A de-stacking mechanism of a tray de-stacking and stacking machine

Abstract

The utility model discloses a kind of unstacking mechanism of tray unstacking and stacking machine, including rack and be located on the tray conveying line of rack, tray support component and a pair of tray blocking lifting assembly;Tray conveying line is used to receive tray stack to be unstacked from last station, and the tray of bottom layer is conveyed to next station;A pair of tray blocking lifting assembly is separately arranged at the both sides of tray conveying line, for blocking the tray of bottom layer in tray stack, and lifting second layer tray to predetermined height to make the tray of bottom layer separate from tray stack;Tray support component is located in the middle of the tray conveying line, and it is below tray stack, for receiving second layer tray and lowering its position to tray conveying line.The unstacking mechanism of tray unstacking and stacking machine of the utility model integrates the blocking element of bottom layer tray and the lifting assembly of second layer tray at the both sides of tray conveying line, and the receiving element of tray stack is located in the middle of tray conveying line, so that the whole structure unstacking mechanism structure is simple, compact, and the unstacking mechanism can also realize stacking function simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of non-standard automated equipment technology, specifically to a depalletizing mechanism for a pallet depalletizing and palletizing machine. Background Technology

[0002] In modern logistics, warehousing, and manufacturing, pallets serve as a widely used cargo-carrying platform and are a key medium for transforming static goods into dynamic goods. They can be easily used in conjunction with forklifts, stackers, and other handling equipment for the handling, storage, and transportation of goods, greatly improving logistics efficiency. In actual storage, to make full use of space, pallets are typically stored in a stacked manner. This necessitates the destacking process after each use.

[0003] However, most existing depalletizers are designed for specific products or packaging formats, and their application to pallet depalletizing reveals numerous problems. For example, some traditional depalletizers have complex structural designs that are difficult to adapt to the structural characteristics of pallets, leading to operational errors during pallet gripping and handling, and making it impossible to complete depalletizing tasks accurately and efficiently. This causes many inconveniences for pallets during storage and use, greatly limiting the efficient circulation of pallets in logistics and related industries.

[0004] Furthermore, traditional manual depalletizing of multi-layer pallets is not only time-consuming and labor-intensive, but also extremely inefficient. In high-intensity work environments, it is prone to human error, posing safety hazards. This is especially true in industries with extremely high requirements for hygiene and production efficiency, such as food and pharmaceuticals, where the drawbacks of manual depalletizing are becoming increasingly apparent. For example, in the food industry, frequent manual handling of pallets may pose a potential threat to food hygiene and safety, while the speed of manual operation is insufficient to meet the demands of large-scale, high-efficiency production.

[0005] Therefore, the development of a device specifically designed for pallet depalletizing is urgently needed. This device must possess efficient, precise, and stable depalletizing performance, while reducing equipment costs and installation space requirements, and improving operational safety and automation to meet the growing demand for high-efficiency operations in modern logistics and related industries. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a destacking mechanism for a pallet destacking and palletizing machine. The destacking mechanism integrates the blocking element of the bottom pallet and the lifting component of the second pallet on both sides of the pallet conveyor line, and sets the pallet stacking receiving element in the middle of the pallet conveyor line, so that the entire structure of the destacking mechanism is simple and compact, and the destacking mechanism can also realize the palletizing function.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] This utility model provides a depalletizing mechanism for a pallet depalletizing and palletizing machine, including a frame and a pallet conveyor line, a pallet support assembly, and a pair of pallet blocking and lifting assemblies mounted on the frame. The pallet conveyor line receives pallet stacks to be depalletized from the previous station and conveys the bottom pallet to the next station. The pair of pallet blocking and lifting assemblies are located on both sides of the pallet conveyor line to block the bottom pallet in the pallet stack and lift the second layer of pallets to a predetermined height so that the bottom pallet is separated from the pallet stack. The pallet support assembly is located in the middle of the pallet conveyor line and below the pallet stack to receive the second layer of pallets and lower its position onto the pallet conveyor line.

