Winding film pressing and cutting device

Abstract

The utility model relates to the technical field of wrapping film packaging, and particularly discloses a wrapping film pressing and cutting device which comprises an adjusting seat, the adjusting seat is fixedly installed at the bottom of wrapping equipment, an installation bottom plate is fixedly installed on the adjusting seat, a telescopic plate with a sliding block is installed on the installation bottom plate in a sliding mode, and a first round air cylinder is fixedly installed on the installation bottom plate. Before the cutter cuts the winding film, the winding film abuts against the clamping arm connecting rod, then the clamping plates press the winding film on the clamping arm connecting rod through rotation of the rotating plate, then the cutter presses and cuts the winding film, the winding film is cut through the cutter, and the winding film is cut through the cutter. And the abutted position of the wrapping film is located near the cutting point, so that the wrapping film is tensioned and fixed at a proper position before pressing and cutting, and when pressing and cutting actions occur, enough stress points can be ensured, so that enough cutting force is provided, and thorough separation of the head and the tail of the wrapping film is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film packaging, and specifically designs a stretch film pressing and cutting device. Background Art

[0002] In modern cigarette production lines, steps such as sorting, film wrapping, sealing and cutting are completed continuously and automatically. Among these steps, especially in the film wrapping process, the film needs to be evenly wrapped on the cigarette strips and accurately cut by the sealing and cutting mechanism.

[0003] In the existing cigarette sorting and packaging process, a number of cigarettes are usually put into the wrapping film station after a series of packaging steps on the conveyor belt. The wrapping film servo motor starts to work, dragging the wrapping film to count and wrap the cigarette packs according to the set number of turns. When the wrapping film is wrapped as required, the system will enter the film cutting stage, and the cutter is usually driven by a cylinder to cut the wrapped film. In actual operation, the phenomenon of insufficient tension of the wrapping film often occurs. When the tension of the wrapping film is insufficient, the cutting operation with the cutter becomes extremely difficult. Due to insufficient tension, the wrapping film is prone to slack near the cutting point, resulting in incomplete cutting and even a serious problem that the head and tail of the wrapping film cannot be separated. This situation directly affects the subsequent wrapping quality and even causes shutdown for maintenance. Based on this, the inventor purposefully provides a wrapping film pressing and cutting device that ensures the separation of the head and tail when cutting the wrapping film. Utility Model Content

[0004] The utility model aims to address the deficiencies of the prior art and to provide a stretch film pressing and cutting device that ensures the separation of the head and tail when cutting the stretch film, so as to solve the problem in the prior art that the stretch film tension at the cutting point is insufficient, resulting in the cutter being unable to completely cut the stretch film.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A stretch film cutting device comprises an adjusting seat, wherein the adjusting seat is fixedly mounted on the bottom of the wrapping equipment, a mounting base plate is fixedly mounted on the adjusting seat, a telescopic plate with a slider is slidably mounted on the mounting base plate, a first circular cylinder is fixedly mounted on the mounting base plate, a movable end of the first circular cylinder is connected to the telescopic plate with the slider, a clamping arm connecting rod is fixedly mounted on the telescopic plate with the slider, a rotating plate is rotatably connected to the telescopic plate with the slider, the rotating plate is driven to rotate by a driving assembly, a clamping plate is fixedly mounted on one side of the rotating plate, a double-axis cylinder is arranged on the other side of the rotating plate, the double-axis cylinder is connected to a control box, a connecting plate is fixedly mounted on the movable end of the double-axis cylinder, a cutter is fixedly mounted on the connecting plate, the clamping arm connecting rod and the clamping plate are located at the same horizontal height, and when the rotating plate rotates, the clamping plate and the clamping arm connecting rod abut against the stretch film.

[0007] As a further optimization or improvement of this solution.

[0008] The driving assembly includes a rotating core shaft, a swing arm connecting block, a push block and a second circular cylinder. The rotating core shaft is fixedly mounted on a telescopic plate with a slider. One end of the rotating plate is sleeved on the rotating core shaft, and the rotating plate rotates around the rotating core shaft. The second circular cylinder is rotatably mounted on the clamp arm connecting rod through a fixed assembly. The second circular cylinder is connected to the control box. The push block is fixedly mounted on the movable end of the second circular cylinder. One end of the swing arm connecting block is connected to the rotating plate, and the other end of the swing arm connecting block is rotatably connected to the push block.

[0009] As a further optimization or improvement of this solution.

