A film cutting device

Abstract

The utility model discloses a kind of film cutting device, including with the pressing assembly of rack connection and cutting assembly, the pressing assembly includes fixedly arranged pallet;The cutting assembly is set to the discharging side of the pressing assembly, the cutting assembly includes fixedly arranged crossbeam, with the sliding connection of the crossbeam mounting seat, with the cutting motor of the mounting seat connection, set to the circular knife of the cutting motor drive end, first drive component for driving the reciprocating linear motion of the mounting seat is arranged between the crossbeam with the mounting seat, the sliding direction of the mounting seat is perpendicular to the feed direction of film;The circular knife is immediately arranged with the pressing assembly, the cutting edge height of the circular knife is lower than the upper surface of the pallet. Above-mentioned film cutting device structure is reasonable, can realize the flexible cutting of film, reduce noise pollution, guarantee worker's physical and mental health.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a film cutting device. Background Technology

[0002] In the existing technology, after the film is wound to the length required by the customer, it needs to be cut and unwound. Common cutting devices use a flying knife device to cut the film, which moves quickly from one side of the film to the other side to perform the cutting operation. Because the flying knife is too fast, it will directly hit the frame when it moves to the other side. This not only causes noise pollution, but also causes the entire cutting device to loosen due to long-term impact, affecting the cutting accuracy.

[0003] Therefore, it is necessary to improve the existing film cutting devices. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a film cutting device that can achieve flexible cutting of films, reduce noise pollution, and protect the physical and mental health of workers.

[0005] To achieve the above technical effects, the technical solution of this utility model is as follows: a film cutting device, including a pressing assembly and a cutting assembly connected to a frame, wherein the pressing assembly includes a fixedly mounted tray; the cutting assembly is disposed on the discharge side of the pressing assembly, the cutting assembly includes a fixedly mounted crossbeam, a mounting base slidably connected to the crossbeam, a cutting motor connected to the mounting base, and a circular blade disposed at the drive end of the cutting motor; a first driving assembly for driving the mounting base to perform reciprocating linear motion is disposed between the crossbeam and the mounting base, the sliding direction of the mounting base is perpendicular to the film feeding direction; the circular blade is disposed adjacent to the pressing assembly, and the blade height of the circular blade is lower than the upper surface of the tray.

[0006] According to one embodiment of the present invention, the mounting base is fixedly connected to the cutting motor via a connecting column, and the connecting column is arranged adjacent to the circular blade.

[0007] According to one embodiment of the present invention, the first drive assembly includes a drive wheel and a tension wheel respectively disposed at both ends of the crossbeam, and a timing belt is provided over the drive wheel and the tension wheel, and the mounting base is fixedly connected to the timing belt.

[0008] According to one embodiment of the present invention, the crossbeam is fixedly provided with a guide rail, and the two ends of the guide rail are fixedly provided with limit plates. The outer wall of the limit plate is fixedly provided with an induction switch; the two sides of the mounting base are provided with induction strips, and the limit plate is provided with a slot for the induction strips to pass through.

[0009] According to one embodiment of the present invention, the crossbeam is provided with a drag chain groove, and a drag chain is provided between the drag chain groove and the cutting motor.

[0010] According to one embodiment of the present invention, the pressing assembly further includes a pressing plate, a rubber strip fixedly disposed below the pressing plate, and a second driving assembly for driving the pressing plate to rise and fall.

[0011] According to one embodiment of the present invention, the second driving assembly includes a fixedly disposed cylinder seat and a lifting cylinder fixedly connected to the cylinder seat. Two sets of lifting cylinders are provided. A connecting strip is fixedly disposed on the side wall of the pressure plate. The piston rod of the lifting cylinder is fixedly connected to the connecting strip. The two sets of lifting cylinders are respectively disposed on both sides of the connecting strip.

[0012] According to one embodiment of the present invention, a linear bearing is fixedly provided on the cylinder seat, and the piston rod of the lifting cylinder passes through the linear bearing.

