Powder scattering device for uniform and diversified colors of artificial stone slabs and stone processing system

Abstract

The utility model discloses a powder scattering device for uniform and diversified colors of artificial stone plates and a stone processing system. The powder scattering device comprises a powder distribution machine tool and a powder scattering assembly; the lifting driver is in communication connection with the matrix dusting device; the fixed end of the lifting driver is connected to the lifting frame, and the output end of the lifting driver is connected to the powder pressing roller and used for driving the powder pressing roller to ascend and descend. The pressing roller mechanisms are arranged on the powder scattering conveying mechanism in pairs, and the matrix powder scattering device is installed on the powder scattering conveying mechanism and located between the two pressing roller mechanisms; the small powder pressing roller, the matrix powder scattering device and the large powder pressing roller are sequentially distributed in the conveying direction of the powder scattering conveying mechanism, and the powder scattering conveying mechanism drives the pressing roller mechanism and the matrix powder scattering device to move to pass through a powder distribution area; the stone processing system uses the powder scattering device. According to the scheme, the problems that an existing artificial stone plate is poor in color uniformity and monotonous in color are solved.

Description

Technical Field

[0001] The utility model relates to the field of artificial stone slab processing devices, in particular to a powder spreading device and a stone processing system for artificial stone slabs with uniform and diverse patterns. Background Art

[0002] While demand for a wide variety of patterns and colors is increasing, the pattern of similar products from different batches can be fuzzy, meaning the pattern consistency of each product is poor. This is due to variations in the stone materials and / or color powders during the rolling process, resulting in variations and lack of uniformity in the final color. Furthermore, the patterns and colors of existing artificial stone are too monotonous, making it difficult to adjust the pattern to suit specific conditions, resulting in a monotonous decorative effect. Utility Model Content

[0003] The purpose of the utility model is to provide a powder spreading device for artificial stone slabs with uniform and diverse colors. The two powder rollings can ensure that the color powder and the raw material are completely rolled and fused, and the depth and boundary of the color powder can maintain the expected effect.

[0004] The utility model also provides a stone processing system, which uses the above-mentioned powder spreading device for producing uniform and diverse artificial stone slab colors.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A powder spreading device for artificial stone slabs with uniform and diverse patterns, comprising: a powder spreading machine tool and a powder spreading assembly;

[0007] The powder distribution machine tool is provided with a powder distribution area;

[0008] The powder spreading assembly includes: a pressing roller mechanism, a matrix powder spreading device and a powder spreading conveying mechanism;

[0009] The powder spreading and conveying mechanism is movably mounted on the powder spreading machine; the pressing roller mechanism comprises: a lifting frame, a lifting drive and a powder pressing roller;

[0010] The lifting drive is communicatively connected to the matrix powder spreading device; the fixed end of the lifting drive is connected to the lifting frame, and the output end of the lifting drive is connected to the powder pressing roller, so as to drive the powder pressing roller to move up and down; the pressure roller mechanisms are arranged in pairs on the powder spreading conveying mechanism, and the matrix powder spreading device is installed on the powder spreading conveying mechanism and is located between the two pressure roller mechanisms, wherein the powder pressing roller of one of the pressure roller mechanisms is a large powder pressing roller, and the powder pressing roller of the other pressure roller mechanism is a small powder pressing roller, and the size of the large powder pressing roller is larger than that of the small powder pressing roller; the matrix powder spreading device is used to output toner to the powder distribution area according to preset parameters;

[0011] The small powder pressing roller, the matrix powder spreading device and the large powder pressing roller are sequentially distributed in the conveying direction of the powder spreading conveying mechanism, and the powder spreading conveying mechanism drives the pressing roller mechanism and the matrix powder spreading device to move through the powder spreading area.

[0012] Optimally, the pressing roller mechanism further comprises: a roller rotating seat and a driving motor;

[0013] The roller rotatable seat is installed on the lifting frame, and the end of the powder pressing roller is rotatably installed on the roller rotatable seat; the driving motor is installed on the lifting frame, and the output end of the driving motor drives the powder pressing roller to rotate.

[0014] Optimally, the pressing roller mechanism further comprises: a decelerating driving wheel, a decelerating driven wheel, a speed reducer and a decelerating synchronous belt;

[0015] The output end of the driving motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the reduction driving wheel, and the reduction driven wheel is installed on the end of the powder pressing roller; the reduction synchronous belt connects the reduction driving wheel and the reduction driven wheel in synchronous rotation.

