Production method for continuous compression molding of flexible self-exhaust frame ceramic by ceramic press

Abstract

The invention discloses a continuous pressing forming flexible self-exhaust frame of a ceramic press, which is applied to a super-large-scale ceramic thick blank forming process and comprises a forming flexible self-exhaust frame, a forming press structure, a forming blank butt joint mechanism, a flexible self-exhaust frame dust cleaning structure and a blank distribution structure, particularly, the forming boss and the self-exhaust frame are provided with exhaust channels in various forms, the effect of strengthening and compacting powder around the blank in the pressing forming process is achieved, meanwhile, the exhaust filter screen prevents normal powder particles from passing but allows gas to pass, the gas is exhausted through the exhaust channels composed of the forming soft rubber strip and the exhaust structure, and the forming effect is good. Therefore, gas on the upper surface and the periphery of the blank is fully exhausted, the compactness of the blank is crucial, the compactness of powder on the periphery of the green brick is guaranteed, the compression molding quality is greatly improved, and finally, the demolding efficiency and stability of the large-plate ceramic tile blank are greatly improved through flexible demolding of the molding flexible self-exhaust frame.

Description

Technical Field

[0001] The present invention relates to the technical field of building ceramics, and in particular to a pressing and exhaust structure of a ceramic (especially slabs, tiles, etc.) press. Background Art

[0002] At present, the traditional molding method of ceramic panels mainly adopts the mature traditional lower mold frame brick pressing mold horizontal pressing molding method. The material cart is connected to the back of the press, and the feeding system arranges the ceramic powder in the grille of the material cart, and then pushes it forward. The pressed bricks are pushed onto the conveyor line. While pushing out the pressed bricks, the powder in the grille is sent to the press mold, and the powder in the grille is filled into the mold cavity. Then the feeding grille retreats to prepare for the next pressing, thus completing the process of pushing bricks and distributing materials. The advantages of this ceramic forming method are: the powder is directly filled into the mold cavity, the blank is flat all around, and the thickness can be accurately controlled by controlling the depth of the mold cavity. The disadvantages are: when pressing large-sized tiles, the length of the blank in the pushing direction is limited. If it is too long, the blank cannot be pushed out smoothly; because the column spacing in the design of the ceramic press is an important parameter affecting its frame strength and rigidity, the larger the column spacing, the greater the design difficulty of the press. In the case of large column spacing, in order to ensure its strength and rigidity, the press must increase the height of the upper beam and the base, which increases the weight of the press and the cost of the press. Therefore, when designing a large-sized press, priority will be given to using a small column spacing, increasing the front and rear distance of the press, changing the horizontal pressing to vertical pressing, and being unable to use grid cloth and push bricks. Therefore, this cloth method is suitable for pressing large-sized ceramic panels of 2 to 3 meters, but not suitable for pressing super-large ceramic panels of more than 3 meters; Another type, such as System's large-tonnage press, uses a double-belt flat-pressing molding method. Figure 1-2As shown, flat pressing is performed between two pressing belts, specifically, there is a moving pressing belt at the top and the bottom, the powder is clamped (fixed) by the upper pressing belt 1' and the lower pressing belt 2', the upper pressing belt is adhered with a rubber strip 3', and is designed to be conical. It is used as an edge seal during pressing to prevent the powder from spraying and leaking around, and the lower pressing belt is used to transport the powder and the brick blank. The advantages of this pressing and forming method are that the upper contact panel is used for pressing, and the lower pressing belt is used for conveying the powder and the brick blank, which reduces weight and costs, and has stable production, dense blanks and flexible production. Production and other advantages; however, in the existing process, on the one hand: the rubber strip of the upper pressing belt is used as an edge banding strip to only prevent the powder on both sides from leaking out, and does not play a role in compacting the powder around the green body and compensating for the density, and cannot meet the process requirements of thick body forming. During the pressing process, gaps are likely to appear around the rubber strip 1', and the molded bricks are also affected by uneven force, which affects the density of the powder around the bricks, especially the density of the edge powder, resulting in the need to cut off 10% of the edge powder with insufficient density, resulting in serious waste of powder. On the other hand: if the upper surface of the ceramic powder is used as the ceramic appearance surface, the rubber strip of the upper pressing belt used as an edge banding will hinder the exhaust of the ceramic powder on the upper surface, thereby affecting the density and smoothness of the ceramic upper surface. Summary of the invention

[0003] It is therefore an object of the present invention to provide a structure capable of obviating the disadvantages of currently available devices.

