Tray stacking equipment

Abstract

According to the technical scheme, the tray stacking equipment is characterized in that the tray stacking equipment comprises a conveying mechanism, and the conveying mechanism is used for conveying trays in the horizontal direction; the supporting frame is erected on the conveying mechanism; the number of the hooking claw mechanisms is two, and the two hooking claw mechanisms are located on the two sides of the conveying mechanism correspondingly so that the trays can be grabbed through the two hooking claw mechanisms; the number of the lifting mechanisms is two, the lifting mechanisms are arranged on the supporting frame, the two lifting mechanisms correspond to the two hook claw mechanisms respectively, and the lifting mechanisms are used for driving the corresponding hook claw mechanisms to move up and down; the lifting mechanism comprises a lifting cylinder; the lifting air cylinder drives the hook claw mechanism to achieve stacking and disassembling operation of trays, lubricating oil does not need to be smeared regularly in the using process, multiple sets of chains and chain wheels are omitted, the equipment structure is simplified, and the failure rate of the equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pallet stacking, and more specifically, to a pallet stacking device. Background Art

[0002] With the rapid development of the logistics industry, especially in warehouse management and cargo sorting, pallet stackers have become an indispensable part of the logistics industry. Pallet stackers can work 24 hours a day, greatly improving work efficiency. At the same time, they reduce manual intervention and the possibility of human error. Pallet stackers are extremely fast and accurately positioned during operation, and can adjust the operating speed and stacking height according to actual needs. Due to its efficient working method, companies can reduce labor costs and reduce additional costs caused by human errors.

[0003] In the prior art, a Chinese invention patent application with publication number CN117022960A discloses an online pallet stacking and four-sided shaping integrated device, including a pallet shaping integrated device, a stacking mechanism, a shaping mechanism, a roller line conveying device, a lifting transmission assembly, a pallet stacking assembly, a four-sided shaping assembly, a side pushing assembly, and an installation welding frame. The pallet shaping integrated device is composed of a stacking mechanism, a shaping mechanism, and a roller line conveying device. The stacking mechanism is located outside the pallet shaping integrated device, the shaping mechanism is located inside the pallet shaping integrated device, and the roller line conveying device is located at the bottom of the pallet shaping integrated device. The present invention reduces the accumulated errors of the stacked empty pallets by adding a stacking mechanism, which crosses the roller conveying line and is arranged in the center. The two parts are locked to the bottom surface with feet, so that the errors generated by the accumulation of the stacked empty pallets are reduced, and a shaping mechanism is added. The shaping mechanism pushes out the four-sided shaping assembly, and the push plates on both sides push out the side planes of the empty pallet stack, accurately moving to the sorting point, and effectively correcting the deflection and misalignment of the pallet.

[0004] In the prior art, the stacking of pallets requires the cooperation of multiple sets of chains and sprockets. During the operation of the equipment, lubricating oil needs to be applied regularly for maintenance. In addition, the structure of the equipment is complex, which increases the probability of equipment failure. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a pallet stacking device, which realizes the stacking and disassembly operations of the pallets by driving the hook mechanism through a lifting cylinder. During use, there is no need to apply lubricating oil regularly, which reduces the setting of multiple sets of chains and sprockets, simplifies the equipment structure, and reduces the failure rate of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pallet stacking device, comprising a transmission mechanism, wherein the transmission mechanism is used to transmit the pallet in a horizontal direction;

[0007] A support frame, wherein the support frame is mounted on the transmission mechanism;

[0008] A hook mechanism, wherein two hook mechanisms are provided, and the two hook mechanisms are respectively located on both sides of the transmission mechanism so as to realize the grabbing of the pallet through the two hook mechanisms;

[0009] and a lifting mechanism, wherein two lifting mechanisms are provided and the lifting mechanisms are arranged on the support frame, the two lifting mechanisms correspond to the two hook mechanisms respectively, and the lifting mechanisms are used to drive the corresponding hook mechanisms to move up and down;

[0010] The lifting mechanism includes a lifting cylinder.

[0011] The utility model is further configured as follows: the transmission mechanism includes a bracket;

[0012] A transmission chain, wherein two transmission chains are provided, and the two transmission chains are respectively located on both sides of the bracket, and the pallet is transmitted through the two transmission chains;

[0013] And a stopping cylinder, which is fixedly connected to the bracket and located between the two transmission chains, and is used to position and stop the pallet at the support frame by extending a piston rod.