[0016] Optimally, the matrix powder spreading device comprises: a material box and a pneumatic valve;

[0017] The material box is provided with a material cavity for containing color powder, and a plurality of pneumatic valves are arranged in an array below the material box. The input end of the pneumatic valve is connected to the material cavity, and the output end of the pneumatic valve faces downward toward the powder distribution machine.

[0018] Optimally, the matrix powder spreading device comprises: a pneumatic stirring plate and a pneumatic stirrer;

[0019] The pneumatic stirring plate is arranged in the material cavity; the pneumatic stirrer is installed in the material box, and the output end of the pneumatic stirrer is connected to the pneumatic stirring plate for driving the pneumatic stirring plate to move.

[0020] Optimally, the pollination machine tool comprises: a frame, a pollination driving wheel, a pollination driven wheel, a pollination driver and a pollination conveyor belt;

[0021] The pollination driving wheel and the pollination driven wheel are rotatably mounted on the frame; the output end of the pollination driver is connected to the pollination driving wheel for driving the pollination driving wheel to rotate; the pollination conveyor belt connects the pollination driving wheel and the pollination driven wheel so that they rotate synchronously; the pollination conveyor belt forms the powder distribution area on the side facing the powder spreading component.

[0022] Optimally, the powder spreading and conveying mechanism comprises: a powder spreading main frame, a powder spreading rotating motor, a powder spreading gear and a powder spreading rack;

[0023] The powder sprinkling main frame is movably mounted on the powder spreading machine; the pressure roller mechanism and the matrix powder sprinkling device are mounted on the powder sprinkling main frame; the powder sprinkling rotating motor is mounted on the powder sprinkling main frame, and the output end of the powder sprinkling rotating motor drives the powder sprinkling gear to rotate; the powder sprinkling rack is mounted on the powder spreading machine; the powder sprinkling gear is meshed with the powder sprinkling rack.

[0024] Optimally, the powder spreading and conveying mechanism comprises: a powder spreading guide block and a powder spreading guide track;

[0025] One of the powdering guide block and the powdering guide rail is installed on the powdering main frame, and the other of the two is installed on the powder distributing machine tool; the powdering guide block is clamped on the powdering guide rail and moves along the length direction of the powdering guide rail, and the powdering main frame moves along the length direction of the powdering guide rail.

[0026] Optimally, the outer diameter ratio of the large powder pressing roller to the small powder pressing roller is (3-4):1.

[0027] A stone processing system is provided with the above-mentioned powder spreading device for producing uniform and diverse patterns of artificial stone slabs.

[0028] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0029] This solution provides a powder sprinkling device with uniform and diverse colors for artificial stone slabs. The device is constructed by arranging a matrix powder sprinkling device between two pressing roller mechanisms, and designing one of the pressing roller mechanisms as a large powder pressing roller and the other as a small powder pressing roller. Powder sprinkling is performed after pre-rolling by the large powder pressing roller, and then a second rolling is performed by the small powder pressing roller. The two powder rollings can ensure that the color powder and the raw material are completely rolled and fused, and the depth and boundary of the color powder can maintain the expected effect, thereby solving the problems of poor color uniformity and monotonous color of existing artificial stone slabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural schematic diagram of one embodiment of the powder spreading device of the present utility model;

[0031] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0032] Figure 3 This is a structural diagram of a pressing roller mechanism in one embodiment of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a matrix powder spreading device in one embodiment of the present utility model.

[0034] in:

[0035] Powder spreading machine 1, powder spreading component 2;

[0036] Pollination area 10; frame 11, pollination driving wheel 12, pollination driven wheel 13, pollination driver 14, pollination conveyor belt 15;

[0037] Pressing roller mechanism 21, matrix powder spreading device 22, powder spreading conveying mechanism 23;

[0038] Lifting frame 211, lifting driver 212, powder pressing roller 213; roller rotating seat 214, driving motor 215; deceleration driving wheel 216, deceleration driven wheel 217, speed reducer 218, deceleration synchronous belt 219;

[0039] Large powder pressing roller 2131; Small powder pressing roller 2132;

[0040] Material box 221, pneumatic valve 222; pneumatic stirring plate 223, pneumatic stirrer 224; material chamber 2211;

