CN217289835U

CN217289835U - Tee pipe fitting forming device

Info

Publication number: CN217289835U
Application number: CN202123416016.5U
Authority: CN
Inventors: 余铁均; 朱张泉; 蒋利荣; 高杰; 骆宇峰; 金淼龙; 吴家文; 郭周镔
Original assignee: Zhejiang Hailiang Co Ltd
Current assignee: Zhejiang Hailiang Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-26
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a tee bend pipe fitting forming device, its technical scheme who solves technical problem includes mould, lower mould, first extrusion head, second extrusion head, go up mould and lower mould and cooperate the use in pairs, set up the first arc wall that is used for placing the pipe fitting blank on the lower mould, go up the mould on seted up with the corresponding second arc wall of first arc wall, first arc wall and second arc wall form the extrusion hole of placing the pipe fitting blank after the butt joint, set up on the lower mould with the shaping hole of first arc wall intercommunication, first extrusion head and second extrusion head distribute at the both ends in extrusion hole, the center of second extrusion head is equipped with pressure liquid pipe. The utility model discloses can reduce and connect piling up at the tee bend at the extrusion in-process material, reduce material consumption, improve product appearance quality.

Description

Tee pipe fitting forming device

Technical Field

The utility model belongs to the technical field of tee bend extrusion, especially tee bend pipe fitting forming device.

Background

When forming tee bend pipe fitting parison through the extrusion mode, need use the extrusion head to carry out the shutoff to the extrusion hole both ends, and outer wall support when providing the parison shaping switches on the effect, through leading into high-pressure liquid in to the extrusion hole, utilize the even pressure of liquid to make the blank extrusion of straight tube form tee bend pipe fitting type blank, at this in-process, the distance between the extrusion portion of current extrusion head and the sealing portion is longer, see former extrusion head structure picture 1, when forming tee bend parison like this, it is thicker to pile up the material at pipe fitting inner wall hookup location, in follow-up course of working, can form great step at the pipe fitting inner wall, not only influence product appearance, see former finished product picture 2, can cause the waste of certain degree simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tee bend pipe fitting forming device can reduce and reduce the material in extrusion process and reduce material consumption at the piling up at tee junction position, improves product appearance quality.

The utility model provides a tee bend pipe fitting forming device, its technical scheme who solves technical problem includes mould, lower mould, first extrusion head, second extrusion head, go up mould and lower mould and cooperate the use in pairs, set up in the first arc wall that is used for placing the pipe fitting blank on the lower mould, go up the mould on seted up with the corresponding second arc wall of first arc wall, first arc wall and second arc wall form the extrusion hole of placing the pipe fitting blank after the butt joint, seted up on the lower mould with the shaping hole of first arc wall intercommunication, first extrusion head and second extrusion head distribute at the both ends in extrusion hole, the center of second extrusion head is equipped with the pressure liquid pipe.

Preferably, the extrusion front end of the first extrusion head is provided with a conical extrusion part, the outer edge of the first extrusion head is provided with a sealing part which is positioned at the rear side of the extrusion part and is close to the extrusion part, and the outer diameter of the sealing part is larger than the diameter of the maximum part of the extrusion part.

Preferably, a conical extrusion part is arranged at the extrusion front end of the second extrusion head, a sealing part which is located at the rear side of the extrusion part and is close to the extrusion part is arranged on the outer edge of the second extrusion head, and the outer diameter of the sealing part is larger than the diameter of the maximum part of the extrusion part.

Preferably, the distance between the sealing part and the maximum end of the extrusion part is 2-3 mm.

Preferably, the edge positions of the small end and the large end of the extrusion part are both provided with fillets not smaller than 2 mm.

Preferably, a plurality of corresponding connecting holes and positioning pin holes are formed in the upper die and the lower die, the upper die and the lower die are positioned through pin shafts penetrating through the positioning pin holes and are fixedly connected through bolts penetrating through the connecting holes.

Preferably, bases are arranged at the rear ends of the first extrusion head and the second extrusion head.

In conclusion, the application the technical scheme of the utility model, following beneficial effect has at least:

1. through the change of the structure of the extrusion head, the material distribution is more uniform in the extrusion forming process, and the product quality is improved;

2. the weight of a single finished product is reduced, the appearance of the product is improved, and the waste of copper materials is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

FIG. 1 is a structural diagram of an original extrusion head of the present invention;

FIG. 2 is a schematic diagram of a raw product of the present invention;

FIG. 3 is an overall structure of the present invention;

FIG. 4 is a view of a second extrusion head according to the present invention;

fig. 5 is a schematic diagram of a new product of the present invention.

