A distance-adjustable pop can unstacker

By introducing components such as electric rails, moving troughs, and bidirectional screws into the can depalletizer, the problems of cans shifting and falling during transport have been solved, achieving stable transport and multi-height adaptability, and improving the continuity and quality of production.

CN224349935UActive Publication Date: 2026-06-12HEBEI YIMENG PACKAGING SPECIAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI YIMENG PACKAGING SPECIAL EQUIP CO LTD
Filing Date
2025-06-01
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing can depalletizing machines, stacked cans are prone to shifting and falling off at the moment the conveyor rollers and conveyor chain start and stop, which affects the smooth progress of subsequent production.

Method used

The system employs components such as an electric rail, a moving trough, a bidirectional screw, a moving slider, a drive motor, a support tube, a limit frame, a clamping tube, and a rubber airbag. The drive motor drives the bidirectional screw and the moving slider to adjust the position of the clamping tube, which moves synchronously with the conveying roller and the electric rail to ensure stable conveying of the cans. The rubber airbag provides cushioning and fixation.

🎯Benefits of technology

It effectively prevents aluminum cans from shifting and falling due to inertia during transportation, ensuring the continuity and stability of production. It is suitable for fixing aluminum cans of various heights and improves production quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224349935U_ABST
    Figure CN224349935U_ABST
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Abstract

The utility model discloses an easy -open can unstacker of adjustable interval relates to unstacker technical field, and the inside rotation of mobile groove is equipped with two -way screw rod, and the inside both ends sliding of mobile groove are equipped with mobile sliding block, and two mobile sliding blocks are connected with two -way screw rod both ends respectively through thread hole, and the top of mobile sliding block is connected with the support pipe, and the clamping pipe is connected between two connecting screw holes of the same plane, and the both ends of clamping pipe are rotatably connected in two threaded connection pipe one end, and the utility model is fixed to every layer's easy -open can through the clamping pipe of both sides mutual approach, and is driven the easy -open can of stacking with the cooperation of conveying roller and electric track synchronous belt, removes, and in the instantaneous starting and stopping of conveying roller, can avoid the easy -open can of stacking and the falling of deviation, guarantee the smooth operation of subsequent production, and through the clearance between every layer clamping pipe, can effectual fixed to the easy -open can of multiple height, and the scope of application is wide.
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Description

Technical Field

[0001] This utility model relates to the field of depalletizing machine technology, specifically to a can depalletizing machine with adjustable spacing. Background Technology

[0002] Aluminum cans are made by processing the material of the can lid itself into a rivet, attaching a pull ring to the outside, and then riveting it tight. With the increasing market for various canned beverages, manufacturers are demanding higher and higher production efficiency from their machines. Before filling, aluminum cans go from the warehouse to the depalletizer and then directly into the production line.

[0003] In the existing production and processing, after the stacked aluminum cans enter the depalletizer, they need to pass through the conveyor rollers or conveyor chain to enter the top of the depalletizer lifting plate. After being lifted by the lifting plate, the aluminum cans are sent into the production line layer by layer.

[0004] In Chinese patent application number 202322696637.6, entitled "An Adjustable Spacing Can Depalletizer", the patent uses a limiting structure to fix unloaded cans, preventing displacement of the lower cans when the top cans are unloaded by the depalletizer. However, when the existing stacker crane's conveyor rollers and conveyor chain are transporting stacked cans, the stacked cans are prone to shifting due to inertia at the moment of starting and stopping of the conveyor rollers and conveyor chain. In severe cases, the cans are prone to falling off, which is not conducive to the transfer of cans in subsequent lifting and conveying. Utility Model Content

[0005] This invention provides an adjustable spacing can unpalletizer, which can effectively solve the problem in the prior art where, when the conveyor rollers and conveyor chain of the existing stacker conveyor are transporting stacked cans, the stacked cans are prone to shifting due to inertia at the moment of starting and stopping of the conveyor rollers and conveyor chain. In severe cases, the cans are prone to falling off, making it difficult to transfer the cans during subsequent lifting and conveying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable spacing can depalletizer, comprising a conveying roller, a lifting box installed at the top of one end of the conveying roller, a lifting plate installed at the bottom of the lifting box and located at the bottom of the conveying roller, electric rails installed on both sides of the conveying roller, a moving groove connected to the top output end of the electric rails, a bidirectional screw rotatably installed inside the moving groove, and moving sliders slidably installed at both ends inside the moving groove, the two moving sliders being connected to the two ends of the bidirectional screw through threaded holes respectively, a drive motor installed at one end of the moving groove, and the output end of the drive motor being connected to one end of the adjacent bidirectional screw;