[0041] A powder sprinkling main frame 231 , a powder sprinkling rotating motor 232 , a powder sprinkling gear 233 , a powder sprinkling rack 234 ; a powder sprinkling guide block 235 , and a powder sprinkling guide track 236 . DETAILED DESCRIPTION

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0044] like Figure 1-4, a powder spreading device for artificial stone slabs with uniform and diverse colors, comprising: a powder spreading machine tool 1 and a powder spreading component 2;

[0045] The powder distribution machine tool 1 is provided with a powder distribution area 10;

[0046] The powder spreading assembly 2 includes: a pressing roller mechanism 21, a matrix powder spreading device 22 and a powder spreading conveying mechanism 23;

[0047] The powder spreading and conveying mechanism 23 is movably mounted on the powder spreading machine 1; the pressing roller mechanism 21 comprises: a lifting frame 211, a lifting driver 212 and a powder pressing roller 213;

[0048] The lifting drive 212 is communicatively connected to the matrix powder spreading device 22; the fixed end of the lifting drive 212 is connected to the lifting frame 211, and the output end of the lifting drive 212 is connected to the powder pressing roller 213, which is used to drive the powder pressing roller 213 to move up and down; the pressure roller mechanism 21 is arranged in pairs on the powder spreading conveying mechanism 23, and the matrix powder spreading device 22 is installed on the powder spreading conveying mechanism 23 and is located between the two pressure roller mechanisms 21, wherein the powder pressing roller 213 of one of the pressure roller mechanisms 21 is a large powder pressing roller 2131, and the powder pressing roller 213 of the other pressure roller mechanism 21 is a small powder pressing roller 2132, and the size of the large powder pressing roller 2131 is larger than that of the small powder pressing roller 2132; the matrix powder spreading device 22 is used to output toner to the powder distribution area 10 according to preset parameters;

[0049] The small powder pressing roller 2132 , the matrix powder sprinkling device 22 and the large powder pressing roller 2131 are sequentially distributed in the conveying direction of the powder sprinkling conveying mechanism 23 , and the powder sprinkling conveying mechanism 23 drives the pressing roller mechanism 21 and the matrix powder sprinkling device 22 to move through the powder distribution area 10 .

[0050] The present solution provides a powder sprinkling device with uniform and diverse colors for artificial stone slabs. The device disposes a matrix powder sprinkling device 22 between two pressing roller mechanisms 21, and designs one of the pressing roller mechanisms 21 as a large powder pressing roller 2131 and the other pressing roller mechanism 21 as a small powder pressing roller 2132. Powder sprinkling is performed after pre-rolling by the large powder pressing roller 2131, and then a second rolling is performed by the small powder pressing roller 2132. The two powder rollings can ensure that the color powder and the raw material are completely rolled and fused, and the depth and boundary of the color powder can maintain the expected effect, thereby solving the problems of poor color uniformity and monotonous color of existing artificial stone slabs.

