Tray discharging device

Abstract

The utility model discloses a tray discharging device which comprises a first roller conveyor, a limiting mechanism, a steering mechanism, a second roller conveyor and a stacking mechanism. A tray is placed on the first roller conveyor, and the first roller conveyor conveys the tray to the steering mechanism; the limiting mechanisms are arranged on the two sides of the first roller conveyor and limit the moving path of the tray. The steering mechanism is arranged at the bottom of the first roller conveyor, the steering mechanism is connected with the second roller conveyor, and the steering mechanism drives the tray to move from the first roller conveyor to the second roller conveyor; the stacking mechanism is arranged on one side of the second roller conveyor, and the stacking mechanism clamps and lifts the trays on the second roller conveyor so as to drive the trays to be stacked layer by layer. The tray stacking device can achieve automatic discharging and stacking of trays, is high in efficiency and low in labor cost, remarkably reduces the labor intensity of workers, and is good in safety.

Description

Technical Field

[0001] This utility model relates to the field of mechanical production technology, and in particular to a pallet unloading device. Background Technology

[0002] Pallets, also known as stacks or pallets, are horizontal platform devices used to unite multiple goods into a single unit, facilitating stacking, saving space, and supporting stable load-bearing during handling and transportation. They are widely used in production, transportation, warehousing, and distribution. In existing technologies, during the transportation of cardboard boxes, the cardboard boxes are placed on pallets. After the pallets transport the boxes to the designated location, machines at other workstations grab the cardboard boxes from the pallets for processing. The pallets then need to be unloaded to facilitate the subsequent transport of other cardboard boxes. After unloading, the pallets need to be stacked for storage. These operations are mostly performed manually, resulting in high labor intensity, low efficiency, and poor safety. Summary of the Invention

[0003] According to an embodiment of the present invention, a pallet unloading device is provided, comprising: a first roller conveyor, a limiting mechanism, a turning mechanism, a second roller conveyor, and a stacking mechanism;

[0004] A pallet is placed on the first roller conveyor, and the first roller conveyor conveys the pallet to the turning mechanism;

[0005] The limiting mechanism is set on both sides of the first roller conveyor, and the limiting mechanism limits the movement path of the pallet;

[0006] The steering mechanism is located at the bottom of the first roller conveyor and is connected to the second roller conveyor. The steering mechanism drives the pallet to move from the first roller conveyor to the second roller conveyor.

[0007] The stacking mechanism is located on one side of the second roller conveyor. The stacking mechanism clamps and lifts the pallets on the second roller conveyor to drive the pallets to be stacked layer by layer.

[0008] Furthermore, the conveying direction of the second roller conveyor is perpendicular to the conveying direction of the first roller conveyor.

[0009] Furthermore, the limiting mechanism includes: a first positioning plate, a second positioning plate, several connecting rods, and a push cylinder;

[0010] One end of several connecting rods is fixed to one side of the first roller conveyor, and the several connecting rods are parallel to each other;

[0011] The first positioning plate is fixed to the other end of several connecting rods;

[0012] The push cylinder is fixed on the other side of the first roller conveyor. The output end of the push cylinder is connected to the second positioning plate. The push cylinder drives the second positioning plate to move closer to or away from the first positioning plate. The second positioning plate and the first positioning plate together define the movement path of the pallet.

[0013] Furthermore, the limiting mechanism also includes: a pair of first guide shafts and a pair of first sliding bearings;

[0014] A pair of first sliding bearings are fixed on the other side of the first roller conveyor and respectively sleeved on a pair of first guide shafts;

[0015] One end of a pair of first guide shafts is connected to a second positioning plate, and the length direction of the first guide shafts is parallel to the pushing direction of the push cylinder.

[0016] Furthermore, the stacking mechanism includes: a fixing frame, a mounting plate, a pair of clamping components, a lifting cylinder, and a first guide rail;

[0017] The fixing frame is located on one side of the second roller conveyor;

[0018] The lifting cylinder and the first guide rail are vertically fixed on the fixed frame;

[0019] The mounting plate is slidably mounted on the first guide rail and connected to the output end of the lifting cylinder.

[0020] A pair of gripping components are respectively located at both ends of the mounting plate, and the pair of gripping components grip the tray;

[0021] The lifting cylinder drives the mounting plate to rise and fall.

