Vacuum high-pressure slip casting equipment for ceramic production

Abstract

The utility model discloses vacuum high-pressure slip casting equipment for ceramic production. The vacuum high-pressure slip casting equipment comprises a slip casting supporting structure, a mold forming mechanism and a high-pressure slip casting mechanism, wherein the mold forming mechanism and the high-pressure slip casting mechanism are arranged in the slip casting supporting structure; the grouting supporting structure comprises a main body supporting plate and a main body supporting shell fixed to the top of the main body supporting plate. The mold forming mechanism comprises a slip casting mold; the high-pressure grouting mechanism comprises a grouting storage tank, a grouting delivery pump is communicated with the grouting storage tank, and the output end of the grouting delivery pump is communicated with the mold grouting input pipe; the prepared ceramic slurry is stored in a grouting storage tank in a vacuum environment and stirred, and it is avoided as much as possible that cavitation bubbles are generated in the slurry in the grouting process, and consequently defects are generated on a ceramic body; before grouting, the interior of the grouting forming mold is vacuumized through the vacuum control mechanism, under the action of negative pressure and cooperative driving of the high-pressure conversion mechanism, the grouting forming mold can be filled with slurry more rapidly and more evenly, and the yield can be increased advantageously.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic high-pressure grouting production, in particular to vacuum high-pressure grouting molding equipment for ceramic production. Background Art

[0002] High-pressure injection molding is a process in which ceramic powder and liquid additives are mixed, injected into a mold under high pressure, and then molded under high temperature and pressure. This process can make ceramic products have higher density and better performance, while also greatly improving production efficiency and reducing costs.

[0003] The main steps of high-pressure grouting molding process include: raw material preparation, mixing, grouting, pressing and sintering, etc. Among them, raw material preparation is a very important step, which directly affects the quality and performance of ceramic products. Generally speaking, the preparation of ceramic powder requires multiple processes such as grinding, screening, drying, etc. to ensure the uniformity and fineness of the powder. The preparation of liquid additives needs to be selected and formulated according to different ceramic materials and process requirements.

[0004] However, the current ceramic production process is prone to internal defects during the high-pressure grouting process and the green body forming process, such as internal residual bubbles, and its high-pressure grouting process needs to be further optimized. Utility Model Content

[0005] The utility model aims to provide a vacuum high-pressure grouting molding device for ceramic production, which optimizes the high-pressure grouting process and avoids defects inside the green body as much as possible.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vacuum high-pressure grouting molding device for ceramic production, comprising a grouting support structure, a mold forming mechanism and a high-pressure grouting mechanism arranged in the grouting support structure;

[0008] The grouting support structure includes a main body support plate and a main body support shell fixed on the top of the main body support plate;

[0009] The mold forming mechanism includes a slip injection molding mold;

[0010] The bottom of the grouting forming mold is provided with a mold grouting input pipe connected to the inside thereof, and the top of the grouting forming mold is provided with a mold grouting discharge pipe connected to the inside thereof;

[0011] The high-pressure grouting mechanism comprises a grouting storage tank, a grouting delivery pump is connected to the grouting storage tank, and the output end of the grouting delivery pump is connected to the mold grouting input pipe.

[0012] Preferably, a mold forming support plate is fixed to the top of the main body support plate. The top of the mold forming support plate has a plurality of mold closing drive receiving grooves extending along its radial direction. A mold forming drive block is slidably connected in the mold closing drive receiving groove;

[0013] The grouting forming mold is assembled by splicing a plurality of grouting forming sub-molds. The plurality of grouting forming sub-molds are respectively and fixedly connected to the respective mold forming drive blocks. A mold closing drive telescopic rod for driving the mold forming drive block to move is provided in the mold closing drive receiving groove.

[0014] Note: The mold closing drive telescopic rod can keep each grouting forming sub-mold in a good mold closing state, avoiding slurry leakage during the high-pressure grouting process. The mold closing drive telescopic rod is used to drive the respective grouting forming sub-molds to move away from each other, facilitating the removal of the solidified blank in the grouting forming mold.

[0015] Each mold forming drive block moves away from each other and drives the respective grouting forming sub-molds to move away from each other. Finally, the blank in the grouting forming mold can be taken out.

