Wood tray polishing device

Abstract

The utility model discloses a wood tray polishing device which comprises a conveying belt frame, three sets of conveying belts are fixedly connected into the conveying belt frame, two sets of first rotating shafts are rotationally connected between the conveying belts, first friction rollers are fixedly connected to the outer sides of the first rotating shafts, and a mounting frame is slidably connected to the middle of the conveying belt frame. A second rotating shaft is rotationally connected into the mounting frame, a second friction roller is fixedly connected to the outer side of the second rotating shaft, mounting rails are fixedly connected to the upper portions of the two sides of the conveying belt frame, mounting plates are slidably connected into the mounting rails, and a third rotating shaft is rotationally connected between the front mounting plate and the rear mounting plate. And the outer side of the third rotating shaft is fixedly connected with a third friction roller, the upper portion, the lower portion and the two sides of the wood tray can be polished at the same time, the polishing procedure is reduced, and the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pallet production, in particular to a wood pallet grinding device. Background Art

[0002] Pallets are important tools indispensable in logistics transportation and are widely used in fields such as warehousing, transportation, and packaging. Pallet production usually includes multiple links such as raw material preparation, mold design, injection molding (or other molding methods such as blow molding and pressing), post-treatment, and quality inspection.

[0003] When processing wood pallets, it is necessary to grind the outer surface of the wood pallets to prevent burrs from remaining on the surface of the wood pallets. However, traditional grinding devices can only grind one side at a time, and some devices can grind the upper and lower sides, but cannot grind the sides, resulting in more grinding processes for the wood pallets and reduced grinding efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wood pallet grinding device to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A wood pallet grinding device includes a conveyor belt frame. Three groups of conveyor belts are fixedly connected inside the conveyor belt frame. Two groups of first rotating shafts are rotatably connected between the conveyor belts. A first friction roller is fixedly connected to the outside of the first rotating shaft. An installation groove is opened in the middle of the conveyor belt frame. Moving frames are fixedly connected to both sides of the installation groove. A moving groove is opened inside the moving frame. A first moving block is slidably connected inside the moving groove. An installation frame is fixedly connected between the first moving blocks. A second rotating shaft is rotatably connected inside the installation frame. A second friction roller is fixedly connected to the outside of the second rotating shaft. Installation rails are fixedly connected to the upper parts of both sides of the conveyor belt frame. A second moving block is slidably connected inside the installation rail. An installation plate is fixedly connected between the second moving blocks on the left and right sides. A third rotating shaft is rotatably connected between the front and rear two groups of installation plates. A third friction roller is fixedly connected to the outside of the third rotating shaft.

[0006] Preferably, a second motor is fixedly connected to the lower part of the installation frame. The power end of the second motor is fixedly connected to the middle second rotating shaft. A second transmission belt is sleeved outside the installation frame through the upper parts of the adjacent two groups of second rotating shafts.

[0007] Preferably, two groups of first motors are fixedly connected to the front side of the front conveyor belt frame. The power end of the first motor is fixedly connected to the first rotating shaft. A first transmission belt is sleeved outside the conveyor belt frame through the rear sides of the two sides of the first rotating shaft.

[0008] Preferably, a third motor is fixedly connected to the front side of the mounting plate. The power end of the third motor is fixedly connected to the third rotating shaft in the middle. The other ends of two adjacent groups of the third rotating shafts penetrate through the outer side of the rear mounting plate, and a third transmission belt is sleeved thereon.

[0009] Preferably, a number of limiting pieces are fixedly connected to the outer sides of the first rotating shaft, the second rotating shaft and the third rotating shaft. The limiting pieces are arranged on both sides of the transmission belt.

[0010] Preferably, a first sliding rod is slidably connected inside the first moving block. Both ends of the first sliding rod are fixedly connected to the inner wall of the moving groove. One end of the first moving block is fixedly connected to a first spring. The first spring is sleeved on the outer side of the first sliding rod, and the other end of the first spring is fixedly connected to the moving groove. A second sliding rod is slidably connected inside the second moving block. Both ends of the second sliding rod are fixedly connected to the inner wall of the mounting rail. One end of the second moving block is fixedly connected to a second spring. The second spring is sleeved on the outer side of the second sliding rod, and the other end of the second spring is fixedly connected to the mounting rail.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. When the wooden pallet is placed on the conveyor belt, it moves to the lower part of the third friction roller through the combined use of the conveyor belt, the third friction roller, the conveyor belt rack, the first friction roller and the second friction roller. The third friction roller polishes the upper part of the wooden pallet. When the wooden pallet moves between the two conveyor belts, the first friction roller polishes the lower part of the wooden pallet. When the wooden pallet moves to the middle of the conveyor belt rack, the second friction roller polishes the two sides of the wooden pallet. It can polish the upper and lower parts and the two sides of the wooden pallet at the same time, reducing the polishing process and improving the polishing efficiency.

