A method for producing artificial stone and production equipment

Abstract

The present invention relates to the technical field of artificial stone manufacturing equipment, and particularly to a method and equipment for producing artificial stone. The following technical solutions are adopted: By applying an outward tensile force to the sticky blank, fracture gaps are formed in it. After applying coloring materials in the gaps, further curing and shaping processing is carried out to obtain artificial stone with a texture close to that of natural marble. Corresponding to the production equipment, it includes a frame and a pulling unit arranged on the frame. There are multiple pulling units distributed above the frame, and the pulling units are used to stretch the elastic and stretchable bearing pad, so as to apply an outward tensile force to the blank on the bearing pad. The advantages are as follows: By applying an outward tensile force to the blank, natural cracks are formed on the blank. After filling coloring materials in the cracks, shaping, pressing, curing, grinding, polishing, and cutting are carried out, so that the processed stone has a pattern closer to that of natural marble.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial stone manufacturing equipment, and particularly relates to a method and equipment for producing artificial stone. Background Art

[0002] The manufacturing process of artificial stone is to form a blank with the physical and chemical properties of stone through processes such as batching, stirring, mixing, cloth laying, pressing and forming, and hardening by using one or more stones or granular materials and powders with selected particle sizes similar to stones and a binder. At present, in the processing of artificial stone, in order to form patterns similar to natural marble on the processed stone, colorants are added to the mixture during the cloth laying process, and by applying multiple layers of colorants, the finally processed stone can form patterns close to natural marble patterns. This requires extremely high requirements for the application of colorants, and it is very difficult to control the finally formed pattern lines, resulting in unstable pattern quality on the stone. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and equipment for producing artificial stone, specifically to provide a method and equipment for producing artificial stone that can form patterns closer to natural marble on the stone and have stable quality.

[0004] To achieve the above purpose, the present invention adopts the following technical scheme: A method for producing artificial stone, comprising the following steps:

[0005] S01. Lay the mixture for producing artificial stone on a bearing mold to form a blank with a relatively flat surface and certain adhesiveness.

[0006] S02. Apply an outward tensile force to the blank to form fracture cracks on the blank.

[0007] S03. Apply the colorant to the fracture cracks of the blank.

[0008] S04. Further carry out solidification and forming processing on the blank to obtain artificial stone with texture close to natural marble.

[0009] Furthermore, between steps S01 and S02, there is also step S12: Process a crack opening path on the upper surface of the blank; so that when an outward tensile force is applied to the blank in step S02, fracture cracks along the crack opening path will be formed on the blank.

[0010] The present invention also provides an artificial stone production device, including a crack processing table. The crack processing table includes a frame and a pulling unit disposed on the frame. The pulling units are multiple and distributed above the frame. Each pulling unit includes a support frame, a support panel, a pulling roller, and a pulling driving mechanism. The support panel is fixedly disposed above the support frame. A roller through hole is provided on the support panel. The pulling roller is rotatably connected to the support frame and exposes from the roller through hole on the support panel. The pulling driving mechanism is fixed on the support frame and is drivingly connected to the pulling roller.

[0011] Specifically, an elastic and extensible bearing pad is provided on the crack processing table. The bearing pad is used for laying and conveying the blank.

[0012] Specifically, the pulling unit further includes a steering driving mechanism. The steering driving mechanism is drivingly connected to the support frame through a steering shaft, and the steering shaft is perpendicular to the support panel.

[0013] Furthermore, a crack opening processing platform is included. A tool cutting device or a molding device is provided on the crack opening processing platform. The tool cutting device or the molding device is used to form a crack opening on the blank on the crack opening processing platform.

[0014] Specifically, the tool cutting device includes a tool and a tool driving mechanism for driving the tool to move above the crack opening processing platform. The tool driving mechanism is used to drive the tool to move in the up-down, left-right, front-back directions.

[0015] Furthermore, a cloth distribution platform is included. A blanking mechanism and a cloth distribution mechanism are provided above the cloth distribution platform. The blanking mechanism stores a mixture and leaks the mixture from the blanking port. The cloth distribution mechanism is disposed below the blanking port of the blanking mechanism. The cloth distribution mechanism includes a driving motor, a transmission shaft, and a cloth distribution component drivingly connected to the transmission shaft. A number of distribution units are provided on the cloth distribution component.

[0016] Specifically, the cloth distribution component is in the shape of a conveyor belt. The transmission shafts of the cloth distribution mechanism are two or more and are drivingly connected to the conveyor belt-shaped cloth distribution component.

[0017] Specifically, the distribution units on the outer side of the conveyor belt-shaped cloth distribution component are long strip-shaped or grid-shaped grooves formed by partitions.

