A multi-layer sand planting and feeding system and process for multi-station sand paper processing

Abstract

The application discloses a multilayer sand planting and feeding system and process for multi-station sand paper processing, and particularly relates to the technical field of electrostatic sand planting, which comprises a belt conveyor, two baffle plates are symmetrically installed on one side of the upper surface of the belt conveyor, a sand planting mechanism is installed between the two baffle plates, and an assembling frame is installed across the other side of the upper surface of the belt conveyor. The distance between the upper pole plate and the lower pole plate of the sand planting mechanism can be finely adjusted. The sand particles are quickly screened through a screening assembly, the sand particles meeting the sand planting requirements are fed into two metering assemblies for metering, the sand particles after metering are fed into a mixing assembly for rapid mixing and then discharged for sand planting operation, so that the overall sand planting operation is coherent and stable. The metering assembly can obtain power transmission of the screening assembly, so that the metering assembly obtains a reciprocating movement state and can shake and level the sand particles in the metering process, thereby facilitating metering, and the sand planting equipment has high overall continuity and low manufacturing cost.

Description

Technical Field

[0001] This invention relates to the field of electrostatic sanding technology, specifically to a multi-layer sanding and feeding system and process for multi-station sandpaper processing. Background Technology

[0002] Electrostatic sanding technology, in contrast to traditional gravity sanding, refers to the use of a high-voltage electrostatic field and the electrical properties of the abrasive to make the abrasive a charged material that is adsorbed onto a substrate coated with binder, forming a sanding belt with excellent grinding performance. The abrasive grains in electrostatic sanding are attracted by the electrostatic field force. The shape of the abrasive grains varies, but generally speaking, the point of application of the electric field force is at the center of gravity of the abrasive grain. Therefore, the larger end of the abrasive grain faces inward, and the smaller, pointed end faces outward. The larger end is firmly glued to the belt base, while the pointed end faces outward, making the sandpaper and abrasive cloth sharp, which meets the usage requirements of coated abrasives.

[0003] Publication (Announcement) No.: CN102632467B discloses an ultra-high pressure electrostatic sand planting device. This device combines two different sand planting methods, electrostatic sand planting and gravity sand planting, in the same device. It can be used for electrostatic sand planting or gravity sand planting separately, or for both electrostatic sand planting or gravity sand planting simultaneously. The electrostatic sand planting or gravity sand planting is provided with sand particles by the electrostatic sand planting hopper system and the gravity sand planting hopper system, respectively.

[0004] The aforementioned electrostatic sand-planting equipment cannot complete synchronous sand-planting operations at multiple stations during the sand-planting process, resulting in low sand-planting efficiency. Furthermore, the sand particles required for sand-planting are directly fed onto the sand-feeding belt via the hopper. Because the sand particles are not screened, some larger particles fall onto the sand-feeding belt, causing a decrease in the uniformity of sand-planting on the sandpaper surface, affecting the subsequent use of the sandpaper and damaging the workpiece surface. Additionally, the lack of uniform mixing and metering of the fed sand particles results in poor sand-planting accuracy, easily leading to situations where the amount of sand particles fed is too large or too small, thus affecting the sand-planting precision. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-layer sanding and feeding system and process for multi-station sandpaper processing, so as to solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0007] This invention is a multi-layer sanding and feeding system for multi-station sandpaper processing, including a belt conveyor. Two baffles are symmetrically installed on one side of the upper surface of the belt conveyor, and a sanding mechanism is installed between the two baffles. An assembly frame is installed across the other side of the upper surface of the belt conveyor, and two feeding systems are symmetrically installed in the assembly frame. The two feeding systems are configured to cooperate with the sanding mechanism. The feeding systems uniformly transport sand particles to the belt conveyor to cooperate with the sanding mechanism to perform the sanding action.

[0008] The feeding system includes a top-open hopper mounted on one side of the top of the assembly frame via a bracket. A screening component is connected to the bottom of the hopper, and a mixing component is installed below the screening component. The mixing component and the screening component are linked. A metering component is installed on one side of the screening component. The metering component is connected to both the screening component and the mixing component. The metering component stably meters and conveys the screened sand particles and links with the screening component. The power output of the screening component completes the leveling action of the metering component.

[0009] Furthermore, the sand-planting mechanism includes a lifting platform slidably installed between two baffles. A cylinder is installed between the two baffles via a bracket. The output end of the cylinder is connected to the upper surface of the lifting platform via a transmission connection. Two upper electrode plates are symmetrically installed on the lower surface of the lifting platform via a bracket. Guide rollers are rotatably installed on both sides of the upper electrode plates on the lower surface of the lifting platform via a bracket. The sandpaper is transmitted through the guide rollers. Two lower electrode plates are installed inside the belt conveyor corresponding to the two upper electrode plates.

[0010] Furthermore, the inner walls of the two baffles are rectangularly provided with four slide tracks, and sliders are slidably installed in the slide tracks. These sliders are fixedly connected to the side wall of the lifting platform.

