Multi-specification rapid film preparation slitting system and method for flexible plastic packaging material

Abstract

This invention discloses a multi-specification rapid film preparation and slitting system and method for flexible plastic packaging materials. The invention relates to the field of film slitting technology and includes a frame. The frame is equipped with a take-up roller, a release roller, a first motor, and a guide roller. Several first motors are connected to the take-up roller and the release roller respectively. The frame is equipped with a controller and a mounting base, and a second motor and a guide rail are detachably connected to the mounting base. The output shaft of the second motor is connected to a spline shaft. The second motor drives the spline shaft to rotate, causing multiple spline sleeves to rotate on their respective first covers. This, in turn, causes all the cutters to rotate and enter the first cover, simultaneously causing the second cover to close onto the first cover, effectively shielding and protecting the cutters. Simultaneously, the clamping components are no longer pressed against the guide rail, thus eliminating the fixation of all first covers relative to the guide rail. This facilitates individual adjustment of the position of each first cover, allowing for rapid adjustment of the position of all cutters.

Description

Technical Field

[0001] This invention relates to the field of film slitting technology, specifically to a multi-specification rapid film preparation and slitting system and method for flexible plastic packaging materials. Background Technology

[0002] Film is a flexible plastic packaging material. Different products have different size requirements for the film used in packaging. Therefore, in order to meet the packaging needs of different products, the film needs to be cut according to the required size of the product, which will form film rolls of various specifications. A film slitting machine is a device that cuts wide films into multiple narrow films. A search of existing technology revealed that patent announcement number CN209755325U discloses a film slitting machine, which includes a frame, a transmission roller rotatably set on the frame, a slitting roller rotatably set on the frame, and an adjustable blade holder mechanism set on the frame. The blade holder mechanism is connected to a blade plate, and a circular blade is rotatably connected to the tip of the blade plate. The existing technology adjusts the horizontal position of the blade by adjusting the first lead screw, thereby cutting film rolls of the required specifications as needed. By raising and lowering the frame, the height of the blade is adjusted, thereby cutting the film according to the thickness of the film.

[0003] However, this technology cannot simultaneously slit multiple film rolls using a single blade. Adding more blades would not be feasible due to space constraints, as would adding more lead screws to adjust their positions. Therefore, existing technology typically involves sliding multiple blades onto a rod, each secured with screws. This allows for the slit of multiple film rolls, but manual operation is highly dangerous and cumbersome. The main danger lies in adjusting and changing blades, requiring manual screw rotation and close proximity to the blade edge to align with the markings. Accidents during operation can result in serious injuries. To address this issue, each slitting blade can be driven by a separate motor, with a wheel moving along a common rack. Each motor is then fixedly connected to a slitting blade, allowing each motor to travel a different distance, ensuring each blade is positioned as needed. This approach offers faster blade adjustment, is more space-efficient, and reduces the risk of injury.

[0004] However, the existing technology can only safely adjust the horizontal position of the blade, but cannot safely adjust the angle and height of the blade, nor can it safely change the blade. Furthermore, each slitting blade needs to be equipped with a motor and a distance detection sensor, resulting in high machine costs and failure rates, and requiring frequent maintenance. Therefore, how to adjust and change the blade in a low-cost, efficient and safe manner is a problem that needs to be solved now. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-specification rapid film preparation and slitting system and method for flexible plastic packaging materials, which solves the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-specification rapid film preparation and slitting system for flexible plastic packaging materials, comprising a frame, wherein a take-up roller, a release roller, a first motor, and a guide roller are arranged on the frame, and several first motors are respectively connected to the take-up roller and the release roller; a controller and a mounting base are arranged on the frame, and a second motor and a guide rail are detachably connected to the mounting base; the output shaft of the second motor is connected to a splined shaft, and several cutting mechanisms are slidably connected to the splined shaft; The cutting mechanism includes a first cover, on which a spline sleeve is rotatably connected and slidably connected to a spline shaft. The spline sleeve is provided with a connecting frame, a clamping component, and a transmission component. The connecting frame is connected to a cutter holder through an adjusting component. A cutter is inserted into the cutter holder, and a screw that contacts the cutter is connected to the cutter holder. A second cover is connected to the transmission component. A guide rod that is slidably connected to a guide rail is provided on the first cover.