[0051] Specifically, the powder distribution machine 1 is provided with a powder distribution area 10, which is mainly used to receive or store stone raw materials. The stone raw materials can be placed in the powder distribution area 10 by manual placement or mechanical transmission; the powder spreading conveying mechanism 23 has a moving function, which can drive the matrix powder spreading device 22 and a pair of pressure roller mechanisms 21 to move over the stone raw materials in the powder distribution area 10; the pressure roller mechanism 21, the matrix powder spreading device 22 and the pressure roller mechanism 21 of this scheme are distributed in sequence; the size of the large powder pressing roller 2131 of one of the pressure roller mechanisms 21 is larger than the size of the small powder pressing roller 2132 of the other pressure roller mechanism 21; and the small powder pressing roller 2132, the matrix powder spreading device 22 and the large powder pressing roller 2131 are distributed in sequence toward the transmission direction of the powder spreading conveying mechanism 23, such as Figure 1 The direction of the arrow is the conveying direction of the powder spreading conveying mechanism 23, that is, the large powder pressing roller 2131 first performs rolling, and then the matrix powder spreading device 22 spreads the toner, and finally the small powder pressing roller 2132 rolls the toner and the raw material sprinkled on the raw material to achieve the effect of fusion of the toner and the raw material; more specifically, the powder spreading conveying mechanism 23 first moves to drive the roller mechanism 21 with the large powder pressing roller 2131 to move to the powder spreading area 10, and starts the lifting driver 212 corresponding to the large powder pressing roller 2131, and the lifting driver 212 drives the large powder pressing roller 2131 to spread the toner. The roller 2131 presses downwards on the stone raw materials in the powder spreading area 10. The large powder pressing roller 2131 is mainly used to pre-press the stone raw materials. The stone raw materials are rolled to a certain flatness, which can prepare a reference plane for the subsequent color powder spreading. After that, the powder spreading conveyor mechanism 23 continues to move, driving the matrix powder spreading device 22 to move to the powder spreading area 10. The matrix powder spreading device 22 spreads color powder on the stone raw materials in the powder spreading area 10, and spreads the colored color powder according to the set stone product color. The matrix powder spreading device 22 is controlled by numerical control, and a preset value can be input into it in advance. Parameters, the matrix powder spreading device 22 can spread powder according to the parameters, so the powder spreading accuracy is high; thereafter, the powder spreading conveying mechanism 23 continues to move, driving the roller mechanism 21 with the small powder pressing roller 2132 to move to the powder distribution area 10, and starts the lifting driver 212 corresponding to the small powder pressing roller 2132, and the lifting driver 212 drives the small powder pressing roller 2132 to press downward toward the stone raw material in the powder distribution area 10, and the toner sprinkled on the raw material is crushed by the small powder pressing roller 2132, and the toner is then fused with the stone raw material, and due to the large powder pressing roller 2131 and the small powder pressing roller 2132 The powder pressing roller 2132 is used to mechanically crush the color powder and stone raw materials. The crushing process of each batch of stone raw materials is roughly the same. The powder spreading combined with the matrix powder spreading device 22 is based on preset parameters to distribute the color powder, and the powder spreading accuracy is high. The matrix powder spreading device 22 and the lifting drive 212 cooperate to ensure the uniformity of the pattern; and the lifting drive 212 is communicatively connected to the matrix powder spreading device 22. The lifting and lowering of the large powder pressing roller 2131 and the small powder pressing roller 2132 can be linked with the matrix powder spreading mechanism, thereby changing the presentation of the pattern to increase the variety of patterns.

[0052] The communication connection method here refers to the communication between connected devices through signal transmission interaction, which can be divided into wired connection and wireless connection; wired connection includes conventional data cable connection; wireless connection includes conventional WiFi, Bluetooth, infrared, NFC, etc.

[0053] The powder conveyor mechanism 23 can be replaced by a known mechanism capable of driving horizontal movement, such as a mobile trolley, a conveyor belt structure, a manipulator, or a combination of a motor and a screw. The lifting drive 212 can be replaced by a known mechanism capable of driving lifting, such as an air cylinder, an oil cylinder, a combination of gears and chains.

[0054] Optimally, the pressing roller mechanism 21 further includes: a roller rotating seat 214 and a driving motor 215;

[0055] The roller rotatable seat 214 is mounted on the lifting frame 211 , and the end of the powder pressing roller 213 is rotatably mounted on the roller rotatable seat 214 ; the driving motor 215 is mounted on the lifting frame 211 , and the output end of the driving motor 215 drives the powder pressing roller 213 to rotate.

[0056] In addition to being able to only vertically crush the powder, the powder roller 213 of the present solution can, in one embodiment, also crush the stone raw materials (and colorants) under the action of rotation. Specifically, when the drive motor 215 is started, the drive motor 215 directly or indirectly drives the powder roller 213 to rotate, so that the powder roller 213 contacts the powder under the action of rotation, which can flatten the stone raw materials while crushing them, so that the raw materials have the best flatness. For the small powder roller 2132, the rotation of the small powder roller 2132 can also drive the stone raw materials and the color powder to mix, so that the color powder is integrated into the stone raw materials.

[0057] Optimally, the pressing roller mechanism 21 further includes: a deceleration driving wheel 216, a deceleration driven wheel 217, a speed reducer 218 and a deceleration synchronous belt 219;

[0058] The output end of the driving motor 215 is connected to the input shaft of the reducer 218, the output shaft of the reducer 218 is connected to the reduction driving wheel 216, and the reduction driven wheel 217 is installed on the end of the powder pressing roller 213; the reduction synchronous belt 219 connects the reduction driving wheel 216 and the reduction driven wheel 217 for synchronous rotation.