[0009] The tray blocking and lifting assembly includes:

[0010] The mounting base plate is mounted on the frame;

[0011] The bottom pallet limiting assembly is provided on the mounting base plate, and includes a blocking cylinder fixed on the mounting base plate and a blocking plate driven by the blocking cylinder to move toward the pallet stack to block the bottom pallet.

[0012] A lifting assembly, disposed on the mounting base plate, includes a lifting cylinder fixed to the mounting base plate and a lifting plate driven to rise and fall by the lifting cylinder; and

[0013] An insertion assembly, disposed on the lifting plate, includes an insertion cylinder fixed to the lifting plate and an insertion plate driven by the insertion cylinder to move toward the pallet stack to insert into the underside of the second layer of pallets.

[0014] In some preferred embodiments of this utility model, the tray is a blister tray, the periphery of its bottom surface has a base plate, and the periphery of its surface has a plurality of protrusions distributed periodically.

[0015] In some preferred embodiments of this utility model, both the baffle plate and the insert plate are provided with grooves on the side facing the pallet stack that match the surface shape of the blister tray.

[0016] In some preferred embodiments of this invention, the height of the baffle plate is slightly higher than the height of the substrate of the lowest tray.

[0017] In some preferred embodiments of this utility model, a first guide sleeve is provided on each side of the lifting cylinder on the mounting base plate, and a first guide post is fixed at the corresponding position on the lifting plate. The lower end of the first guide post passes through the first guide sleeve and through the mounting base plate.

[0018] In some preferred embodiments of this utility model, a straight guide rail is fixed on each side of the lifting plate located on the insertion cylinder, and the two sides of the insertion plate are slidably connected to the straight guide rail.

[0019] In some preferred embodiments of this utility model, the pallet support assembly includes a support base plate, a lifting cylinder, and a receiving plate that is lifted and lowered by the lifting cylinder. The support base plate is disposed on the frame, and the lifting cylinder is fixed on the support base plate.

[0020] In some preferred embodiments of this utility model, a second guide sleeve is provided at each of the four corners of the supporting base plate, and a second guide post is fixed at the corresponding position on the receiving plate. The lower end of the second guide post passes through the second guide sleeve and through the supporting base plate.

[0021] In some preferred embodiments of this utility model, at least one proximity sensor is provided on the receiving plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The depalletizing mechanism of the pallet depalletizing and palletizing machine provided by this utility model can block the bottom pallet by setting a bottom pallet limiting component, so as to prevent the bottom pallet from being lifted when the second layer of pallets is lifted, thereby improving the smoothness and stability of the depalletizing process.

[0024] 2. The pallet depalletizing and palletizing machine provided by this utility model integrates the blocking element of the bottom pallet and the lifting component of the second pallet on both sides of the pallet conveyor line, and sets the pallet stacking receiving element in the middle of the pallet conveyor line, so that the entire structure of the depalletizing mechanism is simple and compact, and the depalletizing mechanism can also realize the palletizing function. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a pallet depalletizing and palletizing machine according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the structure of the middle tray;

[0027] Figure 3 for Figure 1 Schematic diagram of the destacking mechanism;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure of the middle tray blocking and lifting component;

[0029] Figure 5 for Figure 4 Another structural diagram of the middle tray blocking and lifting component;

[0030] Figure 6 for Figure 3 Schematic diagram of the structure of the middle pallet support assembly;

[0031] Explanation of the labels in the diagram:

[0032] 100. Rack;

[0033] 200. Pallet conveyor line;

[0034] 300. Pallet blocking and lifting assembly; 310. Mounting base plate; 320. Bottom pallet limiting assembly; 321. Blocking cylinder; 322. Blocking plate; 323. Insertion groove; 330. Lifting assembly; 331. Lifting cylinder; 332. Lifting plate; 333. First guide sleeve; 334. First guide post; 340. Insertion assembly; 341. Insertion cylinder; 342. Insertion plate; 343. Linear guide rail;

