Automatic unstacking tray machine

Abstract

The utility model discloses an automatic unstacking tray machine which comprises a tray frame, a discharging conveying belt and a jacking device, and an adjustable guide rod is arranged on the inner side of the tray frame. The head end of the discharging conveying belt is arranged on the lower portion of the tray frame. The jacking device is arranged below the section, located in the tray frame, of the discharging conveying belt. The proximity sensor, the driving mechanism and the chuck mechanism are installed on the tray frame, accurate positioning and separation of trays are achieved, the whole unstacking process is high in automation degree, manual intervention is reduced, and labor intensity is lowered; meanwhile, the distance between the guide rods in the tray rack can be conveniently adjusted by adjusting the positioning holes through which the positioning pins penetrate, so that the tray rack is adaptive to trays with different sizes, the tray rack can process the trays with various specifications, the flexibility of equipment is greatly improved, and the application range of the equipment is greatly widened.

Description

Technical Field

[0001] The utility model relates to the technical field of pallet conveying, in particular to an automatic pallet depalletizing machine. Background Art

[0002] As an important logistics tool, pallet is widely used in the loading and unloading, transportation, storage and distribution of goods. With the continuous expansion of logistics scale and the increasing number of material types, the specifications of pallets are also showing a diversified trend. This leads to the poor applicability, cumbersome operation and low efficiency of traditional pallet warehouses and depalletizing methods when facing pallets of different sizes. At the same time, the logistics industry has an increasingly urgent demand for automation, intelligence and efficiency. The traditional manual depalletizing method can no longer meet the large-scale and high-efficiency logistics needs. Therefore, it is necessary to provide a pallet depalletizer that can adapt to pallets of different sizes and has efficient and automated depalletizing functions. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical deficiencies, to provide an automatic pallet depalletizing machine, and to solve the technical problems raised in the background technology.

[0004] In order to achieve the above technical objectives, the technical solution of the utility model provides an automatic depalletizing machine, comprising: a pallet rack, a discharging conveyor belt and a lifting device, wherein an adjustable guide rod is arranged on the inner side of the pallet rack; the head end of the discharging conveyor belt is arranged at the lower part of the pallet rack; the lifting device is arranged below a section of the discharging conveyor belt inside the pallet rack; a positioning mechanism is arranged inside the pallet rack, and a driving mechanism and two symmetrical chuck mechanisms are arranged on the outer side of the pallet rack, the positioning mechanism outputs a control signal to the driving mechanism, and the driving mechanism is connected to the input ends of the two chuck mechanisms to drive their locking tongues to synchronously retract and extend into the side support grooves of the pallet.

[0005] Furthermore, the chuck mechanism includes a chuck bracket, a slide is provided on the upper part of the chuck bracket, a locking tongue is slidably provided on the slide, a rotating shaft is provided on the lower part of the chuck bracket, a push rod is provided on the rotating shaft, a sliding groove is provided on the push rod, a through hole is provided on the locking tongue, a push shaft is provided in the through hole, the upper end of the push rod is provided in the through hole, and the push shaft is provided in the sliding groove.

[0006] Furthermore, the driving mechanism includes a rotating cylinder, a rotating block is provided on the output shaft of the rotating cylinder, a crank arm is provided at the end of the rotating shaft, a connecting rod is provided between the crank arm and the rotating block, one end of the crank arm is fixedly connected to the rotating shaft, and the other end is hinged to the connecting rod, and the other end of the connecting rod is rotatably connected to the rotating block.

[0007] Furthermore, the positioning mechanism includes a positioning plate arranged on the pallet rack, a plurality of proximity sensors are arranged on the positioning plate in the vertical direction, and a baffle is arranged on the lifting plate of the jacking device, and the baffle is directly opposite to the positioning plate.

[0008] Furthermore, a positioning seat is provided on the guide rod, a plurality of positioning holes are provided on the positioning seat, and a positioning pin is provided on the side cross bar of the pallet rack, and the positioning pin passes through the side cross bar of the pallet rack and the positioning hole.

