A sanding machine for processing wooden pallets

Abstract

The utility model discloses a kind of sanding machines for wooden pallet processing, related to tray processing technical field.A kind of sanding machines for wooden pallet processing, including polishing box and two conveying tables, two conveying tables are respectively fixedly connected at the both sides of polishing box, conveying mechanism is installed in the inside of two conveying tables, wood chip cleaning structure, wood chip cleaning structure is located on polishing box, small wood chip can be sucked into inside by the dust suction port of cleaning cylinder outer surface, and larger wood chip is swept to the bottom of polishing box, to realize the automatic cleaning and collection of wood chip, and further solve the problem that a large amount of wood chip is left on the top surface of tray after sanding process is finished, avoid the pollution to working environment caused by wood chip spilling when subsequent handling, store tray, do not need to operate tray one by one, greatly save time and manpower, improve the efficiency of entire production process, shorten production cycle, can better meet the demand of large-scale production.

Description

Technical Field

[0001] This utility model relates to the field of pallet processing technology, and in particular to a sanding machine for processing wooden pallets. Background Technology

[0002] Wooden pallets are pallets made from natural wood and are currently the most widely used type of pallet. They are horizontal platform devices used for assembling, stacking, handling, and transporting goods and products as unit loads. Chinese utility model patent, authorized announcement number "CN218194265U", discloses a sander for processing wooden pallets. This utility model is designed with a cylinder, support plate, grinding wheel, telescopic rod, driven roller, and conveyor belt. The telescopic rod is longer than the grinding wheel, which allows the driven roller to press the wooden board firmly before sanding. This makes the sanding of the wooden board more stable, improves the stability of the device, and enhances the sanding effect.

[0003] During the use of the above-mentioned technical solution, a large amount of sawdust will remain on the top surface of the pallet after the sanding process. If these sawdust residues are not cleaned in time, they will easily fall during subsequent handling and storage of the pallets, which will not only pollute the working environment and affect the cleanliness of the workshop, but may also drift into other equipment, posing a potential threat to the normal operation of the equipment. Manual cleaning requires operating on each pallet one by one, which consumes a lot of time and manpower in the case of mass production, seriously affecting the efficiency of the entire production process, resulting in a longer production cycle and failing to meet the needs of large-scale production. Therefore, we propose a sanding machine for processing wooden pallets. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a sanding machine for processing wooden pallets. This machine can solve the problem that after the sanding process, a large amount of sawdust will remain on the top surface of the pallet. If this residual sawdust is not cleaned in time, it will easily fall during subsequent handling and storage of the pallet, which will not only pollute the working environment and affect the cleanliness of the workshop, but may also drift into other equipment, posing a potential threat to the normal operation of the equipment. Manual cleaning requires operating on each pallet one by one. In the case of mass production, this consumes a lot of time and manpower, seriously affecting the efficiency of the entire production process, resulting in a longer production cycle and failing to meet the needs of large-scale production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sanding machine for processing wooden pallets, comprising: The grinding box and two conveyor tables are fixedly connected to both sides of the grinding box, and conveying mechanisms are installed inside the two conveyor tables. Wood chip cleaning structure, located on the sanding box; The wood chip cleaning structure includes an electric telescopic rod II, a lifting frame, two cleaning rollers, and a drive motor. The electric telescopic rod II is fixedly installed on the top of the sanding box. The telescopic end of the electric telescopic rod II slides into the interior of the sanding box and is fixedly connected to the lifting frame. Both cleaning rollers are rotatably connected to the interior of the lifting frame. The drive motor is fixedly installed on one side of the lifting frame. The output end of the drive motor rotatably extends into the interior of the lifting frame and is fixedly connected to the corresponding cleaning roller. Dust suction ports are opened on the outer surfaces of both cleaning rollers. Rotary sleeves are rotatably fitted on the ends of both cleaning rollers away from the drive motor. Synchronous pulleys are fixedly fitted on the ends of both cleaning rollers away from the drive motor. Synchronous belts are driven and fitted on the outer surfaces of the two synchronous pulleys.

