Punching and slitting apparatus and control method

Abstract

The present application relates to the technical field of intelligent manufacturing equipment, and discloses a punching and slitting equipment and a control method, which comprise a unwinding mechanism, a punching mechanism, a slitting and winding mechanism, a visual detection mechanism, a deviation rectifying mechanism and a control mechanism, the deviation rectifying mechanism is arranged on the moving path of the film strip and is used for correcting the moving path of the film strip, and the control mechanism comprises a first controller, the first controller is electrically connected with the visual detection mechanism and the deviation rectifying mechanism respectively, and is configured to control the deviation rectifying mechanism to adjust the moving path of the film strip according to the position of the edge of the film strip detected by the visual detection mechanism. The present application can effectively inhibit the change of the position and size of the through hole caused by the deviation of the film, significantly improve the precision consistency of the through hole arrangement, and reduce the defective product rate.

Description

Technical Field

[0001] This invention relates to the technical field of intelligent manufacturing equipment, and in particular to a punching and slitting device and control method. Background Technology

[0002] In the field of deep processing of plastic films, certain specific applications (such as medical packaging, electronic component carrier tapes, and filter membrane assemblies) require the use of plastic film products with multiple through holes. These films place high demands on the relative dimensions between the through holes and the positioning accuracy between the through holes and the film edges; any minute deviation can affect the fit quality of subsequent processes or product performance.

[0003] Currently, during the punching process, the film is typically moved continuously by a conveying mechanism, and the punching unit punches the film surface according to a preset pitch. However, plastic film itself is lightweight, flexible, and easily stretched and deformed, making it highly susceptible to fluctuations in traction force and roller parallelism errors during the conveying process. This can lead to lateral deviation or uneven longitudinal tension. When the film deviates at the punching station, the position of the subsequently punched through holes relative to the edge of the film width will gradually shift, resulting in the inability to meet high-precision requirements and a significant increase in product defect rate. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a punching and slitting device that can effectively suppress the dimensional changes in the position of through holes and edges caused by film misalignment, significantly improve the accuracy and consistency of through hole arrangement, and reduce the defect rate.

[0005] The present invention also proposes a control method for a punching and slitting device as described above.

[0006] A punching and slitting apparatus according to a first aspect of the present invention includes: The unwinding mechanism is used to unwind the film tape and maintain its tension. The punching mechanism is used to punch holes in the tensioned membrane tape. The slitting and winding mechanism is used to slit and wind up the punched film strip; A visual inspection mechanism is installed at the discharge point of the punching mechanism to detect the position of the edge of the film strip, the distance between the edge of the film strip and the center of the through hole, and the size between two adjacent through holes in the length direction of the film strip. The correction mechanism is located on the moving path of the membrane belt and is used to correct the moving path of the membrane belt. The control mechanism includes a first controller, which is electrically connected to both the vision detection mechanism and the correction mechanism, and is configured to: control the correction mechanism to adjust the movement path of the film strip based on the position of the edge of the film strip detected by the vision detection mechanism.

[0007] A punching and slitting device according to an embodiment of the present invention has at least the following beneficial effects: 1. This invention incorporates a visual inspection mechanism. The punching mechanism punches the film strip fed by the unwinding mechanism. The visual inspection mechanism is located at the discharge point of the punching mechanism, enabling it to detect the position of the film strip edge, the distance between the edge of the film strip and the center of the through hole, and the size between two adjacent through holes along the length of the film strip. This allows for the early measurement of whether the position and size of the through holes in the punched film strip are up to standard, early detection of punching defects, and monitoring of the position and size of the through holes, thereby reducing the occurrence of defective products.

[0008] 2. This invention incorporates a correction mechanism positioned along the movement path of the membrane belt. This mechanism corrects the movement path of the membrane belt. When processing membrane belts of different sizes, the movement path of the membrane belt needs to be adjusted. The correction mechanism can quickly change the movement path of the membrane belt, ensuring that it falls within a preset range. This guarantees the correct position and size of the through holes punched by the punching mechanism, greatly reducing the difficulty of adjustment and improving the efficiency of adjustment.

[0009] 3. By setting up a control mechanism, the first controller can detect the position of the edge of the film strip by the vision inspection mechanism. When the vision inspection mechanism finds a large deviation at the edge of the film strip, the first controller can promptly control the correction mechanism to adjust the movement path of the film strip, thereby dynamically correcting the deviation of the film strip during the punching process and making the movement path of the film strip return to the preset range. Thus, this device can effectively suppress the changes in the size of the through hole and edge position caused by the film deviation, significantly improve the accuracy and consistency of the through hole arrangement, and reduce the defect rate. It is especially suitable for applications such as carrier belts with high requirements for the positional accuracy of through holes.

