A self-adaptive adjusting device of a slitting machine cutter group for multi-thickness film and a use method thereof

Abstract

The application discloses a slitting machine knife group self-adaptive adjusting device capable of adapting to multiple thicknesses of film materials, which comprises a rack, a lower knife shaft assembly and an upper knife shaft assembly, the lower knife shaft assembly and the upper knife shaft assembly are installed in parallel on the inner wall of the rack and can rotate up and down, a plurality of independently adjustable lower circular knives and upper circular knives are respectively arranged on the lower knife shaft assembly and the upper knife shaft assembly, a material bracket is arranged on one side of the rack, a self-adaptive gap adjusting driving assembly and a knife alignment mechanism are arranged on the rack, and the self-adaptive gap adjusting driving assembly is connected with the lower knife shaft assembly and the upper knife shaft assembly. The use method comprises the following steps: equipment assembly and initialization, film material thickness online detection, initial self-adaptive gap adjustment of the knife group, starting of the slitting operation, cutting process closed-loop dynamic compensation, fault early warning and shutdown. The application belongs to the technical field of film material slitting processing equipment, and particularly relates to a slitting machine knife group self-adaptive adjusting device capable of adapting to multiple thicknesses of film materials and having working condition feedback and convenient debugging and a use method thereof.

Description

Technical Field

[0001] This invention belongs to the technical field of membrane slitting equipment, specifically referring to an adaptive adjustment device for slitting machine blade assembly that can adapt to membrane materials of various thicknesses and its usage method. Background Technology

[0002] Slitting machines are widely used in the processing of various wide-width film materials, such as thin films and composite films. Their working principle involves using paired circular blades to longitudinally slit a wide roll of film into multiple narrow strips of a predetermined width. Currently, the mainstream adjustment method for the blade assembly on slitting machines is manual, with the radial intersection depth of the blade edges and the horizontal clearance of the blade assembly manually adjusted by the operator after multiple trial cuts. A small number of electric slitting machines also use motor-driven blade adjustment, which adjusts the blade position by inputting preset parameters, reducing manual operation to some extent. These are widely used in the packaging and new energy electronic film processing industries.

[0003] The existing slitting machine blade assembly still has many shortcomings when dealing with the production of films with different thicknesses. First, when changing to different thicknesses of film material, it is necessary to stop the machine and repeatedly manually adjust the radial intersection depth of the upper and lower circular blade edges and the axial position of the blades. The changeover and adjustment cycle is long, and the subjective error caused by manual adjustment is large. Second, most traditional blades use snap ring springs for direct positioning. There are assembly gaps in the snap ring grooves, resulting in poor coaxiality of the blade rotation. This makes it impossible to achieve stepless axial positioning of the spindle. Under high-speed cutting conditions, the blades are prone to axial movement and wobble, affecting the cut quality. Third, conventional equipment lacks online film thickness detection and cutting displacement status feedback at the feed end. It relies solely on the operator's visual observation of the cut to judge the processing status. When there are thickness fluctuations in the roll material or slight wear of the blades, it is impossible to correct the blade parameters in time, which can easily lead to burrs, incomplete cuts, and wrinkling and damage of the film material, resulting in batches of defective products. In addition, the blade repositioning and calibration operation is cumbersome. Even electric blade adjustment models can mostly only execute preset parameters and cannot complete closed-loop dynamic adaptive compensation based on the actual feed film thickness and cutting displacement conditions. It is difficult to simultaneously support the slitting production of ultra-thin films, medium-thickness films, and thick composite films.

