Tray positioning mechanism at a vertical reversing position of a conveyor

Abstract

This utility model discloses a pallet positioning mechanism at the vertical reversing position of a conveyor, solving the problem of inaccurate reversing of pallets of various specifications at the vertical reversing position. A pallet guide push plate bracket is installed on the rear side of the roller-type lifting transfer machine. A guide push plate drive motor is installed on the guide push plate bracket. A horizontal swing arm is connected to the upward output shaft of the guide push plate drive motor. A first vertical connecting shaft is installed at the outer end of the horizontal swing arm. A first rod end bearing is connected to the first vertical connecting shaft. A horizontal screw is connected to the rod end of the first rod end bearing. A second rod end bearing is connected to the outer end of the horizontal screw. A second vertical pin is connected to the bearing of the second rod end bearing. Parallel brackets are connected to the upper and lower ends of the second vertical pin. A guide push plate is connected to the other end of the parallel brackets. The guide push plate is movably abutted against the rear vertical surface of the pallet, ensuring accurate reversing of the pallet at the vertical reversing position.

Description

Technical Field

[0001] This utility model relates to a pallet conveyor, and more particularly to a pallet positioning mechanism at the vertical reversing position of the conveyor. Background Technology

[0002] In automated storage and retrieval systems (AS / RS), conveyors are used to transport goods between the loading positions and the stacker crane entry points. Goods are placed on pallets, and the pallets with goods are transported by the conveyors. The pallets and goods are first transported by longitudinal conveyors to the vertical reversing position, where they undergo a vertical reversal. Then, they are transported laterally by transverse conveyors, thus completing the vertical reversal of the pallets and goods. To ensure the accuracy of pallet and goods transport after the vertical reversal, fixed stops are installed at the vertical reversing position to position the pallets from the longitudinal direction at the center of the transverse conveyor line. Due to the diversity of goods stored in AS / RS, pallets of different sizes are frequently used to carry goods of varying sizes. A single fixed stop is no longer sufficient to accurately position the pallets after the vertical reversal. Developing a mechanism that can adjust the positioning stops in real time according to the pallet size has become a challenge that AS / RS needs to address. Summary of the Invention

[0003] This invention provides a pallet positioning mechanism at the vertical reversing position of a conveyor, solving the technical problem of how to develop a positioning stop that can be flexibly adjusted in a timely manner according to the size of the pallet.

[0004] This utility model solves the above technical problems through the following technical solution: A pallet positioning mechanism at a vertical reversing position of a conveyor includes a roller lifting and transferring machine. A longitudinal chain conveyor is positioned in front of the roller lifting and transferring machine, and a transverse chain conveyor is positioned to the right of the roller lifting and transferring machine. The pallet is transported by the longitudinal chain conveyor to the roller lifting and transferring machine for vertical reversal, and then enters the longitudinal chain conveyor for further transport. A pallet guide plate support is positioned behind the roller lifting and transferring machine, and a guide plate drive motor is mounted on the guide plate support. A horizontal swing arm is connected to the upward output shaft. A first vertical connecting shaft is provided at the outer end of the horizontal swing arm. A first rod end bearing is connected to the first vertical connecting shaft. A horizontal screw is connected to the rod end of the first rod end bearing. A second rod end bearing is connected to the outer end of the horizontal screw. A second vertical pin is connected to the bearing of the second rod end bearing. Parallel brackets are connected to the upper and lower ends of the second vertical pin. A guide push plate is connected to the other end of the parallel brackets. The guide push plate is movably abutted against the rear side of the tray.

[0005] A left guide sleeve and a right guide sleeve are respectively provided on the guide push plate bracket. A left longitudinal guide rod is movably installed in the left guide sleeve, and the front end of the left longitudinal guide rod is connected to the left end of the guide push plate. A right longitudinal guide rod is movably installed in the right guide sleeve, and the front end of the right longitudinal guide rod is connected to the right end of the guide push plate.

[0006] A first locking nut is provided at the connection between the rod end of the first rod end bearing and the horizontal screw, and a second locking nut is provided at the connection between the horizontal screw and the rod end of the second rod end bearing.

