Film product preparation and waste film recovery integrated equipment for heat insulation protective film for automobile sunroof

Abstract

The invention relates to the technical field of plastic film conveying, processing and recycling, in particular to film product preparation and waste film recycling integrated equipment for a heat insulation protective film for an automobile skylight, the equipment integrates the whole process of film roll feeding, conveying, cutting and waste film recycling, continuous operation from raw material unwinding to finished product cutting and waste synchronous recycling is achieved, the moving line is simplified, the occupied area is reduced, and the production efficiency is improved. And the automation degree and the production efficiency are greatly improved. Manual carrying is not needed in the feeding link, the charging barrel is stably transferred through the arc-shaped attaching structure, the film body is prevented from being collided and scratched, and the yield of finished products is increased. In the cutting module, the distance can be transversely adjusted through a long-edge cutter set, the distance can be longitudinally adjusted through a short-edge cutter set, modular splicing is supported, single-tool height fine adjustment is matched, the length and width self-definition of a rectangular hole groove can be achieved without replacing a mold, the grooving requirements of multi-vehicle-type electronic modules are met, and the equipment universality and the flexible production capacity are outstanding. Waste materials are conveyed, crushed and recycled, efficient cleaning treatment is achieved, and the production process is further optimized.

Description

Technical Field

[0001] This invention relates to the fields of plastic film conveying, processing, and recycling technology, and in particular to an integrated equipment for the preparation of heat-insulating protective film for automotive sunroofs and the recycling of waste film. Background Technology

[0002] Cars are a common sight in people's daily lives. However, all cars, whether high-end or low-end, have translucent windshields around their sides to protect them from wind and rain. Since all car windshields are currently made of glass, this raises a problem: when a car is driving or parked in the sun, sunlight inevitably shines through the windows into the interior, especially in the scorching summer. This makes the interior unbearably hot. To address this, Chinese invention patent CN104149451A mentions a UV-resistant heat-insulating car film. This invention provides high heat insulation and preservation while also offering UV protection.

[0003] During processing, the heat-insulating protective film needs to be cut into a shape that fits the vehicle's glass, thus requiring multiple cuts. Before cutting, the protective film is wound in a spool; after processing, it needs to be transferred to a secondary film preparation processing device.

[0004] The existing equipment conveying station and the loading station of the secondary film preparation and processing equipment are independent of each other, and manual transfer is required between the stations. This not only results in high labor intensity and significant safety hazards, but also easily leads to problems such as eccentricity of the material cylinder, misalignment of the bearing seat, and misalignment of the unwinding shaft. This causes the unwinding to deviate and the film tension to fluctuate, which can easily cause wrinkles, stretching, and coating damage to the heat insulation film. It is impossible to form a continuous automated flow, the production cycle is slow, and it is not suitable for mass production. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated equipment for the preparation of heat-insulating protective film for automotive sunroofs and the recycling of waste film, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An integrated equipment for the preparation of heat-insulating protective film for automotive sunroofs and the recycling of waste film includes a cutting module and a recycling module that works in conjunction with the cutting module. The cutting module includes a cutting frame, a film roll feeding mechanism for unwinding film from a material cylinder is installed at the bottom of the cutting frame, and a top conveying mechanism and a cutting mechanism are installed at the top of the cutting frame.