[0004] First of all, the present invention sets a forming flexible self-exhaust frame on a belt that forms a loop transportation, and utilizes the flexible demolding of the belt and the forming flexible self-exhaust frame to achieve continuous pressing and forming. Combined with "A Prestressed and Prestrained Load-bearing Frame and Ceramic Press", specifically, you can refer to the patent with application number 202210618346.2, which can greatly save the height and width of the press. Compared with traditional presses, it saves 30%-50% of steel costs and space volume, and is suitable for pressing ultra-large ceramic plates over 3 meters.

[0005] Secondly, according to the present invention, by arranging the blanks into the forming flexible self-exhaust frame, the frame during the forming process can ensure the forming force and realize the exhaust function, thereby providing higher powder density, especially the density around the brick blanks, and greatly reducing trimming waste.

[0006] Finally, according to the present invention, the flexible self-exhaust frame is arranged below the forming part, which further improves the exhaust of the ceramic powder (especially the upper surface of the ceramic), greatly improving its density and smoothness.

[0007] The purpose of the present invention is achieved by the following technical solutions: A continuous pressing forming flexible self-exhaust frame of a ceramic press is used in the ultra-large-scale ceramic thick blank forming process; it is characterized by comprising a flexible self-exhaust frame, a forming press structure, a forming blank docking mechanism, a flexible self-exhaust frame dust cleaning structure and a blank feeding structure, the forming flexible self-exhaust frame structure comprises a lower belt, a forming boss and a self-exhaust frame and a lower exhaust mechanism, the multiple forming flexible self-exhaust frames are arranged on the lower belt forming a loop, the upper surface of the forming flexible self-exhaust frame passes through the hollow pressing area of ​​the forming press structure, the forming press structure is on the forming boss and the self-exhaust frame and the blank During pressing, the forming boss and the self-exhaust frame realize frame-shaped forming of the blank during the pressing process due to their elasticity and exhaust properties. The formed blank leaves the forming press structure with the movement of the lower belt. When the formed flexible self-exhaust frame turns at the end of the arc on the upper surface of the lower belt as the lower belt moves downward in an arc, the formed blank in the formed flexible self-exhaust frame is demoulded from the formed flexible self-exhaust frame at the arc due to its own rigidity and linear motion. The formed blank in the formed flexible self-exhaust frame is docked with the forming blank docking mechanism, and the emptied formed flexible self-exhaust frame returns to the blank loading position through the bottom of the pressing press structure to form a cycle production.

[0008] The molded flexible self-exhaust frame includes a lower belt, a molded boss, a self-exhaust frame and a lower exhaust mechanism, characterized in that the molded boss and the self-exhaust frame are arranged on the outer surface of the lower belt loop, and the molded boss and the self-exhaust frame are distributed on both sides and front and back along the lower belt loop direction to form a frame shape, the molded boss is arranged on the inner side of the self-exhaust frame and maintains a spacing, and the cross-sectional shape of the molded boss is triangular, the self-exhaust frame includes a molded soft rubber strip and an exhaust filter arranged on the molded soft rubber strip, the exhaust filter is attached to the top of the molded soft rubber strip and the inner and outer sides near the center of the frame, the molded soft rubber strip is provided with an exhaust channel, the exhaust filter wraps the exhaust channel after filtering of the molded soft rubber strip and forms a filtered exhaust cavity with it, the molded soft rubber strip is also provided with a molded soft rubber strip lower exhaust channel or a molded soft rubber strip side exhaust channel that is communicated with the exhaust channel after filtering of the molded soft rubber strip, the molded soft rubber strip lower exhaust channel is provided with a lower belt exhaust channel; the lower belt exhaust channel is provided with a lower exhaust structure for generating suction.

