Tray discharging device

Abstract

The utility model relates to the technical field of tray blanking, and particularly discloses a tray blanking device which is characterized in that when stacked trays need to be transferred and used one by one, the whole stack of the stacked trays are forked and conveyed into a blanking frame by a forklift, the whole stack of the trays are supported by a lifting air cylinder, then the lifting air cylinder slowly descends, and the tray blanking device is used for blanking the trays. Then, the transverse air cylinder is driven to extend into the last but one tray at the bottommost part and supports all the stacked trays, so that the trays at the upper part do not descend along with the lifting air cylinder any more, and only the tray at the bottommost part descends along with the lifting air cylinder at the moment; and at the moment, the transmission device drives the push plate to enable the push plate to push the bottommost tray forwards, so that the trays are discharged one by one from the whole stack, the working efficiency is improved, and safety accidents are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tray unloading, in particular to a tray unloading device. Background Art

[0002] Pallets are stacked when not in use, but they need to be moved one by one when in use. Since pallets are stacked in stacks, they can only be taken from top to bottom in operation. Currently, forklifts are generally used to transport pallets from top to bottom in sequence. However, since pallets are stacked to a certain height, the stacks of pallets may shake and collapse during forklift transportation, which may cause unnecessary safety accidents.

[0003] The technical problem to be solved by this application is to design a pallet unloading device that can facilitate the unloading and transportation of pallets. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a pallet unloading device that can facilitate the unloading and transportation of pallets.

[0005] The technical solution adopted by the utility model is: a pallet unloading device, including a conveying frame and a unloading frame arranged above the conveying frame, the conveying frame is provided with a plurality of lifting cylinders for supporting the unloading of the pallet corresponding to the unloading frame, the unloading frame is provided with a plurality of transverse cylinders for controlling the unloading of the pallet one by one, and the conveying frame is also provided with a push plate for pushing the pallet to unload the material and a transmission device for driving the push plate to move.

[0006] In some embodiments, the conveying frame includes a unloading end and a transfer end. The unloading frame is arranged at the unloading end. The unloading frame is a U-shaped frame. The unloading frame is provided with a feeding port.

[0007] In some embodiments, the driving end of the lifting cylinder is provided with a support plate transmission-connected thereto, and the driving end of the transverse cylinder is provided with a supporting plate transmission-connected thereto.

[0008] In some embodiments, the conveyor frame is provided with a first sensing device at the unloading end for sensing whether there is a pallet, and the first sensing device includes a first infrared sensor, and the first infrared sensor is arranged opposite to each other on both sides of the conveyor frame.

[0009] In some embodiments, the transmission device includes a rotating motor fixedly mounted on the conveying frame and a first sprocket rotatably connected to the conveying frame, and the rotating motor is drivingly connected to the first sprocket.

[0010] In some embodiments, the conveying frame is further provided with a second sprocket, a rotating chain is sleeved between the first sprocket and the second sprocket, and the push plate is fixedly connected to the rotating chain.

[0011] In some embodiments, a second sensing device is further provided at the transfer end of the conveying rack. The second sensing device includes second infrared sensors oppositely arranged at the transfer end.

[0012] In some embodiments, a cross beam is provided at the bottom of the blanking frame. The distance between the cross beam and the conveying rack is greater than the thickness of the pallet. The distance between the cross beam and the conveying rack forms a discharge port.

[0013] In some embodiments, a guiding slide rail is further provided on the conveying rack, and the rotating chain is in limit fit with the guiding slide rail.

