Logistics pallet disassembly robot

Abstract

The application discloses a logistics tray disassembling robot, relates to the technical field of logistics tray disassembling, and discloses a logistics tray disassembling robot, which comprises an outer frame, a lifting frame, a lifting plugboard, conveying rollers, a blocking assembly, a guiding assembly and a correcting assembly. When the lifting frame is lowered to a preset position, the guiding assembly first contacts the tray and guides the tray into the blocking assembly, so that the approximate position of the tray is ensured to be correct. Then, the lifting plugboard is extended to lift the stacked tray from the conveying rollers. When the tray is lifted to a preset height, the correcting assembly starts to act and drives the blocking assembly to be further tightened towards the tray, cooperates with the blocking assembly itself, clamps the supporting legs on both sides of the tray, and exerts a correcting force on the skewed supporting legs, so that the risk of jamming and collapse in the subsequent stacking process is avoided, and the stability of the tray in the subsequent use process is further enhanced.

Description

Technical Field

[0001] This invention relates to the field of logistics pallet disassembly technology, specifically a logistics pallet disassembly robot. Background Technology

[0002] Currently, with the rapid development of e-commerce, intelligent manufacturing, and automated warehousing and logistics, pallets, as unitized logistics carriers, play a crucial role in the storage, transportation, and loading / unloading of goods. In automated warehouses, logistics sorting centers, and material storage areas in production workshops, pallet unloading robots are typically used to centrally collect and stack empty pallets and supply them to conveyor lines or AGVs (Automated Guided Vehicles).

[0003] Existing pallets, especially plastic pallets, are prone to deformation when heavy objects are stacked on top of them or when one side is heavily loaded. Specifically, the two legs of the pallet may become slightly misaligned. This can easily lead to misalignment during the pallet's transport to the unloading equipment via the conveyor rollers, causing jamming. When the pallets are stacked to a certain height, the misalignment of some pallets can easily cause the entire pallet to collapse. Furthermore, pallets with slight deformation at the legs are more likely to deteriorate faster in subsequent use, thus increasing costs for businesses.

[0004] To address this, a logistics pallet unloading robot is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a logistics pallet unloading robot to solve the problems in the prior art where pallet deformation leads to inaccurate stacking positioning, jamming, or even collapse, and the subsequent use of deformed pallets accelerates pallet damage and increases enterprise costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a logistics pallet unloading robot, comprising an outer frame, a lifting frame, a lifting plate, a conveying roller, a guard assembly, a guiding assembly, and a corrective assembly; the lifting frame and the outer frame are vertically movable, the lifting plate and the lifting frame are horizontally and telescopically movable, the conveying roller is disposed between the guiding assemblies for receiving and conveying pallets, the guard assembly is disposed inside the lifting frame, the guiding assembly is disposed at the bottom of the guard assembly and is vertically movable with the guard assembly, and the corrective assembly is rotatably connected to the outer frame; the guard assembly is adjustable and telescopic; when the lifting frame descends to a preset position, the guiding assembly guides the pallet between the guard assemblies; after the pallet is stacked and raised to a preset height, the corrective assembly rotates towards the guard assembly, driving the guard assembly to tighten towards the pallet, cooperating with the guard assembly to clamp the support legs on both sides of the pallet.

[0007] Preferably, the guard assembly includes a support sleeve, a telescopic tube, a baffle, and a pull spring; the support sleeve is fixedly connected to the lifting frame, the telescopic tube is slidably connected to the support sleeve, the baffle is fixedly connected to the telescopic tube, and the two ends of the pull spring are fixedly connected to the lifting frame and the baffle, respectively; in the initial state, the pull spring provides preload, so that the telescopic tube and the baffle are in a retracted state, so as to leave enough space for the pallet to enter. When the correction assembly is activated, it will overcome the pull force of the pull spring and push the baffle to extend towards the pallet support leg, thereby clamping and correcting the support leg. When the correction assembly is reset, the pull force of the pull spring will cause the baffle to automatically retract, preparing for the next working cycle.