[0006] Preferably, the wood chip cleaning structure further includes a chip discharge box, an exhaust fan, a collection box, a filter cover, and a connecting pipe. The chip discharge box is fixedly connected to one side of the sanding box, the exhaust fan is fixedly installed on the side of the chip discharge box away from the sanding box, the exhaust end of the exhaust fan extends into the interior of the chip discharge box, the filter cover is threaded onto the exhaust end of the exhaust fan, the collection box is slidably connected to the interior of the chip discharge box, and the connecting pipe communicates with the interior of the chip discharge box through a flexible hose. Both ends of the connecting pipe away from the chip discharge box are rotatably connected to the interior of the corresponding rotating sleeve.

[0007] Preferably, the lifting frame has two grinding wheel rollers rotatably connected inside. The rotating shafts at one end of the two grinding wheel rollers are fixedly sleeved with the same synchronous pulleys, and the outer surfaces of the synchronous pulleys on the two grinding wheel rollers are sleeved with the same synchronous belts.

[0008] Preferably, a rotating motor is fixedly installed on the side of the lifting frame away from the drive motor, and the output end of the rotating motor extends into the interior of the lifting frame and is fixedly connected to the corresponding grinding wheel.

[0009] Preferably, the top of the lifting frame is fixedly connected to two limiting rods, and the top ends of the two limiting rods slide through the top of the grinding box.

[0010] Preferably, two electric telescopic rods are fixedly installed on the top of the grinding box. The telescopic ends of the two electric telescopic rods slide into the interior of the grinding box and are fixedly connected to the limiting frame. The interior of the two limiting frames is rotatably connected to the limiting roller.

[0011] Preferably, the two limiting rollers are located at both ends of the lifting frame.

[0012] Preferably, the conveying mechanism is composed of two conveying rollers, a motor, and a conveyor belt.

[0013] Preferably, a support plate is fixedly connected inside the grinding box, and the support plate is located inside the conveyor belt.

[0014] Preferably, curtains are fixedly installed on both sides of the grinding box.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This sander for processing wooden pallets automatically cleans and collects wood chips by drawing small wood chips into the dust inlet on the outer surface of the cleaning roller, while larger wood chips are swept to the bottom of the sanding box. This solves the problem of a large amount of wood chips remaining on the top surface of the pallet after the sanding process, and avoids wood chips spilling and polluting the working environment during subsequent handling and storage of pallets. It eliminates the need to operate on each pallet individually, greatly saving time and manpower, improving the efficiency of the entire production process, shortening the production cycle, and better meeting the needs of large-scale production. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the grinding box structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the lifting frame of this utility model; Figure 4 This is a schematic cross-sectional view of the chip conveyor box of this utility model.

[0017] Reference numerals in the attached drawings: 1. Grinding box; 2. Conveying table; 3. Conveying mechanism; 4. Electric telescopic rod one; 5. Electric telescopic rod two; 6. Limiting rod; 7. Partition curtain; 8. Chip removal box; 9. Exhaust fan; 10. Collection box; 11. Support plate; 12. Limiting roller; 13. Limiting frame; 14. Drive motor; 15. Lifting frame; 16. Grinding wheel roller; 17. Rotating motor; 18. Cleaning roller; 19. Connecting pipe; 20. Rotating sleeve; 21. Synchronous belt; 22. Synchronous pulley; 23. Filter cover. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a sanding machine for processing wooden pallets, comprising: The grinding box 1 and two conveyor tables 2 are fixedly connected to both sides of the grinding box 1, and conveying mechanisms 3 are installed inside the two conveyor tables 2. Wood chip cleaning structure, which is located on sanding box 1; The wood chip cleaning structure includes an electric telescopic rod 5, a lifting frame 15, two cleaning rollers 18, and a drive motor 14. The electric telescopic rod 5 is fixedly installed on the top of the sanding box 1. The telescopic end of the electric telescopic rod 5 slides into the interior of the sanding box 1 and is fixedly connected to the lifting frame 15. The two cleaning rollers 18 are rotatably connected to the interior of the lifting frame 15. The drive motor 14 is fixedly installed on one side of the lifting frame 15. The output end of the drive motor 14 rotatably extends into the interior of the lifting frame 15 and is fixedly connected to the corresponding cleaning roller 18. Dust suction ports are opened on the outer surfaces of the two cleaning rollers 18. Rotary sleeves 20 are rotatably fitted on the ends of the two cleaning rollers 18 away from the drive motor 14. Synchronous pulleys 22 are fixedly fitted on the ends of the two cleaning rollers 18 away from the drive motor 14. Synchronous belts 21 are driven and fitted on the outer surfaces of the two synchronous pulleys 22.

