Double-portal-frame forklift lifting system for plate sorting, loading and unloading

By designing a double-door forklift lifting system, using components such as the double-door body, the door lifting mechanism and telescopic fork, the boards are quickly and accurately picked and loaded and unloaded, solving the problems of inefficiency of traditional forklifts and cargo damage, and adapting to the needs of high-density storage and automated warehousing systems.

CN120004177APending Publication Date: 2025-05-16BANYITONG SCI & TECH DEVING
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Patent Information

Application Number
CN202510204014.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-05-16

AI Technical Summary

Technical Problem

Traditional forklifts are inefficient, time-consuming and labor-intensive when picking boards, and may increase the risk of cargo damage, making it difficult to adapt to the needs of high-density storage and automated warehousing systems.

Method used

A double-door forklift lifting system is designed, including a double-door body, a side-by-side door lifting mechanism, an integrated cargo fork, upper and lower telescopic forks and material picking suction cups. These components are used to achieve rapid and accurate picking and loading and unloading of the boards.

Benefits of technology

The individual selection of plates is realized without moving the entire stack of goods, which greatly improves the picking efficiency, reduces the risk of cargo damage, and adapts to the needs of high-density storage and automated warehousing systems, improving logistics efficiency and safety.

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Abstract

The invention discloses a double-portal forklift lifting system for plate sorting, loading and unloading, and relates to the technical field of warehouse logistics, the double-portal forklift lifting system comprises a double-portal forklift body, two sets of portal lifting mechanisms distributed side by side are fixedly arranged on the portal lifting mechanisms, and an integrated fork arm carrier is vertically and slidably connected between the two sets of portal lifting mechanisms; an upper telescopic fork capable of stretching out towards the two sides is installed on the upper portion of the integrated fork arm carrier, a material taking suction cup used for sucking plates is installed on the upper telescopic fork, a lower telescopic fork used for storing the plates is installed in the middle of the upper end of the double-portal vehicle body, and the lower telescopic fork can stretch out towards the two sides of the double-portal vehicle body. According to the plate sorting device, plates can be independently selected, the whole stack of goods does not need to be moved, and therefore the sorting efficiency is greatly improved. And the sorted plates can be directly packaged and quickly transported, so that the time is saved, the operation cost is reduced, and the overall logistics efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of warehousing logistics, and in particular to a double-door forklift lifting system for picking and loading and unloading plates. Background Art

[0002] In the current wave of industrial upgrading, the warehousing and logistics industry is facing unprecedented changes and challenges. With the increasing requirements of the manufacturing industry for the efficiency of raw material processing, especially for the storage and handling of large and heavy goods such as panels, traditional operation methods can no longer meet the needs of efficient and accurate operations. As panels are indispensable basic materials for many industries such as construction, furniture, and machinery manufacturing, the efficiency and safety of their picking and loading and unloading processes have become key factors restricting production efficiency.

[0003] When picking plates, traditional forklifts often need to remove the entire stack of goods first, then pick the required plates from the stack, and put the remaining plates back in place after picking. This method is not only cumbersome to operate, but also very easy to cause scratches, deformation and even damage to the surface of the plates during repeated loading and unloading, which not only increases the cost of cargo loss, but also affects the quality of subsequent processing or use. In addition, the whole stack handling method has limitations in space utilization and is difficult to adapt to the needs of high-density storage, further limiting the storage capacity and operating efficiency of the warehouse.

[0004] More importantly, with the development of intelligent and automated technologies, warehousing systems are gradually transforming towards intelligence, requiring logistics equipment to have higher flexibility and precision. Traditional forklifts require frequent manual intervention when picking a single plate, which is not only labor-intensive but also inefficient, making it difficult to match the rapidly developing automated warehousing system.

