Silicon nitride ceramic protection tube blank forming die

Abstract

The utility model discloses a silicon nitride ceramic protection tube green body forming die, which relates to the technical field of forming dies and comprises a forming die main body, a forming cavity is arranged in the forming die main body, a fixing plate is fixedly connected to the lower part of the forming die main body, an electric push rod is fixedly mounted on the fixing plate, and the electric push rod is fixedly connected with the forming cavity. The output end of the electric push rod penetrates through the fixed plate to be fixedly connected with a movable plate, and the movable plate is fixedly connected with a connecting rod. Through arrangement of a material pushing ring, an electric push rod and a connecting rod, a formed product can be pushed up, so that material taking and use are facilitated; the tightness between the upper cover and the forming mold main body can be improved through the positioning columns and the positioning grooves; and the main inlet cavity and the branch inlet cavities are arranged, so that the inlet of the forming solution can be accelerated, and the forming efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, in particular to a silicon nitride ceramic protection tube blank forming mold. Background Art

[0002] Silicon nitride is an inorganic substance and an important structural ceramic material. It has high hardness, inherent lubricity, and wear resistance. It is an atomic crystal and is resistant to oxidation at high temperatures. When the silicon nitride ceramic protective tube blank is formed, a forming mold is required.

[0003] In the prior art, although the molding mold can be used for molding, the molded product is not convenient to take out and is not convenient to use. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, one of the purposes of the utility model is to provide a silicon nitride ceramic protection tube blank forming mold, which can push up the formed product through the set push ring, electric push rod and connecting rod, so as to facilitate material removal and use; the set positioning columns and positioning grooves can improve the tightness between the upper cover and the forming mold body; the set main entry cavity and sub-entry cavity can accelerate the entry of the forming solution, and the forming efficiency is high.

[0005] One of the purposes of the utility model is achieved by the following technical solution: a silicon nitride ceramic protection tube blank forming mold, comprising a forming mold body, a forming cavity is arranged inside the forming mold body, a fixed plate is fixedly connected to the lower part of the forming mold body, an electric push rod is fixedly installed on the fixed plate, the output end of the electric push rod passes through the fixed plate and is fixedly connected to a movable plate, a connecting rod is fixedly connected to the movable plate, the connecting rod passes through the bottom of the forming mold body and is fixedly connected to a push ring, the push ring is located at the bottom of the forming cavity, a main entry cavity and a sub-entry cavity are arranged on the upper part of the forming mold body, a positioning column is fixedly connected to the upper part of the forming mold body, an upper cover is arranged above the forming mold body, a positioning groove is arranged in the upper cover, an upper sealing ring is fixedly connected to the lower part of the upper cover, and an entry tube is fixedly connected to the upper part of the upper cover. The push ring, electric push rod and connecting rod can be used to push up the formed product, making it convenient to take out the material; the positioning column and positioning groove can improve the tightness between the upper cover and the main body of the forming mold; the main entry cavity and sub-entry cavity can accelerate the entry of the forming solution, and the forming efficiency is high.

[0006] According to the silicon nitride ceramic protection tube blank forming die, the positioning column and the positioning groove cooperate with each other, and the positioning column is located outside the forming cavity.

[0007] According to the silicon nitride ceramic protection tube blank forming die, the number of the positioning columns is four and they are evenly arranged around the circumference.

[0008] According to the silicon nitride ceramic protection tube blank forming die, the number of the connecting rods is four and they are evenly arranged around the circumference.

[0009] According to the silicon nitride ceramic protection tube blank forming die, the main entry cavity is communicated with the sub-entry cavity.

[0010] According to the silicon nitride ceramic protection tube blank forming die, there are two sub-entry cavities, which are axisymmetrically arranged.

[0011] According to the silicon nitride ceramic protection tube blank forming die, the upper sealing ring and the forming cavity cooperate with each other.

[0012] According to the silicon nitride ceramic protection tube blank forming die, the inlet tube is connected to the main inlet cavity.

[0013] Beneficial Effects

[0014] Compared with the prior art, the present invention can push up the formed product through the setting of the push ring, electric push rod and connecting rod, so as to facilitate the material taking and use; the setting of the positioning column and positioning groove can improve the tightness between the upper cover and the forming mold body; the setting of the main entry cavity and the sub-entry cavity can accelerate the entry of the forming solution, and the forming efficiency is high.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the structure of a silicon nitride ceramic protection tube blank forming die of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a silicon nitride ceramic protection tube blank forming mold of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the upper cover portion of a silicon nitride ceramic protection tube blank forming die of the utility model;

[0020] Figure 4 This is an enlarged view of the main entrance cavity of a silicon nitride ceramic protection tube blank forming die of the utility model.