[0023] The wood chip cleaning structure also includes a chip discharge box 8, an exhaust fan 9, a collection box 10, a filter cover 23, and a connecting pipe 19. The chip discharge box 8 is fixedly connected to one side of the sanding box 1. The exhaust fan 9 is fixedly installed on the side of the chip discharge box 8 away from the sanding box 1. The exhaust end of the exhaust fan 9 extends into the interior of the chip discharge box 8. The filter cover 23 is threaded onto the exhaust end of the exhaust fan 9. The collection box 10 is slidably connected to the interior of the chip discharge box 8. The connecting pipe 19 is connected to the interior of the chip discharge box 8 through a flexible hose. Both ends of the connecting pipe 19 away from the chip discharge box 8 are rotatably connected to the interior of the corresponding rotating sleeve 20.

[0024] The lifting frame 15 has two grinding wheel rollers 16 rotatably connected inside. The rotating shafts at one end of the two grinding wheel rollers 16 are fixedly sleeved with the same synchronous wheel 22. The outer surfaces of the synchronous wheel 22 on the two grinding wheel rollers 16 are sleeved with the same synchronous belt 21. A rotating motor 17 is fixedly installed on the side of the lifting frame 15 away from the drive motor 14. The output end of the rotating motor 17 extends into the interior of the lifting frame 15 and is fixedly connected to the corresponding grinding wheel roller 16. Two limiting rods 6 are fixedly connected to the top of the lifting frame 15. The top ends of the two limiting rods 6 slide through the top of the grinding box 1.

[0025] Two electric telescopic rods 4 are fixedly installed on the top of the grinding box 1. The telescopic ends of the two electric telescopic rods 4 slide into the interior of the grinding box 1 and are fixedly connected to the limiting frame 13. The interior of the two limiting frames 13 is rotatably connected to the limiting rollers 12. The two limiting rollers 12 are located at both ends of the lifting frame 15.

[0026] The conveying mechanism 3 is composed of two conveying rollers, a motor and a conveyor belt. A support plate 11 is fixedly connected inside the grinding box 1. The support plate 11 is located inside the conveyor belt. A curtain 7 is fixedly installed on both sides of the grinding box 1.

[0027] Furthermore, when using this device, the wooden pallet to be processed is placed on the conveyor belt of the conveyor platform 2 on one side of the sanding box 1. The conveyor belt smoothly transports the wooden pallet into the sanding box 1. After sanding, it is output from the conveyor belt of the conveyor platform 2 on the other side of the sanding box 1, completing the entire conveying process. The support plate 11 fixedly connected inside the sanding box 1 is located inside the conveyor belt, providing support for the conveyor belt and ensuring the stability of the conveying process.

[0028] When the two electric telescopic rods 4 are activated, their telescopic ends slide into the interior of the sanding box 1 and drive the limiting frame 13 to move. The limiting rollers 12, which are rotatably connected inside the limiting frame 13, move accordingly. The two limiting rollers 12 are located at both ends of the lifting frame 15. By adjusting the telescopic length of the electric telescopic rods 4, the limiting rollers 12 can limit the wooden pallets on the conveyor belt to prevent them from shifting during the sanding process and ensure sanding accuracy.

