Warehouse-out conveying line tray detection and recognition device for butt joint of AGV (Automatic Guided Vehicle)

Abstract

The utility model discloses a warehouse-out conveying line tray detection and identification device of a butt-joint AGV (Automatic Guided Vehicle), which comprises an unloading mechanism and a detection and identification mechanism connected with the unloading mechanism. The detection and recognition mechanism comprises a detection and recognition chain conveyor, a recognition in-place sensing photoelectric switch, a tray detection and recognition grating sensor and a recognition guide limiting plate; the detection and recognition chain conveyor, the recognition in-place sensing photoelectric switch, the tray detection and recognition grating sensor and the recognition guide limiting plate are arranged on the side face of the detection and recognition chain conveyor, and the unloading mechanism comprises an unloading chain conveyor, an unloading in-place sensing photoelectric switch and an unloading guide limiting plate. The unloading in-place sensing optoelectronic switch and the unloading guide limiting plate are arranged on the side face of the unloading chain conveyor. The tray can be distinguished and is used for being in butt joint with the AGV forklift, so that the AGV forklift can conveniently distribute and place the trays.

Description

Technical Field

[0001] This utility model relates to the field of finished pipe fittings and pallet outbound handling technology, and in particular to a pallet detection and identification device for outbound conveyor lines that docks with AGVs. Background Technology

[0002] There are two types of pallets emerging from the automated warehouse's outbound conveyor line: single-product pallets (multiple empty pallets stacked together) and multi-product pallets (pallets with some outbound items on them). Single-product pallets need to be delivered to designated locations according to the packaging production needs of each packaging workshop, while multi-product pallets need to be placed in fixed positions around the outbound conveyor line for manual handling. To facilitate the designated delivery of single-product pallets and the designated placement of multi-product pallets by AGVs, the two types of pallets must be identified and distinguished in advance, and then the differentiation signal must be sent to the AGVs for delivery and placement. Utility Model Content

[0003] To address the aforementioned issues, this utility model aims to provide a pallet detection and identification device for outbound conveyor lines connected to AGVs, which distinguishes and identifies pallets so that AGV forklifts can deliver and place the pallets.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution: a pallet detection and identification device for an outbound conveyor line docking with an AGV, comprising a detection and identification mechanism and an unloading mechanism. The detection and identification mechanism is connected to the unloading mechanism. The detection and identification mechanism includes a detection and identification chain conveyor, a front-side identification positioning photoelectric switch, a rear-side identification positioning photoelectric switch, and a pallet detection and identification grating sensor. The pallet detection and identification grating sensor is disposed on the side of the detection and identification chain conveyor. The front-side identification positioning photoelectric switch and the rear-side identification positioning photoelectric switch are symmetrically disposed on the front and rear sides of the detection and identification chain conveyor. The unloading mechanism includes an unloading chain conveyor, a front-side unloading positioning photoelectric switch, and a rear-side unloading positioning photoelectric switch. The outlet end of the detection and identification chain conveyor is connected to the inlet end of the unloading chain conveyor. The front-side unloading positioning photoelectric switch and the rear-side unloading positioning photoelectric switch are symmetrically disposed on the front and rear sides of the unloading chain conveyor.

[0005] The detection and identification mechanism also includes a front identification guide limiting plate and a rear identification guide limiting plate. The front and rear sides of the detection and identification chain conveyor are respectively provided with a front identification guide limiting plate and a rear identification guide limiting plate. The right end of both the front and rear identification guide limiting plates is provided with a contraction opening from right to left.

[0006] The front-side positioning sensor photoelectric switch is mounted on the front-side positioning sensor photoelectric switch mounting bracket, and the rear-side positioning sensor photoelectric switch is mounted on the rear-side positioning sensor photoelectric switch mounting bracket.

[0007] The pallet detection and recognition grating sensor includes a transmitter and a receiver, which are respectively installed on the front and rear sides of the detection and recognition chain conveyor.

