Bottom plate with lower die, kiln furniture, cloth structure and production line

Abstract

The utility model discloses a bottom plate with a lower die, kiln furniture, a cloth structure and a production line, the bottom plate comprises a bearing plate and the lower die, and the lower die is installed on the bearing plate. The kiln furniture comprises a bottom plate and first flanges, the first flanges are installed on the periphery of the bottom plate, and a cavity used for material distribution is defined by the first flanges and the lower die. Three material distribution structures are provided, are selectively used according to needs, and mainly comprise kiln furniture, grids, limiting frames and material distribution devices. An upper die used for compacting raw materials in kiln furniture is additionally arranged on the production line on the basis of a material distribution structure. During production, the first flange is firstly placed on the bearing plate and is framed by the limiting frame, then the grating is placed for material distribution, the grating is taken away for material pressing after material distribution is completed, and the limiting frame is taken away after material pressing is completed, so that the next procedure can be carried out. If a groove needs to be arranged, the other grating and the forming roller can be placed in the kiln furniture to implement secondary material distribution after primary material distribution, and the novel material distribution device further has the advantages of being simple in structure, convenient to operate and easy to implement.

Description

Technical Field

[0001] The utility model relates to the field of automated production, in particular to a bottom plate with a lower mold, kiln furniture, a cloth structure and a production line for producing sound-absorbing panels. Background Art

[0002] In the existing sound-absorbing board production process, the raw materials need to be placed in a steel mold for initial pressing (semi-finished product), and then the initially pressed semi-finished product is moved to a kiln, and the kiln and the semi-finished product are sent into the kiln for firing.

[0003] The biggest drawback of this production method is that the semi-finished products, due to the low pressing pressure during initial pressing, have not undergone firing and hardening, resulting in low surface and overall strength. Consequently, they are prone to bumps, collapse, and chipping during handling. Furthermore, when placed in the kiln, the mismatch between the kiln and the panels can cause shape variations on the front and back of the panels, significantly impacting the appearance and quality of the finished product.

[0004] Therefore, the existing technology needs to be further improved and perfected. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a base plate with a lower mold.

[0006] Another object of the present invention is to overcome the deficiencies of the prior art and provide a kiln furniture using the above-mentioned bottom plate.

[0007] The third purpose of the present invention is to overcome the deficiencies of the prior art and provide a material distribution structure using the above-mentioned kiln furniture.

[0008] The fourth purpose of the present invention is to overcome the shortcomings of the prior art and provide a production line using the above-mentioned cloth structure.

[0009] The purpose of this utility model is achieved through the following technical solutions:

[0010] A base plate with a lower mold comprises a support plate and a lower mold. The lower mold is mounted on and fixedly connected to the support plate. The top of the lower mold is wavy, reflecting the mold shape of the front surface of the sound-absorbing panel. Installation space is provided between the four side edges of the lower mold and the four side edges of the support plate.

[0011] Another purpose of the utility model is achieved through the following technical solutions:

[0012] A kiln furniture mainly comprises the above-mentioned bottom plate and a first rib. The first rib is placed in the mounting space of the support plate and surrounds the lower mold. The inner side of the first rib is in close contact with the outer side of the lower mold. The inner side of the first rib and the lower mold together form a cavity for distributing material.

[0013] The third object of the present invention is achieved through the following technical solutions (three fabric structures):

[0014] A distribution structure (distribution structure 1) is primarily used for producing conventional sound-absorbing panels (i.e., with a wavy front surface and a flat back surface). The distribution structure primarily comprises the aforementioned kiln furniture, a first limiting frame, a first grille, and a first distribution device. The first limiting frame is secured to the kiln furniture, its lower portion clamping the outer side of the first rib. Its upper portion defines a first feed opening of the same size as the lower mold, projecting upward from the first rib. The first grille is placed within the kiln furniture. The first distribution device distributes material along the top of the first grille.

[0015] To distribute the material, first place the first retaining edge on the support plate, enclosing the lower mold. Then, the first limiting frame is placed over the kiln furniture, securing the four first retaining edges to form a sealed distribution cavity with the lower mold. (If tightening is required, push cylinders can be installed on the four sides of the kiln furniture to tighten the first retaining edges and facilitate distribution and die pressing.) Finally, the first grille is placed into the distribution cavity, and the first distribution mechanism is activated. The material is distributed along the top of the first grille, while also being scraped flat and evenly. After distribution is complete, the first grille is removed and prepared for die pressing. Because the raw materials used in acoustic panels lack fluidity and exhibit a certain degree of viscosity, scraping with a conventional scraper can easily result in uneven scraping, leading to accumulation or potholes. Therefore, grilles or meshes are used to subdivide the distribution cavity into several zones. These grilles provide a barrier to the material within these zones, ensuring even distribution and smoothing within the zones.