[0016] Preferably, a high-pressure conversion mechanism is provided on the top of the main body support plate. The high-pressure conversion mechanism includes a high-pressure conversion grouting tank. A grouting tank piston is slidably connected in the high-pressure conversion grouting tank. The grouting tank piston divides the inside of the high-pressure conversion grouting tank into a high-pressure grouting chamber and a high-pressure drive chamber;

[0017] A high-pressure grouting input pipe and a high-pressure grouting output pipe connected to the high-pressure grouting chamber are fixed to the outside of the high-pressure conversion grouting tank. A grouting input control valve is provided on the high-pressure grouting input pipe, and a grouting output control valve is provided on the high-pressure grouting output pipe;

[0018] A drive balance pipe and a high-pressure drive input pipe connected to the high-pressure drive chamber are fixed to the outside of the high-pressure conversion grouting tank. A balance pipe control valve is provided on the drive balance pipe, and a high-pressure drive control valve is provided on the high-pressure drive input pipe;

[0019] An air compressor is fixed to the top of the main body support plate. The high-pressure drive input pipe is connected to the high-pressure gas storage tank of the air compressor.

[0020] Note: Under the coordinated drive of the high-pressure conversion mechanism, the slurry can be filled into the grouting forming mold more quickly and evenly, which is beneficial to improving the qualified product rate.

[0021] Preferably, a surplus slurry discharge pipe connected to the high-pressure grouting chamber is fixed to the bottom of the high-pressure conversion grouting tank. A surplus slurry discharge control valve is provided on the surplus slurry discharge pipe.

[0022] Note: The surplus slurry discharge pipe is convenient for discharging the surplus slurry remaining in the high-pressure conversion grouting tank during a single grouting process.

[0023] Preferably, a vacuum control mechanism is connected to the slip casting mold. The vacuum control mechanism includes a vacuum control tank. A vacuum control connecting pipe communicating with the inside thereof is fixed on the outer side of the vacuum control tank. The other end of the vacuum control connecting pipe is communicated with the mold slip discharge pipe. A vacuum connection control valve is provided on the vacuum control connecting pipe.

[0024] A vacuum discharge connecting pipe communicating with the inside thereof is provided at the top of the vacuum control tank. A vacuum discharge control valve is provided on the vacuum discharge connecting pipe.

[0025] A vacuum pump is fixed on the top of the main body support plate. The vacuum discharge connecting pipe is communicated with the input end of the vacuum pump.

[0026] Note: Before slip casting, the inside of the slip casting mold is evacuated by the vacuum control mechanism. Under the negative pressure and the collaborative drive of the high-pressure conversion mechanism, the slip can fill the slip casting mold more quickly and evenly, which is beneficial to improving the yield rate.

[0027] Preferably, a slip casting buffer shell is communicated between the vacuum control connecting pipe and the mold slip discharge pipe. A slip casting buffer outer discharge pipe communicating with the inside thereof is provided at the bottom of the slip casting buffer shell. A buffer outer discharge control valve is provided on the slip casting buffer outer discharge pipe.

[0028] Note: It is convenient to discharge the excess ceramic slip from the mold slip discharge pipe into the slip casting buffer shell during the slip casting process, and it is convenient to discharge the ceramic slip stored in the slip casting buffer shell through the slip casting buffer outer discharge pipe subsequently.

[0029] Compared with the prior art, the beneficial effects of the present utility model are reflected in the following aspects:

[0030] 1. The structure of the present utility model is reasonably designed. The prepared ceramic slip is stored in the slip casting storage tank in a vacuum environment, and with the continuous agitation of the stirring blades, the air dissolved in the slip can be more thoroughly discharged, and it is possible to avoid as much as possible the generation of cavitation bubbles in the slip during the slip casting process, resulting in defects inside the formed ceramic blank.

[0031] 2. The present utility model is convenient to operate. Before slip casting, the inside of the slip casting mold is evacuated by the vacuum control mechanism. Under the negative pressure and the collaborative drive of the high-pressure conversion mechanism, the slip can fill the slip casting mold more quickly and evenly, which is beneficial to improving the yield rate.

[0032] 3. The present utility model is provided with a slip casting buffer shell communicated between the vacuum control connecting pipe and the mold slip discharge pipe, which is convenient to discharge the excess ceramic slip from the mold slip discharge pipe into the slip casting buffer shell during the slip casting process, and it is convenient to discharge the ceramic slip stored in the slip casting buffer shell through the slip casting buffer outer discharge pipe subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the front view of the present utility model;

[0034] Figure 2 is Figure 1 the top view of;

[0035] Figure 3 is the structural schematic diagram of the high-pressure conversion mechanism of the present utility model;

[0036] Figure 4 is the structural schematic diagram of the vacuum control mechanism of the present utility model.

