Automatic PET plate stacking device

Abstract

The utility model relates to an automatic PET (polyethylene terephthalate) plate stacking device applied to the field of stacking devices, which comprises a clamping transverse plate arranged at the output end of a mechanical stacking grabbing arm, a plurality of suction vertical rods fixedly connected to the lower end of the clamping transverse plate, negative pressure suckers fixedly connected to the lower ends of the suction vertical rods, a plurality of electric guide rails fixedly connected to the lower end of the clamping transverse plate, and a plurality of lifting rods fixedly connected to the lower end of the electric guide rails. The output end of the electric guide rail is fixedly connected with a limiting fence vertical rod, a storage bottom plate is arranged below the clamping transverse plate in a matched mode, a plurality of corresponding groove openings are formed in the upper end of the storage bottom plate, and an auxiliary stabilizing mechanism is used for accurately and stably assisting in positioning and framing a plate body in the clamping and discharging process; the problem that the plate bodies are too thin to generate reverse displacement tendency during blanking is effectively solved, so that each layer of plate bodies can be tidily stacked in a specified range on the storage bottom plate according to a preset standard, and the tidiness and the stability of stacking are greatly improved.

Description

Technical Field

[0001] The utility model relates to a palletizing device, in particular to an automatic PET sheet palletizing device applied to the field of palletizing devices. Background Art

[0002] In modern industrial production, PET sheets are increasingly widely used, and their production scale is also constantly expanding. The automatic PET sheet palletizing device plays an extremely important role in improving production efficiency and optimizing the logistics link. The automatic PET sheet palletizing device mainly relies on the clamping function of the robotic arm to achieve the handling and stacking of the sheets.

[0003] The specification of Chinese Patent CN218841004U discloses an automatic PET sheet palletizing device, including a main frame. At both ends above one side of the main frame, pulley wheels are rotatably installed, and the two pulley wheels are connected by a belt. In this utility model, by starting a vacuum pump, the suction cup sucks the PET sheet, and then through a first motor and a one-way lead screw, the PET sheet is moved to directly above the placement table. Subsequently, controlling the second motor to drive the one-way lead screw to rotate causes the PET sheet to move downward, and then turning off the vacuum pump causes the PET sheet to be separated from the suction cup and placed on the palletizing fork plate. In this way, manual participation is avoided, and the palletizing efficiency is effectively improved.

[0004] However, it is found in the actual production process that when the thickness of the PET sheet to be processed is relatively thin, due to the relatively weak rigidity of the thin sheet itself, when the robotic arm clamps the sheet for blanking operation, the combined action of the clamping force applied by the robotic arm and the inertial force during the blanking process makes the sheet extremely prone to reverse displacement tendency, resulting in the sheet being unable to be accurately placed at the predetermined stacking position, and ultimately causing the overall stacking effect of the sheets to be not neat enough. This not only destroys the aesthetics of the palletizing, but also increases the risk during transportation. Therefore, it is necessary to design an automatic PET sheet palletizing device with a stabilizing mechanism to solve the above problems. Summary of the Invention

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present utility model is that due to the relatively weak rigidity of the thin sheet itself, when the robotic arm clamps the sheet for blanking operation, the combined action of the clamping force applied by the robotic arm and the inertial force during the blanking process makes the sheet extremely prone to reverse displacement tendency, resulting in the sheet being unable to be accurately placed at the predetermined stacking position.

[0006] In order to solve the above problems, the utility model provides an automatic stacking device for PET sheets, comprising a clamping horizontal plate arranged at the output end of a stacking mechanical grabber arm, the lower end of the clamping horizontal plate is fixedly connected to a plurality of material suction vertical rods, the lower ends of the material suction vertical rods are fixedly connected to a negative pressure suction cup, the lower end of the clamping horizontal plate is fixedly connected to a plurality of electric guide rails, the output ends of the electric guide rails are fixedly connected to the limiting enclosure vertical rods, a storage bottom plate is provided below the clamping horizontal plate, a plurality of corresponding groove openings are provided at the upper end of the storage bottom plate, the plurality of corresponding groove openings cooperate with the plurality of limiting enclosure vertical rods, the lower end of the limiting enclosure vertical rod is fixedly connected to a signal transmitter, the lower inner walls of the corresponding groove openings are fixedly connected to a plurality of signal receivers, the plurality of signal receivers are horizontally arranged, and the plurality of corresponding groove openings cooperate with the corresponding signal transmitters.