[0009] The blank distributing mechanism distributes the blank on the forming boss at the initial end of the lower belt and the self-exhaust frame, and transports it to the lower plate of the power mechanism in the hollow pressing area of ​​the forming press structure and stops. The power mechanism drives the lower plate of the power mechanism or the upper plate of the power mechanism to perform pressing. The self-exhaust frame and the blank in the frame contact the upper contact plate during the pressing process. At this stage, the self-exhaust frame and the blank in the frame are compressed, and the air generated by the compression of the blank is discharged through the self-exhaust frame. The forming boss resists most of the outward extrusion force of the blank during the compression process on the inner side of the self-exhaust frame and the bottom of the blank. While exhausting the air, the self-exhaust frame uses the friction force generated by the compression of the upper contact plate to resist the The outward extrusion force of the block part of the blank during the compression process is blocked, so that the blank has sufficient forming force and exhaust volume, thereby ensuring the density and quality of the blank forming. After the pressing is completed, the driving mechanism drives the lower reset, and the forming boss and the self-exhaust frame move to the end of the arc of the upper surface under the drive of the lower belt, and when the end turns in the downward arc movement with the lower belt, the formed blank in the forming flexible self-exhaust frame is demolded from the forming flexible self-exhaust frame at the arc due to its own rigidity and linear motion, and the formed blank in the forming flexible self-exhaust frame is docked with the forming blank docking mechanism, and the emptied forming flexible self-exhaust frame returns to the blank loading position through the bottom of the press structure, forming a cycle production.

[0010] As a further feature of the present invention, the molded flexible self-exhaust frame is characterized in that the molding bosses and the self-exhaust frame are evenly distributed on the outer surface of the lower belt, and the molding bosses, the inner side of the center of the self-exhaust frame and the upper surface of the lower belt form a molding space for loading the blanks, and the space for loading the blanks forms continuous pressing and loop transportation along with the lower belt.

[0011] As a further development of the present invention, the molded flexible self-exhaust frame is characterized in that the molded bosses and the molded soft rubber strips of the self-exhaust frame are evenly distributed on the outer surface of the lower belt, the molded bosses and the molded soft rubber strips of the self-exhaust frame are bonded to the outer surface of the lower belt, and the exhaust filter is attached to the top of the molded soft rubber strips and the inner and outer sides near the center of the frame.

[0012] As a further feature of the present invention, the self-exhaust frame is characterized in that a molded soft rubber strip exhaust channel is provided on the molded soft rubber strip, the exhaust channel after filtering by the molded soft rubber strip and the exhaust filter form a filter exhaust cavity, the filter exhaust cavity and the lower exhaust channel of the molded soft rubber strip or the side exhaust channel of the molded soft rubber strip are communicated, the lower exhaust channel of the molded soft rubber strip is communicated with the lower belt exhaust channel, the lower belt exhaust channel is communicated with the lower exhaust structure for generating air suction, and the side exhaust channel is communicated with the external atmospheric environment.

[0013] As a further feature of the present invention, the self-exhaust frame is characterized in that the exhaust filter is made of flexible material, and is composed of a plurality of filter holes, through which air can pass, but normal blank particles cannot, and the optimal exhaust filter has a mesh size greater than or equal to 80 meshes.

[0014] As a further feature of the present invention, the molded flexible self-exhaust frame is characterized in that the molded soft rubber strip exhaust channel is provided with a step facing the molded boss and the center of the self-exhaust frame, the step and the exhaust filter form a slope inclined toward the molded boss and the center of the self-exhaust frame, the slope is in contact with the molded boss and the blank in the self-exhaust frame, and the slope is conducive to increasing the exhaust area of ​​the blank.

[0015] As a further feature of the present invention, the self-exhaust frame is characterized in that the exhaust filter is provided with sufficient surface roughness. During the pressing process of the exhaust filter and the molded soft rubber strip, the elastic force F21 generated by the molded soft rubber strip causes the friction force F generated by the contact force F201 between the filter and the upper contact panel. The external extrusion force F501 during the pressing process of the blank satisfies the relationship: F>F501 / 2.