[0037] In the figure, 10 - grouting support structure, 11 - main body support plate, 12 - main body support housing, 20 - mold forming mechanism, 21 - mold forming support plate, 211 - die clamping drive accommodating groove, 22 - mold forming drive block, 221 - die clamping drive telescopic rod, 23 - grouting forming mold, 230 - grouting forming split mold body, 231 - mold grouting input pipe, 232 - mold grouting discharge pipe, 30 - high-pressure grouting mechanism, 31 - grouting storage tank, 32 - grouting transfer pump, 33 - high-pressure conversion mechanism, 331 - high-pressure conversion grouting tank, 332 - grouting tank piston, 333 - high-pressure grouting chamber, 334 - high-pressure drive chamber, 335 - high-pressure grouting input pipe, 3351 - grouting input control valve, 336 - high-pressure grouting output pipe, 3361 - grouting output control valve, 337 - drive balance pipe, 3371 - balance pipe control valve, 338 - high-pressure drive input pipe, 3381 - high-pressure drive control valve, 339 - air compressor, 34 - vacuum control mechanism, 341 - vacuum control tank, 342 - vacuum control communication pipe, 3421 - vacuum communication control valve, 343 - exhaust vacuum communication pipe, 3431 - exhaust vacuum control valve, 344 - vacuum pump, 38 - grouting buffer housing, 351 - grouting buffer outer discharge pipe, 3511 - buffer outer discharge control valve, 38 - slurry stirring shaft, 381 - stirring blade, 382 - stirring drive motor, 39 - surplus slurry outer discharge pipe, 391 - surplus slurry outer discharge control valve. Specific embodiments

[0038] The following combines Figures 1-4 to describe the present utility model in detail. For the convenience of narration, the following directions are defined as follows: The up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of each front view or structural schematic diagram itself.

[0039] Embodiment:

[0040] A vacuum high-pressure grouting forming device for ceramic production, as Figure 1 shown, includes a grouting support structure 10, a mold forming mechanism 20 arranged in the grouting support structure 10, and a high-pressure grouting mechanism 30;

[0041] The grouting support structure 10 includes a main support plate 11 and a main support housing 12 fixed on the top of the main support plate 11;

[0042] The mold forming mechanism 20 includes a grouting forming mold 23;

[0043] The bottom of the grouting forming mold 23 has a mold grouting input pipe 231 connected to its interior, and the top of the grouting forming mold 23 has a mold grouting discharge pipe 232 connected to its interior;

[0044] The high-pressure grouting mechanism 30 includes a grouting storage tank 31, a grouting transfer pump 32 is connected to the grouting storage tank 31, and the output end of the grouting transfer pump 32 is connected to the mold grouting input pipe 231.

[0045] As Figure 1 shown, a slurry stirring shaft 38 is rotatably connected to the inner top of the grouting storage tank 31. A plurality of stirring blades 381 are fixed on the slurry stirring shaft 38, and the slurry stirring shaft 38 is driven to rotate by a stirring drive motor 382 fixed on the top of the grouting storage tank 31.

[0046] As Figure 1 shown, a mold forming support disk 21 is fixed on the top of the main support plate 11. As Figure 2 shown, the mold forming support disk 21 is of a disk-shaped structure. The top of the mold forming support disk 21 has a plurality of mold closing drive receiving grooves 211 extending along its radial direction. A mold forming drive block 22 is slidably connected in the mold closing drive receiving grooves 211;

[0047] The grouting forming mold 23 is formed by splicing a plurality of grouting forming sub-molds 230. The plurality of grouting forming sub-molds 230 are respectively fixedly connected to the respective mold forming drive blocks 22. A mold closing drive telescopic rod 221 for driving the mold forming drive block 22 to move is provided in the mold closing drive receiving groove 211;

[0048] The mold closing drive telescopic rod 221 is an electric control telescopic rod. The outer rod end of the mold closing drive telescopic rod 221 is fixedly connected to the inner side wall of the mold closing drive receiving groove 211, and the inner rod end of the mold closing drive telescopic rod 221 is fixedly connected to the mold forming drive block 22.

