Plastic pallet transfer apparatus

Abstract

This invention discloses a plastic pallet transfer device, relating to the field of pallet transfer equipment, comprising a support frame, a conveyor belt, and a four-corner cleaning device. The conveyor belt passes through the support frame for transferring plastic pallets placed on it. Guide plates are provided on both sides of the conveyor belt, which straighten the plastic pallet as it passes through the guide plates. The four-corner cleaning device is installed on the support frame and is used to clean dirt from the four corners of the plastic pallet. A pallet lifting device is provided at the bottom of the support frame, which lifts the plastic pallet when the conveyor belt transfers it to a position directly above it. Side cleaning devices are provided on the four side walls of the support frame, which clean the four sides of the plastic pallet after the four-corner cleaning device has cleaned the four corners.

Description

Technical Field

[0001] This invention relates to the field of pallet transfer equipment, specifically a plastic pallet transfer device. Background Technology

[0002] Plastic pallets are widely used in the logistics industry for storing, handling, and loading goods. Their general structure consists of support legs at the bottom and a load-bearing surface on top. Due to the molding requirements of plastic products, grooves are needed at the support legs to ensure uniform wall thickness. These grooves easily accumulate dust, wastewater, and other dirt during subsequent use. This is especially problematic when handling foods with high water content, such as fruits. If the fruit is damaged or spoiled, sugary liquids can accumulate in the grooves and on the bottom of the support legs. The sugar content makes these liquids sticky, causing dust and other contaminants to form clumps that adhere to the support legs. When these pallets are stacked, these clumps of dirt can cause differences in the height of each support leg. This accumulated height difference can easily cause the stacked pallets to tip over. Summary of the Invention

[0003] The purpose of this invention is to provide a plastic pallet transfer device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a plastic pallet transfer device, comprising a support frame, a conveyor belt, and a four-corner cleaning device. The conveyor belt passes through the support frame for transferring plastic pallets placed on it. Guide plates are provided on both sides of the conveyor belt, which straightens the plastic pallet as it passes through the guide plates. The four-corner cleaning device is installed on the support frame and is used to clean dirt from the four corners of the plastic pallet. A pallet lifting device is provided at the bottom of the support frame, which lifts the plastic pallet when the conveyor belt transfers it to the top. Side cleaning devices are provided on the four side walls of the support frame, which clean the four sides of the plastic pallet after the four-corner cleaning device has cleaned the four corners.

[0005] Preferably, the guide plate is mounted on the side of the conveyor belt via a mounting clamp, and the mounting clamp is connected to the side of the conveyor belt by bolts.

[0006] Preferably, the four-corner cleaning device includes a four-corner cleaning assembly, a rotating shaft, a connecting shaft, a rotating plate, and a cylinder. The four-corner cleaning assembly is fixedly mounted on the rotating shaft, which is rotatably mounted in a mounting plate fixedly connected to a support frame. One end of the connecting shaft is connected to the end of the four-corner cleaning assembly, and the other end is connected to the rotating plate. The rotating shaft and the connecting shaft are symmetrically arranged on both sides of the rotating plate. The rotating plate is mounted inside a protective cover via a rotating rod. The rotating rod has a gear that meshes with a rack. One end of the rack is connected to the cylinder via a connecting block. The cylinder is fixed inside the protective cover. When the output shaft of the cylinder extends or retracts, it can drive the rack and gear to mesh and rotate, thereby driving the rotating rod to rotate.

[0007] Preferably, the four-corner cleaning assembly includes an upper blower rod and a lower friction rod. The upper blower rod is fixed on a rotating shaft, and its end is connected to a connecting shaft. The lower friction rod is fixed on the rotating shaft, and a friction roller is provided on the working surface of the lower friction rod. The top of the upper blower rod is connected to an air inlet block, which is connected to an external air pumping device through a pipe. An air jet nozzle is provided on the working surface of the upper blower rod.

[0008] Preferably, the friction roller is able to contact the four corners of the plastic tray when it rotates following the lower friction rod.

[0009] Preferably, the rotating plate is rhomboid in shape, and the connecting shaft is connected to the two far-away tips of the rhomboid rotating plate.

[0010] Preferably, the pallet lifting device includes a bracket and a hydraulic cylinder. The bracket is fixed on the output shaft of the hydraulic cylinder, and the hydraulic cylinder is mounted on a support frame via a support rod. The support rod is also equipped with a laser positioning switch, and the bracket is equipped with several suction cups.

[0011] Preferably, the side cleaning device includes a cleaning rod, a mounting plate, a plate seat, and a fixing clamp. The bottom of the cleaning rod is mounted on the mounting plate, the mounting plate is fixed on the plate seat, the plate seat is fixed on the cover, the upper end of the cleaning rod is fixed on the fixing clamp, and the fixing clamp is fixed on the support frame.