[0005] In view of this, it is urgent to develop a forklift lifting system that can adapt to high-density storage environments, realize fast and accurate plate picking, and effectively reduce the risk of cargo damage. The system needs to have a high level of automation and intelligence, and can directly pick and load and unload target plates without destroying the overall structure of the plate stack, thereby significantly improving the efficiency and safety of plate handling operations and promoting the development of the warehousing and logistics industry to a higher level. Summary of the invention

[0006] The purpose of the present invention is to provide a double-gantry forklift lifting system for plate picking and loading and unloading, so as to solve the technical problem that traditional forklifts are not only time-consuming and labor-intensive, but also inefficient when picking single plates, and may also increase the risk of cargo damage.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A double-gantry forklift lifting system for plate picking and loading and unloading comprises a double-gantry body, on which are fixedly provided two sets of gantry lifting mechanisms distributed side by side, an integrated fork frame being vertically slidably connected between the two sets of gantry lifting mechanisms, an upper telescopic fork which can be extended to both sides being installed on the upper part of the integrated fork frame, a material picking suction cup for adsorbing the plate being installed on the upper telescopic fork, a lower telescopic fork for storing the plate being installed in the middle part of the upper end of the double-gantry body, and the lower telescopic fork can be extended to both sides of the double-gantry body.

[0009] Preferably, a vacuum pump for providing an air source to the material picking suction cup is fixedly installed on the double-gantry vehicle body.

[0010] Preferably, a telescopic fork controller for controlling the telescopic movement of the upper telescopic fork and the lower telescopic fork is installed on the double-mast vehicle body.

[0011] Preferably, the gantry lifting mechanism includes a gantry body and a chain retractor, a fixed beam is fixedly arranged on the upper part of the gantry body, a plurality of sets of guide sprockets are rotatably mounted on the gantry body, a lifting chain is fixedly connected to the fixed beam, the lifting chain passes through the guide sprocket and is fixedly connected to the chain retractor, and the chain retractor is fixedly mounted on the integrated fork frame.

[0012] Preferably, the lower telescopic fork includes two sets of lower guide rails fixedly mounted on the double-gantry vehicle body and a lower driving machine fixedly mounted on the double-gantry vehicle body, and the lower guide rails are slidably connected with a material discharge support fork, and the lower driving machine is used to drive the material discharge support fork to slide along both sides of the lower guide rails.

[0013] Preferably, the lower driving machine includes a driving motor fixedly mounted on the double-gantry vehicle body and a telescopic rack fixedly mounted on the lower end of the material discharge support fork, and a driving gear meshing with the telescopic rack is fixedly mounted on the output end of the driving motor.

[0014] Preferably, the upper telescopic fork comprises an upper guide rail fixedly arranged on the integrated fork frame, a telescopic slide rod 1 is slidably mounted on the upper guide rail, a telescopic slide rod 2 is slidably connected to the telescopic slide rod 1, and the material picking suction cup is arranged on the telescopic slide rod 2.

[0015] Preferably, a telescopic driving seat is fixedly mounted on the upper guide rail, and a primary driving machine for driving the first telescopic slide rod to slide and a secondary driving machine for driving the second telescopic slide rod to slide are fixedly mounted on the telescopic driving seat.

[0016] Preferably, a cargo sensing sensor for detecting the cargo stacking height is fixedly mounted on the gantry lifting mechanism.

[0017] Preferably, a negative pressure sensor for detecting the pressure of the vacuum pipeline is provided in the material taking suction cup.

[0018] Beneficial effects of the present invention:

[0019] (1) The present invention can realize the individual selection of plates without moving the entire stack of goods, thereby greatly improving the picking efficiency. The picked plates can be directly packaged and transported quickly, which not only saves time, but also reduces operating costs and improves the overall logistics efficiency;

[0020] (2) The double-gantry forklift lifting system of the present invention can also be customized according to the size and weight of the plate to meet different storage and handling requirements. This flexibility makes the double-gantry forklift lifting system an ideal choice for dense storage and efficient picking of plates. In general, the double-gantry forklift lifting system not only optimizes the storage and picking process of plates through its efficient operation mode, but also improves logistics efficiency and reduces costs. It is an indispensable logistics equipment in industrial upgrading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of a double-door forklift lifting system for picking and loading and unloading plates of the present invention;

[0023] Figure 2 The invention discloses an axonometric structural diagram of a double-door forklift lifting system for picking and loading and unloading plates.

