Roll changing and film cutting mechanism for winding end of breathable film production line

Abstract

The utility model discloses a breathable film production line rolling end roll changing and film cutting mechanism which comprises a side plate and a film roll, the film roll is arranged on the side plate, a driving assembly is arranged on the side plate, a cutting assembly is arranged at the position, located on the film roll, of the driving assembly, and the cutting assembly comprises a cutter for slitting a film. The driving assembly comprises a driving motor, a driving gear and a transmission gear, the driving motor is fixed to the side plate, an output shaft of the driving motor is fixedly sleeved with the driving gear, and the transmission gear is meshed with the driving gear. The driving assembly and the cutting assembly are arranged, the driving assembly drives the cutter on the cutting assembly to move, the cutter cuts the film to cut the film, manual operation is not needed, due to the stability of the cutter, the cutter can cut the film at a time, repeated operation is not needed, and compared with manual operation, the cutting efficiency is greatly improved. Not only is the slitting stability improved, but also the slitting efficiency is improved, and the film slitting operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of film winding technology, and in particular to a film changing and cutting mechanism at the winding end of a breathable film production line. Background Technology

[0002] Breathable film is a type of breathable film with excellent air permeability, allowing gas to pass through while blocking liquids and solids. It is widely used in medical, packaging, and agricultural fields. Transparent film needs to be produced through a specialized transparent film production line, which consists of multiple process steps such as melt extrusion, die extrusion, and cooling and shaping. After cooling and shaping, it is wound up by a winding roller.

[0003] In the existing technology, the take-up roller takes up the cooled and shaped breathable membrane. After the take-up roller has taken up a certain amount, the membrane roll on the take-up roller needs to be replaced. Before replacement, the operator needs to manually cut the breathable membrane with a knife. Sometimes the manual cutting cannot be cut in one cut and the operation needs to be repeated, which is not convenient and quick.

[0004] Therefore, how to provide a film changing and cutting mechanism at the winding end of a breathable membrane production line is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a film changing and cutting mechanism at the winding end of a breathable membrane production line. This invention solves the problem in the prior art that workers need to manually divide the wound film, and sometimes the film cannot be cut in one cut and requires repeated operation, which makes the dividing operation inconvenient and inefficient.

[0006] According to an embodiment of the present invention, a film changing and cutting mechanism at the winding end of a breathable membrane production line includes a side plate and a film roll. The film roll is disposed on the side plate, and a driving assembly is disposed on the side plate. A cutting assembly is disposed on the driving assembly at the position of the film roll, and the cutting assembly includes a cutter for cutting the film.

[0007] The drive assembly includes a drive motor, a drive gear, and a transmission gear. The drive motor is fixed on the side plate, the drive gear is fixedly sleeved on the output shaft of the drive motor, and the transmission gear meshes with the drive gear.

[0008] The drive assembly includes a reciprocating lead screw, a guide rod, and a moving block. The reciprocating lead screw is rotatably connected to the side plate near the film roll. The guide rod is disposed on the side plate and is parallel to the reciprocating lead screw. The moving block is movably sleeved on the surface of the reciprocating lead screw and the guide rod. The cutting assembly is disposed at the bottom of the moving block.

[0009] The cutting assembly also includes a limiting seat, a fixed clamping plate, a movable clamping plate, a fixing bolt, and a threaded hole. The limiting seat is fixed to the bottom of the moving block, the fixed clamping plate is fixed to the bottom of the moving block near the limiting seat, the movable clamping plate moves on the limiting seat, the cutter is set between the fixed clamping plate and the movable clamping plate, the fixing bolt is set on one side of the movable clamping plate, the threaded hole is opened on the fixed clamping plate, and one end of the fixing bolt passes through the movable clamping plate and the cutter and is threadedly connected to the threaded hole.

[0010] The cutting assembly also includes an arc groove, a locking bolt, a positioning block, positioning teeth, tooth grooves, and a locking nut. The arc grooves are respectively formed on the fixed clamping plate and the movable clamping plate, and the center of the arc grooves coincides with the axis of the fixed bolt. The locking bolt is located on the side of the fixed clamping plate away from the movable clamping plate. After passing through the arc groove and the cutter, the locking bolt extends to the other side of the movable clamping plate. The tooth grooves are formed on the surface of the movable clamping plate at the position where they enter the arc grooves. The positioning block is fixedly sleeved on the surface of the locking bolt and is in contact with the surface of the movable clamping plate. The positioning teeth are fixed on the positioning block, and the other end of the positioning teeth meshes with the tooth grooves. The locking nut is threadedly sleeved on the surface of the locking bolt, and one side of the locking nut is in contact with the surface of the positioning block.

