Spce floor crushing equipment

Abstract

The present application relates to the technical field of broken recycling material, and particularly relates to a spc floor crushing equipment, which is sequentially provided with a feeding plate, a conveying assembly, a pretreatment assembly, a peeling assembly, a material guiding channel and a crushing assembly according to the conveying path of the plate to be broken, wherein the conveying assembly comprises two installation plates one, an upper roller and a lower roller which are arranged in clearance fit from top to bottom between the two installation plates one, and the spacing between the upper roller and the lower roller can be adjusted, and the upper roller and the lower roller rotate towards different directions under the action of external driving force. Compared with the traditional method, when the spc floor is crushed, the present technical solution can remove the irrelevant coating on the surface of the plate to be broken, such as the UV layer, the decorative layer and the bottom layer, and the spc floor is crushed after the irrelevant materials are removed, so that the proportion of impurities mixed in the plate after crushing is greatly reduced, and the product quality of the recycled material is improved.

Description

Technical Field

[0001] This invention relates to the field of crushing and recycling materials technology, specifically to an SPC flooring crushing device. Background Technology

[0002] SPC flooring is a new type of flooring material with advantages such as waterproofing, moisture resistance, and wear resistance. The core layer of SPC flooring is made of calcium powder and PVC plastic, forming a strong and impact-resistant material. Typically, SPC flooring consists of the following layers: UV layer, wear-resistant layer, decorative layer, core layer, and bottom layer.

[0003] Patent document CN114290571A discloses a fully automatic stone plastic flooring recycling system. The system includes a first conveyor, a second conveyor, a third conveyor, a crusher, a transition bin, a grinding mill, a hopper, a vibrating screen, a buffer bin, and a dust collector. The system has a small footprint, a high level of automation, and improves the environmental friendliness of the stone plastic flooring recycling process.

[0004] Flooring needs to be crushed during the recycling process, which generates dust. The above solution improves the problem of material leakage and dust generated during the recycling of stone plastic flooring. However, for the recycling of SPC flooring, since SPC flooring is composed of multiple layers, if it is crushed indiscriminately, the resulting material fragments or particles will contain many impurities. This will increase the recycling cost and reduce the quality of products made from recycled materials. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an SPC flooring crushing device, which solves the problem that useful materials and impurities are crushed together during the crushing of SPC flooring, which is not conducive to the recycling of crushed materials.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An SPC flooring crushing device, arranged sequentially along the conveying path of the boards to be crushed, includes a feeding plate, a conveying assembly, a peeling assembly, a guide channel, and a crushing assembly, wherein:

[0008] The conveying assembly includes mounting plates on both sides, and an upper roller and a lower roller located between the two mounting plates with an upper and lower gap fitting. The gap between the upper roller and the lower roller can be adjusted. The upper roller and the lower roller rotate in different directions under the action of an external driving force. During the rotation, the material to be crushed located between them is conveyed to the peeling assembly.

[0009] The peeling assembly includes two mounting plates on both sides and two scrapers located between the two mounting plates with upper and lower gaps. The two scrapers are inclined relative to the horizontally conveyed material to be crushed, and the distance between the two scrapers can be adjusted. After the scrapers peel and remove impurities from the top and bottom surfaces of the material to be crushed, the peeled material enters the crushing assembly through the guide channel under the push of the upper and lower rollers.

[0010] The crushing assembly includes a crushing motor and a crushing chamber. A stirring shaft is rotatably installed inside the crushing chamber. The crushing motor provides the kinetic energy required for the rotation of the stirring shaft. Multiple stirring blades are arranged at equal angles on the surface of the stirring shaft. After the peeled board enters the crushing chamber through the material guide channel, it comes into contact with the stirring blades and is crushed into fragments and particles.

[0011] Furthermore, the output end of the crushing motor and the end of the stirring shaft that protrudes outside the crushing chamber are both fitted with pulleys, and a transmission belt is connected between the two pulleys; a fixed baffle is provided on the inner wall of the crushing chamber, and the fixed baffle has a notch corresponding to the position of the stirring blade; a screening screen is provided at the bottom of the crushing chamber.

[0012] Furthermore, a first conveyor motor and a second conveyor motor are installed on the outer wall of the mounting plate. Two lower rollers are arranged horizontally below the upper roller. The upper roller is located between the two lower rollers. The axis of the upper roller is connected to the output end of the first conveyor motor. The ends of the two lower rollers are fitted with pulleys, and a transmission belt is connected between the two pulleys. The axis of the lower roller is connected to the output end of the second conveyor motor.

