A method for preparing a paper-coated antibacterial film

Abstract

This invention relates to the field of antibacterial film preparation technology, and mainly to a method for preparing antibacterial film, comprising the following steps: S1, raw material preparation, including kraft paper, antibacterial agent, and dispersant; S2, antibacterial layer preparation; S3, lamination; S4, trimming, by conveying the composite film roll through a trimming device, the composite film roll is cut to a specified size and edge defects are removed; S5, winding and packaging. In the process of preparing antibacterial film, the present invention uses an adjusting part in the trimming device to drive two cutting parts to swing, thereby enabling the two cutting parts to trim the paper alternately. At the same time, a cleaning part is used to clean the raised cutting parts, avoiding the continued trimming while glue is adhering, which would cause defects such as rough edges during trimming, thus improving the trimming quality.

Description

Technical Field

[0001] This invention relates to the field of paper-coated antibacterial film preparation technology, specifically to a method for preparing a paper-coated antibacterial film. Background Technology

[0002] Paper composite refers to the bonding of two or more different types of paper or materials together through composite processes (such as coating, lamination, hot pressing, etc.) to form a new type of paper with multifunctional properties. Paper composite antibacterial film is a multifunctional material that further composites antibacterial functional layers on the basis of paper composite. Its core is to give the material the ability to inhibit the growth of microorganisms by introducing antibacterial agents, while retaining the original properties of paper composite.

[0003] Currently, the preparation steps of antibacterial film mainly include raw material selection, antibacterial layer preparation, lamination, antibacterial performance testing, slitting and trimming, and winding and packaging. During the lamination process, uneven application of glue can easily lead to glue overflow after lamination. During the trimming process, glue residue can easily remain on the trimming blade, resulting in imperfections and rough edges during cutting. The common solutions are to clean the trimming blade regularly or to stop the machine and replace the trimming blade if the degree of imperfection is too high, which results in low trimming efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a method for preparing a paper-based antibacterial film, in order to solve the problems mentioned in the background art, such as the problem that traditional trimming equipment is prone to adhesive residue, resulting in poor trimming quality and low efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for preparing a paper-coated antibacterial film, comprising the following steps:

[0006] S1, Preparation of raw materials, including kraft paper, antibacterial agent, and dispersant;

[0007] S2, Antibacterial layer preparation: Antibacterial agent is added to adhesive in proportion and dispersed by high-speed stirring or ultrasonication to ensure uniform particle dispersion. Then, antibacterial masterbatch and film raw material are mixed in proportion, added to blown film machine, melt co-extruded into antibacterial film, cooled and wound up for later use.

[0008] S3, composite, which combines the paper base and antibacterial layer by hot pressing;

[0009] S4, trimming: The composite film roll is passed through the trimming equipment and cut to the specified size to remove edge defects.

[0010] S5, winding and packaging, involves rolling the trimmed composite film into a roll and then packaging it.

[0011] Preferably, the trimming device in the preparation equipment for the antibacterial film includes a support, a track plate fixed on the support, a track groove on the track plate, an opening inside the track plate, an adjusting tube inserted into the opening, an adjusting frame fixed to the outer end of the adjusting tube, a cutting component installed on the adjusting frame that is opposite to the track groove, a driving part installed on the track plate that is opposite to the cutting component, an adjusting part installed on the track plate that drives the adjusting tube to rotate, and a cleaning part fixed on the track plate for cleaning residual adhesive on the outside of the cutting component.

[0012] Preferably, the cutting component includes an I-shaped tube, the adjusting frame has a movable opening, and the I-shaped tube is slidably inserted into the movable opening. One end of the I-shaped tube is fixed with a track rod that is inserted into the track groove, and the other end is rotatably mounted with a drive shaft. A transmission wheel adapted to the drive unit is fixed on the outside of the drive shaft, a cutting wheel is inserted on the outside of the drive shaft, and a tightening cap is threaded onto the outer end of the drive shaft.

[0013] Preferably, the driving unit includes a driving rod that slides through the adjusting tube, a driving wheel adapted to the transmission wheel is fixed to the outer end of the driving rod, a driving motor is fixed to the track plate by a motor frame, and the output end of the driving motor is fixed to the outer end of the driving rod by a coupling.