[0004] Therefore, there is an urgent need for an adaptive adjustment device for slitting machine blades that can adapt to multiple film thicknesses and its usage method. This device can automatically match the radial cross parameters of the cutting edge according to the actual thickness of the feed film material, and combine the cutting displacement signal to achieve dynamic fine adjustment of the blade assembly, reduce manual debugging intervention, be compatible with slitting operations of multiple film thicknesses, and improve the yield of slitting products. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adaptive adjustment device for slitting machine blade groups that can adapt to multiple film thicknesses, as well as its usage method. This solves the problems of cumbersome changeover and debugging of traditional slitting blade groups, poor adaptability to multiple film thicknesses, lack of closed-loop feedback of working conditions, and poor anti-vibration performance of blade positioning. It realizes automatic matching of the radial intersection parameters of the cutting edge based on the actual thickness of the film material, and dynamic fine-tuning of the blade group in combination with the cutting displacement signal, thereby improving slitting accuracy, reducing manual intervention, and expanding the applicability of the equipment to film materials of different thicknesses.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an adaptive adjustment device for slitting machine blade assembly that can adapt to film materials of multiple thicknesses, including a frame, a lower blade shaft assembly and an upper blade shaft assembly. The lower blade shaft assembly and the upper blade shaft assembly are mounted on the inner wall of the frame in parallel. Several independently adjustable lower circular blades and upper circular blades are respectively arrayed on the lower blade shaft assembly and the upper blade shaft assembly. A material support is provided on one side of the frame. The frame is equipped with an adaptive gap adjustment drive assembly and a tool setting mechanism. The adaptive gap adjustment drive assembly is connected to the lower tool shaft assembly and the upper tool shaft assembly. The adaptive gap adjustment drive assembly realizes the adaptive adjustment of the gap between the upper circular tool and the lower circular tool on the upper tool shaft assembly and the lower tool shaft assembly. The tool setting mechanism is located on one side of the lower tool shaft assembly. The adaptive gap adjustment drive assembly includes a vertical gap adjustment assembly and a horizontal gap adjustment assembly. The vertical gap adjustment assembly is installed on both sides of the frame and connected to both ends of the upper blade shaft assembly, respectively. It is used to adjust the depth of the radial intersection of the upper and lower circular blade edges to change the blade cutting depth and adapt to the shearing requirements of different thickness film materials. The horizontal gap adjustment assembly is installed on the side wall of the frame and connected to the blade shaft of the upper blade shaft assembly. It is used to fine-tune the horizontal distance between the upper and lower circular blades to complete the adjustment of the slitting width. The adaptive gap adjustment drive assembly also includes a thickness detection assembly, a monitoring assembly, and a closed-loop control assembly. The thickness detection assembly is installed on the side of the frame near the material tray and includes a mounting bracket and a laser thickness sensor. The laser thickness sensor is fixed to the feed end on the inner wall of the frame through the mounting bracket and is used to complete non-contact thickness acquisition before the film material enters the cutting station. The monitoring component includes two sets of symmetrically arranged displacement sensors, which are respectively located at both ends of the upper tool shaft assembly. They are used to collect data on the displacement of the tool group under cutting conditions and to provide feedback on the actual cutting conditions. The closed-loop control component is electrically connected to the thickness detection component, monitoring component, vertical gap adjustment component, and horizontal gap adjustment component, respectively. It has a built-in multi-thickness membrane parameter database and adaptive control algorithm, which is used to automatically match the cutting parameters according to the real-time thickness of the membrane material, and dynamically fine-tune the blade group in combination with displacement data to achieve closed-loop adaptive adjustment.

[0007] Furthermore, the upper cutter shaft assembly and the lower cutter shaft assembly each include an upper spindle and a lower spindle rotatably connected to the frame. One end of the lower spindle is connected to a drive structure located in the frame to provide rotational power for film material slitting. One end of both the upper spindle and the lower spindle is provided with a transmission gear, and the two transmission gears mesh to realize relative rotation of the upper spindle and the lower spindle.

[0008] Furthermore, the upper spindle has several detachable tool holders arranged along the axial direction, and each set of upper circular cutters is detachably connected to each detachable tool holder and fixed to the detachable tool holder by locking and positioning components; The detachable tool holder adopts an expansion sleeve, and the locking and positioning component adopts a composite locking structure of spring + snap ring. The expansion sleeve realizes the radial clamping and stepless positioning of the tool holder and the spindle without gap, ensuring high rotational accuracy; the spring provides a constant axial preload, which can adaptively compensate for the cutting impact of film materials of different thicknesses and the micro gaps in equipment operation, and improve vibration resistance and stability; the end snap ring realizes the ultimate axial anti-disengagement limit.

[0009] Furthermore, the vertical gap adjustment assembly includes a rotating rod rotatably connected to the inner wall of the frame, and both ends of the rotating rod are connected to the frame through sliding bearings, so that the rotating rod can rotate while moving slightly along the axial direction. Both ends of the rotating rod are respectively fixed with swing arms perpendicular to its axial direction. The upper main shaft is rotatably connected to the swing arms and parallel to the rotating rod. The swing arms drive the upper main shaft to swing in an arc, thereby changing the radial intersection depth of the upper and lower circular cutting edges.

[0010] Furthermore, the end of the swing arm away from the rotating rod is fixed to a mounting rod by bolts, and the displacement sensor is fixed to the mounting rod to ensure that the displacement sensor is close to the displacement source and the acquired signal is real and reliable.

[0011] Furthermore, the horizontal clearance adjustment assembly includes a connecting shaft sleeved on one end of the rotating rod. The connecting shaft is rotatably connected to the side wall of the frame, and the connecting shaft and the rotating rod are keyed together. At the same time, the connecting shaft and the rotating rod can slide relative to each other. The end of the connecting shaft away from the rotating rod is coaxially fixed to a sliding shaft by bolts. A worm gear is sleeved between the sliding shaft and the connecting shaft, and the worm gear, the sliding shaft, and the connecting shaft are connected as a whole by bolts. A worm is vertically provided on one side of the worm gear, and the worm meshes with the worm gear. The smooth transmission of motion is achieved by utilizing the transmission characteristics of the worm gear.

