CN107972162B - Ceramic tile forming die with stable structure - Google Patents

Abstract

The ceramic tile forming mold with stable structure includes bottom board, mold core, upper colloid, lower colloid, support board and air tap; the bottom plate is fixedly connected with the mold core, and an air inlet and outlet channel is arranged at the joint of the bottom plate and the mold core; the mold core is provided with a plurality of pore channels and a plurality of mounting holes, and each pore channel is communicated with each mounting hole; the mounting hole is a counter bore and is arranged on the upper surface of the mold core; the supporting plate is arranged above the mold core and is fixedly connected with the mold core; the lower colloid wraps the supporting plate, and a plurality of oil layers are arranged at the joint of the lower colloid and the supporting plate; the surfaces of the lower colloid except the upper surface are connected with the mold core; the upper colloid is arranged on the upper surface of the lower colloid and the upper surface of the mold core. The lower colloid is not only stuck on the supporting plate, but also goes deep into the through hole, so that the connection between the supporting plate and the colloid is firmer, the colloid is not easy to damage or loose, and the die structure is stable.

Description

A ceramic tile forming mold with stable structure

Technical Field

The invention relates to the technical field of ceramic moulds, and in particular to a ceramic brick forming mould with a stable structure.

Background technique

Ceramic tiles are mostly formed by pressing powder with low water content into molds. However, since the powder contains a lot of air, it is not easy to discharge and is very easy to be stratified. Currently, a certain number of exhaust ports are opened on the exhaust core to allow the powder to be discharged through the exhaust ports, while also reducing the pressing speed and increasing the corresponding exhaust time.

Isostatic pressing molds are commonly used molds for pressing ceramic tiles. They use the characteristics of oil to evenly transmit pressure in all directions to achieve uniform pressure on ceramic products and uniform density. However, when the pressure of the injected oil is high or the pressure is high during the brick making process, the current isostatic pressing molds are prone to damage or loosening of the rubber layer after repeated use. This makes the mold structure unstable, prone to oil leakage, and even causes bulging of the rubber surface, resulting in poor brick pressing effect.

Summary of the invention

The object of the present invention is to provide a ceramic forming die with a stable colloid structure and a stable oil layer in view of the deficiencies in the prior art.

To achieve this purpose, the present invention adopts the following technical solutions: a ceramic tile forming mold with a stable structure, including a bottom plate, a mold core, an upper colloid, a lower colloid, a support plate and an air nozzle;

The bottom plate is fixedly connected to the mold core, and an air inlet and outlet channel is provided at the connection between the bottom plate and the mold core;

The mold core is provided with a plurality of channels and a plurality of mounting holes, each channel and each mounting hole are mutually connected; the mounting holes are countersunk holes, and are provided on the upper surface of the mold core;

The support plate is arranged above the mold core and is fixedly connected to the mold core; the lower colloid wraps the support plate, and a plurality of oil layers are arranged at the connection between the lower colloid and the support plate; the remaining surfaces of the lower colloid except the upper surface are connected to the mold core;

The upper colloid is arranged on the upper surface of the lower colloid and the upper surface of the mold core;

The mold core is also provided with an oil inlet and outlet channel, and the oil inlet and outlet channel is interconnected with the oil layer;

The air nozzle passes through the support plate and is installed in the installation hole, and an air intake and exhaust channel is provided in the air nozzle;

The support plate is provided with a plurality of through holes, and the lower colloid adheres to the upper surface of the mold core after passing through the through holes.

Preferably, the through hole includes two types: a needle sleeve hole and a long glue hole;

The needle sleeve hole includes a sleeve hole portion and a solid glue wing hole portion; the lower colloid passes through the solid glue wing hole portion and adheres to the upper surface of the mold core;

The solid glue wing hole parts are arranged on both sides of the sleeve hole part and are communicated with the sleeve hole part;

The gas nozzle is arranged in the sleeve hole portion;

The needle sleeve holes are arranged on the mold core in multiple rows and columns with equal spacing;

The long glue-fixing hole is also a through hole; the long glue-fixing hole is arranged between two adjacent needle sleeve hole parts in each row and each column.

