High-strength supporting plate for drying ceramic green body and production device thereof

Abstract

This invention discloses a high-strength pallet for drying ceramic blanks and its production apparatus. The high-strength pallet is a calcium silicate board with multiple layers of evenly distributed alkali-resistant glass fiber mesh embedded inside. The alkali-resistant glass fiber mesh has at least three layers per 12mm of high-strength pallet thickness, and the high-strength pallet has at least one ventilation hole. This invention uses calcium silicate board to make the pallet for drying ceramic blanks. Calcium silicate board is an inorganic porous structure board with certain water absorption and heat insulation properties. Even in humid environments, it remains unchanged and does not crack. By embedding multiple layers of evenly distributed alkali-resistant glass fiber mesh inside the calcium silicate board, the strength and toughness of the pallet are greatly improved, effectively preventing brittleness and extending its service life, thus saving ceramic production costs.

Description

Technical Field

[0001] This invention relates to the field of ceramic production technology, and in particular to a high-strength pallet for drying ceramic blanks and its production apparatus. Background Technology

[0002] After the ceramic blanks are formed, they need to be placed in a drying kiln for drying. The trays are the carriers that support the blanks during drying. Generally, the ceramic blanks are placed directly above the inner holes of the trays. Therefore, the trays must have the properties of absorbing water, allowing steam to pass through without deformation, and resisting heat dissipation without cracking. Currently, trays used for drying ceramic blanks are mostly made of materials such as MDF, aluminum alloy, plastic, and ordinary calcium silicate board. However, MDF is prone to water absorption and deformation, aluminum alloy does not absorb water but results in excessive heat concentration, plastic does not absorb water but is prone to aging and deformation, and ordinary calcium silicate board does not meet the strength requirements, is easily brittle, and has a short service life. To address these problems, it is necessary to develop a high-strength, high-toughness tray. Summary of the Invention

[0003] To address the problems of existing ceramic blank drying pallets, such as the tendency of MDF to absorb water and deform, aluminum alloy pallets being non-absorbent but resulting in excessive heat concentration, plastic pallets being non-absorbent but prone to aging and deformation, and ordinary calcium silicate boards failing to meet strength requirements, leading to brittleness and short service life, this invention provides a high-strength pallet for ceramic blank drying. By embedding at least three layers of evenly distributed alkali-resistant glass fiber mesh every 12mm thickness inside the calcium silicate board, the strength and toughness of the pallet are greatly improved, effectively preventing brittleness and extending the service life of the pallet, thus saving ceramic production costs.

[0004] To achieve the above objectives, the present invention provides a high-strength pallet for drying ceramic blanks, characterized in that: the high-strength pallet is a calcium silicate board with multiple layers of evenly distributed alkali-resistant glass fiber mesh embedded inside, wherein the alkali-resistant glass fiber mesh has at least 3 layers per 12mm of high-strength pallet thickness, and the high-strength pallet has at least one ventilation hole.

[0005] Furthermore, the outer surface of the alkali-resistant glass fiber mesh is provided with an alkali-resistant resin adhesive layer.

[0006] Furthermore, the alkali-resistant resin adhesive layer is made of alkali-resistant acrylic emulsion adhesive or epoxy-modified styrene-acrylic emulsion adhesive.

[0007] The alkali-resistant resin adhesive layer further enhances the alkali corrosion resistance of the alkali-resistant glass fiber mesh.

[0008] Furthermore, the mesh size of the alkali-resistant glass fiber mesh is set to 6mm×6mm~10mm, and the unit area mass is set to 70~80g / m². 2 .

[0009] Furthermore, the pallet is configured as a circular pallet with an outer diameter of φ340mm, an inner diameter of φ145mm, and a height of 8.5mm, and at least three layers of alkali-resistant glass fiber mesh are embedded inside.