[0016] As a further feature of the present invention, the molded flexible self-exhaust frame is characterized in that the molded boss and the molded soft rubber strip are made of highly flexible compressible material, the hardness of the molded boss is greater than that of the molded soft rubber strip, the height of the molded boss is lower than that of the molded soft rubber strip, the molded boss and the molded soft rubber strip can be pressed and elastically deformed, the molded soft rubber strip can be composed of a single layer or multiple layers of materials with different elasticities stacked together, and the amount of elastic deformation of the molded soft rubber strip is equal to or greater than the amount of compression of the blank.

[0017] As a further feature of the present invention, the flexible forming boss and self-exhaust frame can realize loop transportation along with the lower belt. When the flexible forming boss and self-exhaust frame realize a circular arc downward movement and turn at the end of the upper surface of the loop transportation, the forming blank in the forming flexible self-exhaust frame is demoulded from the forming flexible self-exhaust frame at the circular arc due to its own rigidity and linear motion, and the forming blank in the forming flexible self-exhaust frame is docked to the forming blank docking mechanism; Beneficial effects:

[0018] 1. The present invention sets a forming flexible self-exhaust frame on a belt that forms a loop transportation, and utilizes the flexible demolding of the belt and the forming flexible self-exhaust frame to achieve continuous pressing and forming. Combined with "A Prestressed and Prestrained Load-bearing Frame and Ceramic Press", specifically, the patent application number 202210618346.2 can be referred to, which can greatly save the height and width of the press. Compared with traditional presses, it saves 30%-50% of steel costs and space volume, and is suitable for pressing ultra-large ceramic plates of more than 3 meters.

[0019] 2. The molded soft rubber strip of the present invention is made of flexible material. During the pressing process, the molded boss and the molded soft rubber strip undergo elastic deformation under the action of the pressing force to prevent the powder from squeezing outward during the pressing process. The molded soft rubber strip of the flexible material can first absorb the impact force squeezed out in the middle, and at the same time, combined with the upper pressure of the contact panel and the friction generated by the surface, the molded soft rubber strip slowly gives the powder a rebound pressure to extrude the blank, and supplement the force of the original dead corner area, so that the density of the blank is more uniform, and the powder around the blank is strengthened and compacted, so that the density around the blank is compensated, the strength of the blank is improved, and the scrap rate of the surrounding blank is greatly reduced.

[0020] 3. The exhaust filter and the exhaust channel on the molded soft rubber strip of the present invention still maintain proportional exhaust space even during the elastic deformation of the molded soft rubber strip, so that exhaust can be achieved in the entire pressing process, which is beneficial to the discharge of air in the blank layer. In particular, the oblique contact surface between the exhaust filter and the blank increases the exhaust contact surface and greatly improves the exhaust capacity. In particular, continuous exhaust capacity is crucial during the compaction stage, which improves the density and compactness of the blank and greatly improves the pressing molding quality.

[0021] 4. The flexible self-exhaust frame for pressing and exhaust molding of the present invention is set on the lower belt, and the powder can be directly arranged in the frame, which is beneficial to prevent the leakage of powder during transportation and pressing, and is beneficial to the rapid transportation of powder. The functions of this molding boss and self-exhaust frame are similar to those of traditional molding hard frames. While achieving the molding function of the hard frame, it can achieve proportional compression with the blank and maintain continuous exhaust throughout the entire pressing process. In addition, the upper surface of the blank is a flat pressing surface, which is beneficial to further improve the exhaust on the upper surface of the ceramic powder, greatly improving the molding quality and molding density.

[0022] 5. The pressing and exhausting forming flexible self-exhaust frame of the present invention utilizes the flexible deformation of the forming flexible self-exhaust frame following the circular motion of the lower belt, combined with the rigidity and linear motion of the forming blank itself, thereby realizing the demoulding of the forming blank and the forming flexible self-exhaust frame at the circular motion. The demoulding is smooth and simple, with little impact on the blank, strong practicality, and thus efficiently realizing loop circulation transportation production; BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the edge sealing strip with a pressed and formed structure in the prior art.

[0024] Figure 2 It is a schematic diagram of the blank pressing state of the pressing forming structure in the prior art.