Preferably, the hardness of the upper colloid is greater than the hardness of the lower colloid;

The support plate is fixedly connected to the mold core by a plurality of positioning screws and/or a plurality of magnet blocks;

The positioning screw passes through the support plate and is locked to the mold core; the top of the magnet block sucks the bottom of the support plate, and the bottom of the magnet block sucks the top of the mold core.

Preferably, the upper surface of the gas nozzle is flush with the upper surface of the upper colloid;

The diameter of the mounting hole is greater than the diameter of the channel.

Preferably, the gas nozzle comprises an air outlet end and a connecting end, and the bottom surface of the air outlet end is connected to the top surface of the connecting end;

The cross-sectional area of the gas outlet end is smaller than the cross-sectional area of the connection end;

The top surface of the gas outlet end and the top surface of the upper colloid are flush with each other, and the upper colloid is arranged between the top surface of the gas outlet end and the top surface of the connection end;

The air intake and exhaust channel includes a microchannel and a wide channel; the microchannel is arranged in the air outlet end, the wide channel is arranged in the connecting end, the microchannel and the wide channel are connected to each other, and the wide channel is connected to the hole.

Preferably, the air outlet end and the connecting end are cylindrical bodies with the same outer diameter up and down;

The outer diameter of the gas outlet end is smaller than the outer diameter of the connecting end;

The wide channel is a cylindrical cavity with the same upper and lower diameters, and the microchannel is also a cylindrical cavity with the same upper and lower diameters; the diameter range of the microchannel is 1-2 mm, and the diameter range of the wide channel is 10-20 mm;

The microchannel and the wide channel are connected via a truncated cone-shaped through hole transition.

Preferably, the air outlet end and the connecting end are both square cylinders;

The length of the cross section of the gas outlet end is smaller than the length of the cross section of the connecting end; the width of the cross section of the gas outlet end is smaller than the width of the cross section of the connecting end;

The wide channel is a square column cavity with the same upper and lower cross-sections; the microchannel is also a square column cavity with the same upper and lower cross-sections, and the cross-sectional area of the microchannel is smaller than the cross-sectional area of the wide channel;

The microchannel and the wide channel are connected via a truncated cone-shaped through-hole transition.

Preferably, an air column is also provided in the intake and exhaust channel, and the air column is a cylinder or a square column. The lower end of the air column is connected to the lower end of the intake and exhaust channel, and the top surface of the air column is flush with the top surface of the air outlet end. The air column does not contact the inner wall of the intake and exhaust channel, and an annular gas circulation channel is formed between the air column and the intake and exhaust channel.

Preferably, the air inlet and outlet passages are square grooves opened on the bottom surface of the mold core and/or the top surface of the bottom plate, and the mold core and the bottom plate are closely attached to each other to form the air inlet and outlet passages;

The hole is communicated with the air inlet and outlet channels.

Preferably, the mold core is fixed to the bottom plate by bolts; the outer frames of the mold core and the bottom plate are provided with sealing rings; the outer edges of the bolts are also covered with sealing rings;

An upper chamfer is provided at the connection between the outer contour of the gas outlet end and the connecting end for transition;

The lowermost end of the outer contour of the connecting end is provided with a lower chamfer.