[0014] Preferably, the track groove is composed of a fitting arc groove and two separating arc grooves. The two separating arc grooves are connected to the two ends of the fitting arc groove. When the track rod is in the fitting arc groove, the transmission wheel and the drive wheel are in contact. When the track rod is in the separating arc groove, the transmission wheel and the drive wheel are not in contact.

[0015] Preferably, the adjusting part includes an adjusting motor fixed on the track plate, a lead screw rotatably mounted on the track plate, and the output end of the adjusting motor is fixed to the outer end of the lead screw via a coupling. A moving block is threaded onto the outer side of the lead screw, and an adjusting frame is fixed to the outer side of the adjusting tube. The moving block is slidably inserted into the adjusting frame and is fixed with a pin that is inserted into the groove of the adjusting frame.

[0016] Preferably, a compression spring is fixed inside the movable opening, and one end of the compression spring is fixed with an arc-shaped piece that fits against the outside of the I-shaped tube.

[0017] Preferably, the cleaning unit includes an outer frame fixed to the track plate, a threaded rod rotatably installed inside the outer frame, and a slide rod also fixed inside the outer frame. A cleaning motor is fixed to one side of the outer frame via a motor frame, and the output end of the cleaning motor is fixed to the outer end of the threaded rod via a coupling. A movable seat that is threaded onto the outer side of the threaded rod and inserted into the slide rod is threadedly connected to it. An adjusting rod is fixed on the movable seat. Cleaning components are fixed to both ends of the outer frame, and linkage components are provided inside both ends of the outer frame.

[0018] Preferably, the linkage component includes a linkage rod, a linkage wheel is rotatably mounted at the bottom of the linkage rod, the linkage wheel is adapted to the drive wheel and the transmission wheel, a connecting frame is fixed at the top of the linkage rod, and a connecting rod fixed to the inner wall of the outer frame is slidably inserted at one end of the connecting frame. A tension spring fixed to the inner wall of the outer frame and the connecting frame is sleeved on the outside of the connecting rod. An inclined plate adapted to the adjusting rod is also fixed on the connecting frame.

[0019] Preferably, the cleaning component includes a support frame fixed to the outer frame, a sliding column fixed at the bottom of the support frame, and cleaning plates slidably inserted at both ends of the sliding column. A contact end for contacting the outer side of the cutting wheel is provided between the two cleaning plates, and mutually repelling magnetic blocks are fixed on the adjacent sides of the two cleaning plates. An inclined groove is opened on the outer side of the two cleaning plates, and an insert column adapted to the inclined groove is fixed at the bottom of the inclined plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] In the preparation process of antibacterial film on paper, the present invention uses the adjustment part in the trimming device to drive the two cutting parts to swing, so that the two cutting parts can trim the paper in turn. At the same time, the cleaning part cleans the raised cutting parts to avoid continuing to trim while glue is attached, which would cause defects such as rough edges during trimming and improve the trimming quality.

[0022] In this invention, the adjustment unit drives two cutting components to trim the edges in turn, so that when cleaning the residual glue on the cutting components, there is no need to stop the machine, thus improving the preparation efficiency of the antibacterial film. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0025] Figure 3 This is a schematic diagram illustrating the shape transformation of the two cutting components of the present invention;

[0026] Figure 4 This is a front view of the internal structure after a partial sectional view of the outer frame of the present invention;

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the cutting component and the cleaning component of the present invention;

[0028] Figure 6 This is a schematic diagram showing the positional relationship between the two transmission wheels and the drive wheel of the present invention;

[0029] Figure 7 This is a schematic diagram of the connection between the track rod and the track groove of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0031] Figure 9 This is an overall side view of the invention;

[0032] Figure 10 This is a schematic diagram showing the positional relationship between the cleaning component and the linkage component of the present invention.

[0033] In the diagram: 1. Support; 2. Track plate; 3. Track groove; 4. Adjusting pipe; 5. Adjusting frame; 6. Cutting component; 7. Drive unit; 8. Adjusting unit; 9. Cleaning unit; 10. I-shaped tube; 11. Moving port; 12. Track rod; 13. Drive shaft; 14. Transmission wheel; 15. Cutting wheel; 16. Tightening cap; 17. Drive rod; 18. Drive wheel; 19. Drive motor; 20. Fitting arc groove; 21. Separating arc groove; 22. Adjusting motor; 23. 24. Lead screw; 25. Moving block; 26. Adjusting frame; 27. Compression spring; 28. Arc-shaped plate; 29. ​​Outer frame; 20. Threaded rod; 31. Slide rod; 32. Cleaning motor; 33. Moving seat; 34. Adjusting rod; 35. Cleaning component; 36. Linkage component; 37. Linkage rod; 38. Linkage wheel; 39. Connecting frame; 40. Connecting rod; 41. Tension spring; 42. Inclined plate; 43. Support frame; 44. Slide column; 45. Cleaning plate; 46. Insert column. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 4 The method for preparing a paper-coated antibacterial film shown in the figure includes the following steps:

[0036] S1, Preparation of raw materials, including kraft paper, antibacterial agent, and dispersant;

[0037] S2, Antibacterial layer preparation: Antibacterial agent is added to adhesive in proportion and dispersed by high-speed stirring or ultrasonication to ensure uniform particle dispersion. Then, antibacterial masterbatch and film raw material are mixed in proportion, added to blown film machine, melt co-extruded into antibacterial film, cooled and wound up for later use.

[0038] S3, composite, which combines the paper base and antibacterial layer by hot pressing;

[0039] S4, trimming: The composite film roll is passed through the trimming equipment and cut to the specified size to remove edge defects.

[0040] S5, winding and packaging, involves rolling the trimmed composite film into a roll and then packaging it.

[0041] Among them, the trimming equipment in the preparation equipment of antibacterial film includes a support 1, a track plate 2 fixed on the support 1, a track groove 3 opened on the track plate 2, an opening opened in the track plate 2, an adjusting tube 4 inserted in the opening, an adjusting frame 5 fixed at the outer end of the adjusting tube 4, a cutting component 6 connected to the track groove 3 installed on the adjusting frame 5, a driving part 7 connected to the cutting component 6 installed on the track plate 2, an adjusting part 8 that drives the adjusting tube 4 to rotate installed on the track plate 2, and a cleaning part 9 for cleaning residual glue on the outside of the cutting component 6 fixed on the track plate 2;

[0042] In this solution, the cutting component 6 is adjusted to a suitable position using the bracket 1 to trim the edges of the antibacterial paper film. Then, the antibacterial paper film is wound up by the traction component. During the winding process, the cutting component 6 cuts the paper edge to achieve the trimming operation. During the trimming process, the adjusting unit 8 drives the adjusting frame 5 to rotate, so that the two cutting components 6 swing alternately to cut the paper. This facilitates the cleaning unit 9 to clean the residual glue on the raised cutting component 6, achieving glue removal without stopping the machine, improving the preparation efficiency of the antibacterial paper film, and also avoiding glue adhesion that affects the trimming quality.

[0043] For further details, please refer to [link / reference]. Figure 3 - Figure 8 The cutting component 6 includes an I-shaped tube 10. The adjusting frame 5 has a movable opening 11. The I-shaped tube 10 is slidably inserted into the movable opening 11. One end of the I-shaped tube 10 is fixed with a track rod 12 that is inserted into the track groove 3. The other end is rotatably mounted with a drive shaft 13. A transmission wheel 14 that is adapted to the drive part 7 is fixed on the outside of the drive shaft 13. A cutting wheel 15 is inserted on the outside of the drive shaft 13. A tightening cap 16 is threaded onto the outer end of the drive shaft 13. After the cutting wheel 15 is inserted into the outer end of the drive shaft 13, the tightening cap 16 makes the cutting wheel 15 stably inserted into the outer end of the drive shaft 13 and able to rotate with the rotation of the drive shaft 13.

[0044] Also see Figure 7 and Figure 9The drive unit 7 includes a drive rod 17 that slides through the adjustment tube 4. The outer end of the drive rod 17 is fixed with a drive wheel 18 that is adapted to the transmission wheel 14. A drive motor 19 is fixed on the track plate 2 by a motor frame. The output end of the drive motor 19 is fixed to the outer end of the drive rod 17 by a coupling. The drive motor 19 drives the drive rod 17 to rotate, thereby causing the drive wheel 18 to rotate. The drive wheel 18 drives the transmission wheel 14, thereby driving the corresponding rotation of the cutting wheel 15, improving the trimming quality.