[0013] Furthermore, the mounting plate has a movable groove in the middle, a slider is slidably connected in the movable groove along the vertical direction, a fixed block is fixedly connected to the top of the movable groove, the two ends of the upper roller are rotatably connected to the sliders on both sides respectively, a lead screw is threaded from top to bottom in the middle of the fixed block, the bottom end of the lead screw is rotatably connected to the slider, and a handle is connected to the top end of the lead screw.

[0014] Furthermore, the scraper includes a main body and a blade, and the angle between the blade and the horizontally arranged plate to be crushed is between 30° and 45°.

[0015] Furthermore, the mounting plate has a vertical through hole in the middle, and both ends of the main body are connected to movable seats by connecting rods. The connecting rods pass through the through hole, and the two ends of the movable seats are symmetrically threaded with locking pins about the through hole.

[0016] Furthermore, the surfaces of the first mounting plate and the second mounting plate are respectively engraved with a number ruler one and a number ruler two.

[0017] Furthermore, a grinding component is also provided between the peeling component and the material guiding channel. The grinding component includes a grinding chamber and two grinding motors respectively disposed above and below the grinding chamber. The grinding chamber is a rectangular cavity structure with openings at both ends. One end of the grinding chamber opens towards the peeling component, and the other end of the grinding chamber is connected to the material guiding channel.

[0018] The output ends of the two grinding motors pass through the top and bottom of the grinding chamber, respectively, and the output ends of the grinding motors are connected to grinding discs.

[0019] Furthermore, the side wall of the polishing chamber is provided with a guide port, which is used to connect the cavity of the polishing chamber with the vacuum cleaner.

[0020] Furthermore, guide components are provided on both sides of the feeding plate and the grinding chamber. The guide components include electric push rods and connecting plates connected to their output ends. The output ends of the electric push rods on both sides of the feeding plate or the grinding chamber face each other. Multiple rotating shafts are rotatably connected to the bottom of the connecting plate. Sliding grooves are opened on the surface of the feeding plate or the grinding chamber corresponding to the position of the rotating shafts. A fixing plate is fitted on the outside of the rotating shafts. The horizontal height of the fixing plate is higher than the height of the material to be crushed when it is placed horizontally on the surface of the feeding plate or the grinding chamber. The bottom surface of the fixing plate is chamfered at the position where it connects with the rotating shaft.

[0021] The beneficial effects of this invention are:

[0022] Compared to traditional methods, this technical solution can remove irrelevant coatings from the surface of the SPC flooring during the crushing process. These coatings include UV layers, wear-resistant layers, decorative layers, and the base layer. After removing these irrelevant materials, the SPC flooring is crushed, which significantly reduces the amount of impurities mixed inside the flooring after crushing. This helps to reduce recycling costs and improve the quality of products made from recycled materials. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a side view of the present invention;

[0025] Figure 2 This is a perspective view of the present invention;

[0026] Figure 3 This is a three-dimensional view of the interior of the mixing chamber in this invention;

[0027] Figure 4 This is a perspective view of the crushing chamber, pulley 1, transmission belt 1, and feed inlet in this invention;

[0028] Figure 5 This is a perspective view of the feed plate, guide assembly, conveying assembly, peeling assembly, grinding assembly, and material guiding channel in this invention;

[0029] Figure 6 This is a perspective view of the feed plate and guide assembly in this invention;

[0030] Figure 7 This is a perspective view of the guide component in this invention;

[0031] Figure 8 This is a perspective view of the conveying component in this invention;

[0032] Figure 9 This is a side view of the mounting plate, the upper roller, and the lower roller in this invention;

[0033] Figure 10 This is a perspective view of the peeling component and the pretreatment component in this invention;

[0034] Figure 11 This is a side view of the peeling component and the pretreatment component in this invention;

[0035] Figure 12 This is a perspective view of the scraper in this invention;

[0036] Figure 13 This is a perspective view of the grinding component in this invention.