[0018] Specifically, the blanking mechanism includes a storage hopper, a conveyor belt, and a blanking baffle. The lower end of the storage hopper is provided with a discharge port and is aligned with the conveyor belt below. The blanking baffle is disposed above the conveyor belt. A blanking port is formed between the blanking baffle and the end of the conveyor belt.

[0019] The advantages of the present invention are as follows: By providing a crack processing platform, multiple pulling units provided thereon are used to pull an elastic bearing pad, so that the blank on the bearing pad forms a naturally cracked gap. Finally, by filling the gap with coloring material, a pattern closer to that of natural marble is formed on the processed stone. Moreover, by controlling the pulling direction of the pulling units and processing a crack opening on the surface of the blank, the crack path formed on the blank can be effectively controlled, thereby effectively controlling the stability of the pattern on the finally processed stone and improving the quality of the stone. In addition, in cooperation with a cloth distribution device that can form a uniform thickness and density, the shape of the crack formed in the blank can be further ensured, and the stability of the stone quality can be improved. Description of the Drawings

[0020] Appendix Figure 1 It is a schematic view of the overall structure of the crack processing platform in the embodiment;

[0021] Appendix Figure 2 It is a specific structural diagram of the pulling unit in the embodiment;

[0022] Appendix Figure 3 For the appendix Figure 2 It is a structural view of the pulling unit in the A direction in the appendix;

[0023] Appendix Figure 4 For the appendix Figure 2 It is a structural view of the pulling unit in the B direction in the appendix;

[0024] Appendix Figure 5 It is a schematic view of the overall structure of the crack opening processing platform in the embodiment;

[0025] Appendix Figure 6 It is a state diagram of the blank after processing to form a crack opening on the crack opening processing platform in the embodiment;

[0026] Appendix Figure 7 It is a state diagram of the blank after processing to form a disconnected crack on the crack processing platform in the embodiment;

[0027] Appendix Figure 8 It is a schematic view of the overall structure of the cloth distribution platform in the embodiment;

[0028] Appendix Figure 9 It is a structural diagram of the cloth distribution mechanism of the strip-shaped distribution groove with partitions in the embodiment;

[0029] Appendix Figure 10 It is a structural diagram of the cloth distribution mechanism with a grid-shaped distribution groove in the embodiment.

[0030] Description of reference numerals: 10 - bearing pad, 1 - crack processing platform, 11 - frame, 12 - pulling unit, 121 - support frame, 122 - support panel, 123 - pulling roller, 124 - pulling drive mechanism, 1241 - pulling drive motor, 1242 - transmission belt, 125 - roller through hole, 126 - steering drive mechanism, 1261 - steering drive disc, 1262 - steering drive motor, 2 - crack opening processing platform, 3 - tool cutting device, 31 - tool, 32 - tool drive mechanism, 4 - fabric distribution platform, 5 - blanking mechanism, 51 - blanking port, 52 - storage hopper, 53 - conveyor belt, 54 - blanking baffle, 6 - fabric mechanism, 61 - drive motor, 62 - transmission shaft, 63 - fabric distribution component, 64 - distribution unit, 7 - moving drive mechanism. Detailed implementation manners

[0031] Example 1, a method for producing artificial stone, comprising the following steps:

[0032] S01. Lay a mixture for producing artificial stone on a bearing mold to form a blank with a relatively flat surface and certain adhesiveness. Among them, the mixture is a mixture composed of one or more stones or stone-like granular materials with selected particle sizes, powder materials, and adhesives. The blank has certain adhesiveness before curing. When the blank is stretched, fracture cracks will form at its weak or low-adhesiveness parts.

[0033] S02. Apply an outward pulling force to the blank to form fracture cracks on the blank. Specifically, an elastic and stretchable bearing pad can be used as the bearing mold, and by stretching the bearing pad, an outward pulling force is provided to the blank on the bearing pad, so that fracture cracks are formed on the blank.

[0034] S03. Apply coloring material to the fracture cracks of the blank.

[0035] S04. Perform further curing and forming processing on the blank to obtain artificial stone with texture similar to natural marble. Among them, the curing and forming processing of the blank generally includes steps such as shaping, pressing into shape, curing, grinding, polishing, and cutting.

[0036] In a further embodiment, between steps S01 and S02, there is also step S12 of machining a crack opening path on the upper surface of the blank, so that when an outward tensile force is applied to the blank in step S02, a fracture gap will be formed along the crack opening path on the blank. When there is no crack opening on the upper surface of the blank, when an outward tensile force is applied to the blank, the blank will generate a fracture gap at a relatively weak position, and the path and shape of the generated fracture gap are relatively random. By first machining a crack opening on the upper surface of the blank, the blank is relatively weak at the crack opening. At this time, when an outward tensile force is applied to the blank, a fracture gap will be formed at the crack opening of the blank, thereby realizing the control of the path and shape of the fracture gap formed on the blank.

