Automatic stacking device for plastic trays

Abstract

The utility model discloses an automatic plastic tray stacking device which comprises a conveying structure, four steel supports arranged in a square shape are arranged at one end of the conveying structure, a top face plate is fixedly installed at the tops of the four steel supports, a stacking assembly is installed at the top of the top face plate, and the stacking assembly is connected with the conveying structure. Reinforcing rods are fixedly installed between every two steel supports arranged side by side, a bearing assembly is installed between the two reinforcing rods, the bearing assembly comprises a bearing plate installed between the two steel supports, a rhombic block is fixedly installed in the middle of the bottom face of the bearing plate, and electric telescopic rods are fixedly installed on the two sides of the rhombic block. External corner plates are fixedly mounted at the free ends of the two electric telescopic rods correspondingly, and two lifting strips arranged front and back are mounted at the top of the bearing plate. The electric telescopic rod is matched with the two external corner plates, the plastic trays which are slightly staggered when stacked up and down are collected in order along the two opposite corners of the plastic trays, and the stability of follow-up transferring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pallet stacking, in particular to an automatic plastic pallet stacking device. Background Art

[0002] Plastic pallets are flat-plate-shaped pallets made of plastic. They are usually used for transporting, storing and stacking goods, and can replace traditional wooden pallets. They are widely used in the logistics industry. They can be used for the transportation and storage of goods in various industries such as food, beverages, medicines, and chemicals. In the process of stacking plastic pallets after they are produced, due to improper operation or failure to correctly adjust the clamping force or clamping position of the clamp, the stacked plastic pallets may be easily misaligned up and down, so that when the stacked plastic pallets are subsequently transferred uniformly by forklift, they are easily tilted or tipped over, causing accidents or damage to the plastic pallets. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an automatic stacking device for plastic pallets to solve the problem that some of the existing stacking devices mentioned in the above background technology easily cause the stacked multiple plastic pallets to be misaligned up and down when stacking the produced plastic pallets.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic stacking device for plastic pallets, comprising a conveying structure, one end of which is provided with four steel brackets arranged in a square shape, top panels are fixedly installed on the tops of the four steel brackets, a stacking assembly is installed on the top of the top panel, a reinforcement rod is fixedly installed between the steel brackets arranged side by side in pairs, and a bearing assembly is installed between two of the reinforcement rods;

[0005] The bearing assembly includes a supporting plate installed between two steel brackets, a diamond block is fixedly installed in the middle of the bottom surface of the supporting plate, electric telescopic rods are fixedly installed on both sides of the diamond block, and the free ends of the two electric telescopic rods are fixedly installed with external corner plates, and the two external corner plates are respectively located on the outer sides of the two diagonal corners of the supporting plate, and two lifting bars arranged front and back are installed on the top of the supporting plate.

[0006] Preferably, a distance sensor located above the supporting plate is installed at the bottom of the top panel, and the distance sensor is electrically connected to the palletizing assembly.

[0007] Preferably, an L-shaped strap is fixedly installed on one side of the support plate close to the conveying structure, a threaded rod is fixedly installed on the top of the L-shaped strap, and a connecting tube is threadedly sleeved on the outer surface of the threaded rod.

[0008] Preferably, a rectangular plate is fixedly mounted on the top of the connecting tube, and one side of the rectangular plate is in contact with the surface of one end of the conveying structure.

[0009] Preferably, two guide plates arranged in front and back mirror images are clamped on the top of the conveying structure, and one end of the two guide plates is respectively located in front and behind one side of the rectangular plate.

[0010] Preferably, the palletizing assembly includes an electric slide rail installed on the top of the top panel, a slider is slidably installed on the outer surface of the electric slide rail, a multi-section electric push rod is installed at the bottom of the slider, a bidirectional electric guide rail is installed at the free end of the multi-section electric push rod, and two clamp structures arranged front and back are installed on the bidirectional electric guide rail.

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

[0012] 1. In the utility model, after a number of plastic pallets are stacked on a support plate, the two external angle plates are driven to move in relative directions by the contraction of two electric telescopic rods, thereby generating a closing force on one of the diagonals of the stacked multi-layer plastic pallets, thereby neatly closing the plastic pallets that are slightly misaligned when stacked up and down, and improving the stability during subsequent transfer.

