Bevel extrusion die

Abstract

The utility model discloses a bevel extrusion die, relates to the technical field of three-way copper pipe processing, and aims to solve the problems of higher processing difficulty, lower production rate and poorer safety performance of the conventional three-way branch pipe. Comprising a base and a top plate, a lower die plate is arranged on the base, and a lower die core used for extruding the three-way branch pipe is connected to the lower die plate; the top plate is connected with an upper die plate through a connecting block, and an upper die core matched with the lower die core is installed on the upper die plate. The upper die core and the lower die core are used in cooperation, a copper pipe to be machined can be pressed and limited, and follow-up machining operation is facilitated; the upper die plate is further provided with a discharging air cylinder for discharging the three-way branch pipe. The base is further provided with a forming assembly used for forming the three-way branch pipe, the forming assembly comprises an extrusion block, a liquid inlet channel is formed in the extrusion block, one end of the liquid inlet channel is communicated with external liquid supply equipment, and the other end of the liquid inlet channel corresponds to the three-way branch pipe in position.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way copper tube processing, in particular to an oblique-mouth extrusion die. Background Art

[0002] The three-way branch pipe plays the role of diverting refrigerant in the air-conditioning system, which is similar to the three-way joint in the water pipe and is a commonly used component in the air-conditioning system.

[0003] During the processing of the existing three-way branch pipe, two copper pipes need to be welded together. This processing method has high technical requirements for the staff, poor controllability of the quality of the finished product, low production efficiency, poor safety performance, and cannot meet the requirements of mass production.

[0004] Therefore, the present application provides a beveled extrusion die to meet the demand. Utility Model Content

[0005] The purpose of the present application is to provide an oblique-mouth extrusion die, aiming to solve the problems of existing three-way branch pipes in that they are difficult to process, have low productivity and poor safety performance.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an oblique-mouth extrusion die, comprising a base and a top plate, the base is provided with a lower die plate, the lower die plate is connected with a lower die core for extruding a three-way branch pipe; the top plate is connected with an upper die plate through a connecting block, the upper die plate is provided with an upper die core adapted to the lower die core; by using the upper die core and the lower die core in combination, the copper tube to be processed can be pressed and limited, which is convenient for subsequent processing operations;

[0007] The upper template is also provided with a discharge cylinder for discharging the three-way branch pipe; the base is also provided with a forming assembly for forming the three-way branch pipe, the forming assembly includes an extrusion block, and the extrusion block is provided with a liquid inlet channel, one end of the liquid inlet channel is connected to an external liquid supply device, and the other end corresponds to the position of the three-way branch pipe.

[0008] Preferably, the lower template is slidably connected to the base, a slide groove is provided on the base, a slider matched with the slide groove is provided on the facing surfaces of the lower template and the base, and the slider is slidably connected to the slide groove.

[0009] Preferably, a core hole matched with the three-way branch pipe is opened on the upper mold core, and a sliding hole corresponding to the position of the core hole is opened on the upper mold plate. A ejecting rod is slidably connected in the sliding hole, and one end of the ejecting rod is connected to the unloading cylinder. A unloading cylinder and an ejecting rod for unloading the three-way branch pipe are arranged on the upper mold plate. After the processing of the three-way branch pipe is completed, the automatic unloading operation can be realized through the cooperation of the unloading cylinder and the ejecting rod.

[0010] Preferably, the molding assembly also includes a mounting seat and an extrusion cylinder. There are two groups of mounting seats, which are arranged on the left and right sides of the base. The extrusion cylinder is provided on the mounting seat, and the telescopic end of the extrusion cylinder is connected to one end of the extrusion block. The other end of the extrusion block is provided with an extrusion head adapted to the three-way branch pipe. A core hole is opened on the upper mold core, and the molding assembly is cooperated. Water is injected into both ends of the copper tube through the molding assembly, so that the copper tube extends toward the core hole under the action of water pressure to obtain a three-way branch pipe.

[0011] Preferably, the liquid inlet channel runs through the extrusion head, and the extrusion head includes a cylindrical portion and a conical portion. The outer diameter of the cylindrical portion is larger than the outer diameter of the three-way branch pipe, and the outer diameter of the first end of the conical portion is smaller than the outer diameter of the terminal end of the conical portion. The terminal end of the conical portion is connected to the cylindrical portion, and the outer diameter of the terminal end of the conical portion is equal to the inner diameter of the three-way branch pipe.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] In the utility model, the upper die core and the lower die core are used in coordination, so that the copper tube to be processed can be pressed and limited, which is convenient for subsequent processing operations.