[0011] Furthermore, the screening component includes a first cylinder mounted on an assembly frame, a second cylinder with a through-hole design that rotates concentrically inside the first cylinder, with the front end of the second cylinder extending beyond the front end of the first cylinder. A gear ring is fixedly fitted around the front end of the second cylinder. A first geared motor is mounted on the top of one side wall of the first cylinder, and a gear is mounted on the output end of the first geared motor. The gear meshes with the gear ring for transmission. A receiving box extends concentrically from the tail end of the first cylinder, and the receiving box is connected to the tail end of the second cylinder. A discharge port is connected to the bottom of the receiving box. A discharge port is connected to the bottom of the first cylinder near the discharge port. A sealing cover is mounted on the front end of the first cylinder via a bracket. The sealing cover is rotatably and sealingly connected to the front end of the second cylinder. An inlet is connected to the top of the sealing cover, and both ends of the inlet are connected to the hopper and the inside of the second cylinder, respectively.

[0012] Furthermore, multiple screening holes are evenly distributed throughout the four sides of the second cylinder. A first auger blade is installed on the outer wall of the second cylinder inside the first cylinder, and the first auger blade is in close contact with the inner wall of the first cylinder. A drive shaft is concentrically mounted inside the second cylinder via a bracket. The front end of the drive shaft extends out of the center of the sealing cover, and the tail end extends out of the center of the receiving box. A second auger blade is fitted inside the second cylinder outside the drive shaft, and the second auger blade is in close contact with the inner wall of the second cylinder. A second geared motor is mounted on the side wall of the sealing cover via a bracket, and the output end of the second geared motor is connected to the drive shaft.

[0013] Furthermore, the mixing component includes a circular cavity with one side open. An end cap is detachably installed on the side wall of the cavity via bolts. A stirring shaft is rotatably inserted inside the cavity. Multiple stirring blades are evenly distributed around the outside of the stirring shaft. The front end of the stirring shaft extends out of the center of the end cap. A long feed port is connected to the bottom of the cavity. A first synchronous pulley is fitted on the front end of the stirring shaft, and a second synchronous pulley is fitted on the outside of the drive shaft. A synchronous belt is fitted between the first and second synchronous pulleys. A first pipe and a second pipe are connected to the top of the cavity.

[0014] Furthermore, the metering component includes a crossbeam mounted on an assembly frame, with two symmetrically oriented sliding areas through the crossbeam. A sliding block is slidably mounted within each sliding area. Dampers are installed between the sliding blocks and the sliding areas on both sides of the sliding blocks, and buffer springs are sleeved outside the dampers. A weighing module is mounted on the upper surface of the sliding block, and a weighing tank with an open top is mounted on the weighing module. An adjusting cover is slidably mounted on the top of the weighing tank. A material extraction pipe is connected to one side of the adjusting cover, and the material extraction pipe is connected to the discharge port via a spring tube. A discharge pipe is connected to the bottom of one side of the weighing tank. The tail ends of the discharge pipes on the two weighing tanks are respectively connected to pipe number one and pipe number two via spring tubes. A manual module is mounted on one side wall of the weighing tank, and a connecting arm is mounted on the output end of the manual module. The bottom of the connecting arm is connected to the adjusting cover.

[0015] Furthermore, a disc is installed at the tail of the drive shaft, and a kit is installed at the bottom of the side wall of the receiving box. A lifting arm is slidably installed inside the kit. A crank is rotatably installed on the outer wall of the disc off its center via a pin. The bottom of the crank is hinged to the top of the lifting arm. Two linkage arms are symmetrically hinged to the bottom of the lifting arm. The bottom of the linkage arms is hinged to the edge of the upper surface of the slide block. The reciprocating up and down movement of the lifting arm pushes the two slide blocks to reciprocate left and right within the sliding area to form a leveling action.

[0016] This invention also provides a multi-layer sanding and feeding process for multi-station sandpaper processing, wherein the sanding process specifically includes the following steps:

[0017] S1. First, the sand particles are put into the two hoppers. Since the sand planting equipment adopts a dual-station design, different sizes of sand particles can be put into the two hoppers to achieve sand planting work of different mesh sizes without interfering with each other, thus improving the sand planting efficiency.

[0018] S2. The spacing between the substrate and the belt conveyor is finely adjusted by the sand-planting mechanism to obtain a good sand-planting distance. It is easy to adjust and highly adaptable.

[0019] S3. The sand particles are fed into the screening component through the hopper for screening. The screening mechanism has a reasonable structure and stable operation. It can continuously screen the sand particles and can also continuously push and scrape clean the material, reducing the subsequent maintenance workload. Finally, the screened sand particles are sent into the metering component for metering.

[0020] S4. After the sand particles enter the metering component, the sand particles are weighed, and the full load status inside the metering component can be monitored, thereby realizing multiple measurements of the sand particle volume and weight, and accurately controlling the amount of sand particles. After a single measurement is completed, the sand particles are sent into the mixing component for mixing and then waiting to be discharged.

[0021] S5. Simultaneously, when the metering component is performing metering, it can move back and forth left and right to shake and level the sand particles inside the metering component, making it convenient for metering.

[0022] Furthermore, the sand planting process also includes: S6, after the sand particles enter the mixing component, the mixing component receives power from the screening component and quickly mixes and stirs the sand particles, and after the mixing and stirring is completed, the sand particles are discharged.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention features a screening component. When the second geared motor is activated, the rotating second auger blades gradually propel the sand particles forward. During this forward propulsion, the sand particles are screened through screening holes distributed on the surface of the second cylinder. The meshing of gears and gear rings drives the second cylinder to rotate as a whole. The rotating second cylinder and the sand particles generate relative motion. The rotation of the second cylinder, in conjunction with the second auger blades, accelerates the movement of the sand particles, improving screening efficiency and preventing clogging. Simultaneously, the rotation of the second cylinder drives the first auger blades to rotate, pushing the screened sand particles that fall into the first cylinder to the discharge port. This screening mechanism has a reasonable structure, stable operation, and can continuously screen sand particles.