[0012] Preferably, a cleaning pad is provided on the inner side of the cleaning rod.

[0013] Compared with existing technologies, the beneficial effects of this invention are:

[0014] 1. This invention can blow out dirt from the grooves on the four support legs of the pallet during the pallet transfer process, and clean the dirt stuck to the bottom surface of the support legs, keeping them flat and easy to stack multiple pallets.

[0015] 2. When cleaning dirt from the support legs, if the dirt is sticky and adheres to the side wall of the tray, the invention will use a cleaning rod to perform a secondary cleaning of the side wall, ensuring the cleanliness of the four support legs of the tray. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the four-corner cleaning device of the present invention;

[0019] Figure 4 This is a schematic diagram of the pallet lifting device of the present invention;

[0020] Figure 5 This is a schematic diagram of the side cleaning device of the present invention.

[0021] In the diagram: 1-Support frame; 2-Conveyor belt; 21-Guide plate; 22-Mounting clamp;

[0022] 3-Four-corner cleaning device; 31-Four-corner cleaning assembly; 311-Upper blower rod; 312-Lower friction rod; 313-Friction roller; 314-Air inlet block;

[0023] 32-Rotating shaft; 33-Connecting shaft; 34-Rotating plate; 35-Cylinder; 36-Guard cover; 37-Rotating rod;

[0024] 5-Pallet lifting device; 51-Bracket; 52-Hydraulic cylinder; 53-Support rod; 54-Laser positioning switch;

[0025] 6-Side cleaning device; 61-Cleaning rod; 62-Mounting plate; 63-Packet seat; 64-Fixing clamp. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0027] Please see Figures 1 to 5This invention provides a technical solution: a plastic pallet transfer device, including a support frame 1, a conveyor belt 2, and a four-corner cleaning device 3. The conveyor belt 2 passes through the support frame 1 to transfer plastic pallets 100 placed on it. Guide plates 21 are provided on both sides of the conveyor belt 2, and the plastic pallet 100 will be aligned when passing through the guide plates 21. The four-corner cleaning device 3 is installed on the support frame 1 and is used to clean dirt from the four corners of the plastic pallet 100. A pallet lifting device 5 is provided at the bottom of the support frame 1. The pallet lifting device 5 lifts the plastic pallet 100 when the conveyor belt 2 transfers it to the top. Side cleaning devices 6 are provided on the four side walls of the support frame 1. After the four-corner cleaning device 3 cleans the four corners of the plastic pallet 100, the side cleaning device 6 cleans the four sides of the plastic pallet 100.

[0028] In this embodiment, the guide plate 21 is installed on the side of the conveyor belt 2 via the mounting clamp 22. The mounting clamp 22 is connected to the side of the conveyor belt 2 via bolts. The guide plate 21 guides the placed plastic pallets 100 to be in the same position, which facilitates the subsequent cleaning of the four corners of the plastic pallets 100.

[0029] In this embodiment, the four-corner cleaning device 3 includes a four-corner cleaning assembly 31, a rotating shaft 32, a connecting shaft 33, a rotating plate 34, and a cylinder 35. The four-corner cleaning assembly 31 is fixedly mounted on the rotating shaft 32, which is rotatably mounted within a mounting plate fixedly connected to the support frame 1. One end of the connecting shaft 33 is connected to the end of the four-corner cleaning assembly 31, and the other end is connected to the rotating plate 34. The rotating shaft 32 and the connecting shaft 33 are symmetrically arranged on both sides of the rotating plate 34. The rotating plate 34 is mounted within a protective cover 36 via a rotating rod 37. A gear is provided on the rotating rod 37, which meshes with a rack. One end of the rack is connected to the cylinder 35 through a connecting block. The cylinder 35 is fixed inside the cover 36. When the output shaft of the cylinder 35 extends or retracts, it can drive the rack and gear to mesh and move, causing the rotating rod 37 to rotate. When the output shaft of the cylinder 35 pushes the rack to move horizontally, it will drive the rotating plate 34 to rotate through the gear. The rotating plate 34 drives the connecting shaft 33 to move, and the connecting shaft will drive the four corner cleaning component 31 to rotate around the rotating shaft 32. When rotating, it cleans the support feet at the four corners of the plastic tray 100.