[0008] The transmitter is fixed on a transmitter mounting bracket, and the receiver is fixed on a receiver mounting bracket. Both the transmitter mounting bracket and the receiver mounting bracket are fixed to the side of the detection and identification chain conveyor.

[0009] The detection and identification chain conveyor is equipped with two tray detection and identification grating sensors: a left tray detection and identification grating sensor and a right tray detection and identification grating sensor.

[0010] The unloading mechanism also includes a front unloading guide limit plate and a rear unloading guide limit plate. The front unloading guide limit plate and the rear unloading guide limit plate are respectively provided on the front and rear sides of the unloading chain conveyor. The front unloading guide limit plate is connected to the front identification guide limit plate, and the rear unloading guide limit plate is connected to the rear identification guide limit plate. The length of the front unloading guide limit plate is shorter than the length of the rear unloading guide limit plate.

[0011] Both the front unloading guide limit plate and the rear unloading guide limit plate have a contraction opening from right to left on their right ends.

[0012] The front unloading position sensor photoelectric switch is mounted on the front unloading position sensor photoelectric switch mounting bracket, and the rear unloading position sensor photoelectric switch is mounted on the rear unloading position sensor photoelectric switch mounting bracket.

[0013] Compared with the prior art, this utility model has the following advantages: The right ends of the front and rear unloading guide limit plates of this utility model are designed with a right-to-left contraction opening. This provides guidance for the pallet entering the unloading chain conveyor and limits its movement during transport, preventing it from running away and tipping over, thus improving the stability of the conveyor. Similarly, the right sides of the front and rear identification guide limit plates are designed with a right-to-left contraction opening. This provides guidance for the pallet entering the detection and identification chain conveyor and limits its movement during transport, preventing it from running away and tipping over, thus improving the stability of the conveyor. Both the unloading position sensing photoelectric switch and the identification position sensing photoelectric switch are provided in pairs, front and rear. If either one is detected, it triggers the corresponding chain conveyor to stop. If one position sensing photoelectric switch malfunctions, the other will still trigger normally, ensuring the corresponding chain conveyor stops normally, thus improving the stability and safety of the conveyor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0015] Figure 2 This is a detailed drawing of the unloading station of the device of this utility model;

[0016] Figure 3 This is a top view of the unloading station of the device of this utility model;

[0017] Figure 4 This is a detailed diagram of the detection and identification station of the device of this utility model;

[0018] Figure 5 This is a front view of the detection and identification station of the device of this utility model;

[0019] Figure 6 This is a top view of the detection and identification station of the device of this utility model;

[0020] In the diagram: 1 is a pallet with outbound products, 2 is an unloading chain conveyor, 3 is an AGV forklift, 4 is a detection and identification chain conveyor, 5 is a pallet for outbound only, 6 is a rear unloading guide limit plate, 7 is a front unloading position sensor photoelectric switch mounting bracket, 8 is a front unloading guide limit plate, 9 is a rear unloading position sensor photoelectric switch, 10 is a rear unloading position sensor photoelectric switch mounting bracket, 11 is a front unloading position sensor photoelectric switch, 12 is a rear identification guide limit plate, 13 is a front identification guide limit plate, 14 is a front identification position sensor photoelectric switch mounting bracket, 15 is a left transmitter mounting bracket, 16 is a left transmitter, 17 is a right transmitter mounting bracket, 18 is a right transmitter, 19 is a front identification position sensor photoelectric switch, 20 is a right receiver, 21 is a right receiver mounting bracket, 22 is a left receiver, 23 is a left receiver mounting bracket, 24 is a rear identification position sensor photoelectric switch, and 25 is a rear identification position sensor photoelectric switch mounting bracket. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0022] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Combined with appendix Figures 1 to 6 As shown, this embodiment discloses a pallet detection and identification device for an outbound conveyor line docking with an AGV, including a detection and identification mechanism and an unloading mechanism, wherein the detection and identification mechanism is connected to the unloading mechanism. The AGV forklift 3 is located on the side of the unloading mechanism.