[0035] 400. Pallet support assembly; 410. Support base plate; 420. Lifting cylinder; 430. Receiving plate; 440. Second guide sleeve; 450. Second guide post; 460. Proximity sensor;

[0036] 500, pallet stacking; 510, pallet; 511, base plate; 512, protruding pillar. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The directional terms used in this invention, such as upper, lower, front, back, left, right, inner, outer, upper surface, lower surface, side, top surface, bottom, front end, rear end, and end, are merely directions in the accompanying drawings and are used only to explain and illustrate this invention, not to limit the scope of protection of this invention.

[0039] In the accompanying drawings, components with identical structures are indicated by the same numerical designation. When some components are described as being "on" another component, the component may be directly placed on the other component; alternatively, an intermediate component may exist, on which the component is placed, and the intermediate component is placed on the other component. When a component is described as being "mounted to" or "connected to" another component, both can be understood as being directly "mounted" or "connected," or as one component being indirectly "mounted to" or "connected to" another component via an intermediate component.

[0040] Please see Figure 1 This utility model discloses a pallet depalletizing and palletizing machine, which includes a frame 100 and a depalletizing mechanism and a palletizing mechanism disposed on the frame 100, and is capable of automatically depalletizing and palletizing pallet stacks 500. The depalletizing mechanism includes a pallet conveyor line 200, a pallet support assembly 400, and a pair of pallet blocking and lifting assemblies 300.

[0041] Please see Figure 1 and 3 The pallet conveyor line 200 is used to receive pallet stacks 500 to be destacking from the previous station and transport the bottom pallet 510 to the next station. The previous station is a conveyor line for empty pallet stacks 500, which can be placed manually or by machine and transported onto the pallet conveyor line 200. In this embodiment, three sets of empty pallet stacks 500 can be placed on the conveyor line simultaneously. Sensors are installed at corresponding positions on the conveyor line to detect whether the conveyor line is full of empty pallet stacks 500.

[0042] Please see Figure 2 The tray 510 of this utility model is a blister tray, with a base plate 511 around its bottom surface and a plurality of protrusions 512 periodically distributed on its circumference.

[0043] Please see Figure 3 A pair of pallet blocking and lifting assemblies 300 are respectively disposed on both sides of the pallet conveyor line 200 to block the bottom pallet 510 in the pallet stack 500 and lift the second layer of pallets 510 to a predetermined height so that the bottom pallet 510 is separated from the pallet stack 500. Specifically, the pallet blocking and lifting assembly 300 includes a mounting base plate 310, a bottom pallet limiting assembly 320, a lifting assembly 330, and an insertion assembly 340, wherein the mounting base plate 310 is fixed to the frame 100.

[0044] Please see Figure 3-5The bottom tray limiting assembly 320 is mounted on the mounting base plate 310 and includes a blocking cylinder 321 and a blocking plate 322. The blocking cylinder 321 is horizontally mounted on the mounting base plate 310, and the blocking plate 322 is fixedly connected to the piston rod of the blocking cylinder 321, with its height slightly higher than the height of the base plate 511 of the bottom tray 510. The blocking cylinder 321 can drive the blocking plate 322 to move toward the tray stack 500 and block the bottom tray 510, preventing the bottom tray 510 from being lifted when the second layer of trays 510 is raised.

[0045] Preferably, the side of the baffle plate 322 facing the pallet stack 500 is provided with a groove 323 that matches the surface shape of the blister tray. When the blocking cylinder 321 drives the baffle plate 322 to move toward the pallet stack 500, the groove 323 on the baffle plate 322 engages with the protrusion 512 on the bottom tray 510 and presses against the base plate 511 of the bottom tray 510, thereby blocking the bottom tray 510.