[0014] The utility model is further configured as follows: the transmission mechanism includes two limit plates, the two limit plates are respectively fixedly connected to the two sides of the top of the bracket, the two limit plates are located on the two sides of the two transmission chains that are away from each other, the limit plates are vertically arranged, and the length directions of the two limit plates are arranged along the transmission direction of the pallet.

[0015] The utility model is further configured as follows: the transmission mechanism also includes a motor, the motor is fixed on a bracket, and the motor is transmission-connected to the transmission chain through a chain and a sprocket.

[0016] The utility model is further configured as follows: the support frame includes a bottom welding frame, and the bottom welding frame is located at the bottom of the support frame;

[0017] Side welding frames, two of which are provided, and the two side welding frames are respectively located on both sides of the bracket and are vertically arranged;

[0018] and a top connecting beam, which is located above the bracket and is fixedly connected to the tops of the two side welding frames;

[0019] The two hook mechanisms slide up and down respectively on the sides of the two side welding frames which are close to each other.

[0020] The utility model is further configured as follows: the lifting mechanism comprises two lifting cylinders, the two lifting cylinders are respectively a first lifting cylinder and a second lifting cylinder;

[0021] The cylinder bodies of the first lifting cylinder and the second lifting cylinder are fixedly connected together, the piston rod of the first lifting cylinder is fixedly connected to a connecting seat, the connecting seat is fixedly connected to the side welding frame, the piston rod of the second lifting cylinder is fixedly connected to a connecting plate, and the connecting plate is connected to the hook mechanism.

[0022] The utility model is further configured as follows: the hook mechanism includes a lifting plate, and the lifting plate is fixedly connected to the connecting plate;

[0023] Lifting hooks, two of which are provided and can slide horizontally at the bottom of the lifting plate, and the sliding direction of the lifting hooks is perpendicular to the transmission direction of the tray;

[0024] And a telescopic cylinder, the cylinder body of the telescopic cylinder is fixedly connected to the lifting plate, and the piston rod of the telescopic cylinder is fixedly connected with two lifting hooks through a connecting rod so as to drive the two lifting hooks to slide through the telescopic cylinder.

[0025] The utility model is further configured as follows: a sliding block is fixedly connected to the lifting hook, a sliding rail is arranged on the lifting plate at a position corresponding to the lifting hook, and the sliding block can slide on the sliding rail in the sliding direction of the lifting hook.

[0026] The utility model is further configured as follows: two sides of the two side welding frames close to each other are fixedly connected with two vertically arranged positioning rails;

[0027] One side of the lifting plate close to the corresponding side welding frame is fixedly connected with two fixing seats, and two positioning blocks are fixedly connected to the two fixing seats. The two positioning blocks slide vertically on two positioning guide rails on the side welding frame respectively.

[0028] The utility model is further configured as follows: two groups of light sensors are arranged on the two side welding frames, one group of light sensors is used to detect whether there are pallets at the support frame of the transmission mechanism, and the other group of light sensors is used to detect whether the number of pallets lifted by the two hook mechanisms exceeds a set number.

[0029] In summary, compared with the prior art, the utility model has the following beneficial effects: the utility model realizes the stacking and disassembly operations of the pallets by driving the hook mechanism through the lifting cylinder, and there is no need to apply lubricating oil regularly during use, which reduces the setting of multiple sets of chains and sprockets, simplifies the equipment structure, and reduces the failure rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of an embodiment;

[0031] Figure 2 is a schematic diagram of a transmission mechanism of an embodiment;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0033] Figure 4 is a schematic diagram of a support frame of an embodiment;

[0034] Figure 5 for Figure 4 An enlarged schematic diagram of part B;

[0035] Figure 6 is a schematic diagram of a lifting mechanism of an embodiment;

[0036] Figure 7 Schematic diagram of the hook mechanism of the embodiment.