[0010] Furthermore, the tray is a rectangular tray with a vent hole in the middle. The rectangular tray has an outer dimension of 455mm × 345mm, an inner diameter of 110mm for the vent hole, a thickness of 12mm, and at least three layers of alkali-resistant glass fiber mesh embedded inside.

[0011] The present invention also provides a fully automatic cutting and laying device for high-strength pallets used in the production of ceramic blanks, comprising a slurry board making machine, characterized in that: it further comprises a fully automatic cutting machine, a roller-type automatic feeder and a platform, wherein the platform is located directly above the felt of the slurry board making machine, the roller-type automatic feeder is located behind the platform and is used to feed the alkali-resistant glass fiber mesh roll to the fully automatic cutting machine, and the fully automatic cutting machine is located in front of the roller-type automatic feeder on the platform and is used to cut the alkali-resistant glass fiber mesh so that the cut alkali-resistant glass fiber mesh falls exactly onto the thin slurry laid flat on the felt.

[0012] Furthermore, the fully automatic cutting machine includes a PLC control system for automatically controlling the feeding speed of the roller-type automatic feeder and the time interval for cutting the alkali-resistant glass fiber mesh, so that at least 3 layers of evenly distributed alkali-resistant glass fiber mesh are embedded inside the calcium silicate board for every 12mm thickness.

[0013] During operation, the PLC control system controls the feeding speed of the roller-type automatic feeder to match the walking speed of the felt. When cutting the alkali-resistant glass fiber mesh, it controls the linkage between the cutting knife and the single-layer length positioner of the calcium silicate blank on the flow plate making machine, which can ensure that the laying position of each layer of alkali-resistant glass fiber mesh is accurately set in the center of the single-layer calcium silicate blank.

[0014] Furthermore, the platform includes a panel, a panel frame, legs, a left side railing, a rear side railing, a right side railing, and fixed ear plates. The panel frame is a square frame structure welded from several channel steels. The panel is placed on the panel frame. The four legs are respectively located at the four corners of the bottom surface of the panel frame. The left side railing, rear side railing, and right side railing are respectively arranged around the left side, rear side, and right side of the panel frame. The left side railing and the rear side railing are connected as a whole structure. An entrance for operators is provided between the rear end of the right side railing and the rear side railing. There are four fixed ear plates, respectively located at the four corners of the upper plane of the panel frame. The four legs are respectively fixedly connected to the outer plates of the front and rear frames of the flow plate making machine.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention uses calcium silicate board to make a tray for drying ceramic clay blanks. Calcium silicate board is an inorganic porous structure board with certain water absorption and heat insulation properties. It can remain unchanged and not crack even in a humid environment. By embedding at least 3 layers of alkali-resistant glass fiber mesh every 12mm thickness inside the calcium silicate board, the strength and toughness of the tray are greatly improved, effectively preventing the tray from cracking, increasing the service life of the tray, and saving ceramic production costs. 2. This invention achieves the embedding of multiple layers of evenly distributed alkali-resistant glass fiber mesh inside the calcium silicate board by setting an alkali-resistant glass fiber mesh cutting and laying device directly above the felt of the sheet in the calcium silicate board production machine. The alkali-resistant glass fiber mesh is precisely laid in the center of the calcium silicate board, which effectively prevents misalignment of the alkali-resistant glass fiber mesh and improves the yield rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the annular support plate structure according to Embodiment 1 of the present invention; Figure 2 This is a top view schematic diagram of the alkali-resistant glass fiber mesh embedded in the annular support plate according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the square tray structure in Embodiment 2 of the present invention; Figure 4 This is a top view schematic diagram of the alkali-resistant glass fiber mesh embedded in the square tray of Embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the suspended billet support structure in Embodiment 3 of the present invention. Figure 6 This is a top view schematic diagram of the alkali-resistant glass fiber mesh embedded in the suspended blank support plate according to Embodiment 3 of the present invention; Figure 7 This is a schematic diagram of the fully automatic cutting and laying device for high-strength pallet production according to Embodiment 4 of the present invention; Figure 8 This is a schematic diagram of the platform structure in Embodiment 4 of the present invention.