[0030] In this embodiment, the four-corner cleaning assembly 31 includes an upper blower rod 311 and a lower friction rod 312. The upper blower rod 311 is fixed on a rotating shaft 32, and its end is connected to a connecting shaft 33. The lower friction rod 312 is fixed on the rotating shaft 32, and a friction roller 313 is provided on its working surface. The top of the upper blower rod 311 is connected to an air inlet block 314, which is connected to an external air pumping device via a pipe. An air nozzle is provided on the working surface of the upper blower rod 311. During the rotation of the upper blower rod 311 and the lower friction rod 312, the nozzle of the upper blower rod 311 sprays out high-pressure airflow to blow out dust, sewage and other objects that fall into the support feet of the plastic pallet, keeping the area clean and preventing the dirt in the area from contaminating the lower surface of the support feet of the plastic pallet 100 stacked on top of it. Then, the friction roller 313 on the lower friction rod 312 will wipe and clean the dirt on the lower surface of the support feet of the plastic pallet 100 through the friction force during rotation, avoiding uneven stacking of the plastic pallets 100 due to dirt stuck on them.

[0031] The high-pressure airflow ejected from the nozzle in the above process can also be replaced by high-pressure water jets or high-pressure water jets mixed with detergent to clean some sticky oil stains.

[0032] In this embodiment, the friction roller 313 can contact the four corners of the plastic tray 100 when it rotates following the lower friction rod 312, ensuring that the support feet of the plastic tray 100 can be cleaned.

[0033] In this embodiment, the rotating plate 34 is rhomboid, and the connecting shaft 33 is connected to the two far-away tips of the rhomboid rotating plate 34, which enables the connecting shaft 33 to have a large stroke.

[0034] In this embodiment, the pallet lifting device 5 includes a bracket 51 and a hydraulic cylinder 52. The bracket 51 is fixed on the output shaft of the hydraulic cylinder 52. The hydraulic cylinder 52 is mounted on the support frame 1 via a support rod 53. The support rod 53 is also equipped with a laser positioning switch 54. When the plastic pallet 100 on the conveyor belt 2 moves to the laser positioning switch 54 along with the conveyor belt 2, the laser positioning switch 54 controls the conveyor belt 2 to stop. Then, the hydraulic cylinder 52 is manually started to lift the plastic pallet 100 to a certain height, so that the upper blower rod 311 and the lower friction rod 312 can clean the plastic pallet 100. After cleaning, the hydraulic cylinder 52 is manually controlled to lift the plastic pallet 100 again to clean the side wall of the plastic pallet 100. The bracket 51 is equipped with several suction cups, which can suck the plastic pallet 100 onto the bracket 51.

[0035] In this embodiment, the side cleaning device 6 includes a cleaning rod 61, a mounting plate 62, a plate seat 63, and a fixing clamp 64. The bottom of the cleaning rod 61 is mounted on the mounting plate 62, the mounting plate 62 is fixed on the plate seat 63, the plate seat 63 is fixed on the cover 36, the upper end of the cleaning rod 61 is fixed on the fixing clamp 64, and the fixing clamp 64 is fixed on the support frame 1. When the plastic tray 100 is lifted, all four side walls of the tray will come into contact with the cleaning rod 61, and the side walls can be cleaned by the cleaning pad on the cleaning rod 61.

[0036] In this embodiment, a cleaning pad is provided on the inner side of the cleaning rod 61. The cleaning pad is independent of the cleaning rod 61, which facilitates the subsequent replacement of the cleaning pad.

[0037] Working Principle: After using the plastic pallet 100, when handling it, first place the plastic pallet 100 on the conveyor belt 2. The guide plate 21 guides the placed plastic pallets 100 to be in the same position. When the plastic pallets 100 on the conveyor belt 2 move to the laser positioning switch 54, the laser positioning switch 54 stops the conveyor belt 2. Then, the hydraulic cylinder 52 is manually started to lift the plastic pallet 100 to a certain height. At this time, the output shaft of the cylinder 35 is manually controlled to push the rack to move horizontally. Through the gear, the rotating plate 34 rotates. The rotating plate 34 drives the connecting shaft 33 to move. The connecting shaft 33 pushes the tail of the upper blower rod 311, causing the upper blower rod 311, the lower friction rod 312, and the rotating shaft 32 to rotate within the mounting plate. During rotation, the nozzle of the upper blower rod 311 sprays high-pressure airflow to blow out dust, sewage, and other debris that fall into the support feet of the plastic pallet, keeping the area clean and preventing contamination of the lower surface of the support feet of the plastic pallet 100 stacked on top. Then, the friction roller 313 on the lower friction rod 312 wipes and cleans the dirt on the lower surface of the support feet of the plastic pallet 100 through the friction during rotation, preventing uneven stacking of the plastic pallets 100 due to dirt adhering to them. After cleaning, the plastic pallet 100 is lifted again by manually controlling the hydraulic cylinder 52, and all four side walls come into contact with the cleaning rod 61. The cleaning pads on the cleaning rod 61 clean the side walls, preventing dirt on the side walls from re-adhering to the bottom surface of the support feet.

