section (4), wherein the diameter of the tail end of the first necking section (2) is consistent with the diameter of a mold column (1), the diameter of the tail end of the second necking section (3) is consistent with the diameter of the head end of the first necking section (2), and the diameter of the tail end of the third necking section (4) is consistent with the diameter of the head end of the second necking section (3).

3. The necking die for the bicycle pipe drawing tube of claim 2, wherein: the die column (1), the first necking section (2), the second necking section (3) and the third necking section (4) are integrally formed.

4. The necking die for the bicycle pipe drawing tube of claim 1, wherein: the throat connects and includes first throat section (2), second throat section (3) and third throat section (4), the tip of mould post (1) is equipped with first thread groove, the end of first throat section (2) is equipped with first bolt (21) that use with first thread groove cooperation, the head of first throat section (2) is equipped with second thread groove, the end of second throat section (3) is equipped with second bolt (31) that use with second thread groove cooperation, the head end of second throat section (3) is equipped with third thread groove, the end of third throat section (4) is equipped with third bolt (41) that use with third thread groove cooperation.