[0024] The detection and identification mechanism includes a detection and identification chain conveyor 4, a front-side identification positioning photoelectric switch 19, a rear-side identification positioning photoelectric switch 24, a pallet detection and identification grating sensor, a front-side identification guide limit plate 13, and a rear-side identification guide limit plate 12. The pallet detection and identification grating sensor is disposed on the side of the detection and identification chain conveyor 4. The front-side identification positioning photoelectric switch 19 and the rear-side identification positioning photoelectric switch 24 are respectively symmetrically disposed on the front and rear sides of the detection and identification chain conveyor 4. The front-side identification positioning photoelectric switch 19 is disposed on the front-side identification positioning photoelectric switch mounting bracket 14, and the rear-side identification positioning photoelectric switch 24 is disposed on the rear-side identification positioning photoelectric switch mounting bracket 25.

[0025] The detection and identification chain conveyor 4 is equipped with a front identification guide limiting plate 13 and a rear identification guide limiting plate 12 on its front and rear sides, respectively. Both the front and rear identification guide limiting plates 13 and 12 have a right-to-left contraction opening at their right ends, and these contraction openings are symmetrical. The identification guide limiting plates provide guidance for the pallet entering the detection and identification chain conveyor and limit its movement during transport, preventing it from tipping over and improving the stability of the conveyor.

[0026] The tray detection and identification grating sensor includes a transmitter and a receiver, which are respectively installed on the front and rear sides of the detection and identification chain conveyor 4. The transmitter is fixed on a transmitter mounting bracket, and the receiver is fixed on a receiver mounting bracket. Both the transmitter mounting bracket and the receiver mounting bracket are fixed to the side of the detection and identification chain conveyor 4.

[0027] The detection and identification chain conveyor 4 is equipped with two tray detection and identification grating sensors: a left-side tray detection and identification grating sensor and a right-side tray detection and identification grating sensor. The left-side tray detection and identification grating sensor includes a left transmitter 16 and a left receiver 22. The left transmitter 16 is fixed to a left transmitter mounting bracket 15, and the left receiver 22 is fixed to a left receiver mounting bracket 23. The right-side tray detection and identification grating sensor includes a right transmitter 18 and a right receiver 20. The right transmitter 18 is fixed to a right transmitter mounting bracket 17, and the right receiver 20 is fixed to a right receiver mounting bracket 21. The left transmitter mounting bracket 15, left receiver mounting bracket 23, right transmitter mounting bracket 17, and right receiver mounting bracket 21 are all fixed to the side of the detection and identification chain conveyor 4. The left transmitter mounting bracket 15 and left receiver mounting bracket 23 are symmetrically arranged, as are the right transmitter mounting bracket 17 and right receiver mounting bracket 21.

[0028] The unloading mechanism includes an unloading chain conveyor 2, a front unloading position sensor photoelectric switch 11, a rear unloading position sensor photoelectric switch 9, a front unloading guide limit plate 8, and a rear unloading guide limit plate 6. The outlet end of the detection and identification chain conveyor 4 is connected to the inlet end of the unloading chain conveyor 2. The front unloading position sensor photoelectric switch 11 and the rear unloading position sensor photoelectric switch 9 are symmetrically arranged on the front and rear sides of the unloading chain conveyor 2, respectively. The front unloading position sensor photoelectric switch 11 is mounted on the front unloading position sensor photoelectric switch mounting bracket 7, and the rear unloading position sensor photoelectric switch 9 is mounted on the rear unloading position sensor photoelectric switch mounting bracket 10.

[0029] Both the unloading position sensor and the identification position sensor have two switches, one in the front and one in the back. As long as one of them is detected, it can trigger the corresponding chain conveyor to stop. If one position sensor malfunctions, the other position sensor will still be triggered normally, ensuring that the corresponding chain conveyor stops normally and improving the stability and safety of the conveying.