[0014] In the utility model, a core hole is opened on the upper mold core, and a forming component is matched, and water is injected into both ends of the copper tube through the forming component, so that the copper tube extends to the core hole under the action of water pressure to obtain a three-way branch pipe.

[0015] In the utility model, a discharge cylinder and a push rod for discharging the three-way branch pipe are arranged on the upper template, and after the three-way branch pipe is processed, the automatic discharge operation can be realized through the cooperation of the discharge cylinder and the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a partial exploded view of the utility model;

[0019] Figure 3 It is a partial cross-sectional view of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the extrusion block and the extrusion head of the utility model;

[0021] In the figure: 1. base; 2. mounting seat; 3. extrusion cylinder; 4. extrusion block; 5. top plate; 6. connecting block; 7. upper template; 8. upper mold core; 9. lower mold core; 10. lower template; 11. slide groove; 12. slider; 13. unloading cylinder; 14. ejector rod; 15. liquid inlet channel; 16. extrusion head; 17. three-way branch pipe; 18. slide hole; 19. core hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0023] refer to Figure 1-4 The oblique-mouth extrusion die shown comprises a base 1 and a top plate 5, wherein a lower mold plate 10 is provided on the base 1, and a lower mold core 9 for extruding a three-way branch pipe 17 is connected to the lower mold plate 10;

[0024] The top plate 5 is connected to an upper mold plate 7 through a connecting block 6, and an upper mold core 8 adapted to the lower mold core 9 is installed on the upper mold plate 7; the upper mold core 8 and the lower mold core 9 are used in combination to press and limit the copper tube to be processed, so as to adapt to subsequent processing operations;

[0025] The base 1 is also provided with a forming assembly for forming the three-way branch pipe 17. The forming assembly includes an extrusion block 4. The extrusion block 4 is provided with a liquid inlet channel 15. One end of the liquid inlet channel 15 is connected to an external liquid supply device, and the other end corresponds to the position of the three-way branch pipe 17. The liquid provided by the liquid supply device is water. Under the action of a water pump, the water is input into the copper pipe to be processed through the extrusion block 4. The forming assembly also includes a mounting seat 2 and an extrusion cylinder 3. The mounting seat 2 has two groups and is arranged on the left and right sides of the base 1. The mounting seat 2 is provided with the extrusion cylinder 3. The telescopic end of the extrusion cylinder 3 is connected to one end of the extrusion block 4. The other end of the extrusion block 4 is provided with an extrusion head 16 adapted to the three-way branch pipe 17.

[0026] like Figure 4As shown, the liquid inlet channel 15 passes through the extrusion head 16, and the extrusion head 16 includes a cylindrical portion and a truncated cone portion. The outer diameter of the cylindrical portion is larger than the outer diameter of the three-way branch pipe 17, and the outer diameter of the head end of the truncated cone portion is smaller than the outer diameter of the end end of the truncated cone portion. The end of the truncated cone portion is connected to the cylindrical portion, and the outer diameter of the end end of the truncated cone portion is equal to the inner diameter of the three-way branch pipe 17. When water is introduced into the copper pipe, in order to ensure the sealing of the connection between the extrusion head 16 and the copper pipe to be processed, a sealing gasket is also provided between the facing surfaces of the extrusion head 16 and the copper pipe to be processed.

[0027] like Figure 3 As shown, the upper mold plate 7 is also provided with a discharge cylinder 13 for discharging the three-way branch pipe 17; the upper mold core 8 is provided with a core hole 19 adapted to the three-way branch pipe 17, and the upper mold plate 7 is provided with a slide hole 18 corresponding to the position of the core hole 19, and a push rod 14 is slidably connected in the slide hole 18, and one end of the push rod 14 is connected to the discharge cylinder 13. Through the cooperation of the push rod 14 and the discharge cylinder 13, the automatic discharge operation of the three-way branch pipe 17 can be completed.

[0028] like Figure 2 As shown, the lower template 10 is slidably connected to the base 1, and bolts for fixing and limiting are provided between the lower template 10 and the base 1. A slide groove 11 is opened on the base 1, and a slider 12 matched with the slide groove 11 is provided on the facing surfaces of the lower template 10 and the base 1. The slider 12 is slidably connected to the slide groove 11, and the base 1 and the lower template 10 are slidably connected, which can adapt to the processing of three-way branch pipes 17 of different shapes and sizes.