[0025] 2. This invention incorporates a metering component, which weighs sand particles using a weighing module. An adjustable cover limits the storage space within the weighing tank, while a photoelectric sensor monitors the full load status of the tank. This allows for multiple measurements of sand particle volume and weight, enabling precise control of the sand particle quantity. Furthermore, the adjustable cover can be manually moved up and down to adjust the weighing tank to accommodate different volumes of storage space.

[0026] 3. In this invention, when the weighing tank is being weighed, the transmission shaft drives the disc to rotate, and the crank rod transmits the power of the disc to the lifting arm, causing the lifting arm to move up and down reciprocally within the constraints of the assembly. The lifting arm then drives the two linkage arms to move the slide back and forth within the sliding area. At the same time, the left and right movement of the slide is restricted by the damper and the buffer spring, so that the weighing tank remains stable during the left and right reciprocating motion and can level the sand particles inside the weighing tank, which is convenient for weighing.

[0027] 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

[0028] Figure 1 This is the overall front view of the invention;

[0029] Figure 2 This is a schematic diagram showing the distribution of the feeding system and sand-planting mechanism of the present invention;

[0030] Figure 3 This is a schematic diagram of the sand planting mechanism of the present invention installed on a belt conveyor;

[0031] Figure 4 This is a schematic diagram of the sand-planting mechanism of the present invention;

[0032] Figure 5 This is a schematic diagram of the feeding system of the present invention installed on a belt conveyor;

[0033] Figure 6 This is a schematic diagram of the feeding system of the present invention;

[0034] Figure 7 This is a schematic diagram showing the distribution of the screening and mixing components of the present invention;

[0035] Figure 8 This is a schematic diagram of the screening component structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the hybrid component structure of the present invention;

[0037] Figure 10 This is a schematic diagram of the metering component structure of the present invention;

[0038] Figure 11 This is a schematic diagram showing the distribution of the weighing tanks on the crossbeam according to the present invention;

[0039] Figure 12 This is a schematic diagram of the internal structure of the weighing tank of the present invention;

[0040] Figure 13 This is a schematic diagram of the connection between the lifting arm and the linkage arm of the present invention;

[0041] Figure 14 This is a schematic diagram showing the distribution of the adjusting cover inside the weighing tank according to the present invention.

[0042] In the diagram: 1. Belt conveyor; 2. Baffle; 3. Assembly frame; 4. Hopper; 5. Screening assembly; 501. No. 1 cylinder; 502. No. 2 cylinder; 503. Gear ring; 504. No. 1 geared motor; 505. Gear; 506. Receiving box; 507. Discharge port; 508. Discharge outlet; 509. Sealing cover; 5010. Feed inlet; 5011. Screening hole; 5012. No. 1 auger blade; 5013. Drive shaft; 5014. No. 2 auger blade; 5015. No. 2 geared motor; 6. Mixing assembly; 601. Circular cavity; 602. End cover; 603. Agitator shaft; 604. Agitator blade; 605. Long strip discharge port; 606. No. 1 synchronous pulley; 607. No. 2 608. Synchronous pulley; 609. Pipe No. 1; 6010. Pipe No. 2; 7. Metering assembly; 701. Crossbeam; 702. Sliding area; 703. Slide seat; 704. Damper; 705. Buffer spring; 706. Weighing module; 707. Weighing tank; 708. Adjusting cover; 709. Material extraction pipe; 7010. Material discharge pipe; 7011. Manual module; 7012. Connecting arm; 7013. Photoelectric sensor; 7014. Disc; 7015. Kit; 7016. Lifting arm; 7017. Crank rod; 7018. Linkage arm; 8. Lifting platform; 9. Cylinder; 10. Upper electrode plate; 11. Guide roller; 12. Lower electrode plate; 13. Slide rail; 14. Slider. 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 Figures 1-6As shown, a multi-layer sanding and feeding system for multi-station sandpaper processing includes a belt conveyor 1. Two baffles 2 are symmetrically installed on one side of the upper surface of the belt conveyor 1. A sanding mechanism is installed between the two baffles 2. An assembly frame 3 is installed across the other side of the upper surface of the belt conveyor 1. Two feeding systems are symmetrically installed in the assembly frame 3. The two feeding systems are configured to cooperate with the sanding mechanism. The feeding systems uniformly transport sand particles to the belt conveyor 1 to cooperate with the sanding mechanism to perform the sanding action.

[0046] The feeding system includes a hopper 4 with an open top, which is mounted on one side of the top of the assembly frame 3 via a bracket. A screening component 5 is installed at the bottom of the hopper 4. A mixing component 6 is installed below the screening component 5. The mixing component 6 is linked to the screening component 5. A metering component 7 is installed on one side of the screening component 5. The metering component 7 is connected to the screening component 5 and the mixing component 6. The metering component 7 stably meters and conveys the screened sand particles and forms a linkage with the screening component 5. The power output of the screening component 5 completes the shaking and leveling action of the metering component 7.

