High-efficiency stacking machine

Abstract

The invention discloses a high-efficiency stacking machine which comprises a sky rail, a ground rail, a goods taking mechanism located between the sky rail and the ground rail, a first stacking mechanism located on the sky rail and a second stacking mechanism located on the ground rail. The first stacking mechanism comprises a set of first stand columns, a first cargo carrying frame is connected between the two first stand columns through a lifting assembly, the first stacking mechanism comprises a set of second stand columns, a second cargo carrying frame is connected between the two second stand columns through a lifting assembly, and the second stacking mechanism comprises a set of third stand columns. A third cargo carrying frame is connected between the two third stand columns through a lifting assembly. According to the stereoscopic warehouse, the goods taking mechanism, the first stacking mechanism and the second stacking mechanism are arranged, the goods taking mechanism, the first stacking mechanism and the second stacking mechanism are matched with one another, efficient operation can be achieved, the layout of the stereoscopic warehouse does not need to be changed, and it is guaranteed that the storage capacity of the warehouse is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of stackers, and in particular to a high-efficiency stacker. Background Art

[0002] As the modern logistics industry evolves toward intelligent and efficient processes, automated high-bay warehouses (AHWs) have become a mainstream solution for warehouse management. As the core equipment in a high-bay warehouse, the operating efficiency of a stacker crane directly impacts the throughput capacity of the entire storage system. Traditional single-fork stacker cranes utilize a single actuator to perform the three-dimensional movement of cargo (horizontal travel, vertical lift, and fork extension and retraction). While this design is simple, it presents significant efficiency bottlenecks in practical applications. This is particularly true in applications such as e-commerce logistics and smart manufacturing, where warehousing efficiency is paramount. A single-fork stacker crane often becomes a critical factor limiting the overall efficiency of the system.

[0003] To solve this problem, the industry has proposed a variety of technical improvement solutions. For example, the Chinese patent with publication number CN120156799A discloses a double-station stacker and its control method. This technology sets a stacking module including two stacking units on the track module, so that the two stacking units can flexibly flow at different positions of the track module according to work requirements. Although this design can theoretically improve work efficiency, it has significant defects in actual application: in order to achieve the simultaneous operation of two stacking units, pick-up points and unloading points must be set on both sides of the shelf. This requirement is inconsistent with the trend of modern high-rise warehouses to pursue high space utilization, resulting in a significant reduction in the effective storage area of ​​the warehouse. According to statistics from actual engineering cases, the storage density of warehouses using this design is usually reduced by 20%-30%.

[0004] In addition, existing stacker crane technology still has the following technical pain points:

[0005] For example, the accuracy of cargo transfer is insufficient: traditional stackers lack an effective positioning compensation mechanism when docking with forks, which can easily cause cargo to shift or fall; the equipment is unstable: under long-term high-load operation, key components (such as lifting mechanisms and walking mechanisms) are prone to wear and deformation; maintenance costs remain high: the complex mechanical structure and frequent maintenance needs increase operating costs; the adaptability is poor: it is difficult to adapt to the operational requirements of shelves of different specifications and lacks flexibility.

[0006] These issues severely restrict the widespread application of stacker cranes in modern intelligent warehousing systems. Therefore, developing a new, efficient stacker crane that can maintain existing warehouse layouts while significantly improving operational efficiency has become a pressing technical challenge for the industry. An ideal solution should achieve breakthroughs in the following areas: maintaining or improving existing warehouse space utilization, significantly improving operational efficiency, enhancing equipment stability and reliability, reducing maintenance costs, and exhibiting excellent adaptability. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] Therefore, the object of the present invention is to provide a high-efficiency stacker, comprising a ceiling rail and a floor rail, a picking mechanism located between the ceiling rail and the floor rail, a first stacking mechanism located on the ceiling rail, and a second stacking mechanism located on the floor rail.

[0009] The cargo picking mechanism includes a group of first columns, a first cargo frame is connected between two of the first columns through a lifting assembly, a group of first guide cross bars are welded on the inner wall of the first cargo frame, and a first cargo fork is sleeved on the first guide cross bars.

[0010] The first stacking mechanism includes a group of second columns, and a second cargo frame is connected between two of the second columns via a lifting assembly.