[0007] In the above-mentioned automatic stacking device for PET sheets, the auxiliary stabilizing mechanism is used to accurately and stably assist in positioning the sheet body during the clamping and unloading process, effectively overcoming the problem of reverse displacement tendency during unloading due to the sheet body being too thin, so that each layer of the sheet body can be neatly stacked in the designated range on the storage bottom plate according to the preset standards, greatly improving the neatness and stability of the stacking.

[0008] As a further improvement of the present application, a plurality of plate bodies are vertically stacked on the upper end of the storage bottom plate, and the plate bodies are located between a plurality of limiting enclosure vertical rods.

[0009] As a further improvement of the present application, the position-limiting enclosure vertical rod includes an outer sleeve rod located on the upper side, and the upper inner wall of the outer sleeve rod is fixedly connected to a spring telescopic member.

[0010] As a further improvement of the present application, the lower end of the spring telescopic member is fixedly connected to a sliding inner rod, and the sliding inner rod and the limiting enclosure vertical rod are slidably connected to each other.

[0011] As another improvement of the present application, vertical matching rods are symmetrically fixedly connected to the left and right sides of the lower end of the clamping horizontal plate, and a bar-shaped rotating shaft is fixedly connected between the two vertical matching rods.

[0012] As another improved supplement of the present application, the outer end of the strip-shaped rotating shaft is fixedly connected to a bulletproof block, and the strip-shaped rotating shaft is externally connected to a motor.

[0013] As another improved supplement of the present application, an electric turntable is installed at one end of the palletizing robot gripping arm away from the clamping horizontal plate, and the lower end of the electric turntable is fixedly connected to a stable base.

[0014] In summary, during the process of the clamping cross plate clamping the material, according to the size range of the plate body, the position of the limiting enclosure vertical rod can be adjusted through the material suction vertical rod, so that when the clamping cross plate clamps the plate body, multiple limiting enclosure vertical rods can displace to the outer side range of the plate body. When the limiting enclosure vertical rod follows the clamping cross plate and moves above the storage bottom plate, the signal receiver at the corresponding position is turned on, and the limiting enclosure vertical rod is docked with the corresponding position signal transmitter to obtain the blanking signal. This method can make the blanking position of the clamping cross plate more stable. Through the auxiliary stabilizing mechanism, a precise and stable auxiliary positioning enclosure is carried out for the plate body during the clamping and blanking processes, effectively overcoming the problem of the reverse displacement tendency of the plate body during blanking due to the too thin thickness of the plate body, so that each layer of the plate body can be neatly stacked within the specified range on the storage bottom plate according to the preset standard, greatly improving the stacking neatness and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Isometric view of the palletizing mechanical gripper arm according to the first embodiment of the present application;

[0016] Figure 2 Enlarged view of the clamping cross plate according to the first embodiment of the present application;

[0017] Figure 3 Clamping state diagram of the clamping cross plate according to the first embodiment of the present application;

[0018] Figure 4 For the first embodiment of the present application Figure 3 Partial truncated enlarged view in;

[0019] Figure 5 Side sectional view of the limiting enclosure vertical rod according to the first embodiment of the present application;

[0020] Figure 6 Side view of the clamping cross plate according to the second embodiment of the present application;

[0021] Figure 7 For the second embodiment of the present application Figure 6 Enlarged view of the pressing anti-bullet block in.