[0037] In the diagram: 1. Base; 11. Upright pole; 2. Crushing motor; 21. Crushing chamber; 22. Agitator shaft; 23. Pulley 1; 24. Transmission belt 1; 25. Agitator blade; 26. Fixed baffle; 27. Screening screen; 28. Inspection chamber door; 29. ​​Feed inlet; 3. Feed plate; 4. Guide assembly; 41. Electric push rod; 42. Connecting plate; 43. Rotating shaft; 44. Fixed disc; 45. Chamfered surface; 5. Conveying assembly; 51. Mounting plate 1; 52. Upper roller; 521. Conveying motor 1; 53. Lower roller; 531. 532. Belt 2; 533. Conveyor Motor 2; 54. Movable Groove; 55. Slider; 56. Fixed Block; 57. Lead Screw; 58. Turn Handle; 59. Digital Ruler 1; 6. Peeling Assembly; 61. Mounting Plate 2; 62. Scraper; 621. Connecting Rod; 622. Movable Seat; 623. Locking Column; 63. Strip Through Hole; 64. Digital Ruler 2; 7. Grinding Assembly; 71. Grinding Chamber; 72. Grinding Motor; 73. Grinding Disc; 74. Sinking Groove; 75. Guide Port; 8. Material Guide Channel; 9. Slide Groove. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1 , Figure 2 As shown, an SPC flooring crushing device includes a base 1. According to the conveying path of the board to be crushed, the base 1 is sequentially provided with a feeding plate 3, a conveying component 5, a pre-treatment component, a peeling component 6, a guide channel 8, and a crushing component. Based on the height of the crushing component and the requirement for horizontal conveying of the board to be crushed, uprights 11 are installed on the base 1 at the positions corresponding to the feeding plate 3, the conveying component 5, and the peeling component 6 to raise the height of the feeding plate 3, the conveying component 5, the peeling component 6, and the guide channel 8.

[0040] The conveying assembly 5 includes mounting plates 51 on both sides, and an upper roller 52 and a lower roller 53 located between the two mounting plates 51 with an upper and lower clearance fit. The distance between the upper roller 52 and the lower roller 53 is adjustable. The upper roller 52 and the lower roller 53 rotate in different directions under the action of external driving force. During the rotation, the material to be crushed located between them is conveyed to the peeling assembly 6. The peeling assembly 6 includes mounting plates 61 on both sides, and two scrapers 62 located between the two mounting plates 61 with an upper and lower clearance fit. The two scrapers 62 are inclined relative to the horizontally conveyed material to be crushed, and the distance between the two scrapers 62 is adjustable.

[0041] On the side of mounting plate 2 61 near the upper roller 52 and lower roller 53, pre-treatment components are provided at the positions corresponding to the two scrapers 62. The pre-treatment components include limiting blocks 65 and grinding rods 66. Grinding rods 66 are rotatably connected between the limiting blocks 65 on both sides, and an electric motor 67 is installed at at least one limiting block 65. The output end of the electric motor 67 is drivenly connected to the end of the grinding rod 66. The limiting blocks 65 are slidably connected to mounting plate 2 61. The grinding rods 66 grind the upper and lower corners of the horizontally conveyed material to be crushed to form notches. The scraper blade 62 cuts into the notch and peels and removes impurities from the top and bottom surfaces of the material to be crushed. The peeled material is pushed by the upper roller 52 and the lower roller 53 and enters the crushing assembly through the guide channel 8. The crushing assembly includes a crushing motor 2 and a crushing chamber 21. A stirring shaft 22 is rotatably installed inside the crushing chamber 21. The crushing motor 2 provides the kinetic energy required for the rotation of the stirring shaft 22. Multiple stirring blades 25 are sleeved on the surface of the stirring shaft 22. After the peeled material enters the crushing chamber 21 through the guide channel 8, it comes into contact with the stirring blades 25 and is crushed into fragments and particles.

[0042] According to the above technical solution, the material to be crushed is pushed into the feed plate 3 manually or by a conveyor line. The top surface of the feed plate 3 is horizontal, and the material to be crushed slides on the top surface of the feed plate 3 until one end of the material enters between the upper roller 52 and the lower roller 53. The upper roller 52 and the lower roller 53 rotate in opposite directions, thereby driving the material to be crushed to move towards the scraper 62. During the movement of the material to be crushed, the upper roller 52 and the lower roller 53 continuously apply pressure to the material to be crushed to prevent it from shaking or moving. During the movement, the material to be crushed will come into contact with the scraper 62 after passing through the pretreatment component. The pretreatment component can... The edges of the boards to be crushed are ground to create notches, allowing the scraper 62 to cut more smoothly and protecting it from direct rigid contact. The required coating thickness to be removed from the board's surface is measured beforehand, and the angle and distance of the scraper 62 from the board's surface are set accordingly. Once the board contacts the scraper 62, the coating is peeled off. The removed coating rolls up and falls off naturally. The peeled board then enters the crushing chamber 21 through the guide channel 8. There, it contacts and breaks into uniformly sized fragments and particles by the mixing blades 25. This method removes irrelevant coatings from the surface of SPC flooring, such as the UV layer, wear layer, decorative layer, and base layer. Removing these materials significantly reduces the amount of impurities mixed within the crushed board, lowering recycling costs and improving the quality of products made from the recycled materials.

