A buffer type cartoning machine tongue folding cam mechanism
By introducing a buffered flap swing block linkage mechanism into the cartoning machine, flexible bending is achieved using springs and limit rods, and the bending amplitude is controlled by an adjustable turntable. This solves the problems of low yield and cumbersome operation when the cartoning machine is running at high speed, and improves the versatility and production efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIFANG NORD PACKAGING MASCH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-12
AI Technical Summary
The existing cartoning machine's folding and bending mechanism lacks flexibility and the ability to adjust the bending amplitude, resulting in low yield and cumbersome operation when the carton is running at high speed.
The system employs a buffer-type folding tongue swing block linkage mechanism. By incorporating springs and limit rods within the folding tongue swing block, flexible bending is achieved. Adjustable adjustment components are installed on the turntable to precisely control the bending amplitude.
It improves the stability and yield of cardboard box flaps, reduces the risk of cardboard box damage, adapts to the needs of cardboard boxes of different specifications, and improves production efficiency.
Smart Images
Figure CN224349180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment technology, specifically a buffer-type cartoning machine flap swing block linkage mechanism. Background Technology
[0002] After the product is placed into the carton, the automatic cartoning machine needs to precisely fold the flaps (such as front flaps and side flaps) of the carton to seal the box. Among these steps, bending the side flaps is a key process, requiring a balance of efficiency, stability, and gentleness, especially in high-speed operation. Traditional mechanisms achieve side flap folding through mechanical forced bending, but rigid contact can easily damage the carton or cause internal product displacement, affecting the finished product yield.
[0003] In existing technologies, tongue-folding actions mainly rely on two types of mechanisms:
[0004] 1. Fixed bending plate / guide rail: During the paper box conveying process, the side tongue is rigidly scraped along the bending plate at a fixed angle to complete the folding, without active drive components;
[0005] 2. Cylinder / cam driven swing block: The rigid swing block is pushed by a cylinder or cam to impact the side tongue in one direction, so as to achieve one-time pressing.
[0006] Both of these methods are passive or simple active bending, with the movement trajectory and stroke of the executing components (bending plate or swing block) being fixed and unable to be dynamically adjusted according to the cardboard box specifications.
[0007] The aforementioned existing technology has significant drawbacks:
[0008] Lack of flexibility: Rigid bending mechanisms cannot adapt to small deviations in the cardboard box or changes in material elasticity, which can easily lead to over-bending of the folding tongue (cabinet crushing) or under-bending (incomplete sealing). Especially during high-speed continuous operation, the defect rate increases significantly.
[0009] The bending radius is not adjustable: the tilt angle of the fixed bending plate and the impact stroke of the swing block are preset values. When switching to cardboard boxes of different sizes, thicknesses or fold lengths, the machine must be stopped to replace the corresponding parts or the position of the mechanism must be manually adjusted, which is cumbersome and reduces production efficiency. Utility Model Content
[0010] The purpose of this invention is to provide a buffered cartoning machine flap swing block linkage mechanism to solve the problems mentioned in the background art.
[0011] To achieve the above objectives, this utility model provides the following technical solution:
[0012] A buffer-type cartoning machine flap swing block linkage mechanism includes a support plate, a slider fixedly connected to the rear end of the upper surface of the support plate, a sliding rod movably connected inside the slider, and a rotating plate rotatably connected to the front end of the upper surface of the sliding rod.
[0013] The rear end of the slide bar is provided with a folding tongue swing block, the front end of the lower surface of the support plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a turntable, and the upper surface of the turntable is radially provided with an adjustment component.
[0014] As a further embodiment of this utility model: the folding tongue block includes a main board and an end plate located behind the main board. Each of the four corners of the front surface of the end plate is fixedly connected to a limiting rod, and multiple springs are fixedly connected to the inner side of the four limiting rods on the front surface of the end plate.
[0015] As a further embodiment of this utility model: the adjusting component includes a C-shaped plate, a screw is movably connected through the front surface of the C-shaped plate, a screw sleeve is threadedly sleeved on the outside of the screw inside the C-shaped plate, a limit rod is movably connected through the inside of the screw sleeve below the screw, and a positioning bolt is threadedly connected to the upper surface of the screw sleeve.
[0016] As a further improvement of this utility model, the turntable is located above the support plate.
[0017] As a further embodiment of this utility model: the rear end of the slide rod is fixedly connected to the front surface of the motherboard, the limiting rod is movably embedded in the rear surface of the motherboard, and the front end of the spring is fixedly connected to the rear surface of the motherboard.
[0018] As a further embodiment of this utility model: the C-shaped plate is fixed to the upper surface of the turntable, and the C-shaped plate is located at the radial position of the turntable; the rear end of the screw is rotatably connected to the inner rear surface of the C-shaped plate; the end of the second limiting rod is fixed to the inner front and rear surfaces of the C-shaped plate; and the front end of the rotating plate is movably sleeved on the outside of the positioning bolt.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] This invention achieves a crucial buffering function by incorporating a spring and a limiting rod between the main board and end plate of the flap swing block. When the end plate of the flap swing block contacts and pushes the pre-bent carton side flap for final bending, the spring absorbs the impact energy and undergoes elastic compression, while the limiting rod precisely guides the rearward movement of the main board relative to the end plate. This design transforms traditional rigid impact into flexible contact, significantly reducing potential damage (such as indentations, tears, or displacement of internal products) to the carton side flap and its internal components during flap folding, making it particularly suitable for high-speed operation. Furthermore, the buffering mechanism allows the mechanism to adapt to minor positional deviations or thickness variations in the carton or flap, improving the stability and reliability of the bending action and effectively increasing the yield and quality of the finished product.