[0008] Preferably, the top of both sides of the conveying roller is provided with inclined surfaces, and the inclination of the inclined surfaces on both sides is the same. The inclined surfaces are used to support the bottom of the guide component. When the bottom of the guide component descends to the lowest point, its bottom end abuts against the inclined surface and the guide component retracts.

[0009] Preferably, the guiding assembly includes a telescopic rod, a push spring, a movable plate, an arc-shaped guide plate, a fixed rod, a sliding sleeve, a hinge rod, and a compression spring; the telescopic rod is slidably connected to the bottom of the baffle, the two ends of the push spring are fixedly connected to the top of the telescopic rod and the bottom of the extension protrusion on the baffle, respectively, the movable plate is fixedly connected to the bottom of the telescopic rod, the arc-shaped guide plate is rotatably connected to the bottom end of the movable plate, the fixed rod is fixedly connected to the side of the telescopic rod near the lifting frame, the sliding sleeve is slidably connected to the fixed rod, the hinge rod is hinged between the arc-shaped guide plate and the sliding sleeve, and the compression spring is sleeved on the outside of the fixed rod. Both ends are fixedly connected to the sliding sleeve and the end of the fixed rod, respectively. When the lifting frame descends, the arc-shaped guide plate first contacts the edge of the pallet. If the pallet is not in the correct position, the arc-shaped surface of the arc-shaped guide plate will gradually guide the pallet into the space between the baffles. During the descent of the lifting frame, the arc-shaped guide plate will follow the descent to the bottom and will abut against the inclined surface. Then, the arc-shaped guide plate will deflect due to the force. After deflection, it will push the sliding sleeve to compress the compression spring through the hinge rod until it deflects to the maximum limit. The telescopic rod can no longer descend and will overcome the spring force to retract. The moving plate gradually moves closer to the baffle and fits. At this time, the lifting plate also reaches the lifting position of the pallet.

[0010] Preferably, the top cross-section of the movable plate is consistent with the shape of the baffle, and the bottom of the movable plate is inclined on the side near the pallet. This inclined surface forms a larger guide slope, which can more efficiently guide the edge of the pallet or the support legs to the inside of the movable plate, ensuring that the pallet is smoothly guided into the working area of ​​the baffle assembly and preventing the pallet from getting stuck with the movable plate.

[0011] Preferably, the correction assembly includes a rotating rod, a correction plate, a sector gear, a double-headed worm gear, a motor, and a transmission component; the rotating rod has four sets, with two sets on each side rotatably connected to the outer frame; the tray is located between the rotating rod and the baffle; the correction plate is fixedly connected to the rotating rod; multiple sets of correction plates are equidistantly arranged on the rotating rod; the sector gear is fixedly connected to the top of the rotating rod; the double-headed worm gear is rotatably connected to the top of the outer frame; the two ends of the double-headed worm gear are symmetrically arranged; and the sector gears are located on both sides of the double-headed worm gear and mesh with it. The system is configured such that the motor is fixedly connected to the outer frame, the motor output shaft is fixedly connected to the double-headed worm gear, and the transmission component is fixedly connected to the outer frame. During operation, when the entire pallet is lifted to a preset height, the motor drives the double-headed worm gear to rotate, thereby driving the rotating rods on both sides to swing inward synchronously. When the rotating rods swing inward, on the one hand, the correction plate on it will directly contact and press and push the pallet legs on both sides of the pallet; on the other hand, the transmission component will push the baffle to move towards the pallet. The two work together to form a powerful clamping and correction on the pallet legs from both sides.

[0012] Preferably, the correction plate is arranged perpendicularly to the center of the rotating rod, and the thickness of the correction plate is less than the diameter of the rotating rod. This design allows the thinner plate to pass through the pallet when it rotates out of the pallet, thus avoiding unnecessary collisions with the pallet.