[0043] As an example, such as Figure 3 , Figure 4 As shown, pulleys 23 are fitted onto the output end of the crushing motor 2 and the end of the stirring shaft 22 that protrudes outside the crushing chamber 21. A transmission belt 24 connects the two pulleys 23. A fixed baffle 26 is provided on the inner wall of the crushing chamber 21. The fixed baffle 26 has a notch corresponding to the position of the stirring blade 25. A screening screen 27 is provided at the bottom of the crushing chamber 21. After the crushing motor 2 starts, the kinetic energy output from its output end is transmitted to the stirring shaft 22 through the pulleys 23 and the transmission belt 24. The stirring shaft 22 drives the stirring blade 25 to rotate synchronously. The plate is crushed by pressure during contact with the stirring blade 25 and the blade. The crushed plate falls onto the screening screen 27 through the gap between adjacent stirring blades 25 and the notch at the fixed baffle 26. The stirring blade 25 and the blade will continue to squeeze the fragments that fall and accumulate at the bottom of the screening screen 27 until the size of the fragments or particles is smaller than the holes of the screening screen 27 and falls out.

[0044] It should be noted that the screening screen 27 has a semi-circular structure, and the axis of the screening screen 27 is the same as the axis of the stirring shaft 22. The length and diameter of the stirring blade 25 are slightly smaller than the diameter of the screening screen 27. This is beneficial for the stirring blade 25 and the blade to contact the fragments accumulated at the bottom of the screening screen 27, thereby improving the crushing efficiency, avoiding the accumulation and blockage of crushed particles, and improving the continuity and stability of the crushing process.

[0045] As an example, the top of the crushing chamber 21 in this solution has a flat opening, and a double maintenance door 28 is rotatably connected to the opening. After opening the maintenance door 28, the interior of the crushing chamber 21 can be maintained and inspected.

[0046] As an example, the crushing chamber 21 in this solution has a feed inlet 29 on the side, and the port of the guide channel 8 is connected to the feed inlet 29. The guide channel 8 is designed to be inclined, which is conducive to the peeled board entering the crushing chamber 21 through the guide channel 8.

[0047] As an example, such as Figure 5 , Figure 8 As shown, a first conveyor motor 521 and a second conveyor motor 533 are mounted on the outer wall of the mounting plate 51. Two horizontally arranged lower rollers 53 are positioned below the upper roller 52, with the upper roller 52 located between the two lower rollers 53. The shaft of the upper roller 52 is connected to the output end of the first conveyor motor 521. Pulleys 531 are fitted onto the ends of the two lower rollers 53, and a transmission belt 532 connects the two pulleys 531. The shaft of the lower roller 53 is connected to the output end of the second conveyor motor 533. When the first conveyor motor 521 and the second conveyor motor 533 are started, the upper roller 52 rotates, and the transmission belt 532 drives the two lower rollers 53 to rotate synchronously.

[0048] It should be noted that the surfaces of both the upper roller 52 and the lower roller 53 are covered with a rubber layer, which makes the contact between the upper roller 52 and the lower roller 53 on the plate located between them more compact during rotation, and can also provide greater driving force.

[0049] Further refinement of the above plan, such as... Figure 9As shown, a movable groove 54 is provided in the middle of the mounting plate 51. A slider 55 is vertically slidably connected inside the movable groove 54. A fixing block 56 is connected to the top of the movable groove 54 by screws. The two ends of the upper roller 52 are rotatably connected to the sliders 55 on both sides. The height of the upper roller 52 can be adjusted by changing the position of the sliders 55. A lead screw 57 is threaded from top to bottom in the middle of the fixing block 56. The bottom end of the lead screw 57 is rotatably connected to the slider 55, and the top end of the lead screw 57 is connected to a handle 58. When the thickness of the plate to be conveyed changes, the vertical distance between the upper roller 52 and the lower roller 53 needs to be adjusted. At this time, the handles 58 on both sides can be rotated simultaneously. During the rotation, the lead screw 57 will move downward about the fixing block 56. At this time, the sliders 55 on both sides are pushed and the sliders 55 also move downward along the movable groove 54 until they are adjusted to the appropriate position.

[0050] As an example, such as Figure 10 , Figure 12 As shown, the scraper 62 includes a main body and a cutting edge, and the angle between the cutting edge and the horizontally arranged plate to be crushed is between 30° and 45°. The cutting edge is made of alloy steel or cemented carbide to improve the wear resistance and cutting efficiency of the cutting edge.

