Film cutting equipment

Abstract

The present invention discloses a film cutting device, which specifically relates to the field of film cutting, including a support mechanism, one side of the support mechanism is rotatably connected with a cutting mechanism for cutting a rectangular film, one side of the support mechanism is provided with a film moving mechanism for fixing a rolled film, one side of the support mechanism is provided with a film fixing mechanism, the support mechanism includes a support panel, one side of the support panel is fixedly installed with a plurality of first side panels, and a second side panel is fixedly installed between every two adjacent first side panels, one side of the first side panel is fixedly installed with a first motor, and the cutting mechanism includes a first limiting rod for controlling the cutting width, and the first limiting rod is fixedly installed between two adjacent first side panels. The present invention enables the second sleeve to reciprocate on the outer wall of the second limiting rod, and the first sleeve to reciprocate on the outer wall of the first limiting rod, so that the cutting knife moves on a rectangular track on the film, which is more conducive to improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of film cutting, and more particularly to a film cutting device. Background Art

[0002] Film is a thin, soft, transparent sheet made of plastic, adhesive, rubber or other materials. The scientific explanation of film is a two-dimensional material formed by the deposition of atoms, molecules or ions on the surface of a substrate, such as optical film, composite film, superconducting film, polyester film, nylon film, plastic film, etc. Film is widely used in electronics, machinery, printing and other industries.

[0003] Normally, when cutting a film, it is usually necessary to manually measure the size of the film, and then mark it according to the required size before cutting. This is very troublesome to use and affects work efficiency. Therefore, the present invention relates to a film cutting device to solve the above problem. Summary of the invention

[0004] In order to overcome the above defects of the prior art, an embodiment of the present invention provides a film cutting device, which solves the problems raised in the above background technology by making the second sleeve reciprocate on the outer wall of the second limiting rod and the first sleeve reciprocate on the outer wall of the first limiting rod.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a film cutting device, comprising a supporting mechanism, one side of the supporting mechanism is rotatably connected with a cutting mechanism for cutting a rectangular film, one side of the supporting mechanism is provided with a film moving mechanism for fixing the rolled film, one side of the supporting mechanism is provided with a film fixing mechanism, the supporting mechanism comprises a supporting panel, one side of the supporting panel is fixedly installed with a plurality of first side plates, and a second side plate is fixedly installed between every two adjacent first side plates, a first motor is fixedly installed on one side of the first side plate, the cutting mechanism comprises a first limiting rod for controlling a cutting width, the first limiting rod is fixedly installed between two adjacent first side plates, a second limiting rod for controlling a cutting length is provided at the bottom of the first limiting rod, and the first limiting rod and the second limiting rod are fixedly installed. The outer wall of the lever is provided with scale grooves which are linearly and equidistantly marked in sequence, and the inner cavities of the scale grooves arranged on the outer walls of the first limit rod and the second limit rod are connected with a limited bending clamp, one end of the second limit rod is fixedly installed with a first sleeve for connecting with the first limit rod, the first sleeve is movably sleeved on the outer wall of the first limit rod, the outer wall of the second limit rod is sleeved with a second sleeve, one side of the second sleeve is fixedly installed with a cutting knife for cutting a shape, the second sleeve is rotatably connected with the first connecting block on the side away from the cutting knife, the first connecting block is fixedly installed with a moving rod on one side, the outer wall of the moving rod is sleeved with a third sleeve, one side of the third sleeve is fixedly installed with a first spring for connecting with the first connecting block, and one side of the third sleeve is rotatably connected with the second connecting block for connecting with the first motor.

[0006] In a preferred embodiment, the film moving mechanism includes a connecting rod, a connecting seat is fixedly installed on one side of the connecting rod, and the interior of the connecting seat is rotatably connected to a first rotating rod and a second rotating rod that are parallel to each other and meshed with each other, and the outer walls of the first rotating rod and the second rotating rod are fixedly installed with wear-resistant pads, and one side of the first side plate is rotatably connected to a third rotating rod, and the outer wall of the third rotating rod is fixedly installed with a fourth rotating rod.

[0007] In a preferred embodiment, one end of the third rotating rod is fixedly connected to the second motor, the outer wall of the third rotating rod is engaged with a conveyor belt for connecting to the first rotating rod, and the outer wall of the conveyor belt is fixedly mounted with a hinged push plate.

