Wood tray overturning and feeding device

The wooden pallet flipping and feeding device, driven by a four-column flipping structure and a limit cylinder, solves the problems of easy damage and insufficient adaptability of existing devices, and achieves stable and fast wooden pallet flipping.

CN224159971UActive Publication Date: 2026-04-24WUHAN XINTIANDI PLASTIC WOOD PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN XINTIANDI PLASTIC WOOD PACKING CO LTD
Filing Date
2025-02-21
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing wooden pallet tipping and feeding devices are prone to damaging wooden pallets during the tipping process and cannot adapt to wooden pallets of different sizes.

Method used

It adopts a four-column flipping structure, equipped with a limit cylinder and a guide arm. The distance between the connecting seats can be adjusted by adjusting the components to achieve stable flipping. The limit cylinder and flipping motor drive the four-column to flip 180 degrees, and the limit arm and the stop seat protect the wooden pallet.

Benefits of technology

It provides protection during the pallet flipping process, adapts to different pallet sizes, avoids damage, and is simple and quick to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of wood tray processing, and provides a wood tray turnover feeding device which comprises a turnover table, a tetragonal prism is rotatably arranged on the turnover table, a turnover motor used for driving the tetragonal prism to turn over is arranged on the turnover table, a pair of connecting seats is arranged on the tetragonal prism, and the connecting seats are connected with the turnover table. A material guiding arm is arranged on the connecting base, a C-shaped limiting arm is arranged on the material guiding arm in a sleeved mode, an opening of the limiting arm faces inwards, and a pair of limiting air cylinders is arranged on the outer side of the material guiding arm. When the device is used for turning over the wood tray, firstly, the limiting air cylinder drives the two limiting arms to move inwards by a small distance at the same time till the two sides of the wood tray are located in openings of the limiting arms, then the turning motor drives the tetragonal column to rotate backwards till the wood tray is turned over by 180 degrees, and then the wood tray is turned over by 180 degrees. And finally, the limiting arm is reset, the tetragonal prism is reversed, and the next wood tray is waited to be turned over.
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Description

Technical Field

[0001] This utility model belongs to the field of wooden pallet processing, and in particular relates to a wooden pallet flipping and feeding device. Background Technology

[0002] Wooden pallets are horizontal platform devices used for assembling, stacking, handling, and transporting goods and products as unit loads. Made of wood, wooden pallets consist of pads, a base plate, and a front panel, all nailed together. The pads are located near the inside of the front panel. Before stacking, to facilitate better clamping by the stacking robot, the pallet can be flipped 180 degrees using a flipping feeding device, with the pads facing upwards. The flipped pallet is then delivered to the stacking station, where the stacking robot clamps the pads to secure the entire pallet and proceed with the stacking process.

[0003] Existing flipping and feeding devices typically include a pair of rotatable clamping arms. When a wooden pallet is delivered to the flipping station, the two clamping arms directly clamp the pallet, then rotate 180 degrees backward, causing the pallet to fall onto the feeding platform and be delivered to the stacking station. While this method can flip the wooden pallet, it is prone to damaging the pallet during the clamping process. Furthermore, the distance between the two clamping arms is not adjustable, making it unsuitable for pallets of different sizes. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a wooden pallet flipping and feeding device, which aims to solve the problems that existing wooden pallet flipping and feeding devices are prone to damaging wooden pallets during the flipping process and cannot adapt to wooden pallets of different specifications.

[0005] The present invention adopts the following technical solution:

[0006] The wooden pallet flipping and feeding device includes a flipping table, on which a square column is rotatably mounted. A flipping motor for driving the square column to flip is provided on the flipping table. A pair of connecting seats are provided on the square column, and a guide arm is provided on the connecting seat. A C-shaped limiting arm is fitted on the guide arm, with the opening of the limiting arm facing inward. A pair of limiting cylinders are provided on the outside of the guide arm, and the drive shaft of the limiting cylinder is connected to the limiting arm. A stop seat is provided at the tail end of the inner side of the guide arm. The connecting seat includes a pair of upper and lower pressure plates. The same pair of pressure plates are mounted on the square column by four locking bolts. A rolling sleeve is fitted on each locking bolt. An adjustment component for adjusting the distance between the two connecting seats is also provided on the square column.

[0007] Furthermore, the upper pressure plate is provided with a fixed seat, and the guide arm is mounted on the fixed seat.

