Automatic forming machine for hot extrusion of ceramic powder

Abstract

The utility model relates to the technical field of extrusion forming machines, and particularly discloses a ceramic powder hot extrusion automatic forming machine which comprises a forming machine body, a raw material box is fixedly connected to one side of the top of the forming machine body, and a nitrogen preparation circulating system is fixedly connected to one side of the inner bottom wall of the forming machine body. A nitrogen pressure detection system is arranged on one side of the nitrogen preparation circulating system and one side of the inner bottom wall of the forming machine main body, and a reciprocating filling system is fixedly connected to the other side of the top of the forming machine main body; according to the utility model, nitrogen is charged through intelligent control equipment to form positive pressure on a working surface to isolate air instead of vacuumizing, a prepared finished product is automatically cooled, and after raw materials are filled, one-key starting and full-automatic production are realized, so that manual operation and manufacturing procedures are reduced, the working voltage of an electric heating body is improved by the manufactured ceramic tube, and the production efficiency is improved. And the power distribution cost is reduced, so that the effect of integrally and automatically manufacturing the ceramic tube is achieved, and the manufacturing efficiency is conveniently improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion molding machines, in particular to a ceramic powder hot extrusion automatic molding machine. Background Art

[0002] The preparation of ceramic powder is the basis of the working of the molding machine. The particle size, purity, dispersibility and other characteristics of the ceramic powder have an important influence on the molding effect. Therefore, in the preparation process of ceramic powder, it is necessary to go through fine grinding, screening and mixing processes to ensure that the quality of the powder is stable and reliable. Then the molding machine uses a hot extrusion process to extrude the ceramic powder through a mold at high temperature.

[0003] However, when using the existing automatic forming machine, the material needs to be fused and divided into strips first, and then processed into ceramic tubes using a lathe. Although such a device can make ceramic tubes, it requires the use of multiple processes to operate separately, which makes the use of the device more inconvenient and affects its manufacturing efficiency, so it needs to be improved by staff. Utility Model Content

[0004] The purpose of the utility model is to provide a ceramic powder hot extrusion automatic molding machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Ceramic powder hot extrusion automatic molding machine, including:

[0007] Molding machine body;

[0008] A raw material box is fixedly connected to one side of the top of the molding machine body, a nitrogen preparation circulation system is fixedly connected to one side of the inner bottom wall of the molding machine body, and a nitrogen pressure detection system is provided on one side of the nitrogen preparation circulation system and one side of the inner bottom wall of the molding machine body;

[0009] A reciprocating filling system is fixedly connected to the other side of the top of the molding machine body, and the front end of the reciprocating filling system is plugged into the inner wall of the raw material box, the tail end of the reciprocating filling system is fixedly connected to a pressure sensor, and one side of the back of the pressure sensor is fixedly connected to a high-pressure oil cylinder.

[0010] Preferably, a hydraulic station is fixedly connected to the other side of the inner bottom wall of the molding machine body, a hydraulic system is installed at the output end of the hydraulic station, and the hydraulic system is connected to the high-pressure oil cylinder.

[0011] Preferably, an electric claw core pulling system is fixedly connected to one side of the top of the molding machine body, a mold mandrel is installed at the output end of the electric claw core pulling system, a mandrel support system is sleeved on the surface of the mold mandrel, a finished ceramic tube is arranged on the back of the mandrel support system, and a mold closing block is arranged on one side of the mandrel support system.

[0012] Preferably, one side of the mold closing block is fixedly connected to a thermal insulation system, one side of the inner wall of the thermal insulation system is fixedly connected to a non-contact temperature sensor, one side of the non-contact temperature sensor is fixedly connected to a high-frequency heating coil, one side of the inner wall of the high-frequency heating coil is fixedly connected to an outer carbon fiber mold, and one side of the inner wall of the outer carbon fiber mold is fixedly connected to an inner high-purity graphite mold.

[0013] Preferably, one side of the surface of the finished ceramic tube is fixedly connected to a material receiving and blanking system, one side of the bottom of the material receiving and blanking system is fixedly connected to a finished product area temperature measuring and counting system, and one side of the finished product area temperature measuring and counting system is provided with a finished product cooling system.