[0014] The utility model has the following technical effects: By providing a blanking frame on the conveying rack, a lifting cylinder corresponding to the blanking frame on the conveying rack, a transverse cylinder on the blanking frame, and a pushing plate on the conveying rack. When it is necessary to transfer the stacked pallets one by one for use, first, the whole stack of pallets is forklifted into the blanking frame by a forklift, and the whole stack of pallets is supported by the lifting cylinder. Then the lifting cylinder slowly descends. Subsequently, the transverse cylinder drives and extends into the second-to-last pallet from the bottom and supports and holds all the stacked pallets above, so that the upper pallets no longer follow the lifting cylinder to descend. At this time, only the bottommost pallet follows the lifting cylinder to descend. When the lifting cylinder descends in place, the transmission device drives the pushing plate at this time, so that the pushing plate pushes the bottommost pallet forward, thereby completing the individual blanking of the pallet from the whole stack. After the bottommost pallet is pushed by the pushing plate, the lifting cylinder rises again to support all the upper pallets, and the transverse cylinder retracts. All the pallets are supported by the lifting cylinder again and descend. When descending by the height of one pallet, the transverse cylinder extends into the existing second-to-last pallet again, only allowing the lifting cylinder to drive the existing bottommost pallet to descend. Subsequently, the pushing plate is used again to push the bottommost pallet that has descended in place forward, so as to ensure that the left and right workstations can be connected when unstacking the pallets. By circulating in turn, the individual unstacking and blanking transfer of the whole stack of pallets is completed, thereby improving work efficiency and reducing the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the pallet blanking device of the utility model;

[0016] Figure 2 is a schematic structural diagram of the pallet blanking device of the utility model;

[0017] Figure 3 is of the pallet blanking device of the utility model Figure 3 schematic diagram of partial structure A;

[0018] Figure 4 is a schematic structural diagram of the pallet blanking device of the utility model.

[0019] The reference numerals in the figure correspond to the names as follows: 1. Conveyor rack; 2. Discharge hopper; 3. Lifting cylinder; 4. Transverse cylinder; 5. Pusher plate; 10. Discharge end; 11. Transfer end; 20. Inlet; 30. Support plate; 40. Pallet; 101. First infrared sensor; 12. Rotating motor; 13. First sprocket; 14. Second sprocket; 15. Rotating chain; 110. Second infrared sensor; 21. Cross beam; 22. Outlet; 16. Guide slide rail; 6. Tray. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4, the present utility model provides a technical solution: a pallet blanking device, which includes a conveying frame 1 and a blanking frame 2 arranged above the conveying frame 1. The conveying frame 1 includes a blanking end 10 and a transfer end 11, and the blanking frame 2 is arranged corresponding to the blanking end 10. And the blanking frame 2 is a U-shaped frame, so an inlet 20 is formed on one side of the blanking frame 2, which is convenient for a forklift to fork and place a stack of pallets 6 into the blanking frame 2. A plurality of lifting cylinders 3 for supporting the blanking of the pallets 6 are arranged on the conveying frame 1 corresponding to the blanking frame 2. A plurality of transverse cylinders 4 for controlling the blanking of the pallets 6 one by one are arranged on the blanking frame 2. A push plate 5 for pushing the pallets 6 out of the material and a transmission device for driving the movement of the push plate 5 are also arranged on the conveying frame 1. When it is necessary to transfer a stack of pallets 6 one by one for use, first, the stack of pallets 6 is forked into the blanking frame 2 by a forklift, and the stack of pallets 6 is supported by the lifting cylinders 3. Then the lifting cylinders 3 slowly descend. Subsequently, the transverse cylinders 4 drive and extend into the second-to-last pallet 6 from the bottom and support and hold all the stacked pallets 6 above, so that the upper pallets 6 no longer follow the lifting cylinders 3 to descend. At this time, only the bottommost pallet 6 follows the lifting cylinders 3 to descend. When the lifting cylinders 3 descend in place, at this time, the transmission device drives the push plate 5, so that the push plate 5 pushes the bottommost pallet 6 forward, so as to push the bottommost pallet 6 to the transfer end 11 by the push plate 5, and then it is forked and transferred by a forklift, so that the pallets 6 are blanked one by one from the stack, and the bottommost pallet 6 is pushed by the push plate 5. After that, the transmission device drives the push plate 5 to reset. At this time, the lifting cylinders 3 rise again to support all the upper pallets 6, and the transverse cylinders 4 retract. All the pallets 6 are supported by the lifting cylinders 3 and descend again. When descending by the height of one pallet 6, at this time, the transverse cylinders 4 extend into the second-to-last pallet 6 again, and only the lifting cylinders 3 drive the bottommost pallet 6 to descend. Subsequently, the push plate 5 is used again to push the bottommost pallet 6 that has descended in place forward to the transfer end 11. By circulating in turn, the blanking and transfer of a stack of pallets 6 one by one are completed, thereby improving work efficiency and reducing the occurrence of safety accidents.