[0011] A mounting plate is provided on one side of the movable block. A pressing assembly is provided on the mounting plate. The pressing assembly includes a pressing wheel, a mounting frame, a movable square rod, and a spring. The mounting plate is movably sleeved on the surface of the movable square rod. One end of the movable square rod near the membrane roll is fixed to the mounting frame. The pressing wheel is provided on the mounting frame. The spring is movably sleeved on the surface of the movable square rod located between the mounting plate and the mounting frame. Both ends of the spring are respectively attached to the surfaces of the mounting plate and the mounting frame. The pressing wheel is attached to the surface of the membrane roll.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a drive component and a cutting component, the drive component moves the cutter on the cutting component, causing the cutter to slice the film. No manual operation is required. Due to the stability of the cutter, the film can be sliced ​​in one go without repeating the operation. Compared with manual operation, this not only improves the stability of slicing but also improves the efficiency of slicing, making the film slicing operation convenient and fast. This solves the problem in the existing technology that workers need to manually slicing the wound film, and sometimes the film cannot be cut in one go, requiring repeated operations, which makes the slicing operation inconvenient and slow.

[0014] By setting up a pressing component that moves synchronously with the cutting component, the pressing component presses the film on the film roll when the cutter cuts the film, so that the film maintains a certain tension during the cutting process, which further improves the stability of film cutting. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This utility model presents an overall three-dimensional flow diagram of a film changing and cutting mechanism at the winding end of a breathable membrane production line.

[0017] Figure 2 This is a three-dimensional flow diagram showing the position of the movable clamping plate in the cutting component of the film changing and cutting mechanism at the winding end of a breathable membrane production line proposed in this utility model.

[0018] Figure 3 This is a three-dimensional flow diagram of a cross-section of another position of the cutting component in the film changing and cutting mechanism at the winding end of a breathable membrane production line proposed in this utility model.

[0019] Figure 4 This is a three-dimensional flow diagram showing the position of the locking bolt in the cutting component of the film changing and cutting mechanism at the winding end of a breathable membrane production line proposed in this utility model.

[0020] The attached diagram shows: 1. Side plate; 2. Membrane roll; 3. Drive assembly; 4. Cutting assembly; 5. Cutter; 6. Drive motor; 7. Drive gear; 8. Transmission gear; 9. Reciprocating screw; 10. Guide rod; 11. Moving block; 12. Limit seat; 13. Fixed clamping plate; 14. Movable clamping plate; 15. Fixed bolt; 16. Threaded hole; 17. Arc groove; 18. Locking bolt; 19. Positioning block; 20. Positioning tooth; 21. Tooth groove; 22. Locking nut; 23. Mounting plate; 24. Pressing assembly; 25. Pressing wheel; 26. Mounting bracket; 27. Movable square rod; 28. Spring component. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Example 1:

[0023] refer to Figure 1 and Figure 2The system includes a side plate 1 and a membrane roll 2, with the membrane roll 2 mounted on the side plate 1. A drive assembly 3 is mounted on the side plate 1, comprising a drive motor 6, a drive gear 7, and a transmission gear 8. The drive motor 6 is fixed to the side plate 1 and is a small geared motor (details omitted here). The drive motor 6 is powered by a municipal power supply system. The drive gear 7 is fixedly mounted on the output shaft of the drive motor 6. The transmission gear 8 meshes with the drive gear 7. The drive assembly 3 includes a reciprocating screw 9, a guide rod 10, and a moving block 11. The reciprocating screw 9 is rotatably connected to a position on the side plate 1 near the membrane roll 2. The guide rod 10 is mounted on the side plate 1 and is parallel to the reciprocating lead screw 9. The moving block 11 is movably sleeved on the surfaces of the reciprocating lead screw 9 and the guide rod 10. The cutting assembly 4 is mounted at the bottom of the moving block 11. During operation, the drive motor 6 needs to be started first. The drive motor 6 starts and drives the drive gear 7 to rotate. The drive gear 7 rotates and drives the transmission gear 8 to rotate. The transmission gear 8 performs the transmission operation. The rotation of the transmission gear 8 will drive the reciprocating lead screw 9 to rotate. The rotation of the reciprocating lead screw 9 will drive the moving block 11 to move along the reciprocating lead screw 9. Since the reciprocating lead screw 9 is parallel to the film roll 2, the moving block 11 will move along the film roll 2.