[0025] Figure 3 It is a schematic diagram of a flexible self-exhaust frame according to a preferred embodiment of the present invention.

[0026] Figure 4 It is a cross-sectional schematic diagram of the overall layout of the flexible self-exhaust frame of a preferred embodiment of the present invention.

[0027] Figure 5 It is a partially enlarged view of the cross-sectional schematic diagram of the overall layout of the flexible self-exhaust frame of a preferred embodiment of the present invention.

[0028] Figure 6 This is an overall schematic diagram of the forming boss and the self-exhaust frame of the preferred embodiment of the present invention.

[0029] Figure 7 It is a schematic cross-sectional view of the molding boss and the overall self-exhaust frame of the flexible self-exhaust frame according to a preferred embodiment of the present invention.

[0030] Figure 8 Schematic diagram II showing the enlarged local features of the forming boss and the self-exhaust frame of the flexible self-exhaust frame in a preferred embodiment of the present invention.

[0031] Fig. 9 Schematic diagram III of the enlarged local features of the forming boss and the self-exhaust frame of the flexible self-exhaust frame in the preferred embodiment of the present invention.

[0032] Fig.10 Schematic diagram I of the enlarged local features of the forming boss and the self-exhaust frame of the flexible self-exhaust frame in a preferred embodiment of the present invention.

[0033] Fig.11 It is a schematic diagram of the overall layout of the flexible self-exhaust frame of a preferred embodiment of the present invention.

[0034] Fig.12 It is a partial schematic diagram of demoulding of the flexible self-exhaust frame according to a preferred embodiment of the present invention.

[0035] In the figure: 100, forming flexible self-exhaust frame; 1, lower belt; 11, lower belt exhaust channel; 2, self-exhaust frame; 21, forming soft rubber strip; 22, forming soft rubber strip exhaust channel; 221, forming soft rubber strip filter exhaust channel; 222, forming soft rubber strip lower exhaust channel; 223, forming soft rubber strip side exhaust channel; 23, exhaust filter; 3, lower exhaust structure; 31, lower exhaust side plate; 311 lower exhaust side plate exhaust channel; 32, lower exhaust front and rear plates; 4, forming boss; 200, forming press structure; 201, upper contact panel; 202, power mechanism upper plate; 203, power mechanism lower plate; 300, forming blank docking mechanism; 400, flexible self-exhaust frame dust cleaning structure; 500, blank feeding mechanism; 501, blank; 502, forming blank; DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the technical solutions and advantages of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The preferred embodiments of the present invention are given in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0037] In the description of the present invention, unless otherwise specified, the terms "top", "bottom", "inside", "outside", "horizontal", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Fig.11 As shown, a continuous pressing forming flexible self-exhaust frame 100 of a ceramic press is used in the ultra-large-scale ceramic thick blank forming process; it is characterized in that it includes a flexible self-exhaust frame 2, a forming press structure 200, a forming blank docking mechanism 300, a flexible self-exhaust frame dust cleaning structure 400 and a blank feeding structure 500, the forming flexible self-exhaust frame structure 100 includes a lower belt 1, a forming boss 4 and a self-exhaust frame 2 and a lower exhaust mechanism 3, the multiple forming flexible self-exhaust frames 100 are arranged on the lower belt forming a loop, the upper surface of the forming flexible self-exhaust frame 100 passes through the hollow pressing area of ​​the forming press structure 200, and the forming press structure 100 is connected to the forming boss 4 and the self-exhaust frame 2 and the blank. 501 is pressed, and the forming boss 4 and the self-exhaust frame 2 realize frame-shaped forming of the blank during the pressing process due to their elasticity and exhaust properties. The formed blank 502 leaves the forming press structure 200 with the movement of the lower belt, and when the formed flexible self-exhaust frame 100 turns at the end of the arc on the upper surface of the lower belt 1 as the lower belt 1 moves downward in an arc, the formed blank 502 in the formed flexible self-exhaust frame 100 is demoulded from the formed flexible self-exhaust frame 100 at the arc due to its own rigidity and linear motion, and the formed blank 502 in the formed flexible self-exhaust frame 100 is docked with the formed blank docking mechanism 300, and the emptied formed flexible self-exhaust frame 100 passes through the bottom of the forming press structure 200 and returns to the blank loading position, forming a cycle production.