[0016] Furthermore, if grooves are required on the back of the sound-absorbing panel, the present invention provides an alternative distribution structure (distribution structure 2). This structure simply adds a second grille for secondary distribution, a plurality of first forming rollers, and a second distribution device to the aforementioned distribution structure (distribution structure 1). The second grille is placed within the kiln furniture. The bottom of the second grille is flat, and the top is provided with a plurality of first grooves (corresponding to the grooves on the back of the sound-absorbing panel). The first forming rollers are placed in the first grooves of the second grille. The second distribution device is provided with a plurality of first arcuate notches. During distribution, the first arcuate notches engage the first forming rollers, and the second distribution device distributes the material along the axis of the first forming roller while the first forming roller rotates.

[0017] When a second feeding is required, a second grid is placed into the kiln furniture based on the first feeding. The first forming roller is then placed in the first groove of the second grid. Finally, the second feeding device is activated to feed the material along the axis of the first forming roller. The first forming roller rotates simultaneously, allowing the surrounding material to fall into the first groove of the second grid as the first roller rotates, thus filling the second grid evenly and fully. After the feeding is completed, the second grid is removed and the die pressing operation is prepared.

[0018] A distribution structure (distribution structure three) is primarily used to produce sound-absorbing panels with a wavy front and grooved back. Compared to the previous two-stage distribution structure (distribution structure two), this structure can complete distribution in a single step, saving both process steps and time. This structure primarily comprises the aforementioned kiln furniture, a second limiting frame, a third grid, a second forming roller, and a third distribution device. The second limiting frame is mounted on the kiln furniture, its lower portion clamping the outer side of the first rib. Its upper portion defines a second feed opening of the same size as the lower mold, projecting upward from the first rib. The third grid is placed within the kiln furniture, with a flat bottom and a plurality of second grooves defined at its top. The second forming roller is positioned within the second grooves of the third grid. The third distribution device is provided with a plurality of second arcuate notches. During distribution, the second arcuate notches engage the second forming roller, and the third distribution device distributes material along the axis of the second forming roller while the second forming roller rotates.

[0019] To lay the material, first place the first retaining edge on the support plate, enclosing the lower die. Then, slide the second limiting frame onto the kiln furniture, framing the four first retaining edges and forming a sealed material laying cavity with the lower die. (If tightening is required, push cylinders can be installed on all four sides of the kiln furniture to tighten the first retaining edges and facilitate material laying and die pressing.) Next, place the third grid into this material laying cavity, and position the second forming drum in the second groove of the third grid. Finally, activate the third material laying mechanism, laying the material along the axis of the second forming drum while the second forming drum rotates. This design allows nearby material to fall into the second groove of the third grid as the second forming drum rotates, thus filling the third grid evenly and fully. After material laying is complete, remove the third grid and prepare for die pressing.

[0020] The fourth object of the present invention is achieved through the following technical solutions:

[0021] A production line primarily comprises an upper mold and the aforementioned kiln furniture or one of the three aforementioned material distribution structures. The upper mold is positioned above the kiln furniture and, after material distribution is complete, presses downward to compact and shape the material. After material distribution is complete, the corresponding grille is removed, and the upper mold (for acoustic panels with grooves on the back, the upper mold has protrusions on the bottom corresponding to the grooves) is driven from top to bottom to compact the material within the kiln furniture. After compaction, the upper mold returns to its original position, the limit frame is removed, and the next step is initiated.

[0022] As a preferred embodiment of the present invention, the second distribution device and the third distribution device have the same composition, connection relationship and structure, while the first distribution device and the second distribution device adopt the same composition and connection relationship, and the difference between the two is the shape of the bottom of the scraper. The detailed description is as follows: The three distribution devices all include a hopper, a scraper, a gate, a first cylinder, and a second cylinder. A discharge port is provided at the bottom of the hopper. The scraper is vertically arranged on one side of the discharge port, and the gate is inclinedly arranged on the other side of the discharge port. The first cylinder is arranged on one side of the hopper, and its driving end is connected to the scraper to drive the scraper to move up and down. The second cylinder is arranged at the bottom of the hopper, and its driving end is connected to the gate to drive the gate to close or open the discharge port. The bottom of the scraper of the first distribution device is flat and has no notches, while the bottom of the scrapers of the second and third distribution devices are both provided with a plurality of first arc-shaped notches, the shape of the notches is the same as the shape of the part of the forming roller protruding from the grille.