[0010] The fixing assembly comprises a mounting block and a cylinder. One end of the clamp arm connecting rod is connected to the mounting block. The cylinder is rotatably mounted on the mounting block. The second circular cylinder is fixedly mounted in the cylinder.

[0011] As a further optimization or improvement of this solution.

[0012] Two slide rails are fixedly installed on the installation base plate, two U-force pads are arranged between the two slide rails, the U-force pads are fixedly installed on the installation base plate, and the bottom of the telescopic plate with sliders is slidably connected to the slide rails.

[0013] As a further optimization or improvement of this solution.

[0014] A white adhesive strip is fixedly mounted on one side of the clamp arm connecting rod that contacts the wrapping film.

[0015] As a further optimization or improvement of this solution.

[0016] An air blowing pipe is fixedly installed on the connecting plate, and an air outlet of the air blowing pipe faces the cutting point.

[0017] As a further optimization or improvement of this solution.

[0018] The side of the rotating plate away from the clamping plate is fixedly connected with an L-shaped plate, and the double-axis cylinder is fixedly installed on the L-shaped plate.

[0019] As a further optimization or improvement of this solution.

[0020] Both ends of the adjustment seat are plugged with plug-in plates, which are fixedly connected to the bottom of the winding device. The adjustment seat is provided with a first waist-shaped groove, and the mounting base is provided with a second waist-shaped groove. The mounting base is connected to the adjustment seat by screws, and the screws pass through the first waist-shaped groove and the second waist-shaped groove.

[0021] Beneficial effects of the utility model:

[0022] 1. Before the cutter cuts the stretch film, the stretch film is abutted against the clamp arm connecting rod, and then the clamp plate is pressed against the stretch film on the clamp arm connecting rod by rotating the rotating plate, and then the stretch film is pressed and cut by the cutter, and the position where the stretch film is abutted is located near the cutting point, so that before the pressure cutting is performed, the stretch film has been tightened and fixed in an appropriate position, so that when the pressure cutting action occurs, it can be guaranteed that there are enough force points, thereby providing enough cutting force to achieve complete separation of the head and tail of the stretch film.

[0023] 2. In each round of wrapping and packaging cycle of the utility model, once the wrapping film is successfully cut, it will still be firmly clamped by the clamp arm connecting rod and the clamping plate to ensure that the wrapping film will not fall off. Subsequently, the wrapped cigarette pack is smoothly transmitted to the next process through the transmission line. When a new cigarette enters the wrapping station, the wrapping equipment will automatically wrap it according to the preset number of circles. When it is wrapped to 3 / 4 circles, the control box will issue instructions in time to make the double-axis cylinder, the rotating plate and the first circular cylinder return to the initial position one after another to avoid any interference or obstruction in the subsequent wrapping process. This cycle is repeated to form a continuous and automated wrapping and packaging-film cutting workflow, which greatly improves production efficiency and packaging quality.

[0024] 3. After the cutter completes the pressing and cutting action, the utility model uses the airflow blown out by the blowing pipe to quickly separate the head and tail parts of the stretch film to prevent the stretch film generated by cutting from still being entangled with each other. This design ensures that the stretch film can be smoothly processed for subsequent packaging, while improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 This is a schematic diagram of the installation base plate structure of the utility model.

[0028] Figure 3 It is a schematic diagram of the rotating plate structure of the utility model.

[0029] Figure 4 This is a schematic diagram of the connecting plate structure of the utility model.

[0030] The figure shows:

[0031] 1. Adjusting seat; 2. Mounting base plate; 3. First circular cylinder; 4. Telescopic plate with slider; 5. Clamp arm connecting rod; 6. Second circular cylinder; 7. Push block; 8. Swing arm connecting block; 9. Rotating mandrel; 10. Rotating plate; 11. Clamp plate; 12. Double-axis cylinder; 13. Connecting plate; 14. Cutter; 15. L-shaped plate; 16. Slide rail; 17. Excellent pad; 18. Mounting block; 19. Cylinder; 20. White rubber strip; 21. Blowing pipe; 22. First waist-shaped groove; 23. Second waist-shaped groove; 24. Plug-in plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 4 , a stretch film pressing and cutting device, which includes an adjusting seat 1, the adjusting seat 1 is fixedly mounted on the bottom of the winding equipment, a mounting base 2 is fixedly mounted on the adjusting seat 1, a telescopic plate 4 with a slider is slidably mounted on the mounting base 2, a first circular cylinder 3 is fixedly mounted on the mounting base 2, the movable end of the first circular cylinder 3 is connected to the telescopic plate 4 with a slider, a clamping arm connecting rod 5 is fixedly mounted on the telescopic plate 4 with a slider, a rotating plate 10 is rotatably connected to the telescopic plate 4 with a slider, the rotating plate 10 is driven to rotate by a driving assembly, a clamping plate 11 is fixedly mounted on one side of the rotating plate 10, a double-axis cylinder 12 is arranged on the other side of the rotating plate 10, the double-axis cylinder 12 is connected to the control box, a connecting plate 13 is fixedly mounted on the movable end of the double-axis cylinder 12, a cutter 14 is fixedly mounted on the connecting plate 13, the clamping arm connecting rod 5 and the clamping plate 11 are located at the same horizontal height, and when the rotating plate 10 rotates, the clamping plate 11 and the clamping arm connecting rod 5 abut the stretch film.

