Unloading transition device

Abstract

The utility model discloses an unloading transition device which comprises a machine frame arranged between a truck and a conveyor, a height adjusting mechanism is arranged on the machine frame, and a transition conveying line is fixed at the top end of the height adjusting mechanism. The height adjusting structure drives the transition conveying line to ascend and descend till the transition conveying line is coplanar with the truck loading and unloading base or the conveyor so as to be connected and automatically convey goods from the truck or the conveyor. The utility model has the beneficial effects that the transition conveying line is arranged between the conveyor and the truck, and the transition conveying line and the products carried on the transition conveying line are driven to move up and down through the height adjusting mechanism, so that the products on the conveying line are conveyed to the truck loading and unloading bases with different heights, and the loading and unloading requirements of the products on the trucks with different heights are met; or the height of the transition conveying line is synchronously adjusted according to the height change of the truck body in the unloading process, the flexibility and the self-adaption degree are improved, and labor force and labor cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of conveyor technology, and in particular relates to an unloading transition device. Background Technology

[0002] Conveyors, as commonly used material handling equipment, are typically applied in warehousing, loading and unloading, and other similar applications. When used for cargo handling or unloading, they can reduce labor costs, improve efficiency, and increase the yield rate of transported products. Existing conveyor structures for cargo loading and unloading can be referenced in existing patent CN200620070747.5, "Loading and Unloading Device for Containers." However, because the height of conveyors in existing technologies, including this patent, is fixed, they can only accommodate trucks of a certain height. Since the height of the loading and unloading base varies for trucks of different lengths, manual transfer is still required when there is a height difference between the conveyor and the truck to improve product transport efficiency and quality. Furthermore, as the weight on the truck gradually decreases during unloading, the truck's height gradually increases, thus increasing the height difference between the conveyor and the truck and consequently increasing the difficulty of unloading.

[0003] To address the aforementioned problems, designing a cargo unloading and transition device is an important technical issue that those skilled in the art need to solve. Utility Model Content

[0004] The purpose of this invention is to solve the aforementioned problems in the prior art and to provide a cargo unloading and transition device.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] The unloading transition device includes a frame disposed between a truck and a conveyor, a height adjustment mechanism disposed on the frame, and a transition conveyor line fixed to the top of the height adjustment mechanism; the height adjustment mechanism drives the transition conveyor line to rise and fall until the transition conveyor line is coplanar with the loading and unloading base of the truck or the conveyor, so as to connect and automatically transport goods from the truck or the conveyor.

[0007] Preferably, the height adjustment mechanism includes at least a motor fixed to the frame and a lifting rod driven by the motor to reciprocate up and down; the lifting rod is arranged parallel to the motor, the output end of the motor is connected to a rotating shaft through a bevel gear, and the output end of the rotating shaft is connected to the lifting rod through a bevel gear.

[0008] Preferably, the lifting rod is arranged along the height direction of the frame and passes through the frame; the top of the lifting rod is higher than the upper surface of the rotating shaft and is fixedly connected to a support block; the support block is located on the lower surface of the transition conveyor line and is fixedly connected to the transition conveyor line.

[0009] Preferably, the lifting rod is a threaded rod, which is driven by the motor to rotate and lift.

[0010] Preferably, the frame is further provided with a movable rod, which is arranged parallel to the lifting rod and located on both sides of the lifting rod, and moves synchronously with the lifting rod; the top end of the lifting rod is fixed to the lower surface of the transition conveyor line.

[0011] Preferably, the outer periphery of the movable rod is fitted with a bushing, and the bushing is fixed to the frame.

[0012] Preferably, the conveying rollers on the transition conveyor line are non-powered conveying rollers.

[0013] Preferably, a protective cover is fixed to the outside of the frame, and the motor is fixed to the protective cover and located inside the protective cover.

[0014] The advantages of this utility model's technical solution are mainly reflected in:

[0015] A transition conveyor line is set between the conveyor and the truck, and the transition conveyor line and the products it carries are driven to move up and down by a height adjustment mechanism to transport the products on the conveyor line to the loading and unloading bases of trucks of different heights to meet the loading and unloading needs of trucks of different heights; or the height of the transition conveyor line can be adjusted synchronously according to the height change of the truck body during the unloading process to improve flexibility and adaptability and reduce labor and labor costs.

