A roll forming device and a roll forming method for ceramic textures

Abstract

This invention discloses a roll forming device for ceramic textures, comprising an upper pressure roller assembly and a lower pressure roller assembly. The upper and lower pressure roller assemblies are distributed opposite to each other, and an embossing channel is formed between them. An elastic roll forming pattern element is wound around the upper steel strip of the upper pressure roller assembly and / or the lower steel strip of the lower pressure roller assembly. The surface of the roll forming pattern element is provided with embossed protrusions. The roll forming pattern element is used to roll form a textured ceramic slab as ceramic powder passes through the embossing channel along the conveying direction. Simultaneously, a roll forming method using this roll forming device is also disclosed, solving the problem that existing roll forming devices cannot form textures on the surface of the brick blank.

Description

Technical Field

[0001] This invention relates to the field of roll forming machines, and more particularly to a roll forming equipment and method for ceramic texture forming. Background Technology

[0002] Roll forming is a process that utilizes the plastic movement characteristics of materials to form various complex parts using the principle of rolling extrusion. During operation, the moving rollers of the roller press are driven by an electric motor, and loose material is conveyed to the gap between the two rollers, where it is crushed and compressed to form a dense material bed. Under material layer crushing conditions, pure pressure crushing consumes significantly less energy than pure shearing and impact crushing. The roller press utilizes pure pressure during the material layer crushing process, achieving the goal of improving efficiency and saving energy.

[0003] As disclosed in CN115922879A, published on April 7, 2023, the existing roll forming apparatus and method include a conveying assembly for conveying powder along a conveying direction; a pressing assembly including a first forming roller and a second forming roller, which are spaced apart in the vertical direction and together form a compaction space; the compaction space is used to receive the powder on the conveying assembly and compact the powder to form a brick blank; and a limiting plate, which is arranged sequentially with the first forming roller and the limiting plate in the conveying direction, and the limiting plate is used to abut against the brick blank to limit the expansion of the brick blank surface.

[0004] The existing roll forming device can prevent the surface of the brick blank from expanding and gradually release the internal stress of the brick blank, reducing the occurrence of cracks and thus ensuring the quality of the brick blank. However, because the surface of the compaction belt is smooth, it is impossible to form patterns on the surface of the brick blank, thus failing to meet the requirement of forming rich decorative textures on the surface of ceramic slabs. At the same time, the lack of texture on the surface of the ceramic slabs also weakens the adhesion of the ceramic slabs during installation. Summary of the Invention

[0005] In order to overcome at least one of the defects described in the prior art, the present invention provides a roll forming equipment and a roll forming method for ceramic textures, which solves the problem that existing roll forming devices cannot form textures on the surface of brick blanks.

[0006] The technical solution adopted by this invention to solve its problem is:

[0007] A roll forming apparatus for ceramic textures, comprising:

[0008] Upper pressure roller assembly;

[0009] The lower pressure roller assembly is provided with the upper pressure roller assembly and the lower pressure roller assembly being distributed opposite to each other, and the upper pressure roller assembly and the lower pressure roller assembly being spaced apart to form an embossing channel. The upper steel strip of the upper pressure roller assembly and / or the lower steel strip of the lower pressure roller assembly are wound with a roll-formed pattern with elastic properties, and the surface of the roll-formed pattern is provided with embossed protrusions.

[0010] The roller-pressed textured part is used to roll-press ceramic powder into textured ceramic slabs as it passes through the embossing channel along the conveying direction.

[0011] In some embodiments of the present invention, the perimeter of the roll-formed part is 0% to 10% shorter than the perimeter of the upper steel strip, or the perimeter of the roll-formed part is 0% to 10% shorter than the perimeter of the lower steel strip.

[0012] In some embodiments of the present invention, the upper pressure roller assembly includes an upper forming pressure roller and an upper power roller assembly, wherein the upper forming pressure roller and the upper power roller assembly cooperate to tension the upper steel strip;

[0013] The lower pressure roller assembly includes a lower forming pressure roller and a lower power roller assembly. The lower forming pressure roller and the lower power roller assembly cooperate to tension the lower steel strip. The upper forming pressure roller is arranged opposite to the lower forming pressure roller.

[0014] In some embodiments of the present invention, the upper power roller assembly includes a first driving roller, a first driven roller and a first tensioning cylinder, the upper forming pressure roller is disposed between the first driving roller and the first driven roller, and the movable telescopic end of the first tensioning cylinder is connected to the first driven roller;

[0015] The lower power roller assembly includes a second driving roller, a second driven roller, and a second tensioning cylinder. The lower forming pressure roller is located between the second driving roller and the second driven roller, and the movable telescopic end of the second tensioning cylinder is connected to the second driven roller.

