Automatic stacking and piling device for cartons
By combining a distance sensor and an air pump, the problem of automatic adjustment and cleaning of the carton stacking device was solved, achieving stable stacking and neat arrangement of cartons.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN SUNSHINE TIANCHENG PRINTING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-09
AI Technical Summary
Existing cardboard box stacking devices cannot automatically adjust according to cardboard box specifications, resulting in uneven clamping. Cardboard boxes are prone to scattering or tilting and collapsing during transfer and stacking. At the same time, the lack of cleaning of debris on the cardboard box surface leads to instability.
The device uses a distance sensor to adjust the clamping distance, an air pump and air nozzle to clean up carton debris, and a hook plate to level the edges of the carton, thus achieving automatic adjustment and cleaning functions.
It automatically adjusts the clamping according to the carton size to prevent the carton from scattering and tilting, ensuring stacking stability, while cleaning up debris and improving stacking efficiency.
Smart Images

Figure CN224336662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automatic stacking and placing equipment, specifically to an automatic stacking and placing equipment for cardboard boxes. Background Technology
[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc., and they come in various specifications and models. Three-layer and five-layer cardboard boxes are commonly used, while seven-layer boxes are less common. Each layer consists of linerboard, corrugated paper, core paper, and facing paper. The linerboard and facing paper are made of kraft paper or corrugated cardboard, while the core paper is made of corrugated paper. They are typically used as wrapping materials for goods or as the outer protective layer for items. The volume of a cardboard box varies depending on the size of the goods. Currently, cardboard boxes on the market come in various sizes and models, offering advantages such as light weight and heavy load-bearing capacity. After production, cardboard boxes need to be stacked to reduce space usage and facilitate subsequent sales and use. A search revealed existing technology (publication number: CN218200911U), which describes "a stacking device comprising: a support, an adjusting plate, and clamping fixtures; the support is horizontally arranged, and the bottom of its top is horizontally and vertically equidistantly provided with an adjusting plate, the bottom of the adjusting plate being provided with two sets of clamping fixtures that can move closer or further apart in a horizontal direction; each set of clamping fixtures includes: a fixed frame, a limiting baffle, an elastic connector, and a first cylinder; the fixed frame is internally vertically arranged with multiple limiting baffles at adjustable intervals, and adjacent limiting baffles are connected by horizontally arranged elastic connectors. This stacking device overcomes the problem in existing technologies that stacking devices cannot be adjusted according to the specifications of cardboard boxes, and that when transporting stacked cardboard boxes, uneven force on the cardboard boxes can cause them to scatter on the ground during stacking, leading to stacking failure."
[0003] While existing stacking devices can adjust to different carton sizes, in actual use, when frequent changes in carton size are required, manual adjustment of the stacking device is cumbersome. Furthermore, after clamping, only the two sides of the carton can be aligned, making it difficult to align the other two sides, leading to unevenness during transfer and stacking. Additionally, due to the cardboard cutting process, cardboard scraps may remain on the surface of the carton during each clamping and stacking process. These scraps accumulate between the carton boards during stacking, causing the stacked cartons to easily tilt and collapse. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, an automatic carton stacking and placement device is provided to solve the problems mentioned in the background.
[0005] To achieve the above objectives, an automatic cardboard box stacking and placing device is provided, comprising: a movable frame and a clamping assembly. An adjusting cylinder is installed on the inner side of the movable frame, and an adjusting plate is connected to the upper end of the adjusting cylinder. An electric push rod is installed on the upper end of the adjusting plate, and a piston rod is provided at one end of the electric push rod. A flat plate is connected to the outer end of the piston rod via a connecting plate. A second photoelectric switch is installed on the lower side of the flat plate, and a hook plate is connected to the outer end of the flat plate. A top plate is provided on the top of the movable frame, and a first photoelectric switch is installed on one side plate of the movable frame. The clamping assembly is installed on the lower side of the top plate and includes a lifting plate. A hydraulic cylinder and a guide rod are connected to the upper side of the lifting plate, and a pair of clamping plates are slidably connected to the lower side of the lifting plate. A guide plate is provided at the upper end of the clamping plates, and a pair of distance sensors are installed on the lower side of the lifting plate. An air pump is installed on the outer wall of the clamping plates, and an air distribution pipe is connected to the outlet of the air pump via a hose. An air blowing pipe is connected to the inner wall of the air distribution pipe, and an air blowing port is provided at the inner end of the air blowing pipe.
