Cylindrical mold structure for hot pressing sintering

Abstract

The utility model discloses a cylindrical mould structure for hot pressing sintering, which belongs to the technical field of hot pressing sintering, and adopts the technical scheme that the cylindrical mould structure comprises a filling part and a butt joint part, a limiting ring is arranged on the outer surface of the filling part, a channel is arranged in the butt joint part, the end part of the channel is communicated with a slide way, and the slide way is provided with a through hole. A check block is arranged on the side face, close to the channel, in the butt joint part. The structure does not need to replace the die, shortens the operation time and improves the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing sintering, in particular to a cylindrical mold structure for hot pressing sintering. Background Art

[0002] In the hot pressing sintering process, a sintering mold is required. After placing the product raw materials into the mold, sintering is carried out. After multiple sinterings, the final product is formed. In the existing mold during hot pressing sintering processing, if products of different sizes need to be sintered, different molds need to be replaced. The operation is complex and the replacement time is long, which is time-consuming and laborious, resulting in a slow sintering rate and affecting the production volume of products. Summary of the Utility Model

[0003] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a cylindrical mold structure for hot pressing sintering, which does not require mold replacement, reduces the operation time, and improves the production efficiency.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: A cylindrical mold structure for hot pressing sintering includes a loading part and a docking part. A limiting ring is arranged on the outer surface of the loading part. A channel is arranged inside the docking part. A slideway is communicated with the end of the channel. A stop block is arranged on the side of the docking part close to the channel. The sealing cover plate is used to cover the loading part.

[0005] In some embodiments, the docking part is threadedly connected to the loading part.

[0006] In some embodiments, a plurality of heat dissipation holes penetrate through the docking part.

[0007] In some embodiments, the loading part is made of graphite.

[0008] In some embodiments, three slideways and stop blocks are alternately arranged.

[0009] In some embodiments, the maximum outer diameter of the loading part is the same as the maximum inner diameter of the docking part.

[0010] In summary, the utility model has the following beneficial effects:

[0011] The utility model fills the product raw materials through the cylindrical loading part for hot pressing sintering processing. The filling is fast and convenient. And when products of different heights need to be sintered, by using the cooperation of the limiting ring of the loading part and the slideway and stop block of the docking part, multiple molds can be connected and fixed together, so as to sinter products of different heights without replacing the mold, reducing the operation time and improving the production efficiency. Brief Description of the Drawings

[0012] Figure 1Schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 Cross-sectional view of the present utility model.

[0014] In the figure: 1, loading part; 11, limiting ring; 2, docking part; 21, channel; 22, slideway; 23, stop block; 24, heat dissipation hole. Specific embodiments

[0015] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present utility model.

[0018] See Figure 1-2, A cylindrical mold structure for hot press sintering, including a loading part 1 and a docking part 2. A limiting ring 11 is provided on the outer surface of the loading part 1, a channel 21 is provided inside the docking part 2, a slideway 22 is communicated with the end of the channel 21, and a stop block 23 is provided on the side of the docking part 2 close to the channel 21. A sealing cover plate is used to cover the loading part 1. When in use, when the cost of the product raw material is lower than the cost of graphite, the operator pastes graphite paper inside the loading part 1 to separate the product from the graphite for easy demolding, then covers the sealing cover plate for sintering, and after demolding, grinding and processing to reach the size can complete; if the cost of the product raw material is higher than graphite, there is no need to paste carbon paper, and the product can be obtained by turning the loading part 1 with a lathe after sintering is completed, thus saving costs. When the height of the product to be manufactured is relatively high, the operator only needs to connect the loading part 1 of one mold with the docking part 2 of another mold, push the limiting ring 11 of the loading part 1 along the channel 21 of the docking part 2 onto the slideway 22 inside the docking part 2, and finally rotate one of the molds so that the limiting ring 11 of the loading part 1 of one mold rotates to be blocked by the stop block 23 of the docking part 2 of another mold, thereby fixing the two molds, and sintering can be carried out without replacing the mold to delay production, and the internal connection of the loading parts 1 of the two molds is very smooth, ensuring the smoothness of the outer surface of the product.

[0019] In some embodiments, the docking part 2 and the loading part 1 are connected by threads. When the operator needs to hot press sinter a mold with a relatively high height, the docking part 2 and the loading part 1 can be quickly connected. At the same time, when disassembling, only need to unscrew the docking part 2 from the loading part 1, that is, it can be used immediately, and the disassembly and assembly are fast and very convenient, improving work efficiency.

[0020] In some embodiments, a plurality of heat dissipation holes 24 penetrate through the docking part 2. Since the internal temperature of the cylindrical mold is too high after hot press sintering processing and the surface of the product needs to be complete, the heat dissipation holes 24 are needed to dissipate the temperature of the mold after processing, accelerate the heat dissipation speed of the mold, improve the utilization rate of the mold, and accelerate the production rate of the product.

[0021] In some embodiments, the loading part 1 is made of graphite. By designing the graphite mold according to the product size, without using carbon paper, the powder material is in direct contact with the graphite, and the product does not need to be ground and processed, which is not only convenient but also cost-saving. And the graphite material has good high-temperature resistance and heat conduction performance, further improving the overall performance of the mold.

[0022] In some embodiments, there are three sets of the slideway 22 and the stopper 23 arranged alternately. The three sets of the slideway 22 and the stopper 23 can be used to replace the slideway 22 according to the distance between the limiting ring 11 on the loading part 1 and the end of the loading part 1. When manufacturing the mold, it is necessary to determine the distance between the limiting ring 11 and the loading part 1 in response to different clamping tools, so as to improve the applicability of the mold to different clamping tools. When an operator connects two molds, he can judge which slideway 22 to install on according to the distance between the limiting ring 11 and the end of the loading part 1, so as to ensure the smooth connection of the two molds and enable the final product to have a sense of hierarchy and a more appreciable appearance.

[0023] In some embodiments, the maximum outer diameter of the loading part 1 is the same as the maximum inner diameter of the docking part 2. The limiting ring 11 of the loading part 1 can smoothly enter the docking part 2 from the channel 21 of the docking part 2, so as to ensure that there is no obstruction when the two molds are connected, quickly and accurately, and improve the connection efficiency.

[0024] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A cylindrical mold structure for hot pressing sintering, comprising a cover plate, characterized in that: The invention comprises a loading portion (1) and a docking portion (2), wherein a limit ring (11) is provided on the outer surface of the loading portion (1), a channel (21) is provided inside the docking portion (2), an end of the channel (21) is connected to a slideway (22), a stopper (23) is provided inside the docking portion (2) on a side close to the channel (21), and the cover plate is used to cover the loading portion (1).

2. A cylindrical mold structure for hot pressing sintering according to claim 1, characterized in that: The docking portion (2) is connected to the filling portion (1) via threads.

3. The cylindrical mold structure for hot pressing sintering according to claim 1, characterized in that: The butt joint (2) is penetrated by a plurality of heat dissipation holes (24).

4. The cylindrical mold structure for hot pressing sintering according to claim 1, characterized in that: The filling part (1) is made of graphite.

5. The cylindrical mold structure for hot pressing sintering according to claim 1, characterized in that: Three of the slideways (22) and the stoppers (23) are alternately arranged.

6. The cylindrical mold structure for hot pressing sintering according to claim 1, characterized in that: The maximum outer diameter of the filling portion (1) is the same as the maximum inner diameter of the docking portion (2).

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