Stacking system and method for achieving rapid stacking of abrasive paper

Abstract

The application discloses a stacking system and method for quickly stacking sandpaper, and particularly relates to the technical field of sandpaper production stacking, which comprises a rack with an open design at the top and both sides, a first belt conveyor installed at the front end in the rack, and a second belt conveyor installed above the first belt conveyor. The first belt conveyor and the second belt conveyor are used for continuously and actively conveying sandpaper, and an adjusting mechanism is additionally arranged between the first belt conveyor and the rack. The first belt conveyor and the second belt conveyor are started to rotate to continuously push sandpaper forward, so as to quickly move and stack the sandpaper on the stacking mechanism. After the sandpaper is stacked to a predetermined number, a discharging assembly is started to press and compact the sandpaper in the stacking mechanism and then exit the stacking mechanism, so that the completed sandpaper can be conveniently transferred to the next stage and manually discharged, which is convenient to operate and reduces the difficulty of discharging.

Description

Technical Field

[0001] This invention relates to the field of sandpaper production and palletizing technology, specifically to a palletizing system and method for achieving rapid stacking of sandpaper. Background Technology

[0002] Sandpaper, also known as abrasive paper, is a material used for grinding surfaces such as metal and wood to make them smooth and shiny. It is usually made by gluing various abrasive grains onto a base paper. Depending on the abrasive material, there are many types, such as diamond sandpaper, artificial diamond sandpaper, and glass sandpaper.

[0003] After the sandpaper is produced in its entirety, it needs to be cut into different sizes so that it can be cut into different shapes and sizes for use in subsequent processing. Therefore, after the sandpaper is cut, a stacking machine is needed to continuously stack and centrally stack the sandpaper to facilitate further processing.

[0004] Publication (Announcement) No.: CN117142230A discloses a coated alumina sandpaper palletizing machine and palletizing method. In the transfer mechanism, a vacuum suction cup adsorbs and locks the coated alumina sandpaper product that has been detached from the rotary cutting. Then, the second servo motor switches its position to be above the palletizing mechanism. The vacuum suction cup is then rotated vertically 180 degrees and then rotated horizontally around its own axis by 5-10 degrees to release the adsorption and locking of the coated alumina sandpaper product. The coated alumina sandpaper product falls onto the material support plate. After the material support plate receives each coated alumina sandpaper product, the fourth vertical push rod drives the material support plate to move down, and the distance of the downward movement is equal to the thickness of the coated alumina sandpaper product.

[0005] The aforementioned palletizing machine achieves the palletizing action of sandpaper by continuously switching between two vacuum suction cups. There is a certain time gap between the two vacuum suction cups, which cannot achieve rapid and continuous palletizing action. After long-term operation, the conversion accuracy of the vacuum suction cup structure will decrease, which will interfere with the palletizing. At the same time, the palletizing machine does not have an active unloading function. After the subsequent palletizing is completed, the machine needs to be stopped and the sandpaper concentrated in the palletizing mechanism needs to be removed manually or with the help of other equipment, which increases the workload. Summary of the Invention

[0006] The purpose of this invention is to provide a stacking system and method for rapidly stacking sandpaper, in order to solve the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0008] This invention relates to a stacking system for rapidly stacking sandpaper, comprising a frame with an open design on the top and both sides, a first belt conveyor installed at the front end of the frame, and a second belt conveyor installed above the first belt conveyor. The first and second belt conveyors work together to continuously and actively transport the sandpaper, and an adjustment mechanism is added between the first belt conveyor and the frame to flexibly control the conveying height of the first belt conveyor.

[0009] A stacking mechanism is installed at the rear end of the frame. The stacking mechanism receives and stacks the sandpaper fed on the No. 1 belt conveyor. The stacking mechanism can adjust its storage space to accommodate sandpaper of different sizes. A feeding component is added to the stacking mechanism. The feeding component is used to clamp and move the stacked sandpaper out of the stacking mechanism for feeding.

[0010] Furthermore, the adjustment mechanism includes four slide rails arranged in a rectangular shape on both sides of the inner wall of the frame. Slide seats are installed on the slide rails and are connected to the side wall of the No. 1 belt conveyor. An electric module is installed on both sides of the inner wall of the frame at the middle position of two slide rails. The output end of the electric module is connected to the side wall of the No. 1 belt conveyor.

[0011] Furthermore, the No. 1 belt conveyor and the No. 2 belt conveyor are arranged in parallel, and the width of the No. 1 belt conveyor is greater than the width of the No. 2 belt conveyor. The No. 1 belt conveyor is located in the middle of the No. 2 belt conveyor.

[0012] Each of the four corners of the upper surface of the No. 1 belt conveyor is vertically installed with a slide rail. A connecting arm is slidably installed in the slide rail. The front end of the connecting arm is fixedly connected to the side wall of the No. 2 belt conveyor. A concave frame is installed across the middle of the upper surface of the No. 1 belt conveyor. An adjusting cylinder is fixedly inserted in the middle of the concave frame. A connecting piece is installed in the middle of the upper surface of the No. 2 belt conveyor. The output end of the adjusting cylinder is connected to the upper surface of the connecting piece.