[0012] Furthermore, the upper and lower ends of the worm are fixed to the frame by a fixed seat, and the worm is rotatably connected to the fixed seat. The upper end of the worm is connected to the first set of servo motors located in the frame, and the first set of servo motors provides the clearance adjustment power.

[0013] Furthermore, a drive shaft is coaxially threaded to one end of the rotating rod near the shifting shaft. The drive shaft passes through the shifting shaft, the worm gear, and the connecting shaft. The end of the drive shaft away from the rotating rod is connected to a micro stepper motor located inside the frame. The micro stepper motor provides power input for fine-tuning the axial position of the tool holder.

[0014] Furthermore, the tool setting mechanism includes a lead screw rotatably connected to the frame and a guide shaft parallel to the lead screw. One end of the lead screw is connected to a second set of servo motors located inside the frame, and the other end of the lead screw is rotatably connected to the frame. A slider is threaded onto the lead screw and slidably connected to the guide shaft. A positioning rod is rotatably connected to the slider, and a return spring is provided between the slider and the positioning rod. The return spring is used to achieve buffering and retraction when the positioning rod contacts the tool assembly.

[0015] In another aspect, the present invention also provides a method of using the above-described device, comprising the following steps: S1. Equipment Assembly and Initialization: Place the film material to be processed on the material tray. According to the target slitting width, adjust the position of each lower circular blade on its corresponding lower main shaft through the blade setting mechanism. Then, lower the upper circular blade through the vertical gap adjustment component and adjust it accordingly to make the upper and lower circular blades correspond one-to-one. Use the expansion sleeve, spring and retaining ring to lock and fix the detachable blade holder and the upper circular blade, leaving a 2 mm gap between the upper and lower circular blades. Then, further lower the upper main shaft, and drive the drive shaft and the rotating rod to rotate relative to each other through the micro stepper motor, so that each detachable blade holder on the upper main shaft moves synchronously along the axis of the upper main shaft, so that the blades of the upper and lower circular blades are in contact, completing the blade holding process. Start the closed-loop control component to complete the system initialization and call the built-in multi-thickness film material parameter database. S2. Online detection of membrane thickness: During the process of feeding the membrane material to the cutting station, the laser thickness sensor at the feeding end collects the actual thickness data of the membrane material in real time and transmits the thickness signal to the closed-loop control component. S3. Initial adaptive clearance adjustment of the blade assembly: The closed-loop control component retrieves the corresponding standard cutting edge radial cross parameters based on the measured film thickness. The first set of servo motors drives the worm gear to rotate, the worm gear drives the worm wheel to drive the rotating rod to rotate, the rotating rod drives the two swing arms to swing, the swing arms drive the upper spindle to swing in an arc, and adjusts the radial cross depth of the blade edges between the upper and lower circular blades to complete the initial clearance matching of the blade assembly. S4. Start the slitting operation: Start the internal drive structure of the frame, and drive the upper and lower main shafts to rotate synchronously in opposite directions through the meshing of the transmission gears. The upper and lower circular knives work together to slit the feed film material. S5. Closed-loop dynamic compensation during the cutting process: During the slitting operation, the displacement sensor of the monitoring component continuously collects the cutting displacement data of the blade assembly and transmits it to the closed-loop control component; the laser thickness sensor collects the actual thickness data of the film material in real time and transmits the thickness signal to the closed-loop control component; the closed-loop control component compares the displacement data and real-time film thickness data with the preset threshold. When the film thickness fluctuates or the displacement signal exceeds the allowable range, the closed-loop control component outputs an adjustment command to drive the vertical and horizontal gap adjustment components to dynamically fine-tune the radial intersection depth and relative position of the upper and lower circular blades, thereby achieving adaptive compensation for the cutting conditions. S6. Fault Warning and Shutdown: When the closed-loop control component detects that the film thickness and displacement data continuously exceed the safety threshold, an alarm is triggered. If necessary, the drive structure is stopped, and the working conditions of the cutting tools and film are checked. After all the slitting and processing is completed, each drive motor is turned off in sequence, the tool holder is released, and the equipment is shut down.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: 1. This invention is equipped with a laser thickness sensor at the feed end, combined with a multi-thickness film material parameter library built into the closed-loop control component. It can automatically match the radial intersection depth of the blade edge according to the actual measured thickness of the film material. The upper blade shaft swings and adjusts the clearance through the swing arm swing mechanism, so as to automatically adapt the initial parameters of different thickness film materials, reduce manual trial cutting and debugging steps, and shorten the product changeover time. 2. A displacement sensor is set up to collect the displacement signal under the cutting condition, forming a dual closed-loop feedback with the film thickness detection. When the thickness of the coil material fluctuates or the cutting state changes due to tool wear, the system can dynamically fine-tune the radial intersection depth and position of the cutting edge of the tool group, reduce defects such as burrs, incomplete cuts, and wrinkles, and improve the product yield. 3. The blade adopts a spring + snap ring composite locking structure; the expansion sleeve is radially clamped to the upper spindle without gap, supporting arbitrary stepless positioning of the spindle axis and high rotation accuracy; the spring provides axial preload to absorb cutting impact, and the snap ring acts as a safety anti-disengagement limit, improving the blade movement and wobble problem under high-speed cutting; 4. Equipped with an independent tool setting mechanism, the tool group can be automatically assisted in completing the tool setting verification after the tool group is arranged, reducing the difficulty of manual tool setting operation; 5. The overall equipment is highly automated and can be adapted to both high-precision cutting conditions with small radial cross-section of ultra-thin films and large cutting and impact conditions of thick films. One machine is compatible with the slitting and production of multiple specifications of film materials, and the equipment has strong versatility. Attached Figure Description