[0016] In some embodiments of the present invention, the embossed pattern is provided with a lateral constraint member, which extends along the length direction of the embossed pattern and has elastic properties, so that the lateral constraint member is squeezed and deformed when passing through the embossing channel.

[0017] In some embodiments of the present invention, the lateral constraint members are provided on both opposite sides of the roller-formed part in the conveying direction. One of the roller-formed part and the lateral constraint members is provided with a positioning protrusion, and the other of the roller-formed part and the lateral constraint members is provided with an adjusting groove for engaging the positioning protrusion. The positioning protrusion and the adjusting groove cooperate to adjust the distance between the two lateral constraint members.

[0018] In some embodiments of the present invention, the roll-formed part and the lateral constraint part are integrally formed.

[0019] In some embodiments of the present invention, the roll forming equipment for ceramic textures further includes a cleaning device for removing residual ceramic powder from the surface of the roll-formed part.

[0020] In some embodiments of the present invention, the upper steel strip between the upper forming roller and the first driven roller is formed as a feeding guide section, and the lower steel strip between the lower forming roller and the second driven roller is formed as a feeding conveying section, wherein the feeding guide section is inclined to the feeding conveying section.

[0021] The present invention also discloses a roll forming method applied to the above-mentioned roll forming equipment, comprising the following steps:

[0022] Step 1: Quantitatively feed ceramic powder to the lower pressure roller assembly;

[0023] Step 2: Convey the ceramic powder along the conveying direction to the embossing channel;

[0024] Step 3: Through the combined action of the upper pressure roller assembly, the lower pressure roller assembly, and the roller pressing texture component, the ceramic powder is compacted and embossed into a textured ceramic slab.

[0025] In summary, the roll forming equipment and method for ceramic textures provided by this invention have the following technical effects:

[0026] By winding elastically textured roller-pressed components around the upper steel strip of the upper pressure roller assembly and / or the lower steel strip of the lower pressure roller assembly, the original structural strength of the upper and lower steel strips is maintained, effectively ensuring the quality of the formed ceramic slab. Simultaneously, the use of these roller-pressed components to create patterns on the ceramic slab solves the problem of existing roll forming devices being unable to create patterns on the surface of the brick blank (i.e., the ceramic slab in this invention). This not only improves the aesthetics of the ceramic slab but also enhances its adhesion during installation. Furthermore, the assembly of the roller-pressed components is very convenient, facilitating rapid disassembly and assembly of the roll forming equipment and subsequent production. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the roll forming equipment for ceramic texture according to the present invention;

[0028] Figure 2 This is a first structural diagram of a roll forming device for ceramic texture according to the present invention;

[0029] Figure 3 for Figure 2A magnified view of a portion of point A in the middle;

[0030] Figure 4 for Figure 2 Enlarged cross-sectional view at point B;

[0031] Figure 5 This is a second structural diagram of a roll forming device for ceramic textures according to the present invention.

[0032] Icons: 1-Upper pressure roller assembly, 11-Upper steel strip, 12-Upper forming pressure roller, 13-First driving roller, 14-First driven roller, 15-First tension cylinder, 2-Lower pressure roller assembly, 21-Lower steel strip, 22-Lower forming pressure roller, 23-Second driving roller, 24-Second driven roller, 25-Second tension cylinder, 3-Embossing channel, 41-Roller pattern component, 5-Ceramic powder, 6-Lateral constraint component, 7-Cleaning device. Detailed Implementation

[0033] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0034] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0036] First Embodiment

[0037] Roll forming of ceramic tiles / slabs is still a relatively new forming method in the field of ceramic tile / slab forming. Through experimental testing and analysis of the roll forming process, it is known that parameters such as the diameter, rotational speed, structural strength, reduction, and plasticity of the ceramic powder all have varying degrees of influence on the forming quality of the ceramic tile blank. These influences include: the flatness of the formed blank surface (i.e., whether there are obvious uneven ripples); and the quality of the formed ceramic powder (i.e., whether the ceramic powder deforms or cracks after roll forming).

[0038] Therefore, the present invention aims to improve the existing roll forming apparatus so that, without changing or slightly adjusting parameters such as the diameter, rotation speed, structural strength, reduction amount, and plasticity of the ceramic powder during roll forming, the desired texture pattern can be generated on the surface of the formed ceramic tile / ceramic slab. In this way, the generation of defective ceramic tiles / ceramic slabs is minimized, the quality of ceramic tile / ceramic slab products is effectively guaranteed, and the production cost of roll forming ceramic tiles / ceramic slabs (hereinafter collectively referred to as ceramic slabs) is reduced.