[0037] Referring to Figure 1-4 , for the above artificial stone production method, this embodiment also provides an artificial stone production device for applying an outward tensile force to the blank to form a fracture gap on the blank. The production device includes a crack processing platform 1. The crack processing platform 1 includes a frame 11 and a pulling unit 12 arranged on the frame 11. There are multiple pulling units 12 distributed above the frame 11. Each pulling unit 12 includes a support frame 121, a support panel 122, a pulling roller 123, and a pulling drive mechanism 124. The support panel 122 is fixedly arranged above the support frame 121. A roller through hole 125 is arranged on the support panel 122. The pulling roller 123 is rotatably connected to the support frame 121 and protrudes from the roller through hole 125 on the support panel 122. The pulling drive mechanism 124 is fixed on the support frame 121 and is drivingly connected to the pulling roller 123.

[0038] In this embodiment, the crack processing platform 1 is used to process cracks on the blank on the bearing mold. The bearing mold adopts an elastic and extendable bearing pad 10, and a blank formed by a mixture is laid on the bearing pad 10. A plurality of pulling units 12 provided on the crack processing platform 1 support the bearing pad 10, and the bearing pad 10 is pulled and deformed by the rolling of the pulling rollers 123 of the pulling units 12. When the bearing pad 10 deforms, a pulling effect is formed on the blank thereon, so that naturally disconnected cracks are formed on the blank. Moreover, different directions of pulling on the bearing pad 10 can be formed by the pulling units 12, and multiple cracks are formed on the blank. Finally, coloring materials are filled into the cracks, and after being processed through conventional processes such as pressing, curing, grinding and polishing, a stone material closer to the texture of natural marble is formed. Among them, each pulling unit 12 includes a support frame 121, a support panel 122, a pulling roller 123 and a pulling driving mechanism 124. Among them, the support frame 121 is used to provide support for the support panel 122. The support panels 122 of the plurality of pulling units 12 can effectively support the bearing pad 10. The pulling roller 123 is exposed on the support panel 122 and contacts the bearing pad 10 on the support panel 122. The pulling driving mechanism 124 is used to drive the pulling roller 123 to rotate. When the pulling roller 123 rotates, the bearing pad 10 will be pulled and extended and deformed. By applying two outward and opposite pulling forces on both sides of the position where the crack is to be formed, cracks can be formed at the corresponding positions on the blank. By setting the rolling direction of the pulling roller 123 on the pulling unit 12, cracks with relatively stable positions and paths can be formed on the blank. Moreover, since this crack is naturally broken after being pulled, compared with the flat or regular cracks generated by direct cutting, the pattern formed after filling the coloring material into this crack is closer to the texture of natural marble.

[0039] Among them, the pulling driving mechanism 124 includes a pulling driving motor 1241 and a transmission belt 1242. The pulling driving motor 1241 is drivingly connected to the pulling roller 123 through the transmission belt 1242.

[0040] Further, referring to Figure 5-7, the pulling unit 12 further includes a steering drive mechanism 126. The steering drive mechanism 126 is drivingly connected to the support frame 121 through a steering shaft. The steering drive mechanism 126 can adopt a motor drive or a cylinder drive, etc., which are conventional steering drive mechanisms in the art. In this embodiment, the motor drive mode is adopted. The steering drive mechanism 126 includes a steering drive disc 1261 and a steering drive motor 1262. The steering drive motor 1262 is drivingly connected to the support frame 121 through a transmission component arranged in the steering drive disc 1261 and the steering shaft. The steering shaft is perpendicular to the support panel 122. The steering drive mechanism 126 can rotate and adjust the direction of the support frame 121 and the pulling roller 123 thereon, so as to adjust the pulling direction of the pulling roller 123 by 360 degrees, so that cracks with a richer path can be formed on the blank. By connecting the steering drive mechanism 126 and the pulling drive mechanism 124 of each pulling unit 12 to the controller, and the controller controls the pulling angle and pulling direction of the pulling unit according to the set crack path, the path of the crack formed on the blank can be effectively controlled, and the stability of the texture shape on the stone can be improved.