[0007] The film roll feeding mechanism includes a pair of parallel spaced feeding support plates. The top of the feeding support plates is formed with a concave feeding groove. Unwinding shafts are installed at both ends of the material cylinder, and feeding bearing seats are sleeved on the unwinding shafts. A material cylinder conveying mechanism is provided on the outside of the film roll feeding mechanism. The material cylinder conveying mechanism includes a material cylinder conveying frame, a material cylinder conveying belt is arranged along the length of the material cylinder conveying frame, and material cylinder positioning components for positioning the material cylinder are installed at equal intervals along the length of the material cylinder conveying belt. The material cylinder positioning components include material cylinder positioning seats installed at both ends of the width direction of the material cylinder conveying belt. The material cylinder positioning seats are formed with concave positioning semicircular grooves, which can lock the two ends of the material cylinder. A material cylinder transfer mechanism is provided between the material cylinder conveying mechanism and the film roll feeding mechanism. The material cylinder transfer mechanism transfers the material cylinder of the material cylinder conveying mechanism to the film roll feeding mechanism. The cutting mechanism includes a pair of parallel and spaced cutting drive side plates. A first cutting module and a second cutting module are arranged between the two cutting drive side plates. The first cutting module includes a top punching module and a bottom punching die. The top punching module includes a first punching beam and a second punching beam that are horizontally installed on the top of the cutting frame. The first punching beam and the second punching beam are longitudinally aligned. The first punching beam is located above the second punching beam. A transverse drive seat is slidably installed on the first punching beam. A punching telescopic cylinder is installed at the bottom of the transverse drive seat. A punching lifting plate is installed below the transverse drive seat. The drive end of the punching telescopic cylinder passes through the transverse drive seat and is connected to the punching lifting plate. A top punching die is installed on the punching lifting plate. The top punching die includes a tool mounting plate installed at the bottom of the punching lifting plate. The tool mounting plate has a pair of long-side tool sets and a short-side tool set perpendicular to the long-side tool sets. The two long-side tool sets form a rectangular tool set structure. Each long-side tool set includes a long-side tool mounting strip and long-side tool sliding seats installed at both ends of the long-side tool mounting strip. Multiple long-side cutting blades are arranged side-by-side at the bottom of the long-side tool mounting strip. Long-side tool sliding mounting rails arranged along the width direction of the tool mounting plate are installed at both ends of the tool mounting plate along its length. The blade sliding seat slides in conjunction with the long-side blade sliding mounting rail; each long-side cutting blade can move vertically to adjust its height, and the long-side blade sliding seat can move along the width of the blade mounting plate to adjust the distance between the two long-side blade sets; the short-side blade sets are installed between the two long-side blade mounting strips, and the inner sidewall of the long-side blade mounting strips is provided with short-side blade sliding mounting rails along its length, allowing the short-side blade sets to move along the length of the long-side mounting strips via the blade sliding mounting rails to adjust the distance between the two short-side blade sets; The short-side blade assembly includes multiple short-side blade mounting seats connected in sequence. A downwardly extending short-side cutting blade is mounted on the bottom of each mounting seat. A guide groove is longitudinally formed on the left side wall of each mounting seat, and a raised guide block is longitudinally formed on the right side wall. Adjacent short-side blade mounting seats are connected by sliding engagement with the guide groove and guide block. The outermost short-side blade mounting seat has a short-side sliding block that slides with a blade sliding mounting rail on its outer side wall. Each short-side cutting blade can move vertically to adjust its height. The maximum distance between two long-side blade assemblies does not exceed the length of the short-side blade assembly, and the maximum distance between two short-side blade assemblies does not exceed the length of the long-side blade assembly. The first cutting module also includes a waste recycling mechanism, which includes multiple vacuum adsorption holes formed on the bottom of the tool mounting plate, and a vacuum adsorption cavity formed inside the tool mounting plate that communicates with the vacuum adsorption holes; a horizontally arranged waste conveying seat is provided below the first punching beam, the waste conveying seat is located on the left side of the top punching die, and a waste conveying belt is installed along the length of the waste conveying seat, which can receive the film waste falling from the tool mounting plate; The waste recycling mechanism also includes a waste recycling frame located outside the waste conveying seat, and a plastic crusher is installed on the waste recycling frame.

[0008] The beneficial effects of this invention are: The equipment integrates the functions of protective film cutting and preparation with waste film recycling, with the cutting module and recycling module working together. At the same time, it integrates the entire process structure of film roll feeding, conveying and cutting, realizing continuous operation of heat insulation protective film from raw material unwinding, precise cutting to waste film synchronous recycling, streamlining the production line, reducing manual transfer and equipment footprint, and greatly improving the overall production automation and operation efficiency. The material cylinder lifting mechanism drives the material cylinder support seat to rise and fall via the longitudinal drive groove of the lifting stand. The arc-shaped inner groove precisely fits the shape of the unwinding bearing seat, smoothly lifting the material cylinder to complete the transfer from the material cylinder conveyor belt to the loading support plate. This eliminates the need for manual handling and alignment, reducing labor intensity and preventing material cylinder bumps and film scratches caused by manual operation. It also shortens the loading cycle and improves the overall production pace. The concave structure of the loading trough, the arc-shaped fitting design of the semi-circular ring limiting block, and the arc-shaped inner groove of the material cylinder support seat all employ flexible contact or precise limiting methods to avoid hard contact with the unwinding bearing seat and the edge of the film roll, preventing film edge wear and coating peeling. The rolling cooperation between the unwinding bearing seat and the support guide strip reduces frictional resistance, preventing static electricity from attracting dust or scratching the film surface, ensuring that the core functions of the automotive sunroof heat insulation film, such as the heat insulation coating and light transmittance, remain intact, and improving the yield of finished products. The long-side blade assembly can slide and adjust the spacing along the width direction of the blade mounting plate by means of the long-side blade sliding seats at both ends; it can flexibly adjust the left and right clearance of the rectangular groove according to different cutting width parameters, without the need for complete disassembly and mold replacement, and quickly switch the grooving specifications of multiple protective films, greatly improving the equipment's versatility and changeover efficiency. The installation dimensions for different car models can be flexibly adjusted by changing the distance between the two sets of short-side blades, thus adjusting the length of the rectangular groove. The adjustment of the long-side blades can accommodate different widths of rectangular grooves, allowing for customization of the length and width of the rectangular grooves. This covers the grooving specifications of most windshield electronic modules on the market. There is no need to replace the entire set of blades; one mold can meet the production needs of multiple car models and multiple types of heat insulation films, greatly improving flexible production capabilities. Attached Figure Description