[0022] A support plate 30 is provided at the driving end of the lifting cylinder 3 and is in transmission connection with it. A support plate 40 is provided at the driving end of the transverse cylinder 4 and is in transmission connection with it. By providing the support plate 30, the lifting cylinder 3 is more stable when supporting and descending the pallet 6. And by providing the support plate 40, it can extend deeper into the pallet 6 and can better support the pallet 6. And there are four lifting cylinders 3 and four transverse cylinders 4, so as to ensure the stability of the descent or support of the pallet 6.

[0023] At the discharging end 10 of the conveying rack 1, a first sensing device is provided. The first sensing device includes a first infrared sensor 101. The first infrared sensors 101 are arranged oppositely on both sides of the conveying rack 1. By arranging the first infrared sensors 101 oppositely on both sides of the conveying rack 1, when the whole stack of pallets 6 is held by the lifting cylinder 3 and descends, if the descending height of the pallet 6 can be sensed by the first infrared sensor 101, at this time, the first infrared sensor 101 will send a signal to control the transverse cylinder 4 to drive the pallet 40 to extend into the second last pallet 6, so as to hold all the pallets 6 above and prevent them from continuing to descend following the lifting cylinder 3. When the push plate 5 pushes away the lowermost pallet 6, at this time, the first infrared sensor 101 senses that there is no pallet 6, and then it will send a signal to the lifting cylinder 3 and the transverse cylinder 4 again. The lifting cylinder 3 rises again to hold the pallet 6 and descend, while the transverse cylinder 4 retracts until the next pallet 6 descends to the specified height again. At this time, the transverse cylinder 4 will drive the pallet 40 to extend into the existing second last pallet 6 again. The conveying rack 1 is also provided with a second sensing device at the transfer end 11. The second sensing device includes second infrared sensors 110 arranged oppositely at the transfer end 11. The second infrared sensors 110 can sense whether there is a pallet 6 at the transfer end 11, so as to send corresponding signal prompts to transfer the pallet 6 in time. Moreover, a plurality of first infrared sensors 101 and second infrared sensors 110 are equidistantly arranged. The signal trigger must wait until the inductions of the first infrared sensor 101 and the second infrared sensor 110 all meet the same state before it can be triggered, so as to avoid working mistakes caused by misreported signals.

[0024] The transmission device includes a rotating motor 12 fixedly installed on the conveying rack 1 and a first sprocket 13 rotatably connected to the conveying rack 1. The rotating motor 12 is in transmission connection with the first sprocket 13. The conveying rack 1 is also provided with a second sprocket 14. The second sprocket 14 is arranged at the front end of the transfer end 11. A rotating chain 15 is sleeved between the first sprocket 13 and the second sprocket 14 (the rotating chain 15 is not fully drawn in the attached drawing, only showing its partial connection schematic diagram with the push plate 5). The rotating chain 15 is meshed and driven between the first sprocket 13 and the second sprocket 14 respectively. The push plate 5 is fixedly connected to the rotating chain 15. The rotating motor 12 drives the first sprocket 13 to rotate, thereby driving the rotating chain 15 to rotate, and further driving the push plate 5 to move forward to push the pallet 6.

[0025] In order to facilitate the push plate 5 to push the pallet 6 forward for discharging, a cross beam 21 is provided at the bottom of the discharging frame 2. The distance between the cross beam 21 and the conveying rack 1 is greater than the thickness of the pallet 6, so that the distance between the cross beam 21 and the conveying rack 1 forms a discharging port 22.

[0026] In order to prevent the rotating chain 15 from having insufficient bearing capacity and causing the push plate 5 to be unable to stably push the tray 6, a guiding slide rail 16 is further provided on the conveying rack 1. The rotating chain 15 is in limiting sliding fit with the guiding slide rail 16, and the guiding slide rail 16 gives a supporting force to the rotating chain 15.

