High-precision laser cutting and transferring equipment for PET (Polyethylene Terephthalate) film cloth

Abstract

The invention provides high-precision laser cutting and transferring equipment for PET film cloth. The high-precision laser cutting and transferring equipment is used for solving the technical bottleneck problem of a PET film cloth cutting and transferring process in the prior art. The invention provides PET film cloth high-precision laser cutting and transferring equipment. The PET film cloth high-precision laser cutting and transferring equipment comprises a film cloth automatic stable stretching and flattening mechanism, a laser cutting mechanism and a film cloth split charging and transferring trolley. The film cloth automatic tension stabilizing and flattening mechanism is used for flattening the film cloth and automatically adjusting the tension of the film cloth output by the line body in the flattening process, so that the film cloth is prevented from being too loose or too tight; the laser cutting mechanism is used for performing synchronous laser cutting on the flattened film cloth and cutting the continuous flexible film cloth into blocks required by subsequent processing; the film cloth sub-packaging transfer trolley can be stretched and opened to automatically store blocky PET film cloth at different horizontal positions in a step-by-step manner; after being folded and contracted, the film cloth subpackaging transfer trolley is reduced in size, the occupied space in the transportation and blocky film cloth storage process can be reduced, and after being folded, the upper storage bin and the lower storage bin are sealed, and film cloth oxidation prevention is facilitated.

Description

Technical Field

[0001] This invention relates to the field of membrane fabric cutting and transfer technology, and in particular to a high-precision laser cutting and transfer device for PET membrane fabric. Background Technology

[0002] In high-tech industries such as flexible electronics and new energy batteries, PET film is a core functional material, and its processing precision and efficiency directly determine the performance of the end product. However, current film cutting and transfer processes still face significant technical bottlenecks. For example, the invention patent with announcement number CN118768762A, "An Automatic Feeding Nylon Decorative Fabric Laser Cutting Device," while achieving automatic feeding through a feeding mechanism and leveling the nylon decorative fabric before it enters the laser cutting area, still presents the following problems when applied to PET film cutting processes: 1. Low cutting efficiency The device adopts a single-station cutting mode, which can only divide one membrane fabric into two pieces at a time, and cannot achieve simultaneous cutting of multiple pieces. This inefficient cutting results in a serious shortage of production capacity, making it difficult to meet the high throughput requirements of downstream processes for membrane fabric. 2. Lack of tension control After the laser cutting head cuts the membrane fabric into two sections, the right section of the membrane fabric separates from the left continuous matrix. Due to the lack of a clamping and positioning mechanism and a closed-loop tension control system, the membrane fabric is prone to tension fluctuations during the unwinding and coating process. This uncontrolled tension will cause deviations in the membrane fabric stretch rate, which in turn will lead to wrinkles or tears. 3. Insufficient automation in the transfer process Existing technologies generally lack an automatic transfer module after cutting, relying on manual operation, which is time-consuming and inefficient. Furthermore, manual contact can increase the contamination rate of the membrane fabric and the rate of wrinkles and defects. 4. Defects in storage after transfer The storage mechanisms for membrane fabrics are mostly fixed structures with non-adjustable volume, resulting in low space utilization and high warehousing costs. Furthermore, the storage mechanisms are mostly open designs, exposing the membrane fabric to the air, which leads to insufficient dust protection and easy oxidation and dust pollution. The sorting adaptability of the storage mechanisms is poor, making them unable to meet the needs of multi-station sorting and storage. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a high-precision laser cutting and transfer device for PET film fabric, which solves the problem that there are still significant technical bottlenecks in the cutting and transfer process of PET film fabric in the prior art.

[0004] To achieve the above and other related objectives, the present invention provides a high-precision laser cutting and transfer device for PET film, comprising: an unwinding end, a PET coating line body installed at the right end of the unwinding end, and a film cutting and transfer end body installed at the right end of the PET coating line body, wherein the unwinding end, the PET coating line body and the film cutting and transfer end are fixedly connected. The membrane fabric cutting and transfer end includes a base, on which an installation frame is fixed. A positioning plate is installed on the inner side of the lower wall of the installation frame. An automatic membrane fabric stabilization and flattening mechanism is provided between the upper left wall of the base and the upper part of the installation frame. A laser cutting mechanism is installed on the top of the rear wall of the installation frame. A membrane fabric dispensing and transfer vehicle is driven inside the installation frame. The unwinding end is used for continuous automatic unwinding and output of uncoated PET film; The PET coating line is used for the pretreatment, conductive copper plating and post-treatment of PET film cloth for horizontal continuous copper coating. The film cutting and transfer end is used to cut the PET film into pieces and then transfer them after the film coating is completed. The automatic tensioning and flattening mechanism is used to flatten the PET film after lamination and automatically adjust the tension of the film output from the output end of the PET lamination line during the flattening process to prevent the film from being too loose or too tight, resulting in wrinkles or tears. The laser cutting mechanism is used to simultaneously laser cut the flattened PET film fabric, cutting the continuous flexible film fabric into blocks required for subsequent processing. The membrane fabric dispensing and transfer vehicle has two states: extended and folded. When extended, the membrane fabric dispensing and transfer vehicle can automatically sort and store block PET membrane fabrics at different horizontal positions. When folded, the membrane fabric dispensing and transfer vehicle reduces its volume, which can reduce the space occupied during transportation and storage of block membrane fabrics. Moreover, when folded, the upper and lower storage compartments are sealed, which is beneficial for preventing oxidation and dust of the membrane fabric.