[0016] Parallel moving rods are set on both sides of the lifting rod to ensure that the transition conveyor line is subjected to balanced force during the lifting process and to share the weight of the lifting rod, thereby improving stability and extending the service life of the height adjustment mechanism.

[0017] A protective cover is installed on the outer surface of the frame to form a flat plane, which determines the limit of the truck's movement and ensures that the products will not fall off the frame during loading and unloading, thus ensuring the quality of product delivery and the yield rate. Attached Figure Description

[0018] Figure 1 : A first perspective view of a preferred embodiment of the present invention;

[0019] Figure 2 : A partial perspective view of the second direction of the preferred embodiment of this utility model;

[0020] Figure 3 : A partial hidden front view of a preferred embodiment of this utility model. Detailed Implementation

[0021] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0022] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0023] like Figure 1 As shown, this utility model discloses an unloading transition device, including a frame 1 disposed between a truck and a conveyor 4, with a protective cover 11 fixed to the outside of the frame 1. The protective cover 11 forms a flat surface, effectively preventing dust and other impurities from entering its interior, ensuring a suitable installation environment for the height adjustment mechanism 2 within the protective cover 11, and preventing products from falling off the frame 1 during loading and unloading, thus ensuring product conveying quality and yield. The conveyor 4 is mounted on a workbench.

[0024] Furthermore, the frame 1 is also provided with buffer pads, which are disposed on both sides of the protective cover 11 and protrude from the outer surface of the protective cover 11. These buffer pads are used to determine the limits of the truck's movement and reduce damage to the truck or the frame 1 caused by collisions. The buffer pads can be made of known materials with elastic cushioning properties, including rubber and silicone, and the specific material is not limited here.

[0025] like Figure 2 As shown, a height adjustment mechanism 2 is provided on the frame 1. Further, the height adjustment mechanism 2 includes at least a motor 21 fixed to the frame 1 and a lifting rod 22 driven by the motor 21 to reciprocate up and down. The motor 21 is fixed to the protective cover 11 and located inside the protective cover 11. The lifting rod 22 is arranged parallel to the motor 21, and the output end of the motor 21 is connected to a rotating shaft 2102 via a bevel gear. The output end of the rotating shaft 2102 is connected to the lifting rod 22 via a bevel gear. Since bevel gears are a known structure, they will not be described in detail here.

[0026] Furthermore, such as Figure 3 As shown, the lifting rod 22 is arranged along the height direction of the frame 1 and passes through the frame 1. The top of the lifting rod 22 is higher than the upper surface of the rotating shaft 2102 and is fixedly connected to a support block 23. The support block 23 is located on the lower surface of the transition conveyor line 3 and is fixedly connected to the transition conveyor line 3. Furthermore, in this invention, the lifting rod 22 is preferably designed as a threaded rod, which provides higher reliability of movement compared to a smooth rod. The lifting rod 22 is driven to rotate and lift by the motor 21.

[0027] In existing technologies, the vertical movement of the conveyor or transition conveyor line can be achieved by driving with a cylinder or servo cylinder. However, ordinary cylinders can only stop at two positions: the starting point and the ending point, meaning they can only adapt to two different truck heights, with varying degrees of adaptability. While servo cylinders can meet different height requirements, when using servo cylinders or linear motors, they need to be directly connected to the bottom end of the lifting rod 22, resulting in low movement stability and the lifting rod 22 being prone to bending during use. Furthermore, in existing technologies, when using electric cylinders to drive the vertical movement of the conveyor or transition conveyor line, the two ends of the lead screw are fixed and rotate, with only the moving block lifting and lowering the conveyor. However, this method involves a large travel distance, and the gap between the transition conveyor line and the truck or conveyor 4 is large, increasing the risk of goods falling during movement. Therefore, the height adjustment mechanism 2 disclosed in this utility model also satisfies the requirements of high stability, the lifting rod being less prone to bending under force, and a small gap between it and the truck and conveyor, reducing the risk of goods falling.