[0013] Furthermore, a limiting plate is installed at the bottom front end of the first belt conveyor near the palletizing mechanism. The limiting plate is configured to cooperate with the palletizing mechanism and is used to compress and restrict the sandpaper on the palletizing mechanism.

[0014] Furthermore, the palletizing mechanism includes a palletizing plate mounted on one side of the frame via a bracket. Two adjustment zones are symmetrically opened through the two edges of the upper surface of the palletizing plate. A movable component is slidably installed in the adjustment zone, and a side pressure plate that slides on the palletizing plate is vertically fixed on the upper surface of the movable component. An adjustment seat is installed on one side of the adjustment zone on the lower surface of the palletizing plate. A positive and negative threaded screw is rotatably installed on the adjustment seat. Two screw nuts are symmetrically sleeved on the outside of the positive and negative threaded screw, and the screw nuts are slidably connected to the adjustment seat. The screw nuts are drivenly connected to the movable component. A No. 1 motor is installed on the top of the adjustment seat, and the output end of the No. 1 motor is drivenly connected to the positive and negative threaded screw.

[0015] The side pressure plate is aligned with the front end of the palletizing plate on the side closest to the No. 1 belt conveyor, and the side pressure plate is parallel and attached to the limiting plate. A pressure arm is slidably installed at the front end of the side pressure plate. The pressure arm is mounted on the No. 1 belt conveyor. Multiple guide wheels are rotatably installed on the lower surface of the pressure arm. The guide wheels are in contact with the upper surface of the No. 1 belt conveyor.

[0016] Furthermore, the unloading assembly includes a movable area located in the middle of the upper surface of the palletizing plate. A pallet is slidably inserted and installed in the movable area. A movable pressure plate is vertically installed on one side of the upper surface of the pallet. A top plate is installed on the top of the movable pressure plate facing the first belt conveyor. A top pressure plate is installed below the top plate. A downward pressure cylinder is fixedly inserted in the middle of the upper surface of the top plate. The output end of the downward pressure cylinder is connected to the upper surface of the top pressure plate. A palletizing area with four sides is formed on the palletizing plate through two side pressure plates, a limiting plate, and the movable pressure plate. A second electric module is installed in the middle of the lower surface of the palletizing plate on the side away from the first belt conveyor. A rotating frame is installed at the output end of the second electric module. The top of the rotating frame is rotatably connected to the lower surface of the movable pressure plate. A second motor is installed in the rotating frame. The output end of the second motor is connected to the movable pressure plate. The second motor drives the movable pressure plate and the pallet to rotate and transfer the sandpaper on them.

[0017] Furthermore, an adjustment plate of the same size is fitted to the front end of the movable pressure plate, and an adjustment cylinder is fixedly inserted through the middle position of the movable pressure plate. The output end of the adjustment cylinder is connected to the back of the adjustment plate for transmission.

[0018] Furthermore, piston barrels are installed on both sides of the palletizing plate. A plug is installed at the front end of the piston barrel by threaded engagement. A piston is slidably and sealed inside the plug. A drive rod connected to one side of the piston is slidably passed through the center of the plug. A first inlet pipe and a first outlet pipe are respectively connected and installed on one side of the top of the piston barrel. A second inlet pipe and a second outlet pipe are respectively connected and installed on the other side of the top of the piston barrel.

[0019] A cleaning chamber is slidably installed at the foremost end of the moving area, away from the movable pressure plate. This cleaning chamber moves within the moving area to perform scraping cleaning. Multiple sets of nozzles are installed side by side on both sides of the cleaning chamber. L-shaped metal strips are symmetrically installed on both sides of the rotating frame. The L-shaped metal strips are slidably and hiddenly installed at the bottom of the moving area, separated from the support plate and not in contact. The ends of the L-shaped metal strips are connected to the inner side of the cleaning chamber and the tail of the drive rod, respectively. An air passage is provided inside the L-shaped metal strip, which communicates with the inside of the cleaning chamber. A central chamber is connected to the side of the L-shaped metal strip near the piston barrel. This central chamber is connected to the first outlet pipe and the second outlet pipe through spring tubes.

[0020] A method for a palletizing system that enables rapid stacking of sandpaper, the palletizing method specifically including the following steps:

[0021] Step 1: First, adjust the distance between belt conveyor No. 1 and belt conveyor No. 2 according to the thickness of the sandpaper to adapt to sandpaper of different thicknesses for active conveying. Then start belt conveyor No. 1 and belt conveyor No. 2 to actively convey the sandpaper between them, pushing the sandpaper continuously into the stacking mechanism for stacking.

[0022] Step 2: Next, by adjusting the mechanism during continuous stacking, the No. 1 belt conveyor moves and adjusts, which can adapt to the height of the sandpaper stacking in the stacking mechanism, so that the sandpaper can be stacked continuously without interruption.

[0023] Step 3: The stacking space is then adjusted through the stacking mechanism, allowing for stacking adjustments to accommodate different sizes of sandpaper;

[0024] Step 4: Finally, the sandpaper is clamped together by the unloading component and removed from the stacking mechanism. Then, the sandpaper is rotated to facilitate the transfer and unloading in different directions, making the overall unloading process more convenient and faster, reducing the difficulty of manual operation. After the sandpaper is transferred and unloaded, the unloading component is reset so that the subsequent stacking work can be carried out.