[0029] When the rotating motor 17 starts, its output end extends into the lifting frame 15 and drives the corresponding sanding roller 16 to rotate. Since the rotating shafts at one end of the two sanding rollers 16 are fixedly sleeved with synchronous pulleys 22, and the outer surfaces of the two synchronous pulleys 22 are connected with synchronous belts 21, when one sanding roller 16 rotates, it will drive the other sanding roller 16 to rotate synchronously through the synchronous belts 21 and synchronous pulleys 22, thus achieving sanding treatment on the surface of the wooden pallet. At the same time, the electric telescopic rod 5 starts, and its telescopic end slides into the sanding box 1 and drives the lifting frame 15 to move up and down. The top ends of the two limit rods 6 fixedly connected to the top of the lifting frame 15 slide through the top of the sanding box 1, which plays a role in limiting and guiding the movement of the lifting frame 15. By adjusting the height of the lifting frame 15, the sanding rollers 16 can be adapted to wooden pallets of different thicknesses to ensure the sanding effect.

[0030] During sanding, a large amount of sawdust is generated. The drive motor 14 starts, and its output drives the corresponding cleaning roller 18 to rotate. Synchronous pulleys 22 are fixedly sleeved at the ends of both cleaning rollers 18 furthest from the drive motor 14, and synchronous belts 21 are driven onto the outer surfaces of the two synchronous pulleys 22. Therefore, when one cleaning roller 18 rotates, it drives the other cleaning roller 18 to rotate synchronously. The suction port on the outer surface of the cleaning roller 18 can suck small sawdust generated during sanding into the cleaning roller 18, while larger sawdust is swept to the bottom of the sanding box 1. Simultaneously, after the exhaust fan 9 starts, a negative pressure is created inside the chip removal box 8, which sucks the sawdust from inside the cleaning roller 18 into the chip removal box 8 through the connecting pipe 19. After being filtered by the filter cover 23, the sawdust remains in the collection box 10, achieving the cleaning and collection of sawdust. The curtains 7 fixedly installed on both sides of the sanding box 1 prevent sawdust from splashing outside the sanding box 1 during sanding, keeping the working environment clean.

[0031] Small wood chips can be sucked into the dust inlet on the outer surface of the cleaning roller 18, while larger wood chips are swept to the bottom of the sanding box 1. This achieves automatic cleaning and collection of wood chips, thus solving the problem of a large amount of wood chips remaining on the top surface of the pallet after the sanding process. It also avoids wood chips spilling and polluting the working environment during subsequent handling and storage of the pallets. There is no need to operate on each pallet individually, which greatly saves time and manpower, improves the efficiency of the entire production process, shortens the production cycle, and can better meet the needs of large-scale production.