Beneficial effects of the present invention: The ceramic tile forming mold is also an isostatic pressing mold, which has various excellent characteristics of an isostatic pressing mold, so that the pressing effect of the ceramic powder is good. The support plate provided can strengthen the rigidity of the lower colloid and ensure the stability of the oil layer. During pressing, the pressure of the oil directly acts on the lower colloid, rather than directly on the upper colloid, that is, it passes through the transition of the lower colloid and then is transmitted to the upper colloid, so the pressure of the oil layer acts on the lower colloid, avoiding the upper and lower surfaces of the upper colloid from being impacted by high pressure at the same time, so the upper colloid is not easy to be damaged and the structure is stable. Moreover, the lower colloid is not only adhered to the upper surface of the support plate, but can also penetrate into the through hole, so that the connection between the support plate and the lower colloid is more firm. During pressing, even if the lower colloid is impacted by the oil layer, it is not easy to be damaged or loosened, and the structure of the ceramic forming mold can also be stable.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below in conjunction with the accompanying drawings and embodiments.

FIG1 is a schematic diagram of a half-section structure of one embodiment of the present invention;

FIG2 is a schematic diagram of the support plate structure of one embodiment of the present invention;

FIG3 is an enlarged schematic diagram of the structure in the direction A of FIG2 ;

FIG4 is a schematic diagram of a mold core structure of one embodiment of the present invention;

Fig. 5 is a partial cross-sectional schematic diagram along the line B-B of Fig. 4;

Fig. 6 is a partial cross-sectional schematic diagram along the line C-C of Fig. 4;

FIG7 is a schematic diagram of the bottom plate structure of one embodiment of the present invention;

Fig. 8 is a partial cross-sectional schematic diagram along the line D-D of Fig. 7;

FIG9 is a schematic diagram of the three-dimensional structure of a gas nozzle according to one embodiment of the present invention;

FIG10 is a schematic diagram of the three-dimensional structure of a gas nozzle according to one embodiment of the present invention;

FIG11 is a schematic diagram of a full cross-sectional structure of a gas nozzle according to one embodiment of the present invention;

FIG. 12 is a schematic diagram of the full cross-section structure of an air nozzle according to one embodiment of the present invention.

Wherein: bottom plate 1, mold core 2, channel 21, mounting hole 22, oil inlet and outlet channel 23, upper colloid 31, lower colloid 32, positioning screw 33, magnet 34, support plate 4, needle sleeve hole 41, solid glue long hole 42, sleeve hole part 411, solid glue wing hole part 412, air nozzle 5, suction and exhaust channel 51, air outlet end 52, connecting end 53, air column 54, upper chamfer 55, lower chamfer 56, microchannel 511, wide channel 512, inlet and outlet channel 6, square groove 61, oil layer 7, bolt 8, sealing ring 9.

Detailed ways

The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

A ceramic tile forming mold with a stable structure, comprising a bottom plate 1, a mold core 2, an upper colloid 31, a lower colloid 32, a support plate 4 and an air nozzle 5;

The bottom plate 1 is fixedly connected to the mold core 2, and an air inlet and outlet channel 6 is provided at the connection between the bottom plate 1 and the mold core 2;

The mold core 2 is provided with a plurality of channels 21 and a plurality of mounting holes 22, each channel 21 and each mounting hole 22 are mutually connected; the mounting hole 22 is a countersunk hole, and is provided on the upper surface of the mold core 2;

The support plate 4 is arranged above the mold core 2 and is fixedly connected to the mold core 2; the lower colloid 32 wraps the support plate 4, and a plurality of oil layers 7 are arranged at the connection between the lower colloid 32 and the support plate 4; the surfaces of the lower colloid 32 except the upper surface are all connected to the mold core 2;

The upper colloid 31 is arranged on the upper surface of the lower colloid 32 and the upper surface of the mold core 2;

The mold core 2 is also provided with an oil inlet and outlet channel 23, and the oil inlet and outlet channel 23 and the oil layer 7 are interconnected;

The air nozzle 5 passes through the support plate 4 and is installed in the installation hole 22. The air nozzle 5 is provided with an air intake and exhaust channel 51;

The support plate 4 is provided with a plurality of through holes, and the lower colloid 32 adheres to the upper surface of the mold core 2 after passing through the through holes.