[0022] Furthermore, the gripping assembly includes: a second guide rail, a cylinder, a slide plate, and a gripping bar;

[0023] The second guide rail and the cylinder are fixed to the mounting plate;

[0024] The slide plate is mounted on the second guide rail and connected to the output end of the cylinder.

[0025] The clamp is fixed to the skateboard;

[0026] The cylinder drives the slide plate to move along the second guide rail, causing the clamping rod to move closer to or away from the tray.

[0027] Furthermore, several lifting plates are fixed on the clamping rod. The lifting plates are inserted into the bottom of the pallet, and the lifting plates raise and lower, causing the pallet to rise and fall.

[0028] Furthermore, the steering mechanism includes: a lifting assembly, a drive motor, a rotating shaft, and several conveying components;

[0029] Several conveying components are arranged at the bottom of the first roller conveyor, and the conveying components are located at the gap between the rollers of the first roller conveyor. The conveying direction of the conveying components is the same as that of the second roller conveyor.

[0030] The drive motor is fixed on one of the conveying components, and the output end of the drive motor is connected to the rotating shaft to drive the rotating shaft to rotate.

[0031] A rotating shaft passes through and is connected to several conveying components. The rotation of the rotating shaft drives the several conveying components to transport the pallet.

[0032] The lifting component is located at the bottom of several conveying components and is connected to several conveying components, driving several conveying components to rise and fall.

[0033] Furthermore, the lifting assembly includes: a lifting cylinder, a lifting rod, a base plate, a pair of second guide shafts, and a pair of second sliding bearings;

[0034] The base plate is set at the bottom of several conveying components;

[0035] A pair of second guide shafts are fixed at both ends of the base plate;

[0036] A pair of second sliding bearings are respectively sleeved on a pair of second guide shafts, and the pair of second sliding bearings are respectively fixed on the corresponding conveying components;

[0037] The lifting rod is fixed to several conveying components;

[0038] The lifting cylinder is fixed on the base plate, and the output end of the lifting cylinder is connected to the lifting rod, which drives the lifting rod and several conveying components to rise and fall.

[0039] Furthermore, the conveying assembly includes: a lifting frame, a conveying chain, a pair of first sprockets, a second sprocket, and a third sprocket;

[0040] The bottom of the lifting frame is connected to the lifting assembly;

[0041] A pair of first sprockets are respectively mounted at both ends of the lifting frame;

[0042] The second and third sprockets are rotatably mounted in the middle of the lifting frame, with the second sprocket sleeved on the rotating shaft;

[0043] A pair of first sprockets, second sprockets, and third sprockets are located on the same plane;

[0044] The conveyor chain is fitted onto a pair of first and second sprockets and abuts against a third sprocket;

[0045] The rotating shaft rotates, driving the second sprocket to rotate, which in turn drives the conveyor chain, the third sprocket, and a pair of first sprockets to rotate.

[0046] The pallet unloading device according to the present invention can realize automated unloading and stacking of pallets, which is highly efficient, has low labor costs, significantly reduces the labor intensity of workers, and is safe.

[0047] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the pallet unloading device according to an embodiment of the present utility model;

[0049] Figure 2 This is a schematic diagram of the pallet unloading device according to an embodiment of the present utility model;

[0050] Figure 3 This is a schematic diagram of the stacking mechanism of the pallet unloading device according to an embodiment of the present utility model;

[0051] Figure 4 This is a bottom view of the steering mechanism of the pallet unloading device according to an embodiment of the present utility model;

[0052] Figure 5 This is a side view of the steering mechanism of the pallet unloading device according to an embodiment of the present utility model. Detailed Implementation

[0053] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0054] First, combine Figures 1-5 The pallet unloading device according to an embodiment of the present invention is used for unloading and stacking pallets and has a wide range of applications.

[0055] like Figures 1-5 As shown, the pallet unloading device of this utility model embodiment includes: a first roller conveyor 1, a limiting mechanism, a turning mechanism, a second roller conveyor 2, and a stacking mechanism.

[0056] Specifically, such as Figures 1-5 As shown, in this embodiment, a pallet 3 is placed on the first roller conveyor 1. The pallet 3 is used to place cardboard 4. Different items can also be placed on it according to different usage scenarios. The first roller conveyor 1 transports the pallet 3 to the turning mechanism. After the pallet 3 and the cardboard 4 on it move to the turning mechanism, the machines at other workstations grab the cardboard 4 supported on the pallet 3 and carry out the operation. The pallet 3 needs to be unloaded and stacked.