[0041] In a further embodiment, a crack opening processing platform 2 is further included. A tool cutting device 3 or a molding device (not shown in the drawings) is arranged on the crack opening processing platform 2. The tool cutting device 3 or the molding device is used to form a crack opening on the blank on the crack opening processing platform 2. The crack opening processing platform 2 can process and form a crack opening with a preset path on the blank on the bearing pad 10, which makes the blank relatively weak at the crack opening. After the blank passes through the crack opening processing platform 2 to form a crack opening, it then enters the crack processing platform 1. Combining the pulling units 12 on the crack processing platform 1 to form a pulling force on both sides of the crack opening of the blank can further control the path of the crack formed on the blank, making the texture of the finally produced stone more controllable. Among them, the crack opening on the blank can be a groove cut by the tool of the tool cutting device 3 on the blank or imprinted on the blank by a molding device.

[0042] Among them, the tool cutting device 3 includes a tool 31 and a tool drive mechanism 32 for driving the tool 31 to move above the crack opening processing platform 2. The tool drive mechanism 32 is used to drive the tool 31 to move in the up-down, left-right, front-back directions. The tool drive mechanism 32 can adopt a three-axis drive mechanism that can provide up-down, front-back, and left-right drive movements, or a multi-joint robotic arm or a multi-joint robot that can perform multi-axis drive movements.

[0043] Refer to Figure 8-10, in a further embodiment, it further includes a fabric distribution platform 4. Above the fabric distribution platform 4, there are a blanking mechanism 5 and a fabric mechanism 6. The blanking mechanism 5 stores the mixed material and leaks the mixed material from the blanking port 51. The fabric mechanism 6 is arranged below the blanking port 51 of the blanking mechanism 5. The fabric mechanism 6 includes a driving motor 61, a transmission shaft 62, and a fabric distribution component 63 that is drivingly connected to the transmission shaft 62. A number of distribution units 64 are arranged on the fabric distribution component 63.

[0044] Among them, the blanking mechanism 5 is used to leak the mixed material onto the fabric mechanism 6. The driving motor 61 of the fabric mechanism 6 drives the fabric distribution component 63 to rotate in a cycle through the transmission shaft 62. After the mixed material leaked from the blanking mechanism 5 falls above the fabric distribution component 63, with the cyclic rotation of the fabric distribution component 63, it falls from the fabric distribution component 63 onto the bearing pad 10 below for bearing the mixed material. A number of distribution units 64 outside the fabric distribution component 63 can distribute the mixed material leaked from the blanking mechanism 5 into several mixed material groups with smaller unit mass, and then drop the several mixed material groups into the bearing pad 10 for bearing the mixed material, so that the mixed material can be more evenly distributed on the bearing pad 10. Through this fabric distribution platform 4, a blank with more uniform thickness and density can be formed, so that during the process of the blank being pulled and broken, the shape of the crack formed is more stable, and the quality of the finally processed and formed stone can be effectively improved.

[0045] Among them, the fabric distribution component 63 is in the shape of a conveyor belt. The transmission shaft 62 of the fabric mechanism 6 is two or more and is drivingly connected to the conveyor belt-shaped fabric distribution component 63. The distribution units 64 outside the conveyor belt-shaped fabric distribution component 63 are long strip-shaped or grid-shaped grooves composed of partition plates.

[0046] Specifically, the above-mentioned blanking mechanism 5 includes a storage hopper 52, a conveyor belt 53, and a blanking baffle 54. The lower end of the storage hopper 52 is provided with a discharge port and is aligned with the conveyor belt 53 below. The blanking baffle 54 is arranged above the conveyor belt 53. A blanking port 51 is formed between the blanking baffle 54 and the end of the conveyor belt 53. The storage hopper 52 is used to store the mixed material. The mixed material can leak out from the discharge port at the lower end of the storage hopper 52 and fall onto the conveyor belt 53 below. When the conveyor belt 53 runs and rotates, it can forwardly transport the mixed material leaked from the storage hopper 52, so that the mixed material falls from the end of the conveyor belt 53 onto the fabric distribution component 63 of the fabric mechanism 6. The blanking baffle 54 above the conveyor belt 53 can limit the height of the mixed material on the conveyor belt 53, so that the thickness of the mixed material on the conveyor belt 53 remains relatively constant, thereby making the distribution of the mixed material falling onto the fabric distribution component 63 more uniform.

[0047] In order to facilitate the transmission of the blank, a transmission mechanism is provided on both the crack opening processing platform 2 and the cloth distribution platform 4. The transmission mechanism on the cloth distribution platform 4 is used to transmit the bearing pad 10 on the cloth distribution platform 4 together with the blank to the crack opening processing platform 2, and the transmission mechanism on the crack opening processing platform 2 is used to transmit the bearing pad 10 together with the blank to the crack processing platform 1. The transmission mechanisms on the crack opening processing platform 2 and the cloth distribution platform 4 can be a conveyor belt structure or other transmission mechanisms that can achieve linear transmission.