[0013] Preferably, the transmission component includes a support rod, a swing notch, a transmission rod, and a drive rod; the support rod is fixedly connected to the outer frame, the swing notch is formed on the support rod, the transmission rod is rotatably connected to the swing notch, the transmission rod is located at the middle position of the baffle height, the drive rod is fixedly connected to the middle of the rotating rod, and the middle of the rotating rod is rotatably connected to the end of the support rod; when the rotating rod rotates towards the baffle, the drive rod pushes the transmission rod to swing; when the rotating rod rotates towards the baffle, the drive rod fixed to it will swing accordingly and push the transmission rod to swing, and the other end of the transmission rod directly pushes the baffle, causing the baffle to overcome the tension of the pull spring and move towards the tray.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a correction component that works in conjunction with an adjustable and retractable retaining component. After the lifting frame raises the pallets to a preset height, the motor drives a double-headed worm gear to rotate the sector gears on both sides inwards synchronously. This causes the correction plate on the rotating rod to swing inwards, while simultaneously, the transmission component pushes the retaining plate of the retaining component to tighten towards the pallet. The correction plate and the retaining plate together clamp the pallet legs from both sides, applying an active corrective force to the legs that have become misaligned due to long-term use, and performing continuous reciprocating clamping and correction during the stacking of multiple pallets. This design eliminates the impact of pallet deformation on the stacking accuracy at its source, avoiding jamming during stacking.

[0015] 2. During the descent of the lifting frame, this invention utilizes the arc-shaped guide plate at the bottom of the guide assembly, which engages with the inclined surfaces on both sides of the conveyor rollers. The arc-shaped guide plate guides pallets with positional deviations flexibly into the space between the guard components, preventing rigid collisions that could damage the pallets. After each stacking and lifting operation, the clamping action of the correction component further corrects the pallet position, ensuring neat stacking between upper and lower pallets. Furthermore, the guard components continuously provide limiting during stacking. When the maximum number of pallets is reached, the correction plate and guard plate maintain a continuous clamping state on the entire stack for an extended period, significantly enhancing the correction effect on the pallet legs and improving the overall stability of the pallet stack.

[0016] 3. In the pallet stacking and recycling process, this invention promptly corrects slightly deformed pallet legs, preventing deformed pallets from being reused without correction. If deformed pallets continue to circulate without treatment, they are prone to accelerated damage when stacked with heavy objects or under uneven loads. Through the robot's active gripping and pressure-holding correction during the stacking process, the pallet legs are restored to their correct positions, ensuring not only the stability of pallet stacking but also significantly extending the overall lifespan of the pallets, reducing the frequency of pallet replacement and procurement costs, thereby reducing long-term operating costs for enterprises. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the internal structure of the outer frame of the present invention; Figure 3 This is a schematic diagram of the protective assembly structure of the present invention; Figure 4 This is a schematic diagram of the guiding component structure of the present invention; Figure 5 This is a side view of the guide component of the present invention; Figure 6 This is a schematic diagram of the lifting frame of the present invention descending to its maximum extent. Figure 7 This is a schematic diagram of the correction component structure of the present invention; Figure 8 This is a schematic diagram of the transmission component structure of the present invention; Figure 9 This is a schematic diagram of the structure of the transmission rod and drive rod of the present invention.