[0005] Optionally, the automatic membrane tensioning and flattening mechanism includes a sliding roller bracket, a slide block, a positioning pin, a tension adjusting roller, a positioning roller, and a buffer roller. The sliding roller bracket is installed on the upper left side of the base. Slide blocks are slidably installed in the cuboid grooves on the front and rear walls of the sliding roller bracket. Positioning pins are installed on the inner sides of the front and rear walls of the sliding roller bracket, and the inner sides of the slide blocks are slidably sleeved with the positioning pins. A tension adjusting roller is rotatably installed between the two slide blocks. A positioning roller is rotatably installed between the upper left and upper right parts of the sliding roller bracket. A pair of buffer rollers are rotatably installed opposite each other on the upper left side of the mounting frame, and the outer walls of the two buffer rollers are tangent to each other, with their tangent planes horizontally coinciding with the plane formed by the vertex lines of the two positioning rollers.

[0006] Optionally, the automatic membrane stretching and flattening mechanism further includes transmission grooves, rotating shafts, gears, drive discs, limit pins, sliding guide rails, sliding columns, locking pins, L-shaped linkage rods, locking slots, T-shaped linkage rods, and matching slide rails. Two transmission grooves are provided in the front and rear walls of the mounting frame. The four transmission grooves are positioned in pairs, one in front and one behind. Four rotating shafts are rotatably installed in each transmission groove on the left, and two rotating shafts are rotatably installed in each transmission groove on the right. Gears are fixedly sleeved on the outer side of each rotating shaft, and the positions of the front and rear rotating shafts and gears are also paired. The four gears in the left front and left rear sections are divided into an upper pair and a lower pair, forming a... Two gears mesh together. A drive disc is fixedly sleeved on the inner side of the rotating shaft. Two limit pins are fixedly installed on the inner side of the drive disc, and the two limit pins are distributed on the left and right sides of the rotating shaft. The centers of the two limit pins and the center of the rotating shaft are on the same straight line. Sliding guide rails are fixed on the upper inner side of the front and rear walls of the mounting frame, and the sliding guide rails are matched with the drive discs one by one. A sliding column is slidably installed in the sliding guide rail. A locking pin is fixed on the upper inner side of the sliding column. An L-shaped linkage rod is rotatably installed on the upper inner side of the front and rear walls of the mounting frame. A locking groove is opened on the L-shaped linkage rod. A T-shaped linkage rod is fixed on the middle inner side of the sliding column. A matching slide rail is fixed on the inner end of the sliding column.

[0007] Optionally, the locking pin is slidably disposed in the locking groove, and the long rod portion of the T-shaped linkage rod and the short rod portion of the L-shaped linkage rod are intermittently pressed into contact with the outer walls of the two limiting pins, and the sliding directions of the two sliding columns that are matched with each pair of meshing gears are opposite.

[0008] Optionally, the automatic membrane tensioning and flattening mechanism further includes a sliding block, a positioning clamp, and a clamp guide rail. The sliding block is intermittently slidably connected inside the sliding block, and the positioning clamp is fixedly connected to the inner end face of the sliding block. A clamp guide rail is fixed to the upper inner side of the front and rear walls of the mounting frame. The positions of the two clamp guide rails are corresponding front and back. The two positioning clamps on the right can pass through the two clamp guide rails after being combined. The sliding blocks at the front and rear of the positioning clamps are slidably connected to the clamp guide rails.

[0009] Optionally, the laser cutting mechanism includes a mounting top plate, laser guide rails, laser guide seats, and a cutting laser. The mounting top plate is fixed to the top of the rear wall of the mounting frame, and five laser guide rails are fixed at equal intervals on the lower wall of the mounting top plate. Laser guide seats are slidably installed in the five laser guide rails, and the cutting laser is fixed to the lower wall of the laser guide seats.

[0010] Optionally, the membrane fabric dispensing and transfer vehicle includes a fixed base frame, conveyor wheels, folding telescopic guide rail assemblies, support plates, membrane fabric loading boxes, rotating seats, supports, folding drive linkages, limiting grooves, and limiting shafts. Three pairs of conveyor wheels are equidistantly and rotatably mounted on the lower wall of the fixed base frame. Four folding telescopic guide rail assemblies are equidistantly arranged from top to bottom on the right side of the left wall of the fixed base frame. Support plates are slidably mounted on the right ends of the four folding telescopic guide rail assemblies. Membrane fabric loading boxes are fixedly mounted on the upper wall of the short end of the fixed base frame and the upper walls of the four support plates. Rotating seats are fixedly mounted on the lower right walls of the four support plates. Supports are fixedly mounted on the right front and rear walls of the short end of the fixed base frame. Folding drive linkages are rotatably mounted within the two supports. Limiting grooves are formed within the folding drive linkages. Limiting shafts are rotatably mounted within the four rotating seats, and the front and rear ends of the four limiting shafts are slidably mounted within the front and rear limiting grooves, respectively.

[0011] Optionally, the folding telescopic guide rail group is divided into front and rear groups, each group consisting of multiple layers of slide rails that can slide and extend left and right, and the four folding telescopic guide rail groups are arranged from top to bottom as four layers of slide rails, three layers of slide rails, two layers of slide rails and one layer of slide rails.