[0057] The limiting mechanism is set on both sides of the first roller conveyor 1. The limiting mechanism limits the movement path of the pallet 3. Since the machines at other workstations only perform the cardboard 4 grabbing operation in a specific area (i.e. above the turning mechanism), the limiting mechanism ensures that the pallet 3 moves accurately to that specific area.

[0058] The steering mechanism is located at the bottom of the first roller conveyor 1 and is connected to the second roller conveyor 2. The steering mechanism drives the pallet 3 to move from the first roller conveyor 1 to the second roller conveyor 2. The steering mechanism connects the first roller conveyor 1 and the second roller conveyor 2 to realize the steering of the pallet 3 and move the pallet 3 from the conveying station to the unloading station.

[0059] The stacking mechanism is located on one side of the second roller conveyor 2. The stacking mechanism grips and lifts the pallet 3 on the second roller conveyor 2 to drive the pallet 3 to be stacked layer by layer. Specifically, the stacking mechanism grabs the pallet 3 and lifts it to the height of one pallet 3 until the next pallet 3 moves to the stacking mechanism. The stacking mechanism then lowers and places the previous pallet 3 on the next pallet 3. Then the next pallet 3 is grabbed and lifted. This cycle is repeated to realize the automated stacking of the pallets 3. After stacking to a specified height, the stacked pallets 3 are removed by external devices or manual labor.

[0060] With the above structure, the device can realize automated unloading and stacking of pallets 3, which is highly efficient, low in labor costs, significantly reduces the labor intensity of workers, and is safe.

[0061] Furthermore, such as Figures 1-5 As shown, in this embodiment, the conveying direction of the second roller conveyor 2 is perpendicular to the conveying direction of the first roller conveyor 1, which significantly reduces the footprint.

[0062] Specifically, such as Figures 1-5 As shown, in this embodiment, the limiting mechanism includes: a first positioning plate 61, a second positioning plate 62, a plurality of connecting rods 63 and a pushing cylinder 64;

[0063] One end of several connecting rods 63 is fixed to one side of the first roller conveyor 1, and the several connecting rods 63 are parallel to each other;

[0064] The first positioning plate 61 is fixed to the other end of a plurality of connecting rods 63, and the first positioning plate 61 is fixed to one side of the first roller conveyor 1 by the plurality of connecting rods 63;

[0065] A push cylinder 64 is fixed on the other side of the first roller conveyor 1. The output end of the push cylinder 64 is connected to the second positioning plate 62. The push cylinder 64 drives the second positioning plate 62 to move closer to or away from the first positioning plate 61. The second positioning plate 62 and the first positioning plate 61 together define the movement path of the pallet 3. In use, the first roller conveyor 1 transports the pallet 3. When it moves to the first positioning plate 61, the push cylinder 64 extends and drives the second positioning plate 62 to push the pallet 3, so that the pallet 3 can only move between the first positioning plate 61 and the second positioning plate 62. The two ends of the first positioning plate 61 and the second positioning plate 62 are inclined in opposite directions. That is, the gap between the first positioning plate 61 and the second positioning plate 62 decreases from the two ends to the middle, which facilitates the smooth guidance of the pallet 3 between the first positioning plate 61 and the second positioning plate 62.

[0066] Furthermore, such as Figures 1-5 As shown, in this embodiment, the limiting mechanism further includes: a pair of first guide shafts 65 and a pair of first sliding bearings 66; the pair of first sliding bearings 66 are fixed on the other side of the first roller conveyor 1 and respectively sleeved on the pair of first guide shafts 65; one end of the pair of first guide shafts 65 is connected to the second positioning plate 62, and the length direction of the first guide shafts 65 is parallel to the pushing direction of the pushing cylinder 64. The first guide shafts 65 and the first sliding bearings 66 improve the stability of the connection and guide the movement direction of the second positioning plate 62.