[0028] The frame 1 is also equipped with a movable rod 24, which is parallel to the lifting rod 22 and located on both sides of the lifting rod 22, and moves synchronously with the lifting rod 22. The parallel arrangement of the movable rods on both sides of the lifting rod ensures balanced force on the transition conveyor line during lifting and distributes the weight of the lifting rod, improving stability and extending the service life of the height adjustment mechanism. The top end of the lifting rod 22 is fixed to the lower surface of the transition conveyor line 3. A bushing 241 is fitted around the outer periphery of the movable rod 24, and the bushing 241 is fixed to the frame 1. The bushing limits the direction of movement of the movable rod, reducing swaying during movement and further improving movement stability. Furthermore, the surface of the movable rod is preferably a smooth surface to reduce friction and resistance during movement and increase movement speed.

[0029] The height adjustment mechanism 2 has a transition conveyor line 3 fixed to its top. The height adjustment mechanism 2 drives the transition conveyor line 3 to rise and fall until it is coplanar with the truck loading / unloading base or the conveyor 4, so as to connect and automatically transport goods from the truck or the conveyor 4. Specifically, the conveyor roller 31 on the transition conveyor line 3 is a non-powered conveyor roller. When the product arrives on the transition conveyor line 3, it will move towards the truck or the conveyor 4 under the drive of inertia or tension. The conveyor 4 can also be a powered conveyor. In this case, the product can move towards the truck or the conveyor 4 under the drive of the conveyor 4 after arriving on the transition conveyor line 3, thereby reducing labor. In addition, in other embodiments, the transition conveyor line 3 can also be a powered conveyor roller. In this case, the transition conveyor line 3 will be activated when it is coplanar with the target point. Specifically, when the product moves towards the truck, the powered conveyor roller will be activated when the transition conveyor line 3 is level with the truck loading / unloading base; or the powered conveyor roller will be activated when the transition conveyor line 3 is level with the conveyor 4. A transition conveyor line is set up between the conveyor and the truck. The transition conveyor line and the products it carries are driven to move up and down by a height adjustment mechanism to transport the products on the conveyor line to the loading and unloading bases of trucks of different heights, so as to meet the loading and unloading needs of trucks of different heights. Alternatively, the height of the transition conveyor line can be automatically adjusted according to the change of truck height during the unloading process, thereby improving flexibility and adaptability and reducing labor and labor costs.

[0030] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A cargo unloading transition device, characterized in that: Includes a frame (1) set between the truck and the conveyor (4), the frame (1) is provided with a height adjustment mechanism (2), and a transition conveyor line (3) is fixed at the top of the height adjustment mechanism (2); the height adjustment mechanism (2) drives the transition conveyor line (3) to rise and fall until the transition conveyor line (3) is coplanar with the truck loading and unloading base or the conveyor (4) to connect and automatically transport goods from the truck or the conveyor (4).

2. The unloading transition device according to claim 1, characterized in that: The height adjustment mechanism (2) includes at least a motor (21) fixed on the frame (1) and a lifting rod (22) driven by the motor (21) to move up and down reciprocally; the lifting rod (22) is arranged parallel to the motor (21), and the output end of the motor (21) is connected to a rotating shaft (2102) through a bevel gear, and the output end of the rotating shaft (2102) is connected to the lifting rod (22) through a bevel gear.

3. The unloading transition device according to claim 2, characterized in that: The lifting rod (22) is arranged along the height direction of the frame (1) and passes through the frame (1); the top of the lifting rod (22) is higher than the upper surface of the rotating shaft (2102) and is fixedly connected to a support block (23); the support block (23) is located on the lower surface of the transition conveyor line (3) and is fixedly connected to the transition conveyor line (3).

4. The unloading transition device according to claim 3, characterized in that: The lifting rod (22) is a threaded rod, which is driven to rotate and lift by the motor (21).

5. The unloading transition device according to claim 4, characterized in that: The frame (1) is also provided with a movable rod (24), which is parallel to the lifting rod (22) and located on both sides of the lifting rod (22), and moves synchronously with the lifting rod (22); the top of the lifting rod (22) is fixed to the lower surface of the transition conveyor line (3).

6. The unloading transition device according to claim 5, characterized in that: The outer periphery of the moving rod (24) is fitted with a bushing (241), and the bushing (241) is fixed to the frame (1).

7. The unloading transition device according to claim 6, characterized in that: The conveying roller (31) on the transition conveyor line (3) is a non-powered conveying roller.

8. The unloading transition device according to claim 7, characterized in that: A protective cover (11) is fixed to the outside of the frame (1), and the motor (21) is fixed to the protective cover (11) and located inside the protective cover (11).

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