[0021] This invention achieves convenient and precise adjustment of the bending radius by setting a radially adjustable adjusting component on the turntable and movably connecting it to the front end of the turntable. Rotating the screw drives the screw sleeve to move smoothly back and forth along the inner side of the C-shaped plate under the constraint of the second limiting rod, thereby changing the radial distance of the positioning bolt relative to the center of the turntable. Since the positioning bolt is connected to the front end of the turntable, the change in its position directly changes the radius of the movement trajectory of the front end of the turntable, thus controlling the stroke of the driving slide rod moving back and forth within the slider when the turntable swings. Ultimately, this determines the depth to which the folding tongue swing block moves backward to push the side tongue of the carton. This adjustment mechanism is ingeniously designed, easy to operate, and can quickly adapt to the different bending depth requirements of different sized cartons without replacing parts, greatly improving the versatility and production efficiency of the equipment. Attached Figure Description
[0022] Figure 1 A schematic diagram of a linkage mechanism for a buffer-type cartoning machine with a flap swing block;
[0023] Figure 2 This is a schematic diagram of the structure of the flapping block component in a buffer-type cartoning machine's flapping block linkage mechanism.
[0024] Figure 3 This is a schematic diagram of the adjusting component in the linkage mechanism of the flap swing block of a buffer cartoning machine.
[0025] In the diagram: 1. Support plate; 2. Slider; 3. Slide rod; 4. Rotating plate; 5. Folding tongue swing block; 6. Main board; 7. End plate; 8. Limiting rod one; 9. Spring; 10. Motor; 11. Turntable; 12. Adjusting component; 13. C-shaped plate; 14. Screw; 15. Screw sleeve; 16. Limiting rod two; 17. Positioning bolt; 18. Paper box side tongue; 19. Pre-processing bending plate. Detailed Implementation
[0026] Please see Figure 1 and Figure 2In this embodiment of the present invention, a buffer-type cartoning machine flap swing block linkage mechanism includes a support plate 1, a turntable 11 located above the support plate 1, a slider 2 fixedly connected to the rear end of the upper surface of the support plate 1, a sliding rod 3 movably connected inside the slider 2, and a rotating plate 4 rotatably connected to the front end of the upper surface of the sliding rod 3.
[0027] The rear end of the slide bar 3 is provided with a folding tongue swing block 5. The folding tongue swing block 5 includes a main board 6 and an end plate 7 located behind the main board 6. The rear end of the slide bar 3 is fixed to the front surface of the main board 6. Limiting rods 8 are fixed to the four corners of the front surface of the end plate 7. The limiting rods 8 are movably embedded in the rear surface of the main board 6. Multiple springs 9 are fixed to the front surface of the end plate 7 inside the four limiting rods 8. The front end of the springs 9 is fixed to the rear surface of the main board 6. A motor 10 is fixed to the front end of the lower surface of the support plate 1. A turntable 11 is fixed to the output end of the motor 10. An adjustment component 12 is radially provided on the upper surface of the turntable 11.
[0028] Slide bar 3 is used to move back and forth inside slider 2;
[0029] After the pre-bending plate 19 pre-bends the paper box side tongue 18 during the conveying process, the folding tongue swing block 5 moves back and forth to fully bend the paper box side tongue 18.
[0030] When end plate 7 contacts paper box side tongue 18, the impact force pushes end plate 7 forward, compresses spring 9 and drives limit rod 8 to slide along the guide hole on the rear surface of main plate 6; the elastic force of spring 9 is transmitted to paper box side tongue 18 through main plate 6 to achieve flexible bending; after bending is completed, turntable 11 reverses and pulls slide rod 3 forward, spring 9 pushes end plate 7 to reset, and limit rod 8 limits the maximum separation distance between main plate 6 and end plate 7;
[0031] When there is a deviation in the thickness of the cardboard box, the compression of spring 9 changes adaptively to ensure that the folding force is constant and to avoid crushing or insufficient bending.
[0032] When the turntable 11 rotates, it can drive the slide bar 3 to move back and forth through the adjusting part 12 and the rotating plate 4, thereby driving the folding tongue swing block 5 to move back and forth.
[0033] exist Figure 1 and Figure 3In the middle: the adjusting component 12 includes a C-shaped plate 13, which is fixed to the upper surface of the turntable 11 and is located at the radial position of the turntable 11. A screw 14 is movably connected through the front surface of the C-shaped plate 13. The rear end of the screw 14 is rotatably connected to the inner rear surface of the C-shaped plate 13. A screw sleeve 15 is threadedly sleeved on the outside of the screw 14 and located inside the C-shaped plate 13. A limit rod 16 is movably connected through the inside of the screw sleeve 15 and located below the screw 14. The end of the limit rod 16 is fixed to the inner front and rear surfaces of the C-shaped plate 13. A positioning bolt 17 is threadedly connected to the upper surface of the screw sleeve 15. The front end of the turntable 4 is movably sleeved on the outside of the positioning bolt 17.
