Carton stacker clamp

By designing a carton palletizer fixture, a slider and slide rail structure and a robotic arm drive are used to achieve stable clamping and smooth pushing of cartons. This solves the problem of vacuum suction cup fixtures easily breaking the vacuum under heavy load, improves the stability and adaptability of the palletizing equipment, and is suitable for high-speed, high-frequency carton handling.

CN224410713UActive Publication Date: 2026-06-26WEIZHENG (KUNSHAN) INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIZHENG (KUNSHAN) INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-08-24
Publication Date
2026-06-26

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Abstract

The utility model relates to the technical field of logistics automation equipment discloses a carton stacking machine clamp, including the connecting plate, the connecting plate lower surface fixedly connected with the sliding block no.
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Description

Technical Field

[0001] This utility model relates to the field of logistics automation equipment technology, and in particular to a carton palletizer clamp. Background Technology

[0002] With the development of automated packaging and warehousing logistics technologies, palletizing equipment is widely used at the end of the production line to achieve the orderly stacking of finished cartons. Among these, the carton palletizer fixture, as a core actuator, is responsible for gripping, transporting, and positioning cartons, placing higher demands on its stability, safety, and efficiency. Especially in the high-volume production environments of industries such as food, beverage, and daily chemicals, the varying weights and sizes of cartons pose significant challenges to the adaptability and load-bearing capacity of the fixtures. Therefore, designing a stable carton palletizing fixture suitable for different loads is of great significance for improving production efficiency and equipment reliability.

[0003] Vacuum suction cups are widely used as gripping actuators in existing carton palletizing equipment. Their basic principle is to create negative pressure between the suction cup and the carton using a vacuum generator, thereby achieving the adsorption and handling of the carton. Some systems are also equipped with multiple sets of suction cups to accommodate cartons of different sizes, and the suction force can be controlled by adjusting the vacuum pressure. This type of structure offers a degree of flexibility and efficiency when handling lightweight or medium-weight cartons, but it still fundamentally relies on negative pressure suction to complete the gripping task, making it relatively sensitive to load changes.

[0004] However, in practical applications, suction cup structures have significant shortcomings when handling heavy cartons. When moving heavy cartons or items with uneven surfaces, the suction cup is prone to "vacuum breaking" due to inadequate sealing, causing the cartons to suddenly detach during handling. This affects operational safety and can easily damage the goods. Therefore, existing suction cup clamps have poor reliability in heavy-duty palletizing operations and cannot meet the needs of high-frequency, heavy-weight handling scenarios. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a carton palletizing machine clamp, which aims to improve the existing structure that mostly uses sponge suction cups to clamp cartons. This causes the suction cups to easily break the vacuum when under heavy loads, resulting in products falling and being damaged.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a carton palletizer fixture, including a connecting plate, a slider two fixedly connected to the lower surface of the connecting plate, a slide rail slidably connected to the outer wall of the slider two, and a pressing component provided below the slide rail;

[0007] The pressing assembly includes a pressure plate disposed below the slide rail. A pushing cylinder is fixedly connected below the connecting plate, and a cylinder floating joint is fixedly connected to the output end of the pushing cylinder. A clamp bracket is fixedly connected to the outer wall of the slide rail. A pressing cylinder is fixedly connected below the connecting plate, and a guide shaft is provided on the outer wall of the pressing cylinder. A pressure plate is fixedly connected to the output end of the pressing cylinder. A second baffle is fixedly connected to the inner wall of the clamp bracket, and a limit switch is provided inside the second baffle. A stacking clamp is fixedly connected to the inner wall of the clamp bracket, and a support plate is fixedly connected to the outer wall of the stacking clamp.

[0008] Furthermore, a slider is fixedly connected to the upper surface of the connecting plate, a robotic arm is slidably connected to the inner wall of the slider, a baffle is fixedly connected to one end of the robotic arm, a motor is fixedly connected to the upper surface of the slider, the output end of the motor is fixedly connected to the outer wall of the robotic arm, a sliding sleeve is fixedly connected to the other end of the robotic arm, a column is slidably connected to the inner wall of the sliding sleeve, a motor is fixedly connected to the outer wall of the sliding sleeve, and a ground rail is slidably connected to the lower surface of the column.