[0049] As Figure 1 shown, a high-pressure conversion mechanism 33 is provided on the top of the main support plate 11. As Figure 3 shown, the high-pressure conversion mechanism 33 includes a high-pressure conversion grouting tank 331. A grouting tank piston 332 is slidably connected in the high-pressure conversion grouting tank 331. The grouting tank piston 332 divides the interior of the high-pressure conversion grouting tank 331 into a high-pressure grouting chamber 333 and a high-pressure drive chamber 334;

[0050] On the outside of the high-pressure conversion grouting tank 331, a high-pressure grouting input pipe 335 and a high-pressure grouting output pipe 336 that are connected to the high-pressure grouting chamber 333 are fixed. A grouting input control valve 3351 is provided on the high-pressure grouting input pipe 335, and a grouting output control valve 3361 is provided on the high-pressure grouting output pipe 336;

[0051] On the outside of the high-pressure conversion grouting tank 331, a driving balance pipe 337 and a high-pressure driving input pipe 338 that are connected to the high-pressure driving chamber 334 are fixed. A balance pipe control valve 3371 is provided on the driving balance pipe 337, and a high-pressure driving control valve 3381 is provided on the high-pressure driving input pipe 338;

[0052] An air compressor 339 is fixed on the top of the main body support plate 11, and the high-pressure driving input pipe 338 is connected to the high-pressure gas storage tank of the air compressor 339.

[0053] As Figure 3 shown, a surplus slurry discharge pipe 39 that is connected to the high-pressure grouting chamber 333 is fixed at the bottom of the high-pressure conversion grouting tank 331. A surplus slurry discharge control valve 391 is provided on the surplus slurry discharge pipe 39.

[0054] As Figure 4 shown, a vacuum control mechanism 34 is connected to the grouting and forming mold 23. The vacuum control mechanism 34 includes a vacuum control tank 341. A vacuum control connecting pipe 342 that is connected to the inside thereof is fixed on the outside of the vacuum control tank 341. The other end of the vacuum control connecting pipe 342 is connected to the mold grouting discharge pipe 232. A vacuum connection control valve 3421 is provided on the vacuum control connecting pipe 342;

[0055] The top of the vacuum control tank 341 has a vacuum exhaust connecting pipe 343 that is connected to the inside thereof. A vacuum exhaust control valve 3431 is provided on the vacuum exhaust connecting pipe 343;

[0056] A vacuum pump 344 is fixed on the top of the main body support plate 11, and the vacuum exhaust connecting pipe 343 is connected to the input end of the vacuum pump 344.

[0057] As Figure 4 shown, a grouting buffer shell 35 is connected and communicated between the vacuum control connecting pipe 341 and the mold grouting discharge pipe 232. The bottom of the grouting buffer shell 35 has a grouting buffer discharge pipe 351 that is connected to the inside thereof. A buffer discharge control valve 3511 is provided on the grouting buffer discharge pipe 351.

[0058] It should be noted that the mold clamping drive telescopic rod 211, grouting transfer pump, 32, grouting input control valve 3351, grouting output control valve 3361, balance pipe control valve 3371, high-pressure drive control valve 3381, air compressor 339, vacuum connection control valve 3421, vacuum evacuation control valve 3431, vacuum pump 344, buffer discharge control valve 3511, stirring drive motor 382, and surplus slurry discharge control valve 391 used in the embodiments of the present application all adopt existing technologies and are not specifically limited herein.

[0059] In the actual application process of the present utility model, the prepared ceramic slurry is input into the grouting storage tank 31, and the inside of the grouting storage tank 31 is evacuated. The stirring drive motor 382 drives the slurry stirring shaft 38 together with a plurality of stirring blades 381 to continuously stir the ceramic slurry, so that the gas dissolved in the ceramic slurry escapes under the action of pressure difference and stirring.

[0060] The process of high-pressure grouting forming of ceramics is as follows:

[0061] Valve states in the initial state

[0062] Grouting input control valve 3351: Closed

[0063] Grouting output control valve 3361: Closed

[0064] Balance pipe control valve 3371: Closed

[0065] High-pressure drive control valve 3381: Closed

[0066] Surplus slurry discharge control valve 391: Closed

[0067] Vacuum connection control valve 3421: Closed

[0068] Vacuum evacuation control valve 3431: Closed

[0069] Buffer discharge control valve 3511: Closed

[0070] S1. Slurry transportation:

[0071] The ceramic slurry in the grouting storage tank 31 is input into the high-pressure grouting chamber 333 of the high-pressure conversion grouting tank 331 through the high-pressure grouting input pipe 335 by using the grouting transfer pump 32.