[0051] Further refining the above scheme, a vertical through-hole 63 is provided in the middle of the mounting plate 61. Both ends of the main body are connected to movable seats 622 via connecting rods 621. The connecting rods 621 are round rods. After passing through the through-hole 63, the movable seats 622 are located outside the mounting plate 61. Locking pins 623 are symmetrically threaded at both ends of the movable seats 622 about the through-hole 63. The scraper 62, connecting rods 621, and movable seats 622 are an integral structure. When it is necessary to adjust the horizontal height and angle of the scraper 62, the locking pins 623 are loosened. At this time, the angle and horizontal height of the blade can be controlled by moving or rotating the movable seat 622. After determining the adjustment position, the locking pins 623 are retightened so that the end of the locking pins 623 abuts against the surface of the mounting plate 61, locking the position of the scraper 62.

[0052] Due to the material of the SPC floor coating, the scraper 62 is sometimes difficult to completely peel off, and the sharp edge of the board causes increased wear when the scraper 62 cuts in. Therefore, a pretreatment component is added to this technical solution.

[0053] As an example, such as Figure 10 , Figure 11As shown, a limiting groove 68 is formed through the mounting plate 61 at the corresponding limiting block 65. The limiting groove 68 is inclined relative to the horizontally conveyed material to be crushed. An elastic element 69 is installed in the limiting groove 68. The elastic element 69 can be a spring, a rubber pad, or an elastic airbag. After being driven by the elastic element 69, the limiting block 65 slides along the length of the limiting groove 68. When the grinding rod 66 is not in contact with the material to be crushed, the limiting block 65 is constrained to one end of the limiting groove 68 by the elastic element 69. As the grinding rod 66 comes into contact with the material to be crushed and is squeezed, the limiting block 65 drives the grinding rod 66 to gradually slide towards the other end of the limiting groove 68. A displacement sensor is also installed at the limiting block 65. The displacement sensor is connected to the start and stop of the electric motor 67.

[0054] When the sheet material to be crushed moves towards the peeling component 6 under the action of the conveying component 5, the end of the sheet material first contacts the grinding rod 66 of the pretreatment component. At least one electric motor 67 installed at a limit block 65 drives the grinding rod 66 to rotate, grinding the upper and lower corners of the sheet material. Since the limit block 65 is slidably connected to the mounting plate 61 and an elastic element 69 is installed in the limit groove 68, when the grinding rod 66 contacts and is squeezed against the sheet material, the limit block 65 will drive the grinding rod 66 to gradually slide towards the other end of the limit groove 68. The displacement sensor at the limit block 65 monitors the displacement of the grinding rod 66 in real time. When the grinding rod 66 moves to a certain stroke, the grinding of the corner of the sheet material is completed, forming a notch. Then, the displacement sensor controls the electric motor 67 to stop working. In this way, during the subsequent conveying process, the scraper 62 can cut into the notch and peel the coating on the top and bottom surfaces of the sheet material.

[0055] In the above technical solution, the conveying component 5 is responsible for smoothly conveying the sheet material to be crushed to the pre-treatment component, and after pre-treatment, it continues to convey the sheet material to the peeling component 6. Stable conveying by the conveying component 5 is a prerequisite for the pre-treatment component to accurately grind the corners of the sheet material to be crushed. The grinding operation of the pre-treatment component does not affect the conveying of the sheet material to be crushed by the conveying component 5; the two work together to ensure that the sheet material to be crushed is processed sequentially according to the process. The notch formed by the grinding in the pre-treatment component provides better entry conditions for the scraper 62 of the peeling component 6. The scraper 62 cuts into the notch, more smoothly removing the coating from the surface of the sheet material to be crushed, improving peeling efficiency and quality, and effectively solving the problem of potential contact between the scraper 62 and the end of the sheet material to be crushed, thus jointly completing the peeling work. Furthermore, the pre-treatment component reduces impurities in the sheet material entering the crushing component, reducing the workload of the crushing component. The crushing component can more efficiently crush the peeled sheet material into fragments and particles, improving the purity of the recycled material, enhancing the working effect of the crushing component, and improving the quality of the recycled material.

[0056] Further refining the above technical solution, the limiting groove 68 can be selected to be vertical or inclined to the horizontally conveyed plate to be crushed, each with its own applicable scenarios and advantages:

[0057] When the limiting groove 68 is inclined to the horizontally conveyed material to be crushed, it provides better guidance for grinding the corners of the material. During the conveying process, the corners of the material first contact the lower end of the grinding rod 66. As the material moves forward, the grinding area gradually expands, forming a more regular notch, which is beneficial for the subsequent cutting of the scraper 62. Moreover, the inclined setting allows the grinding pressure to be distributed over a larger area, which can avoid damage to the material due to excessive local pressure and reduce the wear of the grinding rod 66. For example, when grinding multi-layer composite SPC flooring, the distributed pressure can prevent the bottom material from cracking due to concentrated force, extending the service life of the grinding rod 66.