[0023] As a preferred solution of the present invention, the outer side of the first rib is flush with the outer side of the supporting plate. Only by designing the limiting frame in this way can the first rib and the supporting plate be wrapped together, thereby achieving better positioning and limiting of the first rib.

[0024] As a preferred solution of the present invention, the lower portion of the first limiting frame clamps the first rib and the outer side of the bottom plate. The advantage of this design is that the first rib can obtain better limiting and positioning effects, thereby achieving a close fit with the lower mold.

[0025] As a preferred solution of the present invention, the height of the first grid is not greater than the height of the first feed port.

[0026] As a preferred solution of the present invention, the height of the first feed port is flush with the top of the second grid.

[0027] As a preferred solution of the present invention, the supporting plate and the lower mold are both provided with through-hollowing.

[0028] As a preferred solution of the present invention, the first rib is provided with a through hollowing.

[0029] Compared with the prior art, the present invention also has the following advantages:

[0030] (1) The base plate with a lower mold, kiln furniture, material distribution structure, and production line provided by the present invention can simultaneously carry out the three working steps of material distribution, die pressing, and firing in the kiln furniture. Compared with the prior art, since there is no need to move the semi-finished products that have been initially pressed, defects such as collision, collapse, and material falling during the moving process can be avoided. Problems such as chipping, dents, and misalignment caused by the shape of the kiln furniture after moving can also be avoided, thereby significantly improving production efficiency and product quality.

[0031] (2) The bottom plate with the lower mold provided by the present invention adopts a combination of cloth and pressing material, so that the semi-finished product to be compacted and formed is most ideally matched with the kiln furniture, and its quality after firing and forming can be better guaranteed.

[0032] (3) The fabric structure (fabric structure 2) provided by the present invention adopts a secondary fabric method to produce products with grooves on the back. On the one hand, it can ensure the uniformity and fullness of the fabric. On the other hand, the secondary fabric structure can be increased or decreased as needed to adapt to more product varieties.

[0033] (4) The cloth-laying structures (cloth-laying structures 2 and 3) provided by the present invention are both carried out by distributing the material while rotating the forming roller. The advantage of this is that the rotating forming roller brings the nearby raw materials into the grooves of the grille, so that the grille can be filled more evenly and fully.

[0034] (5) The fabric structure and production line provided by the present invention can ensure uniform density when scraping and flattening the raw materials, thereby ensuring uniform distribution of stress generated when the semi-finished products are heated and cooled in the kiln, and ultimately effectively reducing the occurrence of product cracking and deformation.

[0035] (6) The cloth structures provided by the present invention (cloth structures 1, 2, and 3) all use scrapers in conjunction with grids to flatten the raw materials. This cloth method is particularly suitable for raw materials with stickiness or poor fluidity. Compared with the existing technology, the cloth using the solution of the present invention is smoother, more uniform, and fuller.

[0036] (7) The utility model adopts a mold + kiln integrated design structure, the purpose of which is to carry out material laying, pressing and firing in the same kiln to ensure the stability and uniformity of product size and shape. At the same time, this structure is also conducive to improving the mechanization and automation level of unloading and mold loading operations, thereby achieving a simpler, faster and more efficient production goal. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the bottom plate structure with a lower mold provided by the utility model.

[0038] Figure 2This is a front view of the base plate with the lower mold provided by the utility model.

[0039] Figure 3 It is a three-dimensional diagram of the kiln furniture provided by the utility model.

[0040] Figure 4 It is a three-dimensional diagram of the first grille provided by the present utility model.

[0041] Figure 5 It is a three-dimensional diagram of the first limiting frame provided by the utility model.

[0042] Figure 6 It is a three-dimensional diagram of the second grille provided by the present utility model.

[0043] Figure 7 It is a three-dimensional diagram of the first forming roller provided by the utility model.

[0044] Figure 8 It is a side view of the second fabric structure provided by the present invention.

[0045] Figure 9 This is a front view of the second fabric structure provided by the present invention.