[0007] Preferably, the adjusting assembly includes a protruding rod disposed on a connecting frame, a screw rod first threadedly connected to the protruding rod, the top of the screw rod first being rotatably connected to a support frame, the support frame being vertically slidably connected to the connecting frame, a rotating shaft being rotatably connected to the support frame, a gear ring and a tool holder being disposed on the rotating shaft, a toothed rod being meshed with the gear ring and slidably connected to the support frame, and a screw rod second being rotatably connected to the toothed rod, the screw rod second being threadedly connected to the support frame.

[0008] Preferably, the clamping assembly includes a clamping rod that slides through the cover body, the clamping rod abutting against the guide rail, a slider connected to the clamping rod, a return spring connected to the cover body on the slider, a roller on the slider and the roller contacting a cam, the cam being mounted on a spline sleeve, and the slider being slidably connected to a slide bar connected to the cover body.

[0009] Preferably, the transmission assembly includes two rotating shafts, both of which are rotatably connected to the first housing via bearings. Each of the two rotating shafts is provided with a gear ring, and a synchronous belt connects the two gear rings. One rotating shaft is connected to the second housing, and the other rotating shaft and spline sleeve are both provided with gears, and the two gears mesh with each other.

[0010] Preferably, the first cover has a through hole that is opposite to the screw after it is stored, the second cover has a groove that is aligned with the cutter, and the frame has a scale bar located below the cutter.

[0011] Preferably, the cover body one has a through groove, and both the screw one and screw two, after being stored, extend out of the cover body one through the through groove.

[0012] Preferably, the frame is provided with a moving mechanism for moving the slide, the slide being rotatably connected to the other end of the spline shaft, and the slide being detachably connected to the other end of the guide rail.

[0013] Preferably, the moving mechanism includes a guide frame mounted on the frame, and a screw three is threadedly connected to the guide frame, and the screw three is rotatably connected to the slide.

[0014] A method for a rapid multi-specification film preparation and slitting system for flexible plastic packaging materials, the method comprising the following steps: Step 1: When it is necessary to change the width specification of the film roll, control motor 2 to work, so that the spline shaft drives the spline sleeve to rotate on the respective cover 1, and then the connecting frame drives the knife holder to rotate through the adjustment component, and drives the cutter to rotate and be stored in the cover 1. At this time, the transmission component drives the cover 2 to rotate in the opposite direction and cover the cover 1, further blocking the cutter. Step 2: When the spline sleeve rotates to store the cutter, the clamping component will no longer clamp against the guide rail, which means that all the covers will be removed from the guide rail. At this time, the covers can be moved safely one by one by the guide rod and the guide rail. Step 3: When each cover 1 moves to the required position, that is, when each cutter also moves to the required position, the spline shaft is rotated and reset by motor 2. This causes the spline sleeve to rotate the cutter holder through the connecting bracket and adjusting component, which in turn causes the cutter to rotate away from cover 1. At this time, the transmission component causes cover 2 to rotate in the opposite direction and leave cover 1. When the spline sleeve rotates to store the cutter, the clamping component simultaneously clamps the guide rail, that is, at the same time, all covers 1 are fixed relative to the guide rail, that is, the horizontal position of the cutter is adjusted at the same time.

[0015] In both steps one and three, the controller controls the operation of motor two.

[0016] This invention provides a rapid film preparation and slitting system and method for flexible plastic packaging materials in multiple specifications. Compared with the prior art, it has the following advantages: 1. The multi-specification rapid film preparation and slitting system and method for flexible plastic packaging materials uses a motor to drive a spline shaft to rotate, causing multiple spline sleeves to rotate on their respective covers. This, in turn, causes all the cutters to rotate into the covers, while simultaneously causing the covers to close onto the covers, effectively shielding and protecting the cutters. At the same time, the clamping components are no longer pressed against the guide rail, thus eliminating the fixation of all covers relative to the guide rail. This facilitates individual adjustment of the cover positions, allowing for rapid adjustment of all cutter positions. After adjustment, the cutters unscrew, the covers separate from the covers, and the clamping components press against the guide rail, fixing the cutter positions. This achieves low-cost, efficient, and safe cutter adjustment.