[0018] In the diagram: 1. Outer frame; 2. Lifting frame; 3. Lifting insert plate; 4. Conveyor roller; 41. Inclined surface; 5. Guard assembly; 51. Support sleeve; 52. Telescopic tube; 53. Baffle; 54. Pulling spring; 6. Guide assembly; 61. Telescopic rod; 62. Push spring; 63. Moving plate; 64. Arc guide plate; 65. Fixed rod; 66. Sliding sleeve; 67. Hinge rod; 68. Compression spring; 7. Correction assembly; 71. Rotating rod; 72. Correction plate; 73. Sector gear; 74. Double-ended worm gear; 75. Motor; 76. Transmission component; 761. Support rod; 762. Swing notch; 763. Transmission rod; 764. Drive rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 9 This invention provides a logistics pallet unloading robot, the technical solution of which is as follows: Reference Figure 1 and Figure 2 A pallet unloading robot is disclosed. The robot includes an outer frame 1, a lifting frame 2, a lifting insert 3, a conveyor roller 4, a guard assembly 5, a guide assembly 6, and a correction assembly 7. The lifting frame 2 is connected to the output chain of a drive motor at the top of the outer frame 1. The drive motor drives the lifting frame 2 to move up and down along the outer frame 1 via the chain. Specifically, the lifting frame 2 is slidably connected to the outer frame 1 and can move up and down under the guidance of the outer frame 1. The lifting insert 3 is telescopically connected to the lifting frame 2 and is used to insert into and lift the pallet from the bottom. The conveyor roller... 4 is positioned directly below the lifting frame 2 and is used to transport the pallets to be disassembled, including deformed pallets, to the work station; the guard assembly 5 is positioned inside the lifting frame 2 and is used to initially limit and finally clamp the pallets during the stacking process; the guide assembly 6 is positioned at the bottom of the guard assembly 5 and is slidably connected to the guard assembly 5, and is used to accurately guide the pallets on the conveyor roller 4 into the space between the guard assemblies 5 when the lifting frame 2 descends; the correction assembly 7 is rotatably connected to the outer frame 1 and is used to actively drive the guard assembly 5 to tighten towards the pallet after the pallet is lifted; The guardrail assembly 5 is adjustable and telescopic. The entire robot's workflow is as follows: When the lifting frame 2 descends to the preset position, the guide assembly 6 first contacts the pallet and guides it between the guardrail assemblies 5, ensuring the pallet's approximate position is correct. Subsequently, the lifting plate 3 extends, stacking and lifting the pallet from the conveyor roller 4. After the pallet is stacked and lifted to the preset height, the correction assembly 7 begins to move, rotating towards the guardrail assembly 5, thereby driving the guardrail assembly 5 to further tighten towards the pallet. Working together with the guardrail assembly 5 itself, it clamps the support legs on both sides of the pallet. This process not only completes the pallet stacking, but more importantly, through active clamping, it applies a corrective force to the skewed support legs, restoring them to the correct position under long-term pressure after the pallet is stacked. This avoids the risk of jamming and collapse during subsequent stacking processes and further enhances the stability of the pallet during use after stacking. Moreover, the guardrail assembly 5 significantly enhances the stability of the pallet after stacking.

[0021] Reference Figure 3 The guard assembly 5 includes a support sleeve 51, a telescopic tube 52, a baffle 53, and a pull spring 54. The support sleeve 51 is fixedly connected to the lifting frame 2, the telescopic tube 52 is slidably connected to the support sleeve 51, the baffle 53 is fixedly connected to the telescopic tube 52, and the two ends of the pull spring 54 are fixedly connected to the lifting frame 2 and the baffle 53, respectively. In the initial state, the pull spring 54 provides a preload force, so that the telescopic tube 52 and the baffle 53 are in a retracted state, so as to leave enough space for the pallet to enter. When the correction assembly 7 is activated, it will overcome the pull force of the pull spring 54 and push the baffle 53 to extend towards the pallet support leg, thereby clamping and correcting the support leg. When the correction assembly 7 is reset, the pull force of the pull spring 54 will cause the baffle 53 to automatically retract, preparing for the next working cycle.

[0022] Reference Figure 1 The top of both sides of the conveyor roller 4 is also provided with inclined surfaces 41, and the inclination of the inclined surfaces 41 on both sides is the same. The inclined surfaces 41 are used to support the bottom of the guide component 6. When the bottom of the guide component 6 descends to the bottommost point, the bottommost point abuts against the inclined surfaces 41 and the guide component 6 retracts.