[0037] In the figure: 1. transmission mechanism; 11. bracket; 12. transmission chain; 13. limit plate; 14. stop cylinder; 15. motor; 2. support frame; 21. bottom welding frame; 22. side welding frame; 23. top connecting beam; 24. positioning guide rail; 25. positioning block; 3. hook mechanism; 31. lifting plate; 32. lifting hook; 33. telescopic cylinder; 34. slide rail; 35. slider; 36. elastic buffer pad; 4. lifting mechanism; 41. first lifting cylinder; 42. second lifting cylinder; 43. connecting seat; 44. connecting plate. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0039] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0040] Embodiment: A tray stacking device, see attached Figure 1 -Attached Figure 7 , including a transmission mechanism 1 for transmitting a pallet in a horizontal direction, a support frame 2 mounted on the transmission mechanism 1, two hook mechanisms 3 for grabbing the pallet, and a lifting mechanism 4 for driving the two hook mechanisms 3 to move up and down; specifically, the two hook mechanisms 3 are respectively located on both sides of the transmission mechanism 1 to grab the pallet through the two hook mechanisms 3; the lifting mechanism 4 is arranged on the support frame 2. Specifically, the lifting mechanism 4 includes a lifting cylinder, and the lifting cylinder drives the hook mechanism 3 to move up and down.

[0041] Specifically, the transmission mechanism 1 includes a support 11, two transmission chains 12 arranged on the support 11, and a stop cylinder 14 arranged on the support 11. The two transmission chains 12 are respectively located on both sides of the support 11, and the pallet is transmitted through the two transmission chains 12; the stop cylinder 14 is fixedly connected to the support 11 and is located between the two transmission chains 12. The stop cylinder 14 is arranged on the side of the support frame 2 that is away from the conveying direction of the pallet. The piston rod of the stop cylinder 14 slides vertically on the support 11. When the piston rod of the stop cylinder 14 retracts, the height of the top of the piston rod is lower than the height of the top of the two transmission chains 12. When the piston rod of the stop cylinder 14 extends, the height of the top of the piston rod is higher than the height of the top of the two transmission chains 12, thereby preventing the pallet transmitted by the two transmission chains 12 from continuing to be transmitted forward, and positioning the pallet at the support frame 2.

[0042] Specifically, the transmission mechanism 1 includes two limit plates 13, which are respectively fixedly connected to the two sides of the top of the bracket 11. The two limit plates 13 are located on the two sides of the two transmission chains 12 that are away from each other. The limit plates 13 are vertically arranged, and the length directions of the two limit plates 13 are arranged along the transmission direction of the pallet.

[0043] The two limiting plates 13 limit the two sides of the tray respectively, so that the two sides of the tray are positioned by the two limiting plates 13 .

[0044] Specifically, one end of the two limit plates 13 near the feeding end of the two conveyor chains 12 is set as an arc portion, and the two arc portions extend in a direction away from each other at one end away from the support frame 2. Through the setting of the arc portion, the tray conveyed on the conveyor chain 12 can enter between the two limit plates 13 under the guidance of the two arc portions.

[0045] Specifically, the transmission mechanism 1 further includes a motor 15, which is fixed on the bracket 11 and is connected to the transmission chain 12 through a chain and a sprocket. The transmission chain 12 is driven by the motor 15 to move.

[0046] Specifically, the support frame 2 includes a bottom welding frame 21 disposed at the bottom of the support 11, two side welding frames 22 fixedly connected to the top of the bottom welding frame 21 on both sides, and a top connecting beam 23 fixedly connected to the top of the two side welding frames 22. The two side welding frames 22 are respectively located on both sides of the support 11 and are vertically arranged; the top connecting beam 23 is located above the support 11. The two hook mechanisms 3 slide up and down on the side where the two side welding frames 22 are close to each other.

[0047] Specifically, the lifting mechanism 4 includes two lifting cylinders, which are respectively a first lifting cylinder 41 and a second lifting cylinder 42; the cylinder bodies of the first lifting cylinder 41 and the second lifting cylinder 42 are fixedly connected together, the piston rod of the first lifting cylinder 41 is fixedly connected to a connecting seat 43, the connecting seat 43 is fixedly connected to the side welding frame 22, and the piston rod of the second lifting cylinder 42 is fixedly connected to a connecting plate 44, and the connecting plate 44 is connected to the hook mechanism 3.

[0048] Specifically, the hook mechanism 3 includes a lifting plate 31, a lifting hook 32 and a telescopic cylinder 33. The lifting plate 31 is fixedly connected to the connecting plate 44; two lifting hooks 32 are provided and can slide in the horizontal direction at the bottom of the lifting plate 31, and the sliding direction of the lifting hook 32 is perpendicular to the transmission direction of the pallet; the cylinder body of the telescopic cylinder 33 is fixedly connected to the lifting plate 31, and the piston rod of the telescopic cylinder 33 is fixedly connected to the two lifting hooks 32 through a connecting rod to drive the two lifting hooks 32 to slide through the telescopic cylinder 33.

