Powder metallurgy pressing mold

Abstract

This utility model discloses a powder metallurgy pressing mold, including a lower mold base. The top of the lower mold base has multiple limiting connection grooves arranged in a rectangular array. Limiting connection rings are bonded inside the limiting connection grooves. A support rod is connected to the top of the lower mold base via the limiting connection rings. An upper mold base is fixedly connected to the top of the support rod. A first electric lifting rod is fixedly connected to the center of the bottom of the upper mold base, and an upper mold is fixedly connected to the bottom of the first electric lifting rod. In this design, the powder metallurgy pressing mold incorporates an automatic cleaning component. After the upper mold finishes working, the second electric lifting rod inside the automatic cleaning component is activated, causing it to move a cleaning ring downwards until it reaches the bottom of the upper mold. Because the inner wall of the cleaning ring is in contact with the surface of the upper mold, the powder adhering to the surface of the upper mold can be cleaned during the movement of the cleaning ring, facilitating powder collection and reducing losses.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy pressing mold technology, and more specifically, to powder metallurgy pressing mold. Background Technology

[0002] Powder metallurgy is a process technology that uses metal powder (or a mixture of metal powder and non-metal powder) as raw materials, and then shapes and sinters to manufacture metal materials, composite materials and various types of products. The advantage of powder metallurgy is that it can prepare metal composite materials with simple shapes and structures, such as heat dissipation substrates, at a lower cost. In the powder metallurgy process, pressing molds are required to assist in pressing and shaping.

[0003] For example, CN221808936U discloses a powder metallurgy pressing mold. The key technical points of this mold are: it includes a lower mold and an upper mold that cooperates with the lower mold. A forming cavity is provided on the upper surface of the lower mold. A placement groove is provided inside the lower mold and below the forming cavity. A support plate is slidably installed in the placement groove. The support plate is connected to a demolding mechanism. The demolding mechanism includes a support platform, several damping mechanisms, and several electric push rods. The support platform is slidably disposed inside the forming cavity. The support plate is slidably disposed inside the placement groove. The electric push rods are fixedly mounted on the support plate. The telescopic end of the electric push rod is fixedly connected to the lower surface of the support platform. The damping mechanism includes an outer tube, an inner rod, and a piston. The outer tube is fixedly connected inside the lower mold and is a cylinder with an open lower end. The top end of the inner rod slidably extends into the outer tube and is fixedly connected to the piston. The inner rod and the outer tube are sealed together. The piston is provided with... Several oil guide holes are provided. The piston is slidably connected inside the outer tube. The movable end of the inner rod extending out of the outer tube is fixedly connected to the support plate. A spring is provided between the movable end of the inner rod and the outer tube. It mainly drives the support plate to move upward through the demolding mechanism, thereby ejecting the metal parts formed in the molding cavity, which facilitates the demolding of the pressed metal parts. When the upper mold enters the molding cavity of the lower mold and works with the support plate to press and form the metal parts, the presence of the damping mechanism causes a certain resistance when the support plate descends. This, in conjunction with the upper mold, allows for pre-pressing of the metal parts, ensuring a better forming effect. During the pressing process and as the upper mold rises, the support plate slowly rises due to the damping mechanism. At this time, the metal parts and the upper mold can be separated in the molding cavity. During separation, the molding cavity restricts the top edge of the metal parts, resulting in a good forming effect.

[0004] The above-mentioned powder metallurgy pressing mold also has some shortcomings: after the pressing mold finishes working, a small amount of powder will adhere to the surface of the upper mold. If it is not cleaned, it will increase the cost of use and also affect the accuracy of the next work. Therefore, it is necessary to provide a powder metallurgy pressing mold. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a powder metallurgy pressing mold. By setting an automatic cleaning component, when the upper mold finishes working, the second electric lifting rod inside the automatic cleaning component is activated, causing it to move the cleaning ring downwards until the cleaning ring is lowered to the bottom of the upper mold. Because the inner wall of the cleaning ring is in contact with the surface of the upper mold, the powder adhering to the surface of the upper mold can be cleaned when the cleaning ring moves, so as to facilitate the collection of powder and reduce losses, thereby solving the problems existing in the prior art.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a powder metallurgy pressing mold, including a lower mold base, the top of the lower mold base having multiple limiting connection grooves arranged in a rectangular array, the inside of the limiting connection grooves being bonded with limiting connection rings, the top of the lower mold base being connected to a support rod through the limiting connection rings, the top of the support rod being fixedly connected to an upper mold base, the center of the bottom end of the upper mold base being fixedly connected to a first electric lifting rod, the bottom end of the first electric lifting rod being fixedly connected to an upper mold, and an automatic cleaning component being detachably installed in the middle of the bottom end of the upper mold base.