[0023] Reference Figures 4 to 6The guide assembly 6 includes a telescopic rod 61, a push spring 62, a movable plate 63, an arc-shaped guide plate 64, a fixed rod 65, a sliding sleeve 66, a hinge rod 67, and a compression spring 68. The telescopic rod 61 is slidably connected to the bottom of the baffle 53. The two ends of the push spring 62 are fixedly connected to the top of the telescopic rod 61 and the bottom of the extension protrusion on the baffle 53, respectively. The movable plate 63 is fixedly connected to the bottom of the telescopic rod 61. The arc-shaped guide plate 64 is rotatably connected to the bottom end of the movable plate 63. The fixed rod 65 is fixedly connected to the side of the telescopic rod 61 near the lifting frame 2. The sliding sleeve 66 is slidably connected to the fixed rod 65. The hinge rod 67 is hinged between the arc-shaped guide plate 64 and the sliding sleeve 66. The compression spring 68 is sleeved on the outside of the fixed rod 65, and the two ends of the compression spring 68 are fixedly connected to the sliding sleeve 66 and the end of the fixed rod 65, respectively. When the lifting frame 2 descends, the arc-shaped guide plate 64 first contacts the bottom of the baffle 53. If the pallet is not positioned correctly, the curved surface of the arc-shaped guide plate 64 will gradually guide the pallet into the space between the baffles 53. During the descent of the lifting frame 2, the arc-shaped guide plate 64 will descend to the bottom and abut against the inclined surface 41. Then, the arc-shaped guide plate 64 will deflect due to the force. After deflection, it will push the sliding sleeve 66 to compress the compression spring 68 through the hinge rod 67. After deflection to the maximum limit, the telescopic rod 61 can no longer descend and will retract against the elastic force of the pushing spring 62. The moving plate 63 will gradually move closer to the baffle 53 and fit together. At this time, the lifting plate 3 will also reach the lifting position of the pallet. The sliding sleeve 66 will be pushed by the hinge rod 67 to compress the compression spring 68. This linkage design allows the arc-shaped guide plate 64 to fit the edge of the pallet in a relatively flexible manner and guide it to the correct position, which can effectively avoid damage to the pallet caused by rigid collision.

[0024] Reference Figure 4 and Figure 5 The top cross-section of the movable plate 63 is consistent with the shape of the baffle 53, ensuring structural continuity. The bottom of the movable plate 63 is inclined on the side near the pallet. This inclined surface 41 forms a larger guide slope, which can more efficiently guide the edge of the pallet or the support legs to the inside of the movable plate 63, ensuring that the pallet is smoothly guided into the working area of ​​the guard assembly 5 and preventing the pallet from getting stuck with the movable plate 63.