[0024] In the figure: 1. gantry lifting mechanism; 2. upper telescopic fork; 21. upper guide rail; 22. telescopic drive seat; 23. primary drive motor; 24. secondary drive motor; 25. telescopic slide rod 1; 26. telescopic slide rod 2; 3. material picking suction cup; 4. lower telescopic fork; 41. lower guide rail; 42. lower drive motor; 43. material unloading support fork; 5. integrated fork frame; 6. vacuum pump; 7. double gantry body; 8. telescopic fork controller; 9. cargo sensing sensor; 10. negative pressure sensor; 11. gantry body; 12. fixed beam; 13. lifting chain; 14. guide sprocket; 15. lifting guide rail; 16. chain retractor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-Figure 2 As shown, the present invention is a double-gantry forklift lifting system for plate picking and loading and unloading, including a double-gantry body 7, on which two groups of gantry lifting mechanisms 1 distributed side by side are fixedly arranged, and an integrated fork frame 5 is vertically slidably connected between the two groups of gantry lifting mechanisms 1, and an upper telescopic fork 2 that can be extended to both sides is installed on the upper part of the integrated fork frame 5, and a material picking suction cup 3 for adsorbing the plate is installed on the upper telescopic fork 2, and a lower telescopic fork 4 for storing the plate is installed in the middle of the upper end of the double-gantry body 7, and the lower telescopic fork 4 can be extended to both sides of the double-gantry body 7.

[0029] In an optional embodiment, a vacuum pump 6 for providing an air source to the material picking suction cup 3 is fixedly installed on the double-gantry vehicle body 7 .

[0030] It should be noted that the vacuum pump 6 provides a stable air source for the material taking suction cup 3, thereby ensuring stable adsorption of the plate.

[0031] In an optional embodiment, a telescopic fork controller 8 for controlling the telescopic movement of the upper telescopic fork 2 and the lower telescopic fork 4 is installed on the double-mast vehicle body 7 .

[0032] It should be noted that the telescopic movement of the upper telescopic fork 2 and the lower telescopic fork 4 is precisely controlled by the telescopic fork controller 8, thereby ensuring accurate material removal of the plate.

[0033] In an optional embodiment, the gantry lifting mechanism 1 includes a gantry body 11 and a chain retractor 16, a fixed beam 12 is fixedly arranged on the upper part of the gantry body 11, a plurality of guide sprockets 14 are rotatably mounted on the gantry body 11, a lifting chain 13 is fixedly connected to the fixed beam 12, the lifting chain 13 passes through the guide sprocket 14 and is fixedly connected to the chain retractor 16, and the chain retractor 16 is fixedly mounted on the integrated fork frame 5.

[0034] It should be noted that the chain is retracted and released by setting a chain retractor 16, thereby driving the integrated fork frame 15 to move up and down, and adjusting the height of the upper telescopic fork 2 to achieve the retrieval and placement of items on shelves of different heights, and a lifting guide rail 15 is provided on the door frame body 11 for guiding and limiting the movement of the integrated fork frame 15.

[0035] In an optional embodiment, the lower telescopic fork 4 includes two sets of lower guide rails 41 fixedly mounted on the double-gantry vehicle body 7 and a lower driving machine 42 fixedly mounted on the double-gantry vehicle body 7, and a material discharge support fork 43 is slidably connected to the lower guide rail 41, and the lower driving machine 42 is used to drive the material discharge support fork 43 to slide along both sides of the lower guide rail 41.