[0007] The top of the movable slider is connected to a support tube, and a number of connecting screw holes are evenly spaced on one side of the support tube. A clamping tube is connected between two connecting screw holes located on the same plane. The two ends of the clamping tube are respectively rotatably connected to one end of two threaded connecting tubes, and the other end of the threaded connecting tube is connected to the adjacent connecting screw hole.

[0008] According to the above technical solution, the top surface of the lifting plate is located at the bottom of the conveying roller, and a limit frame is welded to one side of the support tube at the bottom of the connecting screw hole. The longitudinal cross-section of the limit frame is U-shaped.

[0009] According to the above technical solution, both the inner side of the moving groove and the outer side of the moving slider are smooth surfaces, and the outer side of the moving slider is attached to the inner side of the moving groove.

[0010] According to the above technical solution, an air supply pipe is connected to the bottom of the other side of the support tube, and a number of connecting holes are evenly spaced on one side of the clamping tube. A connecting hole plate is connected to the clamping tube at the position corresponding to the connecting hole, and a rubber airbag is connected to one side of the connecting hole plate.

[0011] According to the above technical solution, the remaining connecting screw holes are connected to a first sealing plug by a thread, and one end of the air supply pipe is connected to a second sealing plug by a thread.

[0012] According to the above technical solution, the electric rail and the input terminal of the drive motor are electrically connected to the output terminal of the external controller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Equipped with an electric rail, moving groove, bidirectional screw, moving slider, drive motor, support tube, limit frame, connecting screw hole, clamping tube and threaded connecting tube. The drive motor drives the moving slider and support tube at both ends of the bidirectional screw to move closer to each other, and the clamping tubes on both sides move closer to each other to fix the cans of each layer. In conjunction with the conveyor roller and electric rail, the stacked cans are moved synchronously to complete the conveying of cans. At the moment the conveyor roller starts and stops, it can prevent the stacked cans from shifting or falling, ensuring the smooth progress of subsequent production.

[0015] During installation, rotate the threaded connecting tubes at both ends of the clamping tube to connect the threaded connecting tubes at both ends to the adjacent connecting screw holes at both ends. By adjusting the gap between each layer of clamping tubes, it can effectively fix cans of various heights, making it widely applicable.

[0016] 2. It is equipped with a first sealing plug, an air supply pipe, a second sealing plug, a connecting hole, a connecting plate, and a rubber air bladder. The connecting plate is connected to one side of the clamping pipe, and the rubber air bladder is connected to the other side of the connecting plate. The rubber air bladder can be inflated by connecting to the air supply pipe through an external air pump. The inflated rubber air bladder can buffer the clamping pressure, prevent pressure damage to the can, and improve production quality. At the same time, the inflated rubber air bladder can increase the contact area with the can, making the fixing effect better. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] In the attached diagram:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation structure of the movable slot of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the movable block of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the clamping tube of this utility model;

[0023] Figure 5 This is a schematic diagram of the installation structure of the rubber airbag of this utility model;