[0013] 2. The utility model utilizes a distance sensor to monitor the distance between itself and the top surface of the plastic pallet on the support plate below at set intervals, and feeds back to the palletizing assembly so that the subsequent palletizing assembly can increase the plastic pallet on the support plate and change the height below in time, thereby increasing its overall sensitivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the position structure of the conveying structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the conveying structure and the guide plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the palletizing assembly of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the load-bearing assembly of the utility model;

[0019] Figure 6 This is a schematic diagram of the installation structure of the top panel and the distance sensor of the utility model.

[0020] In the figure: 1. conveying structure; 101. guide plate; 2. steel bracket; 3. top panel; 4. stacking assembly; 401. electric slide rail; 402. slider; 403. multi-section electric push rod; 404. two-way electric guide rail; 405. fixture structure; 5. bearing assembly; 501. supporting plate; 502. diamond block; 503. electric telescopic rod; 504. positive angle plate; 505. lifting bar; 6. distance sensor; 7. L-shaped board; 701. threaded rod; 702. connecting tube; 703. rectangular plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] To solve the problem that some existing stacking devices easily cause multiple plastic pallets to be misaligned when stacking plastic pallets after production, please refer to Figure 1-Figure 6 , an embodiment provided by the utility model:

[0023] A plastic pallet automatic stacking device comprises a conveying structure 1, one end of which is provided with four steel brackets 2 arranged in a square shape, a top panel 3 is fixedly installed on the top of the four steel brackets 2, a stacking assembly 4 is installed on the top of the top panel 3, a reinforcement rod is fixedly installed between the steel brackets 2 arranged side by side in pairs, a bearing assembly 5 is installed between the two reinforcement rods, the conveying structure 1 is used to connect the plastic pallet production line, and the produced plastic pallets are put into the conveying structure 1, and the stacking assembly 4 and the bearing assembly 5 in the device are used to perform a stable stacking operation on the plastic pallets;

[0024] Specifically, the bearing assembly 5 includes a support plate 501 installed between two steel brackets 2, which defines a placement area for stacking plastic pallets. A diamond block 502 is fixedly installed in the middle of the bottom surface of the support plate 501, and electric telescopic rods 503 are fixedly installed on both sides of the diamond block 502. The electric telescopic rods 503 preferably use the CMC053-S100-D05 model. The free ends of the two electric telescopic rods 503 are fixedly installed with external angle plates 504, and the two external angle plates 504 are respectively located on the outside of the two diagonal corners of the support plate 501. Two front-to-back lifting bars 505 are installed on the top of the support plate 501, which provide convenience for the forklift to insert into the bottom of the lowest plastic pallet when the forklift subsequently transfers the stacked multiple plastic pallets.

[0025] Furthermore, by utilizing the stacking assembly 4 to transfer the conveying structure 1 to the set position, the plastic pallet is clamped and transferred to the supporting plate 501. After several plastic pallets are stacked to a certain height, the two electric telescopic rods 503 are operated synchronously to prompt them to retract inward accordingly, thereby driving the two external angle plates 504 to move in relative directions. During this process, the external angle plate 504 exerts a gathering force on one of the diagonals of the stacked multi-layer plastic pallets, and the plastic pallets that are slightly misaligned when stacked up and down are gathered neatly, thereby improving the stability during subsequent transfer.

[0026] Reference Figure 6 As shown, a distance sensor 6 located above the support plate 501 is installed at the bottom of the top panel 3, and the distance sensor 6 is electrically connected to the stacking assembly 4. Before the stacking assembly 4 performs the stacking action, the distance sensor 6 monitors the distance between itself and the top surface of the plastic pallet placed on the support plate 501 below, and feeds back the signal to the stacking assembly 4 electrically connected thereto, so that the subsequent stacking assembly 4 can be at a suitable height position when placing the clamped plastic pallet on the support plate 501.

[0027] Reference Figure 1 and Figure 2 As shown, an L-shaped strap 7 is fixedly installed on one side of the support plate 501 close to the conveying structure 1, and a threaded rod 701 is fixedly installed on the top of the L-shaped strap 7. A connecting tube 702 is threadedly sleeved on the outer surface of the threaded rod 701, and a rectangular plate 703 is fixedly installed on the top of the connecting tube 702, and one side of the rectangular plate 703 is in contact with the surface of one end of the conveying structure 1. By moving the rectangular plate 703, the connecting tube 702 is driven to rotate upward along the surface of the threaded rod 701, and the rectangular plate 703 is adjusted to be aligned with the conveying part of the top surface of the conveying structure 1. The same height state can facilitate the conveying structure 1 to push the produced plastic pallets onto the rectangular plate 703, and then wait for the stacking component 4 to transfer and stack. In addition, it can also drive the connecting tube 702 to rotate downward along the surface of the threaded rod 701, adjust the rectangular plate 703 to the bottom of the conveying structure 1, and then push the four steel brackets 2, the top panel 3, the stacking component 4 and the bearing component 5 to the conveying structure 1, and adjust the device to the state of directly clamping the plastic pallet on the conveying structure 1 for transfer and stacking through the stacking component 4.

