Elbow pipe forming die

Abstract

The utility model discloses an elbow pipe forming die, which relates to the field of elbow pipe manufacturing, solves the problem that the existing elbow pipe is easy to deform and damage due to poor external cooling effect, and adopts the following scheme: the elbow pipe forming die comprises a sleeve rod, and a left die holder and a right die holder which are sleeved on the sleeve rod and are hydraulically driven, mold grooves opposite in position are formed in the inner sides of the left mold base and the right mold base, and an inner mold pipe arranged between the two mold grooves in a sleeving mode is arranged between the left mold base and the right mold base; the inner mold pipe is composed of a built-in pipe and an end pipe, the built-in pipe is a bent pipe with the same radian as the mold groove, the built-in pipe is a copper pipe, the end pipe is fixedly connected to the top end of the built-in pipe, and the top end of the end pipe is fixedly connected to the output end of the cooling water pump; according to the elbow pipe forming mold, through the arrangement of the left mold base, the right mold base and the inner mold pipe between the left mold base and the right mold base, an elbow pipe on the inner side of the mold groove can be subjected to injection molding manufacturing through the mold groove, and meanwhile the elbow pipe can be efficiently cooled from the inner side by guiding cooling water into the inner mold pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow pipe manufacturing, and specifically relates to an elbow pipe forming die. Background Art

[0002] In a pipeline system, an elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are three most commonly used types: 45°, 90°, and 180°. In addition, according to engineering needs, it also includes other non-standard angle elbows such as 60°. The materials of elbows include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals, and plastics, etc.

[0003] In the application with the patent application number CN202320967743.0, a pipeline elbow forming die is disclosed, which includes a die body. A fixing plate is arranged on the surface of the die body. Both the front and rear sides of the bottom of the fixing plate are fixedly connected with connecting plates, and the other ends of the connecting plates are fixed with a collection box. A chute is opened on the left side of the inner cavity of the collection box, and a sliding plate is slidably connected inside the chute. One end of the sliding plate is fixedly connected with a vertical plate, and several straight rods are fixed on the other side of the vertical plate. A driving structure for driving the sliding plate to move is arranged on the left side of the collection box, several fans are arranged on the right side of the collection box, and several through grooves are opened at the bottom of the collection box; the utility model can turn the elbows stacked inside the collection box to facilitate better cooling of the elbows, and at the same time, it can also make the waste materials fall into the inside of the collection box, thus facilitating the automatic collection of the fallen waste materials.

[0004] The above application document cools the discharged elbow pipe through the cooling component at the bottom side. However, firstly, the die body is easily deformed by external forces in a short time after demolding and is not easily deformed after cooling. The direct stirring method is likely to cause the die body to be damaged due to force deformation. Secondly, the external cooling method is not helpful for the forming rate of the elbow pipe.

[0005] Therefore, we propose an elbow pipe forming die. Summary of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an elbow pipe forming die, which solves the problem that the existing external cooling effect of the elbow pipe is not good and is easily deformed and damaged.

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: an elbow pipe forming die, including a sleeve rod, and a left die seat and a right die seat driven by hydraulic pressure are slidably sleeved on the sleeve rod. Opposite die grooves are arranged on the inner sides of the left die seat and the right die seat, and an inner die pipe sleeved between the two groups of die grooves is arranged between the left die seat and the right die seat;

[0008] The inner mold tube is composed of an inner tube and an end tube. The inner tube is a bent tube with the same radian as the mold groove. The inner tube is a copper tube. The top end of the inner tube is fixedly connected with an end tube, and the top end of the end tube is fixedly connected to the output end of the cooling water pump.

[0009] Preferably, bent columns are arranged on the inner side of the inner tube, and the top ends of the inner tube and the bent columns are connected through a connecting part;

[0010] Among them, the arrangement of the bent columns enables the cooling water inside them to fully contact the inner wall of the inner tube, thereby efficiently cooling the bent tube on its outer side.

[0011] Preferably, liquid grooves are formed on the inner wall of the inner tube and are recessed outward;

[0012] Among them, the arrangement of the liquid grooves can increase the contact area with the cooling water, thereby increasing the heat conduction effect and the subsequent cooling effect.

[0013] Preferably, the bent columns are made of deformable plastic;

[0014] Among them, the deformable setting of the bent columns facilitates deformation during demolding in cooperation with the copper tube of the inner tube and can be directly drawn out from the bent tube to complete smooth demolding.

[0015] Preferably, rectangular grooves are formed in the left mold base and the right mold base outside the mold groove, and a fan base is fixedly installed in the rectangular groove of the left mold base;

[0016] Among them, the arrangement of the fan base can make the bearings of the left mold base and the right mold base always have flowing gas to take away the heat on their outer walls and ensure the cooling effect.

[0017] Preferably, hoppers are fixedly installed on the left mold base and the right mold base at the top sides of the two groups of mold grooves;

[0018] Among them, the arrangement of the fan base facilitates injecting the liquid material into the two groups of mold grooves for subsequent bent tube forming.

[0019] The present utility model provides an elbow tube forming mold. It has the following beneficial effects:

[0020] For this elbow tube forming mold, through the settings of the left mold base, the right mold base and the inner mold tube therebetween, it can use the mold groove to inject mold the bent tube inside it. At the same time, it can import cooling water into the inner mold tube to efficiently cool the bent tube from the inside. With the setting of the fan base, the left mold base and the right mold base can be kept in a low-temperature state as a whole, so as to ensure that the bent tube is in a cooled state before demolding and has a certain rigidity, ensuring the forming effect, and solving the problem that the external cooling effect of the existing bent tube is not good and is prone to deformation and damage. Description of the Drawings

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is a schematic structural view of the present utility model during splitting;

[0023] Figure 3 is a schematic structural view of the left mold base of the present utility model;

[0024] Figure 4 is a schematic structural view of the inner mold tube of the present utility model.