[0012] Optionally, the lower left corner of the fixed base frame is intermittently pressed and locked with the positioning plate, and the left wall of the five membrane loading boxes is on the same vertical line as the sliding path of the cutting laser.

[0013] As described above, the high-precision laser cutting and transfer equipment for PET film of the present invention has at least the following beneficial effects: 1. The automatic tensioning and flattening mechanism of the film fabric allows the tension regulating roller to rise and fall automatically to stabilize the film fabric tension when the film fabric is stretched and flattened to the right. When the flattened film fabric is ready to be cut, the two ends of the cutting surface of the film fabric are clamped by the positioning clamp to prevent uncontrolled tension and complete the closed loop of continuous output and cutting processing of the roll film fabric. During the clamping process of the two ends of the film fabric cutting surface, the tension regulating roller descends to control the output film fabric tension of the PET coating line, achieving dynamic tension stabilization. This results in high film fabric stretching rate, avoids wrinkles or tears, and enhances safety.

[0014] 2. By setting up a laser cutting mechanism, five cutting lasers are used for simultaneous cutting, which enables the simultaneous cutting of five membrane fabrics. This multi-station cutting process has high capacity and can meet the high throughput requirements of downstream processes for membrane fabrics.

[0015] 3. By extending and opening the membrane fabric packaging and transfer cart, the cut and segmented block membrane fabric can be automatically collected and stored, reducing manual intervention and avoiding contamination, wrinkles, and tears caused by manual contact with the membrane fabric.

[0016] 4. By folding and retracting the membrane fabric dispensing and transfer cart, the volume of the membrane fabric dispensing and transfer cart can be compressed when storing membrane fabric, thereby improving space utilization and reducing warehousing costs. After the membrane fabric loading box is folded, the upper and lower compartments are sealed, improving dustproof and anti-oxidation performance. When the membrane fabric needs to be sorted and processed later, it can be unfolded and folded again, which can meet the needs of multi-station sorting and has strong sorting adaptability. Attached Figure Description

[0017] Figure 1 The image shown is a perspective view of the overall structure of the present invention from a southeast angle.

[0018] Figure 2 The image shown is a front view of the overall structure of the present invention.

[0019] Figure 3 The image shown is a perspective view from the southeast of the structure of the membrane fabric cutting and transfer end of the present invention.

[0020] Figure 4 The image shown is a front view of the membrane fabric cutting and transfer end structure of the present invention.

[0021] Figure 5 The image shown is a southwest perspective view of the positioning clamp transmission structure of the present invention.

[0022] Figure 6 The diagram shown is a front view of the positioning clamp opening and closing mechanism of the present invention.

[0023] Figure 7 The image shown is a perspective view of the laser cutting mechanism structure from a southeast-facing, upward angle, taken from the cross-sectional view of the front wall of the mounting bracket of this invention.

[0024] Figure 8 The image shown is a perspective view of the automatic membrane tensioning and flattening mechanism structure from a southeast-facing, upward-looking angle, with the central section of the mounting frame of this invention in cross-section.

[0025] Figure 9 The image shown is a southwest-view perspective perspective of the membrane fabric dispensing and transfer vehicle structure of the present invention.

[0026] Figure 10 The image shown is a southwest-view perspective perspective view of the internal transmission structure of the membrane fabric cutting and transfer end in the case of the present invention without the front wall of the mounting bracket.

[0027] Figure 11 The image shown is a southeast-view perspective perspective of the internal transmission structure of the membrane fabric cutting and transfer end in the case of the present invention without the front wall of the mounting bracket.

[0028] Component designation explanation 1. Unwinding end; 2. PET film-coated production line; 3. Membrane fabric cutting and transfer end; 301. Base; 302. Mounting bracket; 303. Positioning plate; 4. Automatic membrane fabric tensioning and flattening mechanism; 401. Sliding roller bracket; 402. Slide block; 403. Positioning pin; 404. Tension adjusting roller; 405. Positioning roller; 406. Buffer roller; 407. Transmission groove; 408. Rotating shaft; 409. Gear; 410. Drive disc; 411. Limit pin; 412. Sliding guide rail; 413. Sliding column; 414. Locking pin; 415. L-shaped linkage rod; 416. Locking groove; 417. T-shaped linkage rod; 418. Matching slide rail; 419. Matching slider; 420. Positioning clamping plate; 421. Clamping plate guide rail; 5. Laser cutting mechanism; 501. Mounting top plate; 502. Laser guide rail; 503. Laser guide seat; 504. Cutting laser; 6. Membrane fabric packaging and transfer vehicle; 601. Fixed base frame; 602. Conveyor wheel; 603. Folding telescopic guide rail assembly; 604. Support plate; 605. Membrane fabric loading box; 606. Rotary seat; 607. Support; 608. Folding drive linkage; 609. Limiting groove; 610. Limiting shaft. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0030] As described in the background section, current membrane fabric cutting and transfer processes still face significant technical bottlenecks. For example, the invention patent CN118768762A, "An Automatic Feeding Nylon Decorative Fabric Laser Cutting Device," while achieving automatic feeding through a feeding mechanism and leveling the nylon decorative fabric body before entering the laser cutting area, still suffers from the following problems when applied to PET membrane fabric cutting: 1. Low cutting efficiency: This device uses a single-station cutting mode, capable of dividing a single membrane fabric into two pieces at a time, making simultaneous cutting of multiple pieces impossible. This inefficient cutting results in severely insufficient production capacity, making it difficult to meet the high throughput demands of downstream processes; 2. Lack of tension control: After the laser cutting head cuts the membrane fabric into two segments, the right segment detaches from the left continuous substrate due to a lack of clamping and positioning. 1. **Inadequate Automation in Transfer Processes:** Existing technologies generally lack automated transfer modules after cutting, relying on manual operation. This results in long transfer times, low efficiency, and increased membrane contamination and wrinkle rates due to human contact. 2. **Post-Transfer Storage Defects:** Membrane storage mechanisms are mostly fixed structures with non-adjustable volumes, leading to low space utilization and high warehousing costs. Furthermore, their open designs expose the membrane to air, resulting in insufficient dust protection and easy oxidation and dust contamination. Finally, the poor adaptability of storage mechanisms makes them unsuitable for multi-station sorting and storage needs.