[0039] Please refer to the specific details. Figure 1 As shown, the present invention discloses a roll forming equipment for ceramic textures, including an upper pressure roller assembly 1 and a lower pressure roller assembly 2. The upper pressure roller assembly 1 and the lower pressure roller assembly 2 are distributed opposite to each other, and the upper pressure roller assembly 1 and the lower pressure roller assembly 2 form an embossing channel 3 at intervals.

[0040] At this time, as the ceramic powder 5 passes through the embossing channel 3, the cooperation of the upper steel belt 11 of the upper pressure roller assembly 1 and the lower steel belt 21 of the lower pressure roller assembly 2 compacts and evens out the ceramic powder 5, forming a ceramic blank with good surface flatness and relatively small and uniform internal residual stress.

[0041] The core solution in this example lies in forming textured ceramic slabs on the surface of smooth, flat ceramic blanks. For details, please refer to... Figure 2 and Figure 3 As shown, the upper steel strip 11 of the upper pressure roller assembly 1 is wound with a roll-pressed textured part 41 with elastic properties. That is, when the roll-pressed textured part 41 is sleeved on the upper steel strip 11, the roll-pressed textured part 41 will extend along the length direction of the upper steel strip 11, and the roll-pressed textured part 41 is connected end to end to form a closed loop structure. Furthermore, the surface of the roll-pressed textured part 41 is provided with embossed protrusions. In this way, during the continuous operation of the roll forming equipment, the roll-pressed textured part 41 can continuously roll-press the ceramic powder 5 along the conveying direction through the embossing channel 3, and the embossing protrusions of the roll-pressed textured part 41 can continuously roll-press the ceramic powder 5 into a textured ceramic blank.

[0042] In this embodiment, it is only necessary to assemble the roll-formed pattern part 41 onto the upper steel strip 11 of the upper pressure roller assembly 1. There is no need to process the upper steel strip 11 or improve the upper pressure roller assembly 1 or the lower pressure roller assembly 2. Therefore, the structural strength of the upper pressure roller assembly 1 and the lower pressure roller assembly 2 is guaranteed, and there is no need to adjust the process parameters of the roll forming ceramic slab, thus minimizing the cost of research and development and production.

[0043] When the texture of the ceramic slab needs to be changed according to design or requirements, it is only necessary to remove the roller-pressed texture part 41 from the upper steel strip 11 of the upper pressure roller assembly 1 and replace it with another roller-pressed texture part 41. The assembly and replacement are convenient, which is conducive to the efficient production of ceramic slabs and reduces the difficulty of production.

[0044] It should be noted that, in addition to assembling the roller-textured part 41 onto the upper steel strip 11 of the upper pressure roller assembly 1 as described above, the roller-textured part 41 can also be assembled onto the lower steel strip 21 of the lower pressure roller assembly 2, or, according to... Figure 5 As shown, the upper steel strip 11 of the upper pressure roller assembly 1 and the lower steel strip 21 of the lower pressure roller assembly 2 are both equipped with roller-pressed textured parts 41.

[0045] In the above, please refer to the specific details. Figure 2 and Figure 5 As shown, the upper pressure roller assembly 1 includes an upper forming pressure roller 12 and an upper power roller assembly. The upper forming pressure roller 12 and the upper power roller assembly cooperate to tension the upper steel strip 11. That is, the upper steel strip 11 resists the upper forming pressure roller 12 and the upper power roller assembly, so that the upper steel strip 11 remains in a taut state during the rolling process.

[0046] Similarly, the aforementioned lower pressure roller assembly 2 includes a lower forming pressure roller 22 and a lower power roller assembly. The lower forming pressure roller 22 and the lower power roller assembly cooperate to tension the lower steel belt 21. That is, the lower steel belt 21 abuts against the lower forming pressure roller 22 and the lower power roller assembly, so that the lower steel belt 21 remains in a taut state during the rolling process. Thus, when the roll forming pattern part 41 is assembled on the upper steel belt 11 of the upper pressure roller assembly 1, the roll forming pattern part 41 and the upper steel belt 11 maintain uniform contact. The upper steel belt 11 can smoothly drive the roll forming pattern part 41 to move, thereby ensuring that the roll forming pattern part 41 can uniformly extrude the ceramic blank. At the same time, when the rolled ceramic blank is conveyed and moved horizontally in the embossing channel 3, the roll forming pattern part 41 can also uniformly and smoothly extrude and contact the ceramic blank, avoiding the problem of unclear patterns caused by a small amount of deformation recovery of the ceramic blank with a certain plasticity after roll forming.