[0011] The second stacking mechanism includes a group of third columns, and a third cargo frame is connected between two of the third columns via a lifting assembly.

[0012] A set of second guide cross bars is welded and fixed on the inner walls of the second cargo frame and the third cargo frame, and a second cargo fork is sleeved on the second guide cross bars.

[0013] The top ends of the first and second columns are connected to the walking assembly via a rotating assembly, and the bottom ends of the first and third columns are connected to the walking assembly via a rotating assembly. The walking assembly is slidably connected to the ceiling rail and the ground rail.

[0014] As the preferred technical solution:

[0015] As described above, a high-efficiency stacker, the lifting assembly includes a screw located in the first column, the second column and the third column, a movable frame sleeved on the first column, the second column and the third column, and a fixed seat welded and fixed to the bottom end of the first column, the bottom end of the second column and the top end of the third column.

[0016] The inner wall of one side of the movable frame is protruded to form a bump, the screw passes through the bump and is connected to the bump through a ball screw nut pair, and the other three side walls of the movable frame are provided with through grooves, and sliding wheels are arranged in the through grooves.

[0017] Through the above technical solution, the inner side of the movable frame does not contact the outer walls of the first column, the second column and the third column, and the three sliding wheels on the movable frame can roll on the outer walls of the first column, the second column and the third column, so that the movable frame moves vertically.

[0018] As described above, a high-efficiency stacker, the fixed seat is a hollow structure, a first servo motor is fixed on one side of the fixed seat, one end of the screw rod passes through the fixed seat and extends into the interior of the fixed seat, the screw rod is movably connected to the fixed seat bearing, a transmission rod is provided inside the fixed seat, the end of the screw rod located inside the fixed seat and the transmission rod are both fixed with meshing bevel gears by a pin, and one end of the transmission rod passes through the fixed seat and is connected to the output shaft of the first servo motor.

[0019] Through the above technical solution, the hollow design of the fixing seat allows the transmission rod to rotate axially therein, and the bevel gear can be meshed and driven therein, so that the transmission rod can transmit power to the screw rod.

[0020] As described above, in a high-efficiency stacker, the first column, the second column and the third column are all hollow structures, and a second opening groove for the protrusion to penetrate is opened on one side of the first column, the second column and the third column, and the side walls of the first cargo frame, the second cargo frame and the third cargo frame are all welded and fixed with movable frames.

[0021] Through the above technical solution, the second opening slot is long and has a certain length, so that the protrusion can move inside the first column, the second column or the third column through the second opening slot, thereby realizing vertical movement of the movable frame.

[0022] As described above, a high-efficiency stacker, the rotating assembly includes a fixed plate and a rotating plate, and a second servo motor fixed to the fixed plate, a rotating shaft is provided at the center of the rotating plate, the rotating shaft passes through the fixed plate and is movably connected to the fixed plate bearing, a ring gear is fixed on the outer circular wall of the rotating plate, and a gear meshing with the ring gear is fixed by a pin on the output shaft of the second servo motor.

[0023] A notch is formed on the outer circle of the rotating plate, an arc-shaped flange is protruded from the outer circle wall of the rotating plate, and a group of symmetrically distributed arc-shaped grooves are opened on the fixed plate, and the flange is slidably embedded in the arc-shaped grooves.

[0024] Through the above technical solution, the gear ring is arc-shaped, and its arc is less than 360° and greater than 180°. This design can prevent the gear ring from blocking the incision, and when the rotating plate rotates 90° clockwise or counterclockwise, the gear ring and the gear can remain in meshing state, and the structure is reasonable.

[0025] In the high-efficiency stacker as described above, the top end of the first column, the top end of the second column and the bottom end of the third column are all welded and fixed to the rotating plate, and the fixing seat at the bottom end of the first column is welded and fixed to the rotating plate.

[0026] Through the above technical solution, the whole is fixed by welding, which can improve the structural strength and firmness, and ensure that the first column, the second column or the third column can rotate and move stably and quickly.

[0027] In the high-efficiency stacker described above, the first fork is hollow and has open ends. A first opening groove is formed on the top wall of the first fork, and the opposite sides of the two first forks are welded and fixed by a first connecting plate.

[0028] The second fork is hollow and has open ends. Opposite sides of the two second forks are welded and fixed by a second connecting plate. The width of the second fork is consistent with the width of the first open slot.