[0024] refer to Figure 2 , Figure 3 and Figure 4The drive assembly 3 has a cutting assembly 4 located at the position of the mold roll. The cutting assembly 4 includes a cutter 5 for slitting the film. The cutter 5 has a "V" shaped cut, so that when slitting the film, the cutter 5 tilts and enters the film. The cutter 5 then moves down and slits the film to perform the slitting operation. The cutting assembly 4 also includes a limiting seat 12, a fixed clamping plate 13, a movable clamping plate 14, a fixing bolt 15, and a threaded hole 16. The limiting seat 12 is fixed to the bottom of the moving block 11. The fixed clamping plate 13 is fixed to the bottom of the moving block 11 near the limiting seat 12. The movable clamping plate 14 is movable on the limiting seat 12. The cutter 5 is located between the fixed clamping plate 13 and the movable clamping plate 14. The fixing bolt 15 is located on one side of the movable clamping plate 14. The threaded hole 16 is opened on the fixed clamping plate 13. One end of the fixing bolt 15 passes through the movable clamping plate 14 and the cutter 5 and is threaded into the threaded hole 16. Thus, the cutter 5 has a connection with the fixed clamping plate 13. The fixing bolt 15 is fitted with a hole of the same size. At this time, the cutter 5 is movably sleeved on the fixing bolt 15 to position the cutter 5. The connection between the fixing bolt 15 and the threaded hole 16 will drive the movable clamping plate 14 to move and clamp the cutter 5 between the fixing clamping plate 13 and the movable clamping plate 14. This can fix the cutter 5 and prevent the cutting angle on the cutter 5 from moving. When removing it, simply rotate the fixing bolt 15 in the opposite direction to separate the fixing bolt 15 from the threaded hole 16, and then remove the fixing bolt 15 from the movable clamping plate 14. The cutter 5 can then be easily removed for easy replacement. During operation, the movement of the moving block 11 will drive the cutting assembly 4 to move, so that the cutter 5 on the cutting assembly 4 will cut the film from the side of the film to perform the film cutting operation. It should be noted that due to the winding effect of the film roll 2, the film will have tension, so the cutter 5 can stably cut the film to perform the film cutting.

[0025] Example 2:

[0026] refer to Figure 2 and Figure 4The cutting assembly 4 also includes an arc-shaped groove 17, a locking bolt 18, a positioning block 19, a positioning tooth 20, a toothed groove 21, and a locking nut 22. The arc-shaped groove 17 is respectively formed on the fixed clamping plate 13 and the movable clamping plate 14. The center of the arc of the arc-shaped groove 17 coincides with the axis of the fixed bolt 15. The locking bolt 18 is located on the side of the fixed clamping plate 13 away from the movable clamping plate 14. The locking bolt 18 passes through the arc-shaped groove 17 and the cutter 5 and extends to the other side of the movable clamping plate 14. The toothed groove 21 is formed on the surface of the movable clamping plate 14 at the position where it enters the arc-shaped groove 17. The toothed groove 21 is arranged along the arc-shaped groove 17 on the movable clamping plate 14. The positioning block 19 is fixedly sleeved on the surface of the locking bolt 18 and fits against the surface of the movable clamping plate 14. The positioning tooth 20 is fixed on the positioning block 19, and the other end of the positioning tooth 20 meshes with the toothed groove 21. The locking nut 22 is threadedly sleeved on the surface of the locking bolt 18. One side of the locking nut 22 is attached to the surface of the positioning block 19. When it is necessary to adjust the angle of the cut on the cutter 5, the drive motor 6 needs to be turned off, and then the loose fixing bolt 15 is moved to move the movable clamping plate 14 away from the cutter 5. This will loosen the cutter 5. Then, the locking nut 22 is rotated to move the locking bolt 18, causing the positioning tooth 20 to separate from the tooth groove 21. Then, the cutter 5 is rotated to change the direction of the cut on the cutter 5. While the cutter 5 is rotating, it will drive the locking bolt 18, the positioning block 19, the positioning tooth 20 and the locking nut 22 to rotate around the fixing bolt 15. After the direction of the cut on the cutter 5 is adjusted, the locking bolt 18 and the locking nut 22 are rotated in the opposite direction to make the positioning tooth 20 lock in the tooth groove 21 to position the cutter 5. The locking bolt 18 tightly clamps the movable clamping plate 14 on the cutter 5 to fix the position of the cutter 5, thereby achieving the effect of adjusting the angle of the cut on the cutter 5.

[0027] Example 3:

[0028] refer to Figure 3A mounting plate 23 is provided on one side of the movable block 11. A pressing assembly 24 is provided on the mounting plate 23. The pressing assembly 24 includes a pressing wheel 25, a mounting frame 26, a movable square rod 27, and a spring member 28. The mounting plate 23 is movably sleeved on the surface of the movable square rod 27. One end of the movable square rod 27 near the film roll 2 is fixed to the mounting frame 26. The pressing wheel 25 is provided on the mounting frame 26. The spring member 28 is movably sleeved on the surface of the movable square rod 27 located between the mounting plate 23 and the mounting frame 26. The two ends of the spring member 28 are respectively attached to the surfaces of the mounting plate 23 and the mounting frame 26. On the other side, the pressing roller 25 is attached to the surface of the film roll 2. During operation, the elastic force of the spring member 28 is applied to the mounting frame 26, and then the mounting frame 26 transmits the elastic force to the pressing roller 25, so that the pressing roller 25 is tightly attached to the surface of the film roll 2 to press the film on the film roll 2. When the moving block 11 moves, it will drive the movable square rod 27, the mounting frame 26 and the pressing roller 25 to move through the mounting plate 23, so that the pressing roller 25 moves synchronously with the cutter 5. In this way, the film in the cutting direction of the cutter 5 is pressed to maintain the tension at the cutting position on the film and further improve the cutting stability.

