Demoulding structure for powder forming machine

Abstract

The utility model discloses a demoulding structure for a powder forming machine, which comprises a mould seat, guide holes are arranged on the periphery and the central end of the mould seat, a demoulding structure is arranged inside the lower part of the mould seat, and a mould cooling structure is arranged at one end of the mould seat. According to the metallurgical powder demolding device, the demolding structure is installed, when demolding is needed after metallurgical powder is formed, compressed air enters the vent groove through the air conveying pipe by means of an external air compressor, so that the bucket-shaped block is extruded by air to be ejected upwards, meanwhile, the first ejector rod and the second ejector rod eject a formed part, demolding is convenient, the arranged lifting plate can slide in the sliding groove, and demolding is convenient. The lifting plate can be protected through an arranged rubber pad, a mold cooling structure is installed, a cooling water tank can convey water into a circulating pipe through a water pump, a metallurgical powder forming part can be cooled, the forming part is helped to be cured more quickly in the mold by reducing the temperature of the mold, and therefore the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder molding machine technology, specifically a demolding structure for a powder molding machine. Background Technology

[0002] A powder forming machine is a mechanical device used to press powder materials. Its working principle is to apply high pressure to compact the powder material into a solid block with a certain strength and precision. This machine has a simple structure, reliable operation, and is suitable for pressing various powder materials, such as ceramics, metal powders, and plastic powders. After the powder forming machine has formed the powder, it needs to be demolded through a demolding structure.

[0003] The prior art, disclosed in patent document CN213261308U, presents the following technical solution: a demolding mechanism for a powder molding machine, comprising a demolding base, a mold base, and a mold body. The demolding base has a mold base at its top, a mold base panel on its top surface, six mold bodies on the mold base panel, a mold cavity in the center of each mold body, a movable column at the bottom of the mold cavity, an ejector plate at the bottom of the movable column, a base at the bottom of the ejector plate, a fixing plate at the bottom of the base, and a mold base base at the bottom of the fixing plate.

[0004] The above technical solution uses the movable column and ejector plate to vibrate slightly during the metallurgical powder pressing process, which facilitates the ejection of the molded part. However, the vibration may affect the molding of the metallurgical powder, and the vibration may cause uneven distribution of the release agent on the mold surface, thereby reducing the lubrication effect and demolding effect of the release agent. Utility Model Content

[0005] The purpose of this invention is to provide a demolding structure for a powder molding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a demolding structure for a powder molding machine, including a mold base, guide holes are provided around the mold base and at its center, a demolding structure is installed inside the lower part of the mold base, and a mold cooling structure is installed at one end of the mold base.

[0007] The demolding structure includes a lifting plate, with a first ejector rod fixedly connected to all four sides of the lifting plate, a second ejector rod fixedly connected to the center end of the lifting plate, a bucket-shaped block fixedly connected to the top side of the second ejector rod, and a ventilation groove provided on the upper side wall of the second ejector rod. Both the first ejector rod and the second ejector rod are slidably connected to guide holes.

[0008] In the above technical solution, compressed air is introduced into the ventilation groove through an external air compressor via an air supply pipe, causing the bucket-shaped block to be squeezed upward by the gas. At the same time, ejector rod one and ejector rod two lift the molded part, thereby facilitating demolding.

[0009] As a further preferred embodiment of this technical solution, a cooling cavity is provided at the edge of the mold base, a sealing frame is screwed to the top side of the mold base, and support seats are fixedly connected to the left and right ends of the bottom side of the mold base. Sliding grooves are provided on the opposite sides of the two support seats, and a base plate is fixedly connected to the bottom side of the two support seats.

[0010] As a further preferred embodiment of this technical solution, an air supply pipe is provided in the groove on one side of the mold base. One end of the air supply pipe passes through the mold base and is connected to an external air compressor, and the other end of the air supply pipe is connected to the ventilation groove.

[0011] As a further preferred embodiment of this technical solution, the outer walls on both sides of the lifting plate are slidably connected to the inner wall of the slide groove, and rubber pads are provided around the lifting plate.

[0012] In the above technical solution, the lifting plate can slide with the slide rail, which improves the stability of lifting, and the rubber pad can protect the lifting plate.