[0029] Through the above technical solution, when the first fork is picking up goods, the structural design of the first fork and the second fork allows the second fork to be inserted into the first fork when they are facing each other, so that the second fork can extend into the pallet from the other side. When the second fork is moved out of the first fork through the first opening slot, the second fork can contact the pallet and lift the pallet, so that the goods are transferred from the first fork to the second fork.

[0030] In the high-efficiency stacker as described above, the travel assembly includes a sliding block that cooperates with the ceiling rail and the floor rail, the sliding block is provided with a group of travel wheels, and the sliding block is welded and fixed to the fixing plate.

[0031] Through the above technical solution, when the sliding block moves on the ceiling rail or the ground rail through the walking wheel, it can drive the fixed plate to move synchronously, and then the fixed plate can drive the first column, the second column or the third column to move through the rotating plate.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] (1) The three mechanisms work together to achieve efficient storage and retrieval. Through the linkage and cooperation of the picking mechanism, the first stacking mechanism, and the second stacking mechanism, a three-dimensional cargo storage and retrieval system is constructed. The picking mechanism is responsible for docking with the picking point, the first stacking mechanism operates independently along the overhead rail to handle the upper shelves, and the second stacking mechanism operates independently along the ground rail to handle the lower shelves. Under the coordinated control of the lifting component, the rotating component, and the walking component, the three form a three-dimensional spatial operation network. This collaborative mechanism breaks through the limitations of the single-line operation of traditional stacking cranes, significantly improves the overall operation efficiency, and is perfectly compatible with the existing warehouse layout.

[0034] (2) The precise linkage of the rotation, lifting, and travel systems innovatively integrates the gear ring drive of the rotation component, the precision control of the ball screw of the lifting component, and the track positioning technology of the travel component. When the pickup mechanism docks with the stacking mechanism, the rotation component achieves precise alignment, the lifting component synchronously adjusts the height, and the travel component accurately positions itself. The three systems ensure the stability and reliability of cargo transfer through coordinated control, significantly surpassing the operating performance of traditional stackers.

[0035] (3) The modular structure synergistically improves system reliability. The modular lifting design of the hollow column and movable frame forms a mechanical complement with the flange-groove guide structure of the rotating component. The sliding wheel of the movable frame shares the radial load during lifting, the flange structure of the rotating plate absorbs torsional stress, and the welded fixed cargo frame ensures overall rigidity. This collaborative design effectively improves the structural stability and service life of the equipment while reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0037] Figure 1 It is a front view of the present invention;

[0038] Figure 2 A perspective view of the present invention;

[0039] Figure 3 A three-dimensional diagram of the first cargo frame and the first cargo fork of the present invention;

[0040] Figure 4 A perspective view of the second cargo frame and the second cargo fork of the present invention;

[0041] Figure 5 It is a three-dimensional diagram of the first column and the movable frame of the present invention;

[0042] Figure 6 A top view of the first column and movable frame of the present invention;

[0043] Figure 7 is a cross-sectional view of the fixing seat of the present invention;

[0044] Figure 8 It is a front view of the rotating plate and the fixed plate of the present invention;

[0045] Figure 9 It is a three-dimensional diagram of the rotating plate and the fixed plate of the present invention.

[0046] In the figure: 1. overhead rail; 2. ground rail; 3. first column; 4. first cargo frame; 5. first fork; 6. first guide cross bar; 7. first connecting plate; 8. second column; 9. second cargo frame; 10. third column; 11. third cargo frame; 12. second fork; 13. second guide cross bar; 14. second connecting plate; 15. movable frame; 16. sliding wheel; 17. bump; 18. screw rod; 19. fixed seat; 20. transmission rod; 21. bevel gear; 22. first servo motor; 23. rotating plate; 24. rotating shaft; 25. ring gear; 26. flange; 27. fixed plate; 28. second servo motor; 29. ​​gear; 30. arc groove; 31. sliding block; 32. walking wheel; 33. first opening slot; 34. second opening slot; 35. incision. DETAILED DESCRIPTION

[0047] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0049] like Figures 1-4 As shown, an embodiment of the present invention discloses a high-efficiency stacker, including a ceiling rail 1 and a floor rail 2, a picking mechanism located between the ceiling rail 1 and the floor rail 2, a first stacking mechanism located on the ceiling rail 1, and a second stacking mechanism located on the floor rail 2.