[0010] According to a first aspect of the present invention, a punching and slitting device is provided, wherein the correction mechanism includes a first correction module and a second correction module. The first correction module is disposed at the feed end of the punching mechanism, and the second correction module is disposed at the feed end of the slitting mechanism. The first correction mechanism and the second correction mechanism cooperate to adjust the moving path of the film belt.

[0011] According to a first aspect of the present invention, a punching and slitting device includes a first correction module comprising a first correction roller frame and a first drive assembly for driving the first correction roller frame to rotate, wherein the first correction roller frame swings left and right to adjust the movement path of the film belt; the second correction module comprises a second correction roller frame and a second drive assembly for driving the second correction roller frame to rotate, wherein the second correction roller frame swings left and right to adjust the movement path of the film belt; the first correction roller frame and the second correction roller frame are arranged opposite to each other, and when adjusting the film belt, the swing directions of the first correction roller frame and the second correction roller frame are opposite.

[0012] According to a first aspect of the present invention, a punching and slitting apparatus includes a slitting and winding mechanism comprising a winding assembly, the winding assembly comprising a winding roller and a third drive assembly for driving the winding roller to rotate, the winding roller being used to wind a film strip of a preset width; the punching mechanism includes a punching die, a moving frame and a first linear movement module, the punching die being used to punch holes in the film strip, the moving frame being connected to the punching die, the first linear movement module being connected to the moving frame and used to drive the moving frame to move horizontally; the control mechanism includes a second controller, the second controller being electrically connected to the third drive assembly and the first linear movement module, the second controller being configured to: control the moving speed of the moving end of the first linear movement module according to the rotational speed of the winding roller, so that the punching die and the film strip move synchronously, and control the punching die to punch holes in the film strip.

[0013] According to a first aspect of the present invention, a punching and slitting device is provided, wherein the vision inspection module includes at least two industrial cameras, the at least two industrial cameras being arranged along the moving direction of the film belt.

[0014] According to a first aspect of the present invention, a punching and slitting device includes an unwinding mechanism comprising an unwinding assembly and a tensioning assembly. The unwinding assembly includes an unwinding shaft and a first motor for driving the unwinding shaft to rotate. A film roll is sleeved on the outer surface of the unwinding shaft, and the unwinding shaft is used to unwind the film strip. The tensioning assembly includes a tensioning roller, a rocker arm, and a cylinder. The tensioning roller is connected to the free end of the rocker arm and is used to abut against the film strip. The rocker arm is rotatably configured and hinged to the cylinder. The cylinder is rotatably configured and is used to drive the rocker arm to rotate so that the film strip is in a tensioned state.

[0015] According to a first aspect of the present invention, a punching and slitting device includes a control mechanism comprising a third controller electrically connected to the vision inspection mechanism and the cylinder. The third controller is used to adjust the air pressure of the cylinder when the vision inspection mechanism detects that the size between two adjacent through holes exceeds a preset range, so as to make the film strip be in a suitable tension state.

[0016] According to a first aspect of the present invention, a punching and slitting device is provided, wherein the slitting and winding mechanism further includes an upper disc cutter, a lower disc cutter, and a second motor for driving the upper disc cutter and the lower disc cutter to rotate, wherein the upper disc cutter and the lower disc cutter slit the film strip in the vertical direction.

[0017] A control method according to a second aspect of the present invention, applied to a punching and slitting device as described in any one of the above claims, the control method comprising the steps of: The visual inspection mechanism is used to set the first and second abnormal position ranges of the edge swing position of the membrane strip. Based on the first abnormal position range and the second abnormal position range, the acceptable position range of the edge swing position of the membrane strip is obtained; If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the qualified position range and enters the first abnormal range, it controls the correction mechanism to drive the film strip to swing from left to right until the current edge swing position of the film strip is within the qualified position range. If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the qualified position range and enters the second abnormal range, it controls the correction mechanism to drive the film strip to swing from right to left until the current edge swing position of the film strip is within the qualified position range. If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the acceptable position range and the abnormal position range, it controls the device to stop working.

[0018] A control method according to an embodiment of the present invention has at least the following beneficial effects: This invention pre-sets a first abnormal position range, a second abnormal position range, and a qualified position range. Based on these ranges, a correction response strategy is implemented. When the membrane belt edge swings within the first abnormal range (meaning the membrane belt is slightly deviated to the left), the correction mechanism drives the membrane belt to swing from left to right back to the qualified area. When it is within the second abnormal range (meaning the membrane belt is slightly deviated to the right), the correction mechanism drives the membrane belt to swing from right to left. The equipment stops only when the swing exceeds the abnormal range, indicating severe membrane belt deviation. This tiered control strategy can promptly correct common minor deviations, avoiding frequent shutdowns that affect production efficiency, and automatically stop and alarm when severe deviations occur, preventing batch production of defective products. Thus, this method significantly improves the continuity of equipment operation and the product qualification rate.