[0032] Structural Description: Sanding Box 1: As the main structure of the entire sander, it provides installation space and support for the internal components and supports the sanding process of the wooden pallet; Conveyor table 2: It is fixedly connected to both sides of the sanding box 1, and a conveyor mechanism 3 is installed inside. It is used to place wooden pallets to be processed and processed, and to transport the wooden pallets by means of the conveyor mechanism 3. Conveying mechanism 3: It consists of two conveying rollers, a motor and a conveyor belt. The motor drives the conveying rollers to rotate, which in turn drives the conveyor belt to circulate, so as to realize the smooth transport of wooden pallets between the conveying table 2 and the sanding box 1. Electric telescopic rod 4: It is fixedly installed on the top of the sanding box 1. Its telescopic end slides into the inside of the sanding box 1 and drives the limit frame 13 to move. By adjusting the telescopic length, the position of the limit roller 12 is controlled to limit the wooden pallet on the conveyor belt. Electric telescopic rod 25: It is fixedly installed on the top of the grinding box 1, and the telescopic end slides into the interior of the grinding box 1 and is fixedly connected to the lifting frame 15. It is used to drive the lifting frame 15 to move up and down to adjust the height of the grinding wheel roller 16 and the cleaning roller 18. Limiting rod 6: It is fixedly connected to the top of the lifting frame 15, and its top end slides through the top of the grinding box 1. It plays a limiting and guiding role in the movement of the lifting frame 15, ensuring the stability of the lifting process. Curtain 7: Fixedly installed on both sides of the sanding box 1, it can prevent wood chips from splashing to the outside of the sanding box 1 during sanding and keep the working environment clean; Chip box 8: Fixedly connected to one side of the sanding box 1, it provides space for the collection and storage of wood chips, and works with the exhaust fan 9, collection box 10, etc. to realize the function of wood chip cleaning; Exhaust fan 9: It is fixedly installed on the side of the chip box 8 away from the sanding box 1. The exhaust end extends into the inside of the chip box 8. After starting, it forms a negative pressure inside the chip box 8 and sucks the wood chips inside the cleaning roller 18 into the chip box 8 through the connecting pipe 19. Collection box 10: Slidably connected inside the chip box 8, used to collect wood chips after being filtered by the filter cover 23, for easy centralized processing; Support plate 11: It is fixedly connected inside the grinding box 1 and located inside the conveyor belt to provide support for the conveyor belt and ensure the stability of the conveying process; Limiting roller 12: Rotatably connected inside the limiting frame 13, the two limiting rollers 12 are located at both ends of the lifting frame 15 respectively, and move under the drive of the electric telescopic rod 4 to limit the wooden pallet on the conveyor belt and prevent it from shifting during the sanding process. Limiting frame 13: It is fixedly connected to the telescopic end of the electric telescopic rod 4, and internally rotatably connected to the limiting roller 12. Under the action of the electric telescopic rod 4, it drives the limiting roller 12 to move. Drive motor 14: It is fixedly installed on one side of the lifting frame 15, and its output end extends into the interior of the lifting frame 15 and is fixedly connected to the corresponding cleaning roller 18. It is used to drive the cleaning roller 18 to rotate and realize the cleaning of wood chips. Lifting frame 15: It is fixedly connected to the telescopic end of the electric telescopic rod 2 5, and internally rotates to connect two grinding wheel rollers 16 and two cleaning rollers 18. It moves up and down under the drive of the electric telescopic rod 2 5 to adjust the height of the grinding wheel rollers 16 and the cleaning rollers 18. Abrasive rollers 16: Rotatably connected inside the lifting frame 15. The rotating shafts at one end of the two abrasive rollers 16 are fixedly sleeved with synchronous pulleys 22. Synchronous rotation is achieved through the synchronous belt 21 and the synchronous pulleys 22 to sand the surface of the wooden pallet. Rotary motor 17: It is fixedly installed on the side of the lifting frame 15 away from the drive motor 14. Its output end extends into the interior of the lifting frame 15 and is fixedly connected to the corresponding grinding wheel 16. It is used to drive the grinding wheel 16 to rotate and realize the sanding function. Cleaning roller 18: Rotatably connected to the inside of the lifting frame 15, with a dust suction port on its outer surface. It rotates under the drive of the drive motor 14, sucking in small wood chips generated during sanding, while larger wood chips are swept to the bottom of the sanding box 1. Connecting pipe 19: It is connected to the inside of the chip box 8 through a flexible hose, and both ends are rotatably connected to the inside of the corresponding rotating sleeve 20. It is used to guide the wood chips inside the cleaning roller 18 into the chip box 8. Rotating sleeve 20: The rotating sleeve is mounted on the end of the two cleaning rollers 18 away from the drive motor 14 and is rotatably connected to the connecting pipe 19 to ensure the stable connection of the connecting pipe 19 when the cleaning rollers 18 rotate. Synchronous belt 21: The transmission sleeve is connected to the outer surface of the two synchronous pulleys 22 to transmit power and realize the synchronous rotation of the two grinding wheel rollers 16 or the two cleaning rollers 18; Synchronous pulley 22: It is fixedly sleeved on the rotating shaft at one end of the two grinding wheel rollers 16 and the end of the two cleaning rollers 18 away from the drive motor 14, and realizes synchronous rotation between the components through the synchronous belt 21; Filter cover 23: threaded onto the exhaust end of the exhaust fan 9, used to filter the wood chips sucked into the chip box 8, so that the wood chips remain in the collection box 10, preventing the wood chips from entering the exhaust fan 9 and affecting its normal operation.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sanding machine for processing wooden pallets, characterized in that, include: A grinding box (1) and two conveyor tables (2) are fixedly connected to both sides of the grinding box (1), and a conveying mechanism (3) is installed inside the two conveyor tables (2). Wood chip cleaning structure, the wood chip cleaning structure is located on the sanding box (1); The wood chip cleaning structure includes an electric telescopic rod (5), a lifting frame (15), two cleaning rollers (18) and a drive motor (14). The electric telescopic rod (5) is fixedly installed on the top of the grinding box (1). The telescopic end of the electric telescopic rod (5) slides into the interior of the grinding box (1) and is fixedly connected to the lifting frame (15). The two cleaning rollers (18) are rotatably connected to the interior of the lifting frame (15). Among them, the drive motor (14) is fixedly installed on one side of the lifting frame (15). The output end of the drive motor (14) rotates and extends into the interior of the lifting frame (15) and is fixedly connected to the corresponding cleaning roller (18). Dust suction ports are opened on the outer surfaces of the two cleaning rollers (18). Among them, the ends of the two cleaning rollers (18) away from the drive motor (14) are rotatably fitted with rotating sleeves (20), and the ends of the two cleaning rollers (18) away from the drive motor (14) are fixedly fitted with synchronous pulleys (22). The outer surfaces of the two synchronous pulleys (22) are fitted with synchronous belts (21).