[0050] The cargo picking mechanism includes a group of first columns 3, a first cargo frame 4 is connected between the two first columns 3 through a lifting assembly, a group of first guide cross bars 6 are welded on the inner wall of the first cargo frame 4, and a first cargo fork 5 is sleeved on the first guide cross bars 6.

[0051] The first stacking mechanism includes a set of second columns 8 , and a second cargo frame 9 is connected between two second columns 8 via a lifting assembly.

[0052] The second stacking mechanism includes a set of third columns 10 , and a third cargo frame 11 is connected between two third columns 10 via a lifting assembly.

[0053] A set of second guide cross bars 13 are welded and fixed to the inner walls of the second cargo frame 9 and the third cargo frame 11 , and a second cargo fork 12 is sleeved on the second guide cross bars 13 .

[0054] The top ends of the first column 3 and the second column 8 are connected to the walking assembly through a rotating assembly, and the bottom ends of the first column 3 and the third column 10 are connected to the walking assembly through a rotating assembly. The walking assembly is slidably connected to the ceiling rail 1 and the ground rail 2.

[0055] Specifically, when goods need to be picked up for stacking, the transport vehicle delivers the goods to the designated picking point, and the picking mechanism moves horizontally between the overhead rail 1 and the ground rail 2 through the walking assembly. When it moves to the picking point, the first cargo frame 4 is moved to the specified height through the lifting assembly, and the first cargo fork 5 on the first cargo frame 4 can be forked into the pallet by sliding on the first guide cross bar 6, so that the goods can be forked.

[0056] Then the first stacking mechanism moves on the overhead rail 1. At this time, the first cargo frame 4 and the second cargo frame 9 are moved to the same height by the lifting assembly, and the first cargo frame 4 is rotated 90° clockwise and the second cargo frame 9 is rotated 90° counterclockwise by the rotating assembly. At this time, the first cargo frame 4 and the second cargo frame 9 are opposite to each other, and the first fork 5 transfers the goods to the second fork 12. Then the second cargo frame 9 is rotated 90° clockwise and reset by the rotating assembly, and is moved horizontally on the overhead rail 1 by the walking assembly and vertically by the lifting assembly. The cargo box 11 is moved horizontally and vertically to move the cargo to the designated position of the shelf. The second fork 12 can stack the cargo on the shelf by sliding on the second guide cross bar 13. During this process, the picking mechanism can fork the cargo again. Through the above steps, the picking mechanism can transfer the cargo to the second fork 12 in the third cargo frame 11. The third cargo frame 11 can stack the cargo on the shelf through horizontal and vertical movement. Then the picking mechanism, the first stacking mechanism and the second stacking mechanism cooperate with each other to quickly store the cargo with high operation efficiency.

[0057] In a specific embodiment of the present invention, the lifting assembly includes a screw rod 18 located in the first column 3, the second column 8 and the third column 10, a movable frame 15 sleeved on the first column 3, the second column 8 and the third column 10, and a fixed seat 19 welded and fixed to the bottom end of the first column 3, the bottom end of the second column 8 and the top end of the third column 10.

[0058] A protrusion 17 is formed on the inner wall of one side of the movable frame 15, and a screw rod 18 passes through the protrusion 17 and is connected to the protrusion 17 through a ball screw nut pair. The other three side walls of the movable frame 15 are provided with through grooves, and a sliding wheel 16 is provided in the through groove.

[0059] The fixed seat 19 is a hollow structure. A first servo motor 22 is fixed to one side of the fixed seat 19. One end of the screw rod 18 passes through the fixed seat 19 and extends into the interior of the fixed seat 19. The screw rod 18 is movably connected to the bearing of the fixed seat 19. A transmission rod 20 is provided inside the fixed seat 19. The end of the screw rod 18 located inside the fixed seat 19 and the transmission rod 20 are both fixed with meshing bevel gears 21 by pins. One end of the transmission rod 20 passes through the fixed seat 19 and is connected to the output shaft of the first servo motor 22.

[0060] The first column 3, the second column 8 and the third column 10 are all hollow structures. A second opening groove 34 for the protrusion 17 to penetrate is opened on one side of the first column 3, the second column 8 and the third column 10, and the side walls of the first cargo frame 4, the second cargo frame 9 and the third cargo frame 11 are all welded and fixed with a movable frame 15.