[0008] In a preferred embodiment, the film fixing mechanism includes a first bracket, which is fixedly mounted on the second side plate, a sleeve is fixedly mounted on one side of the first bracket, the sleeve is hollow, and one end of the sleeve is connected to a suction cup for adsorbing and fixing the film, and a first one-way check valve is fixedly mounted at the connection between the suction cup and the sleeve.

[0009] In a preferred embodiment, a second bracket for connecting to the second side plate is provided at the bottom of the first bracket, the second bracket is slidably mounted on the second side plate, and pressure plates are fixedly mounted on both sides of the second bracket, and a piston rod for connecting to the second bracket is inserted into the inner cavity of the sleeve.

[0010] In a preferred embodiment, a plurality of second springs are fixedly mounted between the first bracket and the second bracket, and a limit block for limiting the moving range of the second bracket is fixedly mounted on one side of the second side plate.

[0011] In a preferred embodiment, the outer wall of the sleeve is connected to an annular mounting seat, a second one-way check valve is fixedly installed at the connection between the annular mounting seat and the sleeve, the outer wall of the annular mounting seat is connected to a plurality of ventilation pipes, and one end of the plurality of ventilation pipes is fixedly connected to a water storage ring, and a steel ball is rotatably connected to one side of the water storage ring.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention is provided with a first limiting rod for controlling the cutting width and a second limiting rod for controlling the cutting length. The third sleeve is rotated to limit the second sleeve to reciprocate on the outer wall of the second limiting rod, and the first sleeve is driven to reciprocate on the outer wall of the first limiting rod, so that the cutting knife moves on the film in a rectangular track, so that a large piece of film can be smoothly and conveniently cut into a plurality of film sheets of equal size, which is more conducive to improving work efficiency.

[0014] 2. The present invention drives the first and second rotating rods to rotate when the third rotating rod of the winding film waste drives the film to gradually move downward to adjust the cutting position. The moving hinged push plate pushes the pressure plate to move the second bracket downward, and the piston rod is pulled in the inner cavity of the sleeve to extract the air between the film and the suction cup, thereby adsorbing and fixing the film on the suction cup. At the same time, the second bracket loses external force due to the bending of the hinged push plate, and the second spring rebounds to allow the gas in the inner cavity of the sleeve to enter the inner cavity of the water storage ring through the ventilation pipe, and the water in the inner cavity of the water storage ring is squeezed out to moisten the connection between the suction cup and the film, thereby causing the suction cup to lose its adsorption force, thereby facilitating the rapid removal of the successfully cut film sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall structure of the cutting mechanism of the present invention.

[0017] Figure 3 It is a schematic diagram of the axial side structure of the present invention.

[0018] Figure 4 For the present invention Figure 3 A-section structure enlarged view.

[0019] Figure 5 For the present invention Figure 3 Enlarged view of the structure of part B.

[0020] Figure 6 It is a schematic diagram of the back structure of the present invention.

[0021] Figure 7 For the present invention Figure 6 Enlarged view of the C structure.

[0022] The reference numerals are: 1 supporting mechanism, 101 supporting panel, 102 first side plate, 103 second side plate, 104 first motor, 2 cutting mechanism, 21 first limiting rod, 22 second limiting rod, 23 first sleeve, 24 second sleeve, 25 cutting knife, 26 first connecting block, 27 moving rod, 28 third sleeve, 29 second connecting block, 210 first spring, 211 limiting bending clamp, 3 film moving mechanism, 31 connecting rod, 32 connecting seat, 33 first rotating rod, 34 second rotating rod, 35 wear-resistant pad, 36 third rotating rod, 37 fourth rotating rod, 38 second motor, 39 conveyor belt, 310 hinged push plate, 4 film fixing mechanism, 41 first bracket, 42 sleeve, 43 suction cup, 44 water storage ring, 45 steel ball, 46 ventilation pipe, 47 annular mounting seat, 48 second bracket, 49 piston rod, 410 second spring, 411 pressure plate, 412 limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Refer to the instruction manual Figure 1-7 , a film cutting device according to an embodiment of the present invention, such as Figure 1 As shown, it includes a support mechanism 1, one side of the support mechanism 1 is rotatably connected with a cutting mechanism 2 for cutting a rectangular film, one side of the support mechanism 1 is provided with a film moving mechanism 3 for fixing the rolled film, and one side of the support mechanism 1 is provided with a film fixing mechanism 4. When in use, the film fixing mechanism 4 is adsorbed and fixed on one side of the film and cooperates with the cutting mechanism 2 to prevent the film from shaking and affecting the actual cutting size during the process of cutting the film by the cutting mechanism 2. Figure 3As shown, the support mechanism 1 includes a support panel 101, a plurality of first side panels 102 are fixedly installed on one side of the support panel 101, each two adjacent first side panels 102 are symmetrically arranged about the center line of the support panel 101, and a second side panel 103 is fixedly installed between each two adjacent first side panels 102. Figure 6 As shown, a first motor 104 is fixedly mounted on one side of the first side plate 102 .