[0025] Furthermore, step 4 also includes the ability of the feeding component to scrape and blow clean its movement path during a single feeding process, so as to prevent the accumulation of impurities from interfering with the reset of the feeding component.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention starts the No. 1 belt conveyor and the No. 2 belt conveyor to actively transport the sandpaper between them, pushing the sandpaper continuously into the stacking mechanism for stacking. During continuous stacking, the No. 1 electric module is started, which drives the No. 1 belt conveyor to move and adjust on the slide rail following the slide block. It can rise and adjust to the height of the sandpaper stacking in the stacking mechanism, so that the sandpaper can be stacked continuously without interruption.

[0028] 2. This invention features a stacking mechanism. When the No. 1 motor is started, the two moving parts and the side pressure plates on them move closer and further apart under the linkage of the positive and negative threaded screws and screw nuts, thereby adjusting the two sides of the stacking space. Then, the adjustment cylinder is started to push the adjustment plate forward a certain amount inside the movable pressure plate to adjust the stacking space. This allows for stacking adjustment in conjunction with sandpaper of different sizes.

[0029] 3. This invention features a feeding assembly. First, the downward-pressing cylinder is activated to push the top pressure plate down to contact the stacked sandpaper. With the cooperation of the pallet, the sandpaper is clamped together. Then, the second electric module is activated to pull the pallet, movable pressure plate, and top pressure plate out of the stacking mechanism. Subsequently, the second motor is activated to drive the movable pressure plate and pallet, carrying the sandpaper on them, to rotate. This facilitates feeding in different directions, making the overall feeding process more convenient and faster. At the same time, during the feeding process, the feeding assembly drives the cleaning chamber to move forward and backward within the moving area, pushing and scraping away impurities and foreign objects in the moving area to prevent impurities from accumulating and interfering with the resetting of the pallet.

[0030] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0031] Figure 1 This is the overall front view of the invention;

[0032] Figure 2 This is a schematic diagram showing the distribution of the No. 1 belt conveyor and the palletizing mechanism of the present invention;

[0033] Figure 3 This is a schematic diagram of the adjustment mechanism of the present invention;

[0034] Figure 4 This is a schematic diagram of the palletizing mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the pressure arm of the present invention being installed on the side pressure plate;

[0036] Figure 6 This is a schematic diagram of the side pressure plate of the present invention being installed on a palletizing plate;

[0037] Figure 7This is a schematic diagram of the feeding assembly of the present invention installed on a palletizing plate;

[0038] Figure 8 This is a schematic diagram of the feeding assembly structure of the present invention;

[0039] Figure 9 This is a schematic diagram showing the distribution of the pallet and top pressure plate of the present invention;

[0040] Figure 10 This is a schematic diagram showing the connection between the L-shaped metal strip, the piston barrel, and the cleaning chamber of the present invention;

[0041] Figure 11 This is a schematic diagram of the piston component of the present invention installed inside the piston barrel.

[0042] In the diagram: 1. Frame; 2. Belt conveyor No. 1; 3. Belt conveyor No. 2; 4. Slide rail; 5. Slide seat; 6. Electric module No. 1; 7. Slide track; 8. Connecting arm; 9. Concave frame; 10. Adjusting cylinder; 11. Connecting component; 12. Limiting plate; 13. Stacking plate; 14. Adjustment area; 15. Moving component; 16. Side pressure plate; 17. Adjusting seat; 18. Positive and negative threaded screw; 19. Screw nut; 20. Motor No. 1; 21. Pressure arm; 22. Guide wheel; 23. Moving area; 24. 25. Support plate; 26. Movable pressure plate; 27. Top plate; 28. Top pressure plate; 29. ​​Downward pressure cylinder; 20. Electric module No. 2; 30. Rotating frame; 31. Motor No. 2; 32. Adjusting plate; 33. Adjusting cylinder; 34. Piston barrel; 35. Plug; 36. Piston component; 37. Drive rod; 38. No. 1 inlet pipe; 39. No. 1 outlet pipe; 40. No. 2 inlet pipe; 41. No. 2 outlet pipe; 42. Cleaning chamber component; 43. Nozzle; 44. L-shaped metal strip; 45. Air passage; 46. Concentration chamber. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0044] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0045] Example 1: The present invention provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown, the sandpaper stacking system includes a frame 1 with an open design on the top and sides. A first belt conveyor 2 is installed at the front end of the frame 1, and a second belt conveyor 3 is installed above the first belt conveyor 2. The first belt conveyor 2 and the second belt conveyor 3 work together to continuously and actively transport the sandpaper. An adjustment mechanism is added between the first belt conveyor 2 and the frame 1 to flexibly control the conveying height of the first belt conveyor 2. A stacking mechanism is installed at the rear end of the frame 1. The stacking mechanism receives and stacks the sandpaper fed on the first belt conveyor 2 to achieve the stacking action. The stacking mechanism can adjust its storage space to accommodate sandpaper of different sizes. A feeding component is added to the stacking mechanism to clamp and move the stacked sandpaper out of the stacking mechanism for unloading.