[0031] like Figures 1-4 As shown, in order to solve the above problems, the present invention provides a high-precision laser cutting and transfer device for PET film, including: an unwinding end 1, a PET coating line 2 installed on the right end of the unwinding end 1, and a film cutting and transfer end 3 installed on the right end of the PET coating line 2, and the unwinding end 1, the PET coating line 2 and the film cutting and transfer end 3 are fixedly connected. The membrane fabric cutting and transfer end 3 includes a base 301, a mounting frame 302 fixed on the base 301, a positioning plate 303 installed on the inner side of the lower wall of the mounting frame 302, an automatic membrane fabric stabilizing and flattening mechanism 4 between the upper left wall of the base 301 and the upper part of the mounting frame 302, a laser cutting mechanism 5 installed on the top of the rear wall of the mounting frame 302, and a membrane fabric dispensing and transfer cart 6 is driven inside the mounting frame 302. Among them, the unwinding end 1 is used for continuous automatic unwinding and output of uncoated PET film; Among them, the PET coating line 2 is used for the pretreatment, conductive copper plating and post-treatment of PET film cloth for horizontal continuous copper coating. Among them, the film cutting and transfer end 3 is used to cut the PET film into pieces and then transfer them after the film coating is completed. Example 1

[0032] Please see Figures 3-8 and Figures 10-11 To flatten the coated PET film and automatically adjust the tension of the film output from the PET coating line 2 during the flattening process, preventing the film from being too loose or too tight, thus avoiding wrinkles or tears, this invention provides a high-precision laser cutting and transfer device for PET film, comprising: an automatic film tensioning and flattening mechanism 4. The automatic film tensioning and flattening mechanism 4 includes a sliding roller bracket 401, a slide block 402, a positioning pin 403, a tension adjusting roller 404, a positioning roller 405, and a buffer roller 406. The sliding roller bracket 401 is installed on the upper left side of the base 301. Slide blocks 402 are slidably installed in the cuboid grooves on the front and rear walls of the sliding roller bracket 401. Positioning pins 402 are installed on the inner sides of the front and rear walls of the sliding roller bracket 401. 3. The inner side of the slide block 402 is slidably connected to the positioning slide pin 403. A tension adjusting roller 404 is rotatably installed between the front and rear slide blocks 402. A positioning roller 405 is rotatably installed between the upper left and upper right parts of the sliding roller bracket 401. The slide block 402 slides up and down on the outer wall of the positioning slide pin 403, which can drive the tension adjusting roller 404 to rise and fall, and adjust the tension of the membrane between the two buffer rollers 406. A pair of buffer rollers 406 are rotatably installed opposite each other on the upper left part of the mounting frame 302. The outer walls of the two buffer rollers 406 rotate tangent to each other. Their tangent plane is horizontally coincident with the plane formed by the vertex lines of the two positioning rollers 405. The upper buffer roller 406 rotates counterclockwise and the lower buffer roller 406 rotates clockwise, which can apply a transmission force from left to right to the membrane.

[0033] Among them, such as Figures 5-7As shown, the automatic membrane fabric tensioning and flattening mechanism 4 also includes a transmission groove 407, a rotating shaft 408, a gear 409, a drive disc 410, a limit pin 411, a sliding guide rail 412, a sliding column 413, a locking pin 414, an L-shaped linkage rod 415, a locking groove 416, a T-shaped linkage rod 417, and a matching slide rail 418. Two transmission grooves 407 are provided in both the front and rear walls of the mounting bracket 302. The four transmission grooves 407 are positioned in pairs, one in front and one behind. Each transmission groove 407 on the left side has four rotating shafts 408 rotatably mounted within it, and each transmission groove on the right side... Two rotating shafts 408 are rotatably mounted inside shaft 407. Gears 409 are fixedly sleeved on the outer side of shaft 408, and the positions of the front and rear shafts 408 correspond to each other in pairs. The positions of the front and rear gears 409 are also corresponding to each other in pairs. The four gears 409 in the left front and left rear parts are divided into upper and lower pairs, with the pairs of gears 409 meshing with each other. A drive disk 410 is fixedly sleeved on the inner side of shaft 407. Two limit pins 411 are fixedly mounted on the inner side of drive disk 410, and the two limit pins 411 are distributed on the shaft 407. On the left and right sides of 8, the centers of the two limit pins 411 are on the same straight line as the center of the rotating shaft 408. Sliding guide rails 412 are fixed to the upper inner sides of the front and rear walls of the mounting bracket 302, and the sliding guide rails 412 are matched one-to-one with the drive disc 410. A sliding column 413 is slidably installed inside the sliding guide rail 412, and a locking pin 414 is fixed to the upper inner side of the sliding column 413. An L-shaped linkage rod 415 is rotatably installed on the upper inner sides of the front and rear walls of the mounting bracket 302. A slot 416 is provided on the L-shaped linkage rod 415. The middle inner side of the sliding column 413... A T-shaped linkage rod 417 is fixed, and a matching slide rail 418 is fixed to the inner end of the slide column 413. Two rotating shafts 408 with corresponding front and rear positions rotate synchronously in the same direction, driving the drive disk 410 to move in tandem. The limit pin 411 on the drive disk 410 abuts against the long rod part of the T-shaped linkage rod 417, pushing the slide column 413 to slide synchronously inward along the sliding guide rail 412, causing the upper and lower matching slide rails 418 to press inward synchronously. The meshing transmission of the gear 409 can drive the opening and closing actions of the left matching slide rail 418 and the right matching slide rail 418 to be opposite when they are on the same side.