[0013] The advantages and beneficial effects of this utility model are as follows: The film cutting device of this utility model has a reasonable structure. By setting a cutting motor, a circular knife and a first driving component, the first driving component drives the cutting motor to perform reciprocating linear motion, and the circular knife performs cutting operations on the film, thereby achieving the purpose of flexible cutting of the film, reducing noise pollution and protecting the physical and mental health of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the film cutting device; Figure 2 This is a structural diagram of the cutting component; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural diagram of the cutting component (from another perspective); Figure 5 This is a schematic diagram of the material pressing assembly; In the diagram: 1. Material pressing assembly; 11. Pallet; 12. Cylinder seat; 121. Linear bearing; 13. Lifting cylinder; 14. Material pressing plate; 141. Connecting strip; 15. Rubber strip; 2. Cutting assembly; 21. Crossbeam; 211. Cable chain groove; 22. Mounting base; 221. Sensing strip; 23. Cutting motor; 24. Circular knife; 25. Connecting column; 26. Guide rail; 31. Drive wheel; 32. Tensioning wheel; 33. Synchronous belt; 4. Limit plate; 41. Slot; 5. Induction switch. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0017] like Figure 1-5 As shown, the film cutting device of this embodiment includes a pressing assembly 1 and a cutting assembly 2 connected to a frame. The pressing assembly 1 includes a fixedly mounted support plate 11. The cutting assembly 2 is disposed on the discharge side of the pressing assembly 1. The cutting assembly 2 includes a fixedly mounted crossbeam 21, a mounting base 22 slidably connected to the crossbeam 21, a cutting motor 23 connected to the mounting base 22, and a circular blade 24 disposed at the drive end of the cutting motor 23. A first driving assembly for driving the mounting base 22 to perform reciprocating linear motion is disposed between the crossbeam 21 and the mounting base 22. The sliding direction of the mounting base 22 is perpendicular to the film feeding direction. The circular blade 24 is disposed adjacent to the pressing assembly 1, and the blade height of the circular blade 24 is lower than the upper surface of the support plate 11.

[0018] This design enables flexible cutting and avoids damage from hard impacts: the cutting component drives the mounting base to reciprocate linearly through the first drive component, driving the cutting motor and the circular blade to move and cut along the direction perpendicular to the film feeding, replacing the high-speed impact cutting of the traditional flying knife device; at the same time, the circular blade is close to the pressing component and the blade height is lower than the upper surface of the tray, which can adapt to the stable placement of the film on the tray, avoiding hard damage to the film or the device itself during cutting, and achieving a gentler cutting effect.

[0019] Reduce noise pollution and protect workers' physical and mental health: By eliminating the impact of the traditional flying knife moving quickly and hitting the frame, the smooth reciprocating sliding of the mounting base and the rotating cutting of the circular knife reduce impact noise at the source, solving the noise pollution problem of traditional equipment, creating a more friendly working environment for workers, and directly protecting their physical and mental health.

[0020] Improved cutting stability and precision: The fixed support plate of the pressing assembly provides stable support for the film, and the crossbeam of the cutting assembly is slidably connected to the mounting base. The position of the circular blade is precisely matched with the pressing assembly, which can ensure that the circular blade moves stably and the cutting position is accurate during the cutting process, reduce the waste generated by the film due to cutting deviation, and ensure the cutting quality.

[0021] According to one embodiment of the present invention, the mounting base 22 is fixedly connected to the cutting motor 23 by a connecting post 25, and the connecting post 25 is arranged adjacent to the circular blade 24.

[0022] This design ensures stable relative position through a fixed connection: the connecting column rigidly fixes the mounting base and the cutting motor, preventing relative displacement between the two during the cutting process and ensuring that the motor and the mounting base always move synchronously, thus reducing cutting position deviations caused by loose parts from the basic structural perspective.