[0061] Specifically, such as Figure 2 、 Figure 5 、 Figure 6 and Figure 7 As shown, the outer walls of the first column 3, the second column 8 and the third column 10 are all in contact with the sliding wheel 16, and then the movable frame 15 can move vertically along the first column 3, the second column 8 and the third column 10 through the sliding wheel 16, and during the movement, the multiple sliding wheels 16 can not only reduce friction and improve the life of the equipment, but also ensure the sliding accuracy.

[0062] The movable frame 15 can adjust the height of the first cargo frame 4, the second cargo frame 9 and the third cargo frame 11 by moving vertically. Therefore, when the height needs to be adjusted, it is only necessary to drive the movable frame 15 to move.

[0063] When the first servo motor 22 is powered on, the first servo motor 22 can drive the transmission rod 20 to rotate axially. The transmission rod 20 can drive the screw rod 18 to rotate axially through the meshing transmission between the bevel gears 21. The screw rod 18 pushes the sliding wheel 16 to move vertically along the first column 3, the second column 8 or the third column 10 through the protrusion 17. The setting of the second open groove 34 allows the protrusion 17 to move in the first column 3, the second column 8 or the third column 10 without hindrance, thereby ensuring the stable operation of the lifting operation.

[0064] In this way, the first servo motor 22 drives the transmission rod 20 to rotate clockwise or counterclockwise, thereby driving the first cargo frame 4, the second cargo frame 9 and the third cargo frame 11 to rise or fall through the movable frame 15.

[0065] The present invention can form a ball screw transmission through a ball screw nut pair to achieve high-precision control. Compared with traditional winches, the lifting accuracy is higher, so that the cargo transfer between the picking mechanism, the first stacking mechanism and the second stacking mechanism can be completed smoothly and stably, ensuring the rapid progress of storage and retrieval operations.

[0066] In a specific embodiment of the present invention, the rotating assembly includes a fixed plate 27 and a rotating plate 23, and a second servo motor 28 fixed on the fixed plate 27. A rotating shaft 24 is provided at the center of the rotating plate 23. The rotating shaft 24 passes through the fixed plate 27 and is movably connected to the bearing of the fixed plate 27. A ring gear 25 is fixed on the outer circular wall of the rotating plate 23, and a gear 29 meshing with the ring gear 25 is fixed by a pin on the output shaft of the second servo motor 28.

[0067] A cutout 35 is formed on the outer circumference of the rotating plate 23 , and an arc-shaped flange 26 is protruded from the outer circumferential wall of the rotating plate 23 . A group of symmetrically distributed arc-shaped grooves 30 are opened on the fixed plate 27 , and the flange 26 is slidably embedded in the arc-shaped grooves 30 .

[0068] In a specific embodiment of the present invention, the top of the first column 3 , the top of the second column 8 and the bottom of the third column 10 are all welded to the rotating plate 23 , and the fixing seat 19 at the bottom end of the first column 3 is welded to the rotating plate 23 .

[0069] Specifically, such as Figure 2 、 Figure 8 and Figure 9 As shown, the rotating plate 23 cooperates with the fixed seat 19 to drive the two first columns 3 to rotate, and the second column 8 and the third column 10 can rotate directly under the drive of the rotating plate 23, thereby realizing the angle adjustment of the first cargo frame 4, the second cargo frame 9 and the third cargo frame 11.

[0070] The rotating plate 23 is a rotating structure on the fixed plate 27 through the rotating shaft 24, and when the rotating plate 23 rotates, the flange 26 thereon can rotate in the arc groove 30. Under the action of the flange 26 and the arc groove 30, the force acting on the rotating plate 23 can be distributed to the flange 26 and the rotating shaft 24, avoiding excessive axial load on the rotating shaft 24 and misalignment with the fixed plate 27, ensuring that the rotating plate 23 can rotate smoothly.

[0071] When the first cargo frame 4 and the second cargo frame 9 or the first cargo frame 4 and the third cargo frame 11 are lifted to the same height by the lifting assembly, the second servo motor 28 is powered on and the second servo motor 28 drives the rotating plate 23 to rotate on the fixed plate 27 through the meshing action of the gear 29 and the ring gear 25. The rotating plate 23 can drive the first cargo frame 4, the second cargo frame 9 or the third cargo frame 11 to rotate through the first column 3, the second column 8 or the third column 10.