[0046] Figure 10 This is a schematic diagram of the material distribution and pressing process of the first material distribution structure provided by the present invention.

[0047] Figure 11 This is a schematic diagram of the material distribution and pressing process of the second material distribution structure provided by the present invention.

[0048] Description of the reference numerals in the above drawings:

[0049] Core support plate, 2-lower mold, 3-bottom plate, 4-first rib, 5-kiln furniture, 6-first limit frame, 7-first grid, 8-first feeding device, 9-first feeding port, 10-second grid, 11-first forming roller, 12-second feeding device, 13-first groove, 14-first arc-shaped notch, 15-upper mold, 16-hopper, 17-scraper, 18-gate, 19-first cylinder, 20-second cylinder, 21-discharging port, 22-through hollowing. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present invention more clear and explicit, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0051] Example 1:

[0052] like Figures 1 to 2As shown, this embodiment discloses a base plate with a lower mold, which mainly includes a support plate 1 and a lower mold 2. The lower mold 2 is mounted on the support plate 1 and fixedly connected to the support plate 1. The top of the lower mold 2 has a wavy shape, which reflects the mold shape of the front of the sound-absorbing panel. The four side edges of the lower mold 2 and the four side edges of the support plate 1 provide installation space.

[0053] like Figures 1 to 3 As shown, another purpose of the utility model is achieved through the following technical solutions:

[0054] A kiln furniture mainly comprises the above-mentioned bottom plate 3 and a first rib 4. The first rib 4 is placed in the mounting space of the support plate 1 and surrounds the lower mold 2. The inner side of the first rib 4 is in close contact with the outer side of the lower mold 2. The inner side of the first rib 4 and the lower mold 2 together form a cavity for the material to be laid.

[0055] like Figures 1 to 9 As shown, the third purpose of the present invention is achieved through the following technical solutions (three fabric structures):

[0056] A distribution structure (distribution structure 1) is primarily used for producing conventional sound-absorbing panels (i.e., with a wavy front and a flat back). This distribution structure primarily comprises the aforementioned kiln furniture 5, a first limiting frame 6, a first grille 7, and a first distribution device 8. The first limiting frame 6 is secured to the kiln furniture 5, its lower portion clamping the outer side of the first rib 4. Its upper portion defines a first feed opening 9 of the same size as the lower mold 2, projecting upward from the first rib 4. The first grille 7 is placed within the kiln furniture 5. The first distribution device 8 distributes material along the top of the first grille 7.

[0057] To distribute the material, first place the first rib 4 on the support plate 1, enclosing the lower mold 2. Then, the first limiting frame 6 is placed over the kiln furniture 5, simultaneously framing the four first ribs 4 and forming a sealed distribution cavity with the lower mold 2. (To strengthen the tightening force, push cylinders can be installed on the four sides of the kiln furniture 5 to tighten the first ribs 4 to facilitate distribution and die pressing.) Finally, the first grid 7 is placed into the distribution cavity, and the first distribution device 8 is activated. The material is distributed along the top of the first grid 7 while being scraped flat and evenly. After distribution is completed, the first grid 7 is removed and ready for die pressing. Since the raw materials used to produce sound-absorbing panels are not fluid enough and have a certain viscosity, it is easy to scrape unevenly when using an ordinary scraper 17, resulting in the accumulation of raw materials in one place or the formation of potholes. Therefore, grids or meshes are provided to subdivide the material cavity into several areas. These grids have a certain blocking effect on the raw materials in the subdivided areas, and the scraper 17 can evenly smooth and distribute the material in the subdivided areas when scraping the material.

[0058] Furthermore, if grooves are required on the back of the sound-absorbing panel, the present invention provides another distribution structure (distribution structure 2). This structure simply adds a second grille 10 for secondary distribution, a plurality of first forming rollers 11, and a second distribution device 12 to the above-mentioned distribution structure (structure 1). The second grille 10 is placed in the kiln furniture 5. The bottom of the second grille 10 is flat, and the top is provided with a plurality of first grooves 13 (corresponding to the grooves on the back of the sound-absorbing panel). The first forming rollers 11 are placed in the first grooves 13 of the second grille 10. The second distribution device 12 is provided with a plurality of first arcuate notches 14. During distribution, the first arcuate notches 14 are fixed to the first forming roller 11, and the second distribution device 12 distributes the material along the axis of the first forming roller 11 while the first forming roller 11 rotates.