[0045] For further details, please refer to [link / reference]. Figure 3 and Figure 9 The adjustment unit 8 includes an adjustment motor 22 fixed on the track plate 2, a lead screw 23 rotatably mounted on the track plate 2, the output end of the adjustment motor 22 is fixed to the outer end of the lead screw 23 through a coupling, a moving block 24 is threaded on the outer side of the lead screw 23, an adjustment frame 25 is fixed on the outer side of the adjustment tube 4, the moving block 24 is slidably inserted into the adjustment frame 25, and a pin is fixed to be inserted into the inner groove of the adjustment frame 25.

[0046] Also see Figure 3 and Figure 6 The track groove 3 is composed of a fitting arc groove 20 and two separating arc grooves 21. The two separating arc grooves 21 are connected to both ends of the fitting arc groove 20. When the track rod 12 is in the fitting arc groove 20, the transmission wheel 14 is in contact with the drive wheel 18. When the track rod 12 is in the separating arc groove 21, the transmission wheel 14 is not in contact with the drive wheel 18.

[0047] In this scheme, the adjusting motor 22 drives the lead screw 23 to rotate, which in turn drives the moving block 24 to move up and down, causing the adjusting frame 25 to swing accordingly. This causes the adjusting tube 4 and the adjusting frame 5 to rotate accordingly, thereby driving the two cutting components 6 to swing synchronously. This causes the track rod 12 to move within the fitting arc groove 20 and the separating arc groove 21, thereby controlling the fitting and separating states between the drive wheel 18 and the transmission wheel 14. This prevents the cutting wheel 15 from rotating when it is not in a cutting state, facilitating subsequent replacement and other operations.

[0048] For further details, please refer to [link / reference]. Figure 4 - Figure 7 as well as Figure 9 and Figure 10 The cleaning unit 9 includes an outer frame 28 fixed on the track plate 2. A threaded rod 29 is rotatably installed inside the outer frame 28. A slide rod 30 is also fixed inside the outer frame 28. A cleaning motor 31 is fixed on one side of the outer frame 28 via a motor frame. The output end of the cleaning motor 31 is fixed to the outer end of the threaded rod 29 via a coupling. A movable seat 32 that is inserted into the slide rod 30 is threaded onto the outer side of the threaded rod 29. An adjusting rod 33 is fixed on the movable seat 32. Cleaning components 34 are fixed at both ends of the outer frame 28. Linkage components 35 are provided inside both ends of the outer frame 28.

[0049] The linkage component 35 includes a linkage rod 36, a linkage wheel 37 is rotatably mounted at the bottom of the linkage rod 36, the linkage wheel 37 is adapted to the drive wheel 18 and the transmission wheel 14, a connecting frame 38 is fixed at the top of the linkage rod 36, a connecting rod 39 fixed to the inner wall of the outer frame 28 is slidably inserted at one end of the connecting frame 38, a tension spring 40 is sleeved on the outside of the connecting rod 39 and fixed to the inner wall of the outer frame 28 and the connecting frame 38, and an inclined plate 41 adapted to the adjusting rod 33 is also fixed on the connecting frame 38.

[0050] Meanwhile, the cleaning component 34 includes a support frame 42 fixed to the outer frame 28. A sliding column 43 is fixed at the bottom of the support frame 42. Cleaning plates 44 are slidably inserted at both ends of the sliding column 43. A contact end for contacting the outer side of the cutting wheel 15 is provided between the two cleaning plates 44. Mutually repelling magnetic blocks are fixed on the adjacent sides of the two cleaning plates 44. An inclined groove is opened on the outer side of the two cleaning plates 44. An insert 45 adapted to the inclined groove is fixed at the bottom of the inclined plate 41.

[0051] In this solution, the principle of cleaning residual adhesive from the outer side of the cutting wheels 15 in the cleaning section 9 is as follows:

[0052] First, the adjusting unit 8 drives the adjusting tube 4 to rotate, causing the adjusting frame 5 and the two cutting components 6 to swing accordingly. This raises one of the cutting components 6 and moves the cutting wheel 15 between the two cleaning plates 44. Then, the cleaning motor 31 drives the threaded rod 29 to rotate, causing the moving seat 32 to move to the raised cutting component 6. During this movement, the adjusting rod 33 contacts the inclined plate 41, pressing the inclined plate 41 downward. This causes the connecting frame 38, the linkage rod 36, and the linkage wheel 37 to move downward synchronously, and the linkage wheel 37... Figure 6 As shown, the drive wheel 18 and transmission wheel 14 are in contact, so that the transmission wheel 14 can drive the cutting wheel 15 to rotate. During the downward movement of the inclined plate 41, the insertion post 45 is driven to move downward, so that the two cleaning plates 44 are in contact with the outside of the cutting wheel 15, thereby cleaning the residual glue on the outside of the cutting wheel 15.