[0025] In the figure: 1, sleeve rod; 2, left mold base; 21, mold groove; 22, hopper; 23, fan base; 3, right mold base; 4, inner mold tube; 41, built-in tube; 42, end tube; 43, bent column; 44, connecting part. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1

[0028] Please refer to Figures 1-4 , an embodiment of the present utility model provides a technical solution: an elbow pipe forming mold, including a sleeve rod 1, and a hydraulically driven left mold base 2 and a right mold base 3 are slidably sleeved on the sleeve rod 1. Opposite mold grooves 21 are provided inside the left mold base 2 and the right mold base 3, and an inner mold tube 4 sleeved between the two groups of mold grooves 21 is arranged between the left mold base 2 and the right mold base 3; the inner mold tube 4 is composed of a built-in tube 41 and an end tube 42. The built-in tube 41 is a bent tube with the same radian as the mold groove 21. The built-in tube 41 is a copper tube. The top end of the built-in tube 41 is fixedly connected with an end tube 42, and the top end of the end tube 42 is fixedly connected to the output end of a cooling water pump.

[0029] Among them, for this elbow pipe forming mold, through the settings of the left mold base 2, the right mold base 3 and the inner mold tube 4 therebetween, the injection molding of the bent tube inside it can be carried out by using the mold groove 21, and at the same time, the bent tube can be efficiently cooled from the inside by introducing cooling water into the inner mold tube 4. With the setting of the fan base 23, the whole left mold base 2 and the right mold base 3 can always be in a low temperature state, so as to ensure that the bent tube is in a cooled state before demolding, has a certain rigidity, and ensures the forming effect, solving the problem that the external cooling effect of the existing bent tube is not good and easy to cause its deformation and damage.

[0030] Embodiment 2

[0031] A bent column 43 is arranged inside the built-in pipe 41, and the top end of the built-in pipe 41 and the top end of the bent column 43 are connected through a connecting part 44. Among them, the arrangement of the bent column 43 enables the cooling water inside it to be in complete contact with the inner wall of the built-in pipe 41, so as to efficiently cool the bent pipe on its outer side.

[0032] Liquid grooves are formed on the inner wall of the built-in pipe 41 and recess outward. Among them, the arrangement of the liquid grooves can increase the contact area between it and the cooling water, thereby increasing the heat conduction effect and the subsequent cooling effect.

[0033] The bent column 43 is made of deformable plastic. Among them, the deformable setting of the bent column 43 facilitates deformation during demolding in cooperation with the copper pipe of the built-in pipe 41, and it can be directly drawn out from the bent pipe to complete smooth demolding.

[0034] Rectangular grooves are formed in the left mold base 2 and the right mold base 3 outside the mold groove 21, and a fan base 23 is fixedly installed in the rectangular groove of the left mold base 2. Among them, the arrangement of the fan base 23 can make the bearings of the left mold base 2 and the right mold base 3 always have flowing gas to take away the heat on their outer walls and ensure the cooling effect.

[0035] Hoppers 22 are fixedly installed on the left mold base 2 and the right mold base 3 at the top sides of the two groups of mold grooves 21. Among them, the arrangement of the hoppers 22 facilitates injecting the liquid material into the two groups of mold grooves 21 for subsequent bent pipe forming.

[0036] In addition, it should be supplemented that the top side of the end pipe 42 is fixedly installed on the lifting plate to keep the inner mold pipe 4 in a stable state.

[0037] The working principle and usage process of the present utility model: When the device is required to perform injection molding on the bent pipe, the inner mold pipe 4 is placed in the two groups of mold grooves 21 between the left mold base 2 and the right mold base 3, and then the left mold base 2 and the right mold base 3 are driven to close, and the liquid material is injected into the two groups of mold grooves 21 from the top side. At the same time, cooling water is injected into the inner mold pipe

[0038] 4 to cool it from the inside, and the arrangement of the fan base 23 can cool the left mold

[0039] base 2 and the right mold base 3 to ensure the forming effect.

Claims

1. An elbow pipe forming die, comprising a sleeve rod (1), wherein a hydraulically driven left die base (2) and a right die base (3) are slidably mounted on the sleeve rod (1); the characteristics are: The inner sides of the left mold base (2) and the right mold base (3) are provided with mold grooves (21) located opposite to each other, and an inner mold tube (4) is provided between the left mold base (2) and the right mold base (3) and is sleeved between the two groups of mold grooves (21); The inner mold tube (4) is composed of an inner tube (41) and an end tube (42); the inner tube (41) is a curved tube having the same curvature as the mold groove (21); the inner tube (41) is a copper tube; the top end of the inner tube (41) is fixedly connected to the end tube (42); and the top end of the end tube (42) is fixedly connected to the output end of a cooling water pump.

2. The elbow pipe forming die according to claim 1, characterized in that: A bent column (43) is provided inside the built-in tube (41), and the top end of the built-in tube (41) and the top end of the bent column (43) are connected via a connecting portion (44).

3. The elbow pipe forming die according to claim 2, characterized in that: The inner wall of the built-in tube (41) is provided with a liquid groove which is recessed outwards.

4. The elbow pipe forming die according to claim 2, characterized in that: The bent column (43) is made of deformable plastic.

5. The elbow pipe forming die according to claim 1, characterized in that: The left mold base (2) and the right mold base (3) are provided with rectangular grooves located outside the mold groove (21), and a fan base (23) is fixedly installed in the rectangular groove in the left mold base (2).

6. The elbow pipe forming die according to claim 5, characterized in that: A hopper (22) located at the top side of the two groups of die grooves (21) is fixedly mounted on the left die base (2) and the right die base (3).

Images