[0022] Description of the reference numerals in the drawings:

[0023] 1. Storage bottom plate; 2. Clamping cross plate; 3. Material suction vertical rod; 4. Negative pressure suction cup; 5. Electric guide rail; 6. Corresponding groove opening; 7. Limiting enclosure vertical rod; 8. Signal transmitter; 9. Sliding inner rod; 10. Spring telescopic member; 11. Vertical mating rod; 12. Strip-shaped rotating shaft; 13. Pressing anti-bullet block; 14. Stable base; 15. Palletizing mechanical gripper arm; 16. Electric turntable; 17. Signal receiver; 18. Outer sleeve rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe two implementation manners of the present application in detail with reference to the accompanying drawings.

[0025] The first implementation manner:

[0026] Figures 1-5 There is shown an automatic palletizing device for PET sheets, including a clamping cross plate 2 provided at the output end of a palletizing mechanical gripper 15. A plurality of suction vertical rods 3 are fixedly connected to the lower end of the clamping cross plate 2. A negative pressure suction cup 4 is fixedly connected to the lower end of the suction vertical rod 3. A plurality of electric guide rails 5 are fixedly connected to the lower end of the clamping cross plate 2. A limiting enclosure vertical rod 7 is fixedly connected to the output end of the electric guide rail 5. A storage bottom plate 1 is arranged below the clamping cross plate 2. A plurality of corresponding groove openings 6 are provided in the upper end of the storage bottom plate 1. The plurality of corresponding groove openings 6 cooperate with the plurality of limiting enclosure vertical rods 7. A signal transmitter 8 is fixedly connected to the lower end of the limiting enclosure vertical rod 7. A plurality of signal receivers 17 are fixedly connected to the lower inner wall of the corresponding groove opening 6. The plurality of signal receivers 17 are horizontally arranged. The plurality of corresponding groove openings 6 cooperate with the corresponding signal transmitters 8.

[0027] Figures 1-5 There is shown that a plurality of sheet bodies are vertically stacked on the upper end of the storage bottom plate 1. The sheet bodies are located between the plurality of limiting enclosure vertical rods 7. The limiting enclosure vertical rod 7 includes an outer sleeve rod 18 on the upper side. A spring telescopic member 10 is fixedly connected to the upper inner wall of the outer sleeve rod 18. A sliding inner rod 9 is fixedly connected to the lower end of the spring telescopic member 10. The sliding inner rod 9 is sleeved and slidably connected with the limiting enclosure vertical rod 7. An electric rotary table 16 is installed at one end of the palletizing mechanical gripper 15 away from the clamping cross plate 2. A stable base 14 is fixedly connected to the lower end of the electric rotary table 16.

[0028] Figures 1-5It shows that this solution uses the palletizing mechanical gripper arm 15 to drive the material clamping cross plate 2, and uses multiple material suction vertical rods 3 below it to clamp and stack the sheet body in sequence above the storage bottom plate 1. During the process of the material clamping cross plate 2 clamping the material, according to the size range of the sheet body, the limit enclosure vertical rod 7 can be adjusted in position through the material suction vertical rod 3, so that when the material clamping cross plate 2 clamps the sheet body, multiple limit enclosure vertical rods 7 can be displaced outside the range of the sheet body. When the limit enclosure vertical rod 7 follows the material clamping cross plate 2 and moves above the storage bottom plate 1, the signal receiver 17 at the corresponding position is turned on, and the limit enclosure vertical rod 7 is docked with the corresponding position signal transmitter 8 to obtain the blanking signal. This method can make the blanking position of the material clamping cross plate 2 more stable. When the limit enclosure vertical rod 7 is docked with the corresponding groove opening 6 and the material clamping cross plate 2 is pressed down, multiple outer sleeve rods 18 in the limit enclosure vertical rod 7 and the sliding inner rod 9 can be mutually extruded through the sliding inner rod 9. The limit enclosure vertical rod 7 has a self-elastic telescopic force, so that the material clamping cross plate 2 can smoothly fit above each stacking height of the sheet body. Through the auxiliary stabilizing mechanism, accurate and stable auxiliary positioning and enclosing of the sheet body are carried out during the clamping and blanking processes, effectively overcoming the problem of the reverse displacement tendency of the sheet body during blanking due to the sheet body being too thin, enabling each layer of the sheet body to be neatly stacked within the specified range on the storage bottom plate 1 according to the preset standard, and greatly improving the neatness and stability of palletizing.