[0017] Figure 1 This is a reference diagram of the overall use of an adaptive adjustment device for the slitting machine blade assembly that can adapt to film materials of various thicknesses, as proposed in this invention; Figure 2This is a schematic diagram of the structure of an adaptive adjustment device for the slitting machine blade assembly that can adapt to film materials of various thicknesses, as proposed in this invention. Figure 3 This is a schematic diagram of the internal structure of the adaptive adjustment device for the slitting machine blade assembly that can adapt to multiple film thicknesses, as proposed in this invention, after disassembly. Figure 4 for Figure 2 A magnified view of part A in the middle; Figure 5 This is a first-view structural diagram of the lower and upper cutter shaft assemblies of a slitting machine cutter group adaptive adjustment device that can adapt to multiple film thicknesses, as proposed in this invention. Figure 6 This is a second-view structural diagram of the lower and upper cutter shaft assemblies of a slitting machine cutter group adaptive adjustment device that can adapt to multiple film thicknesses, as proposed in this invention. Figure 7 This is a partial structural schematic diagram of the blade-setting mechanism component of a slitting machine blade group adaptive adjustment device that can adapt to multiple film thicknesses, as proposed in this invention. Figure 8 This is a partial cross-sectional view of the horizontal gap adjustment component of a slitting machine blade assembly adaptive adjustment device that can adapt to multiple film thicknesses, as proposed in this invention.

[0018] The components include: 1. Frame; 2. Lower cutter shaft assembly; 3. Upper cutter shaft assembly; 4. Material support; 5. Adaptive clearance adjustment drive assembly; 6. Thickness detection assembly; 7. Monitoring assembly; 8. Upper circular cutter; 9. Lower circular cutter; 10. Vertical clearance adjustment assembly; 11. Horizontal clearance adjustment assembly; 12. Mounting bracket; 13. Laser thickness sensor; 14. Displacement sensor; 15. Tool setting mechanism; 16. Upper spindle; 17. Lower spindle; 18. Transmission gear; 19. Detachable tool holder; 20. Locking and positioning component; 21. Rotating rod; 22. Swing rod; 23. Mounting rod; 24. Connecting shaft; 25. Moving shaft; 26. Fixed seat; 27. Worm gear; 28. Worm wheel; 29. ​​Drive shaft; 30. Lead screw; 31. Guide shaft; 32. Slider; 33. Positioning rod; 34. Return spring.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-8 As shown, this invention proposes an adaptive adjustment device for the slitting machine blade assembly, adaptable to various film thicknesses. The frame 1 serves as the main support structure. The lower blade shaft assembly 2 and the upper blade shaft assembly 3 are mounted vertically and horizontally on the inner wall of the frame 1. The lower blade shaft assembly 2 is equipped with several lower circular blades 9, and the upper blade shaft assembly 3 is equipped with several upper circular blades 8. A material support 4 is provided on the side of the frame 1 to support the film material to be processed. An adaptive gap adjustment drive assembly 5 and a blade setting mechanism 15 are arranged on the frame 1, with the blade setting mechanism 15 located on one side of the lower blade shaft assembly 2. The adaptive gap adjustment drive assembly 5 is divided into a vertical gap adjustment assembly 10 and a horizontal gap adjustment assembly 11. The vertical gap adjustment assembly 10 is located on both sides of the frame 1 and connected to both ends of the upper blade shaft assembly 3, used to adjust the radial intersection depth of the cutting edges of the upper circular blades 8 and lower circular blades 9. The horizontal gap adjustment assembly 11 is installed on the side wall of the frame 1 and connected to the blade shaft of the upper blade shaft assembly 3, used to adjust the horizontal relative position of the upper circular blades 8 and lower circular blades 9. The adaptive gap adjustment drive component 5 also includes a thickness detection component 6, a monitoring component 7, and a closed-loop control component (the intelligent closed-loop control component has a built-in parameter storage module, a data comparison module, a control execution module, and an alarm module. The parameter storage module pre-stores standard cutting gaps, blade radial cross-sections, and allowable displacement threshold parameters for different materials and thicknesses of film materials; the data comparison module receives film material thickness data and displacement data in real time and compares them with the standard parameters; the control execution module drives the adaptive gap adjustment drive component to complete parameter adaptive correction based on the comparison results; the alarm module triggers an audible and visual alarm when the detected data exceeds the threshold to achieve fault warning). The thickness detection component 6 consists of a mounting bracket 12 and a laser thickness sensor 13. The laser thickness sensor 13 is fixed at the feed end of the frame 1 by means of the mounting bracket 12. When the film material is conveyed to the cutting station through the material carrier 4, the laser thickness sensor 13 collects the film material thickness signal in real time and transmits it to the closed-loop control component. The monitoring component 7 includes two sets of displacement sensors 14, which are respectively arranged at both ends of the upper cutter shaft assembly 3. They collect the displacement data of the cutter group in real time during the cutting process and transmit it to the closed-loop control component. The closed-loop control component receives signals from the thickness detection component 6 and the monitoring component 7, and simultaneously controls the vertical gap adjustment component 10 and the horizontal gap adjustment component 11 to complete the closed-loop adaptive adjustment of the cutter group.