[0025] Reference Figure 2 As shown, the cutting mechanism 2 is used for cutting out rectangular film sheets of the same size. The cutting mechanism 2 includes a first limiting rod 21 for controlling the cutting width. The first limiting rod 21 is fixedly installed between two adjacent first side plates 102. The bottom of the first limiting rod 21 is provided with a second limiting rod 22 for controlling the cutting length. The outer walls of the first limiting rod 21 and the second limiting rod 22 are linearly and equidistantly marked with scale grooves, wherein the scale grooves on the first limiting rod 21 are formed by the first limiting rod 21. The scale grooves of the second limiting rod 22 are opened equidistantly from the top as the starting point downward, and the scale grooves provided on the outer walls of the first limiting rod 21 and the second limiting rod 22 are inserted with the limited bending clamp 211. When in use, according to the actual required film size, the limited bending clamp 211 is clamped in the corresponding scale grooves provided on the first limiting rod 21 and the second limiting rod 22, so that the first limiting rod 21 can adjust the first limiting rod 21 with its own center line as the symmetry axis. The width of the second limiting rod 21 is adjusted to control the width of the film, and the limiting bending clip 211 is clamped in the scale groove of the lower half of the second limiting rod 22 to adjust the length of the film. At the same time, a first sleeve 23 for connecting with the first limiting rod 21 is fixedly installed at one end of the second limiting rod 22. The first sleeve 23 is movably sleeved on the outer wall of the first limiting rod 21. The outer wall of the second limiting rod 22 is sleeved with a second sleeve 24. A cutting knife 2 for cutting a shape is fixedly installed on one side of the second sleeve 24. 5, the second sleeve 24 is rotatably connected to the first connecting block 26 at one side away from the cutting knife 25, a moving rod 27 is fixedly installed at one side of the first connecting block 26, a third sleeve 28 is sleeved on the outer wall of the moving rod 27, a first spring 210 for connecting with the first connecting block 26 is fixedly installed at one side of the third sleeve 28, a second connecting block 29 for connecting with the supporting panel 101 is rotatably connected to one side of the third sleeve 28, and the third sleeve 28 is fixedly connected to the first motor 104, combined with Figure 2As shown, when the first motor 104 operates and rotates counterclockwise, the third sleeve 28 can be driven to rotate. At the same time, combined with the limit of the moving rod 27, the third sleeve 28 drives the moving rod 27 to rotate counterclockwise while the moving rod 27 moves in the inner cavity of the third sleeve 28. When the third sleeve 28 is close to the first connecting block 26, the first spring 210 is in a contracted state. When the third sleeve 28 exceeds the center line of the moving rod 27, the first spring 210 is in an expanded state. At the same time, the first connecting block 26 rotates on one side of the second sleeve 24, and the second sleeve 24 can be driven to move upward to the outer wall of the second limiting rod 22 through the first connecting block 26. At the same time, combined with the limit of the second sleeve 24 on the second limiting rod 22, the first sleeve 23 moves leftward to the outer wall of the first limiting rod 21. When the first sleeve 23 moves to the leftmost limiting bent clamp 211 of the first limiting rod 21, the cutting of a wide edge of the film can be completed. After that, the rotating moving rod 2 7 drives the second sleeve 24 to move downward on the outer wall of the second limiting rod 22, and the first spring 210 gradually changes from a contracted state to an expanded state, so that the third sleeve 28 is closer to the end of the moving rod 27 away from the first connecting block 26. When the second sleeve 24 is close to the limiting bent clip 211 stuck on the second limiting rod 22, the cutting of one long side of the film can be achieved. After that, the third sleeve 28 continues to rotate, and the first sleeve 23 gradually moves to the right side of the first limiting rod 21. The first spring 210 gradually contracts and expands, and the third sleeve 28 gradually slides back and forth on the outer wall of the moving rod 27. When the first sleeve 23 reaches the limiting bent clamp 211 on the right side of the first limiting rod 21, the cutting of the second wide side of the film can be completed. The third sleeve 28 continues to rotate back and forth in sequence, and the second sleeve 24 moves upward on the outer wall of the second limiting rod 22. When the second sleeve 24 moves to the first sleeve 23, the second long side of the film can be cut.