[0072] Valve states during step S1

[0073] Grouting input control valve 3351: Open

[0074] Grouting output control valve 3361: Closed

[0075] Balance pipe control valve 3371: Open

[0076] High-pressure drive control valve 3381: Closed

[0077] Surplus slurry discharge control valve 391: Closed

[0078] Vacuum connection control valve 3421: Closed

[0079] Vacuum evacuation control valve 3431: Closed

[0080] Buffer discharge control valve 3511: Closed

[0081] Valve states after step S1 ends

[0082] Grouting input control valve 3351: Closed

[0083] Grouting output control valve 3361: Closed

[0084] Balance pipe control valve 3371: Closed

[0085] High-pressure drive control valve 3381: Closed

[0086] Surplus slurry discharge control valve 391: Closed

[0087] Vacuum connection control valve 3421: Closed

[0088] Vacuum evacuation control valve 3431: Closed

[0089] Buffer discharge control valve 3511: Closed

[0090] S2. Vacuum preparation:

[0091] The vacuum pump 344 evacuates the vacuum control tank 341 through the vacuum evacuation connection pipe 343, and the grouting buffer shell 35 and the inside of the grouting forming die 23 connected to the vacuum control tank 341 are also in a vacuum state;

[0092] Valve states during step S2

[0093] Grouting input control valve 3351: Closed

[0094] Grouting output control valve 3361: Closed

[0095] Balance pipe control valve 3371: Closed

[0096] High-pressure drive control valve 3381: Closed

[0097] Surplus slurry discharge control valve 391: Closed

[0098] Vacuum connection control valve 3421: Open

[0099] Vacuum evacuation control valve 3431: Open

[0100] External discharge control valve of buffer 3511: Closed

[0101] Valve states after step S2 ends

[0102] Grouting input control valve 3351: Closed

[0103] Grouting output control valve 3361: Closed

[0104] Balance pipe control valve 3371: Closed

[0105] High-pressure drive control valve 3381: Closed

[0106] Residual slurry external discharge control valve 391: Closed

[0107] Vacuum connection control valve 3421: Open

[0108] Vacuum evacuation control valve 3431: Closed

[0109] External discharge control valve of buffer 3511: Closed

[0110] S3. High-pressure grouting:

[0111] Inject high-pressure air in the high-pressure gas storage tank of the air compressor 339 into the high-pressure drive chamber 334 through the high-pressure drive input pipe 338. Under the drive of the high-pressure air, the grouting tank piston 332 compresses the high-pressure grouting chamber 333, discharges the ceramic slurry in the high-pressure grouting chamber 333 through the high-pressure grouting output pipe 336, presses the ceramic slurry into the grouting mold 23 through the mold grouting input pipe 231, and discharges the excess ceramic slurry from the mold grouting discharge pipe 232 and temporarily stores it in the grouting buffer shell 35;

[0112] Valve states during step S2

[0113] Grouting input control valve 3351: Closed

[0114] Grouting output control valve 3361: Open

[0115] Balance pipe control valve 3371: Closed

[0116] High-pressure drive control valve 3381: Open

[0117] Residual slurry external discharge control valve 391: Closed

[0118] Vacuum connection control valve 3421: Open

[0119] Vacuum evacuation control valve 3431: Closed

[0120] External discharge control valve of buffer 3511: Closed

[0121] Valve states after the end of step S2

[0122] Grouting input control valve 3351: Closed

[0123] Grouting output control valve 3361: Open

[0124] Balance pipe control valve 3371: Closed

[0125] High-pressure drive control valve 3381: Open

[0126] Residual slurry discharge control valve 391: Closed

[0127] Vacuum connection control valve 3421: Open

[0128] Vacuum evacuation control valve 3431: Closed

[0129] Buffer discharge control valve 3511: Closed

[0130] S3. Demolding:

[0131] After the green body in the grouting forming mold 23 is shaped and cured, the mold forming drive block 22 is driven to move in the mold closing drive receiving groove 211 by the mold closing drive telescopic rod 221. Each mold forming drive block 22 moves away from each other and drives each grouting forming sub-mold body 230 to move away from each other. Finally, the green body in the grouting forming mold 23 can be taken out.