[0059] The driving motor 215 of this scheme can directly drive the powder pressing roller 213 to rotate, or indirectly drive the powder pressing roller 213 to rotate through the reducer 218; specifically, the output end of the driving motor 215 drives the input shaft of the reducer 218 to rotate, drives the output shaft of the reducer 218 to rotate, thereby driving the reduction driving wheel 216 to rotate; since the reduction driving wheel 216 and the reduction driven wheel 217 are connected by the reduction synchronous belt 219, the rotation of the reduction driving wheel 216 drives the reduction driven wheel 217 to rotate, thereby driving the powder pressing roller 213 to rotate, thereby reducing the rotation speed of the powder pressing roller 213; at the same time, based on this structure, the reduction driving wheel 216 and the reduction driven wheel 217 can be distributed up and down, which can save the lateral space of the pressure roller mechanism 21 and make the structure of the pressure roller mechanism 21 simpler.

[0060] Optimally, the matrix powder spreading device 22 includes: a material box 221 and a pneumatic valve 222;

[0061] The material box 221 is provided with a material cavity 2211 for containing color powder, and a plurality of pneumatic valves 222 are arranged in an array below the material box 221. The input end of the pneumatic valve 222 is connected to the material cavity 2211, and the output end of the pneumatic valve 222 faces downward toward the powder distributing machine 1.

[0062] In this solution, the pneumatic valves 222 are arranged in an array on the material box 221, that is, the pneumatic valves 222 are arranged longitudinally and transversely; the system can control one or more of the pneumatic valves 222 to start or close according to preset parameters, so as to accurately output the color powder in the material chamber 2211 to a specific position of the powder distribution area 10 through the pneumatic valve 222. When the powder pressing roller 213 is rolled with specific parameters, the stone raw material and the color powder are mixed regularly, which can improve the uniformity of the pattern, and based on the communication connection between the lifting drive 212 and the matrix powder spreading device 22, the pneumatic valve 222 and the lifting drive 212 can be linked to change the presentation of the pattern, thereby increasing the variety of patterns.

[0063] Optimally, the matrix powder spreading device 22 includes: a pneumatic stirring plate 223 and a pneumatic stirrer 224;

[0064] The pneumatic stirring plate 223 is arranged in the material chamber 2211; the pneumatic stirrer 224 is installed in the material box 221, and the output end of the pneumatic stirrer 224 is connected to the pneumatic stirring plate 223 for driving the pneumatic stirring plate 223 to move.

[0065] The pneumatic agitator 224 is a well-known mechanism with a pneumatic stirring function. Its output end drives the pneumatic stirring plate 223 to move. The movement of the pneumatic stirring plate 223 stirs the toner in the chamber 2211, mixing the toner within the chamber 2211 and evenly dispersing the toner within the chamber 2211 to ensure precise output from the array pneumatic valve 222. The output end of the pneumatic agitator 224 drives the pneumatic stirring plate 223 to move. This movement can be linear, curved, or rotational, as long as the pneumatic stirring plate 223 stirs the toner.

[0066] Optimally, the powder distribution machine 1 includes: a frame 11, a pollination driving wheel 12, a pollination driven wheel 13, a pollination driver 14 and a pollination conveyor belt 15;

[0067] The pollination driving wheel 12 and the pollination driven wheel 13 are rotatably mounted on the frame 11; the output end of the pollination driver 14 is connected to the pollination driving wheel 12 for driving the pollination driving wheel 12 to rotate; the pollination conveyor belt 15 connects the pollination driving wheel 12 and the pollination driven wheel 13 so that they rotate synchronously; the pollination conveyor belt 15 forms the powder distribution area 10 on the side facing the powder spreading component 2.

[0068] The powder distribution machine 1 of this solution can be replaced by a known device for receiving or transmitting powder, such as a transmission wheel device, a transmission roller device, etc.; and this solution preferably uses a conveyor belt structure for pollination; specifically, the pollination driver 14 drives the pollination active wheel 12 to rotate, and drives the pollination driven wheel 13 to rotate through the pollination conveyor belt 15, and the pollination conveyor belt 15 rotates, thereby driving the powder distribution area 10 of the pollination conveyor belt 15 to rotate, thereby realizing the reception and transmission of stone raw materials; and the advantage of using the pollination conveyor belt 15 is that the pollination conveyor belt 15 can be directly transferred to other stone processing stations by gravity at the end of the conveying position, simplifying the structure of subsequent material receiving. The pollination driver 14 is a known mechanism with a driving and rotating function, such as a motor, or a combination of a motor and a reducer.