[0022] The upper cutter shaft assembly 3 includes an upper spindle 16, and the lower cutter shaft assembly 2 includes a lower spindle 17. The upper spindle 16 and the lower spindle 17 are rotatably mounted on the frame 1. The internal drive structure of the frame 1 drives the lower spindle 17 to rotate. The ends of the upper spindle 16 and the lower spindle 17 are respectively equipped with transmission gears 18. The two sets of transmission gears 18 mesh with each other to realize that the upper spindle 16 and the lower spindle 17 rotate in opposite directions, thereby driving the upper circular blade 8 and the lower circular blade 9 to cut and slit the film material.

[0023] Multiple sets of detachable tool holders 19 are arranged in an axial array on the upper spindle 16. The upper circular cutter 8 is installed on the detachable tool holder 19, and the locking and positioning component 20 completes the locking and fixing of the upper circular cutter 8. The detachable tool holder 19 adopts a shrinking sleeve structure to achieve radial clamping with the upper spindle 16 without gap, and can be positioned at any position in the axial direction of the upper spindle 16. The locking and positioning component 20 is a composite locking structure composed of a spring and a snap ring. The spring outputs axial preload to absorb cutting impact, and the snap ring provides axial anti-disengagement protection to ensure the stable operation of the tool holder and the cutter under high-speed cutting conditions.

[0024] The vertical clearance adjustment assembly 10 is equipped with a rotating rod 21. Both ends of the rotating rod 21 are mounted on the inner wall of the frame 1 via sliding bearings. The rotating rod 21 can rotate and also move slightly axially. Two swing arms 22 are fixed to both ends of the rotating rod 21, perpendicular to each other. The upper spindle 16 is rotatably mounted on the swing arms 22 and remains parallel to the rotating rod 21. The end of the swing arm 22 furthest from the rotating rod 21 is bolted to a mounting rod 23. A displacement sensor 14 is fixedly mounted on the mounting rod 23, moving synchronously with the swing arm 22 to continuously collect the tool group displacement signal (the change in distance between the tool group and the side wall of the frame 1).

[0025] The horizontal adjustment assembly 11 is equipped with a connecting shaft 24, which is sleeved on one end of the rotating rod 21 and rotatably connected to the frame 1. The connecting shaft 24 and the rotating rod 21 are connected by a key, and the connecting shaft 24 can slide axially relative to the rotating rod 21. The end of the connecting shaft 24 away from the rotating rod 21 is bolted to the shifting shaft 25. A worm gear 28 is sleeved in the middle of the shifting shaft 25 and the connecting shaft 24. The worm gear 28 is bolted to the shifting shaft 25 and the connecting shaft 24 to form a whole. The worm gear 28 meshes with the vertically arranged worm 27. The upper and lower ends of the worm gear 27 are fixed to the frame 1 by the fixed base 26. The worm gear 27 is rotatably assembled inside the fixed base 26. The upper end of the worm gear 27 is connected to the first set of servo motors inside the frame 1. The first set of servo motors drives the worm gear 27 to rotate, which drives the shifting shaft 25, connecting shaft 24, and rotating rod 21 to rotate as a whole through the worm wheel 28, thereby driving the swing arm 22 to swing, realizing the arc swing of the upper spindle 16 and changing the radial intersection depth of the upper and lower circular cutting edges.