[0058] When the limiting groove 68 is perpendicular to the horizontally conveyed board to be crushed, the grinding rod 66 can more accurately control the grinding position and depth. When set vertically, the contact between the grinding rod 66 and the end corner of the board is more stable, and it is not easy to shake or deviate during the grinding process. This ensures that the shape of the notch produced by grinding is regular, providing a better foundation for the subsequent work of the scraper 62. For SPC flooring with a relatively smooth surface that is not easy to position, the grinding rod 66 can perform the grinding operation more stably.

[0059] It is important to note that the pretreatment component in this solution uses the grinding rod 66 to create a notch at the edge of the floorboard, allowing the scraper 62 to cut in more smoothly and more thoroughly, removing the UV layer, wear layer, decorative layer, and base coat from the floorboard surface. This reduces the impurity content in the crushed material and improves the quality of products manufactured from the recycled material. Furthermore, it avoids direct rigid contact between the scraper 62 and the floorboard edge, reducing the impact and wear on the scraper 62 during initial contact, extending its lifespan, and lowering equipment maintenance costs.

[0060] Furthermore, the displacement sensor controls the start and stop of the electric motor 67, preventing the grinding rod 66 from idling and achieving energy saving. At the same time, the coordinated work of the pretreatment component and other components improves the working efficiency of the entire crushing equipment, shortens the processing time of a single piece of flooring, and increases production efficiency.

[0061] Additionally, it should be noted that for thicker floors, using a larger diameter sander 66 ensures that the sander 66 can reach the corners of the floor and create a suitable notch, providing sufficient cutting space for the subsequent peeling with the scraper 62; while for thinner floors, a smaller diameter sander 66 can avoid over-sanding and prevent damage to the core layer of the floor.

[0062] As an example, such as Figure 9 , Figure 10As shown, mounting plate 51 and mounting plate 61 are respectively engraved with digital rulers 59 and 64. Digital ruler 59 is used to determine the distance between the upper roller 52 and the lower roller 53, and digital ruler 64 is used to determine the distance between the two scrapers 62, which is convenient for workers to adjust.

[0063] As an example, such as Figure 5 , Figure 13 As shown, a grinding component 7 is also provided between the peeling component 6 and the material guide channel 8. The grinding component 7 includes a grinding chamber 71 and two grinding motors 72 respectively disposed above and below the grinding chamber 71. The grinding chamber 71 is a rectangular cavity structure with openings at both ends. One end of the grinding chamber 71 faces the peeling component 6, and the other end of the grinding chamber 71 is connected to the material guide channel 8. After peeling, one end of the board will enter the grinding chamber 71 horizontally, and the bottom surface of the board will contact the bottom surface of the inner cavity of the grinding chamber 71. At this time, the other end of the board continues to move towards the material guide channel 8 under the driving action of the upper roller 52 and the lower roller 53.

[0064] Further refining the above scheme, the output ends of the two grinding motors 72 pass through the top and bottom of the grinding chamber 71, respectively, and each output end of the grinding motor 72 is connected to a grinding disc 73. The annular surface of the grinding disc 73 is chamfered, and the contact surfaces between the grinding disc 73 and the material are smooth. A recessed groove 74 is provided on the bottom surface of the inner cavity of the grinding chamber 71 corresponding to the lower grinding disc 73, and the lower grinding disc 73 is located in the recessed groove 74. By pre-setting the distance between the upper and lower grinding discs 73, when the material moves horizontally between them, the grinding disc 73 will grind the coating on the surface of the material that has not been completely removed through its annular surface, ensuring that the surface of the material moving into the crushing chamber 21 is free of coating or has minimal coating. Since the contact surfaces between the grinding disc 73 and the material are smooth, they will not hinder the movement of the material.

[0065] It is important to note that the distance between the upper and lower grinding discs 73 can be adjusted by increasing or decreasing the number of shims on the output end of the grinding motor 72. Simultaneously, an infrared sensor can be installed inside the grinding chamber 71, with its measurement height pre-set. The infrared sensor then links the start and stop of the grinding motor 72. When the board moves to the infrared sensor, if the coating on the board surface was not completely removed in the previous peeling assembly 6 (e.g., the coating at the end of the board did not fully contact the scraper 62 due to force), this portion of the coating will block the infrared light emitted by the infrared sensor. In this case, the grinding motor 72 starts, and the grinding discs 73 grind the corresponding area on the board. When the infrared sensor no longer detects any coating on the board surface, the grinding motor 72 stops. The grinding assembly 7 is used for fine grinding of the board surface, removing coating residue that the scraper 62 could not completely remove, ensuring a smooth surface. It can handle small areas that the scraper 62 cannot reach, ensuring a uniform surface throughout. At the same time, because the grinding motor 72 can be started when necessary and stopped when not needed, unnecessary energy consumption is reduced.