[0026] Reference Figure 4 As shown, the film moving mechanism 3 includes a connecting rod 31, a connecting seat 32 is fixedly installed on one side of the connecting rod 31, and a first rotating rod 33 and a second rotating rod 34 that are parallel to each other and mesh with each other are rotatably connected inside the connecting seat 32, and the outer walls of the first rotating rod 33 and the second rotating rod 34 are fixedly installed with wear-resistant pads 35. Figure 5As shown, one side of the first side plate 102 is rotatably connected to the third rotating rod 36, and the outer wall of the third rotating rod 36 is fixedly installed with the fourth rotating rod 37. In actual use, the film passes through between the first rotating rod 33 and the second rotating rod 34, and passes through the gap between the third rotating rod 36 and the fourth rotating rod 37, and is wrapped around the outer wall of the third rotating rod 36, so that the film and the supporting panel 101 are maintained in a parallel state and supported on one side of the cutting knife 25. At the same time, a second motor 38 is fixedly connected to one end of the third rotating rod 36, and the outer wall of the third rotating rod 36 is meshed with a conveyor belt 39 for connecting to the first rotating rod 33, and the outer wall of the conveyor belt 39 is fixedly installed A hinged push plate 310 is installed. When the second motor 38 is in operation, the third rotating rod 36 is driven to rotate, and the conveyor belt 39 meshing with the third rotating rod 36 is combined to drive the first rotating rod 33 to rotate, so that the second rotating rod 34 and the first rotating rod 33 rotate in the opposite direction, so that the film clamped between the first rotating rod 33 and the second rotating rod 34 moves between the two. At the same time, the film wrapped around the third rotating rod 36 rotates with the third rotating rod 36 and the fourth rotating rod 37 is limited, so that after the film is cut, the excess film can be orderly wrapped around the third rotating rod 36 for unified collection, so as to avoid film waste falling to the ground and being difficult to clean.

[0027] Reference Figure 7 As shown, the film fixing mechanism 4 includes a first bracket 41, which is fixedly mounted on the second side plate 103. A sleeve 42 is fixedly mounted on one side of the first bracket 41. The sleeve 42 is hollow, and one end of the sleeve 42 is connected to a suction cup 43 for adsorbing and fixing the film. A first one-way check valve is fixedly mounted at the connection between the suction cup 43 and the sleeve 42. When the film is clamped between the first rotating rod 33 and the second rotating rod 34, and one end of the film is fixed between the third rotating rod 36 and the fourth rotating rod 37, While the film remains parallel to the support panel 101, it is attached to one side of the suction cup 43. The continuously moving cutting knife 25 continuously squeezes the film while cutting the film, so that the contact between the film and the first sleeve 23 is tightened. The first one-way check valve between the suction cup 43 and the sleeve 42 is used to squeeze the gas between the first sleeve 23 and the film into the inner cavity of the sleeve 42, so that the first sleeve 23 can firmly adsorb and fix the film, making it easier for the cutting knife 25 to perform cutting work.