[0046] In some disclosures, the adjustment mechanism includes four slide rails 4 arranged in a rectangular shape on both sides of the inner wall of the frame 1. Slide seats 5 are mounted on the slide rails 4 and connected to the side wall of the first belt conveyor 2. A first electric module 6 is installed on both sides of the inner wall of the frame 1, positioned between two slide rails 4. The output end of the first electric module 6 is connected to the side wall of the first belt conveyor 2. The first belt conveyor 2 and the second belt conveyor 3 are arranged parallel to each other, with the width of the first belt conveyor 2 greater than the width of the second belt conveyor 3. The first belt conveyor 2 is located in the middle of the second belt conveyor 3. Vertical mounting is installed at the four corners of the upper surface of the first belt conveyor 2. There is a slide rail 7, and a connecting arm 8 is slidably installed in the slide rail 7. The front end of the connecting arm 8 is fixedly connected to the side wall of the second belt conveyor 3. A concave frame 9 is installed across the middle of the upper surface of the first belt conveyor 2. An adjusting cylinder 10 is fixedly inserted in the middle of the concave frame 9. A connector 11 is installed in the middle of the upper surface of the second belt conveyor 3. The output end of the adjusting cylinder 10 is connected to the upper surface of the connector 11. A limiting plate 12 is installed at the bottom front end of the first belt conveyor 2 near the stacking mechanism. The limiting plate 12 is set in cooperation with the stacking mechanism. The limiting plate 12 is used to squeeze and limit the sandpaper on the stacking mechanism.

[0047] During adjustment: An adjustment mechanism is provided to establish a continuous connection between the sandpaper conveying volume on the No. 1 belt conveyor 2 and the No. 1 electric module 6. During continuous stacking, the No. 1 electric module 6 is activated, which drives the No. 1 belt conveyor 2 to move and adjust on the slide rail 4 following the slide block 5. It can adjust and rise according to the stacking height of the sandpaper in the stacking mechanism, so that the sandpaper can be stacked and stacked continuously without interruption. In addition, a limiting plate 12 is installed at the front end of the No. 1 belt conveyor 2. The limiting plate 12 is in close contact with the front end of the side pressure plate 16, which can continuously limit and press the sandpaper close to the bottom of the No. 1 belt conveyor 2, so that the sandpaper is neatly placed between the limiting plate 12, the side pressure plate 16 and the movable pressure plate 25.

[0048] It should be noted that during continuous conveying: First, the adjusting cylinder 10 is activated to adjust the thickness of the sandpaper, pushing the second belt conveyor 3 to move up and down under the guidance of the slide 7 for adjustment. This allows for fine-tuning of the distance between the first belt conveyor 2 and the second belt conveyor 3 to accommodate sandpaper of different thicknesses for active conveying. Then, the first belt conveyor 2 and the second belt conveyor 3 are activated to actively convey the sandpaper between them, pushing the sandpaper continuously into the stacking mechanism for stacking. The first belt conveyor 2 contacts the pressure arm 21, allowing the pressure arm 21 to move up and down with the first belt conveyor 2. The pressure arm 21 restricts the sandpaper on both sides of the first belt conveyor 2, ensuring that it enters the stacking mechanism stably without deviation. The pressure arm 21 can also move with the side pressure plate 16 of the stacking mechanism. Therefore, when the stacking space of the stacking mechanism is adjusted, the pressure arm 21 also moves along the first belt conveyor 2 to restrict the conveying space that matches the stacking space, making the sandpaper conveying more stable and ensuring the accuracy of stacking.

[0049] Among them, the electrical components such as No. 1 belt conveyor 2, No. 2 belt conveyor 3, adjustment mechanism, stacking mechanism and unloading assembly are all connected to switches via wires, and the switches are electrically connected to controllers. The specific structure of the controllers is not limited.

[0050] Example 2: Based on the palletizing mechanism provided in Example 1, this example provides a further technical solution for the palletizing mechanism.

[0051] like Figure 4 , Figure 5 and Figure 6 As shown, the palletizing mechanism includes a palletizing plate 13 mounted on one side of the frame 1 via a bracket. Two adjustment zones 14 are symmetrically opened through the two edges of the upper surface of the palletizing plate 13. A movable part 15 is slidably installed in the adjustment zone 14, and a side pressure plate 16 that slides on the palletizing plate 13 is vertically fixed on the upper surface of the movable part 15. An adjustment seat 17 is installed on one side of the adjustment zone 14 on the lower surface of the palletizing plate 13. A positive and negative threaded rod 18 is rotatably installed on the adjustment seat 17. Two threaded rod nuts 19 are symmetrically sleeved on the outside of the positive and negative threaded rod 18, and the threaded rod nuts 19 are slidably connected to the adjustment seat 17. The threaded rod nuts 19 are drivenly connected to the movable part 15. A No. 1 motor 20 is installed on the top of the adjustment seat 17, and the output end of the No. 1 motor 20 is drivenly connected to the positive and negative threaded rod 18.

[0052] When adjusting the stacking space: by setting up a stacking mechanism, starting the No. 1 motor 20, the two moving parts 15 and the side pressure plate 16 on them move closer and further apart under the linkage of the positive and negative threaded screw 18 and the screw nut 19, thereby realizing the adjustment of the two sides of the stacking space. Then, starting the adjustment cylinder 33, the adjustment plate 32 is pushed forward a certain amount inside the movable pressure plate 25 to adjust the stacking space, so that it can be used with sandpaper of different sizes to adjust the stacking.