During processing, the upper colloid 31 is pressed on the ceramic powder, and the gas in the powder is discharged through the suction and exhaust channel 51, the channel 21 and the inlet and outlet channels 6 of the air nozzle 5, so as to facilitate the pressing of the powder. After the ceramic powder is pressed, gas is blown into the inlet and outlet channels 6 through an external blowing device, and blown out from the suction and exhaust channel 51, so that the powder adsorbed in the suction and exhaust channel 51 or near it can be blown out, which is convenient for the next pressing.

The ceramic tile forming mold is also an isostatic pressing mold, which has various excellent properties of isostatic pressing molds, so that the pressing effect of ceramic powder is good. The support plate 4 is set to strengthen the rigidity of the lower colloid 32 and ensure the stability of the oil layer 7. During pressing, the pressure of the oil directly acts on the lower colloid 32, rather than directly on the upper colloid 31, that is, it passes through the transition of the lower colloid 32 and then transmits to the upper colloid 31, so the pressure of the oil layer 7 acts on the lower colloid 32, avoiding the upper and lower surfaces of the upper colloid 6 from being impacted by high pressure at the same time, so the upper colloid 31 is not easy to be damaged and the structure is stable.

Moreover, the lower colloid 32 is not only adhered to the upper surface of the support plate 4, but can also penetrate into the through hole, so that the connection between the support plate 4 and the lower colloid 32 is more secure. During pressing, even if the lower colloid 32 is impacted by the oil layer 7, it is not easy to be damaged or loosened, and the structure of the ceramic molding mold can be stabilized.

The lower colloid 32 wraps around the support plate 4, which means that the five surfaces of the support plate 4 are covered by the lower colloid 32. During assembly, the support plate 4 can be first locked above the mold core 2, and anti-sticking oil is brushed on the surface of the support plate 4 at the position where the oil layer needs to be set, and then the molten lower colloid 32 is injected. After cooling, it can be ensured that the support plate 4 can be fully covered, and then the oil layer is formed.

Here, the connection between the lower colloid 32 and the support plate 4 is provided with multiple oil layers 7, which means that the oil layers are provided on the upper surface and/or the lower surface of the support plate 4 to facilitate the pressing of different powders.

Furthermore, the through hole includes two types: a needle sleeve hole 41 and a long glue hole 42;

The needle sleeve hole 41 includes a sleeve hole portion 411 and a solid glue wing hole portion 412; the lower glue 32 passes through the solid glue wing hole portion 412 and adheres to the upper surface of the mold core 2;

The glue-fixing wing hole portion 412 is disposed on both sides of the sleeve hole portion 411 and is communicated with the sleeve hole portion 411;

The gas nozzle 5 is disposed in the sleeve hole portion 411;

The needle sleeve holes 41 are arranged on the mold core 2 in multiple rows and columns with equal spacing;

The long glue-fixing hole 42 is also a through hole; the long glue-fixing hole 42 is arranged between two adjacent needle sleeve holes 41 in each row and each column.

From the schematic diagram of the mold core 2, the solid glue wing hole portion 412 is equivalent to the two wings of the sleeve hole portion 411, because the sleeve hole portion 411 is equipped with a gas nozzle 5. If there is no solid glue wing hole portion 412, the gas nozzle 5 is only sleeved in the sleeve hole portion 411 of the mold core 2 plate, and the connection is not very strong. The oil layer 7 is easily impacted and oil enters the upper colloid 31. The lower colloid 32 can be arranged in the solid glue wing hole portion 412, which is equivalent to strengthening the connection between the support plate 4 and the lower colloid 32, and the oil is difficult to pass through the support plate 4.

The long holes 42 for solid glue further strengthen the connection between the support plate 4 and the upper colloid 31, so that the lower colloid 32 is less likely to be separated from the support. In addition to the support of the solid glue wing hole 412 at the connection between the air nozzle 5 and the support plate 4, the long holes 42 for solid glue also strengthen the support, so that the surrounding areas of the sleeve hole 411 are well supported, and the oil is less likely to leak.