[0028] Further, such as Figure 5As shown, in order to improve the adsorption strength of the suction cup 43 on the film, a second bracket 48 connected to the second side plate 103 is provided at the bottom of the first bracket 41, and the second bracket 48 is slidably mounted on the second side plate 103, and pressure plates 411 are fixedly mounted on both sides of the second bracket 48, and a piston rod 49 connected to the second bracket 48 is inserted into the inner cavity of the sleeve 42. When the film is clamped between the first rotating rod 33 and the second rotating rod 34, and the film is rolled up by rotating the third rotating rod 36, When the cutting position of the film is adjusted, the articulated push plate 310 is gradually moved downward by the conveyor belt 39 moving on the outer wall of the third rotating rod 36 and the first rotating rod 33. When the articulated push plate 310 contacts the pressure plate 411, it can push the second bracket 48 to slide downward on one side of the second side plate 103, thereby driving the piston rod 49 to be pulled in the inner cavity of the sleeve 42, so that the gas between the suction cup 43 and the film can be extracted, thereby making it easier to adsorb and fix the film in time for subsequent cutting work.

[0029] At the same time, in order to facilitate the picking up of the cut film, a plurality of second springs 410 are fixedly installed between the first bracket 41 and the second bracket 48. The second springs 410 have elastic restoring force. At the same time, a limit block 412 for limiting the moving range of the second bracket 48 is fixedly installed on one side of the second side plate 103. When the hinged push plate 310 pushes the pressure plate 411 to move the second bracket 48 downward, as the second bracket 48 gradually moves away from the first bracket 41, the second springs 410 gradually expand. When it reaches the limit block 412, the articulated push plate 310 is pressed against the second bracket 48 as the conveyor belt 39 moves and cannot move further. Therefore, when the pushing force of the articulated push plate 310 on the pressure plate 411 reaches the standard force, the center line of the articulated push plate 310 will bend upward by 90 degrees, so that the second bracket 48 can no longer be pushed. At this time, the pressure plate 411 loses its squeezing force, and the elastic restoring force of the second spring 410 slowly rebounds upward, so that the piston rod 49 is gradually inserted back into the inner cavity of the sleeve 42. Further, combined with Figure 7As shown, an annular mounting seat 47 is connected to the outer wall of the sleeve 42, and a second one-way check valve is fixedly installed at the connection between the annular mounting seat 47 and the sleeve 42. A plurality of ventilation pipes 46 are connected to the outer wall of the annular mounting seat 47, and one end of the plurality of ventilation pipes 46 is fixedly connected to a water storage ring 44, and a steel ball 45 is rotatably connected to one side of the water storage ring 44. When the piston rod 49 is gradually inserted back into the inner cavity of the sleeve 42, the gas entering the inner cavity of the sleeve 42 enters the inner cavity of the water storage ring 44 through the ventilation pipe 46 through the second one-way check valve, and squeezes the water in the inner cavity of the water storage ring 44, so that the water in the inner cavity of the water storage ring 44 flows out from the gap between the water storage ring 44 and the steel ball 45, thereby wetting the connection between the first sleeve 23 and the film, so that the first sleeve 23 loses its adsorption force on the film, thereby facilitating the quick removal of the cut film from the first sleeve 23.

