High-temperature-resistant graphite mold

Abstract

The utility model discloses a high-temperature-resistant graphite mold, which belongs to the technical field of graphite molds and comprises a base, a movable mold is rotatably connected to the top end of the base, an ejector plate matched with the movable mold is arranged in an inner cavity of the movable mold, and a limiting ring matched with the movable mold is rotatably connected to the top end of the movable mold. According to the scheme, after a finished product is sintered, the movable mold can be driven by the driving assembly to rotate in a small range, so that relative displacement is generated between the outer wall of the finished product and the inner wall of the movable mold, and adhesion between the finished product and the mold can be eliminated through the small-range relative displacement; and then the finished product is ejected out through a second hydraulic rod and an ejection plate, so that rapid ejection of the mold is achieved, adhesion of the finished product and the mold is avoided, abrasion of the surface of the finished product is reduced to the maximum extent, the practicability of the device is improved, and the yield of the finished product is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite molds, and more specifically, to a high-temperature resistant graphite mold. Background Art

[0002] A graphite mold is a mold made of graphite material. Graphite has good thermal conductivity, high-temperature resistance and chemical stability, so it is widely used in the field of mold manufacturing. Graphite molds are usually used in the forming and processing of high-temperature molten metals, glass and other materials, and can withstand high temperature, high pressure and corrosive gas environments to ensure the accuracy and surface quality of products. Graphite molds have important application value in industries such as casting, glass manufacturing, and semiconductor manufacturing.

[0003] Chinese Patent Grant Publication No.: CN217438346U provides a high-temperature resistant wafer sintering graphite mold. This solution assembles the mold body and the movable mold through the fixing buckle and the clamping plate of the fixing mechanism, and forms a complete sintering graphite mold. After sintering is completed, the two are disassembled to form a certain gap between the finished product and the side wall of the sintering groove, so as to facilitate the removal of the finished product.

[0004] However, this solution aims to eliminate the adhesion between the finished product and the sintering groove, so as to facilitate the removal of the finished product. Therefore, a movable mold is arranged between the inside of the sintering groove and the finished product. However, the movable mold will also adhere to the finished product, and users will also face the problem of difficult removal when taking out the movable mold. Therefore, the beneficial effect of this solution is not obvious. Therefore, a high-temperature resistant graphite mold is proposed for the above problems. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a high-temperature resistant graphite mold. After the finished product is sintered, the movable mold can be driven by a driving component to rotate slightly, so as to generate a relative displacement between the outer wall of the finished product and the inner wall of the movable mold. Through this small relative displacement, the adhesion between the finished product and the mold can be eliminated, so that the finished product is easy to take out. Then, the finished product is ejected by the second hydraulic rod and the ejecting plate, thus realizing the rapid ejection of the mold, avoiding the adhesion between the finished product and the mold, minimizing the wear on the surface of the finished product to the greatest extent, improving the practicability of the device, and increasing the yield rate of the finished product.

[0007] 2. Technical Solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A high-temperature resistant graphite mold, including a base, the top of the base is rotatably connected with a movable mold, the inner cavity of the movable mold is provided with an ejector plate matching it, and the top of the movable mold is rotatably connected with a limiting ring matching it. The outside of the movable mold is provided with a housing, the housing is fixedly connected with the base, the limiting ring is fixedly connected with the housing, and a fixed block is slidably connected to the limiting ring. A driving component is arranged inside the housing.

[0010] Further, the driving component includes a servo motor and a gear ring. The servo motor is installed on the top of the base, and the output end of the servo motor is fixedly connected with a gear. The gear ring is fixedly connected to the outer end of the movable mold, and the gear and the gear ring are meshed and connected.

[0011] Further, the fixed block matches the limiting ring, and the inner wall of the fixed block and the inner wall of the limiting ring form a complete surface.

[0012] Further, a first hydraulic rod is installed on the housing, and the output end of the first hydraulic rod is fixedly connected with the fixed block.

[0013] Further, a second hydraulic rod is installed on the base, and a through hole communicating with the inner cavity of the movable mold is opened on the base.

[0014] Further, the second hydraulic rod penetrates through the through hole and extends into the inner cavity of the movable mold, and the output end of the second hydraulic rod is fixedly connected with the ejector plate.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] After the sintering of the finished product is completed, the driving component can drive the movable mold to rotate slightly, so that a relative displacement is generated between the outer wall of the finished product and the inner wall of the movable mold. Through this small relative displacement, the adhesion between the finished product and the mold can be eliminated, so that the finished product is convenient to take out. Then, the finished product is ejected by the second hydraulic rod and the ejector plate. Thus, the rapid ejection of the mold is realized, avoiding the adhesion between the finished product and the mold, and minimizing the wear on the surface of the finished product to the greatest extent, improving the practicability of the device and enhancing the qualified rate of the finished product. Brief description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the housing of the present utility model;

[0020] Figure 3 It is a schematic diagram of the partial explosion structure of the present utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the utility model.