[0013] As a further preferred embodiment of this technical solution, the mold cooling structure includes a cooling water tank, which is located on one side of the base plate. One end of the cooling water tank is provided with a water inlet pipe, and a water pump is installed on the water inlet pipe. The other end of the cooling water tank is provided with a water outlet pipe.

[0014] In the above technical solution, the radiator inside the cooling water tank is composed of multiple layers of heat dissipation fins, which have a large surface area to contact the air and dissipate heat, thereby achieving a cooling effect.

[0015] As a further preferred embodiment of this technical solution, a circulation pipe is provided between the water inlet pipe and the water outlet pipe, and the circulation pipe is located inside the cooling chamber.

[0016] In the above technical solution, the cooling water tank can be pumped into the circulation pipe to cool the metallurgical powder molded parts. By reducing the temperature of the mold, the molded parts can be solidified faster in the mold, thereby improving production efficiency.

[0017] As a further preferred embodiment of this technical solution, the bucket-shaped block is disposed within the bucket-shaped groove.

[0018] This utility model provides a demolding structure for a powder molding machine, which has the following beneficial effects:

[0019] (1) By installing a demolding structure, when metallurgical powder needs to be demolded after molding, compressed air is introduced into the ventilation groove through the air supply pipe by an external air compressor, so that the bucket-shaped block is squeezed upward by the gas. At the same time, the first and second push rods lift the molded part, which facilitates demolding. The lifting plate can slide with the slide groove to improve the stability of lifting. The rubber pad can protect the lifting plate.

[0020] (2) By installing a mold cooling structure, the cooling water tank can be pumped into the circulation pipe to cool the metallurgical powder molded parts. By reducing the temperature of the mold, the molded parts can be solidified faster in the mold, thereby improving production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial cross-sectional view of the present invention;

[0023] Figure 3 This is an enlarged view of Figure A of this utility model;

[0024] Figure 4 This is a schematic diagram of the mold cooling structure of this utility model;

[0025] Figure 5 This is a cross-sectional view of the mold base of this utility model;

[0026] In the diagram: 1. Mold base; 11. Cooling chamber; 12. Sealing frame; 13. Support base; 14. Slide groove; 15. Base plate; 16. Guide hole; 17. Bucket-shaped groove; 2. Demolding structure; 21. Lifting plate; 211. Rubber pad; 22. Ejector rod one; 23. Ejector rod two; 24. Bucket-shaped block; 25. Ventilation groove; 26. Air supply pipe; 3. Mold cooling structure; 31. Cooling water tank; 32. Water inlet pipe; 33. Water outlet pipe; 34. Water pump; 35. Circulation pipe. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] This utility model provides a technical solution: such as Figure 1 and Figure 2As shown in this embodiment, a demolding structure for a powder molding machine includes a mold base 1. Guide holes 16 are provided around the mold base 1 and at its center. A demolding structure 2 is installed inside the lower part of the mold base 1. A mold cooling structure 3 is installed at one end of the mold base 1. A cooling cavity 11 is provided at the edge of the mold base 1. A sealing frame 12 is screwed to the top side of the mold base 1. Support seats 13 are fixedly connected to the left and right ends of the bottom side of the mold base 1. A sliding groove 14 is provided on the opposite side of the two support seats 13. A base plate 15 is fixedly connected to the bottom side of the two support seats 13. The outer walls of both sides of the lifting plate 21 are slidably connected to the inner walls of the sliding grooves 14. Rubber pads 211 are provided around the lifting plate 21. The lifting plate 21 can slide with the sliding grooves 14 to improve the stability of lifting. The rubber pads 211 can protect the lifting plate 21.

[0029] like Figure 2 , Figure 3 and Figure 5 As shown, the demolding structure 2 includes a lifting plate 21. A first ejector rod 22 is fixedly connected to all four sides of the lifting plate 21. A second ejector rod 23 is fixedly connected to the center end of the lifting plate 21. A bucket-shaped block 24 is fixedly connected to the top side of the second ejector rod 23. The bucket-shaped block 24 is located within the bucket-shaped groove 17. A ventilation groove 25 is provided on the upper side wall of the second ejector rod 23. Both the first ejector rod 22 and the second ejector rod 23 are slidably connected to the guide hole 16. An air supply pipe 26 is provided in a groove on one side of the mold base 1. One end of the air supply pipe 26 passes through the mold base 1 and is connected to an external air compressor. The other end of the air supply pipe 26 is connected to the ventilation groove 25. By installing the demolding structure 2, when the metallurgical powder needs to be demolded after molding, compressed air is supplied by an external air compressor through the air supply pipe 26 into the ventilation groove 25, causing the bucket-shaped block 24 to be squeezed upwards by the gas. At the same time, the first ejector rod 22 and the second ejector rod 23 lift the molded part, thus facilitating demolding.