Claims

1. A vacuum high pressure grouting molding equipment for ceramic production, characterized in that: It comprises a grouting support structure (10), a mold forming mechanism (20) and a high-pressure grouting mechanism (30) arranged in the grouting support structure (10); The grouting support structure (10) comprises a main body support plate (11) and a main body support shell (12) fixed on the top of the main body support plate (11); The mold forming mechanism (20) comprises a grouting forming mold (23); The bottom of the grouting mold (23) is provided with a mold grouting input pipe (231) connected to the inside thereof, and the top of the grouting mold (23) is provided with a mold grouting discharge pipe (232) connected to the inside thereof; The high-pressure grouting mechanism (30) comprises a grouting storage tank (31), a grouting delivery pump (32) is provided in communication with the grouting storage tank (31), and the output end of the grouting delivery pump (32) is in communication with the mold grouting input pipe (231).

2. A vacuum high pressure grouting molding equipment for ceramic production according to claim 1, characterized in that: A mold forming support plate (21) is fixed on the top of the main body support plate (11), and a plurality of mold closing drive receiving grooves (211) extending radially thereof are provided on the top of the mold closing drive receiving groove (211), and a mold forming drive block (22) is slidably connected in the mold closing drive receiving groove (211); The grouting molding mold (23) is composed of a plurality of grouting molding split mold bodies (230) spliced ​​together, and the plurality of grouting molding split mold bodies (230) are fixedly connected to the respective mold forming drive blocks (22) in a one-to-one correspondence, and a mold closing drive telescopic rod (221) for driving the mold forming drive block (22) to move is provided in the mold closing drive receiving groove (211).

3. The vacuum high pressure grouting molding equipment for ceramic production according to claim 1, characterized in that: A high-pressure conversion mechanism (33) is provided on the top of the main support plate (11), and the high-pressure conversion mechanism (33) comprises a high-pressure conversion grouting tank (331), a grouting tank piston (332) is slidably connected inside the high-pressure conversion grouting tank (331), and the grouting tank piston (332) divides the high-pressure conversion grouting tank (331) into a high-pressure grouting chamber (333) and a high-pressure driving chamber (334); A high-pressure grouting input pipe (335) and a high-pressure grouting output pipe (336) connected to the high-pressure grouting chamber (333) are fixed on the outside of the high-pressure conversion grouting tank (331); the high-pressure grouting input pipe (335) is provided with a grouting input control valve (3351), and the high-pressure grouting output pipe (336) is provided with a grouting output control valve (3361); A driving balance pipe (337) and a high-pressure driving input pipe (338) connected to the high-pressure driving chamber (334) are fixed on the outside of the high-pressure conversion grouting tank (331); a balance pipe control valve (3371) is provided on the driving balance pipe (337); and a high-pressure driving input pipe (338) is provided on the high-pressure driving control valve (3381); An air compressor (339) is fixed on the top of the main support plate (11), and the high-pressure drive input pipe (338) is connected to the high-pressure air storage tank of the air compressor (339).

4. A vacuum high pressure grouting molding equipment for ceramic production according to claim 3, characterized in that: A residual slurry discharge pipe (39) communicating with the high-pressure grouting chamber (333) is fixed at the bottom of the high-pressure conversion grouting tank (331), and a residual slurry discharge control valve (391) is provided on the residual slurry discharge pipe (39).

5. The vacuum high pressure grouting molding equipment for ceramic production according to claim 1, characterized in that: A vacuum control mechanism (34) is provided in connection with the grouting forming mold (23), the vacuum control mechanism (34) comprising a vacuum control tank (341), a vacuum control connecting pipe (342) connected to the inside of the vacuum control tank (341) is fixed on the outside of the vacuum control tank (341), the other end of the vacuum control connecting pipe (342) is connected to the mold grouting discharge pipe (232), and a vacuum connecting control valve (3421) is provided on the vacuum control connecting pipe (342); The top of the vacuum control tank (341) is provided with a vacuum exhaust communication pipe (343) connected to the interior thereof, and the vacuum exhaust communication pipe (343) is provided with a vacuum exhaust control valve (3431); A vacuum pump (344) is fixed on the top of the main body support plate (11), and the vacuum exhaust connecting pipe (343) is connected to the input end of the vacuum pump (344).

6. The vacuum high pressure grouting molding equipment for ceramic production according to claim 5, characterized in that: A grouting buffer shell (35) is provided between the vacuum control connecting pipe (342) and the mold grouting discharge pipe (232), and the bottom of the grouting buffer shell (35) is provided with a grouting buffer external discharge pipe (351) connected with the interior thereof, and the grouting buffer external discharge pipe (351) is provided with a cache external discharge control valve (3511).

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