[0036] It should be noted that the lower driving machine 42 drives the material discharging support fork 43 to telescopically slide, so that the lower telescopic fork 4 is extended to perform the unloading operation after the forklift returns to the loading and unloading position.

[0037] In an optional embodiment, the lower driving machine 42 includes a driving motor fixedly mounted on the double-gantry vehicle body 7 and a telescopic rack fixedly mounted on the lower end of the material discharge support fork 43, and the output end of the driving motor is fixedly mounted with a driving gear meshing with the telescopic rack.

[0038] It should be noted that the drive motor drives the drive gear to rotate, and the meshing transmission of the gear rack is used to realize the telescopic drive of the material discharge support fork 43.

[0039] In an optional embodiment, the upper telescopic fork 2 includes an upper guide rail 21 fixedly mounted on the integrated fork frame 5, a telescopic slide rod 25 is slidably mounted on the upper guide rail 21, a telescopic slide rod 26 is slidably connected to the telescopic slide rod 1 25, and the material picking suction cup 3 is arranged on the telescopic slide rod 26.

[0040] It should be noted that, by providing the telescopic slide rod 1 25 and the telescopic slide rod 2 26 , the telescopic range of the upper telescopic fork 2 is increased, thereby increasing the range for taking and placing the plate.

[0041] In an optional embodiment, a telescopic driving seat 22 is fixedly mounted on the upper guide rail 21, and a primary driving motor 23 for driving the telescopic slide rod 1 25 to slide and a secondary driving motor 24 for driving the telescopic slide rod 2 26 to slide are fixedly mounted on the telescopic driving seat 22.

[0042] It should be noted that the telescopic slide rod 1 25 and the telescopic slide rod 2 26 are driven respectively by the primary driving motor 23 and the secondary driving motor 24 to ensure stable driving during the telescopic process.

[0043] In an optional embodiment, a cargo sensing sensor 9 for detecting the cargo stacking height is fixedly mounted on the gantry lifting mechanism 1 .

[0044] It should be noted that, when the single sheets are picked up and arranged in sequence and placed on the lower telescopic fork 4 and the cargo sensing sensor 9 detects that the maximum cargo height has been reached, the system alarms, and the forklift returns to the loading and unloading position and the lower telescopic fork 4 is extended to perform unloading operations.

[0045] In an optional embodiment, a negative pressure sensor 10 for detecting the pressure of the vacuum pipeline is arranged in the material picking suction cup 3.

[0046] It should be noted that, after the upper telescopic fork 2 extends unilaterally to the top of the plate, it descends until the suction cup is pressed against the top of the plate, and then the vacuum pump 6 is started to build up negative pressure. At the same time, the negative pressure sensor 10 detects the pressure of the vacuum pipeline. When the pressure reaches the required value, the integrated fork frame 5 is lifted, driving the plate to rise.

[0047] The working principle of the present invention is as follows: the upper and lower telescopic forks in the lifting system are fixed on the frame integrated fork frame 5, the upper telescopic fork 2 is equipped with a material taking suction cup 3, the suction cup is provided with negative pressure by a vacuum pump 6, the upper and lower telescopic forks are driven by a motor, and the motor is driven and controlled by a telescopic fork driver 8, the cargo sensing sensor is used to detect the height of the cargo stacked on the lower telescopic fork, and the integrated fork frame 5 is driven to rise by the double-mast lifting mechanism 1. The entire double-mast lifting system is assembled on the double-mast vehicle body 7. During operation, after the forklift moves to the middle of two rows of shelves, the integrated fork frame 5 is driven by the double-door lifting mechanism 1 to rise until the height of the material-taking suction cup 3 from the ground is greater than the height of the top plate of the shelf from the ground. The upper telescopic fork 2 extends unilaterally to the top of the plate and then descends until the suction cup is pressed against the top of the plate. Then the vacuum pump 6 is started to build negative pressure. At the same time, the negative pressure sensor 10 detects the pressure of the vacuum pipeline. When the pressure reaches the required value, the integrated fork frame 5 rises, driving the plate to rise, and the upper rear telescopic 2 forks return to the middle position. At the same time, the plate is put down and falls onto the top of the lower telescopic fork 4 for stacking. Single plates are picked up in turn, sorted, and placed on the lower telescopic fork 4. When the cargo sensing sensor 9 detects that the maximum cargo height has been reached, the system alarms, and the forklift returns to the loading and unloading position, and the lower telescopic fork 4 is extended for unloading operations.