[0034] Among them, such as Figure 6 As shown, the locking pin 414 is slidably disposed in the locking groove 416. When the locking pin 414 moves with the sliding column 413, the sliding limiting effect of the locking pin 414 and the locking groove 416 can drive the L-shaped linkage rod 415 to rotate. The long rod part of the T-shaped linkage rod 417 and the short rod part of the L-shaped linkage rod 415 intermittently press against the outer wall of the two limiting pins 411. When the drive disc 410 drives the limiting pins 411 to rotate, they can abut against the long rod part of the T-shaped linkage rod 417 or the short rod part of the L-shaped linkage rod 415 to push the change of position of the T-shaped linkage rod 417 or the L-shaped linkage rod 415. The sliding direction is opposite to that of the two sliding columns 413 that are matched with each pair of meshing gears 409.

[0035] Among them, such as Figures 4-6 , Figure 8 and Figures 10-11 As shown, the automatic membrane fabric stabilization and flattening mechanism 4 also includes a sliding block 419, a positioning clamping plate 420, and a clamping plate guide rail 421. The sliding block 419 is intermittently slidably connected inside the sliding block 418. The positioning clamping plate 420 is fixedly connected to the inner end face of the sliding block 419. A clamping plate guide rail 421 is fixed on the upper inner side of the front and rear walls of the mounting frame 302. The positions of the two clamping plate guide rails 421 are corresponding front and back. After the two positioning clamping plates 420 on the right are combined, they can pass through the two clamping plate guide rails 421. The sliding blocks 419 at the front and rear of the positioning clamping plates 420 are slidably connected to the clamping plate guide rails 421. Under the sliding action of the sliding block 419 and the clamping plate guide rail 421, the upper and lower positioning clamping plates 420 holding the membrane fabric can slide left and right, clamp the end of the membrane fabric, drive the membrane fabric to move, and enter the right end of the clamping plate guide rail 421 or the right end of the sliding block 419.

[0036] In use, the continuous self-unwinding end 1 of the roll PET base film is output from left to right, and then passes through the PET coating line 2 for coating processing. After processing, the film continues to be output to the right and enters the film cutting and transfer end 3. The film first passes through the upper wall of the positioning roller 405 at the left end, passes through the lower wall of the tension adjusting roller 404, and then is output from the upper wall of the positioning roller 405 at the right end to the space between two buffer rollers 406. The upper buffer roller 406 rotates counterclockwise and the lower buffer roller 406 rotates clockwise, applying a left-to-right conveying force to the film, conveying the right end of the continuous roll film to the space between a pair of positioning clamps 420 on the right. The outer ends of the rotating shafts 408 located at both ends of the clamp guide rails 421 on the left and right sides are... A drive motor is connected, and two corresponding rotating shafts 408 rotate synchronously in the same direction, driving the drive disc 410 to move in tandem. This causes the limiting pin 411 on the drive disc 410 to abut against the long rod of the T-shaped linkage rod 417, pushing the sliding column 413 to slide inward synchronously along the sliding guide rail 412. This causes the upper and lower positioning clamping plates 420 to press inward synchronously, clamping the right end of the membrane cloth. At the same time, during this process, the locking pin 414 moves with the sliding column 413, and its sliding limiting action with the locking groove 416 drives the L-shaped linkage rod 415 to rotate. This causes the outer wall of the short rod of the L-shaped linkage rod 415, which has an oblique angle, to be on the rotation path of another limiting pin 411, thus clamping the upper and lower positioning clamping plates 420 of the membrane cloth. Under the sliding action of the slider 419 and the clamping guide rail 421, the slide is moved to the right. The slider 419 slides into the sliding rail 418 at the right end of the clamping guide rail 421. During the film conveying process, the tension adjusting roller 404 rises or falls, adjusting the sliding tension of the positioning clamping plate 420 to the right and the relaxation force of the PET film coating line 2 to ensure that the tension of the stretched film to be cut is uniform. Then, the two positioning clamping plates 420 adjacent to the right of the buffer roller 406 are closed, pressing the left end of the film cutting surface. After cutting, the rotating shaft 408 is started to continue rotating, which can start the drive disc 410 to continue rotating. Another limit pin 411 on it can abut against the L-shaped coupling. The short rod outer wall of the movable rod 415 with an oblique angle pushes the L-shaped linkage rod 415 to rotate, causing its long rod part to rotate upward, lifting the locking pin 414 upward, so that the sliding column 413 slides outward synchronously along the sliding guide rail 412, opening the two positioning clamps 420 adjacent to the right of the buffer roller 406, which can release the cut block film cloth. Then, the two positioning clamps 420 at the right end of the clamp guide rail 421 are merged and slide to the left along the clamp guide rail 421 to return to the left end of the matching slide rail 418. Repeating the above steps can perform continuous output cutting processing of roll film cloth. In this way, when the film cloth is stretched and unfolded to the right, the tension of the film cloth is automatically controlled and stabilized by controlling the lifting and lowering of the tension adjusting roller 404.When the flattened film fabric is ready to be cut, the two ends of the cut surface of the film fabric are clamped by the positioning clamp 420. After cutting, the right end of the left continuous matrix is ​​clamped to prevent uncontrolled tension. This completes the closed loop of continuous output and cutting of the roll film fabric. During the clamping process of the two ends of the cut surface of the film fabric, the tension adjusting roller 404 descends, which can control the output film fabric tension of the PET coating line 2, achieving dynamic and stable tension. This results in high film fabric stretching rate, avoids wrinkles or tears, and enhances safety. Example 2