Furthermore, the hardness of the upper colloid 31 is greater than the hardness of the lower colloid 32;

The support plate 4 is fixedly connected to the mold core 2 by a plurality of positioning screws 33 and/or a plurality of magnet blocks 34;

The positioning screw 33 passes through the support plate 4 and is locked to the mold core 2 ; the top of the magnet block 34 is attracted to the bottom of the support plate 4 , and the bottom of the magnet block 34 is attracted to the top of the mold core 2 .

Because the upper colloid 31 directly acts on the powder, its hardness must be large enough, otherwise, when the powder is pressed, it will easily cause the upper colloid 31 to deform and cause the surface of the powder to be uneven. The lower colloid 32 contains an oil layer 7, which will inevitably fluctuate during pressing. In order to balance this fluctuation, the hardness of the lower colloid 32 is set lower than that of the upper colloid 31.

In addition, when the mold is pressing the powder, the pressing force is very large. In order to prevent the oil layer 7 from being stable, the movement of the support plate 4 must be limited. The positioning screw 33 and the magnet block 34 can lock the support plate 4. Although both of the above can lock the support plate 4, the locking of the positioning screw 33 requires the destruction of the support plate 4 (such as drilling). If the seal is not done well, it is easy to cause oil leakage. Therefore, the support plate 4 does not need to be destroyed when the magnet block 34 is used. However, the locking effect of the magnet block 34 is definitely not as good as the positioning screw 33. Therefore, the locking method can be selected according to the actual situation. For example, for a large mold, the two can be considered to be used in combination, or the positioning screw 33 can be used more. For a small mold, the magnet block 34 can be considered. Of course, the above is just an example and does not limit the locking method of the support plate 4.

Furthermore, the upper surface of the gas nozzle 5 and the upper surface of the upper colloid 31 are flush with each other;

The diameter of the mounting hole 22 is greater than the diameter of the channel 21 .

Since the upper surface of the air nozzle 5 and the upper surface of the upper colloid 31 are flush with each other, when pressing the ceramic powder, the air nozzle 5 and the upper colloid 31 are pressed on the powder at the same time. Even if the ceramic forming mold continues to press down at this time, the air nozzle 5 and the upper colloid 31 continue to press down synchronously, so the air nozzle 5 and the upper colloid 31 will not move relative to each other, and the mold is not easily damaged. In addition, since the upper surface of the air nozzle 5 and the upper surface of the upper colloid 31 are flush with each other, their connection will not accommodate powder, so that the surface of the pressed ceramic powder is smooth. Therefore, when using the mold to press the powder, the mold is not easy to be damaged, which can extend the life of the mold and reduce the production cost, and the pressed powder has a good surface flatness.

When pressing ceramic powder, because the air nozzle 5 moves with the mold core 2, the pressing force is very large. In order to ensure the strength of the air nozzle 5 itself, the diameter of the air nozzle 5 should be as large as possible, and the hole 21 is used for ventilation. The size of the air path diameter does not have a great effect on the ventilation effect, so the diameter of the mounting hole 22 should be larger than the diameter of the hole 21. In addition, the diameter of the air nozzle 5 is larger than the diameter of the hole 21, so that it will not sink into the hole 21, so that the air nozzle 5 is stably in the mounting hole 22.

Furthermore, the air nozzle 5 includes an air outlet end 52 and a connecting end 53, and the bottom surface of the air outlet end 52 is connected to the top surface of the connecting end 53;

The cross-sectional area of the gas outlet end 52 is smaller than the cross-sectional area of the connecting end 53;

The top surface of the gas outlet end 52 and the top surface of the upper colloid 31 are flush with each other, and the upper colloid 31 is arranged between the top surface of the gas outlet end 52 and the top surface of the connecting end 53;

The air intake and exhaust channel 51 includes a microchannel 511 and a wide channel 512; the microchannel 511 is arranged in the air outlet end 52, and the wide channel 512 is arranged in the connecting end 53. The microchannel 511 and the wide channel 512 are connected to each other, and the wide channel 512 is connected to the duct 21.