[0048] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A double-gantry forklift lifting system for plate picking and loading and unloading, characterized in that: The invention comprises a double-gantry vehicle body (7), wherein two groups of gantry lifting mechanisms (1) are fixedly arranged on the gantry lifting mechanism (1) and are arranged side by side, and an integrated fork frame (5) is vertically slidably connected between the two groups of gantry lifting mechanisms (1), and an upper telescopic fork (2) which can be extended to both sides is installed on the upper part of the integrated fork frame (5), and a material taking suction cup (3) for adsorbing plate is installed on the upper telescopic fork (2), and a lower telescopic fork (4) for storing plate is installed in the middle part of the upper end of the double-gantry vehicle body (7), and the lower telescopic fork (4) can be extended to both sides of the double-gantry vehicle body (7).

2. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: A vacuum pump (6) for providing an air source to the material taking suction cup (3) is fixedly mounted on the double-gantry vehicle body (7).

3. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: A telescopic fork controller (8) for controlling the telescopic movement of an upper telescopic fork (2) and a lower telescopic fork (4) is installed on the double-door frame vehicle body (7).

4. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: The gantry lifting mechanism (1) comprises a gantry body (11) and a chain retractor (16); a fixed beam (12) is fixedly arranged on the upper part of the gantry body (11); a plurality of guide sprockets (14) are rotatably mounted on the gantry body (11); a lifting chain (13) is fixedly connected to the fixed beam (12); the lifting chain (13) passes through the guide sprockets (14) and is fixedly connected to the chain retractor (16); and the chain retractor (16) is fixedly mounted on the integrated fork frame (5).

5. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: The lower telescopic fork (4) comprises two sets of lower guide rails (41) fixedly arranged on the double-mast frame body (7) and a lower driving machine (42) fixedly installed on the double-mast frame body (7); a material discharge support fork (43) is slidably connected to the lower guide rail (41); and the lower driving machine (42) is used to drive the material discharge support fork (43) to slide along both sides of the lower guide rail (41).

6. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 5, characterized in that: The lower driving machine (42) comprises a driving motor fixedly mounted on the double-door frame vehicle body (7) and a telescopic rack fixedly mounted on the lower end of the material discharge support fork (43), and a driving gear meshing with the telescopic rack is fixedly mounted on the output end of the driving motor.

7. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: The upper telescopic fork (2) comprises an upper guide rail (21) fixedly arranged on the integrated fork frame (5), a telescopic slide rod 1 (25) is slidably mounted on the upper guide rail (21), a telescopic slide rod 2 (26) is slidably connected to the telescopic slide rod 1 (25), and the material taking suction cup (3) is arranged on the telescopic slide rod 2 (26).

8. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 7, characterized in that: A telescopic drive seat (22) is fixedly mounted on the upper guide rail (21), and a primary drive motor (23) for driving a telescopic slide rod 1 (25) to slide and a secondary drive motor (24) for driving a telescopic slide rod 2 (26) to slide are fixedly mounted on the telescopic drive seat (22).

9. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: A cargo sensing sensor (9) for detecting the cargo stacking height is fixedly mounted on the gantry lifting mechanism (1).

10. A double-gantry forklift lifting system for plate picking and loading and unloading according to claim 1, characterized in that: A negative pressure sensor (10) for detecting the pressure of the vacuum pipeline is arranged in the material taking suction cup (3).