[0049] The lifting hook 32 is fixedly connected with a slider 35, and a slide rail 34 is provided on the lifting plate 31 at a position corresponding to the lifting hook 32, and the slider 35 can slide on the slide rail 34 in the sliding direction of the lifting hook 32. The sliding direction of the lifting hook 32 can be guided by the arrangement of the slider 35 and the slide rail 34.

[0050] Specifically, two vertically arranged positioning rails 24 are fixedly connected to the sides of the two side welding frames 22 close to each other; two fixing seats are fixedly connected to the side welding frames 22 corresponding to the lifting plate 31, and two positioning blocks 25 are fixedly connected to the two fixing seats. The two positioning blocks 25 slide vertically on the two positioning rails 24 on the side welding frames 22. Through the arrangement of the positioning blocks 25 and the positioning rails 24, the lifting plate 31 can be positioned and guided in the up and down sliding direction.

[0051] Specifically, an elastic buffer pad 36 is fixedly connected to the top of the lifting hook 32. Through the provision of the buffer pad, the contact between the lifting hook 32 and the pallet can be buffered, thereby reducing damage to the pallet.

[0052] Two groups of optical sensors are arranged on the two side welding frames 22, one group of which is used to detect whether there is a pallet at the support frame 2 of the transmission mechanism 1, and the other group of optical sensors is used to detect whether the number of pallets lifted by the two hook mechanisms 3 exceeds a set number. The optical sensor includes a light emitting part and a light receiving part, which are respectively fixedly connected to the two side welding frames 22; the sensor for detecting whether there is a pallet at the support frame 2 of the transmission mechanism 1 is set as a detection sensor, and the sensor for detecting whether the number of pallets lifted by the two hook mechanisms 3 exceeds a set number is set as a quantitative sensor.

[0053] When the pallet is transmitted to the support frame 2 on the transmission mechanism 1, the light emitted by the light emitting part in the detection sensor is blocked by the pallet. At this time, the light receiving part does not receive the light signal, and it is judged that there is a pallet at the support frame 2 of the transmission mechanism 1 at this time, and then the piston rod of the stopping cylinder 14 is controlled to extend upward to stop the pallet at the support frame 2, and then the piston rod of the first lifting cylinder 41 is extended, so that the pallet on the lifting hook 32 falls onto the pallet of the transmission mechanism 1, and then the piston rod of the telescopic cylinder 33 is retracted, so that the lifting hook 32 is retracted and the support of the pallet is released, and then the piston rod of the second lifting cylinder 42 is extended, so that the lifting hook 32 is aligned with the pallet supported on the transmission mechanism 1, and then the piston rod of the telescopic cylinder 33 is extended, so that the lifting hook 32 extends to the bottom of the pallet, and then the piston rods of the first lifting cylinder 41 and the second lifting cylinder 42 are retracted to lift the stacked pallets upward.

[0054] When the topmost pallet stacked on the lifting hook 32 blocks the light emitted by the light emitting part on the quantitative sensor, the light receiving part does not receive the light signal, and it is judged that the number of pallets on the lifting hook 32 has reached the set number. Then the piston rods of the first lifting cylinder 41 and the second lifting cylinder 42 are extended, so that the stacked pallets fall onto the conveying mechanism 1, and then the piston rod of the telescopic cylinder 33 is retracted, driving the lifting hook 32 to release the support of the pallet, so that the stacked pallets can be transported away by the conveying mechanism 1.

[0055] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pallet stacking device, characterized in that: It comprises a transmission mechanism (1), wherein the transmission mechanism (1) is used to transmit the pallet in a horizontal direction; A support frame (2), wherein the support frame (2) is mounted on the transmission mechanism (1); A hook mechanism (3), wherein two hook mechanisms (3) are provided, and the two hook mechanisms (3) are respectively located on both sides of the transmission mechanism (1) so as to realize the grabbing of the pallet through the two hook mechanisms (3); and a lifting mechanism (4), wherein two lifting mechanisms (4) are provided and the lifting mechanisms (4) are arranged on the support frame (2), the two lifting mechanisms (4) respectively correspond to the two hook mechanisms (3), and the lifting mechanisms (4) are used to drive the corresponding hook mechanisms (3) to move up and down; The lifting mechanism (4) comprises a lifting cylinder.