[0019] According to a second aspect of the present invention, a control method for obtaining a qualified position range of the edge swing position of a membrane strip based on a first abnormal position range and a second abnormal position range includes the step of: The correction mechanism is controlled to drive the edge of the film strip to swing to the left to the first left limit position, and the vision detection mechanism is controlled to record the first left limit position of the edge of the film strip. The correction mechanism is controlled to drive the edge of the film strip to swing to the left to the second left limit position, and the visual detection mechanism is controlled to record the second left limit position of the edge of the film strip; The first abnormal position range is formed between the first left limit position and the second left limit position; The correction mechanism is controlled to drive the edge of the film strip to swing to the right to the first right limit position, and the visual detection mechanism is controlled to record the first right limit position of the edge of the film strip. The correction mechanism is controlled to drive the edge of the film strip to swing to the right to the second right limit position, and the visual detection mechanism is controlled to record the second right limit position of the edge of the film strip. The range of the second abnormal position is formed between the first right extreme position and the first left extreme position; The qualified position range is formed between the first right limit position and the second left limit position.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a top view of a punching and slitting device according to an embodiment of the present invention; Figure 2 for Figure 1 A top view showing a correction mechanism for correcting leftward deviation of a punching and slitting device; Figure 3 for Figure 1 A top view showing a correction mechanism for correcting rightward deviation of a punching and slitting device; Figure 4 for Figure 1 The following is a front view of a correction mechanism for correcting rightward deviation of a punching and slitting device; Figure 5 for Figure 1 The image shows a front view of a punching die for a punching and slitting device; Figure 6 for Figure 1 The diagram shows the component connection of a punching and slitting device; Figure 7 for Figure 1 The diagram shows a flowchart of a control method for a punching and slitting device. Figure 8 for Figure 1 A flowchart illustrating step S500 of a control method for a punching and slitting device is shown. Figure 9 for Figure 1 The diagram shows the state of the film strip under visual conditions, representing a control method for a punching and slitting device.

[0023] Reference numerals: 100-Unwinding mechanism, 110-Punching mechanism, 120-Slitting and winding mechanism, 130-Vision inspection mechanism, 140-Correction mechanism, 150-Control mechanism, 160-First controller, 170-First correction module, 180-Second correction module, 190-First correction roller frame, 200-First drive assembly, 210-Second correction roller frame, 220-Second drive assembly, 230-Take-up roller, 240-Third drive assembly, 250-Punching die, 260-Moving frame, 270-First linear motion module, 280-Second controller, 290-Industrial camera, 300-Unwinding assembly, 311-Unwinding shaft, 312-First motor, 310 - Tensioning assembly, 320- Tensioning roller, 330- Swing rod, 340- Cylinder, 350- Third controller, 360- Upper disc cutter, 370- Lower disc cutter, 380- Second motor, 390- First correction roller shaft, 400- Second correction roller shaft, 410- First steering roller, 420- Second steering roller, 430- Third steering roller, 440- Press head, 450- Punch head, 460- Spring, 470- Fourth steering roller, 480- First abnormal position range, 490- Second abnormal position range, 500- First left limit position, 510- Second left limit position, 520- First right limit position, 530- Second right limit position, 540- Qualified position range. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0026] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, this is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] A punching and slitting device and control method according to an embodiment of the present invention are described below with reference to the accompanying drawings.

[0029] Reference Figure 1 The present invention aims to provide an embodiment of a punching and slitting device and a control method.

[0030] An embodiment of the present invention provides a punching and slitting device, comprising an unwinding mechanism 100, a punching mechanism 110, a slitting and rewinding mechanism 120, a vision inspection mechanism 130, a correction mechanism 140, and a control mechanism 150.

[0031] The unwinding mechanism 100 is used to unwind the film belt and keep the film belt taut.

[0032] In some specific embodiments of the present invention, reference is made to... Figure 4The unwinding mechanism 100 includes an unwinding assembly 300 and a tensioning assembly 310. The unwinding assembly 300 includes an unwinding shaft 311 and a first motor 312 that drives the unwinding shaft 311 to rotate. A film roll is sleeved on the outer surface of the unwinding shaft 311, and the unwinding shaft 311 is used to unwind the film belt. The tensioning assembly 310 includes a tensioning roller 320, a rocker arm 330 and a cylinder 340. The tensioning roller 320 is connected to the free end of the rocker arm 330 and is used to abut the film belt. The rocker arm 330 is rotatably set and is hinged to the cylinder 340. The cylinder 340 is rotatably set and is used to drive the rocker arm 330 to rotate so that the film belt is in a tensioned state.