[0034] C-shaped plate 13 faces the center of turntable 11;
[0035] The screw 14 and the inner rear surface of the C-shaped plate 13 are rotatably connected by a bearing;
[0036] Rotating the screw 14 can drive the screw sleeve 15 to move forward or backward, adjusting the horizontal distance between the front end of the rotating plate 4 and the center of the turntable 11, thereby adjusting the forward and backward movement of the slide bar 3, which in turn facilitates the bending range of the paper box side tongue 18.
[0037] The lower end of the outer surface of the positioning bolt 17 is threaded, while the part exposed outside the threaded sleeve 15 is unthreaded. When the positioning bolt 17 is tightened, its unthreaded section is fitted inside the front end of the rotating plate 4 to achieve a limit.
[0038] The working principle of this utility model is as follows: When the paper box side tongue 18 moves to the pre-processing bending plate 19 along the conveyor line, it is pre-bent; after pre-bending, the paper box side tongue 18 continues to be conveyed to the folding tongue station. At this time, the motor 10 drives the turntable 11 to rotate. The turntable 11 pushes the front end of the rotating plate 4 through the radially installed adjusting member 12, forcing the rotating plate 4 to swing around its hinge point with the slide rod 3; the swing of the rotating plate 4 drives the slide rod 3 to slide backward in the slider 2, thereby pushing the main plate 6 of the folding tongue swing block 5 to move towards the paper box side tongue 18; when the end plate 7 contacts the paper box side tongue 18... When the spring 9 is compressed and contracts, it provides a buffering force through the guide of the limiting rod 8, causing the main plate 6 and the end plate 7 to move relative to each other, thus flexibly bending the side tongue 18 of the paper box completely. When the turntable 11 continues to rotate, the adjusting component 12 pulls the rotating plate 4 to reset, and the slide rod 3 drives the folding tongue swing block 5 to move forward and disengage from the paper box. When it is necessary to adjust the bending amplitude, the rotating screw 14 drives the screw sleeve 15 to move back and forth along the limiting rod 16, changing the distance between the positioning bolt 17 and the center of the turntable 11, thereby adjusting the reciprocating stroke of the slide rod 3 to adapt to the bending requirements of the side tongue 18 of different paper box specifications.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A buffered cartoning machine flap swing block linkage mechanism, comprising a support plate (1), wherein a slider (2) is fixedly connected to the rear end of the upper surface of the support plate (1), a sliding rod (3) is movably connected through the inside of the slider (2), and a rotating plate (4) is rotatably connected to the front end of the upper surface of the sliding rod (3). Its features are, The rear end of the slide bar (3) is provided with a folding tongue block (5), the front end of the lower surface of the support plate (1) is fixedly connected to a motor (10), the output end of the motor (10) is fixedly connected to a turntable (11), and the upper surface of the turntable (11) is radially provided with an adjusting member (12).
2. The buffer-type cartoning machine flap swing block linkage mechanism according to claim 1, characterized in that, The folding tongue block (5) includes a main board (6) and an end plate (7) located behind the main board (6). Limiting rods (8) are fixed to the four corners of the front surface of the end plate (7), and multiple springs (9) are fixed to the inner side of the four limiting rods (8) on the front surface of the end plate (7).
3. The buffer-type cartoning machine flap swing block linkage mechanism according to claim 1, characterized in that, The adjusting component (12) includes a C-shaped plate (13), a screw (14) is movably connected to the front surface of the C-shaped plate (13), a screw sleeve (15) is threadedly sleeved on the outside of the screw (14) and located inside the C-shaped plate (13), a limit rod (16) is movably connected to the inside of the screw sleeve (15) below the screw (14), and a positioning bolt (17) is threadedly connected to the upper surface of the screw sleeve (15).
4. The buffer-type cartoning machine flap swing block linkage mechanism according to claim 1, characterized in that, The turntable (11) is located above the support plate (1).
5. The buffer-type cartoning machine flap swing block linkage mechanism according to claim 2, characterized in that, The rear end of the slide bar (3) is fixed to the front surface of the main board (6), the limiting rod (8) is movably embedded in the rear surface of the main board (6), and the front end of the spring (9) is fixed to the rear surface of the main board (6).
6. The buffer-type cartoning machine flap swing block linkage mechanism according to claim 3, characterized in that, The C-shaped plate (13) is fixed to the upper surface of the turntable (11), and the C-shaped plate (13) is located at the radial position of the turntable (11). The rear end of the screw (14) is rotatably connected to the inner rear surface of the C-shaped plate (13). The end of the limiting rod (16) is fixed to the inner front and rear surfaces of the C-shaped plate (13). The front end of the rotating plate (4) is movably sleeved on the outside of the positioning bolt (17).