[0067] Specifically, such as Figures 1-5 As shown, in this embodiment, the stacking mechanism includes: a fixed frame 71, a mounting plate 72, a pair of clamping components, a lifting cylinder 73, and a first guide rail 74; the fixed frame 71 is disposed on one side of the second roller conveyor 2, providing a base for installation and fixation; the lifting cylinder 73 and the first guide rail 74 are vertically fixed on the fixed frame 71; the mounting plate 72 is slidably disposed on the first guide rail 74 and connected to the output end of the lifting cylinder 73, the first guide rail 74 provides a sliding base and guide for the mounting plate 72, and enhances the overall connection strength, and the number of first guide rails 74 can be set to multiple according to requirements; a pair of clamping components are respectively disposed at both ends of the mounting plate 72, and the pair of clamping components clamp the tray 3; the lifting cylinder 73 drives the mounting plate 72 to rise and fall, driving the pair of clamping components and the tray 3 clamped by the pair of clamping components to rise and fall, the pair of clamping components have the same structure, and the pair of clamps achieves clamping and releasing of the tray 3 by closing and opening.

[0068] Furthermore, such as Figures 1-5As shown, in this embodiment, the gripping assembly includes: a second guide rail 75, a cylinder 76, a slide plate 77, and a clamping rod 78; the second guide rail 75 and the cylinder 76 are fixed on the mounting plate 72; the slide plate 77 is slidably disposed on the second guide rail 75 and connected to the output end of the cylinder 76; the clamping rod 78 is fixed on the slide plate 77; the cylinder 76 drives the slide plate 77 to move along the second guide rail 75, thereby causing the clamping rod 78 to move closer to or away from the tray 3. Thus, the two cylinders 76 of a pair of gripping assemblies simultaneously drive the corresponding clamping rods 78 to move closer to or away from the tray 3, thereby achieving the gripping and releasing of the tray 3.

[0069] Furthermore, such as Figures 1-5 As shown, in this embodiment, a number of lifting plates 79 are also fixed on the clamping rod 78. The lifting plates 79 are inserted into the bottom of the tray 3. The lifting plates 79 lift and lower, driving the tray 3 to lift and lower. By inserting the lifting plates 79 into the bottom of the tray 3, the lifting stability of the tray 3 is further ensured.

[0070] Specifically, such as Figures 1-5 As shown, in this embodiment, the steering mechanism includes: a lifting assembly, a drive motor 81, a rotating shaft 82, and several conveying assemblies;

[0071] Several conveying components are arranged at the bottom of the first roller conveyor 1. The conveying components are located at the gap between the rollers of the first roller conveyor 1, that is, between two adjacent rollers. The conveying direction of the conveying components is the same as the conveying direction of the second roller conveyor 2, so that the pallet 3 can be smoothly conveyed onto the second roller conveyor 2.

[0072] A drive motor 81 is fixed on one of the conveying components. The output end of the drive motor 81 is connected to a rotating shaft 82, which drives the rotating shaft 82 to rotate. The rotating shaft 82 passes through several conveying components and is connected to several conveying components. The rotation of the rotating shaft 82 drives several conveying components to convey the tray 3.

[0073] The lifting component is located at the bottom of several conveying components and is connected to several conveying components, driving the several conveying components to rise and fall;

[0074] In use, the first roller conveyor 1 moves the pallet 3 onto several conveying components to prevent the pallet 3 from continuing to move along the conveying direction of the first roller conveyor 1. The lifting components lift several conveying components, causing the pallet 3 to detach from the first roller conveyor 1. After the machines at other workstations grab the cardboard 4 off the pallet 3, the several conveying components then convey the pallet 3 along the direction of the second roller conveyor 2, so that the pallet 3 moves onto the second roller conveyor 2 for unloading.

[0075] Furthermore, such as Figures 1-5 As shown, in this embodiment, the lifting assembly includes: a lifting cylinder 83, a lifting rod 84, a base plate 85, a pair of second guide shafts 86, and a pair of second sliding bearings 87;

[0076] The base plate 85 is set at the bottom of several conveying components, and the number of base plates 85 can be set according to requirements;

[0077] A pair of second guide shafts 86 are fixed at both ends of the base plate 85; a pair of second sliding bearings 87 are respectively sleeved on the pair of second guide shafts 86 and fixed on the corresponding conveying components. The smooth lifting and lowering of several conveying components is achieved through the pair of second guide shafts 86 and the pair of second sliding bearings 87, and the lifting and lowering of several conveying components is guided.