[0034] In a specific embodiment, it should be noted that the winding equipment, control box, first circular cylinder 3 and dual-axis cylinder 12 described in this application are all prior art, and this application does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of this application.

[0035] The working principle of the utility model is as follows: after the cigarette strips to be wrapped and packaged enter the wrapping station, they are counted and wrapped according to the set number of turns by the wrapping equipment. After the wrapping is completed, the control box controls the first circular cylinder 3 to start, and the telescopic plate 4 with the slider is pushed forward. The telescopic plate 4 with the slider moves forward on the mounting base plate 2. At this time, the clamp arm connecting rod 5 will also move forward to the wrapping area. At this time, the wrapping film abuts against the clamp arm connecting rod 5 during the deceleration stop. Then, the driving assembly drives the rotating plate 10 to rotate 90 degrees into place, so that the clamp plate 11 presses the wrapping film on the clamp arm connecting rod 5, and the double-axis cylinder 12 magnetically opens. When the switch detects the signal, the control box immediately starts the double-axis cylinder 12 and pushes the connecting plate 13 forward. At this time, the cutter 14 installed on the connecting plate 13 cuts the stretch film to separate the head and the tail. After the cutting is completed, the wrapped cigarette package continues to be transmitted through the transmission line. When the next cigarette enters the winding station for winding, at least 3 / 4 of a circle of winding is completed by the winding equipment. At this time, the control box will return the double-axis cylinder 12, the rotating plate 10 and the first circular cylinder 3 to their original positions in turn to avoid affecting the subsequent winding work. When the stretch film needs to be cut again, just repeat the above steps.

[0036] Before the cutter 14 cuts the stretch film, the stretch film is abutted against the clamp arm connecting rod 5, and then the clamp plate 11 presses the stretch film on the clamp arm connecting rod 5 by rotating the rotating plate 10, and then the stretch film is cut by the cutter 14, and the position where the stretch film is abutted is located near the cutting point, so that before the cutting, the stretch film has been tightened and fixed in an appropriate position, so that when the cutting action occurs, it can be guaranteed that there are enough force points, thereby providing enough cutting force to achieve complete separation of the head and tail of the stretch film.

[0037] Specifically, the driving assembly includes a rotating core shaft 9, a swing arm connecting block 8, a push block 7 and a second circular cylinder 6. The rotating core shaft 9 is fixedly mounted on the telescopic plate 4 with a slider. One end of the rotating plate 10 is sleeved on the rotating core shaft 9, and the rotating plate 10 rotates around the rotating core shaft 9. The second circular cylinder 6 is rotatably mounted on the clamping arm connecting rod 5 through a fixed assembly. The second circular cylinder 6 is connected to the control box. The push block 7 is fixedly mounted on the movable end of the second circular cylinder 6. One end of the swing arm connecting block 8 is connected to the rotating plate 10, and the other end of the swing arm connecting block 8 is rotatably connected to the push block 7.

[0038] In a specific embodiment, it should be noted that the second circular cylinder 6 described in the present application is a prior art, and the present application does not improve it. Therefore, it is not necessary to disclose its specific mechanical structure and circuit structure, and it does not affect the integrity of the present application; when the control box issues an instruction to activate the second circular cylinder 6, the second circular cylinder 6 generates a thrust to push the push block 7 forward. In this process, the swing arm connecting block 8 connected to the push block 7 is also subjected to force transmission, and begins to drive the rotating plate 10 to rotate around the rotating core shaft 9. As the rotating plate 10 rotates, one end of the swing arm connecting block 8 also rotates inside the push block 7. At this time, a 90-degree angle is formed between the two, and the rotating plate 10 also rotates 90 degrees; when the action of the second circular cylinder 6 ends, that is, when the second circular cylinder 6 contracts, it will pull the swing arm connecting block 8 and the rotating plate 10 back to the original position. At this time, the push block 7 and the swing arm connecting block 8 are almost arranged in a straight line. Through this power transmission mechanism, the rotating plate 10 can rotate quickly around the rotating core shaft 9, thereby realizing rapid clamping of the wrapping film, effectively improving the response speed and work efficiency of the system.

