A stacking device for wooden pallets

By adjusting the protective and guiding receiving mechanism, the problem of pallet position shift during the lifting process was solved, enabling accurate positioning and neat stacking of pallets of different sizes, thus improving safety and adaptability.

CN224449503UActive Publication Date: 2026-07-03HARBIN GONGZHE ROBOT REMANUFACTURING (ANYANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN GONGZHE ROBOT REMANUFACTURING (ANYANG) CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing technologies, wooden pallets lack a guiding and positioning mechanism during the lifting process, which causes the pallet position to shift, posing a safety hazard and making it unsuitable for pallets of different sizes.

Method used

The system employs an adjustable protective mechanism and a guiding and receiving mechanism, using components such as lead screws, motors, and cylinders to guide and limit the movement of pallets of different sizes, ensuring accurate pallet positioning and improving stacking neatness.

Benefits of technology

It effectively prevents pallet shifting, improves the safety and adaptability of pallet stacking, and ensures accurate positioning and neat stacking of pallets of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of pallet stacking technology, and in particular to a pallet stacking device for wooden pallets, including an adjusting and protective mechanism and a guiding and receiving mechanism. The guiding and receiving mechanism is located inside the adjusting and protective mechanism. The adjusting and protective mechanism includes a base, in which two sliding plates are slidably connected, and a first lead screw is rotatably connected. A baffle is fixed to the top of each of the two sliding plates on opposite sides. By adjusting the protective mechanism, the first baffle, the second baffle, and the two baffles move, thereby moving the guiding and receiving mechanism to guide and receive wooden pallets of different sizes. The two guide plates in the guiding and receiving mechanism provide initial positioning and adjustment of the conveyed wooden pallet, and the two receiving frames provide secondary positioning and adjustment as they approach the pallet, ensuring accurate support of the pallet by the two receiving frames and improving the neatness of the pallet stacking.
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Description

Technical Field

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

[0002] According to the patent document with publication number CN222249162U, the patent document describes a method where a closed belt in a drive mechanism transports a pallet to the top of a lifting device. An electric pulley slides, causing the lifting plate to rise. The lifting plate then moves the pallet upward to the top of a triangular anti-fall block. During this process, the triangular anti-fall block is pushed back by the pallet and then returns to its original position. The lifting plate then descends, and the pallet is limited and supported by the returned triangular anti-fall block. Each time the lifting plate moves a new pallet upward, it will lift the already placed pallet until the triangular anti-fall block returns to its original position and is placed again, thus achieving pallet stacking.

[0003] The patent document states that when the lifting plate moves the pallet upward, the lack of a guiding and positioning mechanism causes the pallet to shift position on the lifting plate, which in turn prevents the triangular anti-fall block from fully locking the pallet, posing a safety hazard. Furthermore, the device cannot be adapted to pallets of different sizes. Utility Model Content

[0004] The purpose of this invention is to provide a stacking device for wooden pallets in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A stacking device for wooden pallets includes an adjusting and protective mechanism and a guiding and receiving mechanism, wherein the guiding and receiving mechanism is located inside the adjusting and protective mechanism;

[0007] The adjusting protective mechanism includes a base, two sliding plates are slidably connected inside the base, a first lead screw is rotatably connected inside the base, and baffles are fixed on the top sides of the two sliding plates that are far apart from each other. A first baffle is fixed to the back of one baffle and a second baffle is fixed to the back of the other baffle.

[0008] The guiding and receiving mechanism includes two guide plates, which are respectively fixed on the top of two sliding plates on the side close to each other. A conveyor belt is provided on the side of the two guide plates close to each other. A lifting plate is slidably connected inside the two baffles. A cylinder is fixed on the side of the two lifting plates away from each other. A receiving frame is fixed on the extension end of the two cylinders. A second lead screw is threadedly connected to the rear side of the two lifting plates.

[0009] Preferably, a first lead screw passes through and is threadedly connected to two sliding plates, and a first motor is fixedly installed at the input end of the first lead screw.

[0010] Preferably, both the first and second stops have L-shaped cross-sections, and the second stop is slidably connected to the other side of the first stop.

[0011] Preferably, several rotating rollers are rotatably connected to the side of the two guide plates that are close to each other, and the two conveyor belts are respectively wrapped around the outside of the several rotating rollers. The input ends of the two rotating rollers closest to the second stop are fixedly equipped with a second motor.

[0012] Preferably, the two second lead screws are rotatably connected to the two baffles respectively, and the input ends of the two second lead screws are fixedly equipped with a third motor. The two third motors are respectively installed on the side of the two sliding plates that are far apart from each other.

[0013] Preferably, both support frames consist of a limiting frame and a support plate. The two limiting frames are located on both sides of the wooden pallet, and the two support plates are located in the gaps on both sides of the wooden pallet.

[0014] Preferably, the wooden pallet is located between two guide plates and on top of two conveyor belts.