[0006] Furthermore, the bottom of the mobile frame is provided with drive wheels, and a drive box is connected to the upper side of the drive wheels.
[0007] Furthermore, the top plate protrudes outward beyond the top of the movable frame, a hydraulic cylinder is mounted on the upper side of the top plate, and a guide rod slides through the top plate.
[0008] Furthermore, the lifting plate is designed with an N-shaped structure, and a bidirectional lead screw is rotatably connected to the inner side of the lifting plate, with one end of the bidirectional lead screw connected to a first motor.
[0009] Furthermore, a horizontal bar is provided on the lower side of the lifting plate, the horizontal bar slides through the guide plate, and at the same time, a bidirectional screw thread is screwed through the clamping plate.
[0010] Furthermore, the air distribution pipe is fixed to the outer wall of the clamp, and the air blowing pipe is inserted into the interior of the clamp, with the air blowing pipe communicating with the air distribution pipe.
[0011] Furthermore, the air inlet is located on the inner wall of the clamp plate, and the air inlet is a rectangular slot with the slot inclined downwards.
[0012] Furthermore, a shovel plate is slidably inserted into the lower end of the clamping plate. The shovel plate is located in a storage groove opened at the lower end of the clamping plate. A slider is connected to the upper end of the shovel plate. A one-way lead screw is screwed through the slider. One end of the one-way lead screw is connected to a second motor.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. An external controller is used to adjust the sensing distance of the guide plate by a distance sensor. The adjustment is made according to the specifications of the carton. When the carton is clamped, the distance sensor detects the distance and stops the first motor when the clamping plate moves to clamp the carton and contacts it. This prevents the carton from being damaged. After the carton is clamped, the cylinder, adjusting plate, electric push rod, flat plate and hook plate are adjusted to move the flat plate and hook plate to the front of the carton. Then the hook plate is adjusted downward so that it is located at the front of the carton. Then the electric push rod is retracted to pull the hook plate backward, so that the rear of the carton contacts the moving frame and is aligned front and back.
[0015] 2. By using an air pump, air distribution pipe and air distribution pipe installed on the outer wall of the clamp, air is blown through the air outlet to the upper side of the clamped carton, so that the debris on the upper side of the carton is blown away by the wind. This allows the debris on the upper side of the carton to be blown away each time it is stacked, thereby preventing the debris from accumulating in the carton layer, which would cause the stacked carton to be unstable and may lead to collapse. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of an embodiment of the present utility model.
[0017] Figure 2 This is a side view of the clamping assembly according to an embodiment of the present invention.
[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Schematic diagram of the structure at point A in the middle.
[0019] Figure 4 This is a three-dimensional structural diagram of the hook plate according to an embodiment of the present utility model.
[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping plate according to an embodiment of the present utility model.
[0021] In the diagram: 1. Moving frame; 11. Adjusting cylinder; 12. Adjusting plate; 13. Electric actuator; 131. Piston rod; 132. Connecting plate; 133. Flat plate; 134. Second photoelectric switch; 135. Hook plate; 14. Top plate; 15. First photoelectric switch; 16. Drive box; 2. Clamping assembly; 21. Lifting plate; 211. Distance sensor; 22. First motor; 23. Bidirectional lead screw; 24. Clamping plate; 241. Guide plate; 242. Storage slot; 243. Unidirectional lead screw; 244. Second motor; 25. Air pump; 26. Air distribution pipe; 261. Air pipe; 262. Air outlet; 27. Hydraulic cylinder; 28. Guide rod; 29. Shovel plate. Detailed Implementation
[0022] Reference Figures 1 to 5 As shown, this utility model provides an automatic cardboard box stacking and placing device, including: a movable frame 1 and a clamping assembly 2. An adjusting cylinder 11 is installed on the inner side of the movable frame 1. An adjusting plate 12 is connected to the upper end of the adjusting cylinder 11. An electric push rod 13 is installed on the upper end of the adjusting plate 12. One end of the electric push rod 13 is provided with a piston rod 131. The outer end of the piston rod 131 is connected to a flat plate 133 via a connecting plate 132. A second photoelectric switch 134 is installed on the lower side of the flat plate 133. A hook plate 135 is connected to the outer end of the flat plate 133. A top plate 14 is provided on the top of the movable frame 1. A first photoelectric switch 15 is installed on one side plate of the movable frame 1. The clamping assembly 2 is installed below the top plate 14. A drive wheel is provided at the bottom of the movable frame 1. A drive box 16 is connected to the upper side of the drive wheel. The top plate 14 protrudes outward beyond the top of the moving frame 1. A hydraulic cylinder 27 is installed on the upper side of the top plate 14. At the same time, the guide rod 28 slides through the top plate 14. The clamping assembly 2 includes a lifting plate 21. The upper side of the lifting plate 21 is connected to the hydraulic cylinder 27 and the guide rod 28. At the same time, a pair of clamping plates 24 are slidably connected to the lower side of the lifting plate 21. The upper end of the clamping plate 24 is provided with a guide plate 241. A pair of distance sensors 211 are installed on the lower side of the lifting plate 21. An air pump 25 is installed on the outer wall of the clamping plate 24. The air outlet of the air pump 25 is connected to an air distribution pipe 26 through a hose. An air blowing pipe 261 is connected to the inner wall of the air distribution pipe 26. An air blowing port 262 is provided on the inner end of the air blowing pipe 261.