[0033] It is understood that the unwinding mechanism 100 includes an unwinding assembly 300 and a tensioning assembly 310 with a cylinder 340. The unwinding shaft 311 is driven by a first motor 312 to actively unwind. The tensioning roller 320 is connected to the cylinder 340 through a rocker arm 330. The cylinder 340 rotatably drives the rocker arm 330 to swing up and down, so that the tensioning roller 320 always abuts the film strip with controllable pressure. Compared with passive unwinding or fixed tensioning devices, this structure can automatically adjust the angle of the rocker arm 330 according to the change of film roll diameter, maintain the dynamic stability of film strip tension, effectively reduce film stretching deformation or lateral deviation caused by unwinding tension fluctuations, and provide stable material feeding conditions for subsequent punching processes.

[0034] In some specific embodiments, the tensioning assembly 310 further includes a first guide roller 410 and a second guide roller 420. The first guide roller 410, the tension roller 320 and the second guide roller 420 are arranged sequentially along the conveying direction of the film belt, and the tension roller 320 is located below the first guide roller 410 and the second guide roller 420. The film belt passes around the first guide roller 410, the tension roller 320 and the second guide roller 420 in sequence, so that the tension roller 320 can abut against the upper surface of the film belt. When the tension roller 320 moves downward, the tension roller 320 can increase the tension of the film belt. When the tension roller 320 moves upward, the tension roller 320 can decrease the tension of the film belt.

[0035] The punching mechanism 110 is used to punch holes in the tensioned membrane strip to create through holes in the membrane strip.

[0036] The slitting and winding mechanism 120 is used to slit and wind up the punched film strip.

[0037] For visual inspection agency 130, refer to Figure 1 The visual inspection mechanism 130 is located at the discharge point of the punching mechanism 110 and is used to detect the position of the edge of the film strip, the distance between the edge of the film strip and the center of the through hole, and the size between two adjacent through holes in the length direction of the film strip.

[0038] It is understood that in this embodiment, by setting a vision inspection mechanism 130, the punching mechanism 110 punches the film strip fed by the unwinding mechanism 100. The vision inspection mechanism 130 is set at the discharge point of the punching mechanism 110, so that the vision inspection mechanism 130 can detect the position of the edge of the film strip, the distance between the edge of the film strip and the center of the through hole, and the size between two adjacent through holes in the length direction of the film strip. Thus, it is possible to measure in advance whether the position and size of the through hole of the punched film strip is qualified, detect punching defects in advance, monitor the position and size of the through hole, and reduce the occurrence of defective products.

[0039] In some specific embodiments of the present invention, the vision inspection module includes at least two industrial cameras 290, which are arranged along the moving direction of the film belt.

[0040] Understandably, the vision inspection module employs at least two industrial cameras 290 arranged along the direction of membrane belt movement. These multiple cameras 290 can detect the state of different positions on the membrane belt individually or collaboratively: for example, one camera detects the edge position of the membrane belt, while another camera detects the size of the through-hole relative to the edge or the spacing between adjacent through-holes; or two industrial cameras 290 can simultaneously acquire images, and data fusion can eliminate single-camera measurement errors. This multi-camera layout improves the redundancy and reliability of the inspection, accurately capturing the instantaneous positions of edges and through-holes even when the membrane belt moves at high speed, providing more precise feedback signals for correction and control, thereby improving overall control accuracy.

[0041] Specifically, the vision inspection unit 130 also includes a vision processor, which receives, processes and analyzes the photos taken by the industrial camera 290 according to a preset algorithm.

[0042] For correctional agency 140, refer to Figure 1 , Figure 2 and Figure 3 The correction mechanism 140 is located on the moving path of the membrane belt and is used to correct the moving path of the membrane belt.

[0043] It is understood that this embodiment, by setting a correction mechanism 140, which is located on the moving path of the membrane belt, enables the correction mechanism 140 to correct the moving path of the membrane belt. When this equipment processes membrane belts of different sizes, it is necessary to adjust the moving path of the membrane belt. The correction mechanism 140 can quickly change the moving path of the membrane belt so that the moving path of the membrane belt enters the preset range, thereby ensuring that the position and size of the through hole punched by the punching mechanism 110 are correct, greatly reducing the difficulty of adjustment and improving the efficiency of adjustment.