[0053] The side pressure plate 16 is aligned with the front end of the palletizing plate 13 on the side closest to the first belt conveyor 2, and the side pressure plate 16 is parallel and attached to the limiting plate 12. A pressure arm 21 is slidably installed on the front end of the side pressure plate 16. The pressure arm 21 is mounted on the first belt conveyor 2. Multiple guide wheels 22 are rotatably installed on the lower surface of the pressure arm 21. The guide wheels 22 are in contact with the upper surface of the first belt conveyor 2.

[0054] Example 3: Based on the feeding assembly provided in Example 1, this example provides a further technical solution for the feeding assembly.

[0055] like Figures 7-11 As shown, the unloading assembly includes a moving area 23 located in the middle of the upper surface of the palletizing plate 13. A pallet 24 is slidably inserted into the moving area 23. A movable pressure plate 25 is vertically installed on one side of the upper surface of the pallet 24. A top plate 26 is installed on the top of the movable pressure plate 25 facing the first belt conveyor 2. A top pressure plate 27 is installed below the top plate 26. A downward pressure cylinder 28 is fixedly inserted in the middle of the upper surface of the top plate 26. The output end of the downward pressure cylinder 28 is connected to the upper surface of the top pressure plate 27. Through the two side pressure plates 16, the limiting plate 12, and the movable pressure plate 25, a palletizing area with four sides restricted is formed on the palletizing plate 13. A second electric module 29 is installed in the middle of the side away from the first belt conveyor 2. A rotating frame 30 is installed at the output end of the second electric module 29. The top of the rotating frame 30 is rotatably connected to the lower surface of the movable pressure plate 25. A second motor 31 is installed inside the rotating frame 30. The output end of the second motor 31 is connected to the movable pressure plate 25. The second motor 31 drives the movable pressure plate 25 and the support plate 24 to rotate and transfer the sandpaper on them. An adjustment plate 32 of the same size is attached to the front end of the movable pressure plate 25. An adjustment cylinder 33 is fixedly inserted in the middle of the movable pressure plate 25. The output end of the adjustment cylinder 33 is connected to the back of the adjustment plate 32.

[0056] During the unloading process: the unloading assembly first activates the pressing cylinder 28, pushing the top pressure plate 27 down to contact the stacked sandpaper, and clamps the sandpaper together with the pallet 24. Then, the second electric module 29 is activated to pull the pallet 24, the movable pressure plate 25, and the top pressure plate 27 out of the stacking mechanism. Then, the second motor 31 is activated to drive the movable pressure plate 25 and the pallet 24 to rotate with the sandpaper on them, which facilitates the transfer and unloading of the sandpaper in different directions, making the overall unloading more convenient and faster, reducing the difficulty of manual operation. After the sandpaper is transferred and unloaded, the pallet 24 and the movable pressure plate 25 are reset, and the subsequent stacking work can be carried out.

[0057] In this embodiment of the invention, piston barrels 34 are installed on both sides of the palletizing plate 13. A plug 35 is screwed onto the front end of the piston barrel 34. A piston 36 is slidably and sealed inside the plug 35. A drive rod 37 connected to one side of the piston 36 is slidably passed through the center of the plug 35. A first inlet pipe 38 and a first outlet pipe 39 are respectively connected and installed on one side of the top of the piston barrel 34. A second inlet pipe 40 and a second outlet pipe 41 are respectively connected and installed on the other side of the top of the piston barrel 34.

[0058] During cleaning: In a single unloading process, when the pallet 24 exits the moving area 23, the rotating frame 30 drives the L-shaped metal strip 44, the drive rod 37, and the cleaning chamber 42 to move accordingly. As the pallet 24 moves out of the reset moving area 23, the cleaning chamber 42 moves forward and backward within the moving area 23, pushing and scraping away impurities and foreign objects, improving the cleanliness of the moving area 23 and preventing impurity accumulation from interfering with the reset of the pallet 24. Furthermore, when the pallet 24 moves out and resets, the drive rod 37 pulls the piston 36 forward and backward within the piston barrel 34. During the forward movement... In the process, the piston 36 pushes and squeezes the gas in the piston barrel 34 to be discharged unidirectionally from the second outlet pipe 41 and enters the cleaning chamber 42 through the air passage 45. Finally, the gas is sprayed out through the nozzle 43 to clean the moving area 23. During the forward movement, the piston 36 draws in external gas through the first inlet pipe 38 to facilitate subsequent gas supply. When the pallet 24 is reset, the piston 36 is pushed to reset and squeeze the gas in the piston barrel 34 to be discharged from the first outlet pipe 39 and led out through the second inlet pipe 40. Therefore, when the pallet 24 is moved out and reset, the piston 36 can be driven to move continuously to provide gas for blowing and cleaning, ensuring the cleaning effect.

[0059] Among them, a one-way valve for controlling the one-way introduction of gas into piston barrel 34 is installed at the first inlet pipe 38 end, a one-way valve for controlling the one-way discharge of gas from piston barrel 34 is installed at the first outlet pipe 39 end, a one-way valve for controlling the one-way introduction of gas into piston barrel 34 is installed at the second inlet pipe 40 end, and a one-way valve for controlling the one-way discharge of gas from piston barrel 34 is installed at the second outlet pipe 41 end.