[0014] Preferably, a waste heat refrigeration system is fixedly connected to one side of the inner wall of the molding machine body, and a power distribution and PLC control system is fixedly connected to one side of the top of the molding machine body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Through intelligent control equipment, nitrogen is filled to form a positive pressure on the working surface to isolate the air instead of vacuuming. The finished product is automatically cooled down. After filling the raw materials, it is started with one button and fully automatic production is carried out, thereby reducing manual operation and production processes. The produced ceramic tubes increase the working voltage of the electric heating body and reduce the power distribution cost, thereby achieving the effect of integrated automatic production of ceramic tubes and facilitating the improvement of production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a plan view of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a top view of the utility model;

[0020] In the figure: 1. Molding machine body; 2. Raw material box; 3. Nitrogen preparation circulation system; 4. Nitrogen pressure detection system; 5. Reciprocating filler system; 6. Pressure sensor; 7. High-pressure cylinder; 8. Hydraulic station; 9. Hydraulic system; 10. Electric claw core pulling system; 11. Mold mandrel; 12. Mandrel support system; 13. Finished ceramic tube; 14. Mold closing block; 15. Thermal insulation system; 16. Non-contact temperature sensor; 17. High-frequency heating coil; 18. Outer carbon fiber mold; 19. Inner high-purity graphite mold; 20. Material receiving and blanking system; 21. Finished product area temperature measurement and counting system; 22. Finished product cooling system; 23. Waste heat refrigeration system; 24. Power distribution and PLC control system. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figures 1 to 3 As shown, the ceramic powder hot extrusion automatic molding machine comprises:

[0024] Molding machine body 1;

[0025] A raw material box 2 is fixedly connected to one side of the top of the molding machine body 1, and the raw material (boron nitride, aluminum, silicon, etc.) powder is loaded into the raw material box 2, and the feed port is reliably closed. A nitrogen preparation circulation system 3 is fixedly connected to one side of the inner bottom wall of the molding machine body 1, and a nitrogen pressure detection system 4 is provided on one side of the nitrogen preparation circulation system 3 and one side of the inner bottom wall of the molding machine body 1;

[0026] A reciprocating filling system 5 is fixedly connected to the other side of the top of the molding machine body 1, and the front end of the reciprocating filling system 5 is inserted into the inner wall of the raw material box 2. After the nitrogen pressure detection system 4 detects that the nitrogen pressure of the nitrogen preparation circulation system 3 reaches a predetermined value, the reciprocating filling system 5 is automatically started. The reciprocating filling system 5 pushes the powder raw material into the mold cavity and increases the density. The operating current value of the reciprocating filling system 5 changes, and the material pushing is stopped when the predetermined value is reached. The tail end of the reciprocating filling system 5 is fixedly connected to a pressure sensor 6, and one side of the back of the pressure sensor 6 is fixedly connected to a high-pressure cylinder 7. The pressure sensor 6 detects that the predetermined stroke and pressure of the high-pressure cylinder 7 do not meet the standards, and the reciprocating filling system 5 is automatically started to continue filling (reciprocating in this way until the stroke and pressure of the high-pressure cylinder 7 reach the preset values).

[0027] A hydraulic station 8 is fixedly connected to the other side of the bottom wall of the molding machine body 1, and a hydraulic system 9 is installed at the output end of the hydraulic station 8, and the hydraulic system 9 is connected to the high-pressure oil cylinder 7. An electric claw core pulling system 10 is fixedly connected to one side of the top of the molding machine body 1. The high-pressure oil cylinder 7 maintains pressure, and the high-frequency electric heating system is automatically started to detect the temperature and sintering time. After reaching the standard, the electric claw core pulling system 10 is automatically started to open the mold closing block 14, the high-pressure oil cylinder 7 is decompressed, and the high-pressure oil cylinder 7 is automatically started to push the finished product and the mold apart. The output end of the electric claw core pulling system 10 is installed with a mold core shaft 11, the surface of the mold core shaft 11 is sleeved with a core shaft support system 12, the back of the core shaft support system 12 is provided with a finished product ceramic tube 13, and one side of the core shaft support system 12 is provided with a mold closing block 14. The material receiving and blanking system 20 automatically sends the finished product to the finished product cooling system 22, and the electric claw core pulling system 10 is automatically started. The mold core shaft 11 is reset, the mold closing block 14 is reset, and the high-pressure oil cylinder 7 is reset, and the next round of production is automatically started. The mold closing block 1 4 is fixedly connected to a thermal insulation system 15 on one side, a non-contact temperature sensor 16 is fixedly connected to one side of the inner wall of the thermal insulation system 15, a high-frequency heating coil 17 is fixedly connected to one side of the inner wall of the high-frequency heating coil 17, an outer carbon fiber mold 18 is fixedly connected to one side of the inner wall of the outer carbon fiber mold 18, an inner high-purity graphite mold 19 is fixedly connected to one side of the surface of the finished ceramic tube 13, a material receiving and blanking system 20 is fixedly connected to one side of the bottom of the material receiving and blanking system 20, a finished product area temperature measuring and counting system 21 is fixedly connected, the finished product area temperature measuring and counting system 21 automatically records, and after reaching a preset number, it automatically stops and opens the closed door to take out the product, and a finished product cooling system 22 is arranged on one side of the finished product area temperature measuring and counting system 21, a waste heat refrigeration system 23 is fixedly connected to one side of the inner wall of the molding machine body 1, and a power distribution and plc control system 24 is fixedly connected to one side of the top of the molding machine body 1, and the power distribution and plc control system 24 starts the nitrogen preparation circulation system 3 with one button.