[0029] Working principle of the utility model: when in use, the copper tube to be processed is placed on the lower mold core 9, the top plate 5 is pushed to move downward, the copper tube connecting block 6 drives the upper mold plate 7 and the upper mold core 8 to move downward, the copper tube is pressed and limited, the extrusion cylinder 3 is controlled to work, and the extrusion block 4 is driven to move toward the copper tube, and the extrusion block 4 drives the extrusion head 16 to connect with the two ends of the copper tube, and the external liquid supply equipment is controlled to work, and water is passed into the copper tube. With the injection of water, the water pressure in the copper tube increases, but the two ends of the copper tube are blocked by the extrusion head 16, and the copper tube is under the action of water pressure. The copper tube extends into the core hole 19 of the upper mold core 8 to form a three-way branch pipe 17, and the external liquid supply equipment is stopped. The extrusion cylinder 3 is controlled to retract, driving the extrusion block 4 to reset, and the top plate 5 is moved upward to open the mold for the three-way branch pipe 17. Since the copper tube extends to the core hole 19, the three-way branch pipe 17 will move upward with the upper mold core 8, and the unloading cylinder 13 is controlled to work and extend, driving the ejecting rod 14 to move in the sliding hole 18, thereby realizing the unloading operation of the three-way branch pipe 17 and completing the extrusion molding of the three-way branch pipe 17.

[0030] The electromechanical connection involved in the present utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0031] Components not described in detail herein are prior art.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oblique extrusion die, characterized in that: It comprises a base (1) and a top plate (5), The base (1) is provided with a lower mold plate (10), and the lower mold plate (10) is connected to a lower mold core (9) for extruding a three-way branch pipe (17); The top plate (5) is connected to an upper mold plate (7) via a connecting block (6), and an upper mold core (8) adapted to the lower mold core (9) is installed on the upper mold plate (7); The upper mold plate (7) is also provided with a discharge cylinder (13) for discharging the three-way branch pipe (17); The base (1) is also provided with a molding assembly for molding the three-way branch pipe (17), the molding assembly comprising an extrusion block (4), the extrusion block (4) being provided with a liquid inlet channel (15), one end of the liquid inlet channel (15) being connected to an external liquid supply device, and the other end of the liquid inlet channel (15) corresponding to the position of the three-way branch pipe (17).

2. The oblique-mouth extrusion die according to claim 1, characterized in that: The lower template (10) is slidably connected to the base (1); a slide groove (11) is provided on the base (1); a sliding block (12) adapted to the slide groove (11) is provided on the facing surfaces of the lower template (10) and the base (1); and the sliding block (12) is slidably connected to the slide groove (11).

3. The oblique-mouth extrusion die according to claim 1, characterized in that: The upper mold core (8) is provided with a core hole (19) adapted to the three-way branch pipe (17), and the upper mold plate (7) is provided with a sliding hole (18) corresponding to the position of the core hole (19). A push rod (14) is slidably connected in the sliding hole (18), and one end of the push rod (14) is connected to the unloading cylinder (13).

4. The oblique-mouth extrusion die according to claim 1, characterized in that: The molding assembly further comprises a mounting seat (2) and an extrusion cylinder (3). The mounting seat (2) has two groups and is arranged on the left and right sides of the base (1). The mounting seat (2) is provided with the extrusion cylinder (3). The telescopic end of the extrusion cylinder (3) is connected to one end of the extrusion block (4). The other end of the extrusion block (4) is provided with an extrusion head (16) adapted to the three-way branch pipe (17).

5. The oblique-mouth extrusion die according to claim 4, characterized in that: The liquid inlet channel (15) passes through the extrusion head (16), and the extrusion head (16) comprises a cylindrical portion and a truncated cone portion. The outer diameter of the cylindrical portion is greater than the outer diameter of the three-way branch pipe (17), and the outer diameter of the first end of the truncated cone portion is smaller than the outer diameter of the terminal end of the truncated cone portion. The terminal end of the truncated cone portion is connected to the cylindrical portion, and the outer diameter of the terminal end of the truncated cone portion is equal to the inner diameter of the three-way branch pipe (17).

Images