[0060] In some disclosures, a cleaning chamber 42 is slidably installed at the foremost end of the moving area 23 on the side away from the movable pressure plate 25. The cleaning chamber 42 has a cavity that communicates with the nozzle 43. The cleaning chamber 42 moves within the moving area 23 to achieve scraping cleaning. Multiple sets of nozzles 43 are installed side by side on both sides of the cleaning chamber 42. L-shaped metal strips 44 are symmetrically installed on both sides of the rotating frame 30. The L-shaped metal strips 44 are slidably and hidden in the bottom of the moving area 23, separated from the support plate 24 and not in contact. The ends of the L-shaped metal strips 44 are connected to the inner side of the cleaning chamber 42 and the tail of the drive rod 37, respectively. An air passage 45 is provided in the L-shaped metal strip 44, which communicates with the cleaning chamber 42. A concentrating chamber 46 is installed on the side of the L-shaped metal strip 44 near the piston barrel 34. The concentrating chamber 46 is connected to the first outlet pipe 39 and the second outlet pipe 41 through spring tubes, respectively.

[0061] Example 4: A method for a rapid sandpaper stacking system, the stacking method specifically includes the following steps:

[0062] Step 1: First, adjust the cylinder 10 according to the thickness of the sandpaper, and push the second belt conveyor 3 to move up and down under the guidance of the slide 7 to make adjustments. This allows for fine adjustment of the distance between the first belt conveyor 2 and the second belt conveyor 3 to adapt to sandpaper of different thicknesses for active conveying. Then, start the first belt conveyor 2 and the second belt conveyor 3 to actively convey the sandpaper between them, pushing the sandpaper continuously into the stacking mechanism for stacking.

[0063] Step 2: Next, by setting an adjustment mechanism, the conveying amount of sandpaper on the No. 1 belt conveyor 2 is continuously connected with the No. 1 electric module 6. When stacking continuously, the No. 1 electric module 6 is started, which drives the No. 1 belt conveyor 2 to move and adjust on the slide rail 4 with the slide block 5. It can adjust and rise according to the stacking height of the sandpaper in the stacking mechanism, so that the sandpaper can be stacked continuously without interruption. Furthermore, a limiting plate 12 is installed at the front end of the No. 1 belt conveyor 2. The limiting plate 12 is in close contact with the front end of the side pressure plate 16, which can continuously limit and press the sandpaper close to the bottom of the No. 1 belt conveyor 2, so that the sandpaper is neatly placed between the limiting plate 12, the side pressure plate 16 and the movable pressure plate 25.

[0064] Step 3: Then, by using the stacking mechanism, start the No. 1 motor 20. Under the linkage of the positive and negative threaded screws 18 and the screw nut 19, drive the two moving parts 15 and the side pressure plates 16 on them to move closer and further away from each other, thereby adjusting the two sides of the stacking space. Then, start the adjustment cylinder 33 to push the adjustment plate 32 to move forward a certain amount inside the movable pressure plate 25 to adjust the stacking space. This allows for stacking adjustment with sandpaper of different sizes.

[0065] Step 4: Finally, using the feeding assembly, firstly, the lowering cylinder 28 is activated, pushing the top pressure plate 27 down to contact the stacked sandpaper. In conjunction with the pallet 24, the sandpaper is clamped tightly. Then, the second electric module 29 is activated, pulling the pallet 24, movable pressure plate 25, and top pressure plate 27 out of the stacking mechanism. Next, the second motor 31 is activated, driving the movable pressure plate 25 and pallet 24, carrying the sandpaper, to rotate. This facilitates feeding in different directions, making the overall feeding process more convenient and faster, reducing the difficulty of manual operation. After the sandpaper feeding is completed, the pallet 24 and movable pressure plate 25 are reset, allowing for subsequent stacking. Step 4 also includes that during a single feeding process, when the pallet 24 exits the moving area 23, the rotating frame 30 drives the L-shaped metal strip 44, drive rod 37, and cleaning chamber 42 to move accordingly. As the pallet 24 moves out of and resets the moving area 23, the cleaning chamber 42 moves within the moving area 23. The internal mechanism moves forward and backward to reset, pushing and scraping away impurities and foreign objects in the moving area 23, improving the cleanliness of the moving area 23 and preventing impurity accumulation from interfering with the reset of the pallet 24. When the pallet 24 moves out and resets, the piston 36 is pulled forward and backward in the piston barrel 34 by the drive rod 37. During the forward movement, the piston 36 pushes and squeezes the gas in the piston barrel 34 to be discharged unidirectionally from the second outlet pipe 41 and enters the cleaning chamber 42 through the air passage 45. Finally, the gas is sprayed out through the nozzle 43 to clean the moving area 23. During the forward movement, the piston 36 draws in external gas through the first inlet pipe 38 to facilitate subsequent gas supply. When the pallet 24 resets, the piston 36 is pushed to reset and squeeze the gas in the piston barrel 34 to be discharged from the first outlet pipe 39 and led out through the second inlet pipe 40. Therefore, when the pallet 24 moves out and resets, the piston 36 can be driven to move continuously to provide gas for blowing and cleaning, ensuring the cleaning effect.