[0030] The unloading chain conveyor 2 has a front unloading guide limiting plate 8 and a rear unloading guide limiting plate 6 respectively installed on its front and rear sides. The front unloading guide limiting plate 8 is connected to the front identification guide limiting plate 13, and the rear unloading guide limiting plate 6 is connected to the rear identification guide limiting plate 12. Both the front and rear unloading guide limiting plates 8 and 6 have a right-to-left contraction opening at their right ends, which are symmetrical. The unloading guide limiting plates provide guidance for pallets entering the unloading chain conveyor 2 and limit their movement on the unloading chain conveyor 4, preventing them from tipping over and improving conveying stability. The front unloading guide limiting plate 8 is shorter than the rear unloading guide limiting plate 6 to allow the AGV forklift 3 to lift the pallet.

[0031] The specific implementation process of this utility model device in the production process is as follows: When the product-carrying pallet 1 or the pure-outbound pallet 5 is conveyed from the right side of the discharge conveyor line to the left, it is guided along the contraction opening on the right side of the front identification guide limit plate 13 and the rear identification guide limit plate 12 into the detection and identification chain conveyor 4 and is driven to the left by the detection and identification chain conveyor 4. During the conveying process, the rear identification guide limit plate 13 and the rear identification guide limit plate 12 provide a limiting function. When the product-carrying pallet 1 or the pure-outbound pallet 5 is detected by the front identification positioning photoelectric switch 19 and the rear identification positioning photoelectric switch 24, the detection and identification chain conveyor 4 stops running, and the product-carrying pallet 1 or the pure-outbound pallet 5 stops moving synchronously. Then, the left transmitter 16 and the left receiver 22 detect and identify the left side of the first-layer pallet; the right transmitter 18 and the right receiver 20 detect and identify the right side of the first-layer pallet. The presence or absence of obstructions between the transmitter and receiver of the grating sensor will generate different electrical signals to determine whether there are outgoing products between them. If no outgoing products are detected on either the left or right side of the first-layer pallet, this is a pure outgoing pallet 5. If an outgoing product is detected on either the left or right side of the first-layer pallet, this is a pallet 1 with outgoing products. After detection and identification are completed, both the detection and identification chain conveyor 4 and the unloading chain conveyor 2 start operating. The product-carrying pallet 1 or the pure-outbound pallet 5 is conveyed to the left, guided along the contraction openings on the right side of the front unloading guide limit plate 8 and the rear unloading guide limit plate 6, entering the unloading chain conveyor 2 and being conveyed to the left by it. During the conveying process, the front unloading guide limit plate 8 and the rear unloading guide limit plate 6 provide limiting functions. When the product-carrying pallet 1 or the pure-outbound pallet 5 is detected by the front unloading position photoelectric switch 11 and the rear unloading position photoelectric switch 9, the unloading chain conveyor 2 and the detection and identification chain conveyor 4 stop operating, and the product-carrying pallet 1 or the pure-outbound pallet 5 stops moving simultaneously. The pallet detection and identification grating sensor sends the detection and identification result signal to the AGV forklift 3, and the AGV forklift 3 unloads the goods according to the detection and identification result. If the previous detection and identification result was pallet 5 (pure outbound pallet), then AGV forklift 3 will pick up pallet 5 and deliver it to the designated location in the required production and packaging area. If the previous detection and identification result was pallet 1 (with outbound products), then AGV forklift 3 will pick up pallet 1 (with outbound products) and place it at a fixed location around the outbound conveyor line. After AGV forklift 3 completes unloading, it sends an unloading completion signal to the device, which then continues to connect to the right-side outbound conveyor line for the next pallet detection and identification, and so on.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A pallet detection and identification device for an outbound conveyor line docking with an AGV, comprising a detection and identification mechanism and an unloading mechanism, wherein the detection and identification mechanism is connected to the unloading mechanism, characterized in that: The detection and identification mechanism includes a detection and identification chain conveyor (4), a front-side identification positioning photoelectric switch (19), a rear-side identification positioning photoelectric switch (24), and a pallet detection and identification grating sensor. The pallet detection and identification grating sensor is located on the side of the detection and identification chain conveyor (4). The front-side identification positioning photoelectric switch (19) and the rear-side identification positioning photoelectric switch (24) are symmetrically located on the front and rear sides of the detection and identification chain conveyor (4). The unloading mechanism includes an unloading chain conveyor (2), a front-side unloading positioning photoelectric switch (11), and a rear-side unloading positioning photoelectric switch (9). The outlet end of the detection and identification chain conveyor (4) is connected to the inlet end of the unloading chain conveyor (2). The front-side unloading positioning photoelectric switch (11) and the rear-side unloading positioning photoelectric switch (9) are symmetrically located on the front and rear sides of the unloading chain conveyor (2).