[0023] Enhanced overall rigidity of the component: The mounting base, connecting column, cutting motor, and circular blade form a compact cutting unit, which improves the structural rigidity of the unit. When the mounting base slides back and forth along the crossbeam, it can reduce the deformation or vibration of the entire cutting unit, further ensuring the stability of cutting accuracy during long-term use.

[0024] According to one embodiment of the present invention, the first drive assembly includes a drive wheel 31 and a tension wheel 32 respectively disposed at both ends of the crossbeam 21. The drive wheel 31 and the tension wheel 32 are covered with a timing belt 33, and the mounting base 22 is fixedly connected to the timing belt 33.

[0025] This design enables the mounting base to move smoothly back and forth, which is suitable for flexible cutting: the drive wheel drives the synchronous belt to rotate, the tension wheel helps to maintain the tension of the synchronous belt, and with the design of fixing the mounting base to the synchronous belt, it can drive the mounting base to make a smooth reciprocating linear motion along the crossbeam, avoiding the impact of the high-speed impact movement of traditional flying knife devices.

[0026] According to one embodiment of this utility model, a guide rail 26 is fixedly mounted on the crossbeam 21, and limit plates 4 are fixedly mounted at both ends of the guide rail 26. An inductive switch 5 is fixedly mounted on the outer wall of the limit plate 4. Inductive strips 221 extend from both sides of the mounting base 22, and the limit plate 4 is provided with slots 41 for the inductive strips 221 to pass through. The inductive switch is preferably an OMRON 303N inductive switch.

[0027] With this design, the combination of limit plate, inductive switch, and inductive strip prevents hard impacts: when the mounting base slides along the guide rail to both ends of the crossbeam, the inductive strips on both sides of the mounting base will pass through the slots of the limit plate and trigger the inductive switch on the outer wall of the limit plate; the inductive switch can send a signal to the drive system in time to control the mounting base to stop or change direction, completely avoiding the problem of impacting the frame after high-speed sliding of traditional flying knife devices.

[0028] According to one embodiment of the present invention, the crossbeam 21 is provided with a drag chain groove 211, and a drag chain is provided between the drag chain groove 211 and the cutting motor 23.

[0029] This design helps to store and protect the cables associated with the cut motor, preventing damage.

[0030] According to one embodiment of the present invention, the pressing assembly 1 further includes a pressing plate 14, a rubber strip 15 fixedly disposed below the pressing plate 14, and a second driving assembly for driving the pressing plate 14 to rise and fall.

[0031] This design ensures stable material pressing and precise cutting: the pressure plate can be raised and lowered under the drive of the second drive component. When the film is in place, the pressure plate can accurately press down and fix the film, preventing the film from shifting or wrinkling due to the force of the circular blade during the cutting process.

[0032] Rubber strip protection to avoid film damage: The soft rubber strip fixed under the pressure plate replaces the design of direct metal contact with the film. It can further enhance the stability of the pressure by the friction of the rubber, and avoid scratches, indentations and other damage to the film surface when pressing with hard materials. It is especially suitable for the cutting needs of easily damaged flexible films.

[0033] According to one embodiment of the present invention, the second driving assembly includes a fixedly disposed cylinder seat 12 and a lifting cylinder 13 fixedly connected to the cylinder seat 12. Two sets of lifting cylinders 13 are provided. A connecting strip 141 is fixedly disposed on the side wall of the pressure plate 14. The piston rod of the lifting cylinder 13 is fixedly connected to the connecting strip 141. The two sets of lifting cylinders 13 are respectively disposed on both sides of the connecting strip 141.

[0034] With this design, the two sets of cylinders are symmetrically arranged to ensure that the pressure plate is balanced and does not tilt: the two sets of lifting cylinders are located on both sides of the connecting strip, and the piston rods are fixedly connected to the connecting strip. This symmetrical design allows the pressure plate to be evenly stressed during lifting and lowering, avoiding the problem of the pressure plate tilting or shifting caused by unilateral drive. It ensures that the pressure plate is always parallel to the support plate and presses down, thereby stabilizing and pressing the film and preventing the film from wrinkling or shifting due to uneven pressing.