[0007] This invention features strong adjustability, high adaptability, and low manufacturing cost, enabling precise reversing of pallets of various specifications in the vertical reversing position. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the conveyor line of this utility model from a top view. Figure 2 This is a schematic diagram of the structure of this utility model from a top view. Figure 3 This is a schematic diagram of the structure of this utility model from the left-hand view. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings: A pallet positioning mechanism at a vertical reversing position of a conveyor includes a roller lifting and transferring machine 1. A longitudinal chain conveyor 2 is arranged at the front of the roller lifting and transferring machine 1, and a transverse chain conveyor 3 is arranged at the right side of the roller lifting and transferring machine 1. The pallet 4 is conveyed by the longitudinal chain conveyor 2 onto the roller lifting and transferring machine 1 for vertical reversal and then enters the longitudinal chain conveyor 2 for further conveying. A pallet guide push plate bracket 5 is arranged at the rear of the roller lifting and transferring machine 1. A guide push plate drive motor 6 is arranged on the guide push plate bracket 5. The guide push plate drive motor 6 is arranged in a vertical direction. A horizontal swing arm 8 is connected to the upward output shaft 7 of the guide push plate drive motor 6. The guide push plate drive motor 6 is a servo motor. Under the drive of the guide push plate drive motor 6, the horizontal swing arm 8 swings in the horizontal plane, similar to a crank. A first vertical connecting shaft 9 is arranged at the outer end of the horizontal swing arm 8. A first rod end bearing 10 is connected to the shaft 9. A horizontal screw 11 is connected to the rod end of the first rod end bearing 10. A second rod end bearing 12 is connected to the outer end of the horizontal screw 11. A second vertical pin 14 is connected to the bearing of the second rod end bearing 12. Parallel supports 15 are connected to the upper and lower ends of the second vertical pin 14. A guide push plate 13 is connected to the other end of the parallel supports 15. The entire transmission mechanism realizes the conversion of the swing motion of the horizontal swing arm 8 driven by the guide push plate drive motor 6 in the horizontal plane into the forward and backward linear motion of the guide push plate 13. The guide push plate 13 is movably abutted against the rear side of the pallet 4. The forward extension distance of the guide push plate 13 is adjusted by controlling the rotation angle of the guide push plate drive motor 6, thereby realizing the centering of pallets 4 of different sizes and specifications. After the vertical reversal, the central axis of the pallet is on the center line of the transverse chain conveyor 3.

[0010] A left guide sleeve 18 and a right guide sleeve 19 are respectively provided on the guide push plate bracket 5. A left longitudinal guide rod 16 is movably arranged in the left guide sleeve 18, and the front end of the left longitudinal guide rod 16 is connected to the left end of the guide push plate 13. A right longitudinal guide rod 17 is movably arranged in the right guide sleeve 19, and the front end of the right longitudinal guide rod 17 is connected to the right end of the guide push plate 13, so as to guide the back and forth movement of the guide push plate 13.

[0011] A first locking nut 20 is provided at the connection between the rod end of the first rod end bearing 10 and the horizontal screw 11, and a second locking nut 21 is provided at the connection between the horizontal screw 11 and the rod end of the second rod end bearing 12. By rotating the horizontal screw 11, the distance between the first rod end bearing 10 and the second rod end bearing 12 can be finely adjusted to facilitate the smooth progress of the assembly work.

Claims

1. A pallet positioning mechanism at a vertical reversing position of a conveyor, comprising a roller lifting transfer machine (1), a longitudinal chain conveyor (2) disposed on the front side of the roller lifting transfer machine (1), and a transverse chain conveyor (3) disposed on the right side of the roller lifting transfer machine (1), wherein a pallet (4) is conveyed by the longitudinal chain conveyor (2) onto the roller lifting transfer machine (1) for vertical reversal, and then enters the longitudinal chain conveyor (2) for further conveying; characterized in that, A guide push plate bracket (5) for the pallet is provided on the rear side of the roller lifting transfer machine (1). A guide push plate drive motor (6) is provided on the guide push plate bracket (5). A horizontal swing arm (8) is connected to the upward output shaft (7) of the guide push plate drive motor (6). A first vertical connecting shaft (9) is provided at the outer end of the horizontal swing arm (8). A first rod end bearing (10) is connected to the first vertical connecting shaft (9). A horizontal screw (11) is connected to the rod end of the first rod end bearing (10). A second rod end bearing (12) is connected to the outer end of the horizontal screw (11). A second vertical pin (14) is connected in the bearing of the second rod end bearing (12). A parallel bracket (15) is connected to the upper and lower ends of the second vertical pin (14). A guide push plate (13) is connected to the other end of the parallel bracket (15). The guide push plate (13) is movably abutted against the rear side of the pallet (4).

2. The pallet positioning mechanism at the vertical reversing position of a conveyor according to claim 1, characterized in that, A left guide sleeve (18) and a right guide sleeve (19) are respectively provided on the guide push plate bracket (5). A left longitudinal guide rod (16) is movably arranged in the left guide sleeve (18). The front end of the left longitudinal guide rod (16) is connected to the left end of the guide push plate (13). A right longitudinal guide rod (17) is movably arranged in the right guide sleeve (19). The front end of the right longitudinal guide rod (17) is connected to the right end of the guide push plate (13).

3. A pallet positioning mechanism at a vertical reversing position of a conveyor according to claim 1 or 2, characterized in that, A first locking nut (20) is provided at the connection between the rod end of the first rod end bearing (10) and the horizontal screw (11), and a second locking nut (21) is provided at the connection between the horizontal screw (11) and the rod end of the second rod end bearing (12).

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