[0030] It should be noted that: in actual use, the film is first clamped between the first rotating rod 33 and the second rotating rod 34, and is wound around the outer wall of the third rotating rod 36. The second motor 38 is started to make the third rotating rod 36 reel in a portion of the film so that the film is supported on one side of the supporting panel 101 in a fixed and taut state. Then, the first motor 104 is started to rotate the third sleeve 28, so that the first sleeve 23 moves to the outer wall of the first limiting rod 21, and the second sleeve 24 moves to the outer wall of the second limiting rod 22. At the same time, the cutting knife 25 on the second sleeve 24 is used to contact the film. During the contact process, the film is continuously squeezed, and at the same time, the hinged push plate 310 moving downward pushes the pressure plate 411 to move, so that the piston rod 49 is pulled in the inner cavity of the sleeve 42, thereby squeezing the gas between the first sleeve 23 and the film into the inner cavity of the sleeve 42, so that the first sleeve 23 firmly adsorbs the film, and then the second sleeve 24 is restricted to move to the outer wall of the second limit rod 22 according to the rotating third sleeve 28, and the first sleeve 23 moves to the outer wall of the first limit rod 21, so that a plurality of rectangular film sheets of equal size can be cut out, which is more conducive to improving work efficiency.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0033] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A film cutting device, comprising a support mechanism (1), one side of the support mechanism (1) is rotatably connected to a cutting mechanism (2) for cutting a rectangular film, one side of the support mechanism (1) is provided with a film moving mechanism (3) for fixing a rolled film, and one side of the support mechanism (1) is provided with a film fixing mechanism (4), characterized in that: The support mechanism (1) comprises a support panel (101), a plurality of first side panels (102) are fixedly mounted on one side of the support panel (101), and a second side panel (103) is fixedly mounted between every two adjacent first side panels (102), and a first motor (104) is fixedly mounted on one side of the first side panel (102); the cutting mechanism (2) comprises a first limiting rod (21) for controlling the cutting width, the first limiting rod (21) is fixedly mounted between two adjacent first side panels (102), a second limiting rod (22) for controlling the cutting length is disposed at the bottom of the first limiting rod (21), scale grooves are linearly and equidistantly marked on the outer walls of the first limiting rod (21) and the second limiting rod (22), and a limiting bent clamp (211) is inserted into the inner cavity of the scale grooves disposed on the outer walls of the first limiting rod (21) and the second limiting rod (22), and the A first sleeve (23) for connecting with the first limiting rod (21) is fixedly mounted on one end of the second limiting rod (22); the first sleeve (23) is movably sleeved on the outer wall of the first limiting rod (21); a second sleeve (24) is sleeved on the outer wall of the second limiting rod (22); a cutting knife (25) for cutting a shape is fixedly mounted on one side of the second sleeve (24); a first connecting block (26) is rotatably connected to the side of the second sleeve (24) away from the cutting knife (25); a moving rod (27) is fixedly mounted on one side of the first connecting block (26); a third sleeve (28) is sleeved on the outer wall of the moving rod (27); a first spring (210) for connecting with the first connecting block (26) is fixedly mounted on one side of the third sleeve (28); and a second connecting block (29) for connecting with the first motor (104) is rotatably connected to one side of the third sleeve (28).

2. A film cutting device according to claim 1, characterized in that: The film moving mechanism (3) comprises a connecting rod (31), a connecting seat (32) is fixedly installed on one side of the connecting rod (31), a first rotating rod (33) and a second rotating rod (34) which are parallel to each other and meshed with each other are rotatably connected inside the connecting seat (32), wear-resistant pads (35) are fixedly installed on the outer walls of the first rotating rod (33) and the second rotating rod (34), a third rotating rod (36) is rotatably connected to one side of the first side plate (102), and a fourth rotating rod (37) is fixedly installed on the outer wall of the third rotating rod (36).

3. A film cutting device according to claim 2, characterized in that: One end of the third rotating rod (36) is fixedly connected to a second motor (38), the outer wall of the third rotating rod (36) is engaged with a conveyor belt (39) for connecting to the first rotating rod (33), and the outer wall of the conveyor belt (39) is fixedly installed with a hinged push plate (310).

4. A film cutting device according to claim 1, characterized in that: The film fixing mechanism (4) comprises a first bracket (41), the first bracket (41) is fixedly mounted on the second side plate (103), a sleeve (42) is fixedly mounted on one side of the first bracket (41), the sleeve (42) is hollow, and one end of the sleeve (42) is connected to a suction cup (43) for adsorbing and fixing the film, and a first one-way check valve is fixedly mounted at the connection between the suction cup (43) and the sleeve (42).

5. A film cutting device according to claim 4, characterized in that: A second bracket (48) for connecting to the second side plate (103) is provided at the bottom of the first bracket (41); the second bracket (48) is slidably mounted on the second side plate (103), and pressure plates (411) are fixedly mounted on both sides of the second bracket (48); and a piston rod (49) for connecting to the second bracket (48) is inserted into the inner cavity of the sleeve (42).

6. A film cutting device according to claim 5, characterized in that: A plurality of second springs (410) are fixedly mounted between the first bracket (41) and the second bracket (48), and a limit block (412) for limiting the movement range of the second bracket (48) is fixedly mounted on one side of the second side plate (103).

7. A film cutting device according to claim 6, characterized in that: The outer wall of the sleeve (42) is connected to an annular mounting seat (47), and a second one-way check valve is fixedly installed at the connection between the annular mounting seat (47) and the sleeve (42). The outer wall of the annular mounting seat (47) is connected to a plurality of ventilation pipes (46), and one end of each of the plurality of ventilation pipes (46) is fixedly connected to a water storage ring (44), and a steel ball (45) is rotatably connected to one side of the water storage ring (44).

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