[0038] Based on the above, the present invention can blow out the dirt from the grooves on the four support legs of the pallet during the pallet transfer process, and clean the dirt stuck to the bottom surface of the support legs, keeping them flat and easy to stack multiple pallets; when cleaning the dirt at the support legs, if the dirt is sticky, the dirt that is cleaned off will stick to the side wall of the pallet, and the side wall will be cleaned a second time by the cleaning rod, ensuring the cleanliness of the four support legs of the pallet.

[0039] As is known from common technical knowledge, this can be achieved through other implementations that do not depart from its spirit or essential characteristics. Therefore, the disclosed implementations described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this document or its equivalents are included herein.

Claims

1. A plastic pallet transfer device, characterized in that: The system includes a support frame (1), a conveyor belt (2), and a four-corner cleaning device (3). The conveyor belt (2) passes through the support frame (1) to transfer the plastic pallet (100) placed on it. Guide plates (21) are provided on both sides of the conveyor belt (2). The plastic pallet (100) will be aligned when it passes through the guide plates (21). The four-corner cleaning device (3) is installed on the support frame (1) and is used to clean the dirt at the four corners of the plastic pallet (100). The bottom of the support frame (1) is provided with a pallet lifting device (5). The pallet lifting device (5) lifts the plastic pallet (100) when the conveyor belt (2) transfers it to the top. The four side walls of the support frame (1) are provided with side cleaning devices (6). The side cleaning devices (6) clean the four sides of the plastic pallet (100) after the four corners of the four corners are cleaned by the four-corner cleaning device (3). The four-corner cleaning device (3) includes a four-corner cleaning assembly (31), a rotating shaft (32), a connecting shaft (33), a rotating plate (34), and a cylinder (35). The four-corner cleaning assembly (31) is fixedly mounted on the rotating shaft (32). The rotating shaft (32) is rotatably mounted in a mounting plate that is fixedly connected to the protective cover (36). One end of the connecting shaft (33) is connected to the end of the four-corner cleaning assembly (31), and the other end is connected to the rotating plate (34). The connecting shaft (33) is symmetrically arranged on both sides of the rotating plate (34). The rotating plate (34) is installed in the cover (36) through the rotating rod (37). The rotating rod (37) is equipped with a gear, which meshes with the rack. One end of the rack is connected to the cylinder (35) through a connecting block. The cylinder (35) is fixed in the cover (36). When the output shaft of the cylinder (35) extends or retracts, it can drive the rack and gear to mesh and move, thereby driving the rotating rod (37) to rotate. The four-corner cleaning assembly (31) includes an upper blower rod (311) and a lower friction rod (312). The upper blower rod (311) is fixed on a rotating shaft (32), and the end of the upper blower rod (311) is connected to a connecting shaft (33). The lower friction rod (312) is fixed on the rotating shaft (32). A friction roller (313) is provided on the working surface of the lower friction rod (312). The top of the upper blower rod (311) is connected to an air inlet block (314). The air inlet block (314) is connected to an external air pumping device through a pipe. An air nozzle is provided on the working surface of the upper blower rod (311). The air nozzle is connected to the air inlet block (314) through a pipe, and the airflow in the air inlet block (314) can be blown out through the air nozzle. The friction roller (313) can contact the four corners of the plastic tray (100) when it rotates following the lower friction rod (312); The rotating plate (34) is rhomboid, and the connecting shaft (33) is connected to the two far-away tips of the rhomboid rotating plate (34).

2. The plastic pallet transfer device according to claim 1, characterized in that: The guide plate (21) is mounted on the side of the conveyor belt (2) by a mounting clamp (22), which is connected to the side of the conveyor belt (2) by bolts.

3. The plastic pallet transfer device according to claim 1, characterized in that: The pallet lifting device (5) includes a bracket (51) and a hydraulic cylinder (52). The bracket (51) is fixed on the output shaft of the hydraulic cylinder (52). The hydraulic cylinder (52) is mounted on the support frame (1) via a support rod (53). The support rod (53) is also equipped with a laser positioning switch (54). The bracket (51) is equipped with several suction cups.

4. The plastic pallet transfer device according to claim 1, characterized in that: The side cleaning device (6) includes a cleaning rod (61), a mounting plate (62), a plate seat (63), and a fixing clamp (64). The bottom of the cleaning rod (61) is mounted on the mounting plate (62), the mounting plate (62) is fixed on the plate seat (63), the plate seat (63) is fixed on the cover (36), the upper end of the cleaning rod (61) is fixed on the fixing clamp (64), and the fixing clamp (64) is fixed on the support frame (1).

5. A plastic pallet transfer device according to claim 4, characterized in that: A cleaning pad is provided on the inner side of the cleaning rod (61).

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