[0039] like Figure 3-4As shown, the flexible press molding structure 200 includes an upper contact panel 201, an upper plate 202 of a power mechanism, and a lower plate 203 of a power mechanism. The upper contact panel 201 is arranged above the flexible self-exhaust frame 100, the upper plate 202 of the power mechanism is arranged above the upper contact panel 201, and the lower plate 203 of the power mechanism is arranged below the flexible self-exhaust frame 100.

[0040] like Figure 5-10 As shown, the molded flexible self-exhaust frame 100 includes a lower belt 1, a molded boss 4, a self-exhaust frame 2 and a lower exhaust mechanism 3, characterized in that the molded boss 4 and the self-exhaust frame 2 are arranged on the outer surface of the lower belt 1 loop, the molded boss 4 and the self-exhaust frame 2 are distributed on both sides and front and back along the loop direction of the lower belt 1 to form a frame shape, the molded boss 4 is arranged on the inner side of the self-exhaust frame 2 and maintains a spacing, the cross-sectional shape of the molded boss 4 is a triangle, the self-exhaust frame 2 includes a molded soft rubber strip 21 and an exhaust filter 23 arranged on the molded soft rubber strip, and the exhaust filter 23 fits An exhaust channel 22 is provided on the molded soft rubber strip 2 at the top of the molded soft rubber strip 21 and on the inner and outer sides near the center of the frame. The exhaust filter 23 wraps the exhaust channel 22 after filtering by the molded soft rubber strip 21 and forms a filtering exhaust cavity with it. The molded soft rubber strip 21 is also provided with a molded soft rubber strip lower exhaust channel 222 or a molded soft rubber strip side exhaust channel 223 which is communicated with the exhaust channel 221 after filtering by the molded soft rubber strip. The molded soft rubber strip lower exhaust channel 222 is provided with a lower belt exhaust channel 11; the lower belt exhaust channel 11 is provided with a lower exhaust structure for generating air intake.

[0041] In this embodiment, the power mechanism of the forming press structure 100 can adopt a driving mechanism of the prior art such as hydraulic power, and the driving mechanism of the upper contact panel 201 can operate independently from the power driving mechanism of the lower belt 1, and the setting form is not limited.

[0042] like Figure 5As shown, in this embodiment, the molded soft rubber strip 22 is made of flexible material. During the pressing process, the molded soft rubber strip 21 undergoes elastic deformation under the action of the pressing force to prevent the powder from moving outward. The molded boss 4 of the flexible material and the molded soft rubber strip 2 can first absorb the impact force squeezed out in the middle. At the same time, the molded soft rubber strip 2 cooperates with the upper pressure of the contact panel 201 and the surface friction force. The soft rubber strip slowly gives the powder a rebound pressure to extrude the blank, and supplements the original dead angle area with a force, so that the density of the blank is more uniform, and the powder around the blank is strengthened and compacted, so that the density around the blank is compensated, the pressing quality and the strength of the blank are greatly improved, and the scrap rate of the surrounding blank is greatly reduced. On the other hand, the exhaust filter 23 and the molded soft rubber strip exhaust channel 22 still maintain an equal proportion of exhaust space even during the elastic deformation of the soft rubber strip, so that exhaust can be achieved throughout the pressing process, which is conducive to the discharge of air in the blank layer. Especially in the compaction stage, the removal of gas is very important, which greatly improves the density and density of the blank and greatly improves the pressing quality; The pressing and forming structure of the present invention is simple and scientific in design, has good pressing and forming effect and is highly practical.

[0043] As a further preferred scheme, the lower exhaust channel 22 of the molded soft rubber strip is connected to the lower belt exhaust channel 11, and the lower belt exhaust channel 11 is connected to the lower exhaust side plate exhaust channel 311 of the lower exhaust structure 3. The lower exhaust structure 3 can generate suction, so that a large amount of gas in the blank 501 can be discharged naturally or by applying suction through the exhaust channel, especially to meet the large-scale and rapid exhaust needs of large plates, thereby ensuring the exhaust quality of large plates.