[0017] 2. The multi-specification rapid film preparation and slitting system and method for flexible plastic packaging materials has a through hole on the cover body, which is opposite to the screw after it is stored. This allows the tool to be operated through the through hole when it is necessary to change the blade and tighten or loosen the screw, improving the safety of blade changing. The cover body has a through groove, and the screws 1 and 2 used to adjust the height and angle of the cutter can both extend out of the cover body through the through groove after being stored. Thus, the adjustment of the horizontal position, height, and angle of the cutter, as well as the tightening or loosening of the screw when changing the blade, can all be performed outside the cover body. This achieves the effect of completely storing the blade and eliminating the need for the hand to enter the danger zone, thus eliminating the risk of cuts during manual adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective illustration; Figure 3 This is a schematic diagram of the film cutting process of the present invention; Figure 4 This is a schematic diagram of the cutting mechanism of the present invention in use; Figure 5 For the present invention Figure 4 Another perspective illustration; Figure 6 This is a schematic diagram of the clamping component of the present invention; Figure 7 This is a schematic diagram of the adjustment component of the present invention; Figure 8 This is an overall schematic diagram of the cutting mechanism of the present invention when it is not in use; Figure 9 This is a schematic diagram of the cutting mechanism of the present invention when it is not in use; Figure 10 For the present invention Figure 9 A schematic diagram of the interior of the central cover; Figure 11 This is a schematic diagram of the cutter and scale bar of the present invention; Figure 12 This is a schematic diagram of the slide and moving mechanism of the present invention.

[0019] In the diagram: 1. Frame; 2. Take-up roller; 3. Release roller; 4. Motor 1; 5. Guide roller; 6. Controller; 7. Mounting base; 8. Motor 2; 9. Splined shaft; 10. Cutting mechanism; 101. Cover 1; 102. Splined sleeve; 103. Connecting frame; 104. Adjusting assembly; 1041. Protruding rod; 1042. Screw 1; 1043. Support frame; 1044. Rotating shaft; 1045. Gear ring; 1046. Gear rack; 1047. Screw 2; 105. Blade holder; 106. Cutting blade; 107. 108. Screw; 1081. Clamping assembly; 1082. Clamping rod; 1083. Slider; 1084. Return spring; 1085. Roller; 1086. Cam; 1087. Slide bar; 109. Transmission assembly; 1091. Rotating shaft; 1092. Synchronous belt; 1093. Gear; 1010. Cover body two; 1011. Guide rod; 1012. Through hole; 1013. Through groove; 11. Guide rail; 12. Slide block; 13. Moving mechanism; 131. Guide frame; 132. Screw three; 14. Scale rod. Detailed Implementation

[0020] 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.