[0009] Furthermore, the cylinder floating joint is disposed on the outer wall of the slide rail, and the outer wall of the pushing cylinder is fixedly connected to the inner wall of the clamp bracket.

[0010] Furthermore, the downward pressure cylinder is located below the slide rail, and the guide shaft is located above the pressure plate.

[0011] Furthermore, the palletizing fixture is positioned below the connecting plate, and the pallet is positioned below the pressure plate.

[0012] Furthermore, the second baffle is located below the connecting plate, and the limit switch is located on one side of the outer wall of the palletizing fixture.

[0013] Furthermore, the pusher cylinder is located on one side of the outer wall of the slide rail, and the slide rail is located below the connecting plate.

[0014] Furthermore, the robotic arm is positioned on one side of the outer wall of the column, and the ground rail is positioned below the robotic arm.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the real-time sensing of the carton's positioning status is achieved through a limit switch, automatically triggering the downward pressure cylinder. The pressure plate firmly presses the carton between the pallet and the second baffle, effectively preventing the carton from shaking or shifting during handling. The sliding cooperation between the slide rail and the second slider provides reserved space for the pushing action, which, together with the action of the pushing cylinder, enables the carton to be smoothly pushed out. After pushing is completed, it automatically resets, greatly improving operating efficiency and making it suitable for high-speed, high-frequency palletizing operations.

[0017] 2. In this utility model, the vertical lifting adjustment is achieved by the sliding cooperation between the sliding sleeve and the column, driven by motor one, to meet the requirements of different palletizing layer heights. With the front and rear telescopic device controlled by motor two, the position of the clamp in the front and rear directions can be flexibly adjusted, further improving the adaptability of operation. At the same time, the clamp as a whole moves horizontally through the ground rail, realizing precise positioning and adjustment in three-dimensional space. The structure as a whole can realize three degrees of freedom of movement in the up and down, front and back, and horizontal directions, improving the positioning flexibility and operational stability of the clamp, and adapting to the automatic palletizing needs of various specifications of cartons. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a carton palletizer fixture proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the structure above the ground rail of a carton palletizer clamp proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure below the connecting plate of a carton palletizer clamp proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure below the slide rail of a carton palletizer clamp proposed in this utility model;

[0022] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. Ground rail; 2. Column; 3. Sliding sleeve; 4. Motor 1; 5. Robotic arm; 6. Motor 2; 7. Slider 1; 8. Baffle 1; 9. Connecting plate; 10. Pushing cylinder; 11. Stacking fixture; 12. Slider 2; 13. Slide rail; 14. Cylinder floating joint; 15. Pressure plate; 16. Limit switch; 17. Support plate; 18. Fixture bracket; 19. Pressing cylinder; 20. Guide shaft; 21. Baffle 2. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-5An embodiment of this utility model is provided: a carton palletizer fixture, including a connecting plate 9, a slider 12 fixedly connected to the lower surface of the connecting plate 9, the slider 12 being installed below the connecting plate 9 and slidably connected to the slide rail 13, allowing the fixture bracket 18 to move back and forth, the slide rail 13 being slidably connected to the outer wall of the slider 12, and a pressing component being provided below the slide rail 13.

[0027] The pressing assembly includes a pressure plate 15, which presses the carton downward under the drive of a pressing cylinder 19 to ensure that it does not slide or shift during handling. The pressure plate 15 is located below the slide rail 13. A pushing cylinder 10 is fixedly connected below the connecting plate 9. The pushing cylinder 10 pushes the cylinder floating joint 14 to push out the carton and complete the stacking operation. The output end of the pushing cylinder 10 is fixedly connected to the cylinder floating joint 14. A clamp bracket 18 is fixedly connected to the outer wall of the slide rail 13. The clamp bracket 18 connects and supports the stacking clamp 11, the second baffle 21, and other components, and is the core frame of the clamp's front end structure. A fixed connection is located below the connecting plate 9. A pressing cylinder 19 is connected to the fixture, and a guide shaft 20 is provided on the outer wall of the pressing cylinder 19. The guide shaft 20 works with the pressing cylinder 19 to guide the up and down movement of the pressure plate 15 and prevent deviation. The pressure plate 15 is fixedly connected to the output end of the pressing cylinder 19. A second baffle 21 is fixedly connected to the inner wall of the fixture bracket 18. The second baffle 21 is located in front of the fixture and is used to limit the forward movement of the carton to prevent overshooting. A limit switch 16 is also installed to detect whether the carton is in place. The limit switch 16 is installed inside the second baffle 21. A palletizing fixture 11 is fixedly connected to the inner wall of the fixture bracket 18, and a support plate 17 is fixedly connected to the outer wall of the palletizing fixture 11.