[0053] After cleaning, the moving seat 32 moves, causing the adjusting rod 33 to disengage from the inclined plate 41. Under the action of the tension spring 40, the connecting frame 38 and the linkage wheel 37 move upward. The transmission wheel 14 does not contact the drive wheel 18, so that the cutting wheel 15 stops rotating. At the same time, the two cleaning plates 44 move outward under the repulsive action of the magnetic block and disengage from the cutting wheel 15.

[0054] The specific operations for achieving high-quality edge trimming of the antibacterial film in this solution include the following steps:

[0055] The first step is for personnel to adjust and install the bracket 1 according to the trimming spacing.

[0056] The second step involves rotating the adjusting tube 4 and the adjusting frame 5 via the adjusting part 8, so that one of the cutting parts 6 contacts and cuts the paper.

[0057] The third step is to use the adjustment part 8 to change the position of the two cutting parts 6 after cutting a certain interval.

[0058] The fourth step involves moving the movable seat 32 within the cleaning section 9 to lower the inclined plate 41, causing the two cleaning plates 44 to adhere to the cutting wheel 15, and the linkage wheel 37 to adhere to the drive wheel 18 and the transmission wheel 14, thus beginning the cleaning of residual adhesive on the outside of the cutting wheel 15.

[0059] Fifth step: The adjusting unit 8 drives the adjusting frame 5 to rotate in both directions at regular intervals, so that the two cutting parts 6 alternately change positions, and repeats the third and fourth steps.

[0060] In this plan, such as Figure 3 As shown, during the swinging process of the two cutting wheels 15, when the adjusting frame 5 rotates to a horizontal state, both cutting wheels 15 are in a horizontal state and are in contact with the antibacterial film to cut it. This ensures that the adjusting frame 5 always keeps the antibacterial film in a cutting state during the rotation process, and avoids the cutting of the edge of the antibacterial film being interrupted during the adjustment process.

[0061] Example 2: Please refer to Figure 7 as well as Figure 8 This embodiment further explains the first embodiment, the difference being that a spring is added inside the moving port 11, so that the track rod 12 moves stably in the track groove 3 without shaking.

[0062] Specifically, a compression spring 26 is fixed inside the moving port 11. One end of the compression spring 26 is fixed with an arc-shaped piece 27 that fits against the outside of the I-shaped tube 10. It should be noted that when the track rod 12 moves along the fitting arc groove 20 and the separating arc groove 21, the compression spring 26 compresses the arc-shaped piece 27, making the track rod 12 more stable during movement.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a paper-coated antibacterial film, characterized in that, Includes the following steps: S1, Preparation of raw materials, including kraft paper, antibacterial agent, and dispersant; S2, Antibacterial layer preparation: Antibacterial agent is added to adhesive in proportion and dispersed by high-speed stirring or ultrasonication to ensure uniform particle dispersion. Then, antibacterial masterbatch and film raw material are mixed in proportion, added to blown film machine, melt co-extruded into antibacterial film, cooled and wound up for later use. S3, composite, which combines the paper base and antibacterial layer by hot pressing; S4, Trimming: The composite film roll is conveyed through a trimming device, which then cuts the composite film roll to the specified size and removes edge defects. S5, winding and packaging, involves rolling the trimmed composite film into a roll and packaging it. The trimming equipment in the preparation equipment for antibacterial paper film includes a support (1), a track plate (2) fixed on the support (1), a track groove (3) opened in the track plate (2), an opening opened in the track plate (2), an adjusting tube (4) inserted in the opening, an adjusting frame (5) fixed to the outer end of the adjusting tube (4), a cutting component (6) connected to the track groove (3) installed on the adjusting frame (5), and a driving part (7) connected to the cutting component (6) installed on the track plate (2). An adjustment part (8) is installed on the track plate (2) to drive the adjustment tube (4) to rotate. A cleaning part (9) for cleaning residual glue on the outside of the cutting part (6) is also fixed on the track plate (2). The adjustment part (8) includes an adjustment motor (22) fixed on the track plate (2). A lead screw (23) is rotatably installed on the track plate (2). The output end of the adjustment motor (22) is fixed to the outer end of the lead screw (23) through a coupling. A moving block (24) is threaded onto the outside of the lead screw (23). An adjustment part is fixed on the outside of the adjustment tube (4). The frame (25) and the movable block (24) are slidably inserted into the adjusting frame (25). The movable block (24) is fixed with a pin that is inserted into the groove of the adjusting frame (25). The cleaning part (9) includes an outer frame (28) fixed on the track plate (2). A threaded rod (29) is rotatably installed inside the outer frame (28). A slide rod (30) is also fixed inside the outer frame (28). A cleaning motor (31) is fixed on one side of the outer frame (28) through a motor frame. The output end of the cleaning motor (31) is connected to the threaded rod (29) through a coupling. 9) The outer end is fixed. The threaded rod (29) is threaded with a movable seat (32) that is inserted into the slide rod (30). An adjusting rod (33) is fixed on the movable seat (32). Cleaning parts (34) are fixed at both ends of the outer frame (28). Linkage parts (35) are provided inside both ends of the outer frame (28). The cleaning part (34) includes a support frame (42) fixed to the outer frame (28). A sliding column (43) is fixed at the bottom of the support frame (42). Cleaning plates (44) are slidably inserted at both ends of the sliding column (43).