2. A tray stacking device according to claim 1, characterized in that: The transmission mechanism (1) comprises a bracket (11); A transmission chain (12), wherein two transmission chains (12) are provided, and the two transmission chains (12) are respectively located on both sides of the bracket (11), and the pallet is transmitted through the two transmission chains (12); and a stopping cylinder (14), wherein the stopping cylinder (14) is fixedly connected to the bracket (11) and is located between the two transmission chains (12), and the stopping cylinder (14) is used to position and stop the tray at the support frame (2) by extending a piston rod.

3. A tray stacking device according to claim 2, characterized in that: The transmission mechanism (1) comprises two limit plates (13), the two limit plates (13) are respectively fixedly connected to the two sides of the top of the bracket (11), the two limit plates (13) are located on the two sides of the two transmission chains (12) that are away from each other, the limit plates (13) are vertically arranged, and the length direction of the two limit plates (13) is arranged along the transmission direction of the pallet.

4. A tray stacking device according to claim 3, characterized in that: The transmission mechanism (1) also includes a motor (15), which is fixed on the bracket (11) and is connected to the transmission chain (12) through a chain and a sprocket.

5. The tray stacking device according to claim 4, characterized in that: The support frame (2) comprises a bottom welding frame (21), and the bottom welding frame (21) is located at the bottom of the bracket (11); Side welding frames (22), wherein two side welding frames (22) are provided, and the two side welding frames (22) are respectively located on both sides of the bracket (11) and are vertically arranged; and a top connecting beam (23), the top connecting beam (23) being located above the bracket (11) and being fixedly connected to the tops of the two side welding frames (22); The two hook mechanisms (3) slide up and down respectively on the sides of the two side welding frames (22) that are close to each other.

6. The tray stacking device according to claim 5, characterized in that: The lifting mechanism (4) comprises two lifting cylinders, the two lifting cylinders are respectively a first lifting cylinder (41) and a second lifting cylinder (42); The cylinder bodies of the first lifting cylinder (41) and the second lifting cylinder (42) are fixedly connected together, the piston rod of the first lifting cylinder (41) is fixedly connected to a connecting seat (43), the connecting seat (43) is fixedly connected to the side welding frame (22), the piston rod of the second lifting cylinder (42) is fixedly connected to a connecting plate (44), and the connecting plate (44) is connected to the hook mechanism (3).

7. The tray stacking device according to claim 6, characterized in that: The hook mechanism (3) comprises a lifting plate (31), and the lifting plate (31) is fixedly connected to a connecting plate (44); A lifting hook (32), wherein two lifting hooks (32) are provided and can slide in a horizontal direction at the bottom of the lifting plate (31), and the sliding direction of the lifting hook (32) is perpendicular to the transmission direction of the tray; and a telescopic cylinder (33), wherein the cylinder body of the telescopic cylinder (33) is fixedly connected to the lifting plate (31), and the piston rod of the telescopic cylinder (33) and the two lifting hooks (32) are fixedly connected together through a connecting rod so that the telescopic cylinder (33) drives the two lifting hooks (32) to slide.

8. The tray stacking device according to claim 7, characterized in that: The lifting hook (32) is fixedly connected with a slider (35), and a slide rail (34) is arranged on the lifting plate (31) at a position corresponding to the lifting hook (32), and the slider (35) can slide on the slide rail (34) in the sliding direction of the lifting hook (32).

9. The tray stacking device according to claim 8, characterized in that: Two vertically arranged positioning guide rails (24) are fixedly connected to the sides of the two side welding frames (22) that are close to each other; Two fixing seats are fixedly connected to one side of the lifting plate (31) close to the corresponding side welding frame (22), and two positioning blocks (25) are fixedly connected to the two fixing seats. The two positioning blocks (25) slide vertically on two positioning guide rails (24) on the side welding frame (22) respectively.

10. The tray stacking device according to claim 9, characterized in that: Two groups of optical sensors are arranged on the two side welding frames (22), one group of optical sensors is used to detect whether there are pallets on the support frame (2) of the transmission mechanism (1), and the other group of optical sensors is used to detect whether the number of pallets lifted by the two hook mechanisms (3) exceeds a set number.

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