[0059] When a second batch of material distribution is required, the second grid 10 is placed into the kiln furniture 5 based on the first batch of material distribution. The first forming drum 11 is then placed in the first groove 13 of the second grid 10. Finally, the second distribution device 12 is activated to distribute material along the axis of the first forming drum 11. As the first forming drum 11 rotates, the material distribution device 12 allows the surrounding material to fall into the first groove 13 of the second grid 10 as the first drum rotates, thus filling the second grid 10 evenly and fully. After the material distribution is completed, the second grid 10 is removed and prepared for the die pressing operation.

[0060] A distribution structure (distribution structure three) is primarily used to produce sound-absorbing panels with a wavy front and grooved back. Compared to the previous two-stage distribution structure (distribution structure two), this structure allows for a single-step distribution process, saving both process steps and time. This structure primarily comprises the aforementioned kiln furniture 5, a second limiting frame, a third grid, a second forming roller, and a third distribution device. The second limiting frame is secured to the kiln furniture 5, its lower portion clamping the outer side of the first rib 4. Its upper portion defines a second feed opening of the same size as the lower mold 2, projecting upward from the first rib 4. The third grid, placed within the kiln furniture 5, has a flat bottom and several second grooves on its top. The second forming roller is positioned within the second grooves of the third grid. The third distribution device is equipped with several second arcuate notches. During distribution, the second arcuate notches engage the second forming roller, and the third distribution device distributes material along the axis of the second forming roller while the second forming roller rotates.

[0061] To lay the material, first place the first rib 4 on the support plate 1, enclosing the lower mold 2. Then, the second limiting frame is placed over the kiln furniture 5, so that the second limiting frame simultaneously frames the four first ribs 4, forming a sealed laying cavity with the lower mold 2. (If tightening is required, push cylinders can be installed on all four sides of the kiln furniture 5 to tighten the first ribs 4 to facilitate laying and molding operations.) Next, the third grid is placed within this laying cavity, and the second forming roller is positioned in the second groove of the third grid. Finally, the third laying mechanism is activated, laying the material along the axis of the second forming roller, which also rotates. This design allows nearby raw materials to fall into the second groove of the third grid as the second forming roller rotates, thus filling the third grid evenly and fully. After laying, the third grid is removed and prepared for molding.

[0062] like Figures 1 to 11 As shown, the fourth purpose of the utility model is achieved through the following technical solutions:

[0063] A production line primarily comprises an upper mold 15 and the aforementioned kiln furniture 5 or one of the three aforementioned material distribution structures. The upper mold 15 is positioned above the kiln furniture 5 and, after material distribution, presses downward to compact and shape the material. After material distribution is complete, the corresponding grid is removed, and the upper mold 15 (for acoustic panels with grooves on the back, the upper mold 15 may have protrusions on its bottom corresponding to the grooves) is driven from top to bottom to compact the material within the kiln furniture 5. After compaction, the upper mold 15 is reset, the limit frame is removed, and the next step begins.

[0064] As a preferred embodiment of the present invention, the second distribution device 12 has the same composition, connection relationship, and structure as the third distribution device, while the first distribution device 8 and the second distribution device 12 have the same composition and connection relationship. The difference between the two is the shape of the bottom of the scraper 17. Detailed description is as follows: All three distribution devices include a hopper 16, a scraper 17, a gate 18, a first cylinder 19, and a second cylinder 20. A discharge port 21 is provided at the bottom of the hopper 16. The scraper 17 is vertically arranged on one side of the discharge port 21, and the gate 18 is tilted on the other side of the discharge port 21. The first cylinder 19 is arranged on one side of the hopper 16, and its driving end is connected to the scraper 17, driving the scraper 17 to move up and down. The second cylinder 20 is arranged at the bottom of the hopper 16, and its driving end is connected to the gate 18, driving the gate 18 to close or open the discharge port 21. The bottom of the scraper 17 of the first distribution device 8 is flat and has no notches, while the bottom of the scraper 17 of the second and third distribution devices 12 are both provided with a plurality of first arc-shaped notches 14, which have the same shape as the portion of the forming roller protruding from the grille.

[0065] As a preferred solution of the present invention, the outer side of the first rib 4 is flush with the outer side of the supporting plate 1. Only by designing the limiting frame in this way can the first rib 4 and the supporting plate 1 be wrapped together, thereby achieving better positioning and limiting of the first rib 4.