[0028] Reference Figures 1-5A slider 7 is fixedly connected to the upper surface of the connecting plate 9. The slider 7 is connected to the upper part of the connecting plate 9 and slides with the robot arm 5 to control the forward and backward stroke. The robot arm 5 is slidably connected to the inner wall of the slider 7. A baffle 8 is fixedly connected to one end of the robot arm 5. The baffle 8 is installed at one end of the robot arm 5 for mechanical protection and initial limiting. A motor 6 is fixedly connected to the upper surface of the slider 7. The output end of the motor 6 is fixedly connected to the outer wall of the robot arm 5. A sliding sleeve 3 is fixedly connected to the other end of the robot arm 5. A column 2 is slidably connected to the inner wall of the sliding sleeve 3. A motor 4 is fixedly connected to the outer wall of the sliding sleeve 3. A ground rail 1 is slidably connected to the lower surface of the column 2. A cylinder floating joint 14 is set on the outer wall of the sliding rail 13. The outer wall of the pusher cylinder 10 is fixedly connected to the inner wall of the clamp bracket 18; the pressing cylinder 19 is located below the slide rail 13; the guide shaft 20 is located above the pressure plate 15; the palletizing clamp 11 is located below the connecting plate 9; the support plate 17 is located below the pressure plate 15; the second baffle 21 is located below the connecting plate 9; the limit switch 16 is located on one side of the outer wall of the palletizing clamp 11; the limit switch 16 is installed in the center of the second baffle 21; when the top of the carton touches it, the contact closes and sends a "positioned" signal to the control system; the pusher cylinder 10 is located on one side of the outer wall of the slide rail 13; the slide rail 13 is located below the connecting plate 9; the robot arm 5 is located on one side of the outer wall of the column 2; and the ground rail 1 is located below the robot arm 5.

[0029] Working principle: When a carton palletizer fixture is needed, the robot arm 5 drives the fixture to slide from the waiting area to the end of the conveyor line. The conveyor line transports the carton to be palletized onto the pallet 17 at the bottom of the fixture. As the carton moves forward, its front end eventually contacts and presses against the limit switch 16 installed in the center of the baffle 21. After the limit switch 16 is triggered, it immediately sends a "carton in position" signal to the control system of the robot arm 5. Upon receiving the signal, the pressing cylinder 19 starts to move, and its output end drives the pressure plate 15 to move downward along the guide shaft 20, pressing and fixing the carton between the pallet 17 and the baffle 21, completing the clamping and positioning of the carton. At the same time, the sliding connection between the slide rail 13 and the slider 2 12 maintains the flexibility of the forward and backward movement, reserving space for the subsequent push-out action. At this time, the carton... The carton is already in the clamping state and ready to be transported to the palletizing position. Then, the robot arm 5 drives the entire clamp to move, moving the clamp holding the carton to the preset palletizing position. After reaching the target position, the control system controls the pressing cylinder 19 to retract, the pressure plate 15 to lift, and release the clamping force on the carton. At the same time, the pushing cylinder 10 under the connecting plate 9 is activated. Its output end drives the slide rail 13 forward through the cylinder floating joint 14, thereby causing the clamp bracket 18 to push the palletizing clamp 11 and the carton forward, realizing the smooth push out of the carton. After the pushing action is completed, the cylinder returns to the position, the clamp returns to the initial state, and the robot arm 5 moves the clamp back to the waiting area in front of the conveyor line, ready to perform the next round of palletizing tasks. The whole operation process is efficient and reliable, and adapts to the automatic handling and stacking needs of various specifications of cartons.