[0072] The setting of the cutout 35 ensures that when the first cargo frame 4 and the second cargo frame 9 or the first cargo frame 4 and the third cargo frame 11 are rotated to relative positions, the cutouts 35 on the two rotating plates 23 are also relative to each other, thereby increasing the distance between the two rotating plates 23, making it easier for the first cargo frame 4 and the second cargo frame 9 or the first cargo frame 4 and the third cargo frame 11 to move closer to each other and transfer goods.

[0073] In a specific embodiment of the present invention, the first fork 5 is hollow and has open ends. A first opening groove 33 is formed on the top wall of the first fork 5 , and the opposite sides of the two first forks 5 are welded and fixed by a first connecting plate 7 .

[0074] The second forks 12 are hollow with both ends being open. Opposite sides of the two second forks 12 are welded and fixed via a second connecting plate 14 . The width of the second forks 12 is consistent with the width of the first opening slot 33 .

[0075] Specifically, such as Figure 3 and Figure 4 As shown, the first cargo frame 4 is provided with an electric push rod for pushing the first connecting plate 7 , and the second cargo frame 9 and the third cargo frame 11 are also provided with an electric push rod for pushing the second connecting plate 14 .

[0076] When the first cargo frame 4 and the second cargo frame 9 or the first cargo frame 4 and the third cargo frame 11 are rotated to be relative to each other and gradually approach each other under the drive of the walking assembly, the electric push rod can drive the two first forks 5 to move along the first guide cross bar 6 by pushing the first connecting plate 7, so that the first fork 5 can move the cargo out of the first cargo frame 4.

[0077] At the same time, the electric push rod pushes the second connecting plate 14, which can drive the two second forks 12 to move along the second guide cross bar 13. The second forks 12 can be inserted into the two first forks 5 when moving. At this time, the second cargo frame 9 or the third cargo frame 11 moves upward under the drive of the lifting assembly, and the second fork 12 can move upward along the first opening slot 33 and contact the pallet. In this way, the second fork 12 lifts the cargo, and the first fork 5 is reset and pulled out from the pallet under the drive of the electric push rod, thus completing the cargo transfer operation. The second fork 12 is reset under the drive of the electric push rod and can move the cargo into the second cargo frame 9 or the third cargo frame 11.

[0078] Then, when the lifting assembly and the walking assembly move the second cargo frame 9 or the third cargo frame 11 to the specified position of the shelf, the second fork 12 moves again under the drive of the electric push rod to place the goods on the shelf.

[0079] In a specific embodiment of the present invention, the walking assembly includes a sliding block 31 that cooperates with the ceiling rail 1 and the ground rail 2 . A set of walking wheels 32 is provided on the sliding block 31 . The sliding block 31 is fixed to the fixing plate 27 by welding.

[0080] Specifically, such as Figure 2 and Figure 9 As shown, the sliding block 31 can slide along the ceiling rail 1 or the ground rail 2. The sliding block 31 is also provided with a motor connected to the running wheel 32. The running wheel 32 is driven by the motor to rotate. When the running wheel 32 rolls on the ceiling rail 1 or the ground rail 2, it can push the sliding block 31 to slide.

[0081] In this specification, terms such as "connect," "install," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection or an indirect connection through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0082] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-efficiency stacker, comprising a ceiling rail (1) and a floor rail (2), a pickup mechanism located between the ceiling rail (1) and the floor rail (2), a first stacking mechanism located on the ceiling rail (1), and a second stacking mechanism located on the floor rail (2), characterized in that: The cargo pickup mechanism comprises a set of first upright posts (3), a first cargo frame (4) is connected between two of the first upright posts (3) via a lifting assembly, a set of first guide cross bars (6) is welded to the inner wall of the first cargo frame (4), and a first cargo fork (5) is sleeved on the first guide cross bars (6); The first stacking mechanism comprises a set of second upright posts (8), and a second cargo frame (9) is connected between two of the second upright posts (8) via a lifting assembly; The second stacking mechanism comprises a set of third columns (10), and a third cargo frame (11) is connected between two of the third columns (10) via a lifting assembly; A set of second guide cross bars (13) are welded and fixed on the inner walls of the second cargo frame (9) and the third cargo frame (11), and a second cargo fork (12) is sleeved on the second guide cross bars (13). The top ends of the first column (3) and the second column (8) are connected to a walking assembly via a rotating assembly, and the bottom ends of the first column (3) and the third column (10) are connected to a walking assembly via a rotating assembly. The walking assembly is slidably connected to the ceiling rail (1) and the floor rail (2).