[0044] For control mechanism 150, refer to Figure 1 and Figure 6The control mechanism 150 includes a first controller 160, which is electrically connected to the vision inspection mechanism 130 and the correction mechanism 140 respectively, and is configured to control the correction mechanism 140 to adjust the movement path of the film strip according to the position of the edge of the film strip detected by the vision inspection mechanism 130.

[0045] It is understood that, in this embodiment, by setting up the control mechanism 150, the first controller 160 can detect the position of the edge of the film strip by the vision inspection mechanism 130. When the vision inspection mechanism 130 finds that the edge of the film strip has a large deviation, the first controller 160 can promptly control the correction mechanism 140 to adjust the movement path of the film strip, thereby dynamically correcting the deviation of the film strip during the punching process, so that the movement path of the film strip returns to the preset range. Thus, this equipment can effectively suppress the changes in the size of the through hole and edge position caused by the film deviation, significantly improve the accuracy and consistency of the through hole arrangement, and reduce the defect rate. It is especially suitable for application scenarios such as carrier belts with high requirements for the position accuracy of through holes.

[0046] In some specific embodiments of the present invention, the correction mechanism 140 includes a first correction module 170 and a second correction module 180. The first correction module 170 is disposed at the feeding end of the punching mechanism 110, and the second correction module 180 is disposed at the feeding end of the slitting mechanism. The first correction mechanism 140 and the second correction mechanism 140 cooperate to adjust the moving path of the film belt.

[0047] Understandably, the correction mechanism 140 is divided into a first correction module 170 located at the feeding end of the punching mechanism 110 and a second correction module 180 located at the feeding end of the slitting mechanism. The first correction module 170 performs preliminary correction on the film strip before punching, ensuring the film strip enters the punching station in an accurate position, fundamentally reducing the risk of deviation during punching. The second correction module 180 performs correction again before slitting, ensuring the stability of the film strip edge position during slitting, facilitating subsequent slitting and winding. The two correction modules work together to eliminate the cumulative deviation error caused by different stages in the conveying process, further improving the overall positioning accuracy of the through holes and edges.

[0048] In some specific embodiments of the present invention, reference is made to... Figure 1 , Figure 2 and Figure 3The first correction module 170 includes a first correction roller frame 190 and a first drive assembly 200 for driving the first correction roller frame 190 to rotate. The first correction roller frame 190 swings left and right to adjust the movement path of the film belt. The second correction module 180 includes a second correction roller frame 210 and a second drive assembly 220 for driving the second correction roller frame 210 to rotate. The second correction roller frame 210 swings left and right to adjust the movement path of the film belt. The first correction roller frame 190 and the second correction roller frame 210 are arranged opposite to each other. When adjusting the film belt, the swing directions of the first correction roller frame 190 and the second correction roller frame 210 are opposite.

[0049] Understandably, both the first correction module 170 and the second correction module 180 employ a left-right swinging correction roller frame structure, with opposite swinging directions. When the membrane belt passes the first correction roller frame 190, the first drive assembly 200 drives the first correction roller frame 190 to swing to one side, causing lateral displacement of the membrane belt. When passing the second correction roller frame 210, the second drive assembly 220 drives the roller frame to swing in the opposite direction, eliminating residual offset or membrane belt twisting that may result from a single correction. This coordinated swinging method in opposite directions can achieve more stable and efficient precise adjustment of the overall path of the membrane belt without increasing the internal torsional stress, avoiding new deviations or wrinkles caused by the correction action itself.

[0050] In one specific embodiment, the first alignment roller frame 190 has a plurality of first alignment rollers arranged side by side, the first alignment rollers abutting against the lower surface of the film belt and capable of adjusting the movement trajectory of the film belt; the second alignment roller frame 210 has a plurality of second alignment rollers arranged side by side, the second alignment rollers abutting against the lower surface of the film belt and capable of adjusting the movement trajectory of the film belt.

[0051] Specifically, the correction mechanism 140 also includes a third steering roller 430, which is disposed at the discharge end of the first correction roller frame 190 and located below the first correction roller. The third steering roller 430 is used to abut against the upper surface of the film belt, so that the film belt is in close contact with the first correction roller, ensuring that the first correction roller frame 190 can effectively correct the film belt.

[0052] The correction mechanism 140 also includes a fourth steering roller 470, which is disposed at the feed end of the second correction roller frame 210 and located below the second correction roller. The fourth steering roller 470 is used to abut against the upper surface of the film belt, so that the film belt is in close contact with the second correction roller, ensuring that the second correction roller frame 210 can effectively correct the film belt.