[0021] See Figures 1-12 The present invention provides the following two technical solutions: The first embodiment: a multi-specification rapid film preparation and slitting system for flexible plastic packaging materials, including a frame 1. The frame 1 is rotatably connected to two take-up rollers 2, one release roller 3, and several guide rollers 5 via bearings. The frame 1 is also equipped with three motors 4, which are respectively connected to the two take-up rollers 2 and the release roller 3. The take-up rollers 2 and the release roller 3 are both air-expanding shafts to facilitate the tensioning of the film roll. The two take-up rollers 2 adopt an upper and lower air-expanding shaft design. The several guide rollers 5 have the same structure as those used in existing film slitting machines and are used for normal film conveying and slitting. The frame 1 also has essential structures such as tension control, deviation correction control, and detection devices, all of which can be achieved using existing technologies. The frame 1 is equipped with a controller 6 and a mounting base 7. The controller 6 is used to control the electrical components in the document, and the mounting base 7 is detachably connected to a motor 8 and a guide rail 11. The output shaft of the motor 8 is connected to a splined shaft 9. The motor 8 can be a motor that can accurately control the rotation angle on the market. Several cutting mechanisms 10 are slidably connected to the splined shaft 9. The cutting mechanism 10 includes a cover 101, on which a spline sleeve 102 is rotatably connected via bearings. This ensures that the spline sleeve 102 does not rotate the cover 101 when it rotates. The spline sleeve 102 is slidably connected to the spline shaft 9. The spline sleeve 102 is equipped with a connecting bracket 103, a clamping assembly 108, and a transmission assembly 109. The connecting bracket 103 is connected to a blade holder 105 via an adjusting assembly 104. A cutting blade 106 is inserted into the blade holder 105, and a screw 107 is connected to the blade holder 105 to contact the cutting blade 106. Tightening the screw 107 presses and fixes the cutting blade 106 within the blade holder 105. The insertion of the cutting blade 106 into the blade holder 105 facilitates positioning of the cutting blade 106 during blade replacement, freeing the hand to tighten the screw 107 and reducing safety hazards. A second cover 1010 is connected to the transmission assembly 109. This is for the purpose of... 01. A guide rod 1011 is provided on the cover 101 and slidably connected to the guide rail 11. In order to prevent the cover 101 from moving easily after being manually moved to the required position, so that the motor 28 can drive the clamping component 108 to clamp the cover 101 on the guide rail 11. An anti-slip layer is provided on the right end of the guide rod 1011 so as to pre-position. When the spline sleeve 102 drives the cutter 106 to rotate and retract, it also drives the clamping component 108 to no longer clamp the guide rail 11, and the transmission component 109 drives the cover 2 1010 to cover the cover 101. When the spline sleeve 102 drives the cutter 106 to rotate and unfold, it also drives the clamping component 108 to clamp the guide rail 11, and the transmission component 109 drives the cover 2 1010 to leave the cover 101. The top left side of the cover 101 is open, and the cover 2 1010 is L-shaped.

[0022] The adjusting assembly 104 includes a protruding rod 1041 mounted on the connecting frame 103, a screw 1042 threadedly connected to the protruding rod 1041, the top of the screw 1042 being rotatably connected to the support frame 1043 via a bearing, and the support frame 1043 being vertically slidably connected to the connecting frame 103. That is, by rotating the screw 1042, the support frame 1043 moves vertically, thus adjusting the height of the cutter 106. A rotating shaft 1044 is rotatably connected to the support frame 1043 via a bearing, and the rotating shaft 1044 is equipped with... The gear ring 1045 and the cutter holder 105 are connected. The gear ring 1045 is meshed with a toothed rod 1046 that is slidably connected to the support frame 1043. The toothed rod 1046 is rotatably connected to a screw 1047 through a bearing. The screw 1047 is threaded onto the support frame 1043. Rotating the screw 1047 causes the toothed rod 1046 to drive the gear ring 1045 to rotate, which in turn drives the rotating shaft 1044 to rotate, causing the cutter holder 105 to rotate. When adjusting the height and angle of the cutter 106, fine adjustments can be made to meet the current needs.

[0023] The clamping assembly 108 includes a clamping rod 1081 that slides through the cover 101. The clamping rod 1081 abuts against the guide rail 11. A slider 1082 is connected to the clamping rod 1081. A return spring 1083 connected to the cover 101 is provided on the slider 1082. A roller 1084 is provided on the slider 1082, and the roller 1084 contacts a cam 1085. The cam 1085 is provided on a spline sleeve 102. The slider 1082 is slidably connected to a slide bar 1086 connected to the cover 101. Rotating the spline sleeve 102 causes the cam 1085 to rotate. When the farthest point contacts the roller 1084, the return spring 1083... Under compression, the slider 1082 moves on the slide bar 1086, which in turn drives the clamping rod 1081 to extend and press against the guide rail 11. In order to improve the friction, an anti-slip pad is provided on the clamping rod 1081. When the farthest point of the cam 1085 leaves the roller 1084, the return spring 1083 pushes the clamping rod 1081 to no longer press against the guide rail 11, thus canceling the fixation of the cover 101. The clamping component 108 can also adopt a crank slider structure or other existing structures, as long as it can realize that when the spline sleeve 102 drives the cutter 106 to rotate and store, it simultaneously drives the clamping component 108 to retract and no longer press against the guide rail 11, and vice versa.