[0066] As an example, such as Figure 13 As shown, the side wall of the grinding chamber 71 is provided with a guide port 75. The guide port 75 is used to connect the cavity of the grinding chamber 71 with a vacuum cleaner. After connecting the vacuum cleaner, most of the dust generated in the grinding chamber 71 can be sucked away during the grinding process, so as to avoid adverse effects on the external working environment and the staff.

[0067] As an example, such as Figure 5 , Figure 6 , Figure 7 , Figure 13 As shown, guide components 4 are provided on both sides of the feed plate 3 and the grinding chamber 71. The guide components 4 include electric push rods 41 and connecting plates 42 connected to their output ends. The output ends of the electric push rods 41 located on both sides of the feed plate 3 or the grinding chamber 71 are arranged facing each other. Multiple rotating shafts 43 are rotatably connected to the bottom of the connecting plate 42. Slide grooves 9 are opened on the surface of the feed plate 3 or the grinding chamber 71 corresponding to the positions of the rotating shafts 43. When the output ends of the electric push rods 41 extend or retract, the rotating shafts 43 will also move along the slide grooves 9. A fixed plate 44 is sleeved on the outside of the rotating shafts 43. The horizontal height of the fixed plate 44 is higher than the height of the material to be crushed when it is placed horizontally on the top surface of the feed plate 3 or the bottom surface of the inner cavity of the grinding chamber 71. The bottom surface of the fixed plate 44 forms a chamfered surface 45 at the position where it connects with the rotating shaft 43. The chamfered surface 45 can facilitate contact between the two sides of the material and increase the contact area.

[0068] According to the above technical solution, when the plate to be crushed moves to the feed plate 3 or the grinding chamber 71, the electric push rod 41 automatically extends according to manual instructions or sensor sensing, so that the rotating shaft 43 and the chamfered surface 45 contact the two sides of the plate to be crushed. Since the rotating shaft 43 can rotate, it will not hinder the horizontal movement of the plate to be crushed. At the same time, the horizontal height of the fixed plate 44 is higher than the thickness of the plate to be crushed. Therefore, the fixed plate 44 can suppress the vertical swaying of the plate to be crushed during the movement, and is conducive to improving the stability of the plate to be crushed when it contacts the scraper 62, avoiding incomplete or excessive peeling. When the multiple fixed plates 44 and the rotating shaft 43 on both sides contact the two sides of the plate to be crushed, they can also limit the horizontal movement trajectory of the plate to be crushed. Moreover, the opening of the chute 9 is also conducive to reducing the horizontal height of the fixed plate 44. The fixed plate 44 can reduce the distance between itself and the plate to be crushed as much as possible as needed, and there will be no problem of the rotating shaft 43 and the fixed plate 44 colliding with the feed plate 3 or the grinding chamber 71.

[0069] As an example, a micro motor is installed above the connecting plate 42, and the output end of the micro motor is connected to one of the rotating shafts 43 below the connecting plate 42, thereby providing driving force to the rotating shaft 43. After the rotating shaft 43 contacts the side of the plate, it helps to guide the plate to move horizontally.

[0070] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. An SPC floor shredding device, characterized in that, The following components are arranged sequentially according to the conveying path of the material to be crushed: feed plate, conveying assembly, pretreatment assembly, peeling assembly, guide channel, and crushing assembly. The conveying assembly is used to convey the plate to be crushed; the peeling assembly includes two mounting plates on both sides, and two scrapers located between the two mounting plates with upper and lower gaps. The two scrapers are inclined relative to the horizontally conveyed plate to be crushed, and the distance between the two scrapers can be adjusted. The pretreatment components are provided on the side of the mounting plate near the upper and lower rollers, corresponding to the two scrapers. The pretreatment components include limiting blocks and grinding rods. The grinding rods are rotatably connected between the limiting blocks on both sides, and the limiting blocks are slidably connected to the mounting plate. The grinding rods grind the upper and lower corners of the horizontally conveyed plate to be crushed to form notches. The scrapers cut into the notches and peel off the top and bottom surfaces of the plate to be crushed. The peeled plate to be crushed enters the crushing component through the guide channel and is crushed.

2. The SPC floor shredding equipment according to claim 1, characterized in that, The crushing assembly includes a crushing motor and a crushing chamber. A stirring shaft is rotatably installed inside the crushing chamber. The crushing motor provides the kinetic energy required for the rotation of the stirring shaft. Multiple stirring blades are sleeved on the surface of the stirring shaft. After the peeled material enters the crushing chamber through the material guide channel, it comes into contact with the stirring blades and is crushed. The output end of the crushing motor and the end of the stirring shaft that protrudes outside the crushing chamber are both fitted with pulleys, and a transmission belt is connected between the two pulleys. The inner wall of the crushing chamber is provided with a fixed baffle, and the fixed baffle has a notch corresponding to the position of the stirring blade. A screening screen is provided at the bottom of the crushing chamber.