[0047] In this embodiment of the invention, the sand-planting mechanism includes a lifting platform 8 slidably installed between two baffles 2. A cylinder 9 is installed between the two baffles 2 via a bracket. The output end of the cylinder 9 is connected to the upper surface of the lifting platform 8. Two upper electrode plates 10 are symmetrically installed on the lower surface of the lifting platform 8 via a bracket. Guide rollers 11 are rotatably installed on both sides of the upper electrode plates 10 on the lower surface of the lifting platform 8 via a bracket. The sandpaper is transmitted through the guide rollers 11. Two lower electrode plates 12 are installed in the belt conveyor 1 corresponding to the two upper electrode plates 10. Four slide rails 13 are rectangularly opened on the inner wall of the two baffles 2. A slider 14 is slidably installed in the slide rails 13. The slider 14 is fixedly connected to the side wall of the lifting platform 8.

[0048] During sand planting: By activating the sand planting mechanism, the upper electrode plate 10 and the lower electrode plate 12 are activated, and the substrate coated with base adhesive is guided by the guide roller 11 to be evenly inserted between the upper electrode plate 10 and the lower electrode plate 12 to achieve electrostatic adsorption sand planting. At the same time, during operation, the cylinder 9 can be activated to push the lifting platform 8 to slide up and down under the guidance of the slide rail 13 and the slider 14, so that the distance between the upper electrode plate 10 and the lower electrode plate 12 and the distance between the substrate and the belt conveyor 1 can be finely adjusted, thereby obtaining a good sand planting distance. It is easy to adjust and highly adaptable.

[0049] In this system, all electrical components in the sand planting mechanism and the feeding system are connected to switches via wires, and the switches are electrically connected to controllers. The specific structure of the controllers is not restricted.

[0050] Example 2: Based on the filtering component 5 provided in Example 1, this example provides a further technical solution for the filtering component 5.

[0051] like Figure 7 and Figure 8 As shown, the screening component 5 includes a first cylinder 501 mounted on the assembly frame 3. A second cylinder 502, which is designed to pass through the first cylinder 501, is concentrically rotatably inserted into it. The front end of the second cylinder 502 extends beyond the front end of the first cylinder 501. A gear ring 503 is fixedly fitted onto the front end of the second cylinder 502. A first geared motor 504 is mounted on the top of one side wall of the first cylinder 501. A gear 505 is mounted on the output end of the first geared motor 504. The gear 505 meshes with the gear ring 503 for transmission. A receiving box 506 extends concentrically from the tail of the first cylinder 501. The receiving box 506 is connected to the tail of the second cylinder 502. The bottom of the receiving box 506 is connected to the discharge port 507, which is connected to the collection equipment through a pipe. The bottom of the first cylinder 501 is connected to the discharge port 507 and has a discharge port 508 connected to it. The front end of the first cylinder 501 is connected to the sealing cover 509 through a bracket. The sealing cover 509 is rotatably sealed to the front end of the second cylinder 502. The top of the sealing cover 509 is connected to the inlet 5010, which is connected to the hopper 4 and the inside of the second cylinder 502 at both ends, respectively.

[0052] During the screening process: the sand particles are fed into the inlet 5010 of the sealing cover 509 via the screening component 5. Then the sand particles enter the second cylinder 502. At this time, the second reduction motor 5015 is started, which drives the transmission shaft 5013 and the second auger blade 5014 to rotate. The rotating second auger blade 5014 pushes the sand particles forward step by step. During the forward movement, the sand particles are screened through the screening holes 5011 distributed on the surface of the second cylinder 502. Then, the unqualified sand particles are pushed into the front end of the second cylinder 502 and discharged through the receiving box 506 and the discharge port 507.

[0053] Furthermore, during operation, the No. 1 reduction motor 504 is started synchronously, and through the meshing transmission of gear 505 and gear ring 503, the No. 2 cylinder 502 is driven to rotate as a whole. The rotating No. 2 cylinder 502 and the sand particles generate relative motion. The rotating No. 2 cylinder 502, in cooperation with the No. 2 auger blade 5014, accelerates the movement of the sand particles, improves the screening efficiency, and avoids the problem of clogging.

[0054] At the same time, when the No. 2 cylinder 502 rotates, it drives the No. 1 auger blade 5012 to rotate, which can push the sand particles that fall into the No. 1 cylinder 501 after screening to the discharge port 508. The screening mechanism has a reasonable structure and stable operation, and can continuously screen sand particles. Furthermore, through the cooperation of the No. 1 auger blade 5012 and the No. 2 auger blade 5014, continuous pushing and scraping cleaning work can be achieved, reducing the subsequent maintenance workload. Finally, the sand particles are introduced into the weighing tank 707 for metering through the extraction pipe 709.

[0055] In this embodiment of the invention, a plurality of screening holes 5011 are uniformly opened through the four sides of the second cylinder 502. A first auger blade 5012 is provided on the outer wall of the second cylinder 502 inside the first cylinder 501. The first auger blade 5012 is in close contact with the inner wall of the first cylinder 501. A drive shaft 5013 is concentrically mounted inside the second cylinder 502 via a bracket. The front end of the drive shaft 5013 extends out of the center of the sealing cover 509 and the tail end extends out of the center of the receiving box 506. A second auger blade 5014 is sleeved on the outside of the drive shaft 5013 inside the second cylinder 502. The second auger blade 5014 is in close contact with the inner wall of the second cylinder 502. A second geared motor 5015 is mounted on the side wall of the sealing cover 509 via a bracket. The output end of the second geared motor 5015 is connected to the drive shaft 5013.