[0047] When the roll-formed part 41 is assembled on the lower steel belt 21 of the lower power roller assembly, the roll-formed part 41 and the lower steel belt 21 maintain uniform contact. The lower steel belt 21 can smoothly drive the roll-formed part 41 to move, which can not only smoothly transport ceramic powder 5, but also effectively ensure that the roll-formed part 41 uniformly extrudes the ceramic blank. At the same time, when the rolled ceramic blank is transported and moved in the embossing channel 3, the roll-formed part 41 can also uniformly and smoothly extrude and contact the ceramic blank, avoiding the problem of unclear texture caused by a small deformation recovery of the ceramic blank with a certain plasticity after roll forming.

[0048] Furthermore, since the upper forming roller 12 and the lower forming roller 22 are arranged opposite each other, when the ceramic powder 5 passes between the upper forming roller 12 and the lower forming roller 22, the ceramic powder 5 is squeezed between itself and the roller-pressed textured part 41. This not only compacts the ceramic powder 5 into a ceramic slab, but also embosses a relatively clear texture on the ceramic slab.

[0049] As a preferred embodiment, please refer to the following for details. Figure 2 and Figure 5 As shown, the above-mentioned upper power roller assembly includes a first active roller 13, a first driven roller 14 and a first tensioning cylinder 15. The upper forming pressure roller 12 is disposed between the first active roller 13 and the first driven roller 14. The movable telescopic end of the first tensioning cylinder 15 is connected to the first driven roller 14. Here, the first tensioning cylinder 15 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0050] Thus, it is assumed that the roller-textured part 41 is assembled on the upper steel strip 11. When assembling and disassembling the upper steel strip 11 and the roller-textured part 41, the first tension cylinder 15 can be controlled to be in a compressed state, so that the upper steel strip 11 and the upper power roller assembly, as well as the upper steel strip 11 and the roller-textured part 41, are in a relaxed state. This facilitates the assembly of the upper steel strip 11 and the roller-textured part 41 to the upper power roller assembly, or facilitates the removal of the upper steel strip 11 and the roller-textured part 41 from the upper power roller assembly. When the upper steel strip 11 and the roller-textured part 41 are placed on the upper power roller assembly, the first tension cylinder 15 can be controlled to be in an extended state until the upper steel strip 11 and the roller-textured part 41 are in a tensioned state.

[0051] Therefore, the first tensioning cylinder 15 not only automates the assembly and disassembly of the upper steel belt 11 and the roll-formed pattern component 41, making them convenient to use, but also ensures that the upper steel belt 11 is at the optimal tension and that the roll-formed pattern component 41 is evenly and firmly pressed against the upper steel belt 11, preventing slippage between them during the rolling process. This effectively guarantees the quality of the finished ceramic slab with the pattern.

[0052] In addition, the aforementioned lower power roller assembly includes a second driving roller 23, a second driven roller 24, and a second tensioning cylinder 25. The lower forming pressure roller 22 is disposed between the second driving roller 23 and the second driven roller 24. The movable telescopic end of the second tensioning cylinder 25 is connected to the second driven roller 24. Here, the second tensioning cylinder 25 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0053] Thus, assuming the rolled texture component 41 is assembled onto the lower steel strip 21, when assembling or disassembling the lower steel strip 21 and the rolled texture component 41, the second tension cylinder 25 can be controlled to be in a compressed state, so that the lower steel strip 21 and the lower power roller assembly, as well as the lower steel strip 21 and the rolled texture component 41, are in a relaxed state. This facilitates the assembly of the lower steel strip 21 and the rolled texture component 41 onto the lower power roller assembly, or facilitates the removal of the lower steel strip 21 and the rolled texture component 41 from the lower power roller assembly. When the lower steel strip 21 and the rolled texture component 41 are placed on the lower power roller assembly, the second tension cylinder 25 can be controlled to be in an extended state until the lower steel strip 21 and the rolled texture component 41 are in a tensioned state.

[0054] Therefore, the second tensioning cylinder 25 not only automates the assembly and disassembly of the lower steel strip 21 and the roll-formed pattern component 41, making them convenient to use, but also ensures that the lower steel strip 21 is at the optimal tension. Furthermore, it guarantees that the roll-formed pattern component 41 is evenly and firmly pressed against the lower steel strip 21, preventing slippage between them during the rolling process. This effectively ensures the quality of the finished ceramic slab with the pattern.