[0024] The transmission assembly 109 includes two rotating shafts 1091, both of which are rotatably connected to the cover 101 via bearings. Each of the two rotating shafts 1091 is provided with a gear ring, and a synchronous belt 1092 is connected between the two gear rings to enable synchronous connection. In order to ensure that the cutter 106 rotates clockwise without obstruction and can effectively shield and protect, one rotating shaft 1091 is connected to the cover 1010. The other rotating shaft 1091 and the spline sleeve 102 are both provided with gears 1093. The two gears 1093 mesh with each other, so that the rotating shaft 1091 and the spline sleeve 102 rotate in opposite directions, which allows the cutter 106 to be stored and the cover 1010 to be closed.

[0025] The cover 101 has a through hole 1012, which is opposite to the screw 107 after it is stored. This allows the tool to be operated through the through hole 1012 when it is necessary to change the blade and tighten or loosen the screw 107, thus improving the safety of blade changing. The size of the through hole 1012 should be adapted to the position of the screw 107 after the daily adjustment of the height and angle of the cutter 106. The cover 1010 has a cutting groove aligned with the cutter 106, and the frame 1 is equipped with a scale rod 14 located below the cutter 106. This allows the current position to be identified by aligning the cutting groove with the scale rod 14 when the cutter 106 is stored.

[0026] The cover 101 has a through groove 1013, and the screws 1042 and 1047, after being stored, extend out of the cover 101 through the through groove 1013. The screws 1042 and 1047, which are used to adjust the height and angle of the cutter 106, can extend out of the cover 101 through the through groove 1013 after being stored. Thus, the adjustment of the horizontal position, height, and angle of the cutter 106, as well as the tightening and loosening of the screws 107, can all be performed outside the cover 101. This achieves the effect of completely storing the blade, eliminating the need for hands to enter the danger zone, and fundamentally eliminating the risk of cuts during manual adjustment.

[0027] When changing the blade, the blade 106 is rotated to a vertical position before the blade is changed. At this time, the second cover 1010 has not yet closed the first cover 101, so there is space for changing the blade. When picking up the blade, it is unavoidable to touch the blade, but other operations can be performed outside the first cover 101. Although it cannot achieve absolutely zero contact with the blade, it is safer than existing technologies.

[0028] When it is necessary to add or remove cutters 106, it is required that the other side of the spline shaft 9 and guide rail 11 be unobstructed. Therefore, a second implementation method is provided. The main difference from the first implementation method is that a moving mechanism 13 is provided on the frame 1. The moving mechanism 13 is used to move the slide 12. The slide 12 is rotatably connected to the other end of the spline shaft 9 through a bearing, and the slide 12 is also detachably connected to the other end of the guide rail 11. In this way, both ends of the spline shaft 9 and the guide rail 11 are supported, resulting in strong stability. Furthermore, when it is necessary to add or remove cutters 106... At 06, first separate the bearing from the spline shaft 9, then separate the guide rail 11 from the slide 12. The slide 12 can then be moved by the moving mechanism 13 so that the other side of the spline shaft 9 and the guide rail 11 is unobstructed. This allows for the addition or removal of the cutter 106 as needed. The moving mechanism 13 includes a guide frame 131 mounted on the frame 1. A screw 132 is threaded onto the guide frame 131 and is rotatably connected to the slide 12. By rotating the screw 132, the slide 12 slides laterally on the guide frame 131.