[0027] The working principle of the present utility model: By providing a blanking frame 2 on the conveying rack 1, a lifting cylinder 3 corresponding to the blanking frame 2 on the conveying rack 1, a transverse cylinder 4 on the blanking frame 2, and a push plate 5 on the conveying rack 1. When it is necessary to transfer the stacked trays 6 one by one for use, first, the entire stacked trays 6 are forklifted into the blanking frame 2 by a forklift, and the entire stack of trays 6 is supported by the lifting cylinder 3. Then the lifting cylinder 3 slowly descends. Subsequently, the transverse cylinder 4 drives and extends into the second-to-last tray 6 at the bottom and supports and holds all the stacked trays 6 above, so that the upper trays 6 no longer follow the lifting cylinder 3 to descend. At this time, only the bottommost tray 6 follows the lifting cylinder 3 to descend. When the lifting cylinder 3 descends in place, at this time, the transmission device drives the push plate 5, so that the push plate 5 pushes the bottommost tray 6 forward, so that the tray 6 completes the individual blanking from the entire stack. After the bottommost tray 6 is pushed by the push plate 5, at this time, the lifting cylinder 3 rises again to support all the upper trays 6, and the transverse cylinder 4 retracts. All the trays 6 are supported by the lifting cylinder 3 and descend again. When descending by the height of one tray 6, at this time, the transverse cylinder 4 extends into the existing second-to-last tray 6 again, and only the lifting cylinder 3 drives the existing bottommost tray 6 to descend. Subsequently, the push plate 5 is used again to push the bottommost tray 6 that has descended in place forward, so as to ensure that the left and right workstations can be connected when the trays 6 are unstacked. By circulating in sequence, the individual unstacking and blanking transfer of the entire stacked trays 6 is completed, thereby improving work efficiency and reducing the occurrence of safety accidents.

[0028] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tray unloading device, characterized in that: It includes a conveying frame and a material unloading frame arranged above the conveying frame, the conveying frame is provided with a plurality of lifting cylinders for supporting the unloading of pallets corresponding to the material unloading frame, the material unloading frame is provided with a plurality of transverse cylinders for controlling the unloading of pallets one by one, the conveying frame is also provided with a push plate for pushing the pallet to unload the material and a transmission device for driving the push plate to move.

2. The pallet unloading device according to claim 1, characterized in that: The conveying frame includes a unloading end and a transfer end. The unloading frame is arranged at the unloading end. The unloading frame is a U-shaped frame. The unloading frame is provided with a feeding port.

3. The pallet unloading device according to claim 1, characterized in that: The driving end of the lifting cylinder is provided with a supporting plate which is transmission-connected thereto, and the driving end of the transverse cylinder is provided with a supporting plate which is transmission-connected thereto.

4. The tray unloading device according to claim 2, characterized in that: The conveyor frame is provided with a first sensing device at the unloading end for sensing whether there is a tray, and the first sensing device includes a first infrared sensor, and the first infrared sensor is arranged opposite to each other on both sides of the conveyor frame.

5. The pallet unloading device according to claim 1, characterized in that: The transmission device comprises a rotating motor fixedly mounted on the conveying frame and a first sprocket rotatably connected to the conveying frame, and the rotating motor is transmission-connected to the first sprocket.

6. The pallet unloading device according to claim 5, characterized in that: The conveying frame is also provided with a second sprocket, a rotating chain is sleeved between the first sprocket and the second sprocket, and the push plate is fixedly connected to the rotating chain.

7. The tray unloading device according to claim 2, characterized in that: The conveyor frame is further provided with a second sensing device at the transfer end, and the second sensing device includes a second infrared sensor arranged opposite to the transfer end.

8. The pallet unloading device according to claim 1, characterized in that: A crossbeam is provided at the bottom of the unloading frame, and the distance between the crossbeam and the conveying frame is greater than the thickness of the tray, and the distance between the crossbeam and the conveying frame forms a discharge port.

9. The tray unloading device according to claim 6, characterized in that: The conveying frame is also provided with a guide rail, and the rotating chain is limitedly matched with the guide rail.

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