[0055] Of course, in addition to ensuring that the roll-pressed textured part 41 does not slip through the first tensioning cylinder 15 and the second tensioning cylinder 25, an anti-slip layer can be formed on the surfaces of the upper steel strip 11 and the lower steel strip 21. This anti-slip layer can be a paint layer or an adhesive layer, etc. Furthermore, the inventors have provided another preferred solution:

[0056] When the roll-textured part 41 is assembled onto the upper steel strip 11, the perimeter of the roll-textured part 41 is 0% to 10% shorter than the perimeter of the upper steel strip 11; or,

[0057] When the roll-formed part 41 is assembled on the lower steel strip 21, the perimeter of the roll-formed part 41 is 0% to 10% shorter than the perimeter of the lower steel strip 21.

[0058] Thus, when the circumference of the roller-formed part 41 is equal to the circumference of the upper steel strip 11 or the lower steel strip 21, since the roller-formed part 41 is wrapped around the outside of the upper steel strip 11 and / or the lower steel strip 21, when the upper steel strip 11 and / or the lower steel strip 21 are in a tensioned state, the roller-formed part 41 is also in a stretched deformation state. At this time, the roller-formed part 41 will abut against and press against the upper steel strip 11 and / or the lower steel strip 21. That is, in conjunction with the first tensioning cylinder 15 and the second tensioning cylinder 25, the friction between the roller-formed part 41 and the upper steel strip 11 and between the roller-formed part 41 and the lower steel strip 21 is effectively increased, thereby effectively preventing the upper steel strip 11 and / or the lower steel strip 21 from slipping with the roller-formed part 41 during the rolling process.

[0059] Furthermore, when the roll-formed pattern part 41 is assembled onto the upper steel strip 11, the circumference of the roll-formed pattern part 41 can be 0% to 10% shorter than the circumference of the upper steel strip 11. Within this range, the extrusion pressure between the upper steel strip 11 and the roll-formed pattern part 41 is effectively increased, thereby increasing the friction between them and effectively preventing slippage during the roll forming process. Conversely, when the circumference of the roll-formed pattern part 41 is longer than that of the upper steel strip 11, the friction between them is insufficient, making slippage more likely during the roll forming process and affecting the pattern effect. When the circumference of the roll-formed part 41 is more than 10% shorter than the circumference of the upper steel strip 11, the roll-formed part 41 is prone to overstretching and cracking or breaking when the upper steel strip 11 is under tension.

[0060] Similarly, when the roll-formed pattern component 41 is assembled onto the lower steel strip 21, the circumference of the roll-formed pattern component 41 can be 0% to 10% shorter than the circumference of the lower steel strip 21. Within this range, the friction between the lower steel strip 21 and the roll-formed pattern component 41 is effectively increased, significantly preventing slippage during the roll forming process. Conversely, when the circumference of the roll-formed pattern component 41 is longer than that of the lower steel strip 21, the friction between them is insufficient, making slippage more likely during roll forming and affecting the pattern's appearance. Furthermore, when the circumference of the roll-formed pattern component 41 is more than 10% shorter than that of the lower steel strip 21, the roll-formed pattern component 41 is prone to overstretching, leading to cracks or breakage when the lower steel strip 21 is under tension.

[0061] As a preferred embodiment, please refer to the following for details. Figure 1 , Figure 2 and Figure 5 As shown, the roll forming equipment also includes a cleaning device 7, which is used to remove residual ceramic powder 5 from the surface of the roll-formed part 41. Specifically, the cleaning device 7 can be a cleaning brush assembly. The cleaning brush assembly is fixed in place, and the relative movement between the cleaning brush assembly and the roll-formed part 41 achieves the purpose of cleaning the surface of the roll-formed part 41. The cleaning device 7 can also be a motor equipped with a cleaning brush. The motor provides power to drive the cleaning brush to rotate, which also achieves the purpose of cleaning the surface of the roll-formed part 41.

[0062] It should be noted that the number of cleaning devices 7 can be one, but it can also be two, three, four, five, etc. Furthermore, the installation position of the cleaning devices 7 can be adjusted according to the structure of the roll forming equipment and the structure of the cleaning devices 7, and is not limited to the position shown in the figure.