[0053] In some specific embodiments of the present invention, reference is made to... Figure 4 , Figure 5 and Figure 6The slitting and winding mechanism 120 includes a winding assembly, which includes a winding roller 230 and a third drive assembly 240 for driving the winding roller 230 to rotate. The winding roller 230 is used to wind up a film strip of a preset width. The punching mechanism 110 includes a punch 250, a moving frame 260, and a first linear motion module 270. The punch 250 is used to punch holes in the film strip. The moving frame 260 is connected to the punch 250. The first linear motion assembly is connected to the moving frame 260 and is used to drive the moving frame 260 to move horizontally. The control mechanism 150 includes a second controller 280, which is electrically connected to the third drive assembly 240 and the first linear motion module 270. The second controller 280 is configured to control the moving speed of the moving end of the first linear motion module 270 according to the rotation speed of the winding roller 230, so that the punch 250 and the film strip move synchronously, and control the punch 250 to punch holes in the film strip.

[0054] Understandably, by setting a second controller 280 to reflect the actual moving speed of the film belt based on the rotational speed of the take-up roller 230, the moving speed of the first linear motion module 270 is controlled to be synchronized with the film belt speed, and the punch 250 is controlled to perform punching in a synchronized state. In traditional punching equipment, the punch 250 is usually driven to punch at a fixed pitch or independently, which is prone to errors in hole spacing due to fluctuations in film belt speed. This solution keeps the punch 250 and the film belt synchronized in real time, ensuring that the size between two adjacent through holes is not affected by changes in the take-up speed or slight slippage of the film belt, thereby significantly improving the positional accuracy of the through holes in the length direction, and also facilitating high-speed continuous production.

[0055] In one specific embodiment, the punch 250 includes an upper die, a lower die, and a pneumatic component for driving the upper die closer to the lower die. The upper die has an upper template, a punch 450 disposed at the bottom of the upper template, and a pressure head 440 sleeved on the outer surface of the punch 450. The punch 450 and the pressure head 440 are slidably connected. The pressure head 440 is used to press the film strip tightly onto the lower die. A spring 460 is disposed between the punch 450 and the upper template. When the punch 450 punches a hole in the film strip, the spring 460 is used to drive the pressure head 440 to press the film strip tightly, preventing the film strip from shifting during punching. The lower die is provided with a cutting edge. The film strip passes between the upper die and the lower die. Under the driving action of the pneumatic component, the punch 450 can cooperate with the cutting edge to punch a hole in the film strip.

[0056] In some specific embodiments of the present invention, reference is made to... Figure 4 and Figure 6 The control mechanism 150 includes a third controller 350, which is electrically connected to the vision inspection mechanism 130 and the cylinder 340. The third controller 350 is used to adjust the air pressure of the cylinder 340 when the vision inspection mechanism 130 detects that the size between two adjacent through holes exceeds the preset range, so as to make the membrane belt in a suitable tension state.

[0057] Understandably, by setting up a third controller 350, the vision inspection mechanism 130 is electrically connected to the cylinder 340 of the tensioning assembly 310. When the vision inspection mechanism 130 detects that the size between two adjacent through holes exceeds the preset range, it indicates that the film belt tension is abnormal, causing longitudinal stretching or shrinkage. The third controller 350 can actively adjust the air pressure of the cylinder 340, change the clamping force of the tensioning roller 320 on the film belt, and thus dynamically adjust the tension state of the film belt. This tension closed-loop control based on through hole spacing detection solves the defect of traditional equipment where the tension force is fixed and cannot adapt to film material fluctuations or speed changes. It can suppress hole spacing changes caused by improper tension and further improve the through hole position accuracy.

[0058] In some specific embodiments of the present invention, the slitting and winding mechanism 120 further includes an upper disc cutter 360, a lower disc cutter 370, and a second motor 380 for driving the upper disc cutter and the lower disc cutter 370 to rotate. The upper disc cutter 360 and the lower disc cutter 370 slit the film strip in the up-down direction.

[0059] This embodiment also proposes a control method, referring to... Figure 7 The control method applied to the aforementioned punching and slitting equipment includes the following steps: Step S100: Control the visual inspection mechanism 130 to set the first abnormal position range 480 and the second abnormal position range 490 of the edge swing position of the membrane strip. Step S200: Based on the first abnormal position range 480 and the second abnormal position range 490, obtain the qualified position range 540 of the edge swing position of the membrane strip. Step S300: If the visual inspection mechanism 130 detects that the current edge swing position of the film strip exceeds the qualified position range 540 and enters the first abnormal range, the correction mechanism 140 is controlled to drive the film strip to swing from left to right until the current edge swing position of the film strip is within the qualified position range 540. Step S400: If the visual inspection mechanism 130 detects that the current edge swing position of the film strip exceeds the qualified position range 540 and enters the second abnormal range, then the correction mechanism 140 is controlled to drive the film strip to swing from right to left until the current edge swing position of the film strip is within the qualified position range 540. In step S500, if the visual inspection mechanism 130 detects that the current edge swing position of the membrane strip exceeds the qualified position range 540 and exceeds the abnormal position range, the control equipment stops working.

