Three-way hot-press forming die suitable for branch pipes of various specifications

Abstract

The utility model relates to the technical field of hot-press processing, in particular to a tee hot-press forming die suitable for branch pipes of various specifications, which can be suitable for tee pipe fittings with different branch pipe diameters. A proper branch pipe mold can be selected to be mounted on the lower mold according to the diameter of the branch pipe on the three-way pipe fitting, the whole lower mold does not need to be replaced, use is convenient, cost is reduced, and practicability and reliability are high; comprising a lower die and an upper die, a variable-diameter branch pipe forming mechanism is arranged on the lower die and has the function of changing the diameter.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hot pressing processing especially relates to a tee hot press forming die suitable for various specifications of branch pipes. BACKGROUND

[0002] T-shaped tee pipe fittings refer to pipe fittings with three interfaces, which are usually produced by hot press forming. In the prior art, a utility model patent with the patent application number 202410780205.X discloses a hot press forming die for tee pipe fittings, which is mainly composed of an upper die and a lower die, and a circular groove for forming a branch pipe is arranged on the lower die. When producing tee pipe fittings, the heated straight pipe is placed on the lower die, then the upper die is lowered to make the upper die contact with the upper part of the straight pipe, so that the straight pipe is located between the upper die and the lower die. Then the lower part of the straight pipe is pressed down by the mandrel, so that the lower part of the middle part of the straight pipe is pressed into the circular groove of the lower die to form a branch pipe, thereby producing a tee pipe fitting. However, the following problems exist in the use process. Since the diameter of the circular groove on the lower die is fixed, when a large tee with different diameter branch pipes needs to be produced, the worker needs to replace the entire lower die with a lower die having a suitable circular groove diameter. Since the lower die of the large tee has a large volume, directly replacing the entire lower die is not only inconvenient, but also the cost of producing a new lower die is high. Therefore, a tee die suitable for different diameter branch pipes is needed. UTILITY MODEL CONTENTS

[0003] To solve the above technical problems, the utility model provides a tee pipe fitting which can be suitable for different branch pipe diameters. When producing tee pipe fittings with different branch pipe diameters, the appropriate branch pipe die can be selected according to the diameter of the branch pipe on the tee pipe fitting and installed on the lower die, without the need to replace the entire lower die, which is convenient to use, reduces the cost, and has high practicability and reliability.

[0004] The utility model discloses a tee mould, including lower mould and upper mould, upper mould is located above lower mould, be provided with variable diameter branch pipe forming mechanism on lower mould, and variable diameter branch pipe forming mechanism has the function of changing diameter, when producing tee through hot pressing method, first, according to the diameter of the upper branch pipe of tee, change the diameter of variable diameter branch pipe forming mechanism on lower mould, adjust the diameter of the branch pipe for forming on lower mould to the suitable diameter, then put the straight pipe after heating into lower mould, then make upper mould descend through the lifting of outside, make upper mould and lower mould contact, then make the lower part of straight pipe middle part press down through the selection of suitable mandrel, make the lower part of straight pipe middle part be pressed into variable diameter branch pipe forming mechanism on lower mould, further extrude the branch pipe in the middle part of straight pipe, make straight pipe be extruded into tee pipe fitting, then take out tee pipe fitting in lower mould and upper mould after cooling forming can be carried out, because the diameter on variable diameter branch pipe forming mechanism on lower mould can be adjusted, so it can adjust the diameter according to the outer diameter of the upper branch pipe of tee, can be applicable to the tee pipe fitting of different branch pipe diameter, when producing the tee pipe fitting of different branch pipe diameter, need not replace whole lower mould, convenient to use, low limitation, high economy and practicality.