[0063] As a preferred embodiment, please refer to the following for details. Figure 1 , Figure 2 and Figure 5 As shown, the upper steel strip 11 between the upper forming roller 12 and the first driven roller 14 forms a feeding guide section, and the lower steel strip 21 between the lower forming roller 22 and the second driven roller 24 forms a feeding conveying section. The feeding guide section is inclined to the feeding conveying section.

[0064] Thus, as the ceramic powder 5 is conveyed into the embossing channel 3 under the drive of the lower pressure roller assembly 2, the feed guide section is inclined, forming an angle with the feed conveying section. The gap between the feed guide section and the feed conveying section gradually tightens, and the height gradually decreases. When the ceramic powder 5 enters the gap between the feed guide section and the feed conveying section, it is squeezed by the feed guide section. The upper layer of ceramic powder 5 is gradually squeezed into the lower layer of ceramic powder 5, and some of the gas between the ceramic powder 5 is expelled. This results in a longer compression distance and a smaller drop for the ceramic powder 5. Simultaneously, the roller-pressing texture component 41 contacts and initially compresses the ceramic powder 5 before it enters the embossing channel 3. There, it is further compressed and broken by the upper forming roller 12 and the lower forming roller 22, forming a textured ceramic slab.

[0065] Second Embodiment

[0066] The first embodiment discloses a roll forming equipment for ceramic patterns, which realizes the purpose of forming embossing on ceramic slabs without changing or finely adjusting the process parameters of roll forming ceramic slabs. Furthermore, it can flexibly and conveniently replace the roll forming pattern part 41 according to design and requirements, thereby improving production efficiency.

[0067] Because ceramic powder 5 spills from the device / equipment during transportation and rolling, the inventors used a side-stop strip assembly in the existing rolling forming device, and used the inclined surface of the side-stop strip assembly to abut against the end face of the compaction section to prevent powder leakage. Through long-term production or testing, it was found that when the existing side-stop strip assembly and the compaction section are attached, because the existing side-stop strip assembly is stationary, the compaction belt will rub and wear against the existing side-stop strip assembly during movement. Furthermore, both the existing side-stop strip assembly and the compaction belt will vibrate during the rolling process.

[0068] To address the aforementioned problems, the inventor also provides a preferred method, for details please refer to [link / reference needed]. Figure 2 and Figure 4 As shown, a lateral constraint member 6 is provided on the roller-pressed textured part 41. The lateral constraint member 6 extends along the length direction of the roller-pressed textured part 41 and is wrapped around the upper surface of the roller-pressed textured part 41. In this way, the ceramic powder 5 is dispersed from the side of the roller-pressed textured part 41 during transportation by the obstruction of the lateral constraint member 6. Preferably, two lateral constraint members 6 are configured and arranged opposite to each other. Then, the ceramic powder 5 will be well constrained between the two lateral constraint members 6, thereby effectively transporting the ceramic powder 5 into the embossing channel 3 for compaction and embossing.

[0069] The core of this embodiment lies in the elasticity of the lateral constraint member 6, which allows it to be compressed and deformed as it passes through the embossing channel 3. Thus, as the lateral constraint member 6 moves to the embossing channel 3 along with the roller pattern member 41, the upper steel strip 11 of the upper pressure roller assembly 1 abuts against and adheres to the lateral constraint member 6. When the upper steel strip 11 compresses the lateral constraint member 6, it deforms and self-adjusts, thereby preventing damage to the lateral constraint member 6. Its unexpected effects include the following:

[0070] 1. During the process of compacting and embossing the ceramic powder through the embossing channel 3, the upper steel belt 11, the roller-pressed textured part 41, and the lateral constraint part 6 are relatively stationary to each other. In this way, the lateral constraint part 6 and the upper steel belt 11 will not rub or wear, and the problem of vibration between the lateral constraint part 6 and the upper steel belt 11 is also avoided.

[0071] 2. Under the action of the lateral constraint member 6, the ceramic powder can generate a lateral constraint force on the ceramic slab during the forming process, resulting in better forming quality of the ceramic slab. That is, during the extrusion process of the upper pressure roller assembly 1 and the lower pressure roller assembly 2, the ceramic powder will expand towards both sides of the roller texture member 41. At this time, under the constraint of the lateral constraint member 6, not only will it not collapse, but the uncompacted powder will also not scatter from the ceramic powder.

[0072] 3. Since the lateral restraint member 6 passes through the embossing channel 3 along with the roller-pressed textured part 41, the ceramic slab is still subject to the lateral restraint force of the lateral restraint member 6 when passing through the embossing channel 3. In this way, the lateral restraint member 6 and the roller-pressed textured part 41 cooperate with each other to effectively ensure that the ceramic slab is shaped and stabilized within the embossing channel 3, thereby further improving the quality of the ceramic slab. At the same time, it also prevents uncompacted ceramic powder from scattering from the embossing channel 3 and contaminating the roller pressing equipment.