[0013] 2. When the wooden pallet moves to the two second friction rollers, the first moving block compresses the first spring by pushing the two second friction rollers, so that the second friction roller closely adheres to the wooden pallet. When the wooden pallet moves to the lower parts of the two third friction rollers, the second moving block stretches the second spring by pushing the two third friction rollers, so that the third friction roller closely adheres to the wooden pallet, improving the pressure between the friction roller and the wooden pallet through the combined use of the second friction roller, the first moving block, the first spring, the third friction roller, the second moving block and the second spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the first perspective of the present utility model;

[0015] Figure 2 is a schematic conveyor belt structure diagram of the second perspective of the present utility model;

[0016] Figure 3Schematic diagram of the third - perspective moving frame structure of the present utility model;

[0017] Figure 4 Schematic diagram of the fourth - perspective installation rail structure of the present utility model.

[0018] In the figure: 1, conveyor belt frame; 2, conveyor belt; 3, first motor; 4, first rotating shaft; 5, first friction roller; 6, first transmission belt; 7, installation groove; 8, moving frame; 9, moving groove; 10, first moving block; 11, first sliding rod; 12, first spring; 13, installation frame; 14, second motor; 15, second rotating shaft; 16, second friction roller; 17, second transmission belt; 18, installation rail; 19, installation plate; 20, second moving block; 21, third motor; 22, third rotating shaft; 23, third friction roller; 24, third transmission belt; 25, second sliding rod; 26, second spring; 27, limiting piece. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution: a wooden pallet grinding device, including a conveyor belt frame 1, three groups of conveyor belts 2 are fixedly connected inside the conveyor belt frame 1, two groups of first rotating shafts 4 are rotatably connected between the conveyor belts 2, a first friction roller 5 is fixedly welded on the outer side of the first rotating shaft 4, which is used for grinding the lower part of the wooden pallet, an installation groove 7 is opened in the middle of the conveyor belt frame 1, moving frames 8 are fixedly welded on both sides of the installation groove 7, a moving groove 9 is opened inside the moving frame 8, a first moving block 10 is slidably installed inside the moving groove 9, an installation frame 13 is fixedly welded between the first moving blocks 10, a second rotating shaft 15 is rotatably connected inside the installation frame 13, a second friction roller 16 is fixedly welded on the outer side of the second rotating shaft 15, which grinds both sides of the wooden pallet, installation rails 18 are fixedly welded on the upper parts of both sides of the conveyor belt frame 1, a second moving block 20 is slidably installed inside the installation rail 18, an installation plate 19 is fixedly welded between the second moving blocks 20 on the left and right sides, a third rotating shaft 22 is rotatably installed between the front and rear two groups of installation plates 19, and a third friction roller 23 is fixedly welded on the outer side of the third rotating shaft 22, which grinds the upper part of the wooden pallet;

[0021] A second motor 14 is installed on the lower flange of the mounting bracket 13. The power end of the second motor 14 is connected to the middle-side second rotating shaft 15 by a coupling. A second transmission belt 17 is sleeved outside the mounting bracket 13 through the upper parts of adjacent groups of second rotating shafts 15. The second motor 14 drives the middle-side second rotating shaft 15 to rotate, and drives the remaining second rotating shafts 15 to rotate through the second transmission belt 17. Two groups of first motors 3 are installed on the front flange of the front-side conveyor belt frame 1. The power end of the first motor 3 is connected to the first rotating shaft 4 by a coupling. A first transmission belt 6 is sleeved outside the conveyor belt frame 1 through the rear sides of the two-side first rotating shafts 4. The first motor 3 drives one group of first rotating shafts 4 to rotate, and drives the remaining first rotating shafts 4 to rotate through the first transmission belt 6. A third motor 21 is installed on the front flange of the mounting plate 19. The power end of the third motor 21 is connected to the middle-side third rotating shaft 22 by a coupling. A third transmission belt 24 is sleeved outside the rear-side mounting plate 19 through the other ends of adjacent groups of third rotating shafts 22. The third motor 21 drives the third rotating shaft 22 to rotate, and drives the remaining third rotating shafts 22 to rotate through the third transmission belt 24. A number of limiting pieces 27 are fixedly welded to the outside of the first rotating shaft 4, the second rotating shaft 15 and the third rotating shaft 22. The limiting pieces 27 are arranged on both sides of the transmission belt to prevent the transmission belt from moving. A first sliding rod 11 is slidably installed inside the first moving block 10. Both ends of the first sliding rod 11 are fixedly welded to the inner wall of the moving groove 9. One end of the first moving block 10 is fixedly welded with a first spring 12. The first spring 12 is sleeved outside the first sliding rod 11. The other end of the first spring 12 is fixedly welded to the moving groove 9. When the wooden pallet moves to the two-side second friction rollers 16, by pushing the two-side second friction rollers 16, the first moving block 10 compresses the first spring 12, so that the second friction rollers 16 are closely attached to the wooden pallet. A second sliding rod 25 is slidably installed inside the second moving block 20. Both ends of the second sliding rod 25 are fixedly welded to the inner wall of the mounting rail 18. One end of the second moving block 20 is fixedly welded with a second spring 26. The second spring 26 is sleeved outside the second sliding rod 25. The other end of the second spring 26 is fixedly welded to the mounting rail 18. When the wooden pallet moves to the lower parts of the two-side third friction rollers 23, by pushing the two-side third friction rollers 23, the second moving block 20 stretches the second spring 26, so that the third friction rollers 23 are closely attached to the wooden pallet.