[0028] This design only takes the production of ceramic tubes as an example. Various ceramic profiles can be produced by replacing the mold.

[0029] Working principle: When in use, the raw material (boron nitride, aluminum, silicon, etc.) powder is loaded into the raw material box 2, and the feed port is reliably closed. The power distribution and PLC control system 24 starts the nitrogen preparation circulation system 3 with one button. After the nitrogen pressure detection system 4 detects that the nitrogen pressure of the nitrogen preparation circulation system 3 reaches a predetermined value, the reciprocating filling system 5 is automatically started. The reciprocating filling system 5 pushes the powder raw material into the mold cavity and increases the density. The operating current value of the reciprocating filling system 5 changes, and the material pushing is stopped when the predetermined value is reached. The high-pressure oil cylinder 7 is automatically started to compact the powder. The pressure sensor 6 detects that the predetermined stroke and pressure of the high-pressure oil cylinder 7 are not up to standard, and the reciprocating filling system 5 is automatically started to continue filling (reciprocating until The stroke and pressure of the high-pressure oil cylinder 7 reach the preset value), the high-pressure oil cylinder 7 maintains the pressure, and the high-frequency electric heating system is automatically started to detect the temperature and sintering time. After reaching the standard, the electric claw core pulling system 10 is automatically started to open the mold closing block 14, and the high-pressure oil cylinder 7 is decompressed. The high-pressure oil cylinder 7 is automatically started to push the finished product out of the mold with a long stroke, and the material receiving and blanking system 20 automatically sends the finished product to the finished product cooling system 22, and the electric claw core pulling system 10 is automatically started. The mold core shaft 11 is reset, the mold closing block 14 is reset, and the high-pressure oil cylinder 7 is reset. The next round of production is automatically started, and the temperature measurement and counting system 21 in the finished product area automatically records. After reaching the preset number, the machine is automatically stopped to open the closed door and then take out the product.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ceramic powder hot extrusion automatic molding machine, characterized in that, include: Molding machine body (1); A raw material box (2) is fixedly connected to one side of the top of the molding machine body (1), a nitrogen preparation circulation system (3) is fixedly connected to one side of the inner bottom wall of the molding machine body (1), and a nitrogen pressure detection system (4) is provided on one side of the nitrogen preparation circulation system (3) and one side of the inner bottom wall of the molding machine body (1); A reciprocating filling system (5) is fixedly connected to the other side of the top of the molding machine body (1), and the front end of the reciprocating filling system (5) is plugged into the inner wall of the raw material box (2), and the rear end of the reciprocating filling system (5) is fixedly connected to a pressure sensor (6), and one side of the back of the pressure sensor (6) is fixedly connected to a high-pressure oil cylinder (7).

2. The ceramic powder hot extrusion automatic forming machine according to claim 1, characterized in that: A hydraulic station (8) is fixedly connected to the other side of the inner bottom wall of the molding machine body (1), and a hydraulic system (9) is installed at the output end of the hydraulic station (8), and the hydraulic system (9) is connected to the high-pressure oil cylinder (7).

3. The ceramic powder hot extrusion automatic forming machine according to claim 1, characterized in that: An electric claw core pulling system (10) is fixedly connected to one side of the top of the molding machine body (1), a mold core shaft (11) is installed at the output end of the electric claw core pulling system (10), a core shaft support system (12) is sleeved on the surface of the mold core shaft (11), a finished ceramic tube (13) is arranged on the back of the core shaft support system (12), and a mold closing block (14) is arranged on one side of the core shaft support system (12).

4. The ceramic powder hot extrusion automatic forming machine according to claim 3, characterized in that: A heat preservation and insulation system (15) is fixedly connected to one side of the mold closing block (14); a non-contact temperature sensor (16) is fixedly connected to one side of the inner wall of the heat preservation and insulation system (15); a high-frequency heating coil (17) is fixedly connected to one side of the non-contact temperature sensor (16); an outer carbon fiber mold (18) is fixedly connected to one side of the inner wall of the high-frequency heating coil (17); and an inner high-purity graphite mold (19) is fixedly connected to one side of the inner wall of the outer carbon fiber mold (18).

5. The ceramic powder hot extrusion automatic forming machine according to claim 3, characterized in that: A material receiving and blanking system (20) is fixedly connected to one side of the surface of the finished ceramic tube (13), a finished product area temperature measuring and counting system (21) is fixedly connected to one side of the bottom of the material receiving and blanking system (20), and a finished product cooling system (22) is provided on one side of the finished product area temperature measuring and counting system (21).

6. The ceramic powder hot extrusion automatic molding machine according to claim 1, characterized in that: A waste heat cooling system (23) is fixedly connected to one side of the inner wall of the molding machine body (1), and a power distribution and PLC control system (24) is fixedly connected to one side of the top of the molding machine body (1).

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