[0022] Explanation of reference numerals in the figure:

[0023] 1. Base; 2. Outer shell; 3. Movable mold; 4. Driving assembly; 401. Servo motor; 402. Gear; 403. Ring gear; 5. Limiting ring; 6. Fixed block; 7. First hydraulic rod; 8. Ejector plate; 9. Second hydraulic rod. Specific embodiments

[0024] 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 of 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.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", 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 therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 internal communication of 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 circumstances.

[0027] Embodiment:

[0028] Please refer to Figure 1 、 24, A high-temperature resistant graphite mold, comprising a base 1. The top end of the base 1 is rotatably connected to a movable mold 3. The inner cavity of the movable mold 3 is provided with an ejection plate 8 that matches it. And the top end of the movable mold 3 is rotatably connected to a limiting ring 5 that matches it. The outside of the movable mold 3 is provided with a housing 2. The housing 2 is fixedly connected to the base 1. The limiting ring 5 is fixedly connected to the housing 2. And a fixing block 6 is slidably connected to the limiting ring 5. A driving component 4 is arranged inside the housing 2.

[0029] A graphite mold is a mold made of graphite material. Graphite has good thermal conductivity, high-temperature resistance and chemical stability. Therefore, it is widely used in the field of mold manufacturing. Graphite molds are usually used in the forming and processing of materials such as high-temperature molten metals and glass. They can withstand high temperatures, high pressures and corrosive gas environments, ensuring the accuracy and surface quality of the products. Graphite molds have important application values in industries such as casting, glass manufacturing, and semiconductor manufacturing.

[0030] During the sintering process of the workpiece in the graphite mold, an oxide skin will appear on the metal surface. This will increase the adhesion force between the metal and the graphite surface, resulting in the adhesion of the finished product to the inner wall of the mold, making it difficult to take out the finished product. And at this time, if the finished product is forced to be ejected, it may cause damage to the surface of the finished product, and scratches, abrasions or other damages may appear on the surface, affecting the quality and appearance of the finished product.

[0031] In this solution, the workpiece is sintered inside the movable mold 3 and the limiting ring 5. The ejection plate 8 seals the bottom end of the movable mold 3, so that the molten material can precipitate inside the movable mold 3 and the limiting ring 5. When the sintering is completed, the molten material forms a finished product inside the movable mold 3 and the limiting ring 5. At this time, the user can fix the upper end of the side of the finished product through the fixing block 6, so that the finished product is fixed inside the movable mold 3 and remains relatively stationary with the limiting ring 5. Then, the driving component 4 drives the movable mold 3 to rotate slightly on the base 1. And the finished product remains stationary under the fixation of the fixing block 6, so that a relative displacement is generated between the outer wall of the finished product and the inner wall of the movable mold 3. Through this small relative displacement, the adhesion between the finished product and the mold can be eliminated, so that the finished product is easy to take out, avoiding large abrasion to the appearance of the finished product when directly taking out the finished product.

[0032] Please refer to Figures 3-4 , The driving component 4 includes a servo motor 401 and a gear ring 403. The servo motor 401 is installed at the top end of the base 1. And the output end of the servo motor 401 is fixedly connected to a gear 402. The gear ring 403 is fixedly connected to the outer end of the movable mold 3. The gear 402 and the gear ring 403 are meshed and connected.

[0033] In this solution, starting the servo motor 401 can drive the gear 402 to rotate. Through the gear 402, the gear ring 403 can be driven to rotate, and then the movable mold 3 can be driven to rotate by the gear ring 403. Since the limiting ring 5 is fixedly connected to the housing 2, the rotation of the movable mold 3 will not affect the limiting ring 5.

[0034] Please refer to Figure 3 , the fixing block 6 matches the limiting ring 5, and the inner walls of the fixing block 6 and the limiting ring 5 form a complete surface. A first hydraulic rod 7 is installed on the housing 2, and the output end of the first hydraulic rod 7 is fixedly connected to the fixing block 6.