3. The SPC floor shredding equipment according to claim 1, characterized in that, The conveying assembly includes mounting plates on both sides, and an upper roller and a lower roller located between the two mounting plates with an upper and lower clearance fit. The upper roller and the lower roller rotate continuously after being driven and convey the material to be crushed located between them to the peeling assembly. The gap between the upper roller and the lower roller can be adjusted, and the upper roller and the lower roller rotate in different directions under the action of external driving force; A first conveyor motor and a second conveyor motor are mounted on the outer wall of the mounting plate. Two lower rollers are arranged horizontally below the upper roller. The upper roller is located between the two lower rollers. The axis of the upper roller is connected to the output end of the first conveyor motor. The ends of the two lower rollers are fitted with pulleys, and a transmission belt is connected between the two pulleys. The axis of the lower roller is connected to the output end of the second conveyor motor.

4. The SPC floor shredding equipment according to claim 3, characterized in that, The mounting plate has a movable groove in the middle, and a slider is slidably connected in the movable groove along the vertical direction. A fixed block is fixedly connected to the top of the movable groove. The two ends of the upper roller are rotatably connected to the sliders on both sides respectively. A lead screw is threaded from top to bottom to the middle of the fixed block. The bottom end of the lead screw is rotatably connected to the slider, and the top end of the lead screw is connected to a handle.

5. The SPC floor shredding equipment according to claim 1, characterized in that, The scraper includes a main body and a blade, and the angle between the blade and the horizontally arranged plate to be crushed is between 30° and 45°.

6. The SPC floor shredding equipment according to claim 5, characterized in that, The mounting plate has a vertical through hole in the middle. Both ends of the main body are connected to movable seats by connecting rods. The connecting rods pass through the through hole, and the two ends of the movable seats are symmetrically threaded with locking pins about the through hole.

7. The SPC floor shredding equipment according to claim 1, characterized in that, An electric motor is installed at at least one of the limiting blocks, and the output end of the electric motor is connected to the end of the grinding rod. The mounting plate 2 has a limiting groove through the corresponding limiting block. The limiting groove is inclined relative to the horizontally conveyed plate to be crushed. An elastic element is installed in the limiting groove. After being driven by the elastic element, the limiting block slides along the length of the limiting groove. The scraper cuts into the notch and removes impurities from the top and bottom surfaces of the material to be crushed. When the grinding rod is not in contact with the material to be crushed, the limiting block is constrained to one end of the limiting groove by the elastic element. As the grinding rod comes into contact with the material to be crushed and is squeezed, the limiting block drives the grinding rod to gradually slide towards the other end of the limiting groove. A displacement sensor is also installed at the limiting block, and the displacement sensor is connected to the start and stop of the electric motor.

8. The SPC floor shredding equipment according to claim 1, characterized in that, A grinding component is also provided between the peeling component and the material guiding channel. The grinding component includes a grinding chamber and two grinding motors respectively disposed above and below the grinding chamber. The grinding chamber is a rectangular cavity structure with openings at both ends. One end of the grinding chamber opens towards the peeling component, and the other end of the grinding chamber is connected to the material guiding channel. The output ends of the two grinding motors pass through the top and bottom of the grinding chamber, respectively, and each output end of the grinding motor is connected to a grinding disc. The annular surface of the grinding disc is chamfered, and the contact surface between the grinding disc and the board is a smooth surface.

9. The SPC floor shredding equipment according to claim 8, characterized in that, The side wall of the grinding chamber is provided with a passage for connecting the cavity of the grinding chamber to the vacuum cleaner.

10. An SPC floor shredding device according to claim 8, characterized in that, Guide components are provided on both sides of the feeding plate and the grinding chamber. The guide components include electric push rods and connecting plates connected to their output ends. The output ends of the electric push rods on both sides of the feeding plate or the grinding chamber face each other. Multiple rotating shafts are rotatably connected to the bottom of the connecting plate. The surface of the feeding plate or the grinding chamber is provided with a sliding groove corresponding to the position of the rotating shaft. A fixing plate is fitted outside the rotating shaft. The horizontal height of the fixing plate is higher than the height of the material to be crushed when it is placed horizontally on the surface of the feeding plate or the grinding chamber. The bottom surface of the fixing plate is chamfered at the position where it connects with the rotating shaft.

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