[0078] The lifting rod 84 is fixed on several conveying components; the lifting cylinder 83 is fixed on the base plate 85, and the output end of the lifting cylinder 83 is connected to the lifting rod 84 to drive the lifting rod 84 and several conveying components to rise and fall. The number of lifting rods 84 and lifting cylinders 83 can be set multiple according to requirements.

[0079] Furthermore, such as Figures 1-5 As shown, in this embodiment, the conveying assembly includes: a lifting frame 881, a conveying chain 882, a pair of first sprockets 883, a second sprocket 884, and a third sprocket 885; the bottom of the lifting frame 881 is connected to the lifting assembly.

[0080] A pair of first sprockets 883 are rotatably mounted at both ends of the lifting frame 881; a second sprocket 884 and a third sprocket 885 are rotatably mounted in the middle of the lifting frame 881, with the second sprocket 884 sleeved on the rotating shaft 82; the pair of first sprockets 883, the second sprocket 884, and the third sprocket 885 are located on the same plane; the conveyor chain 882 is sleeved on the pair of first sprockets 883 and the second sprocket 884, and abuts against the third sprocket 885, ensuring the smooth rotation of the conveyor chain 882 when the rotating shaft 82 rotates; the rotation of the rotating shaft 82 drives the second sprocket 884 to rotate, thereby driving the conveyor chain 882, the third sprocket 885, and the pair of first sprockets 883 to rotate, thus realizing the smooth conveying of the pallet 3.

[0081] In operation, the first roller conveyor 1 conveys pallet 3, which, after being limited by the limiting mechanism, enters the area above the conveying assembly. The lifting assembly lifts pallet 3, causing it to detach from the first roller conveyor 1. Machines at other workstations then grab the cardboard boxes 4 transported by pallet 3. After grabbing, the drive motor 81 drives the rotating shaft 82 to rotate, which in turn drives the conveyor chain 882 to transport pallet 3 to the second roller conveyor 2. The second roller conveyor 2 then transports pallet 3 to the stacking mechanism. The lifting cylinder 73 drives the clamping rod 78 to descend, and the cylinder 76 then drives the clamping rod 78 to approach pallet 3. The pallet 3 is gripped and supported by the clamping rod 78 and the lifting plate 79 on the clamping rod 78. The lifting cylinder 73 then drives the clamping rod 78 to rise to the height of one pallet 3, waiting for the next pallet 3. After the next pallet 3 moves to the stacking mechanism, the lifting cylinder 73 drives the clamping rod 78 to descend again, placing the gripped pallet 3 on the next pallet 3. Then the next pallet 3 is gripped and lifted. This cycle is repeated to realize the automated stacking of pallets 3. After stacking to the specified height, the stacked pallets 3 are removed by external devices or manually.

[0082] Above, refer to Figures 1-5 The present invention describes a pallet unloading device according to an embodiment of the present invention, which can realize automated unloading and stacking of pallets, with high efficiency, low labor cost, significantly reduced labor intensity of workers, and good safety.

[0083] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0084] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A pallet unloading device, characterized in that, Includes: a first roller conveyor, a limiting mechanism, a turning mechanism, a second roller conveyor, and a stacking mechanism; A pallet is placed on the first roller conveyor, and the first roller conveyor transports the pallet to the steering mechanism; The limiting mechanism is disposed on both sides of the first roller conveyor, and the limiting mechanism limits the movement path of the pallet; The steering mechanism is located at the bottom of the first roller conveyor and is connected to the second roller conveyor. The steering mechanism drives the pallet to move from the first roller conveyor to the second roller conveyor. The stacking mechanism is located on one side of the second roller conveyor. The stacking mechanism clamps and lifts the pallets on the second roller conveyor to drive the pallets to be stacked layer by layer.

2. The pallet unloading device as described in claim 1, characterized in that, The conveying direction of the second roller conveyor is perpendicular to the conveying direction of the first roller conveyor.

3. The pallet unloading device as described in claim 1, characterized in that, The limiting mechanism includes: a first positioning plate, a second positioning plate, several connecting rods, and a push cylinder; One end of each of the plurality of connecting rods is fixed to one side of the first roller conveyor, and the plurality of connecting rods are parallel to each other; The first positioning plate is fixed to the other end of the plurality of connecting rods; The push cylinder is fixed on the other side of the first roller conveyor. The output end of the push cylinder is connected to the second positioning plate. The push cylinder drives the second positioning plate to move closer to or away from the first positioning plate. The second positioning plate and the first positioning plate together define the movement path of the pallet.