[0060] It is understood that this embodiment pre-sets a first abnormal position range 480, a second abnormal position range 490, and a qualified position range 540. Based on these ranges, a correction response strategy is implemented. When the membrane belt edge swings within the first abnormal range, it can be understood as the membrane belt slightly deviating to the left. The correction mechanism 140 is then controlled to drive the membrane belt to swing from left to right back to the qualified position range 540. When it is within the second abnormal range, it can be understood as the membrane belt slightly deviating to the right. The correction mechanism 140 is then controlled to drive the membrane belt to swing from right to left back to the qualified position range 540. When the swing exceeds the abnormal range, the equipment is stopped, which can be understood as the membrane belt being severely misaligned. This hierarchical control strategy can not only correct common minor misalignments in a timely manner, avoiding frequent shutdowns that affect production efficiency, but also automatically stop and alarm when severe misalignment occurs, preventing the generation of defective products in batches. Thus, this method significantly improves the continuity of equipment operation and the product qualification rate.

[0061] Reference Figure 8 and Figure 9 In some specific embodiments of the present invention, step S300 includes the following steps: Step S310: Control the correction mechanism 140 to drive the edge of the film strip to swing to the left to the first left limit position 500, and control the vision detection mechanism 130 to record the first left limit position 500 of the edge of the film strip. In step S320, the correction mechanism 140 is controlled to drive the edge of the film strip to swing to the left to the second left limit position 510, and the vision detection mechanism 130 is controlled to record the second left limit position 510 of the edge of the film strip. In step S330, a first abnormal position range 480 is formed between the first left limit position 500 and the second left limit position 510. In step S340, the correction mechanism 140 is controlled to drive the edge of the film strip to swing to the right to the first right limit position 520, and the vision detection mechanism 130 is controlled to record the first right limit position 520 of the edge of the film strip. In step S350, the correction mechanism 140 is controlled to drive the edge of the film strip to swing to the right to the second right limit position 530, and the vision detection mechanism 130 is controlled to record the second right limit position 530 of the edge of the film strip. In step S360, a second abnormal position range 490 is formed between the first right limit position 520 and the second right limit position 530; In step S370, a qualified position range 540 is formed between the first right limit position 520 and the first left limit position 500.

[0062] Understandably, by controlling the correction mechanism 140 to drive the film belt to the first left limit position, the second left limit position, the first right limit position, and the second right limit position sequentially, and the vision inspection mechanism 130 automatically records these limit positions, thereby quantifying and defining the first abnormal range (left deviation danger zone), the second abnormal range (right deviation danger zone), and the acceptable position range 540 between the two. This self-learning method based on actual equipment action and visual feedback does not require manual measurement or experience setting, and can automatically adapt to different widths, different materials of films, and different equipment installation errors, ensuring the accuracy and versatility of correction control, while also simplifying the equipment debugging process.

[0063] In the description of this specification, the references to terms such as "an embodiment, some embodiments, illustrative embodiments, example, specific example, or examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A punching and slitting device, characterized in that, include: The unwinding mechanism is used to feed the film tape and keep the film tape taut; The punching mechanism is used to punch holes in the tensioned membrane tape. The slitting and winding mechanism is used to slit and wind up the punched film strip; A visual inspection mechanism is installed at the discharge point of the punching mechanism to detect the position of the edge of the film strip, the distance between the edge of the film strip and the center of the through hole, and the size between two adjacent through holes in the length direction of the film strip. The correction mechanism is located on the moving path of the membrane belt and is used to correct the moving path of the membrane belt. The control mechanism includes a first controller, which is electrically connected to both the vision detection mechanism and the correction mechanism, and is configured to: control the correction mechanism to adjust the movement path of the film strip based on the position of the edge of the film strip detected by the vision detection mechanism.

2. The punching and slitting equipment according to claim 1, characterized in that, The correction mechanism includes a first correction module and a second correction module. The first correction module is located at the feed end of the punching mechanism, and the second correction module is located at the feed end of the slitting mechanism. The first correction mechanism and the second correction mechanism cooperate to adjust the movement path of the film belt.