[0030] Furthermore, a sliding connection is achieved between the sliding sleeve 3 and the column 2. A motor 4 is installed on the outer wall of the sliding sleeve 3 to drive the clamp to move up and down in the vertical direction to adapt to the requirements of carton stacking at different heights. A slider 7 is set above the connecting plate 9. The outer wall of the robot arm 5 is slidably connected to the slider 7 and is driven by a motor 6 to extend and retract forward and backward, thereby driving the clamp to adjust forward and backward. The other end of the robot arm 5 is connected to the sliding sleeve 3, so that the entire clamp can rise and fall with the sliding sleeve 3 on the column 2. The bottom of the column 2 is slidably connected to the ground rail 1 to realize the horizontal movement of the clamp in the ground direction. This structure controls the clamp to achieve three-dimensional movement in the up, down, forward and backward and horizontal directions through motors 4 and 6, which effectively improves the flexibility of clamp positioning and the adaptability of palletizing operations.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carton palletizer fixture, comprising a connecting plate (9), characterized in that: The lower surface of the connecting plate (9) is fixedly connected to a slider two (12), the outer wall of the slider two (12) is slidably connected to a slide rail (13), and a pressing component is provided below the slide rail (13); The pressing assembly includes a pressure plate (15), which is located below the slide rail (13). A pusher cylinder (10) is fixedly connected below the connecting plate (9). A cylinder floating joint (14) is fixedly connected to the output end of the pusher cylinder (10). A clamp bracket (18) is fixedly connected to the outer wall of the slide rail (13). A pressing cylinder (19) is fixedly connected below the connecting plate (9). A guide shaft (20) is provided on the outer wall of the pressing cylinder (19). The pressure plate (15) is fixedly connected to the output end of the pressing cylinder (19). A baffle plate (21) is fixedly connected to the inner wall of the clamp bracket (18). A limit switch (16) is provided inside the baffle plate (21). A stacking clamp (11) is fixedly connected to the inner wall of the clamp bracket (18). A support plate (17) is fixedly connected to the outer wall of the stacking clamp (11).

2. The cardboard box palletizing machine fixture according to claim 1, characterized in that: A slider (7) is fixedly connected to the upper surface of the connecting plate (9). A robot arm (5) is slidably connected to the inner wall of the slider (7). A baffle (8) is fixedly connected to one end of the robot arm (5). A motor (6) is fixedly connected to the upper surface of the slider (7). The output end of the motor (6) is fixedly connected to the outer wall of the robot arm (5). A sliding sleeve (3) is fixedly connected to the other end of the robot arm (5). A column (2) is slidably connected to the inner wall of the sliding sleeve (3). A motor (4) is fixedly connected to the outer wall of the sliding sleeve (3). A ground rail (1) is slidably connected to the lower surface of the column (2).

3. A carton palletizer fixture according to claim 1, characterized in that: The cylinder floating joint (14) is set on the outer wall of the slide rail (13), and the outer wall of the pusher cylinder (10) is fixedly connected to the inner wall of the clamp bracket (18).

4. A carton palletizer fixture according to claim 1, characterized in that: The downward pressure cylinder (19) is located below the slide rail (13), and the guide shaft (20) is located above the pressure plate (15).

5. A carton palletizer fixture according to claim 1, characterized in that: The palletizing fixture (11) is located below the connecting plate (9), and the pallet (17) is located below the pressure plate (15).

6. A carton palletizer fixture according to claim 1, characterized in that: The second baffle (21) is located below the connecting plate (9), and the limit switch (16) is located on one side of the outer wall of the palletizing fixture (11).

7. A carton palletizer fixture according to claim 1, characterized in that: The pusher cylinder (10) is located on one side of the outer wall of the slide rail (13), and the slide rail (13) is located below the connecting plate (9).

8. A carton palletizer fixture according to claim 2, characterized in that: The robotic arm (5) is located on one side of the outer wall of the column (2), and the ground rail (1) is located below the robotic arm (5).