[0009] Compared with the prior art, the beneficial effects of the utility model include:

[0010] 1. The utility model realizes accurate positioning and separation of the pallet through the combination of a proximity sensor, a drive mechanism and a chuck mechanism. The proximity sensor can quickly detect the position of the pallet, and the drive mechanism drives the locking tongue of the chuck mechanism to synchronously insert or withdraw the pallet side support groove, thereby realizing automatic separation of the pallet. The entire depalletizing process has a high degree of automation, which reduces manual intervention and labor intensity. At the same time, by adjusting the positioning hole through which the positioning pin passes, the spacing of the guide rods in the pallet rack can be conveniently adjusted to adapt to pallets of different sizes, so that the utility model can handle pallets of various specifications, greatly improving the flexibility and application range of the equipment.

[0011] 2. The design of the chuck mechanism of the utility model adopts components such as a slide, a lock tongue, a push shaft, a rotating shaft and a push rod. The cooperation between these components enables the lock tongue to be smoothly inserted into and pulled out of the side support groove of the tray. At the same time, the driving mechanism adopts components such as a rotary cylinder, a rotary block, a crank arm and a connecting rod. The swing of the crank arm is achieved through the rotation of the rotary cylinder, and then the action of the lock tongue is driven, ensuring the stable operation and reliable performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of an automatic pallet depalletizing machine provided by the utility model;

[0013] Figure 2 The utility model is a schematic diagram of a chuck mechanism of an automatic pallet depalletizing machine.

[0014] In the figure: pallet rack 1, discharge conveyor belt 2, lifting device 3, chuck mechanism 4, chuck bracket 401, slide 402, lock tongue 403, rotating shaft 404, push rod 405, slide groove 406, through hole 407, push shaft 408, rotating cylinder 409, rotating block 410, crank arm 411 connecting rod 412, guide rod 5, positioning seat 501, positioning pin 502, positioning plate 6, proximity sensor 7. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] Reference Figure 1 The utility model provides an automatic depalletizing machine, comprising a pallet rack 1, a discharging conveyor belt 2 and a lifting device 3. A guide rod 5 is installed on the inner side of the pallet rack 1, a positioning seat 501 is installed on the guide rod 5, and a plurality of positioning holes are opened on the positioning seat 501. A positioning pin 502 is installed on the side cross bar of the pallet rack 1. The positioning pin 502 passes through the side cross bar and the positioning hole of the pallet rack 1 so as to install the guide rod 5 on the pallet rack 1. The spacing of the guide rods 5 in the pallet rack 1 can be adjusted by adjusting the positioning hole through which the positioning pin 502 passes, so as to adapt to pallets of different sizes.

[0017] The head end of the discharge conveyor belt 2 is installed at the lower part of the pallet rack 1; the jacking device is installed below a section of the discharge conveyor belt 2 inside the pallet rack 1; a driving mechanism and two symmetrical chuck mechanisms 4 are installed on the outer side of the pallet rack 1, and the driving mechanism is connected to the input ends of the two chuck mechanisms 4. A positioning plate 6 is installed on the pallet rack 1, and a plurality of proximity sensors 7 are installed on the positioning plate 6 in the vertical direction. A baffle is installed on the lifting plate of the jacking device 3, and the baffle is directly opposite to the positioning plate 6.

[0018] When the pallet needs to be taken out, the lifting device 3 first rises until its lifting plate is in close contact with the lower end of the pallet stack; then, the lifting plate continues to rise until the baffle on it is completely aligned with the proximity sensor 7 installed on the upper part of the positioning plate 6; at this time, the proximity sensor 7 will quickly send a signal to the drive mechanism, and the drive mechanism drives the chuck mechanism 4 to synchronously pull its locking tongue out of the side support groove of the pallet.

[0019] Then, the lifting plate of the jacking device begins to descend; when the side support grooves of the pallets stacked above the pallets on the lifting plate are completely aligned with the locking tongues of the chuck mechanism 4, the baffle installed on the lifting plate will be aligned with the proximity sensor 7 installed at the bottom of the positioning plate 6; at this time, the locking tongues of the two chuck mechanisms will extend synchronously and accurately insert into the side support grooves of the pallets, thereby successfully separating the pallet at the bottom of the pallet stack.