[0039] Such a design enables the rotating plate 10 to switch quickly between two extreme positions, greatly improving the operational flexibility and response speed. In addition, since the rotation angle of the rotating plate 10 is precisely controlled at 90 degrees, this helps to improve the consistency and repeatability of the packaging process, thereby ensuring the accuracy and reliability of each packaging cycle.

[0040] More specifically, the fixing assembly includes a mounting block 18 and a cylinder 19 , one end of the clamp arm connecting rod 5 is connected to the mounting block 18 , the cylinder 19 is rotatably mounted on the mounting block 18 , and the second circular cylinder 6 is fixedly mounted in the cylinder 19 .

[0041] In a specific embodiment, when the second circular cylinder 6 extends or contracts, it not only drives the rotating plate 10 to rotate, but also due to the reaction principle of force, the second circular cylinder 6 itself will experience a reaction force, which will cause the cylinder 19 to rotate a small angle on the mounting block 18. This interaction ensures that the rotating plate 10 can rotate according to a preset path and speed, avoiding the problem of difficulty in rotating the rotating plate 10 due to the fixed position of the second circular cylinder 6.

[0042] At the same time, it should be noted that two slide rails 16 are fixedly installed on the installation base plate 2, two high-force pads 17 are arranged between the two slide rails 16, the high-force pads 17 are fixedly installed on the installation base plate 2, and the bottom of the telescopic plate 4 with sliders is slidably connected to the slide rails 16.

[0043] In a specific embodiment, the setting of the slide rail 16 provides a clear and smooth sliding path for the telescopic plate 4 with a slider, ensuring that it can move smoothly on the mounting base plate 2. At the same time, when the telescopic plate 4 with a slider slides on the mounting base plate 2, the force pad 17 can effectively absorb and alleviate the vibration and impact generated thereby, thereby significantly reducing the noise generated during operation.

[0044] More specifically, a white adhesive strip 20 is fixedly mounted on the side of the clamp arm connecting rod 5 that contacts the wrapping film.

[0045] In a specific embodiment, since the wrapping film is self-adhesive, adding a white adhesive strip 20 on the side where the clamp arm connecting rod 5 contacts the wrapping film can enhance the adhesion between the film and the clamp arm connecting rod 5, ensuring that the clamp arm connecting rod 5 is clamped more firmly.

[0046] Meanwhile, it should be noted that an air blowing pipe 21 is fixedly mounted on the connecting plate 13 , an air inlet of the air blowing pipe 21 is connected to an air supply device through a hose, and an air outlet of the air blowing pipe 21 faces the cutting point.

[0047] In a specific embodiment, the air supply device may be an air pump or other components capable of blowing air, which is not specifically limited in this embodiment; when the cutter 14 performs the pressure-cutting operation of the stretch film, the control box starts the air supply device and activates the air blowing pipe 21, and the air blowing pipe 21 blows out airflow at the cutting point. The purpose is to use the blown airflow to quickly separate the head and tail parts of the stretch film after the cutter 14 completes the pressure-cutting action, so as to prevent the stretch film generated by the cutting from still being entangled with each other. This design ensures that the stretch film can be smoothly packaged in the subsequent packaging process, while improving production efficiency and product quality.

[0048] Specifically, an L-shaped plate 15 is fixedly connected to a side of the rotating plate 10 away from the clamping plate 11 , and the dual-axis cylinder 12 is fixedly mounted on the L-shaped plate 15 .

[0049] In a specific embodiment, the L-shaped plate 15 serves as a load-bearing platform and can effectively disperse most of the weight borne by the rotating plate 10. This weight-dispersing design ensures the stability of the connection structure and reduces the risk of structural deformation or damage due to weight concentration.

[0050] More specifically, both ends of the adjustment seat 1 are connected with a plug-in board 24, the plug-in board 24 is fixedly connected to the bottom of the winding device, the adjustment seat 1 is provided with a first waist-shaped groove 22, the mounting base plate 2 is provided with a second waist-shaped groove 23, the mounting base plate 2 is connected to the adjustment seat 1 by screws, and the screws pass through the first waist-shaped groove 22 and the second waist-shaped groove 23.