3. The punching and slitting equipment according to claim 2, characterized in that, The first correction module includes a first correction roller frame and a first drive component for driving the first correction roller frame to rotate. The first correction roller frame swings left and right to adjust the movement path of the film belt. The second correction module includes a second correction roller frame and a second drive assembly for driving the second correction roller frame to rotate. The second correction roller frame swings left and right to adjust the movement path of the film belt. The first and second alignment roller frames are arranged opposite to each other, and when the film belt is adjusted, the first and second alignment roller frames swing in opposite directions.

4. The punching and slitting equipment according to claim 1, characterized in that, The slitting and winding mechanism includes a winding assembly, which includes a winding roller and a third drive assembly for driving the winding roller to rotate. The winding roller is used to wind up a film strip of a preset width. The punching mechanism includes a punching die, a movable frame, and a first linear moving module. The punching die is used to punch holes in the film strip. The movable frame is connected to the punching die. The first linear moving module is connected to the movable frame and is used to drive the movable frame to move horizontally. The control mechanism includes a second controller, which is electrically connected to the third drive assembly and the first linear motion module. The second controller is configured to control the moving speed of the moving end of the first linear motion module according to the rotation speed of the take-up roller, so that the punch and the film belt move synchronously, and control the punch to punch holes in the film belt.

5. The punching and slitting equipment according to claim 1, characterized in that, The vision inspection module includes at least two industrial cameras, which are arranged along the direction of movement of the film belt.

6. The punching and slitting equipment according to claim 1, characterized in that, The unwinding mechanism includes an unwinding assembly and a tensioning assembly. The unwinding assembly includes an unwinding shaft and a first motor that drives the unwinding shaft to rotate. A film roll is sleeved on the outer surface of the unwinding shaft. The unwinding shaft is used to unwind the film strip. The tensioning assembly includes a tensioning roller, a rocker arm, and a cylinder. The tensioning roller is connected to the free end of the rocker arm and is used to abut against the film belt. The rocker arm is rotatably mounted and hinged to the cylinder. The cylinder is rotatably mounted and is used to drive the rocker arm to rotate so that the film belt is in a tensioned state.

7. The punching and slitting equipment according to claim 6, characterized in that, The control mechanism includes a third controller, which is electrically connected to the vision inspection mechanism and the cylinder. The third controller is used to adjust the air pressure of the cylinder when the vision inspection mechanism detects that the size between two adjacent through holes exceeds a preset range, so as to make the membrane belt in a suitable tension state.

8. The punching and slitting equipment according to claim 1, characterized in that, The slitting and winding mechanism also includes an upper disc cutter, a lower disc cutter, and a second motor that drives the upper and lower disc cutters to rotate. The upper and lower disc cutters slit the film strip in the vertical direction.

9. A control method, characterized in that, The control method, applied to a punching and slitting device according to any one of claims 1 to 8, includes the following steps: The visual inspection mechanism is used to set the first and second abnormal position ranges of the edge swing position of the membrane strip. Based on the first abnormal position range and the second abnormal position range, the acceptable position range of the edge swing position of the membrane strip is obtained; If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the qualified position range and enters the first abnormal range, it controls the correction mechanism to drive the film strip to swing from left to right until the current edge swing position of the film strip is within the qualified position range. If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the qualified position range and enters the second abnormal range, it controls the correction mechanism to drive the film strip to swing from right to left until the current edge swing position of the film strip is within the qualified position range. If the visual inspection mechanism detects that the current edge swing position of the film strip exceeds the acceptable position range and the abnormal position range, it controls the device to stop working.

10. The control method according to claim 9, characterized in that, The step of obtaining the acceptable position range of the edge swing position of the membrane strip based on the first abnormal position range and the second abnormal position range includes the following steps: The correction mechanism is controlled to drive the edge of the film strip to swing to the left to the first left limit position, and the visual detection mechanism is controlled to record the first left limit position of the edge of the film strip. The correction mechanism is controlled to drive the edge of the film strip to swing to the left to the second left limit position, and the vision detection mechanism is controlled to record the second left limit position of the edge of the film strip; The first abnormal position range is formed between the first left limit position and the second left limit position; The correction mechanism is controlled to drive the edge of the film strip to swing to the right to the first right limit position, and the visual detection mechanism is controlled to record the first right limit position of the edge of the film strip. The correction mechanism is controlled to drive the edge of the film strip to swing to the right to the second right limit position, and the visual detection mechanism is controlled to record the second right limit position of the edge of the film strip. The range of the second abnormal position is formed between the first right limit position and the second right limit position; The qualified position range is formed between the first right limit position and the first left limit position.

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