2. The method for preparing a paper-coated antibacterial film according to claim 1, characterized in that: The cutting component (6) includes an I-shaped tube (10), and the adjusting frame (5) has a movable opening (11). The I-shaped tube (10) is slidably inserted into the movable opening (11). One end of the I-shaped tube (10) is fixed with a track rod (12) that is inserted into the track groove (3), and the other end is rotatably mounted with a drive shaft (13). A transmission wheel (14) that is adapted to the drive unit (7) is fixed on the outside of the drive shaft (13). A cutting wheel (15) is inserted on the outside of the drive shaft (13), and a tightening cap (16) is threaded onto the outer end of the drive shaft (13).

3. The method for preparing a paper-coated antibacterial film according to claim 2, characterized in that: The drive unit (7) includes a drive rod (17) that slides through the adjustment tube (4). The outer end of the drive rod (17) is fixed with a drive wheel (18) that is compatible with the transmission wheel (14). A drive motor (19) is fixed on the track plate (2) by a motor frame, and the output end of the drive motor (19) is fixed to the outer end of the drive rod (17) by a coupling.

4. The method for preparing a paper-coated antibacterial film according to claim 3, characterized in that: The track groove (3) consists of a fitting arc groove (20) and two separating arc grooves (21). The two separating arc grooves (21) are connected to both ends of the fitting arc groove (20). When the track rod (12) is in the fitting arc groove (20), the transmission wheel (14) is in contact with the drive wheel (18). When the track rod (12) is in the separating arc groove (21), the transmission wheel (14) is not in contact with the drive wheel (18).

5. The method for preparing a paper-coated antibacterial film according to claim 2, characterized in that: A compression spring (26) is fixed inside the movable opening (11), and one end of the compression spring (26) is fixed with an arc-shaped piece (27) that fits against the outside of the I-shaped tube (10).

6. The method for preparing a paper-coated antibacterial film according to claim 1, characterized in that: The linkage component (35) includes a linkage rod (36), a linkage wheel (37) is rotatably mounted on the bottom of the linkage rod (36), the linkage wheel (37) is adapted to the drive wheel (18) and the transmission wheel (14), a connecting frame (38) is fixed on the top of the linkage rod (36), and a connecting rod (39) fixed to the inner wall of the outer frame (28) is slidably inserted at one end of the connecting frame (38), a tension spring (40) fixed to the inner wall of the outer frame (28) and the connecting frame (38) is sleeved on the outside of the connecting rod (39), and an inclined plate (41) adapted to the adjusting rod (33) is also fixed on the connecting frame (38).

7. The method for preparing a paper-coated antibacterial film according to claim 6, characterized in that: A contact end is provided between the two cleaning plates (44) for contact with the outer side of the cutting wheel (15), and magnetic blocks that repel each other are fixed on the adjacent sides of the two cleaning plates (44). An inclined groove is provided on the outer side of the two cleaning plates (44), and a post (45) that matches the inclined groove is fixed at the bottom of the inclined plate (41).

Images