2. The sanding machine for processing wooden pallets according to claim 1, characterized in that: The wood chip cleaning structure also includes a chip discharge box (8), an exhaust fan (9), a collection box (10), a filter cover (23), and a connecting pipe (19). The chip discharge box (8) is fixedly connected to one side of the sanding box (1), and the exhaust fan (9) is fixedly installed on the side of the chip discharge box (8) away from the sanding box (1). The exhaust end of the exhaust fan (9) extends into the interior of the chip discharge box (8). Among them, the filter cover (23) is threaded onto the exhaust end of the blower (9), the collection box (10) is slidably connected to the inside of the chip discharge box (8), the connecting pipe (19) is connected to the inside of the chip discharge box (8) through the hose, and both ends of the connecting pipe (19) away from the chip discharge box (8) are rotatably connected to the inside of the corresponding rotating sleeve (20).

3. The sanding machine for processing wooden pallets according to claim 1, characterized in that: The lifting frame (15) has two grinding wheel rollers (16) rotatably connected inside. The rotating shafts at one end of the two grinding wheel rollers (16) are fixedly sleeved with the same synchronous wheel (22). The outer surfaces of the synchronous wheel (22) on the two grinding wheel rollers (16) are sleeved with the same synchronous belt (21).

4. A sanding machine for processing wooden pallets according to claim 3, characterized in that: A rotating motor (17) is fixedly installed on the side of the lifting frame (15) away from the drive motor (14). The output end of the rotating motor (17) extends into the interior of the lifting frame (15) and is fixedly connected to the corresponding grinding wheel (16).

5. A sanding machine for processing wooden pallets according to claim 1, characterized in that: The top of the lifting frame (15) is fixedly connected to two limiting rods (6), and the top ends of the two limiting rods (6) slide through the top of the grinding box (1).

6. A sanding machine for processing wooden pallets according to claim 1, characterized in that: Two electric telescopic rods (4) are fixedly installed on the top of the grinding box (1). The telescopic ends of the two electric telescopic rods (4) slide into the interior of the grinding box (1) and are fixedly connected to the limit frame (13). The interior of the two limit frames (13) is rotatably connected to the limit roller (12).

7. A sanding machine for processing wooden pallets according to claim 6, characterized in that: The two limiting rollers (12) are located at both ends of the lifting frame (15).

8. A sanding machine for processing wooden pallets according to claim 1, characterized in that: The conveying mechanism (3) is composed of two conveying rollers, a motor and a conveyor belt.

9. A sanding machine for processing wooden pallets according to claim 8, characterized in that: The grinding box (1) is fixedly connected to a support plate (11), which is located inside the conveyor belt.

10. A sanding machine for processing wooden pallets according to claim 1, characterized in that: Both sides of the grinding box (1) are fixedly installed with curtains (7).

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