[0024] The following are the labels in the diagram: 1. Conveying roller; 2. Lifting box; 3. Lifting plate; 4. Electric rail; 5. Moving groove; 6. Bidirectional screw; 7. Moving slider; 8. Drive motor; 9. Support tube; 10. Limiting frame; 11. Connecting screw hole; 12. First sealing plug; 13. Clamping tube; 14. Threaded connecting tube; 15. Air supply tube; 16. Second sealing plug; 17. Connecting hole; 18. Connecting orifice plate; 19. Rubber airbag. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] Example: Figure 1-5As shown, this utility model provides a technical solution for an adjustable spacing can depalletizer, including a conveyor roller 1, a lifting box 2 installed at the top of one end of the conveyor roller 1, a lifting plate 3 installed at the bottom of the lifting box 2 and located at the bottom of the conveyor roller 1, the top surface of the lifting plate 3 being located at the bottom of the conveyor roller 1, when the stacked cans move to the top of the lifting plate 3 via the conveyor roller 1, the lifting plate 3 can push the stacked cans to rise, electric rails 4 are installed on both sides of the conveyor roller 1, the top output end of the electric rails 4 is connected to a moving groove 5, a bidirectional screw 6 is rotatably installed inside the moving groove 5, and moving sliders 7 are slidably installed at both ends inside the moving groove 5, the two moving sliders 7 are connected to the two ends of the bidirectional screw 6 respectively through threaded holes, the inner side of the moving groove 5 and the outer side of the moving sliders 7 are both smooth surfaces, the outer side of the moving sliders 7 fits against the inner side of the moving groove 5, so that the frictional resistance between the moving groove 5 and the moving sliders 7 is reduced, so that the moving sliders 7 can move stably and smoothly inside the moving groove 5, a drive motor 8 is installed at one end of the moving groove 5, and the output end of the drive motor 8 is connected to one end of the adjacent bidirectional screw 6;

[0027] The top of the movable slider 7 is connected to a support tube 9. Several connecting screw holes 11 are evenly spaced on one side of the support tube 9. A clamping tube 13 is connected between two connecting screw holes 11 located on the same plane. The two ends of the clamping tube 13 are rotatably connected to one end of two threaded connecting tubes 14. The other end of the threaded connecting tube 14 is connected to the adjacent connecting screw hole 11. A limit frame 10 is welded to the bottom of the connecting screw hole 11 on one side of the support tube 9. The longitudinal section of the limit frame 10 is U-shaped. The two ends of the bottom of the clamping tube 13 are embedded in the limit frame 10. The limit frame 10 can fix the position of the clamping tube 13 and prevent the clamping tube 13 from rotating.

[0028] The other side of the support tube 9 is connected to the bottom of the air supply tube 15. The clamping tube 13 has several connecting holes 17 evenly spaced on one side. The clamping tube 13 is connected to the connecting hole plate 18 at the position corresponding to the connecting hole 17. The connecting hole plate 18 is connected to the rubber air bag 19 on one side. The remaining connecting screw holes 11 are connected to the first sealing plug 12 by threads. One end of the air supply tube 15 is connected to the second sealing plug 16 by threads. The first sealing plug 12 can seal the remaining connecting screw holes 11, and the second sealing plug 16 can seal the air supply tube 15 to prevent air from escaping from the rubber air bag 19.

[0029] The input terminals of the electric rail 4 and the drive motor 8 are electrically connected to the output terminal of the external controller, and the input terminal of the external controller is electrically connected to the output terminal of the external power supply. The controller can automatically control each electrical component, which is convenient and fast.

[0030] The working principle and usage process of this utility model are as follows: Before conveying, the gap between the clamping tubes 13 is adjusted according to the height of the cans to be processed and conveyed. When installing the clamping tubes 13, the clamping tubes 13 are placed on the top of the limit frame 10 on the same layer, and the clamping tubes 13 are fixed layer by layer so that the clamping tubes 13 of each layer can fix the cans of each layer. The threaded connecting tubes 14 at both ends of the clamping tubes 13 are rotated to connect the threaded connecting tubes 14 at both ends of the clamping tubes 13 to the adjacent connecting screw holes 11 at both ends respectively. The remaining connecting screw holes 11 are sealed by the first sealing plug 12.

[0031] Connect the inflation end of the external air pump to two air supply pipes 15 on one side. The air delivered by the external air pump flows through the air supply pipe 15, the support pipe 9, the connecting screw hole 11, the threaded connecting pipe 14, the clamping pipe 13 and the connecting hole 17 in sequence, and finally enters the rubber airbag 19 to inflate the rubber airbag 19. After all the rubber airbags 19 are inflated, seal the air supply pipe 15 with the second sealing plug 16 to prevent air leakage inside the rubber airbag 19.