[0025] Reference Figures 7 to 9The correction assembly 7 includes a rotating rod 71, a correction plate 72, a sector gear 73, a double-headed worm gear 74, a motor 75, and a transmission component 76. The rotating rod 71 has four sets, with two sets on each side rotatably connected to the outer frame 1. The tray is located between the rotating rod 71 and the baffle 53. The correction plate 72 is fixedly connected to the rotating rod 71, and multiple sets of the correction plate 72 are equidistantly arranged on the rotating rod 71. The sector gear 73 is fixedly connected to the top of the rotating rod 71. The double-headed worm gear 74 is rotatably connected to the top of the outer frame 1. The worm gears at both ends of the rod 74 are symmetrically arranged. Sector gears 73 are located on both sides of the double-headed worm gear 74 and mesh with it. The motor 75 is fixedly connected to the outer frame 1, and the output shaft of the motor 75 is fixedly connected to the double-headed worm gear 74. The transmission component 76 is fixedly connected to the outer frame 1. During operation, when the entire pallet is lifted to a preset height, the motor 75 drives the double-headed worm gear 74 to rotate. Because the threads at both ends of the double-headed worm gear 74 rotate in opposite directions, they drive the sector gears 73 on both sides to rotate synchronously inward, thereby driving... The rotating rods 71 ​​on both sides swing inward synchronously. When the rotating rods 71 ​​swing inward, on the one hand, the correction plate 72 on them will directly contact and squeeze the pallet legs on both sides of the pallet. On the other hand, the transmission component 76 will push the baffle 53 to move towards the pallet. The two work together to form a strong clamping and correction on the pallet legs from both sides. When the lifting frame 2 descends, the motor 75 will drive the double-headed worm gear 74 to reverse, thereby driving the rotating rods 71 ​​to rotate outward synchronously, so that the correction plate 72 leaves the inside of the pallet, ensuring that the lifting frame 2 and the pallet can descend smoothly as a whole. At the same time, the above clamping action on the pallet will be repeated once for each pallet stacking. This can effectively correct the deformation of the pallet after each stacking and also correct its position, so that the upper and lower pallets are stacked neatly. When the equipment reaches the maximum pallet stacking amount, the pallet collection operation is completed. Then the correction plate 72 and the baffle 53 can maintain pressure on the pallet for a long time, thereby effectively correcting the deformation at the pallet legs.

[0026] Reference Figure 7 The correction plate 72 is set perpendicular to the center of the rotating rod 71, and the thickness of the correction plate 72 is less than the diameter of the rotating rod 71. This design allows the thinner thickness of the correction plate 72 to facilitate the passage of the pallet when it rotates out of the pallet, avoiding unnecessary collisions with the pallet.

[0027] Reference Figure 8 and Figure 9The transmission component 76 includes a support rod 761, a swing notch 762, a transmission rod 763, and a drive rod 764. The support rod 761 is fixedly connected to the outer frame 1. The swing notch 762 is formed on the support rod 761. The transmission rod 763 is rotatably connected to the swing notch 762. The transmission rod 763 is located at the middle position of the height of the baffle 53. The drive rod 764 is fixedly connected to the middle part of the rotating rod 71. The middle part of the rotating rod 71 is rotatably connected to the end of the support rod 761. When the rotating rod 71 rotates towards the baffle 53, the drive rod 764 pushes the transmission rod 763 to swing. When the rotating rod 71 rotates towards the baffle 53, the drive rod 764 fixed to it will swing accordingly and push the transmission rod 763 to swing. The other end of the transmission rod 763 directly pushes the baffle 53, causing the baffle 53 to move towards the tray direction against the tension of the pull spring 54. The transmission component 76 has a simple and compact structure, which efficiently converts the rotational motion of the rotating rod 71 into the linear motion of the baffle 53, realizing the synchronous and reliable clamping and correction of the pallet support legs by the correction plate 72 and the baffle 53.

[0028] Working principle: Preparation and Pallet Introduction Stage: The conveyor roller 4 first transports the pallets to be disassembled (including deformed pallets) to the work station directly below the lifting frame 2. Subsequently, the lifting frame 2 begins to descend under the guidance of the outer frame 1. During the descent, the arc-shaped guide plate 64 at the bottom of the guide assembly 6 first contacts the edge of the pallet. If there is a deviation in the pallet position, the arc-shaped surface of the arc-shaped guide plate 64 will guide the pallet to gradually enter the area between the two side guard assemblies 5. When the lifting frame 2 descends to the lowest position, the bottom of the arc-shaped guide plate 64 abuts against the inclined surfaces 41 on both sides of the conveyor roller 4. The arc-shaped guide plate 64 is deflected by the force of the compression spring 68 until it deflects to the maximum limit. Then, the telescopic rod 61 can no longer descend and retracts against the elastic force of the push spring 62. Finally, the moving plate 63 fits against the baffle 53. At this time, the pallet is accurately guided between the guard assemblies 5, and the lifting insert 3 also reaches the height where it can be inserted into the bottom of the pallet.