[0007] The depth of the limiting connection groove is less than the length of the support rod, and there are four support rods. The bottom end of each support rod is in contact with the bottom end inside the limiting connection groove.

[0008] The surface of the support rod is in contact with the inside of the limiting connecting ring, and the limiting connecting ring is made of rubber.

[0009] The automatic cleaning component includes a stabilizing connecting plate, and a second electric lifting rod is fixedly connected to the center of the bottom end of the stabilizing connecting plate.

[0010] The bottom end of the second electric lifting rod is fixedly connected to a cleaning ring, and the inner wall of the cleaning ring is in contact with the surface of the upper mold.

[0011] The upper surface of the stabilizing connecting plate is connected to one side of the bottom end of the upper mold base, and there are two stabilizing connecting plates.

[0012] The initial length of the second electric lifting rod is less than the initial length of the first electric lifting rod, and the extension length of the second electric lifting rod is greater than the length of the support rod.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: 1. In the above solution, the powder metallurgy pressing mold is equipped with a limiting connecting groove, a limiting connecting ring, and a support rod. When the lower mold base and the upper mold base need to be assembled, the bottom end of the support rod is aligned with the inside of the limiting connecting ring and then snapped together until the bottom end of the support rod contacts the bottom end inside the limiting connecting groove. Because the support rod is snapped into the limiting connecting groove, this connection method saves more time during assembly compared to other connection methods. 2. In the above scheme, the powder metallurgy pressing mold is equipped with an automatic cleaning component. When the upper mold finishes working, the second electric lifting rod inside the automatic cleaning component is activated, which drives the cleaning ring to move downward until the cleaning ring is lowered to the bottom of the upper mold. Because the inner wall of the cleaning ring is in contact with the surface of the upper mold, the powder adhering to the surface of the upper mold can be cleaned when the cleaning ring moves, so as to facilitate the collection of powder and reduce loss. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the assembly of the upper mold base and the lower mold base of this utility model; Figure 3 This is a schematic diagram showing the disassembled automatic cleaning component of this utility model.

[0015] [Figure Labels] 1. Lower mold base; 2. Limiting connecting groove; 3. Limiting connecting ring; 4. Support rod; 5. Upper mold base; 6. First electric lifting rod; 7. Upper mold; 8. Automatic cleaning assembly; 81. Stabilizing connecting plate; 82. Second electric lifting rod; 83. Cleaning ring. Detailed Implementation

[0016] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0017] Example 1: Please see Figure 1-3 A powder metallurgy pressing mold includes a lower mold base 1. The top of the lower mold base 1 has multiple limiting connection grooves 2 arranged in a rectangular array. Limiting connection rings 3 are bonded inside the limiting connection grooves 2. The top of the lower mold base 1 is connected to a support rod 4 through the limiting connection rings 3. The top of the support rod 4 is fixedly connected to an upper mold base 5. A first electric lifting rod 6 is fixedly connected to the center of the bottom end of the upper mold base 5. An upper mold 7 is fixedly connected to the bottom end of the first electric lifting rod 6. An automatic cleaning component 8 is detachably installed in the middle of the bottom end of the upper mold base 5. The depth of the limiting connecting groove 2 is less than the length of the support rod 4. There are four support rods 4. The bottom end of the support rod 4 contacts the bottom end inside the limiting connecting groove 2. The surface of the support rod 4 fits against the inside of the limiting connecting ring 3. The limiting connecting ring 3 is made of rubber. The automatic cleaning component 8 includes a stabilizing connecting plate 81. A second electric lifting rod 82 is fixedly connected to the center of the bottom end of the stabilizing connecting plate 81. A cleaning ring 83 is fixedly connected to the bottom end of the second electric lifting rod 82. The inner wall of the cleaning ring 83 fits against the surface of the upper mold 7. The upper surface of the stabilizing connecting plate 81 is connected to one side of the bottom end of the upper mold base 5. There are two stabilizing connecting plates 81. The initial length of the second electric lifting rod 82 is less than the initial length of the first electric lifting rod 6. The extension length of the second electric lifting rod 82 is greater than the length of the support rod 4.