[0023] Specifically, the movable frame 1 and the clamping assembly 2 constitute the main structure of the automatic carton stacking and placing equipment involved in this application.
[0024] Specifically, the mobile frame 1 also includes two side panels, and a control box is installed on the outside of one of the side panels. The control box contains a microcontroller controller, and all electrical equipment and signal switches are electrically connected to the controller.
[0025] Specifically, the second photoelectric switch 134 is set by the controller to detect the distance of the object, so that when the flat plate 133 is downward, it can detect the distance to the carton, and then determine that the hook plate 135 passes over the front end of the carton to achieve the effect of hanging the carton.
[0026] Specifically, the first photoelectric switch 15 can limit the height of the lifting plate 21 when it moves, so that it roughly matches the position of the hook plate 135, making it easy to control the hook plate 135 to hook the carton while moving a small distance.
[0027] Specifically, the drive box 16 contains a drive motor, gearbox, transmission shaft, and differential, etc. The transmission shaft is connected to the drive wheel through a half shaft, which is consistent with the existing technology of flatbed trolley drive. At the same time, a wireless transmission module is set in the drive box 16 to cooperate with external remote control devices for wireless control.
[0028] Specifically, a pair of distance sensors 211 are provided, with their detection ends facing the outer guide plates 241 respectively. By detecting the distance that the guide plates 241 on both sides move closer and closer, and the distance between the two distance sensors 211, the width of the clamped carton can be set.
[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 5 In the middle, the lifting plate 21 is designed with an N-shaped structure, and a bidirectional lead screw 23 is rotatably connected to the inner side of the lifting plate 21. One end of the bidirectional lead screw 23 is connected to the first motor 22. A horizontal bar is provided on the lower side of the lifting plate 21. The horizontal bar slides through the guide plate 241. At the same time, the bidirectional lead screw 23 is screwed through the clamping plate 24. The air distribution pipe 26 is fixed to the outer wall of the clamping plate 24, and the air blowing pipe 261 is inserted into the interior of the clamping plate 24. The air blowing pipe 261 is a multi-pipe that communicates with the air distribution pipe 26. The air blowing port 262 is opened on the inner wall of the clamping plate 24. The air blowing port 262 is a rectangular slot with the slot inclined downward. A shovel plate 29 is slidably inserted into the lower end of the clamping plate 24. The shovel plate 29 is located in the storage slot 242 opened at the lower end of the clamping plate 24. A slider is connected to the upper end of the shovel plate 29. A one-way lead screw 243 is screwed through the slider. One end of the one-way lead screw 243 is connected to the second motor 244.
[0030] In a preferred embodiment, the first motor 22, the bidirectional lead screw 23, and the guide plate 241 are configured to drive the clamping plate 24 to move closer to the clamp and to release it.
[0031] As a preferred implementation, an air pump 25, an air distribution pipe 26, an air blowing pipe 261, and an air blowing port 262 are used to clean impurities and debris on the upper side of the carton.
[0032] It should be noted that the cardboard boxes involved in this application are either unfolded cardboard sheets or single pieces of cardboard.