[0017] In the diagram: 1. Forming machine, 11. Felt, 12. Roller press, 2. Platform, 21. Panel, 22. Panel frame, 23. Support leg, 24. Left side railing, 25. Rear side railing, 26. Right side railing, 27. Entrance, 28. Fixed ear plate, 3. Fully automatic cutting machine, 4. Roller automatic feeder, 5. Alkali-resistant fiberglass mesh roll, 6. Circular pallet, 61. Alkali-resistant fiberglass mesh, 7. Square pallet, 701. Ventilation hole, 71. Alkali-resistant fiberglass mesh, 8. Suspended blank pallet, 81. Alkali-resistant fiberglass air. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0019] like Figure 1 , Figure 2 As shown, the high-strength pallet is a circular pallet 6 with an outer diameter of φ340mm, an inner diameter of φ145mm, and a height of 8.5mm. It is made of calcium silicate board with three layers of evenly distributed alkali-resistant glass fiber mesh 61 embedded inside.

[0020] Furthermore, the outer surface of the alkali-resistant glass fiber mesh 6 is provided with an alkali-resistant resin adhesive layer.

[0021] Furthermore, the alkali-resistant resin adhesive layer uses alkali-resistant acrylic emulsion adhesive or epoxy-modified styrene-acrylic emulsion adhesive.

[0022] The alkali-resistant resin adhesive layer further enhances the alkali-resistant glass fiber mesh 6's resistance to alkali corrosion.

[0023] Furthermore, the mesh size of the alkali-resistant glass fiber mesh is set to 6mm × 10mm, and the unit area mass is set to 70g / m². 2 . Example

[0024] like Figure 3 , Figure 4 As shown, the high-strength pallet is a rectangular pallet 7 with a ventilation hole 701 in the middle. The rectangular pallet 7 has an outer dimension of 455mm×345mm, an inner diameter of φ110mm for the ventilation hole 701, and a thickness of 12mm. It is made of calcium silicate board with four layers of evenly distributed alkali-resistant glass fiber mesh 71 embedded inside.

[0025] Furthermore, the outer surface of the alkali-resistant glass fiber mesh 7 is provided with an alkali-resistant resin adhesive layer.

[0026] Furthermore, the alkali-resistant resin adhesive layer uses alkali-resistant acrylic emulsion adhesive or epoxy-modified styrene-acrylic emulsion adhesive.

[0027] The alkali-resistant resin adhesive layer further enhances the alkali corrosion resistance of the alkali-resistant glass fiber mesh 7.

[0028] Furthermore, the mesh size of the alkali-resistant glass fiber mesh 7 is set to 6mm × 8mm, and the unit area mass is set to 75g / m². 2 . Example

[0029] like Figure 5 , Figure 6 As shown, the high-strength pallet is a suspended pallet 8. The maximum outer diameter of the suspended pallet 8 is set to φ485mm, the total height is set to 44mm, and a circular boss with a diameter of φ150mm is provided in the middle. The circular boss is 29mm high and has a vent hole 801 in the middle. There are four vent holes 801 evenly distributed in a circle on the stepped surface. The inner diameter of the vent holes 801 is set to φ50mm. The suspended pallet 8 is made of calcium silicate board with 11 layers of alkali-resistant glass fiber mesh 81 embedded inside.

[0030] Furthermore, the outer surface of the alkali-resistant glass fiber mesh 8 is provided with an alkali-resistant resin adhesive layer.

[0031] Furthermore, the alkali-resistant resin adhesive layer uses alkali-resistant acrylic emulsion adhesive or epoxy-modified styrene-acrylic emulsion adhesive.

[0032] The alkali-resistant resin adhesive layer further enhances the alkali-resistant glass fiber mesh 8's resistance to alkali corrosion.