[0030] like Figure 4 As shown, the mold cooling structure 3 includes a cooling water tank 31. The cooling water tank 31 includes a radiator, water pipes, etc. The radiator is usually composed of multiple layers of heat dissipation fins, which is existing technology. It has a large surface area to contact the air and dissipate heat to achieve a cooling effect. The cooling water tank 31 is located on one side of the base plate 15. One end of the cooling water tank 31 is provided with an inlet pipe 32, and a water pump 34 is provided on the inlet pipe 32. The other end of the cooling water tank 31 is provided with an outlet pipe 33. A circulation pipe 35 is provided between the inlet pipe 32 and the outlet pipe 33. The circulation pipe 35 is located inside the cooling chamber 11. The cooling water tank 31 installed in the mold cooling structure 3 can be pumped into the circulation pipe 35 by the water pump 34, which can cool down the metallurgical powder molded parts. By reducing the temperature of the mold, the molded parts can be solidified faster in the mold, thereby improving production efficiency.

[0031] This utility model provides a demolding structure for a powder molding machine. The specific working principle is as follows: Metallurgical powder is placed into the mold base 1 and formed by a hydraulic system. After forming for a while, the water pump 34 is started to send the cooling water in the water pump 31 into the circulation pipe 35 through the water inlet pipe 32, and then back into the cooling water tank 31 through the water outlet pipe 33, so that the heat is carried out through heat exchange. When demolding is required after forming, the compressed air is first sent into the ventilation groove 25 through the air supply pipe 26 by the external air compressor, so that the bucket-shaped block 24 is squeezed upward by the gas. At the same time, the ejector rod 1 22 and ejector rod 23 lift the molded part, thus facilitating demolding.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A demolding structure for a powder molding machine, comprising a mold base (1), characterized by: The mold base (1) is provided with guide holes (16) around and at the center end, the mold base (1) is internally provided with a demolding structure (2) below, and the mold base (1) is provided with a mold cooling structure (3) at one end; The demolding structure (2) comprises a lifting plate (21), the lifting plate (21) is fixedly connected with a top rod one (22) around, the lifting plate (21) is fixedly connected with a top rod two (23) at the center end, the top rod two (23) is fixedly connected with a bucket-shaped block (24) on the top side, the top rod two (23) is provided with a ventilation groove (25) on the upper side wall, and the top rod one (22) and the top rod two (23) are slidably connected with the guide holes (16); The mold base (1) is provided with a cooling cavity (11) at the edge, the mold base (1) is screw-connected with a sealing frame (12) on the top side, the left and right ends of the bottom side of the mold base (1) are fixedly connected with support seats (13), and the opposite sides of the two support seats (13) are provided with sliding grooves (14); and the bottom sides of the two support seats (13) are fixedly connected with a bottom plate (15); The mold cooling structure (3) comprises a cooling water tank (31), the cooling water tank (31) is arranged on one side of the bottom plate (15), one end of the cooling water tank (31) is provided with an inlet pipe (32), the inlet pipe (32) is provided with a water pump (34), and the other end of the cooling water tank (31) is provided with an outlet pipe (33); The circulation pipe (35) is arranged between the inlet pipe (32) and the outlet pipe (33) and in the cooling cavity (11).

2. The demolding structure for a powder molding machine according to claim 1, characterized by: The air conveying pipe (26) is arranged in the groove on one side of the mold base (1), one end of the air conveying pipe (26) penetrates through the mold base (1) and is connected with an air compressor outside, and the other end of the air conveying pipe (26) is communicated with the ventilation groove (25).

3. The demolding structure for a powder molding machine according to claim 1, characterized by: The outer walls on both sides of the lifting plate (21) are slidably connected with the inner walls of the sliding grooves (14), and the lifting plate (21) is provided with rubber pads (211) around.

4. The demolding structure for a powder molding machine according to claim 1, characterized by: The bucket-shaped block (24) is arranged in the bucket-shaped groove (17).

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