[0073] 4. By cleverly utilizing the tension provided by the lower pressure roller assembly 2, the lateral constraint 6 can be stably fixed on the roller-pressed textured part 41. Compared with the existing edge strip assembly, it is simpler, easier to manufacture and assemble, and effectively reduces production costs.

[0074] As a preferred embodiment, the roller-pressed textured part 41 is provided with lateral constraint parts 6 on both opposite sides of the conveying direction. The roller-pressed textured part 41 is provided with positioning protrusions, and the lateral constraint parts 6 are provided with adjusting grooves for engaging the positioning protrusions. In this way, the lateral bearing capacity of the lateral constraint parts 6 can be enhanced through the cooperation of the positioning protrusions and the adjusting grooves.

[0075] The number of adjustment slots is configured to be multiple, and the multiple adjustment slots are spaced apart along the width direction of the lateral constraint member 6. The positioning protrusion engages with different adjustment slots, so as to achieve the purpose of adjusting the distance between the two lateral constraint members 6 by cooperating with the positioning protrusion and the adjustment slot.

[0076] It should be noted that the aforementioned positioning protrusion can be set on the lateral constraint member 6, and the adjustment slot can be set on the roller-pressed textured member 41, which can also achieve the purpose of enhancing the lateral bearing capacity of the lateral constraint member 6.

[0077] In another preferred embodiment, the roll-formed part 41 and the lateral constraint part 6 are integrally formed. This ensures the connection strength between the roll-formed part 41 and the lateral constraint part 6, thereby generating optimal lateral constraint force on the ceramic slab. Furthermore, the lateral constraint part 6 is not required to be assembled separately, simplifying the assembly process of the roll forming equipment. When it is necessary to change the spacing between the two lateral constraint parts 6, the roll-formed part 41 can be disassembled and replaced with a roll-formed part 41 that meets the spacing requirements between the two lateral constraint parts 6. Replacement is also quite simple and efficient, effectively ensuring production efficiency.

[0078] Third Embodiment

[0079] Based on the roll forming equipment for ceramic textures disclosed in the first and second embodiments, the inventors also disclosed a roll forming method. Before the roll forming process, the roll-formed part 41 should be assembled onto the upper steel strip 11 of the upper pressure roller assembly 1 and / or the lower steel strip 21 of the lower pressure roller assembly 2, such as... Figure 1As shown, taking the assembly of the roll-formed part 41 onto the lower steel strip 21 of the lower pressure roller assembly 2 as an example, the second tensioning cylinder 25 is controlled to contract, so that the lower steel strip 21 of the lower pressure roller assembly 2 is in a relaxed state. The roll-formed part 41 with the selected spacing specification (the distance between the two lateral constraint parts 6) is then fitted onto the lower steel strip 21 of the lower pressure roller assembly 2. The second tensioning cylinder 25 is then controlled to push until the lower steel strip 21 is in a tensioned state and the roll-formed part 41 is in tight contact with the lower steel strip 21. Next, the roll forming process begins, including the following steps:

[0080] Step 1: Quantitatively feed ceramic powder 5 to the lower pressure roller assembly 2. Specifically, a hopper can be used for quantitative feeding, that is, fill the hopper with powder, adjust the hopper according to the thickness of the brick blank, and control the hopper to control the powder to fall onto the roller pressing texture part 41 on the lower pressure roller assembly 2.

[0081] Step 2: The ceramic powder 5 is conveyed to the embossing channel 3 along the conveying direction. Specifically, the ceramic powder 5 is conveyed towards the embossing channel 3 along with the roller embossing component 41. When the ceramic powder 5 enters the gap between the feeding guide section and the feeding conveying section, some of the gas inside the ceramic powder 5 is discharged, and the roller embossing component 41 will contact and initially compress the ceramic powder 5.

[0082] Step 3: Through the combined action of the upper pressure roller assembly 1, the lower pressure roller assembly 2 and the roller pressing texture part 41, the ceramic powder 5 is compacted and embossed into a textured ceramic slab.

[0083] In step 3, the combined force applied by the upper forming roller 12 of the upper roller assembly 1 and the lower forming roller 22 of the lower roller assembly 2 not only achieves the effect of crushing and extruding the ceramic slab, but also causes the roller-pressed textured part 41 to emboss patterns on the surface of the ceramic slab. As the ceramic slab passes through the embossing channel 3, the cooperation between the roller-pressed textured part 41 and the lateral constraint part 6 further shapes and stabilizes the ceramic slab, gradually releasing internal gas and stress, thus improving the quality of the ceramic slab.