[0018] Benefits: By securing the connecting plate 81, the stability of the second electric lifting rod 82 during installation is ensured, thereby reducing losses.

[0019] The working process of this utility model is as follows: In order to facilitate the assembly of the lower mold base 1 and the upper mold base 5, the powder metallurgy pressing mold is provided with a limiting connecting groove 2, a limiting connecting ring 3 and a support rod 4. When it is necessary to assemble the lower mold base 1 and the upper mold base 5, the bottom end of the support rod 4 is aligned with the inside of the limiting connecting ring 3 and then snapped together until the bottom end of the support rod 4 contacts the bottom end inside the limiting connecting groove 2. Because the support rod 4 is snapped into the inside of the limiting connecting groove 2, this connection method saves more time during assembly compared with other connection methods.

[0020] In the above scheme, the powder metallurgy pressing mold is equipped with an automatic cleaning component 8 to reduce the cost of use. When the upper mold 7 finishes working, the second electric lifting rod 82 inside the automatic cleaning component 8 is activated, which drives the cleaning ring 83 to move downward until the cleaning ring 83 is lowered to the bottom of the upper mold 7. Because the inner wall of the cleaning ring 83 is in contact with the surface of the upper mold 7, the powder adhering to the surface of the upper mold 7 can be cleaned when the cleaning ring 83 moves, so as to facilitate the collection of powder and reduce losses.

[0021] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A powder metallurgy pressing mold, comprising a lower mold base (1), characterized in that, The top of the lower mold base (1) is provided with multiple limiting connection grooves (2) in a rectangular array. A limiting connection ring (3) is bonded inside the limiting connection groove (2). The top of the lower mold base (1) is connected to a support rod (4) through the limiting connection ring (3). The top of the support rod (4) is fixedly connected to an upper mold base (5). A first electric lifting rod (6) is fixedly connected to the center of the bottom end of the upper mold base (5). An upper mold (7) is fixedly connected to the bottom end of the first electric lifting rod (6). An automatic cleaning component (8) is detachably installed in the middle of the bottom end of the upper mold base (5).

2. The powder metallurgy pressing mold according to claim 1, characterized in that, The depth of the limiting connection groove (2) is less than the length of the support rod (4), and there are four support rods (4). The bottom end of the support rod (4) is in contact with the bottom end inside the limiting connection groove (2).

3. The powder metallurgy pressing mold according to claim 1, characterized in that, The surface of the support rod (4) is in contact with the inside of the limiting connecting ring (3), and the limiting connecting ring (3) is made of rubber.

4. The powder metallurgy pressing mold according to claim 1, characterized in that, The automatic cleaning component (8) includes a stabilizing connecting plate (81), and a second electric lifting rod (82) is fixedly connected to the center of the bottom end of the stabilizing connecting plate (81).

5. The powder metallurgy pressing mold according to claim 4, characterized in that, The bottom end of the second electric lifting rod (82) is fixedly connected to a cleaning ring (83), and the inner wall of the cleaning ring (83) is in contact with the surface of the upper mold (7).

6. The powder metallurgy pressing mold according to claim 4, characterized in that, The upper surface of the stabilizing connecting plate (81) is connected to one side of the bottom end of the upper mold base (5), and there are two stabilizing connecting plates (81).

7. The powder metallurgy pressing mold according to claim 4, characterized in that, The initial length of the second electric lifting rod (82) is less than the initial length of the first electric lifting rod (6), and the extension length of the second electric lifting rod (82) is greater than the length of the support rod (4).

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