[0046] Please see Figure 3-5 The lifting assembly 330 is mounted on the mounting base plate 310 and includes a lifting cylinder 331 and a lifting plate 332. The lifting cylinder 331 is vertically fixed to the mounting base plate 310, and its piston rod is fixedly connected to the lifting cylinder 331. The lifting cylinder 331 drives the lifting motion. In some embodiments, a first guide sleeve 333 is provided on each side of the lifting cylinder 331 on the mounting base plate 310, and a first guide post 334 is fixed at a corresponding position on the lifting plate 332. The first guide post 334 is configured such that its lower end passes through the first guide sleeve 333 and through the mounting base plate 310. In this embodiment, the lifting motion of the lifting plate 332 is guided by a pair of first guide posts 334, improving the smoothness of the lifting motion.

[0047] Please see Figure 3-5The insertion assembly 340 is disposed on the lifting plate 332 and includes an insertion cylinder 341 and an insertion plate 342. The insertion cylinder 341 is horizontally mounted on the lifting plate 332, and the insertion plate 342 is fixedly connected to the piston rod of the insertion cylinder 341, with its height slightly lower than the height of the base plate 511 of the second layer pallet 510. The insertion plate 342 is driven by the insertion cylinder 341 to move towards the pallet stack 500, thereby inserting itself into the underside of the second layer pallet 510 in the pallet stack 500. Preferably, the insert plate 342 has a groove 323 on the side facing the tray stack 500 that matches the surface shape of the blister tray. When the insert cylinder 341 drives the insert plate 342 to move toward the tray stack 500, the groove 323 on the insert plate 342 engages with the protrusion 512 on the bottom tray 510 and contacts the lower side of the substrate 511 of the second tray 510. Then, the lifting cylinder 331 drives the lifting plate 332 to rise, and the insert plate 342 rises accordingly, so that the substrate 511 of the second tray 510 overlaps the upper side of the insert plate 342 and is lifted by the insert plate 342.

[0048] In some embodiments, a straight guide rail 343 is fixed on each side of the lifting plate 332 located on the insertion cylinder 341, and the two sides of the insertion plate 342 are slidably connected to the straight guide rail 343, thereby improving the smoothness of the movement of the insertion plate 342.

[0049] Please see Figure 6 The pallet support assembly 400 includes a support base plate 410, a lifting cylinder 420, and a receiving plate 430. The support base plate 410 is fixed to a bracket, the lifting cylinder 420 is vertically mounted on the support base plate 410, and the receiving plate 430 is fixed to the piston rod of the lifting cylinder 420 and is driven by the lifting cylinder 420 to perform lifting and lowering movements. In some embodiments, a second guide sleeve 440 is provided at each of the four corners of the support base plate 410, and a second guide post 450 is fixed at a corresponding position on the receiving plate 430. The second guide post 450 is configured such that its lower end passes through the second guide sleeve 440 and through the support base plate 410, thereby guiding the lifting and lowering of the receiving plate 430.

[0050] In some embodiments of this utility model, at least one proximity sensor 460 is also provided on the receiving plate 430 for detecting whether the pallet stack 500 is placed on the pallet conveyor line 200 and whether the receiving plate 430 rises to the lower end of the second pallet 510.

[0051] The depalletizing mechanism of the pallet depalletizing and stacking machine of this utility model has the following working process:

[0052] 1. The pallet stack 500 is transported to the pallet conveyor line 200 from the previous station. The proximity sensor 460 on the receiving plate 430 detects whether the pallet stack 500 has moved into position. If it has moved into position, the pallet conveyor line 200 stops moving, the blocking cylinder 321 is activated, and the blocking plate 322 moves toward the pallet stack 500 and presses against the base plate 511 of the bottom pallet 510 to block the bottom pallet 510.