[0084] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A roll forming device for ceramic textures, characterized in that, include: Upper pressure roller assembly (1); The lower pressure roller assembly (2) is provided with the upper pressure roller assembly (1) and the lower pressure roller assembly (2) being distributed opposite to each other, and the upper pressure roller assembly (1) and the lower pressure roller assembly (2) are spaced apart to form an embossing channel (3). The upper steel strip (11) of the upper pressure roller assembly (1) and / or the lower steel strip (21) of the lower pressure roller assembly (2) are wound with a roll-formed part (41) with elastic properties. The surface of the roll-formed part (41) is provided with embossed protrusions. The roller-pressed textured part (41) is used to roll-press ceramic powder (5) into a textured ceramic blank as it passes through the embossing channel (3) along the conveying direction. The roller-pressed textured part (41) is provided with a lateral constraint (6), which extends along the length of the roller-pressed textured part (41). The lateral constraint (6) has elastic properties, so that the lateral constraint (6) is squeezed and deformed when passing through the embossing channel (3).

2. The roll forming equipment for ceramic textures according to claim 1, characterized in that: The perimeter of the roll-formed part (41) is 0% to 10% shorter than the perimeter of the upper steel strip (11), or the perimeter of the roll-formed part (41) is 0% to 10% shorter than the perimeter of the lower steel strip (21).

3. The roll forming equipment for ceramic textures according to claim 1 or 2, characterized in that: The upper pressure roller assembly (1) includes an upper forming pressure roller (12) and an upper power roller assembly. The upper forming pressure roller (12) cooperates with the upper power roller assembly to tension the upper steel strip (11). The lower pressure roller assembly (2) includes a lower forming pressure roller (22) and a lower power roller assembly. The lower forming pressure roller (22) cooperates with the lower power roller assembly to tension the lower steel strip (21). The upper forming pressure roller (12) is arranged opposite to the lower forming pressure roller (22).

4. The roll forming equipment for ceramic textures according to claim 3, characterized in that: The upper power roller assembly includes a first active roller (13), a first driven roller (14) and a first tension cylinder (15). The upper forming pressure roller (12) is disposed between the first active roller (13) and the first driven roller (14). The movable extension end of the first tension cylinder (15) is connected to the first driven roller (14). The lower power roller assembly includes a second driving roller (23), a second driven roller (24), and a second tensioning cylinder (25). The lower forming pressure roller (22) is located between the second driving roller (23) and the second driven roller (24). The movable extension end of the second tensioning cylinder (25) is connected to the second driven roller (24).

5. The roll forming equipment for ceramic textures according to claim 1, characterized in that: The roller-pressed textured part (41) is provided with lateral constraint members (6) on both opposite sides of the conveying direction. One of the roller-pressed textured part (41) and the lateral constraint member (6) is provided with a positioning protrusion. The other roller-pressed textured part (41) and the lateral constraint member (6) are provided with an adjustment slot for engaging the positioning protrusion. The positioning protrusion and the adjustment slot cooperate to adjust the distance between the two lateral constraint members (6).

6. The roll forming equipment for ceramic textures according to claim 1, characterized in that: The roll-formed part (41) and the lateral constraint part (6) are integrally formed.

7. The roll forming equipment for ceramic textures according to claim 1, 2, 5, or 6, characterized in that: It also includes a cleaning device (7) for removing ceramic powder (5) remaining on the surface of the rolled textured part (41).

8. The roll forming equipment for ceramic textures according to claim 4, characterized in that: The upper steel strip (11) between the upper forming roller (12) and the first driven roller (14) forms a feeding guide section, and the lower steel strip (21) between the lower forming roller (22) and the second driven roller (24) forms a feeding conveying section. The feeding guide section is inclined to the feeding conveying section.

9. A method for roll forming based on the roll forming equipment according to any one of claims 1 to 8, characterized in that, Includes the following steps: Step 1: Quantitatively feed ceramic powder (5) to the lower pressure roller assembly (2); Step 2: The ceramic powder (5) is conveyed to the embossing channel (3) along the conveying direction; Step 3: Through the combined action of the upper pressure roller assembly (1), the lower pressure roller assembly (2) and the roller pressing texture part (41), the ceramic powder (5) is compacted and embossed into a ceramic slab with texture.

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