[0022] Working principle: When in use, place the wooden pallet on the conveyor belt 2. When it moves to the lower part of the third friction roller 23, the third motor 21 drives the third rotating shaft 22 to rotate, and drives the other third rotating shafts 22 to rotate through the third transmission belt 24. The third friction roller 23 polishes the upper part of the wooden pallet. When the wooden pallet moves between the two groups of conveyor belts 2, the first motor 3 drives a group of first rotating shafts 4 to rotate, and drives the other first rotating shafts 4 to rotate through the first transmission belt 6, so that the first friction roller 5 polishes the lower part of the wooden pallet. When the wooden pallet moves to the middle of the conveyor belt rack 1, the second motor 14 drives the middle second rotating shaft 15 to rotate, and drives the other second rotating shafts 15 to rotate through the second transmission belt 17. The second friction roller 16 polishes both sides of the wooden pallet.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wooden pallet grinding device, comprising a conveyor belt frame (1), characterized in that: The conveyor belt frame (1) is internally fixedly connected with three groups of conveyor belts (2), two groups of first rotating shafts (4) are rotatably connected between the conveyor belts (2), the first rotating shafts (4) are fixedly connected with first friction rollers (5) on the outside, a mounting groove (7) is provided in the middle of the conveyor belt frame (1), both sides of the mounting groove (7) are fixedly connected with moving frames (8), a moving groove (9) is provided inside the moving frame (8), a first moving block (10) is slidably connected inside the moving groove (9), and mounting frames (13) are fixedly connected between the first moving blocks (10), A second rotating shaft (15) is rotatably connected inside the mounting frame (13), a second friction roller (16) is fixedly connected to the outside of the second rotating shaft (15), mounting rails (18) are fixedly connected to the upper parts of both sides of the conveyor frame (1), a second moving block (20) is slidably connected inside the mounting rails (18), a mounting plate (19) is fixedly connected between the second moving blocks (20) on the left and right sides, a third rotating shaft (22) is rotatably connected between the front and rear groups of the mounting plates (19), and a third friction roller (23) is fixedly connected to the outside of the third rotating shaft (22).

2. A wooden pallet grinding device according to claim 1, characterized in that: A second motor (14) is fixedly connected to the lower portion of the mounting frame (13); a power end of the second motor (14) is fixedly connected to a middle second rotating shaft (15); upper portions of two adjacent groups of the second rotating shafts (15) penetrate the outer side of the mounting frame (13) and are sleeved with a second transmission belt (17).

3. A wooden pallet grinding device according to claim 1, characterized in that: The front side of the conveyor belt frame (1) is fixedly connected to two sets of first motors (3), the power ends of the first motors (3) are fixedly connected to the first rotating shafts (4), and the rear sides of the first rotating shafts (4) on both sides penetrate the outer side of the conveyor belt frame (1) and are sleeved with first transmission belts (6).

4. A wooden pallet grinding device according to claim 1, characterized in that: A third motor (21) is fixedly connected to the front side of the mounting plate (19); a power end of the third motor (21) is fixedly connected to a third rotating shaft (22) at the middle side; the other ends of two adjacent groups of third rotating shafts (22) penetrate the outer side of the rear mounting plate (19) and are sleeved with a third transmission belt (24).

5. The wooden pallet grinding device according to claim 1, characterized in that: A plurality of groups of limiting plates (27) are fixedly connected to the outer sides of the first rotating shaft (4), the second rotating shaft (15) and the third rotating shaft (22), and the limiting plates (27) are arranged on both sides of the transmission belt.

6. A wooden pallet grinding device according to claim 1, characterized in that: The first moving block (10) is slidably connected to a first sliding rod (11) inside, and both ends of the first sliding rod (11) are fixedly connected to the inner wall of the moving groove (9); one end of the first moving block (10) is fixedly connected to a first spring (12), and the first spring (12) is sleeved on the outside of the first sliding rod (11), and the other end of the first spring (12) is fixedly connected to the moving groove (9); the second moving block (20) is slidably connected to a second sliding rod (25) inside, and both ends of the second sliding rod (25) are fixedly connected to the inner wall of the mounting rail (18); one end of the second moving block (20) is fixedly connected to a second spring (26), and the second spring (26) is sleeved on the outside of the second sliding rod (25), and the other end of the second spring (26) is fixedly connected to the mounting rail (18).

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