[0015] The beneficial effects compared with the existing technology are as follows: by adjusting the protective mechanism, the first baffle, the second baffle and the two baffles are moved, which in turn drives the guiding and receiving mechanism to move, so as to guide and receive wooden pallets of different sizes. The two guide plates in the guiding and receiving mechanism make initial limit adjustments to the position of the conveyed wooden pallets, and then make secondary limit adjustments to the position of the wooden pallets as the two receiving frames approach the wooden pallets, so as to ensure that the two receiving frames accurately support the wooden pallets, and at the same time improve the neatness of the wooden pallet stacking. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a stacking device for wooden pallets according to the present invention;

[0018] Figure 2 This is a right view of a stacking device for wooden pallets according to the present invention;

[0019] Figure 3 yes Figure 2 Sectional view at point AA;

[0020] Figure 4 This is a schematic diagram of the adjustment and protection mechanism of a stacking device for wooden pallets according to the present invention;

[0021] Figure 5 This is a schematic diagram of the guiding and receiving mechanism of a stacking device for wooden pallets according to the present invention;

[0022] Figure 6 This is a schematic diagram of the sliding plate and baffle structure of a stacking device for wooden pallets according to the present invention;

[0023] Figure 7 This is a schematic diagram of the first and second support frames of a stacking device for wooden pallets according to the present invention;

[0024] Figure 8 This is a schematic diagram of the receiving frame structure of a stacking device for wooden pallets according to the present invention.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Adjustable protective mechanism; 2. Guide and receiving mechanism; 101. Base; 102. Sliding plate; 103. First lead screw; 104. Baffle; 105. First stop frame; 106. Second stop frame; 201. Guide plate; 202. Rotary roller; 203. Conveyor belt; 204. Lifting plate; 205. Cylinder; 206. Receiving frame; 207. Second lead screw. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-8 As shown, a stacking device for wooden pallets includes an adjusting and protective mechanism 1 and a guiding and receiving mechanism 2, with the guiding and receiving mechanism 2 located inside the adjusting and protective mechanism 1.

[0030] In this embodiment: the adjusting protective mechanism 1 includes a base 101, with two sliding plates 102 slidably connected inside the base 101. A first lead screw 103 is rotatably connected inside the base 101, passing through and threadedly connected to the two sliding plates 102. A first motor is fixedly installed at the input end of the first lead screw 103. A baffle 104 is fixed on one side of the top of each of the two sliding plates 102 that are far apart from each other. A first stop 105 is fixed to the rear side of one baffle 104, and a second stop 106 is fixed to the rear side of the other baffle 104. Both the first and second baffles 105 have L-shaped cross sections. The second baffle 106 is slidably connected to the other side of the first baffle 105. The first baffle 105, the second baffle 106, and the two baffles 104 protect the wooden pallet from accidental falls and injuries. The first motor drives the first lead screw 103 to move the two sliding plates 102 closer to each other or further away from each other, thereby moving the first baffle 105, the second baffle 106, and the two baffles 104, which in turn moves the guide and receiving mechanism 2 to meet the guiding and receiving needs of wooden pallets of different sizes.

[0031] In this embodiment: the guiding and receiving mechanism 2 includes two guide plates 201, which are respectively fixed to the top of two sliding plates 102 on the side where they are close to each other. A conveyor belt 203 is provided on the side where the two guide plates 201 are close to each other. A wooden pallet is located between the two guide plates 201 and on top of the two conveyor belts 203. Several rotating rollers 202 are rotatably connected to the side where the two guide plates 201 are close to each other. The two conveyor belts 203 are respectively sleeved on the outside of the several rotating rollers 202. A second motor is fixedly installed at the input end of the two rotating rollers 202 closest to the second baffle 106. A lifting plate 20 is slidably connected inside each of the two baffles 104. 4. A cylinder 205 is fixed to the side of each of the two lifting plates 204 that is far apart from each other. A receiving frame 206 is fixed to the extension / retraction end of each of the two cylinders 205. Each receiving frame 206 consists of a limiting frame and a support plate. The two limiting frames are located on both sides of the wooden pallet, and the two support plates are located in the gaps on both sides of the wooden pallet. A second lead screw 207 is threaded to the rear of each of the two lifting plates 204. The two second lead screws 207 are rotatably connected to the two baffles 104. A third motor is fixedly installed at the input end of each of the two second lead screws 207. The two third motors are installed on the side of each of the two sliding plates 102 that is far apart from each other. The synchronous rotation of the two second motors drives the... Several rollers 202 and conveyor belt 203 rotate, transporting the wooden pallet to the underside of two receiving frames 206. During this process, two guide plates 201 initially limit and adjust the position of the wooden pallet to prevent deviation. Two third motors drive the corresponding two second lead screws 207 to rotate synchronously in the forward direction, thereby moving the two lifting plates 204 and the two receiving frames 206 downward to both sides of the wooden pallet. Two cylinders 205 drive the corresponding two receiving frames 206 to approach and support the wooden pallet. During this process, two limiting frames move closer to each other to perform a secondary limit adjustment on the position of the wooden pallet. The two support plates move to the empty space on both sides of the wooden pallet. Within the gap, two third motors drive the corresponding two second lead screws 207 to rotate synchronously in opposite directions, thereby driving the two support frames 206 and the wooden pallet to move upward, completing one support operation. Subsequently, each time a new wooden pallet is supported, the two third motors drive the corresponding two second lead screws 207 to rotate synchronously in the forward direction, thereby driving the two lifting plates 204 and the two support frames 206 to move downward, placing the already stacked wooden pallet on top of the new wooden pallet. The two cylinders 205 drive the corresponding two support frames 206 away from the supported wooden pallet and repeat the above operation to support the new wooden pallet while lifting the already stacked wooden pallet.