[0056] Example 3: Based on the metering component 7 provided in Example 1, this example provides a further technical solution for the metering component 7.

[0057] like Figures 10-14 As shown, the metering component 7 includes a crossbeam 701 mounted on the assembly frame 3. Two sliding areas 702 are symmetrically opened through the crossbeam 701. A slide block 703 is slidably installed in the sliding area 702. A damper 704 is installed between the two sides of the slide block 703 and the sliding area 702, and a buffer spring 705 is sleeved on the outside of the damper 704. A weighing module 706 is installed on the upper surface of the slide block 703. A weighing tank 707 with an open top is installed on the weighing module 706. An adjusting cover 708 is slidably installed on the top of the weighing tank 707. A material extraction pipe 709 is connected to one side of the adjusting cover 708. A material extraction pump for drawing sand particles into the weighing tank 707 is installed at the end of the material extraction pipe 709. Pipe 709 is connected to discharge port 508 via spring tube. A discharge pipe 7010 is connected to the bottom of one side of the weighing tank 707. A pump for extracting sand particles from the weighing tank 707 is installed at the end of the discharge pipe 7010. The tails of the discharge pipes 7010 on the two weighing tanks 707 are connected to pipe 609 and pipe 6010 respectively via spring tube. A manual module 7011 is installed on one side wall of the weighing tank 707. A connecting arm 7012 is installed at the output end of the manual module 7011. The bottom of the connecting arm 7012 is connected to the adjusting cover 708. A photoelectric sensor 7013 is installed on one side of the lower surface of the adjusting cover 708. The photoelectric sensor 7013 is connected to the pump on the extraction pipe 709.

[0058] During measurement: After the sand particles enter the weighing tank 707 via the metering component 7, the weighing module 706 weighs the sand particles, and the adjustment cover 708 can limit the storage space inside the weighing tank 707. At the same time, the photoelectric sensor 7013 can monitor the full load status inside the weighing tank 707, thereby realizing multiple measurements of the sand particle volume and weight, enabling precise control of the sand particle quantity. Furthermore, the adjustment cover 708 can be adjusted up and down via the manual module 7011, allowing the weighing tank 707 to obtain different volumes of storage space. After a single measurement is completed, the sand particles are sent through the discharge pipe 7010 into the first pipe 609 and the second pipe 6010, so that the sand particles are quickly sent into the circular cavity 601 for mixing and waiting to be discharged.

[0059] In this embodiment of the invention, a disc 7014 is installed at the tail of the drive shaft 5013, and a kit 7015 is installed at the bottom of the side wall of the receiving box 506. A lifting arm 7016 is slidably installed in the kit 7015. A crank 7017 is rotatably installed on the outer wall of the disc 7014 off-center from its center via a pin. The bottom of the crank 7017 is hinged to the top of the lifting arm 7016. Two linkage arms 7018 are symmetrically hinged to the bottom of the lifting arm 7016. The bottom of the linkage arms 7018 is hinged to the edge of the upper surface of the slide block 703. The reciprocating up and down movement of the lifting arm 7016 pushes the two slide blocks 703 to reciprocate left and right movement in the sliding area 702 to form a leveling action.

[0060] During weighing in the symmetrical weighing tank 707, the drive shaft 5013 drives the disc 7014 to rotate. The crank 7017 transmits the power of the disc 7014 to the lifting arm 7016, causing the lifting arm 7016 to move up and down reciprocally within the constraints of the kit 7015. The lifting arm 7016 then drives the two linkage arms 7018 to move, causing the slide 703 to move back and forth in the sliding area 702. At the same time, the damper 704 and the buffer spring 705 restrict the left and right movement of the slide 703, keeping the weighing tank 707 stable during the left and right reciprocating motion. This also helps to level the sand particles inside the symmetrical weighing tank 707, facilitating weighing.

[0061] Example 4: Based on the hybrid component 6 provided in Example 1, this example provides a further technical solution for the hybrid component 6.

[0062] like Figure 7 and Figure 9As shown, the mixing component 6 includes a circular cavity 601 with one side open. An end cap 602 is detachably bolted to the side wall of the cavity 601 at its open end. A stirring shaft 603 rotatably passes through the cavity 601. Multiple stirring blades 604 are evenly distributed around the outside of the stirring shaft 603, and the front end of the stirring shaft 603 rotatably extends out of the center of the end cap 602. A long strip discharge port 605 is connected to the bottom of the cavity 601, and a controller for flow rate control is installed at the end of the long strip discharge port 605. The device (e.g., a slide gate valve, a knife gate valve, or a conventional structure such as a cylinder-driven sliding adjustment plate installed in the long feed port 605 to change the internal feed flow space) is used to achieve this. A first synchronous wheel 606 is sleeved at the front end of the stirring shaft 603, and a second synchronous wheel 607 is sleeved outside the transmission shaft 5013. A synchronous belt 608 is sleeved between the first synchronous wheel 606 and the second synchronous wheel 607. A first pipe 609 and a second pipe 6010 are connected and installed at the top of the circular cavity 601.