[0005] Preferably, the variable diameter branch pipe forming mechanism includes a plurality of branch pipe molds, the lower mold is provided with a mounting groove, the mounting groove is used to install the branch pipe mold, the plurality of branch pipe molds are provided with a circular groove, and the diameters of the circular grooves of the plurality of branch pipe molds are different. One of the branch pipe molds is installed in the mounting groove of the lower mold, and the branch pipe mold and the lower mold are detachably connected. When producing the tee pipe fitting, a suitable branch pipe mold is selected according to the outer diameter of the branch pipe on the tee pipe fitting. The diameter of the circular groove of the selected branch pipe mold is the same as the outer diameter of the branch pipe on the tee pipe fitting. Then, the selected branch pipe mold is placed in the mounting groove of the lower mold. Then, the heated straight pipe is placed on the lower mold. Then, the upper mold is lowered, and the straight pipe is extruded by the lower mold and the upper mold. Then, a suitable mandrel is selected to press down the lower part of the middle part of the straight pipe. The lower part of the middle part of the straight pipe is pressed into the circular groove of the installed branch pipe mold on the lower mold. The lower part of the middle part of the straight pipe is pressed into the circular groove to form a branch pipe. The straight pipe is hot-pressed into a tee pipe fitting. Then, the hot-pressed tee is taken out of the lower mold, the upper mold, and the branch pipe mold. Because the number of branch pipe molds is multiple, and the diameters of the circular grooves of the plurality of branch pipe molds are different, a suitable branch pipe mold can be selected according to the diameter of the branch pipe on the tee pipe fitting when producing tees with different branch pipe diameters. The whole lower mold does not need to be replaced, which is convenient to use, reduces costs, and is high in practicality and reliability.

[0006] Preferably, the upper mold is provided with a plurality of mounting plates. The upper mold is installed on the hydraulic lifting mechanism outside through the mounting plates. When the upper mold is lifted, the hydraulic lifting mechanism lifts the upper mold through the mounting plates. The installation of the upper mold is facilitated.

[0007] Preferably, the branch pipe mold and the mounting groove of the lower mold are in clearance fit; through the above setting, the branch pipe mold is convenient to dismount and mount on the lower mold.

[0008] Compared with the prior art, the utility model has the advantages that: can be applicable to different branch pipe diameter three -way pipe fittings, when producing different branch pipe diameter three -way pipe fittings, can choose appropriate branch pipe mold according to the diameter of the branch pipe on three -way pipe fittings and install to the lower mold, need not replace the whole lower mold, convenient to use, reduce cost, practicality and reliability are high. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the first axonometric structure schematic diagram of the utility model;

[0010] Figure 2 It is the structure schematic diagram of lower mold and branch pipe mold;

[0011] Figure 3 It is the structure schematic diagram of lower mold;

[0012] Figure 4 It is the second axonometric structure schematic diagram of the utility model;

[0013] Figure 5 It is the structure schematic diagram of multiple branch pipe molds.

[0014] Mark in the drawing: 1, lower mold;2, upper mold;3, branch pipe mold;4, round groove;5, mounting plate. DETAILED DESCRIPTION

[0015] In order to facilitate understanding the utility model, below will refer to relevant drawings and carry out more comprehensive description to the utility model.The utility model can be realized in many different forms, and is not limited to the embodiment described in the text.Contrarily, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0016] EMBODIMENT

[0017] As Figures 1 to 5The utility model discloses a three -way die, including lower mould 1 and upper mould 2, upper mould 2 is located above lower mould 1, be provided with variable diameter branch pipe forming mechanism on lower mould 1, and variable diameter branch pipe forming mechanism has the function of changing diameter, when producing T type three -way through hot pressing method, first, according to the diameter of the branch pipe on three -way, change the diameter of variable diameter branch pipe forming mechanism on lower mould 1, adjust the diameter for forming branch pipe on lower mould 1 to the suitable diameter, then put the straight pipe after heating into lower mould 1, then make upper mould 2 drop through the lifting of outside, make upper mould 2 contact with lower mould 1, then make the lower part in the middle of straight pipe be pressed into the variable diameter branch pipe forming mechanism on lower mould 1 by selecting suitable mandrel and pressing down, and then extrude the branch pipe in the middle part of straight pipe, make straight pipe be extruded into three -way pipe fitting, then take out three -way pipe fitting in lower mould 1 and upper mould 2 after cooling forming can be, because the diameter on variable diameter branch pipe forming mechanism on lower mould 1 can be adjusted, so it can adjust the diameter according to the outer diameter of the branch pipe on three -way, can be applicable to three -way pipe fitting of different branch pipe diameter, when producing three -way pipe fitting of different branch pipe diameter, need not replace whole lower mould 1, convenient to use, low limitation, high economy and practicality,