[0021] Legend:

[0022] 1. Molding mold body; 101. Fixed plate; 102. Electric push rod; 103. Moving plate; 104. Connecting rod; 105. Positioning column; 106. Molding cavity; 107. Pushing ring; 108. Main entry cavity; 109. Sub-entry cavity; 2. Upper cover; 201. Entry tube; 202. Positioning groove; 203. Upper sealing ring. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-4The utility model embodiment is a silicon nitride ceramic protection tube blank forming mold, which includes a forming mold body 1, the inside of the forming mold body 1 is provided with a forming cavity 106, the lower part of the forming mold body 1 is fixedly connected with a fixed plate 101, the fixed plate 101 is fixedly installed with an electric push rod 102, the output end of the electric push rod 102 passes through the fixed plate 101 and is fixedly connected with a moving plate 103, the moving plate 103 is fixedly connected with a connecting rod 104, the number of the connecting rods 104 is four, and they are evenly arranged on the circumference, the connecting rods 104 passes through the bottom of the molding mold body 1 and is fixedly connected with a push ring 107, which is located at the bottom of the molding cavity 106. The upper part of the molding mold body 1 is provided with a main entry cavity 108 and a sub-entry cavity 109. There are two sub-entry cavities 109, which are axially symmetrically arranged. The main entry cavity 108 is connected to the sub-entry cavity 109. The upper part of the molding mold body 1 is fixedly connected with a positioning column 105, which cooperates with the positioning groove 202. The positioning column 105 is located outside the molding cavity 106. On the side, there are four positioning posts 105, which are evenly arranged on the circumference. An upper cover 2 is arranged above the molding mold body 1, and a positioning groove 202 is arranged in the upper cover 2. An upper sealing ring 203 is fixedly connected to the lower part of the upper cover 2, and the upper sealing ring 203 cooperates with the molding cavity 106. An inlet pipe 201 is fixedly connected to the upper part of the upper cover 2, and the inlet pipe 201 is connected to the main inlet cavity 108. When in use, the fixing plate 101 installs the molding mold body 1, and then the upper cover 2 is installed on the molding mold body 1, and the positioning posts 10 5 cooperates with the positioning groove 202 to improve the tightness of the connection between the two. Then the upper sealing ring 203 can block the upper part of the molding cavity 106, and then the molding solution is added through the inlet tube 201, and then enters the molding cavity 106 through the main inlet cavity 108 and the sub-entry cavity 109. After cooling and molding, the electric push rod 102 drives the moving plate 103 to move up, and the moving plate 103 drives the push ring 107 to move up through the connecting rod 104, so that after opening the upper cover 2, the product can be pushed up, which is convenient for taking materials and easy to use. The push ring 107, the electric push rod 102, and the connecting rod 104 can push the molded product up, which is convenient for taking materials and using; the positioning column 105 and the positioning groove 202 can improve the tightness between the upper cover 2 and the molding mold body 1; the main inlet cavity 108 and the sub-entry cavity 109 can accelerate the entry of the molding solution, and the molding efficiency is high.

[0025] Working principle: When in use, the fixing plate 101 installs the molding mold body 1, and then the upper cover 2 is installed on the molding mold body 1, and the positioning column 105 and the positioning groove 202 cooperate with each other to improve the tightness of the connection between the two, and then the upper sealing ring 203 can block the upper part of the molding cavity 106, and then the molding solution is added through the entry tube 201, and then enters the molding cavity 106 through the main entry cavity 108 and the sub-entry cavity 109. After cooling and molding, the electric push rod 102 drives the moving plate 103 to move upward, and the moving plate 103 drives the pushing ring 107 to move upward through the connecting rod 104, so that after opening the upper cover 2, the product can be pushed up, which is convenient for taking materials and easy to use.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A silicon nitride ceramic protection tube blank forming die, comprising a forming die body (1), wherein a forming cavity (106) is provided inside the forming die body (1), characterized in that: The lower part of the molding die main body (1) is fixedly connected to a fixed plate (101), the fixed plate (101) is fixedly mounted with an electric push rod (102), the output end of the electric push rod (102) passes through the fixed plate (101) and is fixedly connected to a movable plate (103), the movable plate (103) is fixedly connected to a connecting rod (104), the connecting rod (104) passes through the bottom of the molding die main body (1) and is fixedly connected to a push ring (107), the push ring (107) Located at the bottom of the molding cavity (106), the upper part of the molding mold body (1) is provided with a main entry cavity (108) and a sub-entry cavity (109), the upper part of the molding mold body (1) is fixedly connected with a positioning column (105), the upper part of the molding mold body (1) is provided with an upper cover (2), a positioning groove (202) is provided in the upper cover (2), the lower part of the upper cover (2) is fixedly connected with an upper sealing ring (203), and the upper part of the upper cover (2) is fixedly connected with an entry pipe (201).

2. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: The positioning column (105) cooperates with the positioning groove (202), and the positioning column (105) is located outside the molding cavity (106).

3. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: There are four positioning posts (105) which are evenly arranged around the circumference.

4. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: The number of the connecting rods (104) is four and they are evenly arranged around the circumference.

5. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: The main entry chamber (108) is communicated with the branch entry chamber (109).

6. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: There are two sub-entry chambers (109) and they are arranged in an axisymmetric manner.

7. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: The upper sealing ring (203) cooperates with the molding cavity (106).

8. The silicon nitride ceramic protection tube blank forming die according to claim 1, characterized in that: The inlet pipe (201) is in communication with the main inlet chamber (108).

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