[0026] One end of the rotating rod 21 near the shift shaft 25 is threaded to the drive shaft 29. The drive shaft 29 passes through the shift shaft 25, the worm gear 28, and the connecting shaft 24. The end of the drive shaft 29 is connected to a micro stepper motor (the friction between the rotating rod 21 and the drive shaft 29 is greater than the positioning torque of the micro stepper motor connected to the drive shaft 29, to prevent the rotating rod 21 from separating from the drive shaft 29 when it rotates). The micro stepper motor drives the drive shaft 29 to rotate, and the threaded transmission causes the rotating rod 21 to produce a slight axial displacement, which in turn drives the connecting shaft 24 and the shift shaft 25 to move axially, thereby adjusting the axial position of each detachable tool holder 19 and changing the cutting width.

[0027] The tool setting mechanism 15 is equipped with a lead screw 30 and a guide shaft 31. The lead screw 30 and guide shaft 31 are rotatably mounted on the frame 1. One end of the lead screw 30 is connected to a second set of servo motors (with encoders and electrically connected to the display screen at the front of the frame 1), and the other end of the lead screw 30 is rotatably connected to the frame 1. A slider 32 is threaded onto the lead screw 30, and the slider 32 is simultaneously slidably mounted on the guide shaft 31. A positioning rod 33 is rotatably mounted on the slider 32, and a return spring 34 is set between the slider 32 and the positioning rod 33. The second set of servo motors drives the lead screw 30 to rotate, causing the slider 32 to move along the guide shaft 31. The positioning rod 33 moves with the slider 32. After moving, the positioning rod 33 is rotated to the side of the downward spindle 17, and the position of the lower circular cutter 9 is adjusted to make it fit with the positioning rod 33, completing the auxiliary tool setting verification of the tool set. The return spring 34 can reset after the positioning rod 33 is released, waiting to move to the next position.

[0028] This embodiment also discloses the method of using the above-mentioned device, and the workflow is as follows: S1. Equipment Assembly and Initialization: Place the film material to be processed on the material tray 4. According to the target cutting width, adjust the position of each lower circular blade 9 on its corresponding lower main shaft 17 through the blade setting mechanism 15. Then, lower the upper circular blade 8 through the vertical gap adjustment component 10 and adjust the upper circular blade 8 accordingly so that the upper circular blade 8 and the lower circular blade 9 correspond one-to-one. Use the expansion sleeve, spring and retaining ring to lock and fix the detachable blade holder 19 and the upper circular blade 8, leaving a 2 mm gap between the blade of the upper circular blade 8 and the lower circular blade 9. Then, further lower the upper main shaft 16. Drive the drive shaft 29 and the rotating rod 21 to rotate relative to each other through the micro stepper motor, so that each detachable blade holder 19 on the upper main shaft 16 moves synchronously along the axial direction of the upper main shaft 16, so that the blade of the upper circular blade 8 and the blade of the lower circular blade 9 are in contact, completing the blade holding process. Start the closed loop control component to complete the system initialization and call the built-in multi-thickness film material parameter database. S2. Online detection of membrane thickness: During the process of feeding the membrane material to the cutting station, the laser thickness sensor 13 at the feeding end collects the actual thickness data of the membrane material in real time and transmits the thickness signal to the closed-loop control component. S3. Initial adaptive clearance adjustment of the blade assembly: The closed-loop control component retrieves the corresponding standard cutting edge radial intersection parameters based on the measured film thickness. The first set of servo motors drives the worm gear 27 to rotate. The worm gear 27 drives the worm wheel 28 to drive the rotating rod 21 to rotate. The rotating rod 21 drives the two swing rods 22 to swing. The swing rods 22 drive the upper spindle 16 to swing in an arc, adjusting the radial intersection depth of the blade edges between the upper circular knife 8 and the lower circular knife 9, thus completing the initial clearance matching of the blade assembly. S4. Start the slitting operation: Start the internal drive structure of the frame 1, and drive the upper spindle 16 and the lower spindle 17 to rotate synchronously in opposite directions through the meshing of the transmission gear 18. The upper circular knife 8 and the lower circular knife 9 cooperate to slit the feed film material. S5. Closed-loop dynamic compensation during the cutting process: During the slitting operation, the displacement sensor 14 of the monitoring component 7 continuously collects the cutting displacement data of the blade group and transmits it to the closed-loop control component; the laser thickness sensor 13 collects the actual thickness data of the film material in real time and transmits the thickness signal to the closed-loop control component; the closed-loop control component compares the displacement data, real-time film thickness data and preset thresholds. When the film thickness fluctuates or the displacement signal exceeds the allowable range, the closed-loop control component outputs an adjustment command to drive the vertical gap adjustment component 10 and the horizontal gap adjustment component 11 to dynamically fine-tune the radial intersection depth and relative position of the cutting edges of the upper circular blade 8 and the lower circular blade 9, so as to realize adaptive compensation for the cutting conditions; S6. Fault Warning and Shutdown: When the closed-loop control component detects that the film thickness and displacement data continuously exceed the safety threshold, an alarm is triggered. If necessary, the drive structure is stopped, and the working conditions of the cutting tools and film are checked. After all the slitting and processing is completed, each drive motor is turned off in sequence, the tool holder is released, and the equipment is shut down.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A slitting machine blade assembly adaptive adjustment device adaptable to multiple thickness film materials, comprising a frame (1), a lower blade shaft assembly (2), and an upper blade shaft assembly (3), wherein the lower blade shaft assembly (2) and the upper blade shaft assembly (3) are mounted vertically and horizontally on the inner wall of the frame (1), and a plurality of independently adjustable lower circular blades (9) and upper circular blades (8) are respectively arrayed on the lower blade shaft assembly (2) and the upper blade shaft assembly (3), and a material support bracket (4) is provided on one side of the frame (1), characterized in that: The frame (1) is provided with an adaptive gap adjustment drive assembly (5) and a tool setting mechanism (15). The adaptive gap adjustment drive assembly (5) is connected to the lower tool shaft assembly (2) and the upper tool shaft assembly (3). The adaptive gap adjustment drive assembly (5) realizes the adaptive adjustment of the gap between the upper circular tool (8) and the lower circular tool (9) on the upper tool shaft assembly (3) and the lower tool shaft assembly (2). The tool setting mechanism (15) is located on one side of the lower tool shaft assembly (2). The adaptive gap adjustment drive assembly (5) includes a vertical gap adjustment assembly (10) and a horizontal gap adjustment assembly (11). The vertical gap adjustment assembly (10) is installed on both sides of the frame (1) and connected to both ends of the upper cutter shaft assembly (3) respectively. It is used to adjust the depth of the radial intersection of the cutting edges of the upper circular cutter (8) and the lower circular cutter (9). The horizontal gap adjustment assembly (11) is installed on the side wall of the frame (1) and connected to the cutter shaft of the upper cutter shaft assembly (3). It is used to finely adjust the horizontal distance between the upper circular cutter (8) and the lower circular cutter (9). The adaptive gap adjustment drive assembly (5) also includes a thickness detection assembly (6), a monitoring assembly (7) and a closed-loop control assembly. The thickness detection assembly (6) is installed on the side of the frame (1) near the material support (4) and includes a mounting bracket (12) and a laser thickness sensor (13). The laser thickness sensor (13) is fixed to the feed end on the inner wall of the frame (1) by the mounting bracket (12). The monitoring component (7) includes two sets of symmetrically arranged displacement sensors (14). The two displacement sensors (14) are respectively located at both ends of the upper cutter shaft assembly (3) and are used to collect data on the displacement of the cutter group under the cutting condition. The closed-loop control component is electrically connected to the thickness detection component (6), the monitoring component (7), the vertical gap adjustment component (10), and the horizontal gap adjustment component (11), respectively. It has a built-in multi-thickness membrane parameter database and an adaptive control algorithm, which is used to automatically match the cutting parameters according to the real-time thickness of the membrane and dynamically fine-tune the blade group in combination with displacement data to achieve closed-loop adaptive adjustment.

2. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses as described in claim 1, characterized in that: The upper cutter shaft assembly (3) and the lower cutter shaft assembly (2) respectively include an upper spindle (16) and a lower spindle (17) rotatably connected to the frame (1). One end of the lower spindle (17) is connected to a drive structure located in the frame (1). One end of the upper spindle (16) and the lower spindle (17) are provided with a transmission gear (18), and the two transmission gears (18) mesh to realize relative rotation of the upper spindle (16) and the lower spindle (17).

3. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 2, characterized in that: The upper spindle (16) has several detachable tool holders (19) arranged along the axial direction. Each set of upper circular cutters (8) is detachably connected to each detachable tool holder (19) and fixed to the detachable tool holder (19) by locking and positioning parts (20).

4. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses as described in claim 3, characterized in that: The vertical adjustment assembly (10) includes a rotating rod (21) rotatably connected to the inner wall of the frame (1), and the two ends of the rotating rod (21) are connected to the frame (1) through sliding bearings, so that the rotating rod (21) can move along the axial direction while rotating. The two ends of the rotating rod (21) are respectively fixed with swing rods (22) perpendicular to its axial direction. The upper main shaft (16) is rotatably connected to the swing rods (22) and parallel to the rotating rod (21).

5. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 4, characterized in that: The end of the swing arm (22) away from the rotating rod (21) is fixed to the mounting rod (23) by bolts, and the displacement sensor (14) is fixed to the mounting rod (23).

6. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 5, characterized in that: The horizontal adjustment assembly (11) includes a connecting shaft (24) sleeved on one end of the rotating rod (21). The connecting shaft (24) is rotatably connected to the side wall of the frame (1), and the connecting shaft (24) and the rotating rod (21) are keyed together. At the same time, the connecting shaft (24) and the rotating rod (21) can slide relative to each other. The end of the connecting shaft (24) away from the rotating rod (21) is coaxially fixed with a sliding shaft (25) by bolts. A worm gear (28) is sleeved in the middle of the sliding shaft (25) and the connecting shaft (24), and the worm gear (28) is connected to the sliding shaft (25) and the connecting shaft (24) by bolts to form a whole. A worm (27) is vertically provided on one side of the worm gear (28), and the worm (27) meshes with the worm gear (28).

7. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 6, characterized in that: The upper and lower ends of the worm (27) are fixed to the frame (1) by the fixed seat (26), and the worm (27) is rotatably connected to the fixed seat (26). The upper end of the worm (27) is connected to the first set of servo motors located in the frame (1).

8. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 7, characterized in that: The rotating rod (21) is coaxially threaded with a drive shaft (29) at one end near the shift shaft (25). The drive shaft (29) passes through the shift shaft (25), the worm gear (28), and the connecting shaft (24). The end of the drive shaft (29) away from the rotating rod (21) is connected to a micro stepper motor located in the frame (1).

9. The adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to claim 1, characterized in that: The tool setting mechanism (15) includes a lead screw (30) rotatably connected to the frame (1) and a guide shaft (31) parallel to the lead screw (30). One end of the lead screw (30) is connected to a second set of servo motors located inside the frame (1), and the other end of the lead screw (30) is rotatably connected to the frame (1). A slider (32) is threadedly connected to the lead screw (30), and the slider (32) is slidably connected to the guide shaft (31). A positioning rod (33) is rotatably connected to the slider (32), and a return spring (34) is provided between the slider (32) and the positioning rod (33).

10. A method of using the adaptive adjustment device for the slitting machine blade assembly adaptable to multiple film thicknesses according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Equipment Assembly and Initialization: Place the film material to be processed on the material tray (4). According to the target cutting width, adjust the position of each lower circular blade (9) on its corresponding lower spindle (17) through the blade setting mechanism (15). Then, lower the upper circular blade (8) through the vertical gap adjustment component (10) and adjust the upper circular blade (8) accordingly so that the upper circular blade (8) and the lower circular blade (9) correspond one-to-one. Use the expansion sleeve, spring and snap ring to lock and fix the detachable blade holder (19) and the upper circular blade (8). Leave a 2 mm gap between the upper circular knife (8) blade and the lower circular knife (9); then further lower the upper spindle (16), and drive the drive shaft (29) and the rotating rod (21) to rotate relative to each other through the micro stepper motor, so that each detachable knife holder (19) on the upper spindle (16) moves synchronously along the axial direction of the upper spindle (16), so that the blade of the upper circular knife (8) and the blade of the lower circular knife (9) fit together, and the knife-holding process is completed; start the closed-loop control component to complete the system initialization and call the built-in multi-thickness film parameter database; S2. Online detection of membrane thickness: During the process of feeding the membrane to the cutting station, the laser thickness sensor (13) at the feeding end collects the actual thickness data of the membrane in real time and transmits the thickness signal to the closed-loop control component. S3, Initial adaptive clearance adjustment of the blade assembly: The closed-loop control component retrieves the corresponding standard cutting edge radial cross parameters based on the measured film thickness. The first set of servo motors drives the worm (27) to rotate. The worm (27) drives the worm wheel (28) to drive the rotating rod (21) to rotate. The rotating rod (21) drives the two side swing rods (22) to swing. The swing rods (22) drive the upper spindle (16) to swing in an arc, adjusting the radial cross depth of the blade edges between the upper circular knife (8) and the lower circular knife (9) to complete the initial clearance matching of the blade assembly; S4. Start the slitting operation: Start the internal drive structure of the frame (1), and drive the upper spindle (16) and lower spindle (17) to rotate synchronously in opposite directions through the meshing of the transmission gear (18). The upper circular knife (8) and the lower circular knife (9) cooperate to slit the feed film material. S5. Closed-loop dynamic compensation during the cutting process: During the slitting operation, the displacement sensor (14) of the monitoring component (7) continuously collects the displacement data of the cutting group and transmits it to the closed-loop control component; the laser thickness sensor (13) collects the actual thickness data of the film material in real time and transmits the thickness signal to the closed-loop control component; the closed-loop control component compares the displacement data, real-time film thickness data with the preset threshold. When the film thickness fluctuates or the displacement signal exceeds the allowable range, the closed-loop control component outputs the adjustment command to drive the vertical gap adjustment component (10) and the horizontal gap adjustment component (11) to dynamically fine-tune the radial intersection depth and relative position of the cutting edges of the upper circular knife (8) and the lower circular knife (9) to achieve adaptive compensation of the cutting conditions; S6. Fault warning and shutdown: When the closed-loop control component detects that the film thickness and displacement data continuously exceed the safety threshold, it triggers an alarm and, if necessary, stops the operation of the drive structure to check the working conditions of the tool and film material. After all the slitting and processing is completed, turn off each drive motor in sequence, release the tool holder lock, and stop the equipment.

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