[0051] In a specific embodiment, the user can easily change the installation position of the adjustment seat 1 at the bottom of the winding device by adjusting the length of the plug-in board 24 inserted inside the adjustment seat 1. When the position of the mounting base 2 needs to be changed, it is only necessary to loosen the screws at the first waist-shaped groove 22 and the second waist-shaped groove 23, and then slide the mounting base 2 on the adjustment seat 1 to a new position, and then fix it again, which greatly simplifies subsequent changes and maintenance work, not only saving time but also reducing maintenance costs.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A stretch film cutting device, characterized in that: The invention comprises an adjustment seat (1), wherein the adjustment seat (1) is fixedly mounted on the bottom of the winding device, a mounting base plate (2) is fixedly mounted on the adjustment seat (1), a telescopic plate (4) with a slider is slidably mounted on the mounting base plate (2), a first circular cylinder (3) is fixedly mounted on the mounting base plate (2), a movable end of the first circular cylinder (3) is connected to the telescopic plate (4) with a slider, a clamping arm connecting rod (5) is fixedly mounted on the telescopic plate (4) with the slider, a rotating plate (10) is rotatably connected to the telescopic plate (4) with the slider, and the rotating plate (10) is fixedly mounted on the mounting base plate (2). 10) is driven to rotate by a driving assembly, a clamping plate (11) is fixedly mounted on one side of the rotating plate (10), a double-axis cylinder (12) is arranged on the other side of the rotating plate (10), the double-axis cylinder (12) is connected to a control box, a connecting plate (13) is fixedly mounted on the movable end of the double-axis cylinder (12), a cutter (14) is fixedly mounted on the connecting plate (13), the clamping arm connecting rod (5) and the clamping plate (11) are located at the same horizontal height, and when the rotating plate (10) rotates, the clamping plate (11) and the clamping arm connecting rod (5) abut against the wrapping film.

2. The stretch film cutting device according to claim 1, characterized in that: The driving assembly comprises a rotating mandrel (9), a swing arm connecting block (8), a push block (7) and a second circular cylinder (6); the rotating mandrel (9) is fixedly mounted on a telescopic plate (4) with a slider; one end of a rotating plate (10) is sleeved on the rotating mandrel (9), and the rotating plate (10) rotates around the rotating mandrel (9) as an axis; the second circular cylinder (6) is rotatably mounted on the clamp arm connecting rod (5) through a fixing assembly; the second circular cylinder (6) is connected to a control box; the push block (7) is fixedly mounted on a movable end of the second circular cylinder (6); one end of the swing arm connecting block (8) is connected to the rotating plate (10); and the other end of the swing arm connecting block (8) is rotatably connected to the push block (7).

3. The stretch film cutting device according to claim 2, characterized in that: The fixing assembly comprises a mounting block (18) and a cylinder (19); one end of the clamp arm connecting rod (5) is connected to the mounting block (18); the cylinder (19) is rotatably mounted on the mounting block (18); and the second circular cylinder (6) is fixedly mounted in the cylinder (19).

4. The stretch film cutting device according to claim 1, characterized in that: Two slide rails (16) are fixedly mounted on the mounting base plate (2), two high-force pads (17) are arranged between the two slide rails (16), the high-force pads (17) are fixedly mounted on the mounting base plate (2), and the bottom of the telescopic plate (4) with a slider is slidably connected to the slide rails (16).

5. The stretch film cutting device according to claim 1, characterized in that: A white adhesive strip (20) is fixedly mounted on the side of the clamp arm connecting rod (5) that contacts the wrapping film.

6. The stretch film cutting device according to claim 1, characterized in that: An air blowing pipe (21) is fixedly mounted on the connecting plate (13); an air inlet of the air blowing pipe (21) is connected to an air supply device via a hose, and an air outlet of the air blowing pipe (21) faces the cutting point.

7. The stretch film cutting device according to claim 1, characterized in that: An L-shaped plate (15) is fixedly connected to the side of the rotating plate (10) away from the clamping plate (11), and the double-axis cylinder (12) is fixedly mounted on the L-shaped plate (15).

8. The stretch film cutting device according to claim 1, characterized in that: Both ends of the adjustment seat (1) are plugged with a plug-in board (24), the plug-in board (24) is fixedly connected to the bottom of the winding device, the adjustment seat (1) is provided with a first waist-shaped groove (22), the mounting base plate (2) is provided with a second waist-shaped groove (23), the mounting base plate (2) is connected to the adjustment seat (1) by means of screws, and the screws pass through the first waist-shaped groove (22) and the second waist-shaped groove (23).

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