[0029] The second implementation mode:

[0030] Figures 6-7 It shows a PET sheet automatic palletizing device. Symmetrically fixed and connected to the left and right sides of the lower end of the material clamping cross plate 2 are vertical matching rods 11. A strip-shaped rotating shaft 12 is fixedly connected between the two vertical matching rods 11. The outer end of the strip-shaped rotating shaft 12 is fixedly connected with a pressing bulletproof block 13. The strip-shaped rotating shaft 12 is externally connected with a motor, and when the negative pressure suction cup 4 lowers the sheet body, it can synchronously use the strip-shaped rotating shaft 12 to rotate by the externally connected motor. When the strip-shaped rotating shaft 12 rotates, the pressing bulletproof block 13 can press against the uppermost sheet body to avoid the generation of a rebound force of the sheet body, thereby realizing accurate blanking, effectively avoiding the waste of storage space and potential transportation safety hazards caused by uneven stacking, and greatly improving the efficiency of the palletizing operation.

[0031] Combined with the current actual requirements, the above implementation modes adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An automatic palletizing device for PET sheets, characterized in that: It includes a clamping horizontal plate (2) arranged at the output end of the palletizing mechanical gripper arm (15). A plurality of suction material vertical rods (3) are fixedly connected to the lower end of the clamping horizontal plate (2). A negative pressure suction cup (4) is fixedly connected to the lower end of the suction material vertical rod (3). A plurality of electric guide rails (5) are fixedly connected to the lower end of the clamping horizontal plate (2). A limit retaining vertical rod (7) is fixedly connected to the output end of the electric guide rail (5). A storage bottom plate (1) is arranged below the clamping horizontal plate (2). A plurality of corresponding groove openings (6) are formed in the upper end of the storage bottom plate (1). The plurality of corresponding groove openings (6) and the plurality of limit retaining vertical rods (7) are matched with each other. A signal transmitter (8) is fixedly connected to the lower end of the limit retaining vertical rod (7). A plurality of signal receivers (17) are fixedly connected to the lower inner wall of the corresponding groove opening (6). The plurality of signal receivers (17) are arranged horizontally. The plurality of corresponding groove openings (6) and the corresponding signal transmitters (8) are matched with each other.

2. The automatic palletizing device for PET sheets according to claim 1, characterized in that: A plurality of sheet bodies are vertically stacked on the upper end of the storage bottom plate (1). The sheet bodies are located between the plurality of limit retaining vertical rods (7).

3. The automatic palletizing device for PET sheets according to claim 1, characterized in that: The limit retaining vertical rod (7) includes an outer sleeve rod (18) located on the upper side. A spring telescopic member (10) is fixedly connected to the upper inner wall of the outer sleeve rod (18).

4. The automatic palletizing device for PET sheets according to claim 3, wherein: A sliding inner rod (9) is fixedly connected to the lower end of the spring telescopic member (10). The sliding inner rod (9) and the limit retaining vertical rod (7) are sleeved and slidably connected to each other.

5. The automatic palletizing device for PET sheets according to claim 1, characterized in that: Vertical matching rods (11) are symmetrically and fixedly connected to the left and right sides of the lower end of the clamping horizontal plate (2). A strip-shaped rotating shaft (12) is fixedly connected between the two vertical matching rods (11).

6. The automatic palletizing device for PET sheets according to claim 5, characterized in that: A pressing bulletproof block (13) is fixedly connected to the outer end of the strip-shaped rotating shaft (12). The strip-shaped rotating shaft (12) is externally connected to a motor.

7. The automatic palletizing device for PET sheets according to claim 1, characterized in that: An electric turntable (16) is installed at one end of the palletizing mechanical gripper arm (15) far from the clamping horizontal plate (2). A stable base (14) is fixedly connected to the lower end of the electric turntable (16).

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