[0063] During mixing: With the mixing component 6, sand particles enter the circular cavity 601 through pipe 609 and pipe 6010. Then, driven by the synchronous belt 608, the power of the transmission shaft 5013 is transmitted to the stirring shaft 603, which drives the multiple stirring blades 604 on the stirring shaft 603 to rotate and achieve rapid mixing of the sand particles entering the circular cavity 601, ensuring a rapid power response. After the sand particles in the circular cavity 601 are mixed, they are discharged through the long discharge port 605. At the same time, the discharge amount and opening and closing status of the long discharge port 605 can be controlled by the slide valve, so that the sand particle discharge is stable.

[0064] Example 5: A multi-layer sanding and feeding process for multi-station sandpaper processing, wherein the sanding process specifically includes the following steps:

[0065] S1. First, the sand particles are put into the two hoppers 4. Since the sand planting equipment adopts a dual-station design, different sizes of sand particles can be put into the two hoppers 4 to achieve sand planting work of different mesh sizes without interfering with each other, thus improving the sand planting efficiency.

[0066] S2. By activating the sand-planting mechanism, the upper electrode plate 10 and the lower electrode plate 12 are activated, and the substrate coated with base adhesive is guided by the guide roller 11 to uniformly enter between the upper electrode plate 10 and the lower electrode plate 12 to achieve electrostatic adsorption sand planting. At the same time, during operation, the cylinder 9 can be activated to push the lifting platform 8 to slide up and down under the guidance of the slide rail 13 and the slider 14, so that the distance between the upper electrode plate 10 and the lower electrode plate 12 and the distance between the substrate and the belt conveyor 1 can be finely adjusted, thereby obtaining a good sand planting distance. It is easy to adjust and highly adaptable.

[0067] S3. With the screening component 5 in place, sand particles are fed into the inlet 5010 of the sealed cover 509 via the hopper 4. The sand particles then enter the second cylinder 502. At this time, the second geared motor 5015 is started, driving the drive shaft 5013 and the second auger blade 5014 to rotate. The rotating second auger blade 5014 propels the sand particles forward. During this forward propulsion, the sand particles are screened through the screening holes 5011 distributed on the surface of the second cylinder 502. Unqualified sand particles are then pushed into the front end of the second cylinder 502 and discharged through the receiving box 506 and the discharge port 507. Simultaneously, the first geared motor 504 is started, and through the meshing of the gear 505 and the gear ring 503, the second cylinder 502 is driven to rotate as a whole. The rotating cylinder 502 generates relative motion with the sand particles. In conjunction with the second auger blade 5014, the rotating cylinder 502 accelerates the movement of the sand particles, improves screening efficiency, and avoids clogging. At the same time, the rotation of the cylinder 502 drives the first auger blade 5012 to rotate, which can push the sand particles that fall into the first cylinder 501 after screening to the discharge port 508. This screening mechanism has a reasonable structure and stable operation, and can continuously screen sand particles. Furthermore, the cooperation between the first auger blade 5012 and the second auger blade 5014 can achieve continuous pushing and scraping cleaning, reducing the subsequent maintenance workload. Finally, the sand particles are introduced into the weighing tank 707 for metering through the extraction pipe 709.

[0068] S4. With the metering component 7, after the sand particles enter the weighing tank 707, the weighing module 706 weighs the sand particles, and the adjusting cover 708 can limit the storage space inside the weighing tank 707. At the same time, the photoelectric sensor 7013 can monitor the full load status inside the weighing tank 707, thereby realizing multiple measurement of the sand particle volume and weight, and accurately controlling the amount of sand particles. The adjusting cover 708 can be adjusted up and down by the manual module 7011, so that the weighing tank 707 can obtain different volumes of storage space. After a single measurement is completed, the sand particles are sent into the first pipe 609 and the second pipe 6010 through the discharge pipe 7010, so that the sand particles are quickly sent into the circular cavity 601 for mixing and waiting to be discharged.

[0069] S5. Simultaneously, when weighing in the symmetrical weighing tank 707, the drive shaft 5013 drives the disc 7014 to rotate. The crank 7017 transmits the power of the disc 7014 to the lifting arm 7016, causing the lifting arm 7016 to move up and down reciprocally within the constraints of the kit 7015. The lifting arm 7016 then drives the two linkage arms 7018 to move, causing the slide 703 to move back and forth in the sliding area 702. At the same time, the damper 704 and the buffer spring 705 restrict the left and right movement of the slide 703, so that the weighing tank 707 remains stable during the left and right reciprocating motion and can level the sand particles inside the symmetrical weighing tank 707, facilitating weighing.

[0070] In this embodiment of the invention, the sand planting process further includes: S6, by providing a mixing component 6, sand particles enter the circular cavity 601 through a first pipe 609 and a second pipe 6010, and then, driven by a synchronous belt 608, the power of the transmission shaft 5013 is transmitted to the stirring shaft 603, which drives multiple stirring blades 604 on the stirring shaft 603 to rotate and achieve rapid mixing of the sand particles entering the circular cavity 601, ensuring rapid power response. After the sand particles in the circular cavity 601 are mixed, the sand particles are discharged through the long strip discharge port 605. At the same time, the discharge amount and opening and closing status of the long strip discharge port 605 can be controlled by a slide valve to ensure stable sand particle discharge.

[0071] This invention provides a multi-layer sand planting and feeding system and process for multi-station sandpaper processing. The specific working principle is as follows: First, the sand particles are put into two hoppers 4. At the same time, since the sand planting equipment adopts a dual-station design, different sizes of sand particles can be put into the two hoppers 4 to achieve sand planting work of different mesh sizes without interference, thus improving the sand planting efficiency.