[0029] Stacking and lifting stage: After the pallet is positioned, the lifting plate 3 extends from the lifting frame 2, inserts into the bottom of the pallet, and lifts the pallet off the conveyor roller 4. The lifting frame 2 drives the lifting plate 3 and the pallet to rise together, completing the pallet stacking and lifting action.

[0030] Clamping and Correction Stage: Once the pallet is raised to the preset height, the correction component 7 begins to operate. The motor 75 drives the double-headed worm gear 74 to rotate. Since the threads at both ends of the double-headed worm gear 74 rotate in opposite directions, they drive the sector gears 73 on both sides to rotate synchronously inward, causing the rotating rods 71 ​​on both sides to swing inward. The inward swing of the rotating rods 71 ​​produces two effects: first, the correction plate 72 fixed on the rotating rod 71 directly contacts the support legs on both sides of the pallet, applying an inward compressive force; second, the rotating rod 71 pushes the transmission rod 763 to swing via the drive rod 764 in the transmission component 76. The other end of the transmission rod 763 pushes the baffle 53 of the guard component 5 to overcome the tension of the pull spring 54 and extend towards the pallet. This allows the correction plate 72 and the baffle 53 to clamp the pallet support legs from both sides, applying a corrective force to the skewed support legs, while ensuring the pallet remains aligned and vertically aligned during stacking, preventing tipping.

[0031] Pressure holding and reset stage: During the continuous stacking of multiple pallets, after each stack is completed, the correction plate 72 and the baffle 53 will hold the pallet legs with pressure for a period of time, which helps to eliminate the deformation of the legs and improve the stability and neatness of the stack. When it is necessary to put down the pallet or complete a stacking cycle, the motor 75 drives the double-headed worm gear 74 to reverse, the rotating rod 71 rotates outward, the correction plate 72 leaves the inside of the pallet, and the baffle 53 automatically retracts under the pulling force of the pulling spring 54, leaving room for movement for the next pallet introduction and stacking.

[0032] Cyclic Operation: As the number of stacked pallets increases, the robot repeats the above-described processes of importing, lifting, clamping and correcting, and resetting. When the maximum number of pallets is reached, the equipment completes the collection operation. At this point, the correction plate 72 and the baffle 53 can maintain a continuous clamping state on the entire stack of pallets, providing long-term pressure, effectively correcting the deformation at the pallet legs, and enhancing the stability after stacking. This effectively avoids problems such as jamming, collapse, and accelerated damage caused by pallet deformation during subsequent use.

[0033] It will be apparent 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A logistics pallet unloading robot, characterized in that: The pallet unloading robot includes an outer frame (1), a lifting frame (2), a lifting insert plate (3), a conveying roller (4), a guard assembly (5), a guide assembly (6), and a correction assembly (7). The lifting frame (2) and the outer frame (1) are vertically movable, the lifting plate (3) and the lifting frame (2) are horizontally telescopically movable, the conveying roller (4) is disposed between the guide components (6) for receiving and conveying the pallet, the guard component (5) is disposed inside the lifting frame (2), the guide component (6) is disposed at the bottom of the guard component (5) and is vertically movable with the guard component (5), and the correction component (7) is rotatably connected to the outer frame (1); The guardrail assembly (5) is adjustable and telescopic; when the lifting frame (2) descends to the preset position, the guide assembly (6) guides the tray between the guardrail assemblies (5); After the pallet is stacked and raised to a preset height, the correction component (7) rotates towards the guard component (5) to drive the guard component (5) to tighten towards the pallet, and cooperates with the guard component (5) to clamp the support legs on both sides of the pallet.