[0035] According to one embodiment of the present invention, the cylinder seat 12 is fixedly provided with a linear bearing 121, and the piston rod of the lifting cylinder 13 passes through the linear bearing 121.

[0036] This design ensures precise guidance and prevents piston rod misalignment and wobbling: the linear bearing provides stable axial guidance for the piston rod of the lifting cylinder, limiting radial misalignment, wobbling, or jamming during extension and retraction. This ensures that the piston rod always moves smoothly in the vertical direction, thereby driving the pressure plate to move precisely up and down, preventing the pressure plate from tilting due to piston rod misalignment. It also ensures the parallelism between the pressure plate and the support plate from the drive end, guaranteeing uniform pressure on the film.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A film cutting device, characterized in that, The assembly includes a pressing assembly (1) connected to a frame and a cutting assembly (2). The pressing assembly (1) includes a fixedly mounted tray (11). The cutting assembly (2) is located on the discharge side of the pressing assembly (1). The cutting assembly (2) includes a fixedly mounted crossbeam (21), a mounting base (22) slidably connected to the crossbeam (21), a cutting motor (23) connected to the mounting base (22), and a circular blade (24) located at the drive end of the cutting motor (23). A first driving assembly for driving the mounting base (22) to perform reciprocating linear motion is provided between the crossbeam (21) and the mounting base (22). The sliding direction of the mounting base (22) is perpendicular to the feeding direction of the film. The circular blade (24) is located adjacent to the pressing assembly (1), and the blade height of the circular blade (24) is lower than the upper surface of the tray (11).

2. The film cutting device according to claim 1, characterized in that, The mounting base (22) is fixedly connected to the cutting motor (23) via a connecting post (25), and the connecting post (25) is arranged adjacent to the circular blade (24).

3. The film cutting device according to claim 1, characterized in that, The first drive assembly includes a drive wheel (31) and a tension wheel (32) disposed at both ends of the crossbeam (21). The drive wheel (31) and the tension wheel (32) are covered with a timing belt (33). The mounting base (22) is fixedly connected to the timing belt (33).

4. The film cutting device according to claim 1, characterized in that, The crossbeam (21) is fixedly provided with a guide rail (26), and the two ends of the guide rail (26) are fixedly provided with limit plates (4). The outer wall of the limit plate (4) is fixedly provided with an induction switch (5). The mounting base (22) is provided with induction strips (221) extending on both sides, and the limit plate (4) is provided with a slot (41) for the induction strips (221) to pass through.

5. The film cutting device according to claim 1, characterized in that, The crossbeam (21) is provided with a drag chain groove (211), and a drag chain is provided between the drag chain groove (211) and the cutting motor (23).

6. The film cutting apparatus according to claim 1, characterized in that, The pressing assembly (1) further includes a pressing plate (14), a rubber strip (15) fixedly disposed below the pressing plate (14), and a second driving assembly for driving the pressing plate (14) to rise and fall.

7. The film cutting apparatus according to claim 6, characterized in that, The second drive assembly includes a fixed cylinder seat (12) and a lifting cylinder (13) fixedly connected to the cylinder seat (12). There are two sets of lifting cylinders (13). A connecting strip (141) is fixedly provided on the side wall of the pressure plate (14). The piston rod of the lifting cylinder (13) is fixedly connected to the connecting strip (141). The two sets of lifting cylinders (13) are respectively located on both sides of the connecting strip (141).

8. The film cutting apparatus according to claim 7, characterized in that, The cylinder seat (12) is fixedly provided with a linear bearing (121), and the piston rod of the lifting cylinder (13) passes through the linear bearing (121).

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