[0032] The stacked aluminum cans are placed on top of the conveyor roller 1 between the clamping tubes 13 on both sides. The drive motor 8 is started, and the drive motor 8 drives the bidirectional screw 6 to rotate. Under the limiting action of the moving groove 5 and the driving action of the bidirectional screw 6, the drive motor 8 drives the moving sliders 7 and the support tube 9 at both ends of the bidirectional screw 6 to move closer to each other, and then drives the clamping tubes 13 on both sides to move closer to each other until the aluminum cans of each layer of the rubber airbag 19 are tightly sealed. The inflated rubber airbag 19 can buffer the clamping pressure and prevent pressure damage to the aluminum cans. At the same time, the inflated rubber airbag 19 can increase the contact area with the aluminum cans, making the fixing effect better.

[0033] After the clamping tube 13 and rubber airbag 19 secure the cans, the conveying roller 1 and electric rail 4 move synchronously. The conveying roller 1 moves the stacked cans, and the clamping tube 13 and rubber airbag 19 also move synchronously to secure the cans until the stacked cans reach the top of the lifting plate 3. Then, the conveying roller 1 and electric rail 4 stop running. Subsequently, the drive motor 8 drives the clamping tube 13 and rubber airbag 19 to disengage from the cans, and the lifting plate 3 lifts the cans. After all the cans have been transferred, the electric rail 4 drives the support tube 9 back to its original position, ready for the next conveying. The instant the conveying roller 1 starts and stops, it can prevent the stacked cans from shifting or falling, ensuring the smooth progress of subsequent production. At the same time, by adjusting the gap between each layer of clamping tube 13, cans of various heights can be effectively secured, making it widely applicable.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A can depalletizer with adjustable spacing, comprising conveyor rollers (1), characterized in that, At one end of the top of the conveying roller (1), a lifting box (2) is installed. At the bottom of the lifting box (2), a lifting disc (3) is installed. On both sides of the conveying roller (1), electric rails (4) are installed. At the top output end of the electric rail (4), a moving groove (5) is connected. Inside the moving groove (5), a bidirectional screw (6) is rotatably installed. At both ends inside the moving groove (5), moving sliders (7) are slidably installed. The two moving sliders (7) are respectively connected to both ends of the bidirectional screw (6) through threaded holes. At one end of the moving groove (5), a driving motor (8) is installed. The output end of the driving motor (8) is connected to one end of the adjacent bidirectional screw (6). At the top of the moving slider (7), a support pipe (9) is connected. On one side of the support pipe (9), a number of connecting screw holes (11) are evenly spaced. Between two of the connecting screw holes (11) in the same plane, a clamping pipe (13) is connected. Both ends of the clamping pipe (13) are respectively rotatably connected to one end of two threaded connecting pipes (14). The other end of the threaded connecting pipe (14) is connected to the adjacent connecting screw hole (11).

2. The adjustable spacing can depalletizer according to claim 1, characterized in that, The top surface of the lifting disc (3) is located at the bottom of the conveying roller (1). At the bottom of the support pipe (9) on one side and at the bottom of the connecting screw hole (11), a limiting frame (10) is welded. The longitudinal cross-sectional shape of the limiting frame (10) is U-shaped.

3. The adjustable spacing can depalletizer according to claim 1, characterized in that, The inner side of the moving groove (5) and the outer side of the moving slider (7) are both smooth surfaces. The outer side of the moving slider (7) is in contact with the inner side of the moving groove (5).

4. The adjustable spacing can depalletizer according to claim 1, characterized in that, At the bottom of the other side of the support pipe (9), a supplementary air pipe (15) is connected. On one side of the clamping pipe (13), a number of communication holes (17) are evenly spaced. At the position corresponding to the communication hole (17) of the clamping pipe (13), a connecting hole plate (18) is connected. On one side of the connecting hole plate (18), a rubber airbag (19) is connected.

5. The adjustable spacing can depalletizer according to claim 4, characterized in that, Inside the remaining connecting screw holes (11), a first sealing plug (12) is connected by thread. One end of the supplementary air pipe (15) is connected by thread with a second sealing plug (16).

6. The adjustable spacing can depalletizer according to claim 5, characterized in that, The input ends of the electric rail (4) and the driving motor (8) are electrically connected to the output end of an external controller.