[0066] This invention provides a palletizing system and method for rapidly stacking sandpaper. The specific working principle is as follows: First, the slit sandpaper is sequentially placed onto the first belt conveyor 2, and the second belt conveyor 3 is controlled to move downwards according to the thickness of the sandpaper. The first belt conveyor 2 and the second belt conveyor 3 are started to rotate and continuously push the sandpaper forward, driving the sandpaper to move and stack rapidly on the palletizing mechanism. At the same time, the first electric module 6 of the adjustment mechanism is activated according to the amount of sandpaper placed, and the first belt conveyor 2 is linked to rise and adjust according to the height of the sandpaper stacking in the palletizing mechanism, ensuring the stable operation of the palletizing work.

[0067] Furthermore, the palletizing mechanism can be finely adjusted internally to accommodate sandpaper of different sizes. After a predetermined quantity is palletized, the unloading component is activated to concentrate and compact the sandpaper within the palletizing mechanism and remove it from the mechanism. This facilitates the transfer of the palletized sandpaper to the next stage and manual unloading, simplifying operation and reducing the difficulty of unloading. Simultaneously, the unloading component moves in tandem with the cleaning chamber 42 and the drive rod 37, which actively scrapes and blows clean the movement path of the unloading component. This prevents foreign objects and impurities from falling from the sandpaper from accumulating on the movement path of the unloading component and affecting its movement over time, greatly reducing the workload of subsequent manual maintenance.

[0068] In the description of this specification, the 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 present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The preferred embodiments of the present invention disclosed above are merely for the purpose of illustrating the present invention. The preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stacking system for rapid stacking of sandpaper, comprising a frame (1) with an open design on the top and both sides, characterized in that: A first belt conveyor (2) is installed at the front end of the frame (1), and a second belt conveyor (3) is installed above the first belt conveyor (2). The first belt conveyor (2) and the second belt conveyor (3) work together to continuously and actively convey sandpaper. An adjustment mechanism is added between the first belt conveyor (2) and the frame (1). The adjustment mechanism is used to flexibly control the conveying height of the first belt conveyor (2). A stacking mechanism is installed at the tail end of the frame (1). The stacking mechanism receives and stacks the sandpaper fed on the No. 1 belt conveyor (2) to realize the stacking action. The stacking mechanism can adjust its storage space to accommodate sandpaper of different sizes. A feeding component is added to the stacking mechanism. The feeding component is used to clamp and move the stacked sandpaper out of the stacking mechanism for feeding. The palletizing mechanism includes a palletizing plate (13) mounted on one side of the frame (1) via a bracket. Piston barrels (34) are installed on both sides of the palletizing plate (13). A plug (35) is screwed onto the front end of the piston barrel (34). A piston component (36) is slidably and sealed inside the plug (35). A drive rod (37) connected to one side of the piston component (36) is slidably passed through the center of the plug (35). A first inlet pipe (38) and a first outlet pipe (39) are respectively connected to one side of the top of the piston barrel (34). A second inlet pipe (40) and a second outlet pipe (41) are respectively connected to the other side of the top of the piston barrel (34). The unloading assembly includes a moving area (23) located in the middle of the upper surface of the pallet (13). A tray (24) is slidably inserted into the moving area (23). A movable pressure plate (25) is vertically installed on one side of the upper surface of the tray (24). A cleaning chamber (42) is slidably installed at the foremost end of the moving area (23) away from the movable pressure plate (25). The cleaning chamber (42) moves within the moving area (23) to perform scraping cleaning. Multiple sets of nozzles (43) are installed side by side on both sides of the cleaning chamber (42). A second electric module (29) is installed in the middle of the lower surface of the pallet (13) away from the first belt conveyor (2). A rotating frame (30) is installed at the output end, and L-shaped metal strips (44) are symmetrically installed on both sides of the rotating frame (30). The L-shaped metal strips (44) are slidably hidden in the moving area (23) and separated from the support plate (24) without contact. The ends of the L-shaped metal strips (44) are connected to the inner side of the cleaning chamber (42) and the tail of the drive rod (37) respectively. An air passage (45) is provided in the L-shaped metal strips (44). The air passages (45) are interconnected with the cleaning chamber (42). A centralized chamber (46) is connected to the side of the L-shaped metal strips (44) near the piston barrel (34). The centralized chamber (46) is connected to the first outlet pipe (39) and the second outlet pipe (41) respectively through spring tubes.

2. The palletizing system for rapid stacking of sandpaper according to claim 1, characterized in that: The adjustment mechanism includes four slide rails (4) arranged in a rectangular shape on both sides of the inner wall of the frame (1). A slide block (5) is installed on the slide rail (4) and the slide block (5) is connected to the side wall of the first belt conveyor (2). A first electric module (6) is installed on both sides of the inner wall of the frame (1) at the middle position of the two slide rails (4). The output end of the first electric module (6) is connected to the side wall of the first belt conveyor (2) for transmission.