[0066] As a preferred solution of the present invention, the lower portion of the first limiting frame 6 tightens the first rib 4 and the outer side of the bottom plate 3. The advantage of this design is that the first rib 4 can obtain better limiting and positioning effects, thereby achieving a close fit with the lower mold 2.

[0067] As a preferred solution of the present invention, the height of the first grid 7 is not greater than the height of the first feed port 9 .

[0068] As a preferred solution of the present invention, the height of the first feed port 9 is flush with the top of the second grid 10 .

[0069] As a preferred solution of the present invention, both the supporting plate 1 and the lower mold 2 are provided with a through hollow 22 .

[0070] As a preferred solution of the present invention, the first rib 4 is provided with a through hollow 22 .

[0071] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A base plate with a lower mold, characterized in that: It includes a supporting plate and a lower mold; the lower mold is arranged on the supporting plate and fixedly connected to the supporting plate; the top of the lower mold is wavy; and installation space is left between the four side edges of the lower mold and the four side edges of the supporting plate.

2. A kiln furniture, characterized in that: It comprises the base plate and the first rib as described in claim 1; the first rib is placed on the installation space of the support plate and surrounds the lower mold; the inner side of the first rib is in close contact with the outer side of the lower mold.

3. The kiln furniture according to claim 2, characterized in that: The outer side of the first rib is flush with the outer side of the supporting plate.

4. A fabric structure, characterized in that: The invention comprises the kiln furniture as claimed in claim 2, a first limit frame, a first grille, and a first material distribution device; the first limit frame is clamped on the kiln furniture, the lower part of which clamps the outer side of the first rib, and the upper part is provided with a first material feed port of the same size as the lower mold, and the first material feed port protrudes upward from the first rib; the first grille is placed in the kiln furniture; the first material distribution device distributes material along the top of the first grille.

5. The fabric structure according to claim 4, characterized in that: The material distribution structure also includes a second grid for secondary material distribution, a plurality of first forming rollers, and a second material distribution device; the second grid is placed in the kiln furniture, the bottom of the second grid is flat, and the top is provided with a plurality of first grooves; the first forming roller is placed in the first groove of the second grid; the second material distribution device is provided with a plurality of first arc-shaped notches; when distributing material, the first arc-shaped notches are stuck on the first forming roller, and the second material distribution device distributes material along the axial direction of the first forming roller, while the first forming roller is rotating.

6. The fabric structure according to claim 4, characterized in that: The lower portion of the first limiting frame clamps the first rib and the outer side of the bottom plate.

7. The fabric structure according to claim 4, characterized in that: The height of the first grid is not greater than the height of the first feed port.

8. The fabric structure according to claim 5, characterized in that: The first distribution device and the second distribution device adopt the same structure, including a hopper, a scraper, a gate, a first cylinder, and a second cylinder; a discharge port is provided at the bottom of the hopper; the scraper is vertically arranged on one side of the discharge port, and the gate is inclined on the other side of the discharge port; the first cylinder is arranged on one side of the hopper, and its driving end is connected to the scraper to drive the scraper to move up and down; the second cylinder is arranged at the bottom of the hopper, and its driving end is connected to the gate to drive the gate to close or open the discharge port; the difference between the first distribution device and the second distribution device is that the bottom of the scraper of the second distribution device is provided with a plurality of first arc-shaped notches.

9. A fabric structure, characterized in that: It comprises the kiln furniture as claimed in claim 2, a second limiting frame, a third grid, a second forming roller, and a third feeding device; the second limiting frame is clamped on the kiln furniture, the lower part of which clamps the outer side of the first rib, and the upper part is provided with a second feeding port of the same size as the lower mold, and the second feeding port protrudes upward from the first rib; the third grid is placed in the kiln furniture, the bottom of the third grid is flat, and the top is provided with a plurality of second grooves; the second forming roller is placed in the second groove of the third grid; the third feeding device is provided with a plurality of second arc-shaped notches; when feeding, the second arc-shaped notches are clamped on the second forming roller, and the third feeding device feeds along the axial direction of the second forming roller, and at the same time, the second forming roller is rotating.

10. A production line, characterized in that: It comprises an upper mold and the kiln furniture according to claim 2 or the material distribution structure according to claim 4 or the material distribution structure according to claim 5 or the material distribution structure according to claim 9; the upper mold is located above the kiln furniture and presses the material downward to form it after the material distribution is completed.

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