[0008] Furthermore, each end of the square column is provided with a side plate, and a lead screw is rotatably provided between the side plates. The adjustment assembly includes a threaded sleeve installed on a fixed base. The threaded sleeve is located on the lead screw, and a pair of threaded segments with opposite directions are formed on the lead screw. One end of the lead screw passes through the side plate on the same side and is connected to a rotating sleeve.

[0009] Furthermore, the front end of the guide arm is bent outward.

[0010] Furthermore, a pair of guide sleeves are provided on the outer side of the guide arm, and a guide rod is inserted into the guide sleeve. The end of the guide rod is installed inside the limiting arm.

[0011] Furthermore, the rotating sleeve has a rotating hole.

[0012] The beneficial effects of this utility model are as follows: When the wooden pallet is flipped using this device, firstly, all the limiting cylinders on both sides simultaneously drive the two limiting arms to move inward a short distance until both sides of the wooden pallet are within the openings of the limiting arms. Then, the flipping motor drives the four-sided column to rotate backward until the wooden pallet is flipped 180 degrees. The wooden pallet falls onto the rear feeding platform. Finally, driven by the limiting cylinders, the two limiting arms reset, and the four-sided column rotates 180 degrees in the opposite direction, waiting to flip the next wooden pallet. Attached Figure Description

[0013] Figure 1 This utility model provides an overall top view of the wooden pallet flipping and feeding device.

[0014] Figure 2 This utility model provides a schematic diagram of the connector installation.

[0015] Figure 3 This utility model provides a schematic diagram of the installation of the fixing base.

[0016] Figure 4 This utility model provides a cross-sectional schematic diagram of a limiting arm and a guide arm. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0018] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0019] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0020] Combination Figure 1-4As shown, the wooden pallet flipping and feeding device includes a flipping table 1, on which a square column 2 is rotatably mounted. A flipping motor 3 for driving the square column 2 to flip is mounted on the flipping table 1. A pair of connecting seats 4 are mounted on the square column 2. A guide arm 5 is mounted on the connecting seat 4. A C-shaped limiting arm 6 is fitted on the guide arm 5. The opening of the limiting arm 6 is set inward. A pair of limiting cylinders 7 are mounted on the outside of the guide arm 5. The drive shaft of the limiting cylinder 7 is connected to the limiting arm 6. A stop seat 8 is mounted on the tail of the inner side of the guide arm 5. The connecting seat 4 includes a pair of upper and lower pressure plates 41. The pair of pressure plates 41 are mounted on the square column 2 by four locking bolts 42. A rolling sleeve 43 is fitted on each locking bolt 42. An adjustment component for adjusting the distance between the two connecting seats 4 is also provided on the square column 2.

[0021] In this embodiment, Figure 1 In this device, a feeding platform 15 is provided at both the front and rear of the wooden pallet flipping and feeding device. The feeding platform is used to transport wooden pallets. In actual practice, a pair of support rods 16 are provided on the frame of both the front and rear feeding platforms 15. The two pairs of support rods are used to support the limiting arm.

[0022] After the wooden pallet is processed, the front feeding platform transports the finished wooden pallet to the flipping station, where the pallet is positioned between two guide arms. At this time, a pair of support rods on the front feeding platform support the limiting arms, with the openings of the limiting arms facing the wooden pallet, and the width of the limiting arm openings slightly greater than the height of the wooden pallet. When the wooden pallet is flipped using this device, firstly, all the limiting cylinders on both sides simultaneously drive the two limiting arms to move inward a short distance until both sides of the wooden pallet are within the openings of the limiting arms. Then, the flipping motor drives the four-sided column to rotate backward until the wooden pallet is flipped 180 degrees, and the wooden pallet falls onto the rear feeding platform, where a pair of support rods on the rear feeding platform support the limiting arms. Finally, driven by the limiting cylinders, the two limiting arms return to their original positions, and the four-sided column rotates 180 degrees in the opposite direction, ready to flip the next wooden pallet.

[0023] During the process described above, when the two limiting arms move inward a short distance, both sides of the wooden pallet are within the openings of the limiting arms. At this point, the limiting arms act as vertical limits for the wooden pallet, while the guide arms act as horizontal limits. Thus, as the four pillars rotate backward, the stop block abuts against the front end of the wooden pallet, allowing the pallet to rotate 180 degrees stably and smoothly.