[0053] 2. The insertion cylinder 341 is activated, which drives the insertion plate 342 to move towards the pallet stack 500, so that it overlaps the underside of the base plate 511 of the second pallet 510. Then, the lifting cylinder 331 is activated, which drives the lifting plate 332 to rise, and the second and above pallet stacks 500 are lifted by the insertion plate 342, thereby separating them from the bottom pallet 510.

[0054] 3. The blocking cylinder 321 drives the blocking plate 322 to retract, and the pallet conveyor line 200 starts to transport the bottom pallet 510 to the next station.

[0055] 4. The lifting cylinder 420 is activated, which drives the receiving plate 430 to rise and lift it to the lower end of the second pallet 510; then, the insertion cylinder 341 and the lifting cylinder 331 drive the insertion plate 342 and the lifting plate 332 to return to their initial positions respectively.

[0056] 5. The lifting cylinder 420 drives the second and above pallet stacks 500 to descend until they are placed on the pallet conveyor line 200.

[0057] 6. Repeat the above steps to achieve pallet stacking of 500.

[0058] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A depalletizing mechanism for a pallet depalletizing and stacking machine, characterized in that, The system includes a frame and a pallet conveyor line, pallet support components, and a pair of pallet blocking and lifting components mounted on the frame. The pallet conveyor line receives pallet stacks to be destacking from the previous station and conveys the bottom pallet to the next station. The pair of pallet blocking and lifting components are located on both sides of the pallet conveyor line to block the bottom pallet in the pallet stack and lift the second layer of pallets to a predetermined height so that the bottom pallet is separated from the pallet stack. The pallet support components are located in the middle of the pallet conveyor line and below the pallet stack to receive the second layer of pallets and lower their position onto the pallet conveyor line. The tray blocking and lifting assembly includes: The mounting base plate is mounted on the frame; The bottom pallet limiting assembly is provided on the mounting base plate, and includes a blocking cylinder fixed on the mounting base plate and a blocking plate driven by the blocking cylinder to move toward the pallet stack to block the bottom pallet. A lifting assembly, disposed on the mounting base plate, includes a lifting cylinder fixed to the mounting base plate and a lifting plate driven to rise and fall by the lifting cylinder; and An insertion assembly, disposed on the lifting plate, includes an insertion cylinder fixed to the lifting plate and an insertion plate driven by the insertion cylinder to move toward the pallet stack to insert into the underside of the second layer of pallets.

2. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 1, characterized in that, The tray is a blister tray with a base plate around its bottom perimeter and multiple protrusions periodically distributed on its perimeter.

3. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 2, characterized in that, Both the baffle plate and the insert plate have grooves on the side facing the stacked trays that match the surface shape of the blister tray.

4. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 2, characterized in that, The height of the baffle plate is slightly higher than the height of the base plate of the bottom tray.

5. The depalletizing mechanism of a pallet depalletizing and palletizing machine according to claim 1, characterized in that, The mounting base plate is provided with a first guide sleeve on each side of the lifting cylinder, and a first guide post is fixed at the corresponding position on the lifting plate. The lower end of the first guide post passes through the first guide sleeve and through the mounting base plate.

6. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 1, characterized in that, A straight guide rail is fixed on each side of the lifting plate located on the insertion cylinder, and the two sides of the insertion plate are slidably connected to the straight guide rail.

7. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 1, characterized in that, The pallet support assembly includes a support base plate, a lifting cylinder, and a receiving plate that is lifted and lowered by the lifting cylinder. The support base plate is mounted on the frame, and the lifting cylinder is fixed to the support base plate.

8. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 7, characterized in that, The support base plate is provided with a second guide sleeve at each of its four corners, and a second guide post is fixed at the corresponding position on the receiving plate. The lower end of the second guide post passes through the second guide sleeve and through the support base plate.

9. The depalletizing mechanism of a pallet depalletizing and stacking machine according to claim 7, characterized in that, The receiving plate is equipped with at least one proximity sensor.

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