[0029] A method for preparing and slitting multi-specification rapid films of flexible plastic packaging materials, using the second embodiment of the flexible plastic packaging material preparation and slitting system, includes the following steps: Step 1: When it is necessary to change the width specification of the film roll, control motor 2 8 to work, so that spline shaft 9 drives spline sleeve 102 to rotate on their respective cover 1 101, thereby causing connecting frame 103 to drive knife holder 105 to rotate through adjusting component 104, and drive cutter 106 to rotate and be stored in cover 1 101. At this time, transmission component 109 drives cover 2 1010 to rotate in the opposite direction and cover cover 1 101, further shielding cutter 106; Step 2: When the spline sleeve 102 rotates to store the cutter 106, the clamping component 108 simultaneously stops clamping against the guide rail 11, that is, all the covers 101 are simultaneously removed from the guide rail 11. At this time, the covers 101 can be moved safely one by one by the guide rod 1011 and the guide rail 11. Step 3: When each cover 101 moves to the required position, that is, each cutter 106 also moves to the required position, the spline shaft 9 is rotated and reset by the motor 8. At this time, the spline sleeve 102 drives the cutter holder 105 to rotate through the connecting bracket 103 and the adjusting component 104, thereby driving the cutter 106 to rotate away from the cover 101. At this time, the transmission component 109 drives the cover 1010 to rotate in the opposite direction and leave the cover 101. When the spline sleeve 102 rotates to store the cutter 106, the pressing component 108 presses against the guide rail 11 at the same time, that is, all covers 101 are fixed relative to the guide rail 11 at the same time, that is, the horizontal position of the cutter 106 is adjusted at the same time. When changing the blade, first put away the cutting blade 106, then put the screwdriver in through the through hole 1012 to loosen the screw 107, and then rotate the cutting blade 106 to a vertical position before changing the blade. At this time, the second cover 1010 has not yet closed the first cover 101, so there is space to change the blade. After changing the blade, rotate it back to put away, and then put the screwdriver in through the through hole 1012 to tighten the screw 107. When adjusting the height and angle of the cutter 106, the screws 1042 and 1047 for adjusting the height and angle can extend out of the cover 101 through the through slot 1013 after being stored, so that the adjustment can be made from the outside. Thus, the adjustment of the horizontal position, height, and angle of the cutter 106, as well as the tightening and loosening of the screw 107 when changing the blade, can all be done outside the cover 101. This achieves the effect of completely storing the blade, eliminating the need for the hand to enter the danger zone, and fundamentally eliminating the risk of cuts during manual adjustment.

[0030] In both steps one and three, the controller 6 controls the operation of motor 2 8.

[0031] Furthermore, all contents not described in detail in this specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used, and the power supply is also provided using existing technologies.

[0032] 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.

[0033] 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 multi-specification rapid film preparation and slitting system for flexible plastic packaging materials, characterized in that: The machine includes a frame (1), on which a take-up roller (2), a release roller (3), a motor (4) and a guide roller (5) are provided. Several motors (4) are respectively connected to the take-up roller (2) and the release roller (3). The frame (1) is equipped with a controller (6) and a mounting base (7). A motor (8) and a guide rail (11) are detachably connected to the mounting base (7). The output shaft of the motor (8) is connected to a spline shaft (9). Several cutting mechanisms (10) are slidably connected to the spline shaft (9). The cutting mechanism (10) includes a cover (101), on which a spline sleeve (102) is rotatably connected and slidably connected to a spline shaft (9). The spline sleeve (102) is provided with a connecting frame (103), a clamping component (108) and a transmission component (109). The connecting frame (103) is connected to a cutter holder (105) through an adjusting component (104). A cutter (106) is inserted into the cutter holder (105), and a screw (107) in contact with the cutter (106) is connected to the cutter holder (105). A cover (1010) is connected to the transmission component (109). A guide rod (1011) is provided on the cover (101) and slidably connected to the guide rail (11).

2. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 1, characterized in that: The adjustment assembly (104) includes a protruding rod (1041) disposed on a connecting frame (103), a screw rod (1042) threadedly connected to the protruding rod (1041), the top of the screw rod (1042) being rotatably connected to a support frame (1043), the support frame (1043) being vertically slidably connected to the connecting frame (103), a rotating shaft (1044) being rotatably connected to the support frame (1043), a gear ring (1045) and a tool holder (105) being disposed on the rotating shaft (1044), a toothed rod (1046) being meshed with the gear ring (1045) and slidably connected to the support frame (1043), and a screw rod (1047) being rotatably connected to the toothed rod (1046), the screw rod (1047) being threadedly connected to the support frame (1043).

3. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 1, characterized in that: The clamping assembly (108) includes a clamping rod (1081) that slides through the cover (101). The clamping rod (1081) is clamped against the guide rail (11). A slider (1082) is connected to the clamping rod (1081). A return spring (1083) connected to the cover (101) is provided on the slider (1082). A roller (1084) is provided on the slider (1082), and the roller (1084) is in contact with a cam (1085). The cam (1085) is provided on the spline sleeve (102). The slider (1082) is slidably connected to a slide bar (1086) connected to the cover (101).

4. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 1, characterized in that: The transmission assembly (109) includes two rotating shafts (1091), both of which are rotatably connected to the first cover (101) via bearings. Both rotating shafts (1091) are provided with gear rings, and a synchronous belt (1092) is connected between the two gear rings. One rotating shaft (1091) is connected to the second cover (1010), and the other rotating shaft (1091) and the spline sleeve (102) are both provided with gears (1093), and the two gears (1093) mesh with each other.

5. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 1, characterized in that: The cover one (101) has a through hole (1012) and the through hole (1012) is opposite to the screw (107) after it is stored. The cover two (1010) has a cutting groove aligned with the cutter (106) and the frame (1) has a scale rod (14) located below the cutter (106).

6. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 2, characterized in that: The cover (101) is provided with a through groove (1013), and the screws (1042) and (1047) after being stored extend out of the cover (101) through the through groove (1013).

7. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 1, characterized in that: The frame (1) is provided with a moving mechanism (13), which is used to move the slide (12). The slide (12) is rotatably connected to the other end of the spline shaft (9), and the slide (12) is also detachably connected to the other end of the guide rail (11).

8. The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to claim 7, characterized in that: The moving mechanism (13) includes a guide (131) mounted on the frame (1), and a screw (132) is threadedly connected to the guide (131), and the screw (132) is rotatably connected to the slide (12).

9. A method for a multi-specification rapid film preparation and slitting system for flexible plastic packaging materials, characterized in that: The multi-specification rapid film preparation and slitting system for flexible plastic packaging materials according to any one of claims 1-8, the method comprising the following steps: Step 1: When it is necessary to change the width specification of the film roll, control motor 2 (8) to work, so that the spline shaft (9) drives the spline sleeve (102) to rotate on their respective cover 1 (101), thereby causing the connecting frame (103) to drive the knife holder (105) to rotate through the adjustment component (104), and drive the cutter (106) to rotate and be stored in the cover 1 (101). At this time, the transmission component (109) drives the cover 2 (1010) to rotate in the opposite direction and cover the cover 1 (101), further shielding the cutter (106). Step 2: When the spline sleeve (102) rotates to store the cutter (106), the clamping component (108) will no longer clamp against the guide rail (11), that is, all the covers (101) will be removed from the guide rail (11). At this time, the covers (101) can be moved safely one by one by the guide rod (1011) and the guide rail (11). Step 3: When each cover (101) moves to the required position, that is, each cutter (106) also moves to the required position. At this time, the spline shaft (9) is rotated and reset by the motor (8). The spline sleeve (102) drives the cutter holder (105) to rotate through the connecting bracket (103) and the adjusting component (104), thereby driving the cutter (106) to rotate away from the cover (101). At this time, the transmission component (109) drives the cover (1010) to rotate in the opposite direction and leave the cover (101). When the spline sleeve (102) rotates to store the cutter (106), the pressing component (108) presses against the guide rail (11) at the same time, that is, all covers (101) are fixed relative to the guide rail (11) at the same time, that is, the horizontal position of the cutter (106) is adjusted at the same time.

10. The method for preparing and slitting multi-specification rapid films of flexible plastic packaging materials according to claim 9, characterized in that: In both steps one and three, the controller (6) controls the operation of motor two (8).

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