[0032] Working principle: According to the size of the wooden pallet, the first motor drives the first lead screw 103 to move the two sliding plates 102 closer to each other or further away from each other, thereby moving the first baffle 105, the second baffle 106 and the two baffles 104 to move, thereby moving the two lifting plates 204 and the two guide plates 201 in the guide receiving mechanism 2 closer to each other or further away from each other.

[0033] After adjustment, the two second motors rotate synchronously, driving the corresponding rollers 202 and conveyor belt 203 to rotate, thereby transporting the wooden pallet to the underside of the two receiving frames 206. During this process, the two guide plates 201 perform initial positional adjustment of the wooden pallet to prevent displacement. Then, the two third motors drive the corresponding two second lead screws 207 to rotate synchronously in the forward direction, thereby driving the two lifting plates 204 and the two receiving frames 206 to move downward to both sides of the wooden pallet. The two cylinders 205 drive the corresponding two receiving frames 206 to approach and support the wooden pallet. During this process, the two limiting frames move closer to each other to perform secondary positional adjustment of the wooden pallet. The two support plates move to the underside of the wooden pallet. Within the gaps on both sides of the pallet, the last two third motors drive the corresponding two second lead screws 207 to rotate synchronously in opposite directions, thereby moving the two receiving frames 206 and the wooden pallet upward to complete one receiving and support operation. Subsequently, each time a new wooden pallet is received, the two third motors drive the corresponding two second lead screws 207 to rotate synchronously in the forward direction, thereby moving the two lifting plates 204 and the two receiving frames 206 downward to place the already stacked wooden pallet on top of the new wooden pallet. Then, the two cylinders 205 drive the corresponding two receiving frames 206 away from the supported wooden pallet and repeat the above operation to receive and support the new wooden pallet while lifting the already stacked wooden pallet.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A stacking device for wooden pallets, characterized in that: It includes an adjustment and protection mechanism (1) and a guide and receiving mechanism (2), wherein the guide and receiving mechanism (2) is located inside the adjustment and protection mechanism (1); The adjustment and protection mechanism (1) includes a base (101), two sliding plates (102) are slidably connected inside the base (101), a first lead screw (103) is rotatably connected inside the base (101), and baffles (104) are fixed on the sides of the tops of the two sliding plates (102) that are far apart from each other. A first baffle (105) is fixed on the rear side of one baffle (104), and a second baffle (106) is fixed on the rear side of the other baffle (104). The guiding and receiving mechanism (2) includes two guide plates (201). The two guide plates (201) are respectively fixed on the top of the two sliding plates (102) on the side that is close to each other. The side that is close to each other of the two guide plates (201) is provided with a conveyor belt (203). The two baffles (104) are slidably connected with lifting plates (204). The side that is far away from each other of the two lifting plates (204) is fixed with a cylinder (205). The telescopic ends of the two cylinders (205) are fixed with receiving frames (206). The rear side of the two lifting plates (204) is threadedly connected with a second lead screw (207).

2. A stacking device for wooden pallets according to claim 1, characterized in that: The first lead screw (103) passes through and is threadedly connected to the two sliding plates (102), and a first motor is fixedly installed at the input end of the first lead screw (103).

3. A stacking device for wooden pallets according to claim 1, characterized in that: The first stop (105) and the second stop (106) both have L-shaped cross sections, and the second stop (106) is slidably connected to the other side of the first stop (105).

4. A stacking device for wooden pallets according to claim 1, characterized in that: Each of the two guide plates (201) has a number of rotating rollers (202) rotatably connected to one side of each other. The two conveyor belts (203) are respectively sleeved on the outside of the number of rotating rollers (202). The input ends of the two rotating rollers (202) closest to the second baffle (106) are fixedly provided with a second motor.

5. A stacking device for wooden pallets according to claim 1, characterized in that: The two second lead screws (207) are rotatably connected to the two baffles (104) respectively. The input ends of the two second lead screws (207) are fixedly equipped with third motors. The two third motors are respectively installed on the side of the two sliding plates (102) that are far apart from each other.

6. A stacking device for wooden pallets according to claim 1, characterized in that: Both of the aforementioned support frames (206) consist of a limiting frame and a support plate. The two limiting frames are located on both sides of the wooden pallet, and the two support plates are located in the gaps on both sides of the wooden pallet.

7. A stacking device for wooden pallets according to claim 1, characterized in that: The wooden pallet is located between the two guide plates (201) and on top of the two conveyor belts (203).