[0029] 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.

Claims

1. A film changing and cutting mechanism at the winding end of a breathable membrane production line, characterized in that, It includes a side plate (1) and a film roll (2). The film roll (2) is disposed on the side plate (1). A driving assembly (3) is disposed on the side plate (1). A cutting assembly (4) is disposed on the driving assembly (3) at the position of the film roll. The cutting assembly (4) includes a cutter (5) for cutting the film. The cutting assembly (4) also includes a limiting seat (12), a fixed clamping plate (13), a movable clamping plate (14), a fixing bolt (15), and a threaded hole (16). The limiting seat (12) is fixed to the bottom of the moving block (11), the fixed clamping plate (13) is fixed to the bottom of the moving block (11) near the limiting seat (12), the movable clamping plate (14) moves on the limiting seat (12), the cutter (5) is set between the fixed clamping plate (13) and the movable clamping plate (14), the fixing bolt (15) is set on one side of the movable clamping plate (14), the threaded hole (16) is opened on the fixed clamping plate (13), and one end of the fixing bolt (15) passes through the movable clamping plate (14) and the cutter (5) and is threadedly connected to the threaded hole (16). The cutting assembly (4) also includes an arc groove (17), a locking bolt (18), a positioning block (19), a positioning tooth (20), a tooth groove (21), and a locking nut (22). The arc groove (17) is respectively opened on the fixed clamping plate (13) and the movable clamping plate (14). The arc center of the arc groove (17) coincides with the axis of the fixed bolt (15). The locking bolt (18) is set on the side of the fixed clamping plate (13) away from the movable clamping plate (14). The locking bolt (18) extends to the movable clamping plate after passing through the arc groove (17) and the cutter (5). On the other side of the plate (14), the tooth groove (21) is opened on the surface of the movable clamping plate (14) at the position of the arc groove (17). The positioning block (19) is fixedly sleeved on the surface of the locking bolt (18), and the positioning block (19) is attached to the surface of the movable clamping plate (14). The positioning tooth (20) is fixed on the positioning block (19), and the other end of the positioning tooth (20) meshes with the tooth groove (21). The locking nut (22) is threadedly sleeved on the surface of the locking bolt (18), and one side of the locking nut (22) is attached to the surface of the positioning block (19).

2. The film changing and cutting mechanism at the winding end of a breathable membrane production line according to claim 1, characterized in that, The drive assembly (3) includes a drive motor (6), a drive gear (7) and a transmission gear (8). The drive motor (6) is fixed on the side plate (1), the drive gear (7) is fixedly sleeved on the output shaft of the drive motor (6), and the transmission gear (8) meshes with the drive gear (7).

3. The film changing and cutting mechanism at the winding end of a breathable membrane production line according to claim 2, characterized in that, The drive assembly (3) includes a reciprocating screw (9), a guide rod (10), and a moving block (11). The reciprocating screw (9) is rotatably connected to the side plate (1) near the film roll (2). The guide rod (10) is set on the side plate (1) and is parallel to the reciprocating screw (9). The moving block (11) is movably sleeved on the surface of the reciprocating screw (9) and the guide rod (10). The cutting assembly (4) is set at the bottom of the moving block (11).

4. The film changing and cutting mechanism at the winding end of a breathable membrane production line according to claim 3, characterized in that, A mounting plate (23) is provided on one side of the movable block (11). A pressing assembly (24) is provided on the mounting plate (23). The pressing assembly (24) includes a pressing wheel (25), a mounting frame (26), a movable square rod (27), and a spring (28). The mounting plate (23) is movably sleeved on the surface of the movable square rod (27). One end of the movable square rod (27) near the membrane roll (2) is fixed to the mounting frame (26). The pressing wheel (25) is provided on the mounting frame (26). The spring (28) is movably sleeved on the surface of the movable square rod (27) located between the mounting plate (23) and the mounting frame (26). The two ends of the spring (28) are respectively attached to the surfaces of the mounting plate (23) and the mounting frame (26). The pressing wheel (25) is attached to the surface of the membrane roll (2).

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