Because the upper colloid 31 is a PU glue that prevents powder from sticking, and when metal is pressed down on ceramic powder, it will generally stick to the powder. Therefore, in order to ensure a good effect of the mold pressing the powder, the contact area between the metal air nozzle 5 and the powder should be minimized. Therefore, the top surface area of the air outlet end 52 of the air nozzle 5 should be as small as possible to ensure that as little powder sticks as possible. In addition, the connection area between the upper colloid 31 and the air nozzle 5 is also larger, making the connection between the air nozzle 5 and the upper colloid 31 more secure.

Furthermore, the gas outlet end 52 and the connecting end 53 are cylindrical bodies with the same outer diameter from top to bottom;

The outer diameter of the gas outlet end 52 is smaller than the outer diameter of the connecting end 53;

The wide channel 512 is a cylindrical cavity with the same diameter at the top and bottom, and the microchannel 511 is also a cylindrical cavity with the same diameter at the top and bottom; the diameter range of the microchannel 511 is 1-2 mm, and the diameter range of the wide channel 512 is 10-20 mm;

The microchannel 511 and the wide channel 512 are connected via a truncated cone-shaped through hole transition.

The diameter of the powder is on the order of 0.1 mm, and the diameter of the powder agglomerates is greater than 10 mm. During pressing, the air in the ceramic powder can be discharged into the wide channel 512 through the microchannel 511, and then discharged. The powder will agglomerate after being pressed, so it is not easy for the powder agglomerate to enter the microchannel 511 at this time, so it is equivalent to only being able to exhaust but not discharge the powder. After pressing, air is blown into the inlet and outlet air channel 6, and the gas easily enters the wide channel 512, and then blown out through the microchannel 511, blowing out the powder near the top surface of the microchannel 511 and the air nozzle 5, because the diameter of the microchannel 511 is smaller than the diameter of the wide channel 512, so that the gas flow rate and gas pressure discharged from the microchannel 511 will increase, which can accelerate the blowing of the powder. The above-mentioned truncated cone-shaped through hole serves as a gas transition area, which can slow down the impact of the gas in the wide channel 512 on the air nozzle 5, and can also speed up the speed of gas outflow.

Furthermore, the air outlet end 52 and the connection end 53 are both square cylinders;

The length of the cross section of the air outlet end 52 is smaller than the length of the cross section of the connecting end 53; the width of the cross section of the air outlet end 52 is smaller than the width of the cross section of the connecting end 53;

The wide channel 512 is a square column cavity with the same upper and lower cross-sections; the microchannel 511 is also a square column cavity with the same upper and lower cross-sections, and the cross-sectional area of the microchannel 511 is smaller than the cross-sectional area of the wide channel 512;

The microchannel 511 is connected to the wide channel via a truncated cone-shaped through-hole transition.

The air in the ceramic powder can be discharged into the wide channel 512 through the microchannel 511, and then discharged. After the powder is pressed, it will form a mass, so it is not easy for the powder mass to enter the microchannel 511 at this time, so it is equivalent to only being able to exhaust but not discharge the powder. After pressing, air is blown into the inlet and outlet air channels 6, and the gas easily enters the wide channel 512, and then blown out through the microchannel 511, blowing out the powder near the top surface of the microchannel 511 and the air nozzle 5, because the cross-sectional area of the microchannel 511 is smaller than the cross-sectional area of the wide channel 512, thereby increasing the gas flow rate and gas pressure discharged from the microchannel 511, which can accelerate the blowing of the powder. The above-mentioned truncated cone-shaped through hole serves as a gas transition area, which can reduce the impact of the gas in the wide channel 512 on the air nozzle 5, and can also accelerate the speed of gas outflow.