[0072] Furthermore, the distance between the upper electrode plate 10 and the lower electrode plate 12 of the sand planting mechanism can be finely adjusted to ensure good adsorption of sand particles and guarantee the accuracy of sand planting. At the same time, the sand particles are quickly screened by the screening component 5, and the sand particles that meet the sand planting requirements enter the two metering components 7 for metering. After metering, the sand particles enter the mixing component 6 for rapid mixing and are then discharged for sand planting. This makes the overall sand planting operation continuous and stable. Moreover, the metering component 7 can receive power transmission from the screening component 5, enabling the metering component 7 to move back and forth, which can shake and level the sand particles during metering for easy metering. At the same time, the mixing component 6 can also receive power transmission from the screening component 5, which can stir and mix the screened sand particles, reducing costs and making the overall sand planting equipment highly continuous and low in manufacturing cost.

[0073] 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, 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.

[0074] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, 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 invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-layer sanding, feeding system for multi-station abrasive paper processing, comprising a belt conveyor (1), two baffles (2) are symmetrically installed on one side of the upper surface of the belt conveyor (1), characterized in that: a sanding mechanism is installed between the two baffles (2), and an assembly frame (3) is installed on the other side of the upper surface of the belt conveyor (1), two feeding systems are symmetrically installed in the assembly frame (3), and the two feeding systems are arranged in cooperation with the sanding mechanism, and the sand particles are uniformly conveyed to the belt conveyor (1) through the feeding system and the sanding mechanism cooperates with the sanding mechanism to perform the sanding action; the feeding system comprises a hopper (4) with an open top design installed on one side of the top of the assembly frame (3), a screening assembly (5) is communicatively installed at the bottom of the hopper (4), a mixing assembly (6) is installed below the screening assembly (5), the mixing assembly (6) and the screening assembly (5) are designed in linkage, and a metering assembly (7) is installed on one side of the screening assembly (5), the metering assembly (7) is connected with the screening assembly (5) and the mixing assembly (6) in communication, the metering assembly (7) stably meters and conveys the screened sand particles and forms a linkage with the screening assembly (5), and the power output of the screening assembly (5) completes the leveling action of the metering assembly (7); the screening assembly (5) comprises a No. 1 cylinder (501) installed on the assembly frame (3), a No. 2 cylinder (502) is coaxially and rotatably arranged in the No. 1 cylinder (501), the No. 1 cylinder (501) has a receiving box (506) coaxially extended at the tail, the receiving box (506) is in communication with the tail of the No. 2 cylinder (502), a discharge port (507) is communicatively installed at the bottom of the receiving box (506), a discharge port (508) is communicatively installed at the bottom of the No. 1 cylinder (501) near the discharge port (507), the mixing assembly (6) comprises a circular cavity (601) with an open design on one side, and the circular cavity (601) is communicatively installed with a No. 1 pipe (609) and a No. 2 pipe (6010) at the top; the metering assembly (7) comprises a cross beam (701) installed on the assembly frame (3), two sliding zones (702) are symmetrically and transversely arranged on the cross beam (701), a sliding seat (703) is slidably installed in the sliding zone (702), a damper (704) is installed between the two sides of the sliding seat (703) and the sliding zone (702), a buffer spring (705) is sleeved outside the damper (704), a weighing module (706) is installed on the upper surface of the sliding seat (703), and a weighing tank (707) with an open top design is installed on the weighing module (706), and the two sliding seats (703) are driven to reciprocally move left and right in the sliding zone (702) to form the leveling action. The weighing tank (707) top is slidably installed with an adjusting cover (708), the adjusting cover (708) is communicatedly installed with a material drawing pipe (709) on one side, the material drawing pipe (709) is communicated with the material discharging port (508) through a spring pipe, the weighing tank (707) bottom is communicatedly penetrated with a material discharging pipe (7010) on one side, the material discharging pipes (7010) on the two weighing tanks (707) tails are communicated with a first pipe (609) and a second pipe (6010) through spring pipes respectively, a manual module (7011) is installed on the side wall of the weighing tank (707), a connecting arm (7012) is installed at the output end of the manual module (7011), and the bottom of the connecting arm (7012) is connected with the adjusting cover (708).

2. A multi-station abrasive paper processing multi-layer sanding, feeding system according to claim 1, characterized in that: The sand planting mechanism comprises a lifting platform (8) slidably installed between two baffles (2), a gas cylinder (9) is installed between the two baffles (2) through a support, the output end of the gas cylinder (9) is in transmission connection with the upper surface of the lifting platform (8), two upper polar plates (10) are symmetrically installed on the lower surface of the lifting platform (8) through supports, and guide rollers (11) are rotatably installed on the lower surface of the lifting platform (8) on the two sides of the upper polar plates (10) through supports, the sand paper is conducted through the guide rollers (11), and two lower polar plates (12) are installed in the belt conveyor (1) corresponding to the two upper polar plates (10).

3. A multi-station abrasive paper processing multi-layer sanding, feeding system according to claim 2, characterized in that: Four slides (13) are formed in the inner walls of the two baffles (2) in a rectangular shape, and a sliding block (14) is slidably installed in the slide (13), and the sliding block (14) is fixedly connected with the side wall of the lifting platform (8).