[0028] Reference Figure 1 and Figure 3 As shown, two guide plates 101 arranged in front and back mirror images are clamped on the top of the conveying structure 1, and one end of the two guide plates 101 is respectively located in front and behind one side of the rectangular plate 703. The guide plates 101 serve to guide the plastic pallet to be conveyed onto the rectangular plate 703.

[0029] Reference Figure 1 and Figure 4As shown, the palletizing assembly 4 includes an electric slide rail 401 installed on the top of the top panel 3, a slider 402 is slidably installed on the outer surface of the electric slide rail 401, a multi-section electric push rod 403 is installed at the bottom of the slider 402, and the multi-section electric push rod 403 preferably uses the CMC065-S100-D05 model, and a bidirectional electric guide rail 404 is installed at the free end of the multi-section electric push rod 403, and two clamp structures 405 arranged front and back are installed on the bidirectional electric guide rail 404. The electric slide rail 401, the multi-section electric push rod 403 and the bidirectional electric guide rail 404 are basically the same as those in the prior art. Its internal structure and usage are not described in detail in this solution. For the stacking assembly 4 as a whole, the electric slide rail 401 is used to adjust the slider 402 and the various structures installed thereunder to above the rectangular plate 703 or the conveying structure 1, and then the multi-section electric push rod 403 extends downward and the two-way electric guide rail 404 cooperates to make the two clamp structures 405 firmly clamp the plastic pallet, and again with the cooperation of the electric slide rail 401, the multi-section electric push rod 403 and the two-way electric guide rail 404, the plastic pallet is moved to the support plate 501 for stacking.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A plastic pallet automatic stacking device, comprising a conveying structure (1), characterized in that: One end of the conveying structure (1) is provided with four steel brackets (2) arranged in a square shape, a top panel (3) is fixedly installed on the top of the four steel brackets (2), a stacking assembly (4) is installed on the top of the top panel (3), a reinforcement rod is fixedly installed between the steel brackets (2) arranged side by side in pairs, and a bearing assembly (5) is installed between two of the reinforcement rods; The bearing assembly (5) includes a supporting plate (501) installed between two steel brackets (2), a diamond block (502) is fixedly installed in the middle of the bottom surface of the supporting plate (501), electric telescopic rods (503) are fixedly installed on both sides of the diamond block (502), and the free ends of the two electric telescopic rods (503) are fixedly installed with external angle plates (504), and the two external angle plates (504) are respectively located on the outer sides of the two diagonal corners of the supporting plate (501), and two lifting bars (505) arranged front and back are installed on the top of the supporting plate (501).

2. The automatic stacking device for plastic pallets according to claim 1, characterized in that: A distance sensor (6) located above the supporting plate (501) is installed at the bottom of the top panel (3), and the distance sensor (6) is electrically connected to the palletizing assembly (4).

3. The automatic stacking device for plastic pallets according to claim 1, characterized in that: An L-shaped strap (7) is fixedly mounted on one side of the support plate (501) close to the conveying structure (1), a threaded rod (701) is fixedly mounted on the top of the L-shaped strap (7), and a connecting tube (702) is threadedly sleeved on the outer surface of the threaded rod (701).

4. The automatic plastic pallet stacking device according to claim 3, characterized in that: A rectangular plate (703) is fixedly mounted on the top of the connection tube (702), and one side of the rectangular plate (703) is in contact with the surface of one end of the conveying structure (1).

5. The automatic plastic pallet stacking device according to claim 1, characterized in that: The top of the conveying structure (1) is clamped with two guide plates (101) arranged in a front-to-back mirror image, and one end of the two guide plates (101) is respectively located in front and at the rear of one side of the rectangular plate (703).

6. The automatic plastic pallet stacking device according to claim 1, characterized in that: The stacking assembly (4) comprises an electric slide rail (401) mounted on the top of the top panel (3); a slider (402) is slidably mounted on the outer surface of the electric slide rail (401); a multi-section electric push rod (403) is mounted on the bottom of the slider (402); a bidirectional electric guide rail (404) is mounted on the free end of the multi-section electric push rod (403); and two clamp structures (405) arranged front and rear are mounted on the bidirectional electric guide rail (404).

Images