3. The palletizing system for rapid stacking of sandpaper according to claim 1, characterized in that: The first belt conveyor (2) and the second belt conveyor (3) are arranged in parallel, and the width of the first belt conveyor (2) is greater than the width of the second belt conveyor (3). The first belt conveyor (2) is located in the middle of the second belt conveyor (3). The first belt conveyor (2) has vertically installed slide rails (7) at the four corners of its upper surface. A connecting arm (8) is slidably installed in the slide rail (7). The front end of the connecting arm (8) is fixedly connected to the side wall of the second belt conveyor (3). A concave frame (9) is installed across the middle of the upper surface of the first belt conveyor (2). An adjusting cylinder (10) is fixedly installed in the middle of the concave frame (9). A connector (11) is installed in the middle of the upper surface of the second belt conveyor (3). The output end of the adjusting cylinder (10) is connected to the upper surface of the connector (11).

4. The palletizing system for rapid stacking of sandpaper according to claim 1, characterized in that: The first belt conveyor (2) has a limiting plate (12) installed at the bottom front end of the side near the palletizing mechanism. The limiting plate (12) is set in cooperation with the palletizing mechanism and is used to squeeze and restrict the sandpaper on the palletizing mechanism.

5. The palletizing system for rapid stacking of sandpaper according to claim 1, characterized in that: Two adjustment zones (14) are symmetrically opened through the two sides of the upper surface of the palletizing plate (13). A moving part (15) is slidably installed in the adjustment zone (14), and a side pressure plate (16) that slides on the palletizing plate (13) is vertically fixed on the upper surface of the moving part (15). An adjustment seat (17) is installed on one side of the adjustment zone (14) on the lower surface of the palletizing plate (13). A positive and negative threaded rod (18) is rotatably installed on the adjustment seat (17). Two threaded rod nuts (19) are symmetrically sleeved on the outside of the positive and negative threaded rod (18), and the threaded rod nuts (19) are slidably connected to the adjustment seat (17). The threaded rod nuts (19) are connected to the moving part (15) in a transmission connection. A No. 1 motor (20) is installed on the top of the adjustment seat (17). The output end of the No. 1 motor (20) is connected to the positive and negative threaded rod (18) in a transmission connection. The side pressure plate (16) is aligned with the front end of the palletizing plate (13) on the side near the first belt conveyor (2), and the side pressure plate (16) is parallel to and attached to the limiting plate (12). A pressure arm (21) is slidably installed at the front end of the side pressure plate (16). The pressure arm (21) is mounted on the first belt conveyor (2). Multiple guide wheels (22) are rotatably installed on the lower surface of the pressure arm (21). The guide wheels (22) are in contact with the upper surface of the first belt conveyor (2).

6. The palletizing system for rapid stacking of sandpaper according to claim 1, characterized in that: The top of the movable pressure plate (25) is mounted with a top plate (26) facing the No. 1 belt conveyor (2). A top pressure plate (27) is mounted below the top plate (26), and a downward pressure cylinder (28) is fixedly inserted in the middle of the upper surface of the top plate (26). The output end of the downward pressure cylinder (28) is connected to the upper surface of the top pressure plate (27) for transmission. Through the two side pressure plates (16), the limiting plate (12) and the movable pressure plate (25), a stacking area with four sides restricted is formed on the stacking plate (13). The top of the rotating frame (30) is rotatably connected to the lower surface of the movable pressure plate (25), and a second motor (31) is installed inside the rotating frame (30). The output end of the second motor (31) is connected to the movable pressure plate (25). The second motor (31) drives the movable pressure plate (25) and the tray (24) to rotate and transfer the sandpaper on them.

7. The palletizing system for rapid stacking of sandpaper according to claim 6, characterized in that: The movable pressure plate (25) is fitted with an adjustment plate (32) of the same size at the front end, and an adjustment cylinder (33) is fixedly inserted in the middle of the movable pressure plate (25). The output end of the adjustment cylinder (33) is connected to the back of the adjustment plate (32) for transmission.

8. A method for implementing the rapid stacking and palletizing system for sandpaper as described in any one of claims 1 to 7, characterized in that: Specifically, the following steps are included: Step 1: First, adjust the distance between the No. 1 belt conveyor (2) and the No. 2 belt conveyor (3) according to the thickness of the sandpaper to adapt to the active conveying of sandpaper of different thicknesses. Then start the No. 1 belt conveyor (2) and the No. 2 belt conveyor (3) to actively convey the sandpaper between them, and push the sandpaper continuously into the stacking mechanism for stacking. Step 2: Next, by adjusting the mechanism during continuous stacking, the No. 1 belt conveyor (2) is moved and adjusted, which can adapt to the height of the sandpaper stacking in the stacking mechanism and adjust accordingly, so that the sandpaper can be stacked continuously without interruption. Step 3: The stacking space is then adjusted through the stacking mechanism, allowing for stacking adjustments to accommodate different sizes of sandpaper; Step 4: Finally, the sandpaper is clamped together by the unloading component and removed from the stacking mechanism. Then, the sandpaper is rotated to facilitate the transfer and unloading in different directions, making the overall unloading process more convenient and faster, reducing the difficulty of manual operation. After the sandpaper is transferred and unloaded, the unloading component is reset so that the subsequent stacking work can be carried out.

9. The method for a palletizing system for rapid stacking of sandpaper according to claim 8, characterized in that: Step 4 also includes scraping and blowing clean the movement path of the feeding component during a single feeding process to prevent impurities from accumulating and interfering with the reset of the feeding component.

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