[0069] Optimally, the powder sprinkling conveying mechanism 23 includes: a powder sprinkling main frame 231, a powder sprinkling rotating motor 232, a powder sprinkling gear 233 and a powder sprinkling rack 234;

[0070] The powder sprinkling main frame 231 is movably mounted on the powder spreading machine 1; the pressure roller mechanism 21 and the matrix powder sprinkling device 22 are mounted on the powder sprinkling main frame 231; the powder sprinkling rotating motor 232 is mounted on the powder sprinkling main frame 231, and the output end of the powder sprinkling rotating motor 232 drives the powder sprinkling gear 233 to rotate; the powder sprinkling rack 234 is mounted on the powder spreading machine 1; the powder sprinkling gear 233 is engaged with the powder sprinkling rack 234.

[0071] The powder spreading conveying mechanism 23 is preferably driven by a gear rack structure. The powder spreading main frame 231 is movably mounted on the powder spreading machine 1 through a known guide structure. The powder spreading rotating motor 232 drives the powder spreading gear 233 to rotate. Under the meshing action of the powder spreading gear 233 and the powder spreading rack 234, the powder spreading main frame 231 moves relative to the powder spreading rack 234, driving the pressure roller mechanism 21 and the matrix powder spreading device 22 to move on the powder spreading machine 1; the pressure roller mechanism 21, the matrix powder spreading device 22 and the powder spreading conveying mechanism 23 can be communicated and connected. The advantage of using a gear rack structure is that the powder spreading main frame 231 can be accurately conveyed to a specific position.

[0072] The powder spreading rotating motor 232 is a mechanism with a known driving rotation function, such as a motor, or a combination of a motor and a speed reducer.

[0073] Optimally, the powder-sprinkling conveying mechanism 23 includes: a powder-sprinkling guide block 235 and a powder-sprinkling guide track 236;

[0074] One of the powdering guide block 235 and the powdering guide rail 236 is installed on the powdering main frame 231, and the other one is installed on the powder distributing machine tool 1; the powdering guide block 235 is clamped on the powdering guide rail 236 and moves along the length direction of the powdering guide rail 236, and the powdering main frame 231 moves along the length direction of the powdering guide rail 236.

[0075] The powdering guide block 235 can be installed on the powdering main frame 231 (or the powdering machine 1) as needed, and the powdering guide rail 236 can be installed on the powdering machine 1 (or the powdering main frame 231) as needed. The powdering guide block 235 is clamped on the powdering guide rail 236. When the powdering main frame 231 is connected to the powdering guide block 235 or the powdering guide rail 236, the powdering main frame 231 can move along the length direction of the powdering guide rail 236, thereby providing a guiding effect for the powdering main frame 231 and improving the smoothness of movement.

[0076] Optimally, the outer diameter ratio of the large powder pressing roller 2131 to the small powder pressing roller 2132 is (3-4):1.

[0077] In this scheme, the size of the large powder pressing roller 2131 is preferably 3 to 4 times that of the small powder pressing roller 2132. This size ratio can ensure that the large powder pressing roller 2131 and the small powder pressing roller 2132 maintain an optimal size difference. The pre-pressed reference plane of the large powder pressing roller 2131 is just suitable for the rolling of the small powder pressing roller 2132 after sprinkling the color powder. The small powder pressing roller 2132 has the best mixing uniformity of the color powder and the stone raw materials.

[0078] A stone processing system is provided with the above-mentioned powder spreading device for producing uniform and diverse patterns of artificial stone slabs.