[0020] Finally, the lifting device 3 continues to descend, and the pallet on it is stably placed on the discharge conveyor belt 2, and transferred to other processes for further processing.

[0021] Reference Figure 2The chuck mechanism 4 includes a chuck bracket 401 installed on the outside of the tray rack 1, a slide 402 is installed on the upper part of the chuck bracket 401, a lock tongue 403 is slidably installed on the slide 402, a through hole 407 is opened on the lock tongue 403, and a push shaft 408 is installed in the through hole 407; a rotating shaft 404 is installed at the lower part of the chuck bracket 401, a push rod 405 is installed on the rotating shaft 404, the lower end of the push rod 405 is fixedly connected to the rotating shaft 404, and a slide groove 406 is opened on the upper end, the upper end of the push rod 405 passes through the through hole 407, and the push shaft 408 is installed in the slide groove 406.

[0022] The driving mechanism includes a rotating cylinder 409, a rotating block 410 is installed on the output shaft of the rotating cylinder 409, a crank arm 411 is installed at the end of the rotating shaft 404, a connecting rod 412 is installed between the crank arm 411 and the rotating block 410, one end of the crank arm 411 is fixedly connected to the rotating shaft 404, and the other end is hinged to the connecting rod 412, and the other end of the connecting rod 412 is rotatably connected to the rotating block 410.

[0023] The rotary cylinder 409 drives the rotary block 410 to rotate so that the upper ends of the two curved arms 411 move closer to or farther from each other, thereby driving the opposite locking tongues 403 on the two chuck mechanisms 4 to be synchronously inserted into or pulled out of the side support grooves of the tray.

[0024] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An automatic pallet depalletizing machine, comprising: A pallet rack, wherein an adjustable guide rod is disposed on the inner side of the pallet rack; A discharging conveyor belt, wherein the head end of the discharging conveyor belt is arranged at the lower part of the pallet rack; A lifting device, the lifting device is arranged below a section of the discharge conveyor belt inside the pallet rack; The feature is that a positioning mechanism is provided inside the tray rack, a driving mechanism and two symmetrical chuck mechanisms are provided outside the tray rack, the positioning mechanism outputs a control signal to the driving mechanism, the driving mechanism is connected to the input ends of the two chuck mechanisms to drive their locking tongues to synchronously extend and retract into the side support grooves of the tray.

2. The automatic depalletizing machine according to claim 1, characterized in that: The chuck mechanism includes a chuck bracket, a slide is provided on the upper part of the chuck bracket, a lock tongue is slidably provided on the slide, a rotating shaft is provided on the lower part of the chuck bracket, a push rod is provided on the rotating shaft, a slide groove is provided on the push rod, a through hole is provided on the lock tongue, a push shaft is provided in the through hole, the upper end of the push rod is provided in the through hole, and the push shaft is provided in the slide groove.

3. The automatic depalletizing machine according to claim 2, characterized in that: The driving mechanism includes a rotating cylinder, a rotating block is arranged on the output shaft of the rotating cylinder, a crank arm is arranged at the end of the rotating shaft, a connecting rod is arranged between the crank arm and the rotating block, one end of the crank arm is fixedly connected to the rotating shaft, and the other end is hinged to the connecting rod, and the other end of the connecting rod is rotatably connected to the rotating block.

4. An automatic depalletizing machine according to claim 2 or 3, characterized in that: The positioning mechanism comprises a positioning plate arranged on the pallet rack, a plurality of proximity sensors are arranged on the positioning plate in a vertical direction, and a baffle is arranged on the lifting plate of the jacking device, and the baffle is directly opposite to the positioning plate.

5. The automatic depalletizing machine according to claim 4, characterized in that: The guide rod is provided with a positioning seat, and the positioning seat is provided with a plurality of positioning holes. The side cross bar of the pallet rack is provided with a positioning pin, and the positioning pin passes through the side cross bar of the pallet rack and the positioning holes.

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