[0033] In use, an external controller is used to adjust the sensing distance of the guide plate using a distance sensor. This adjustment is based on the carton's dimensions, ensuring that during clamping, the preset distance sensor detects the guide plate's position as the clamping plate moves and contacts the carton, stopping the first motor to prevent damage. After the carton is clamped, the cylinder, adjusting plate, electric push rod, and flat plate and hook plate are adjusted to move the flat plate and hook plate to the front of the carton. Adjust the hook plate downwards so that it is positioned at the front of the carton. Then, retract the electric actuator to pull the hook plate backwards, thus aligning the rear of the carton with the moving frame. Utilizing an air pump, air distribution pipe, and air duct installed on the outer wall of the clamping plate, air is blown through the air nozzles towards the upper side of the clamped carton. This blows away any debris on the upper side of the carton, preventing debris from accumulating in the carton layers and causing instability or potential collapse during stacking.
[0034] The automatic cardboard box stacking and placing equipment of this utility model can effectively solve the problems mentioned in the background technology. Based on the existing automatic cardboard box stacking and placing equipment technology, it has the functions of easy adjustment of clamping distance, adapting to cardboard boxes of different specifications, smoothing the edges of the cardboard boxes after clamping, and easy cleaning of debris on the cardboard boxes.
Claims
1. An automatic cardboard box stacking and placing device, comprising: A movable frame (1) and a clamping assembly (2), characterized in that: an adjusting cylinder (11) is installed on the inner side of the movable frame (1), an adjusting plate (12) is connected to the upper end of the adjusting cylinder (11), an electric push rod (13) is installed on the upper end of the adjusting plate (12), a piston rod (131) is provided at one end of the electric push rod (13), a plate (133) is connected to the outer end of the piston rod (131) through a connecting plate (132), a second photoelectric switch (134) is installed on the lower side of the plate (133), a barb plate (135) is connected to the outer end of the plate (133), a top plate (14) is provided on the top of the movable frame (1), and a first photoelectric switch (15) is installed on one side plate of the movable frame (1). The clamping assembly (2) is installed on the lower side of the top plate (14). The clamping assembly (2) includes a lifting plate (21). A hydraulic cylinder (27) and a guide rod (28) are connected to the upper side of the lifting plate (21). At the same time, a pair of clamping plates (24) are slidably connected to the lower side of the lifting plate (21). A guide plate (241) is provided at the upper end of the clamping plate (24). A pair of distance sensors (211) are installed on the lower side of the lifting plate (21). An air pump (25) is installed on the outer wall of the clamping plate (24). The air outlet of the air pump (25) is connected to an air distribution pipe (26) through a hose. An air blowing pipe (261) is connected to the inner wall of the air distribution pipe (26). An air blowing port (262) is provided at the inner end of the air blowing pipe (261).
2. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The bottom of the mobile frame (1) is provided with drive wheels, and a drive box (16) is connected to the upper side of the drive wheels.
3. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The top plate (14) protrudes outward beyond the top of the movable frame (1), and the hydraulic cylinder (27) is installed on the upper side of the top plate (14), while the guide rod (28) slides through the top plate (14).
4. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The lifting plate (21) is designed with an N-shaped structure, and a two-way lead screw (23) is rotatably connected to the inner side of the lifting plate (21). One end of the two-way lead screw (23) is connected to a first motor (22).
5. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The lifting plate (21) is provided with a horizontal bar on its lower side. The horizontal bar slides through the guide plate (241), and at the same time, the bidirectional screw (23) is screwed through the clamping plate (24).
6. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The air distribution pipe (26) is fixed to the outer wall of the clamp (24), and the air blowing pipe (261) is inserted into the interior of the clamp (24), and the air blowing pipe (261) is connected to the air distribution pipe (26).
7. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, The air inlet (262) is located on the inner wall of the clamp (24). The air inlet (262) is a rectangular slot with the slot tilted downwards.
8. The automatic cardboard box stacking and placement device according to claim 1, characterized in that, A shovel plate (29) is slidably inserted into the lower end of the clamping plate (24). The shovel plate (29) is located in the storage groove (242) opened at the lower end of the clamping plate (24). A slider is connected to the upper end of the shovel plate (29). A one-way screw rod (243) is screwed through the slider. One end of the one-way screw rod (243) is connected to a second motor (244).
Citation Information
Patent Citations
Stacking device
CN218200911U