In the figure; 1. an upper die; 2. a lower die; 3. a first extrusion head; 4. a second extrusion head; 5. extruding the hole; 6. forming holes; 7. a pressure liquid pipe; 8. a pressing section; 9. a sealing part; 10. a positioning pin hole; 11. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a tee pipe fitting forming device, as shown in figures 1-5, comprising an upper die 1, a lower die 2, a first extrusion head 3 and a second extrusion head 4, wherein the upper die 1 and the lower die 2 are matched in pairs for use, a first arc-shaped groove for placing pipe fitting blanks is arranged on the lower die 2, a second arc-shaped groove corresponding to the first arc-shaped groove is arranged on the upper die 1, an extrusion hole 5 for placing pipe fitting blanks is formed after the first arc-shaped groove and the second arc-shaped groove are butted, a forming hole 6 communicated with the first arc-shaped groove is arranged on the lower die 2, the first extrusion head 3 and the second extrusion head 4 are distributed at two ends of the extrusion hole 5, a pressure liquid pipe 7 is arranged at the center of the second extrusion head 4, when in operation, straight pipe blanks are firstly placed in the extrusion hole 5, and two ends of the straight pipe blanks are blocked by the first extrusion head 3 and the second extrusion head 4, high-pressure liquid is filled into the inner hole of the straight pipe blank through a pressure liquid pipe 7 in the second extrusion head 4, and under the action of self uniform pressure of the high-pressure liquid and the action of internal supporting force of the first extrusion head 3 and the second extrusion head 4, the material of the straight pipe blank can be extruded into a forming hole 6 of the lower die 2 to form the tee joint blank.

Be equipped with conical extrusion portion 8 in the extrusion front end of first extrusion head 3 in this application, be equipped with in the outer fringe of first extrusion head 3 and be located 8 rear sides of extrusion portion and be close to the sealing 9 that 8 settings of extrusion portion, the external diameter of sealing 9 is greater than the diameter at 8 biggest positions of extrusion portion. The extrusion front end of second extrusion head 4 is equipped with conical extrusion portion 8, be equipped with on the outer fringe of second extrusion head 4 and be located extrusion portion 8 rear side and be close to the sealing 9 that extrusion portion 8 set up, the external diameter of sealing 9 is greater than the diameter at the 8 biggest positions of extrusion portion. The design of the extrusion part 8 with a conical structure can better realize the sealing of the end of the straight pipe blank, and meanwhile, the insertion and the extension are not too long, wherein the distance between the sealing part 9 (forming a certain sealing effect with the extrusion hole 5) and the maximum end of the extrusion part 8 is 2-3 mm; the production sheet formed by such an extrusion head is shown in fig. 5.

In order to facilitate the insertion and better separation of the extrusion head, the small end and the large end of the extrusion part 8 are provided with round corners not smaller than 2 mm.

In order to realize the better connecting effect of the upper die 1 and the lower die 2, a plurality of corresponding connecting holes 11 and positioning pin holes 10 are formed in the upper die 1 and the lower die 2, the upper die 1 and the lower die 2 are positioned through pin shafts penetrating through the positioning pin holes 10, and the upper die and the lower die are fixedly connected through bolts penetrating through the connecting holes 11.

The rear ends of the first extrusion head 3 and the second extrusion head 4 are respectively provided with a base, so that the movement of the extrusion heads can be controlled conveniently.

In summary, the utility model can make the material distribution more uniform in the extrusion forming process by changing the structure of the extrusion head, thereby improving the product quality; the weight of a single finished product is reduced, the appearance of the product is improved, and the waste of copper materials is reduced.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The tee pipe fitting forming device is characterized by comprising an upper die, a lower die, a first extrusion head and a second extrusion head, wherein the upper die and the lower die are matched in pairs for use, a first arc-shaped groove used for placing pipe fitting blanks is formed in the lower die, a second arc-shaped groove corresponding to the first arc-shaped groove is formed in the upper die, an extrusion hole for placing the pipe fitting blanks is formed after the first arc-shaped groove and the second arc-shaped groove are butted, a forming hole communicated with the first arc-shaped groove is formed in the lower die, the first extrusion head and the second extrusion head are distributed at two ends of the extrusion hole, and a pressure liquid pipe is arranged at the center of the second extrusion head.

2. The tee pipe forming device of claim 1, wherein the extrusion front end of the first extrusion head is provided with a conical extrusion part, the outer edge of the first extrusion head is provided with a sealing part which is positioned at the rear side of the extrusion part and is arranged close to the extrusion part, and the outer diameter of the sealing part is larger than the diameter of the largest part of the extrusion part.

3. The tee pipe forming device of claim 1, wherein the extrusion front end of the second extrusion head is provided with a conical extrusion part, the outer edge of the second extrusion head is provided with a sealing part which is positioned at the rear side of the extrusion part and is arranged close to the extrusion part, and the outer diameter of the sealing part is larger than the diameter of the largest part of the extrusion part.

4. The tee forming apparatus of claim 2 or 3, wherein the distance between the seal portion and the maximum end of the extrusion portion is 2-3 mm.

5. The tee forming apparatus of claim 4, wherein the small end and the large end of the extrusion are each provided with a fillet of not less than 2 mm.

6. The tee pipe fitting forming device of claim 1, wherein a plurality of corresponding connecting holes and positioning pin holes are formed in the upper die and the lower die, and the upper die and the lower die are positioned through pin shafts penetrating through the positioning pin holes and fixedly connected through bolts penetrating through the connecting holes.

7. The tee fitting forming apparatus of claim 1, wherein a base is provided at each of the rear ends of the first and second extrusion heads.