4. The multi-station abrasive paper processing multi-layer sanding and feeding system according to claim 1, characterized in that: The front end of the second cylinder (502) is arranged outside the front end of the first cylinder (501), the outer front end of the second cylinder (502) is fixedly sleeved with a gear ring (503), a first speed reducer (504) is installed on the top of the side wall of the first cylinder (501), the output end of the first speed reducer (504) is installed with a gear (505), and the gear (505) is in meshing transmission connection with the gear ring (503). The front end of the first cylinder (501) is installed with a sealing cover (509) through a support, the sealing cover (509) is rotatably and sealingly connected with the front end of the second cylinder (502), an inlet (5010) is communicatedly installed on the top of the sealing cover (509), and the two ends of the inlet (5010) are communicated with a hopper (4) and the inside of the second cylinder (502) respectively.

5. A multi-station abrasive paper processing multi-layer sanding, feeding system according to claim 4, characterized in that: A plurality of screening holes (5011) are uniformly and penetratively formed in the circumferential side wall of the second cylinder (502), a first dragon blade (5012) is arranged in the first cylinder (501) outside the outer wall of the second cylinder (502), the first dragon blade (5012) is in abutting contact with the inner wall of the first cylinder (501), a transmission shaft (5013) is concentrically and rotatably installed in the second cylinder (502) through a support, the front end of the transmission shaft (5013) is rotatably arranged outside the center of the sealing cover (509), and the tail of the transmission shaft (5013) is rotatably arranged outside the center of the material collecting box (506). The transmission shaft (5013) is externally sleeved with a second Jiaolong blade (5014) in the second cylinder (502), the second Jiaolong blade (5014) is in contact with the inner wall of the second cylinder (502), the sealing cover (509) is provided with a second speed reducer (5015) on the side wall through a support, and the output end of the second speed reducer (5015) is in transmission connection with the transmission shaft (5013).

6. A multi-station abrasive paper processing multi-layer sanding, feeding system according to claim 5, characterized in that: The side wall of the circular cavity (601) is detachably provided with an end cover (602) at the opening thereof through bolts, a stirring shaft (603) is rotatably arranged in the circular cavity (601), a plurality of stirring blades (604) are uniformly distributed around the outer portion of the stirring shaft (603), and the front end of the stirring shaft (603) is rotatably arranged to extend out of the center of the end cover (602), a long strip discharge port (605) is communicatively arranged at the bottom of the circular cavity (601), a first synchronous wheel (606) is sleeved on the front end of the stirring shaft (603), a second synchronous wheel (607) is sleeved on the outer portion of the transmission shaft (5013), and a synchronous belt (608) is transmissionally sleeved between the first synchronous wheel (606) and the second synchronous wheel (607).

7. A multi-station abrasive paper processing multi-layer sanding, feeding system according to claim 6, characterized in that: The transmission shaft (5013) is provided with a disc (7014) at the tail portion, a sleeve (7015) is arranged at the bottom of the side wall of the material collecting box (506), a lifting arm (7016) is slidably arranged in the sleeve (7015), the disc (7014) is rotatably arranged on the outer wall thereof away from the center thereof through a pin shaft, the bottom of a crank rod (7017) is hingedly connected to the top of the lifting arm (7016), two linkage arms (7018) are symmetrically hingedly connected to the bottom of the lifting arm (7016), the bottom of the linkage arm (7018) is hingedly connected to the edge side of the upper surface of a sliding seat (703), and the reciprocating up-down movement of the lifting arm (7016) drives the two sliding seats (703) to reciprocatingly move left and right in the sliding area (702) to form a shaking leveling action.

8. A multi-station sand paper processing multi-layer sanding, feeding process, characterized in that: Based on the multi-layer sanding, feeding system for multi-station sand paper processing according to any one of claims 1 to 7, the sanding process specifically comprises the following steps: S1, first, the sand particles are put into two hoppers (4), and since the multi-layer sanding, feeding system adopts a double-station design, different sand particle sizes can be put into the two hoppers (4) to realize sanding work of different mesh numbers without interference, thereby improving the sanding efficiency; S2, the distance between the base material and the belt conveyor (1) is finely adjusted by the sanding mechanism, so as to obtain a good sanding distance; S3, the sand particles are sent into the screening assembly (5) through the hopper (4) for screening work, the screening assembly (5) has a reasonable structure and stable operation, can continuously screen the sand particles, and can realize continuous pushing and scraping cleaning work, thereby reducing the subsequent maintenance workload, and finally the screened sand particles are sent into the metering assembly for metering. S4, the sand grains enter the metering assembly (7) to weigh the sand grains, and the full load state in the metering assembly (7) can be monitored, so as to realize multiple metering of the volume and weight of the sand grains, accurately control the amount of sand grains, and after single metering is completed, the sand grains are sent into the mixing assembly (6) for mixing and then discharged; S5, while the metering assembly (7) is metering, the metering assembly (7) can realize reciprocating left and right movement to shake the sand grains in the metering assembly (7) to facilitate metering.

9. A multi-station multi-layer sanding process for sanding paper according to claim 8, characterized in that: The sand planting process further comprises: S6, after the sand grains enter the mixing assembly (6), the mixing assembly (6) receives power from the screening assembly (5) to quickly mix and stir the sand grains, and after mixing and stirring are completed, the sand grains are discharged.

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