[0035] Before the fixing block 6 clamps the finished product, the inner walls of the fixing block 6 and the limiting ring 5 form a complete surface, so that the movable fixing block 6 will not affect the sintering of the finished product. When it is necessary to fix the finished product, start the first hydraulic rod 7 to push the fixing block 6 to slide inward of the limiting ring 5, and the fixing block 6 can fix the finished product inside the limiting ring 5.

[0036] The heights of both the fixing block 6 and the limiting ring 5 are relatively small. Such a setting is to increase the contact area between the finished product and the movable mold 3 as much as possible while fixing the finished product, so that more areas on the surface of the finished product can eliminate the adhesion with the mold, making it more convenient for the finished product to be separated.

[0037] Please refer to Figure 4 , a second hydraulic rod 9 is installed on the base 1, and a through hole communicating with the inner cavity of the movable mold 3 is provided on the base 1. The second hydraulic rod 9 passes through the through hole and extends into the inner cavity of the movable mold 3, and the output end of the second hydraulic rod 9 is fixedly connected to the ejector plate 8.

[0038] When the adhesion between the finished product and the mold is successfully eliminated, the user starts the second hydraulic rod 9 to drive the ejector plate 8 to lift upward, and the finished product can be ejected from the movable mold 3 and the limiting ring 5. Thus, the rapid ejection of the mold is realized, avoiding the adhesion between the finished product and the mold and minimizing the wear on the surface of the finished product to the greatest extent.

[0039] Working principle:

[0040] During use, the workpiece is sintered inside the movable mold 3 and the limit ring 5. After sintering is completed, the molten material forms a finished product inside the movable mold 3 and the limit ring 5. At this time, the user starts the first hydraulic rod 7 to push the fixed block 6 to slide inward of the limit ring 5, so that the fixed block 6 fixes the finished product inside the limit ring 5, making the finished product and the limit ring 5 relatively stationary. Then, the servo motor 401 is started to drive the gear 402 to rotate. The gear 402 drives the gear ring 403 to rotate, and then the gear ring 403 drives the movable mold 3 to rotate. The driving assembly 4 drives the movable mold 3 to rotate slightly on the base 1, so that a relative displacement is generated between the outer wall of the finished product and the inner wall of the movable mold 3. Through this small relative displacement, the adhesion between the finished product and the mold can be eliminated, making the finished product easy to take out, avoiding large wear on the surface of the finished product caused by directly taking out the finished product. When the adhesion between the finished product and the mold is successfully eliminated, the user starts the second hydraulic rod 9 to drive the ejector plate 8 to lift upward to eject the finished product from the movable mold 3 and the limit ring 5. Thus, the rapid ejection of the mold is realized, avoiding the adhesion between the finished product and the mold and minimizing the wear on the surface of the finished product to the greatest extent.

[0041] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-temperature resistant graphite mold, comprising a base (1), characterized in that: A movable mold (3) is rotatably connected to the top end of the base (1). A ejector plate (8) matching the inner cavity of the movable mold (3) is arranged in the inner cavity of the movable mold (3). A limiting ring (5) matching the movable mold (3) is rotatably connected to the top end of the movable mold (3). An outer shell (2) is arranged outside the movable mold (3). The outer shell (2) is fixedly connected to the base (1). The limiting ring (5) is fixedly connected to the outer shell (2). A fixed block (6) is slidably connected to the limiting ring (5). A driving component (4) is arranged inside the outer shell (2).

2. The high-temperature resistant graphite mold according to claim 1, wherein: The driving component (4) includes a servo motor (401) and a gear ring (403). The servo motor (401) is installed at the top end of the base (1). The output end of the servo motor (401) is fixedly connected to a gear (402). The gear ring (403) is fixedly connected to the outer end of the movable mold (3). The gear (402) and the gear ring (403) are meshed and connected.

3. A high-temperature resistant graphite mold according to claim 1, characterized in that: The fixed block (6) matches the limiting ring (5), and the inner wall of the fixed block (6) and the inner wall of the limiting ring (5) form a complete surface.

4. A high-temperature resistant graphite mold according to claim 1, characterized in that: A first hydraulic rod (7) is installed on the outer shell (2). The output end of the first hydraulic rod (7) is fixedly connected to the fixed block (6).

5. A high-temperature resistant graphite mold according to claim 1, characterized in that: A second hydraulic rod (9) is installed on the base (1). A through hole communicating with the inner cavity of the movable mold (3) is formed in the base (1).

6. The high-temperature resistant graphite mold according to claim 5, characterized in that: The second hydraulic rod (9) penetrates through the through hole and extends into the inner cavity of the movable mold (3). The output end of the second hydraulic rod (9) is fixedly connected to the ejector plate (8).

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