[0037] Please see Figures 3-4 , Figures 7-8 and Figures 10-11 To simultaneously laser-cut flattened PET film into blocks required for subsequent processing, this invention provides a high-precision laser cutting and transfer device for PET film, which further includes a laser cutting mechanism 5. The laser cutting mechanism 5 includes a mounting top plate 501, laser guide rails 502, laser guide seats 503, and a cutting laser 504. The mounting top plate 501 is fixed to the top of the rear wall of the mounting frame 302. Five laser guide rails 502 are equidistantly fixed to the lower wall of the mounting top plate 501. Laser guide seats 503 are slidably installed inside the five laser guide rails 502. The cutting laser 504 is fixed to the lower wall of the laser guide seats 503, so that the cutting laser 504 can move back and forth to cut the film.

[0038] In operation, when the membrane fabric is flattened for cutting, five laser guide seats 503 simultaneously slide to the front end along the laser guide rail 502, then simultaneously activate the cutting laser 504. The laser guide seats 503 then slide uniformly backward along the laser guide rail 502 to the rear end, thus performing synchronous cutting by the five cutting lasers 504. This achieves simultaneous cutting of five membrane fabrics, multi-station cutting, high throughput, and can meet the high throughput requirements of downstream processes. Example 3

[0039] Please see Figures 3-4 and Figures 7-11To automatically sort and store PET film sheets in different horizontal positions, and to reduce the volume of the film sheet packaging and transfer cart 6 after folding and shrinking, thereby reducing the space occupied during transportation and storage of the block film sheets, this invention provides a high-precision laser cutting and transfer device for PET film sheets, which also includes: a film sheet packaging and transfer cart 6, which includes a fixed base frame 601, conveyor wheels 602, and a folding telescopic guide rail assembly 6. 03. Support plate 604, membrane fabric loading box 605, turntable 606, support 607, folding drive linkage 608, limiting groove 609, and limiting shaft 610. Three pairs of conveyor wheels 602 are equidistantly mounted on the lower wall of the fixed base frame 601. The rotation of the conveyor wheels 602 assists the movement of the membrane fabric dispensing and transfer cart 6, allowing the membrane fabric dispensing and transfer cart 6 to move from right to left between the mounting frames 302. Four folding telescopic guide rail groups 603 are equidistantly arranged from top to bottom on the right side of the left wall of the fixed base frame 601. Each of the folding telescopic guide rail assemblies 603 has a support plate 604 slidably mounted on its right end. A membrane fabric loading box 605 is fixedly mounted on the upper wall of the short end of the fixed base frame 601 and the upper walls of the four support plates 604. When the multi-layer extended slide rails of the folding telescopic guide rail assembly 603 slide synchronously to the left and right, the membrane fabric loading box 605 can be controlled to retract and fold or open in stages. A rotating seat 606 is fixed to the lower right wall of each of the four support plates 604. Supports 606 are fixed to the right front and rear walls of the short end of the fixed base frame 601. 7. Folding drive linkages 608 are rotatably installed in both supports 607. Limiting grooves 609 are provided in the folding drive linkages 608. Limiting shafts 610 are rotatably installed in the four rotating seats 606. The front and rear ends of the four limiting shafts 610 are slidably installed in the front limiting groove 609 and the rear limiting groove 609, respectively. The limiting shafts 610 slide in the limiting grooves 609, which can support the right side of the folding telescopic guide rail assembly 603, so that the position of the membrane loading box 605 is more stable when it moves.

[0040] Among them, such as Figure 9 As shown, the folding telescopic guide rail group 603 is divided into front and rear groups. Each group consists of multiple sliding rails that can slide and extend left and right. The four folding telescopic guide rail groups 603 are arranged from top to bottom as four-layer rails, three-layer rails, two-layer rails and one-layer rails, so that the four folding telescopic guide rail groups 603 can support the four membrane loading boxes 605 to open in stages from top to bottom.

[0041] Among them, such as Figure 4 , Figures 7-8 and Figures 10-11 As shown, the lower left corner of the fixed base frame 601 is intermittently squeezed and locked with the positioning plate 303, and the left wall of the five membrane cloth loading boxes 605 is on the same vertical line as the sliding path of the cutting laser 504, so that after the five cutting lasers 504 synchronously cut the membrane cloth, the block membrane cloth falls vertically into the membrane cloth loading box 605.