[0033] Furthermore, the mesh size of the alkali-resistant glass fiber mesh is set to 6mm × 10mm, and the unit area mass is set to 70g / m². 2 . Example

[0034] like Figure 7 , Figure 8 As shown, the fully automatic cutting and laying device for high-strength pallet production of ceramic blanks in Embodiments 1 and 2 includes a slurry board making machine 1, a fully automatic cutting machine 3, a roller-type automatic feeder 4, and a platform 2. The platform 2 is located directly above the felt 11 of the slurry board making machine 1. The roller-type automatic feeder 4 is located behind the platform 2 and is used to feed the alkali-resistant glass fiber mesh roll 5 to the fully automatic cutting machine 3. The fully automatic cutting machine 3 is located on the platform 2 in front of the roller-type automatic feeder 4 and is used to cut the alkali-resistant glass fiber mesh so that the cut alkali-resistant glass fiber mesh falls exactly on the thin slurry laid flat on the felt 11.

[0035] The alkali-resistant glass fiber mesh will be interlocked with the slurry. When the slurry passes through the roller pressing cylinder 12 of the slurry forming machine 1, it will be wrapped around the outer surface of the roller pressing cylinder. After multiple layers of winding and pressing, it is then cut into a standard 1220mm×2440mm board blank. After stacking, pre-curing, demolding, autoclaving (temperature 190℃, 1.28MPa, 24 hours), and drying, a calcium silicate board with at least 3 layers of alkali-resistant glass fiber mesh embedded in every 12mm can be obtained.

[0036] Examples 1, 2, and 3 are calcium silicate boards produced using the apparatus of Example 4, which are then cut, sanded, and edge-ground to form the product.

[0037] Furthermore, the fully automatic cutting machine 3 includes a PLC control system for automatically controlling the feeding speed of the roller-type automatic feeder 4 and the time interval for cutting the alkali-resistant glass fiber mesh, so that at least 3 layers of evenly distributed alkali-resistant glass fiber mesh are embedded inside the calcium silicate board every 12mm.

[0038] During operation, the PLC control system controls the feeding speed of the roller-type automatic feeder 4 to match the walking speed of the felt 1. When cutting the alkali-resistant glass fiber mesh, it controls the cutting knife to be linked with the single-layer length positioner of the calcium silicate blank on the slurry board making machine. This ensures that the laying position of each layer of alkali-resistant glass fiber mesh is accurately set in the center of the single-layer calcium silicate blank, which can effectively prevent the alkali-resistant glass fiber mesh from being mislaid and improve the yield rate.

[0039] Furthermore, platform 2 includes a panel 21, a panel frame 22, legs 23, a left side railing 24, a rear side railing 25, a right side railing 26, and fixed ear plates 28. The panel frame 22 is a square frame structure welded from several channel steels. The panel 21 is located on the upper plane of the panel frame 22. There are four legs 23 located at the four corners of the bottom surface of the panel frame 22. The left side railing 24, the rear side railing 25, and the right side railing 26 are respectively arranged around the left side, the rear side, and the right side of the panel frame 22. The left side railing 24 and the rear side railing 25 are connected as a whole structure. There is an entrance 27 for operators to enter between the rear end of the right side railing 26 and the rear side railing 25. There are four fixed ear plates 28 located at the four corners of the upper plane of the panel frame 22. The four legs 23 are respectively fixedly connected to the outer plates of the front and rear frames of the flow plate making machine 1. The distance between the upper plane of the panel 21 and the upper plane of the felt 11 is set to 100-120mm.

[0040] Performance testing: Examples 1, 2, and 3, and Comparative Examples 1, 2, and 3 were tested for water absorption, swelling rate, flexural strength, and impact strength, respectively, according to GB / T7019-2014. The test data are shown in Table 1. Comparative Examples 1, 2, and 3 have the same external dimensions as Examples 1, 2, and 3, the difference being that they were prepared using calcium silicate boards without internally embedded alkali-resistant glass fiber mesh.