[0024] In this device, such as Figure 4The guide arm 5 is provided with a pair of guide sleeves 8 on its outer side, and a guide rod 9 is inserted into the guide sleeve 8. The end of the guide rod 9 is installed in the limiting arm 6. During the process of the corresponding limiting arm moving left and right by the limiting cylinder, the guide rod slides in the guide sleeve. Under the guiding and limiting action of the guide rod and the guide sleeve, the movement of the limiting arm can be made more stable.

[0025] In this structure, Figure 2-3 The square column 2 is equipped with a pair of connecting seats 4. Each connecting seat 4 includes a pair of upper and lower pressure plates 41, which are mounted on the square column 2 by four locking bolts 42. The upper pressure plate is equipped with a fixed seat 17, and the guide arm 5 is mounted on the fixed seat 17. Since each locking bolt is fitted with a rolling sleeve, when the distance between the two connecting seats is adjusted using the adjusting assembly, the connecting seats can move along the length of the square column via the four rolling sleeves on them. At the same time, the connecting seats are limited and mounted on the corresponding side wall of the square column by the pressure plates and rolling sleeves. The pressure plates 41 are equipped with pads 18, which contact the square column. When the square column rotates, the connecting seats can rotate with it.

[0026] As a preferred structure, such as Figure 2-3 Both ends of the square column 2 are provided with side plates 10, and a lead screw 11 is rotatably provided between the side plates 10. The adjustment assembly includes a threaded sleeve 12 installed on the fixed seat. The threaded sleeve 12 is located on the lead screw 11, and a pair of threaded sections with opposite directions are formed on the lead screw. One end of the lead screw passes through the side plate 10 on the same side and is connected to a rotating sleeve 13.

[0027] In practice, the two connecting seats can be adjusted by moving them towards or away from each other on the square post using the adjusting assembly. Since the rotating sleeve 13 has a rotating hole 14, before adjusting the distance between the two connecting seats using the adjusting assembly, first rotate the square post upwards by 90 degrees, then insert the adjusting rod into the rotating hole, and then rotate the adjusting rod to rotate the lead screw. Because the lead screw has a pair of threaded segments in opposite directions, when the adjusting rod rotates clockwise, both connecting seats slide towards each other on the square post through the rolling sleeves; when the adjusting rod rotates counterclockwise, the two connecting seats slide in opposite directions on the square post through the rolling sleeves. After adjustment, the square post returns to its original position. Therefore, the entire adjustment process is relatively simple and quick.

[0028] Additionally, once the wooden pallet is processed, the front feeder conveys the finished pallet toward the flipping station. The flipping station is located inside the guide arm. Because the front end of the guide arm is bent outwards, the wooden pallet can be smoothly guided into the flipping station.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wooden pallet flipping and feeding device, characterized in that: The wooden pallet flipping and feeding device includes a flipping table, on which a square column is rotatably mounted. A flipping motor for driving the square column to flip is provided on the flipping table. A pair of connecting seats are provided on the square column, and a guide arm is provided on the connecting seat. A C-shaped limiting arm is fitted on the guide arm, with the opening of the limiting arm facing inward. A pair of limiting cylinders are provided on the outside of the guide arm, and the drive shaft of the limiting cylinder is connected to the limiting arm. A stop seat is provided at the tail end of the inner side of the guide arm. The connecting seat includes a pair of upper and lower pressure plates. The same pair of pressure plates are mounted on the square column by four locking bolts. A rolling sleeve is fitted on each locking bolt. An adjustment component for adjusting the distance between the two connecting seats is also provided on the square column.

2. The wooden pallet flipping and feeding device as described in claim 1, characterized in that: The upper pressure plate is equipped with a fixed seat, and the guide arm is installed on the fixed seat.

3. The wooden pallet flipping and feeding device as described in claim 2, characterized in that: Both ends of the square column are provided with side plates, and a lead screw is rotatably provided between the side plates. The adjustment assembly includes a threaded sleeve installed on the fixed base. The threaded sleeve is located on the lead screw, and a pair of threaded segments with opposite directions are formed on the lead screw. One end of the lead screw passes through the side plate on the same side and is connected to a rotating sleeve.

4. The wooden pallet flipping and feeding device as described in claim 3, characterized in that: The front end of the guide arm is bent outward.

5. The wooden pallet flipping and feeding device as described in claim 4, characterized in that: A pair of guide sleeves are provided on the outside of the guide arm, and a guide rod is inserted into the guide sleeve. The end of the guide rod is installed in the limiting arm.

6. The wooden pallet flipping and feeding device as described in claim 5, characterized in that: The rotating sleeve has a rotating hole.