4. The pallet unloading device as described in claim 3, characterized in that, The limiting mechanism further includes: a pair of first guide shafts and a pair of first sliding bearings; The pair of first sliding bearings are fixed on the other side of the first roller conveyor and are respectively sleeved on the pair of first guide shafts; One end of the pair of first guide shafts is connected to the second positioning plate, and the length direction of the first guide shaft is parallel to the pushing direction of the pushing cylinder.

5. The pallet unloading device as described in claim 1, characterized in that, The stacking mechanism includes: a fixing frame, a mounting plate, a pair of clamping components, a lifting cylinder, and a first guide rail; The fixing frame is disposed on one side of the second roller conveyor; The lifting cylinder and the first guide rail are vertically fixed on the fixed frame; The mounting plate is slidably mounted on the first guide rail and is connected to the output end of the lifting cylinder. The pair of gripping components are respectively disposed at both ends of the mounting plate, and the pair of gripping components grip the tray; The lifting cylinder drives the mounting plate to rise and fall.

6. The pallet unloading device as described in claim 5, characterized in that, The clamping assembly includes: a second guide rail, a cylinder, a sliding plate, and a clamping rod; The second guide rail and the cylinder are fixed to the mounting plate; The slide plate is slidably mounted on the second guide rail and is connected to the output end of the cylinder; The clamp is fixed to the slide plate; The cylinder drives the slide plate to move along the second guide rail, causing the clamping rod to move closer to or away from the tray.

7. The pallet unloading device as described in claim 6, characterized in that, Several lifting plates are also fixed on the clamping rod. The lifting plates are inserted into the bottom of the tray, and the lifting plates move up and down to drive the tray to move up and down.

8. The pallet unloading device as described in claim 1, characterized in that, The steering mechanism includes: a lifting assembly, a drive motor, a rotating shaft, and several conveying assemblies; The plurality of conveying components are disposed at the bottom of the first roller conveyor, the conveying components are disposed at the roller gap of the first roller conveyor, and the conveying direction of the conveying components is the same as the conveying direction of the second roller conveyor; The drive motor is fixed on one of the conveying components, and the output end of the drive motor is connected to the rotating shaft to drive the rotating shaft to rotate. The rotating shaft passes through and is connected to the plurality of conveying components. The rotation of the rotating shaft drives the plurality of conveying components to convey the pallet. The lifting component is located at the bottom of the plurality of conveying components and is connected to the plurality of conveying components, driving the plurality of conveying components to rise and fall.

9. The pallet unloading device as described in claim 8, characterized in that, The lifting assembly includes: a lifting cylinder, a lifting rod, a base plate, a pair of second guide shafts, and a pair of second sliding bearings; The base plate is disposed at the bottom of the plurality of conveying components; The pair of second guide shafts are respectively fixed at both ends of the base plate; The pair of second sliding bearings are respectively sleeved on the pair of second guide shafts, and the pair of second sliding bearings are respectively fixed on the corresponding conveying components; The lifting rod is fixed to the plurality of conveying components; The lifting cylinder is fixed on the base plate, and the output end of the lifting cylinder is connected to the lifting rod, driving the lifting rod and the plurality of conveying components to rise and fall.

10. The pallet unloading device as described in claim 8 or 9, characterized in that, The conveying assembly includes: a lifting frame, a conveying chain, a pair of first sprockets, a second sprocket, and a third sprocket; The bottom of the lifting frame is connected to the lifting assembly; The pair of first sprockets are respectively rotatably mounted at both ends of the lifting frame; The second sprocket and the third sprocket are rotatably disposed in the middle of the lifting frame, and the second sprocket is sleeved on the rotating shaft; The pair of first sprockets, second sprockets, and third sprockets are located in the same plane; The conveyor chain is sleeved on the pair of first sprockets and second sprockets, and abuts against the third sprocket; The rotation of the rotating shaft drives the second sprocket to rotate, thereby driving the conveyor chain, the third sprocket, and the pair of first sprockets to rotate.

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