[0018] As Figure 4 And Figure 5 Variable diameter branch pipe forming mechanism includes a plurality of branch pipe mould 3, be provided with mounting groove on lower mould 1, and mounting groove is used to install branch pipe mould 3, a plurality of branch pipe mould 3 all are provided with round groove 4, and the diameter of round groove 4 on a plurality of branch pipe mould 3 is all not same, wherein one branch pipe mould 3 is installed in the mounting groove of lower mould 1, and branch pipe mould 3 and lower mould 1 are detachably connected, when producing three -way pipe fitting, select suitable branch pipe mould 3 according to the outer diameter of the branch pipe on three -way pipe fitting, and the diameter of round groove 4 on selected branch pipe mould 3 is same with the outer diameter of the branch pipe on three -way pipe fitting, then place selected branch pipe mould 3 in the mounting groove of lower mould 1, then place the straight pipe after heating on lower mould 1, then make upper mould 2 drop, make straight pipe be extruded by lower mould 1 and upper mould 2, then select suitable mandrel and press down the lower part in the middle of straight pipe, make the lower part in the middle of straight pipe be pressed into the round groove 4 of branch pipe mould 3 installed on lower mould 1, make the lower part in the middle of straight pipe be pressed into round groove 4 and be formed as branch pipe, make straight pipe be hot-pressed into three -way pipe fitting, then take out three -way after hot-pressing on lower mould 1, upper mould 2 and branch pipe mould 3 can be, because the number of branch pipe mould 3 has a plurality, and the diameter of round groove 4 on a plurality of branch pipe mould 3 is all not same, so when producing three -way of different branch pipe diameter, can select suitable branch pipe mould 3 according to the diameter of the branch pipe on three -way pipe fitting and install to lower mould 1, without replacing whole lower mould 1, convenient to use, reduce cost, practicality and reliability are high.

[0019] As Figure 1A plurality of mounting plates 5 are arranged on the upper die 2; the upper die 2 is mounted on the hydraulic lifting mechanism outside through the mounting plates 5, and when the upper die 2 is lifted, the hydraulic lifting mechanism lifts the upper die 2 through the mounting plates 5, so that the mounting of the upper die 2 is facilitated.

[0020] The branch pipe die 3 is gap-fitted with the mounting groove of the lower die 1; through the above arrangement, the dismounting and mounting of the branch pipe die 3 on the lower die 1 are facilitated.

[0021] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A hot press forming die for a tee fitting of various sizes, comprising a lower die (1) and an upper die (2) which is located above the lower die (1); characterized in that, The lower mold (1) is provided with a variable-diameter branch pipe forming mechanism, which has a function of changing diameter.

2. The hot press forming die for a tee joint for various sizes of branch pipes according to claim 1, wherein The variable-diameter branch pipe forming mechanism comprises a plurality of branch pipe molds (3), the lower mold (1) is provided with a mounting groove for mounting the branch pipe molds (3), the plurality of branch pipe molds (3) are each provided with a circular groove (4), the diameters of the circular grooves (4) of the plurality of branch pipe molds (3) are different, one of the branch pipe molds (3) is mounted in the mounting groove of the lower mold (1), and the branch pipe mold (3) is detachably connected with the lower mold (1).

3. The hot press forming die for a tee joint for various sizes of branch pipes according to claim 1, wherein The upper mold (2) is provided with a plurality of mounting plates (5).

4. The hot press forming die for a tee joint for various sizes of branch pipes according to claim 2, wherein The branch pipe mold (3) is in clearance fit with the mounting groove of the lower mold (1).

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