[0079] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A powder spreading device for artificial stone slabs with uniform and diverse colors, characterized by: include: Powder spreading machines and powder spreading components; The powder distribution machine tool is provided with a powder distribution area; The powder spreading assembly includes: a pressing roller mechanism, a matrix powder spreading device and a powder spreading conveying mechanism; The powder spreading and conveying mechanism is movably mounted on the powder spreading machine; the pressing roller mechanism comprises: a lifting frame, a lifting drive and a powder pressing roller; The lifting drive is communicatively connected to the matrix powder spreading device; the fixed end of the lifting drive is connected to the lifting frame, and the output end of the lifting drive is connected to the powder pressing roller, so as to drive the powder pressing roller to move up and down; the pressure roller mechanisms are arranged in pairs on the powder spreading conveying mechanism, and the matrix powder spreading device is installed on the powder spreading conveying mechanism and is located between the two pressure roller mechanisms, wherein the powder pressing roller of one of the pressure roller mechanisms is a large powder pressing roller, and the powder pressing roller of the other pressure roller mechanism is a small powder pressing roller, and the size of the large powder pressing roller is larger than that of the small powder pressing roller; the matrix powder spreading device is used to output toner to the powder distribution area according to preset parameters; The small powder pressing roller, the matrix powder spreading device and the large powder pressing roller are sequentially distributed in the conveying direction of the powder spreading conveying mechanism, and the powder spreading conveying mechanism drives the pressing roller mechanism and the matrix powder spreading device to move through the powder spreading area.

2. A powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 1, characterized in that: The pressing roller mechanism further comprises: a roller rotating seat and a driving motor; The roller rotatable seat is installed on the lifting frame, and the end of the powder pressing roller is rotatably installed on the roller rotatable seat; the driving motor is installed on the lifting frame, and the output end of the driving motor drives the powder pressing roller to rotate.

3. A powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 2, characterized in that: The pressure roller mechanism further comprises: a deceleration driving wheel, a deceleration driven wheel, a speed reducer and a deceleration synchronous belt; The output end of the driving motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the reduction driving wheel, and the reduction driven wheel is installed on the end of the powder pressing roller; the reduction synchronous belt connects the reduction driving wheel and the reduction driven wheel in synchronous rotation.

4. A powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 1, characterized in that: The matrix powder spreading device includes: a material box and a pneumatic valve; The material box is provided with a material cavity for containing color powder, and a plurality of pneumatic valves are arranged in an array below the material box. The input end of the pneumatic valve is connected to the material cavity, and the output end of the pneumatic valve faces downward toward the powder distribution machine.

5. A powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 4, characterized in that: The matrix powder spreading device comprises: a pneumatic stirring plate and a pneumatic stirrer; The pneumatic stirring plate is arranged in the material cavity; the pneumatic stirrer is installed in the material box, and the output end of the pneumatic stirrer is connected to the pneumatic stirring plate for driving the pneumatic stirring plate to move.

6. The powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 1, characterized in that: The pollination machine tool comprises: a frame, a pollination driving wheel, a pollination driven wheel, a pollination driver and a pollination conveyor belt; The pollination driving wheel and the pollination driven wheel are rotatably mounted on the frame; the output end of the pollination driver is connected to the pollination driving wheel for driving the pollination driving wheel to rotate; the pollination conveyor belt connects the pollination driving wheel and the pollination driven wheel so that they rotate synchronously; the pollination conveyor belt forms the powder distribution area on the side facing the powder spreading component.

7. The powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 1, characterized in that: The powder spreading and conveying mechanism comprises: a powder spreading main frame, a powder spreading rotating motor, a powder spreading gear and a powder spreading rack; The powder sprinkling main frame is movably mounted on the powder spreading machine; the pressure roller mechanism and the matrix powder sprinkling device are mounted on the powder sprinkling main frame; the powder sprinkling rotating motor is mounted on the powder sprinkling main frame, and the output end of the powder sprinkling rotating motor drives the powder sprinkling gear to rotate; the powder sprinkling rack is mounted on the powder spreading machine; the powder sprinkling gear is meshed with the powder sprinkling rack.

8. A powder spreading device for artificial stone slabs with uniform and diverse colors according to claim 7, characterized in that: The powder spreading and conveying mechanism comprises: a powder spreading guide block and a powder spreading guide track; One of the powdering guide block and the powdering guide rail is installed on the powdering main frame, and the other of the two is installed on the powder distributing machine tool; the powdering guide block is clamped on the powdering guide rail and moves along the length direction of the powdering guide rail, and the powdering main frame moves along the length direction of the powdering guide rail.

9. A powder spreading device for artificial stone slabs with uniform and diverse colors according to any one of claims 1 to 8, characterized in that: The outer diameter ratio of the large powder pressing roller to the small powder pressing roller is (3-4):

1.

10. A stone processing system, characterized in that: A powder sprinkling device for artificial stone slabs with uniform and diverse colors is provided as described in any one of claims 1 to 9.

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