[0042] In use, the membrane fabric dispensing and transfer cart 6 is extended and conveyed into the mounting frame 302. The rotation of the conveyor wheel 602 assists the movement of the membrane fabric dispensing and transfer cart 6, allowing it to move from right to left within the mounting frame 302 until it touches the positioning plate 303. When the five membrane fabric loading boxes 605 are opened, they correspond to the cutting paths of the five cutting lasers 504. The five cutting lasers 504 simultaneously cut the membrane fabric. After cutting, the block-shaped membrane fabric falls vertically into the membrane fabric loading box 605. This achieves automatic, tiered collection of the cut block-shaped membrane fabric, reducing manual intervention and avoiding contamination, wrinkles, and tears caused by manual contact. The above cutting action is repeated until all five membrane fabric loading boxes 605 are full of membrane fabric. Then, the conveyor wheel 602 is activated to drive the membrane fabric dispensing and transfer cart 6 out of the mounting frame 302. The 02-stage transfer system features a high degree of automation, short processing time, and high efficiency. When storing or transporting membrane fabric, the folding drive linkage 608 rotates counterclockwise along the support 607, and the limiting shaft 610 slides within the limiting groove 609. As the folding drive linkage 608 rotates, the multi-layer extended slide rails of the folding telescopic guide rail assembly 603 simultaneously slide and retract to the left, making the folding drive linkage 608 parallel to the vertical plane of the fixed base frame 601. Thus, the five membrane fabric loading boxes 605 are stacked vertically in a row. In this way, the volume of the membrane fabric dispensing and transfer vehicle 6 is reduced when storing or transporting membrane fabric, improving space utilization and reducing warehousing costs. After folding, the upper and lower compartments of the membrane fabric loading box 605 are sealed, improving dustproof and anti-oxidation performance. When the membrane fabric needs to be sorted and processed later, the folding can be opened to meet the needs of multi-station sorting, and the sorting adaptability is strong.

[0043] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-precision laser cutting and transfer device for PET film, characterized in that, include: The unwinding end (1) is equipped with a PET film coating line (2) at the right end of the unwinding end (1), and a film cutting and transfer end (3) is equipped with a film fabric cutting and transfer end (3) at the right end of the PET film coating line (2). The unwinding end (1), the PET film coating line (2) and the film fabric cutting and transfer end (3) are fixedly connected. The membrane fabric cutting and transfer end (3) includes a base (301), a mounting frame (302) is fixed on the base (301), a positioning plate (303) is installed on the inner side of the lower wall of the mounting frame (302), an automatic membrane fabric stabilizing and flattening mechanism (4) is provided between the upper left wall of the base (301) and the upper part of the mounting frame (302), a laser cutting mechanism (5) is installed on the top of the rear wall of the mounting frame (302), and a membrane fabric dispensing and transfer vehicle (6) is driven inside the mounting frame (302). The unwinding end (1) is used to continuously and automatically unwind and output uncoated PET film. The PET coating line (2) is used for the pretreatment, conductive copper plating and post-treatment of PET film cloth for horizontal continuous copper coating. The membrane cutting and transfer end (3) is used to cut the PET membrane into pieces and then transfer them after the coating is completed. The automatic tensioning and flattening mechanism (4) is used to flatten the PET film after coating and automatically adjust the tension of the film output from the output end of the PET coating line (2) during the flattening process to prevent the film from being too loose or too tight, resulting in wrinkles or tears. The laser cutting mechanism (5) is used to perform synchronous laser cutting on the flattened PET film, cutting the continuous flexible film into blocks required for subsequent processing. The membrane fabric dispensing and transfer vehicle (6) has two states: extended and folded. When extended, the membrane fabric dispensing and transfer vehicle (6) can automatically sort and store block PET membrane fabrics at different horizontal positions. When folded, the membrane fabric dispensing and transfer vehicle (6) reduces its volume, which can reduce the space occupied during transportation and storage of block membrane fabrics. After folding, the upper and lower storage compartments are sealed, which is beneficial for the membrane fabric to prevent oxidation and dust.

2. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 1, characterized in that: The automatic membrane fabric tensioning and flattening mechanism (4) includes a sliding roller bracket (401), a slide block (402), a positioning pin (403), a tension adjusting roller (404), a positioning roller (405), and a buffer roller (406). The sliding roller bracket (401) is installed on the upper left side of the base (301). The slide block (402) is slidably installed in the cuboid grooves on the front and rear walls of the sliding roller bracket (401). The positioning pin (403) is installed on the inner side of the front and rear walls of the sliding roller bracket (401). The inner side of the slide block (402) is slidably connected to the positioning slide pin (403). A tension adjusting roller (404) is rotatably installed between the two slide blocks (402). A positioning roller (405) is rotatably installed between the upper left and upper right parts of the sliding roller bracket (401). A pair of buffer rollers (406) are rotatably installed opposite each other on the upper left part of the mounting frame (302). The outer walls of the two buffer rollers (406) are rotatably tangent to each other, and their tangent plane is horizontally coincident with the plane formed by the vertex line of the two positioning rollers (405).

3. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 2, characterized in that: The automatic membrane fabric tensioning and flattening mechanism (4) further includes a transmission groove (407), a rotating shaft (408), a gear (409), a drive disc (410), a limit pin (411), a sliding guide rail (412), a sliding column (413), a locking pin (414), an L-shaped linkage rod (415), a locking groove (416), a T-shaped linkage rod (417), and a matching slide rail (418). Two transmission grooves (407) are provided in both the front and rear walls of the mounting bracket (302). The positions of the four transmission grooves (407) are... The gears are arranged in pairs, one in front and one in back. Four shafts (408) are rotatably mounted in each of the left-side transmission slots (407), and two shafts (408) are rotatably mounted in each of the right-side transmission slots (407). Gears (409) are fixedly sleeved on the outer side of each shaft (408). The positions of the front and rear shafts (408) are paired, and the positions of the front and rear gears (409) are also paired. The four gears (409) in the left front and left rear sections are divided into an upper pair and a lower pair, forming a pair. Two gears (409) mesh with each other. A drive disc (410) is fixedly sleeved on the inner side of the rotating shaft (408). Two limiting pins (411) are fixedly installed on the inner side of the drive disc (410), and the two limiting pins (411) are distributed on the left and right sides of the rotating shaft (408). The center of the two limiting pins (411) is on the same straight line as the center of the rotating shaft (408). Sliding guide rails (412) are fixed on the upper inner side of the front and rear walls of the mounting bracket (302), and the sliding guide rails (412) are connected to the drive disc. (410) Each part is equipped with a sliding column (413) that is slidably installed inside the sliding guide rail (412). A locking pin (414) is fixed on the upper inner side of the sliding column (413). An L-shaped linkage rod (415) is rotatably installed on the upper inner side of the front and rear walls of the mounting bracket (302). A slot (416) is provided on the L-shaped linkage rod (415). A T-shaped linkage rod (417) is fixed on the middle inner side of the sliding column (413). A matching slide rail (418) is fixed on the inner end of the sliding column (413).

4. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 3, characterized in that: The locking pin (414) is slidably disposed in the locking groove (416). The long rod part of the T-shaped linkage rod (417) and the short rod part of the L-shaped linkage rod (415) are intermittently pressed against the outer wall of the two limiting pins (411). The sliding direction of the two sliding columns (413) that are matched with each pair of meshing gears (409) is opposite.

5. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 3, characterized in that: The automatic membrane fabric tensioning and flattening mechanism (4) also includes a sliding block (419), a positioning clamp (420), and a clamp guide rail (421). The sliding block (419) is intermittently slidably connected inside the sliding rail (418). The positioning clamp (420) is fixedly connected to the inner end face of the sliding block (419). A clamp guide rail (421) is fixed on the upper inner side of the front and rear walls of the mounting frame (302). The positions of the two clamp guide rails (421) are corresponding front and back. The two positioning clamps (420) on the right can pass through the two clamp guide rails (421) after being combined. The sliding blocks (419) at the front and rear of the positioning clamps (420) are slidably connected to the clamp guide rails (421).

6. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 1, characterized in that: The laser cutting mechanism (5) includes a mounting top plate (501), laser guide rails (502), laser guide seats (503), and a cutting laser (504). The mounting top plate (501) is fixed to the top of the rear wall of the mounting frame (302). Five laser guide rails (502) are fixed at equal intervals on the lower wall of the mounting top plate (501). Laser guide seats (503) are slidably installed in the five laser guide rails (502). The cutting laser (504) is fixed to the lower wall of the laser guide seats (503).

7. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 6, characterized in that: The membrane fabric dispensing and transfer vehicle (6) includes a fixed base frame (601), conveyor wheels (602), folding telescopic guide rail groups (603), support plates (604), membrane fabric loading boxes (605), turntables (606), supports (607), folding drive linkages (608), limiting grooves (609), and limiting shafts (610). Three pairs of conveyor wheels (602) are equidistantly mounted on the lower wall of the fixed base frame (601). Four folding telescopic guide rail groups (603) are equidistantly arranged from top to bottom on the right side of the left wall of the fixed base frame (601). Support plates (604) are slidably mounted on the right ends of each of the four folding telescopic guide rail groups (603). A membrane loading box (605) is fixedly installed on the upper wall of the short end of the fixed base frame (601) and the upper wall of the four support plates (604). A rotating seat (606) is fixedly installed on the lower right wall of the four support plates (604). A support (607) is fixedly installed on the right front wall and rear wall of the short end of the fixed base frame (601). A folding drive linkage (608) is rotatably installed in each of the two supports (607). A limit groove (609) is opened in the folding drive linkage (608). A limit shaft (610) is rotatably installed in each of the four rotating seats (606). The front and rear ends of the four limit shafts (610) are slidably installed in the front limit groove (609) and the rear limit groove (609) respectively.

8. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 7, characterized in that: The folding telescopic guide rail group (603) is divided into front and rear groups. Each group consists of multiple layers of slide rails that can slide and extend left and right. The four folding telescopic guide rail groups (603) are arranged from top to bottom as four layers of slide rails, three layers of slide rails, two layers of slide rails and one layer of slide rails.

9. The high-precision laser cutting and transfer equipment for PET film fabric according to claim 7, characterized in that: The lower left corner of the fixed base frame (601) is intermittently squeezed and locked with the positioning plate (303), and the left wall of the five membrane loading boxes (605) is on the same vertical line as the sliding path of the cutting laser (504).

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