[0044] like Figure 8-9 As shown, as a further preferred solution, the molded soft rubber strip 21 of the self-exhaust frame 2, the molded soft rubber strip exhaust channel 22, the exhaust filter 23 and the lower exhaust structure 3 can be matched in a variety of ways, and the setting form is not limited.

[0045] In order to further enhance the exhaust area of ​​the blank, as a further preferred solution, the exhaust filter 23 of the exhaust cavity is tilted toward the center of the frame to increase the contact area between the exhaust filter 23 and the blank 501, improve the exhaust effect, and further ensure the density of the powder around the brick blank.

[0046] As a further preferred solution, the upper contact panel 201 may be an upper belt or a force-bearing panel.

[0047] like Fig.12As shown, as a further feature of the present invention, the flexible forming boss 4 and the self-exhaust frame 2 can realize loop transportation along with the lower belt 1, and when the flexible forming boss 4 and the self-exhaust frame 2 realize a circular arc downward movement and turn at the end of the upper surface of the loop transportation, the forming blank 502 in the forming flexible self-exhaust frame 100 is demoulded from the forming flexible self-exhaust frame 100 at the circular arc due to its own rigidity and linear movement, and the forming blank 502 in the forming flexible self-exhaust frame 100 is docked to the forming blank docking mechanism 300.

[0048] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. For ordinary technicians in this field, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for producing a ceramic press machine by continuous pressing and forming a flexible self-exhaust frame ceramic, characterized in that: It includes a forming flexible self-exhaust frame, a forming press structure, a forming blank docking mechanism, a flexible self-exhaust frame dust cleaning structure and a blank distribution structure. The forming flexible self-exhaust frame structure includes a lower belt, a forming boss, a self-exhaust frame and a lower exhaust mechanism. The multiple forming flexible self-exhaust frames are arranged on the lower belt forming a loop. The upper surface of the forming flexible self-exhaust frame passes through the hollow pressing area of ​​the forming press structure. The forming blank docking mechanism is docked with the forming flexible self-exhaust frame at the end arc of the upper surface. The flexible self-exhaust frame dust cleaning structure is arranged on the lower surface of the forming flexible self-exhaust frame. The blank distribution structure is arranged on the upper surface of the forming flexible self-exhaust frame.

2. According to claim 1, the molded flexible self-exhaust frame comprises a lower belt, a molded boss, a self-exhaust frame and a lower exhaust mechanism, characterized in that: The molded boss and the self-exhaust frame are arranged on the outer surface of the lower belt loop, and the molded boss and the self-exhaust frame are distributed on both sides and front and back along the direction of the lower belt loop to form a frame shape, the molded boss is arranged on the inner side of the self-exhaust frame and maintains a spacing, and the cross-sectional shape of the molded boss is triangular, and the self-exhaust frame includes a molded soft rubber strip and an exhaust filter arranged on the molded soft rubber strip, the exhaust filter is attached to the top of the molded soft rubber strip and the inner and outer sides near the center of the frame, the molded soft rubber strip is provided with an exhaust channel, the exhaust filter wraps the exhaust channel after filtering of the molded soft rubber strip and forms a filtered exhaust cavity with it, the molded soft rubber strip is also provided with a molded soft rubber strip lower exhaust channel or a molded soft rubber strip side exhaust channel that is communicated with the exhaust channel after filtering of the molded soft rubber strip, the molded soft rubber strip lower exhaust channel is provided with a lower belt exhaust channel; the lower belt exhaust channel is provided with a lower exhaust structure for generating suction.

3. The molded flexible self-exhausting frame according to claim 1, characterized in that: The forming bosses and the self-exhaust frame are evenly distributed on the outer surface of the lower belt, and the inner side of the center of the forming bosses and the self-exhaust frame and the upper surface of the lower belt form a forming space for loading blanks, and the space for loading blanks is continuously pressed and formed and transported in a loop along with the lower belt.