Furthermore, an air column 54 is also provided in the intake and exhaust channel 51. The air column 54 is a cylinder or a square column. The lower end of the air column 54 is connected to the lower end of the intake and exhaust channel 51. The top surface of the air column 54 is flush with the top surface of the outlet end 52. The air column 54 does not contact the inner wall of the intake and exhaust channel 51, and an annular gas circulation channel is formed between the air column 54 and the intake and exhaust channel 51.

The air column 54 divides the air outlet of the air intake and exhaust channel 51 into an annular air outlet. The area of the air outlet directly affects the air outlet effect, and the diameter of the air outlet directly affects whether the powder can enter and exit. The air outlet of the air nozzle 5 is annular, and the width of the annular diameter is small, so that the discharge of the powder can be blocked and only the air can be exhausted.

Furthermore, the air inlet and outlet passage 6 is a square groove 61 opened on the bottom surface of the mold core 2 and/or the top surface of the bottom plate 1, and the mold core 2 and the bottom plate 1 are closely attached to each other to form the air inlet and outlet passage 6;

The hole 21 is communicated with the air inlet and outlet channels 6 .

Because it is very difficult to directly process a long hole in the bottom plate 1, the air inlet and outlet are divided into two parts for processing here. Only the square groove 61 needs to be processed on the bottom surface of the mold core 2 and the top surface of the bottom plate 1, so the processing difficulty can be greatly reduced and it is easy to process.

Furthermore, the mold core 2 is fixed to the bottom plate 1 by bolts 8; the outer frames of the mold core 2 and the bottom plate 1 are provided with sealing rings 9; the outer edges of the bolts 8 are also covered with sealing rings 9;

An upper chamfer 55 is provided at the connection between the outer contours of the gas outlet end 52 and the connection end 53 for transition;

A lower chamfer 56 is provided at the lowermost end of the outer contour of the connecting end 53 .

The function of the upper chamfer 55 is to ensure that the thickness of the wall of the air nozzle 5 does not change significantly, thereby avoiding the structural strength of the air nozzle 5. At the same time, the contact area between the rubber surface and the upper chamfer 55 is also larger, so that the rubber surface can be stably adhered to the air nozzle 5, thereby avoiding damage to the rubber surface.

The purpose of the sealing ring 9 is to prevent air leakage or powder intrusion into the ceramic forming mold.

Because the air nozzle 5 and the mounting hole 22 are in interference connection, iron filings will inevitably fall during installation. The lower chamfer 56 is provided for one purpose to prevent burrs, and another purpose is to prevent large friction with the mounting hole 22 during installation, and the mounting hole 22 will not be scratched, thereby facilitating installation.

The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims (10)

1. The ceramic tile forming mold with stable structure includes bottom board, mold core, upper colloid, lower colloid, support board and air tap;

the method is characterized in that: the bottom plate is fixedly connected with the mold core, and an air inlet and outlet channel is arranged at the joint of the bottom plate and the mold core;

The mold core is provided with a plurality of pore channels and a plurality of mounting holes, and each pore channel is communicated with each mounting hole; the mounting hole is a counter bore and is arranged on the upper surface of the mold core;

the supporting plate is arranged above the mold core and is fixedly connected with the mold core; the lower colloid wraps the supporting plate, and a plurality of oil layers are arranged at the joint of the lower colloid and the supporting plate; the surfaces of the lower colloid except the upper surface are connected with the mold core;

The upper colloid is arranged on the upper surface of the lower colloid and the upper surface of the mold core;

an oil inlet and outlet channel is also arranged in the mold core, and the oil inlet and outlet channel is communicated with the oil layer;

The air tap passes through the supporting plate and is arranged in the mounting hole, and an air suction and exhaust channel is arranged in the air tap;

The support plate is provided with a plurality of through holes, and the lower colloid is adhered to the upper surface of the mold core after passing through the through holes.

2. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the through holes comprise needle sleeve holes and glue fixing long holes;

the needle sleeve hole comprises a sleeve hole part and a rubber fixing fin hole part; the lower colloid is adhered to the upper surface of the mold core after passing through the hole parts of the fixed colloid wings;

the fixed rubber wing hole parts are arranged on two sides of the trepanning part and are communicated with the trepanning part;

the air tap is arranged in the trepanning part;

The needle sleeve hole parts are distributed on the mold core in a mode of being arranged in a plurality of rows and columns at equal intervals;

The glue fixing long hole is also a through hole; the glue fixing long holes are arranged between two adjacent needle sleeve hole parts in each row and each column.

3. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the hardness of the upper colloid is greater than that of the lower colloid;

The supporting plate is fixedly connected with the mold core through a plurality of positioning screws and/or a plurality of magnet blocks;

The positioning screw penetrates through the supporting plate and then is locked to the mold core; the top of the magnet block attracts the bottom of the supporting plate, and the bottom of the magnet block attracts the top of the mold core.

4. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the upper surface of the air tap is level with the upper surface of the upper colloid;

the diameter of the mounting hole is larger than that of the pore canal.

5. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the air tap comprises an air outlet end and a connecting end, and the bottom surface of the air outlet end is connected with the top surface of the connecting end;

The cross-sectional area of the air outlet end is smaller than that of the connecting end;

The top surface of the air outlet end and the top surface of the upper colloid are mutually flush, and the upper colloid is arranged between the top surface of the air outlet end and the top surface of the connecting end;

The air suction and exhaust channel comprises a micro channel and a wide channel; the micro-channel is arranged in the air outlet end, the wide channel is arranged in the connecting end, the micro-channel and the wide channel are mutually communicated, and the wide channel is communicated with the pore canal.

6. The ceramic tile forming mold with stable structure according to claim 5, wherein: the air outlet end and the connecting end are cylinders with the same outer diameter up and down;

the outer diameter of the air outlet end is smaller than that of the connecting end;

the wide channel is a cylindrical cavity with the same upper and lower diameters, and the micro channel is also a cylindrical cavity with the same upper and lower diameters; the diameter range of the micro-channel is 1-2mm, and the diameter range of the wide channel is 10-20mm;

The micro-channels and the wide channels are connected through the transition of the round table-shaped through holes.

7. The ceramic tile forming mold with stable structure according to claim 5, wherein: the air outlet end and the connecting end are square columns;

the length of the section of the air outlet end is smaller than that of the section of the connecting end; the width of the cross section of the air outlet end is smaller than that of the cross section of the connecting end;

The wide channel is a square column cavity with the same upper and lower sections; the micro-channel is a square column cavity with the same upper and lower sections, and the section area of the micro-channel is smaller than that of the wide channel;

The micro-channels and the wide channels are connected through the transition of the round-table-shaped through holes.

8. A structurally stable ceramic tile forming die according to claim 6 or 7, wherein: the air suction and exhaust channel is internally provided with an air column which is a cylinder or a square column, the lower end of the air column is connected with the lower end of the air suction and exhaust channel, the top surface of the air column is flush with the top surface of the air outlet end, the air column is not contacted with the inner wall of the air suction and exhaust channel, and an annular air circulation channel is formed between the air column and the air suction and exhaust channel.

9. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the air inlet and outlet channel is a square groove formed in the bottom surface of the mold core and/or the top surface of the bottom plate, and the mold core and the bottom plate are mutually stuck to form the air inlet and outlet channel;

the pore canal is communicated with the air inlet and outlet channels.

10. The structurally stable ceramic tile forming die set forth in claim 1, wherein: the mold core is fixed with the bottom plate by bolts; the mold core and the outer frame of the bottom plate are provided with sealing rings; the outer edge of the bolt is also sleeved with a sealing ring;

an upper chamfer is arranged at the joint of the air outlet end and the outer contour of the connecting end and used for transition;

the lowest end of the outer contour of the connecting end is provided with a lower chamfer.