2. A high-efficiency stacker according to claim 1, characterized in that: The lifting assembly includes a screw rod (18) located in the first column (3), the second column (8) and the third column (10), a movable frame (15) sleeved on the first column (3), the second column (8) and the third column (10), and a fixing seat (19) welded and fixed to the bottom end of the first column (3), the bottom end of the second column (8) and the top end of the third column (10); A protrusion (17) is formed on the inner wall of one side of the movable frame (15), and the screw rod (18) passes through the protrusion (17) and is connected to the protrusion (17) through a ball screw nut pair. The other three side walls of the movable frame (15) are provided with through grooves, and a sliding wheel (16) is provided in the through grooves.

3. The high-efficiency stacker according to claim 2, characterized in that: The fixing seat (19) is a hollow structure. A first servo motor (22) is fixed on one side of the fixing seat (19). One end of the screw rod (18) passes through the fixing seat (19) and extends into the inside of the fixing seat (19). The screw rod (18) is movably connected to the bearing of the fixing seat (19). A transmission rod (20) is provided inside the fixing seat (19). The end of the screw rod (18) located inside the fixing seat (19) and the transmission rod (20) are both fixed with meshing bevel gears (21) by means of a pin. One end of the transmission rod (20) passes through the fixing seat (19) and is connected to the output shaft of the first servo motor (22).

4. The high-efficiency stacker according to claim 2, characterized in that: The first column (3), the second column (8) and the third column (10) are all hollow structures. A second opening groove (34) for the protrusion (17) to penetrate is opened on one side of the first column (3), the second column (8) and the third column (10). The side walls of the first cargo frame (4), the second cargo frame (9) and the third cargo frame (11) are all welded and fixed with a movable frame (15).

5. The high-efficiency stacker according to claim 1, characterized in that: The rotating assembly includes a fixed plate (27) and a rotating plate (23), and a second servo motor (28) fixed on the fixed plate (27). A rotating shaft (24) is provided at the center of the rotating plate (23). The rotating shaft (24) passes through the fixed plate (27) and is movably connected to a bearing of the fixed plate (27). A gear ring (25) is fixed on the outer circular wall of the rotating plate (23). A gear (29) meshing with the gear ring (25) is fixed on the output shaft of the second servo motor (28).

6. The high-efficiency stacker according to claim 5, characterized in that: A notch (35) is formed on the outer circle of the rotating plate (23), and an arc-shaped flange (26) is protruded from the outer circle wall of the rotating plate (23). A group of symmetrically distributed arc-shaped grooves (30) are opened on the fixed plate (27), and the flange (26) is slidably embedded in the arc-shaped grooves (30).

7. The high-efficiency stacker according to claim 1, characterized in that: The top end of the first column (3), the top end of the second column (8), and the bottom end of the third column (10) are all welded and fixed to the rotating plate (23), and the fixing seat (19) at the bottom end of the first column (3) is welded and fixed to the rotating plate (23).

8. The high-efficiency stacker according to claim 1, characterized in that: The first fork (5) is hollow and has open ends. A first opening groove (33) is provided on the top wall of the first fork (5). The two opposite sides of the first fork (5) are welded and fixed via a first connecting plate (7).

9. The high-efficiency stacker according to claim 8, characterized in that: The second fork (12) is hollow and has open ends. The two opposite sides of the second forks (12) are welded and fixed via a second connecting plate (14). The width of the second fork (12) is consistent with the width of the first opening slot (33).

10. The high-efficiency stacker according to claim 1, characterized in that: The walking assembly comprises a sliding block (31) matched with the ceiling rail (1) and the floor rail (2); a group of walking wheels (32) are provided on the sliding block (31); and the sliding block (31) is fixed to the fixing plate (27) by welding.

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