2. The pallet detection and identification device for an outbound conveyor line of an AGV as described in claim 1, characterized in that: The detection and identification mechanism also includes a front identification guide limit plate (13) and a rear identification guide limit plate (12). The front identification guide limit plate (13) and the rear identification guide limit plate (12) are respectively provided on the front and rear sides of the detection and identification chain conveyor (4). The right end of the front identification guide limit plate (13) and the rear identification guide limit plate (12) are provided with a contraction opening from right to left.

3. The pallet detection and identification device for an outbound conveyor line of an AGV as described in claim 1, characterized in that: The front-side positioning sensor photoelectric switch (19) is mounted on the front-side positioning sensor photoelectric switch mounting bracket (14), and the rear-side positioning sensor photoelectric switch (24) is mounted on the rear-side positioning sensor photoelectric switch mounting bracket (25).

4. The pallet detection and identification device for an outbound conveyor line of a docking AGV according to claim 1, characterized in that: The pallet detection and identification grating sensor includes a transmitter and a receiver, which are respectively installed on the front and rear sides of the detection and identification chain conveyor (4).

5. The pallet detection and identification device for an outbound conveyor line of an AGV as described in claim 4, characterized in that: The transmitter is fixed on the transmitter mounting bracket, and the receiver is fixed on the receiver mounting bracket. Both the transmitter mounting bracket and the receiver mounting bracket are fixed on the side of the detection and identification chain conveyor (4).

6. The pallet detection and identification device for an outbound conveyor line of a docking AGV according to claim 1, characterized in that: The detection and identification chain conveyor (4) is equipped with two tray detection and identification grating sensors: a left tray detection and identification grating sensor and a right tray detection and identification grating sensor.

7. The pallet detection and identification device for an outbound conveyor line of a docking AGV according to claim 1, characterized in that: The unloading mechanism also includes a front unloading guide limit plate (8) and a rear unloading guide limit plate (6). The front unloading guide limit plate (8) and the rear unloading guide limit plate (6) are respectively provided on the front and rear sides of the unloading chain conveyor (2). The front unloading guide limit plate (8) is connected to the front identification guide limit plate (13), and the rear unloading guide limit plate (6) is connected to the rear identification guide limit plate (12). The length of the front unloading guide limit plate (8) is shorter than the length of the rear unloading guide limit plate (6).

8. The pallet detection and identification device for an outbound conveyor line of a docking AGV according to claim 7, characterized in that: Both the front unloading guide limit plate (8) and the rear unloading guide limit plate (6) have a contraction opening from right to left on their right ends.

9. The pallet detection and identification device for an outbound conveyor line of a docking AGV according to claim 1, characterized in that: The front unloading position sensor photoelectric switch (11) is mounted on the front unloading position sensor photoelectric switch mounting bracket (7), and the rear unloading position sensor photoelectric switch (9) is mounted on the rear unloading position sensor photoelectric switch mounting bracket (10).

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