[0048] In addition, during the cloth distribution process of the above-mentioned cloth distribution platform 4, the cloth distribution mechanism 6 and the bearing pad 10 for carrying the mixture need to move relative to each other so that the mixture can be evenly laid on the bearing pad 10. The blanking mechanism 5 and the cloth distribution mechanism 6 can be driven to move together above the bearing pad 10, or the bearing pad 10 below can be driven to move. The transmission mechanism of the above-mentioned cloth distribution platform 4 can be used to transmit and move the bearing pad 10 so that the bearing pad 10 and the cloth distribution mechanism 6 move relative to each other. Alternatively, a moving drive mechanism 7 can be provided to drive the blanking mechanism 5 and the cloth distribution mechanism 6 to move above the bearing pad 10. The moving drive mechanism 7 can adopt a commonly used linear drive mechanism. For example, slides or rails can be provided on both sides of the cloth distribution platform 4, and the moving drive mechanism 7 can be arranged across the cloth distribution platform 4. The moving drive mechanism 7 can adopt a frame structure with drive wheels, and the blanking mechanism 5 and the cloth distribution mechanism 6 can be fixedly arranged on the frame to achieve driving. Other linear drive mechanisms commonly used in the art can also be adopted, which are not limited herein.

[0049] Of course, the above is only a preferred embodiment of the present invention, and does not limit the scope of use of the present invention. Therefore, all equivalent changes made on the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An artificial stone production device, characterized in that: It includes a crack processing table, which includes a frame and a pulling unit arranged on the frame. The pulling units are multiple and distributed above the frame. Each pulling unit includes a support frame, a support panel, a pulling roller and a pulling drive mechanism. The support panel is fixedly arranged above the support frame. There is a roller through-hole on the support panel. The pulling roller is rotatably connected to the support frame and protrudes from the roller through-hole on the support panel. The pulling drive mechanism is fixed on the support frame and is drivingly connected to the pulling roller; the pulling unit further includes a steering drive mechanism, and the steering drive mechanism is drivingly connected to the support frame through a steering shaft, and the steering shaft is perpendicular to the support panel; it also includes a crack opening processing platform, and a tool cutting device or a molding device is arranged on the crack opening processing platform. The tool cutting device or the molding device is used to form a crack opening on the blank on the crack opening processing platform; it also includes a cloth distribution platform, and a blanking mechanism and a cloth distribution mechanism are arranged above the cloth distribution platform. The blanking mechanism stores the mixed material and leaks the mixed material from the blanking port. The cloth distribution mechanism is arranged below the blanking port of the blanking mechanism; the cloth distribution mechanism includes a driving motor, a transmission shaft and a cloth distribution component drivingly connected to the transmission shaft. A number of distribution units are arranged on the cloth distribution component.

2. An artificial stone production device according to claim 1, characterized in that: An elastic and extensible bearing pad is arranged on the crack processing table, and the bearing pad is used for laying and conveying the blank.

3. An artificial stone production device according to claim 1, characterized in that: The tool cutting device includes a tool and a tool drive mechanism for driving the tool to move above the crack opening processing platform. The tool drive mechanism is used to drive the tool to move in the up-down, left-right, front-back directions.

4. An artificial stone production device according to claim 1, characterized in that: The cloth distribution component is in the shape of a conveyor belt. There are two or more transmission shafts of the cloth distribution mechanism and are drivingly connected to the conveyor belt-shaped cloth distribution component.

5. An artificial stone production device according to claim 1, characterized in that: The blanking mechanism includes a storage hopper, a conveyor belt and a blanking baffle. The lower end of the storage hopper is provided with a discharge port and is aligned with the conveyor belt below. The blanking baffle is arranged above the conveyor belt, and a blanking port is formed between the blanking baffle and the end of the conveyor belt.

6. A method for producing artificial stone using the artificial stone production equipment according to any one of claims 1-5, characterized in that, It includes the following steps: S01. Lay the mixed material for producing artificial stone on the bearing mold to form a blank with a relatively flat surface and a certain adhesiveness. S02. Apply an outward pulling force to the blank to form a fracture gap on the blank. S03. Apply the coloring material to the fracture gap of the blank. S04. Perform further curing and forming processing on the blank to obtain artificial stone with texture similar to natural marble.

7. A method for producing artificial stone according to claim 6, characterized in that: Between steps S01 and S02, there is also step S12. Process a crack opening path on the upper surface of the blank; so that when an outward pulling force is applied to the blank in step S02, a fracture gap along the crack opening path will be formed on the blank.

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