4. The molded flexible self-exhaust frame according to claim 1, characterized in that: The molded boss and the molded soft rubber strip of the self-exhaust frame are evenly distributed on the outer surface of the lower belt, and the molded boss and the molded soft rubber strip of the self-exhaust frame are bonded to the outer surface of the lower belt, and the exhaust filter is attached to the top of the molded soft rubber strip and the inner and outer sides near the center of the frame.

5. The self-exhaust frame according to claim 1, characterized in that: The molded soft rubber strip is provided with a molded soft rubber strip exhaust channel, the exhaust channel after filtering by the molded soft rubber strip and the exhaust filter form a filtering exhaust cavity, the filtering exhaust cavity is connected to the exhaust channel below the molded soft rubber strip or the exhaust channel on the side of the molded soft rubber strip, the exhaust channel below the molded soft rubber strip is connected to the lower belt exhaust channel, the lower belt exhaust channel is connected to the lower exhaust structure for generating suction, and the side exhaust channel is connected to the external atmospheric environment.

6. The self-exhaust frame according to claim 5, characterized in that: The exhaust filter is made of flexible material and consists of a plurality of filter holes. The filter holes allow air to pass through, but normal blank particles cannot pass through. The optimal exhaust filter has a mesh size greater than or equal to 80 meshes.

7. The self-exhaust frame according to claim 5, characterized in that: The molded soft rubber strip exhaust channel is provided with a step facing the molding boss and the center of the self-exhaust frame. The step and the exhaust filter form an inclined surface inclined toward the molding boss and the center of the self-exhaust frame. The inclined surface contacts the molding boss and the blank in the self-exhaust frame, and the inclined surface increases the exhaust area of ​​the blank.

8. The self-exhaust frame according to claim 5, characterized in that: The exhaust filter is provided with sufficient surface roughness. During the pressing process of the exhaust filter and the molded soft rubber strip, the elastic force F21 generated by the molded soft rubber strip causes the friction force F generated by the contact force F201 between the filter and the upper contact panel. The external extrusion force F501 during the pressing process of the blank satisfies the relationship: F>F501 / 2.

9. The molded flexible self-exhausting frame according to claim 1, characterized in that: The molding boss and the molding soft rubber strip are made of highly flexible compressible material. The hardness of the molding boss is greater than that of the molding soft rubber strip. The height of the molding boss is lower than that of the molding soft rubber strip. The molding boss and the molding soft rubber strip can be pressed and elastically deformed. The molding soft rubber strip can be composed of a single layer or multiple layers of materials with different elasticities stacked together. The amount of elastic deformation of the molding soft rubber strip is equal to or greater than the amount of compression of the blank.

10. A ceramic production method, characterized in that: The ceramic production using the continuous pressing and forming flexible self-exhaust frame described in claim 1 includes the following production method: 1) The blank feeding mechanism feeds the blank into the forming flexible self-exhausting frame at the initial end and scrapes the excess blank out of the forming flexible self-exhausting frame; 2) The formed flexible self-exhaust frame is driven by the lower belt to be transported to the lower plate of the power mechanism in the hollow pressing area of ​​the forming press structure and stops. The power mechanism drives the lower plate of the power mechanism or the upper plate of the power mechanism to press. The formed flexible self-exhaust frame realizes blank forming and self-exhaust during the pressing process. After the pressing is completed, the driving mechanism of the forming press structure drives the lower plate to reset; 3) When the molded flexible self-exhaust frame is transported to the end of the upper surface by the lower belt, the molded flexible self-exhaust frame moves downward along the arc of the lower belt, and the molded blank is separated from the molded flexible self-exhaust frame due to its own rigidity and linear motion. The molded flexible self-exhaust frame and the molded blank are demolded at the arc, and the molded blank in the molded flexible self-exhaust frame is docked to the molded blank docking mechanism; 4) The forming flexible self-exhaust frame emptied of the blank passes under the forming press structure and is transported to the top of the flexible self-exhaust frame dust cleaning structure, and the flexible self-exhaust frame dust cleaning structure cleans the blank powder remaining in the forming flexible self-exhaust frame; 5) After passing through the flexible self-exhaust frame dust cleaning structure, the formed flexible self-exhaust frame is driven by the lower belt to return to the bottom of the initial blank feeding mechanism for continuous production of circulating feeding.

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