2. The logistics pallet unloading robot according to claim 1, characterized in that: The protective assembly (5) includes a support sleeve (51), a telescopic tube (52), a baffle (53), and a pull spring (54); the support sleeve (51) is fixedly connected to the lifting frame (2), the telescopic tube (52) is slidably connected to the support sleeve (51), the baffle (53) is fixedly connected to the telescopic tube (52), and the two ends of the pull spring (54) are fixedly connected to the lifting frame (2) and the baffle (53) respectively.

3. A logistics pallet unloading robot according to claim 2, characterized in that: The top of both sides of the conveying roller (4) is also provided with inclined surfaces (41), and the inclination of the inclined surfaces (41) on both sides is the same.

4. A logistics pallet unloading robot according to claim 3, characterized in that: The guiding assembly (6) includes a telescopic rod (61), a push spring (62), a moving plate (63), an arc-shaped guide plate (64), a fixed rod (65), a sliding sleeve (66), a hinge rod (67), and a compression spring (68); the telescopic rod (61) is slidably connected to the bottom of the baffle (53), the two ends of the push spring (62) are fixedly connected to the top of the telescopic rod (61) and the bottom of the extension protrusion on the baffle (53) respectively, and the moving plate (63) is fixedly connected to the bottom of the telescopic rod (61). The arc-shaped guide plate (64) is rotatably connected to the bottom end of the moving plate (63), the fixed rod (65) is fixedly connected to the telescopic rod (61) on the side near the lifting frame (2), the sliding sleeve (66) is slidably connected to the fixed rod (65), the hinge rod (67) is hinged between the arc-shaped guide plate (64) and the sliding sleeve (66), the compression spring (68) is sleeved on the outside of the fixed rod (65), and the two ends of the compression spring (68) are fixedly connected to the sliding sleeve (66) and the end of the fixed rod (65) respectively.

5. A logistics pallet unloading robot according to claim 4, characterized in that: The top cross-section of the movable plate (63) is the same as that of the baffle (53), and the bottom of the movable plate (63) is inclined on the side near the tray.

6. A logistics pallet unloading robot according to claim 5, characterized in that: The correction assembly (7) includes a rotating rod (71), a correction plate (72), a sector gear (73), a double-headed worm gear (74), a motor (75), and a transmission component (76). The rotating rod (71) has four sets of four rotating rods, two sets of which are rotatably connected to the outer frame (1) on one side. The tray is located between the rotating rod (71) and the baffle (53). The correction plate (72) is fixedly connected to the rotating rod (71). The correction plate (72) has multiple sets of equidistantly arranged on the rotating rod (71). The fan gear (73) is fixedly connected to the top of the rotating rod (71) and the double-headed worm (74) is rotatably connected to the top of the outer frame (1). The two ends of the double-headed worm (74) are symmetrically arranged. The fan gear (73) is located on both sides of the double-headed worm (74) and meshes with the double-headed worm (74). The motor (75) is fixedly connected to the outer frame (1). The output shaft of the motor (75) is fixedly connected to the double-headed worm (74). The transmission component (76) is fixedly connected to the outer frame (1).

7. A logistics pallet unloading robot according to claim 6, characterized in that: The correction plate (72) is perpendicular to the center of the rotating rod (71), and the thickness of the correction plate (72) is less than the diameter of the rotating rod (71).

8. A logistics pallet unloading robot according to claim 7, characterized in that: The transmission component (76) includes a support rod (761), a swing notch (762), a transmission rod (763), and a drive rod (764); the support rod (761) is fixedly connected to the outer frame (1), the swing notch (762) is opened on the support rod (761), the transmission rod (763) is rotatably connected to the swing notch (762), the transmission rod (763) is located at the middle position of the height of the baffle (53), the drive rod (764) is fixedly connected to the middle part of the rotating rod (71), and the middle part of the rotating rod (71) is rotatably connected to the end of the support rod (761); when the rotating rod (71) rotates towards the baffle (53), the drive rod (764) pushes the transmission rod (763) to swing.

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