[0041] Table 1

[0042] As can be seen from the test data in Table 1, the water absorption rate and swelling rate of Examples 1, 2, and 3 are similar to those of Comparative Examples 1, 2, and 3. However, the flexural strength of Examples 1, 2, and 3 is 30% higher than that of Comparative Examples 1, 2, and 3, and the impact strength of Examples 1 and 2 is 27.3% higher than that of Comparative Examples 1 and 2.

[0043] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and substitutions without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A high-strength pallet for drying ceramic blanks, characterized in that: The high-strength pallet is a calcium silicate board with multiple layers of evenly distributed alkali-resistant glass fiber mesh embedded inside. The alkali-resistant glass fiber mesh has at least 3 layers per 12mm of high-strength pallet thickness, and the high-strength pallet has at least one vent hole.

2. The high-strength pallet for drying ceramic blanks according to claim 1, characterized in that: The outer surface of the alkali-resistant glass fiber mesh is provided with an alkali-resistant resin adhesive layer.

3. The high-strength pallet for drying ceramic blanks according to claim 1, characterized in that: The alkali-resistant resin adhesive layer is made of alkali-resistant acrylic emulsion or epoxy-modified styrene-acrylic emulsion.

4. The high-strength pallet for drying ceramic blanks according to claim 1, characterized in that: The alkali-resistant glass fiber net mesh size is set to 6mmx6mm~10mm, and the unit area mass is set to 70~80g / m 2 .

5. A high-strength pallet for drying ceramic blanks according to claim 1, characterized in that: The pallet is a circular pallet with an outer diameter of φ340mm, an inner diameter of φ145mm, and a height of 8.5mm. At least three layers of alkali-resistant glass fiber mesh are embedded inside.

6. A high-strength pallet for drying ceramic blanks according to claim 1, characterized in that: The tray is a rectangular tray with a vent hole in the middle. The rectangular tray has an outer dimension of 455mm × 345mm, an inner diameter of 110mm for the vent hole, a thickness of 12mm, and at least 3 layers of alkali-resistant glass fiber mesh embedded inside.

7. A fully automatic cutting and laying device for high-strength pallet production for ceramic blank drying as described in any one of claims 1 to 6, comprising a slurry board making machine, characterized in that: It also includes a fully automatic cutting machine, a roller-type automatic feeder, and a platform. The platform is located directly above the felt of the sheet forming machine. The roller-type automatic feeder is located behind the platform and is used to feed the alkali-resistant glass fiber mesh roll to the fully automatic cutting machine. The fully automatic cutting machine is located in front of the roller-type automatic feeder on the platform and is used to cut the alkali-resistant glass fiber mesh so that the cut alkali-resistant glass fiber mesh falls exactly onto the thin sheet of slurry spread flat on the felt.

8. The fully automatic cutting and laying device for high-strength pallet production for ceramic blank drying according to claim 7, characterized in that: The fully automatic cutting machine includes a PLC control system, which automatically controls the feeding speed of the roller-type automatic feeder and the time interval for cutting the alkali-resistant glass fiber mesh, so that at least 3 layers of evenly distributed alkali-resistant glass fiber mesh are embedded inside the calcium silicate board for every 12mm thickness.

9. The fully automatic cutting and laying device for high-strength pallet production for ceramic blank drying according to claim 7, characterized in that: The platform includes a panel, a panel frame, legs, a left side railing, a rear side railing, a right side railing, and fixed ear plates. The panel frame is a square frame structure welded from several channel steels. The panel is placed on the panel frame. Four legs are respectively located at the four corners of the bottom surface of the panel frame. The left side railing, rear side railing, and right side railing are respectively arranged around the left side, rear side, and right side of the panel frame. The left side railing and the rear side railing are connected as a whole structure. An entrance for operators is provided between the rear end of the right side railing and the rear side railing. Four fixed ear plates are respectively located at the four corners of the upper plane of the panel frame. The four legs are respectively fixedly connected to the outer plates of the front and rear frames of the flow plate making machine.

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