[0009] Figure 1 A schematic diagram of an integrated equipment for membrane preparation and waste membrane recycling.

[0010] Figure 2 This is a schematic diagram of the cutting mechanism.

[0011] Figure 3 This is a schematic diagram of the cutting mechanism from another perspective.

[0012] Figure 4 A schematic diagram showing the structure of the material cylinder conveying mechanism, the material cylinder transfer mechanism, and the film roll feeding mechanism.

[0013] Figure 5 This is a schematic diagram of the film roll feeding mechanism.

[0014] Figure 6 This is a schematic diagram of the cutting mechanism from another perspective.

[0015] Figure 7 This is a structural schematic diagram of the top punching module.

[0016] Figure 8 This is a schematic diagram of the top punching die.

[0017] Figure 9 This is a schematic diagram showing the connection between the long-side cutter group and the short-side cutter group.

[0018] Figure 10 This is a schematic diagram of the long-side knife assembly.

[0019] Figure 11 This is a schematic diagram showing two states of the first height adjustment mechanism.

[0020] Figure 12 This is a schematic diagram of the short-side knife assembly.

[0021] Figure 13 This is a schematic diagram of the bottom punching die.

[0022] Figure 14 This is a partial structural diagram of the second cutting module.

[0023] Figure 15 This is a schematic diagram of the cutting blade assembly.

[0024] The reference numerals in the figures include: 1-Bullet conveying mechanism, 11-Bullet conveying frame, 111-Bullet conveyor belt, 112-Bullet positioning seat, 113-Positioning semi-circular groove, 114-Unwinding shaft, 115-Loading bearing seat, 116-Limiting edge, 12-Bullet transfer mechanism 121-Bullet transfer frame, 122-Gantry column, 123-Gantry crossarm, 124-Transfer positioning seat, 125-Transfer positioning slot, 126-Longitudinal lifting slot, 127-Support top block, 13-Pushing mechanism, 131-Pushing telescopic cylinder, 132-Horizontal push plate, 133-Horizontal push rod, 134-First lead screw transmission mechanism, 135-First longitudinal guide rail, 136-Lifting sliding seat, 137 - First pin hole, 138 - Second pin hole, 14 - Film roll feeding mechanism 141-Feeding support plate, 142-Feeding trough, 143-Semi-circular ring limiting block, 144-Feeding drive motor, 145-Supporting guide strip, 146-Feeding telescopic cylinder, 147-Arc-shaped block, 15-Barrel lifting mechanism, 151-Lifting stand, 152-Longitudinal drive groove, 153-Barrel support seat, 154-Arc-shaped inner groove, 155-Punching drive plate, 2-Cutting drive side plate, 21-First cutting module, 210-Top punching module, 211-First punching crossbeam, 212-Second punching crossbeam, 213-Transverse drive seat, 214-Punching telescopic cylinder, 215-Punching lifting plate, 216-Tool mounting plate, 217 - Top punching die, 218 - Long side cutter sliding mounting rail, 219 - Long side cutter sliding seat, 22-Long-side tool set, 220 - First height adjustment mechanism; 221 - Long side blade mounting strip; 222 - Long blade fixing seat; 223 - First mounting groove, 224 - Driven guide ramp, 225 - Long tool compression spring 226-First adjusting screw, 227-First stop bar, 228-Long side cutting blade 23-Short-side tool set, 231-Short-side cutting blade, 232-Short-side blade mounting base, 233-Guide fitting groove, 234-Guide fitting block, 235-Short-side blade sliding block, 236-Short-side blade sliding mounting rail, 237-Second height adjustment mechanism. 24-Bottom punching die, 241-Bottom punching groove, 242-First punching strip, 243-Second punching strip, 244-Long side punching groove, 245-Short side punching groove, 246-First transverse groove 247 - Second transverse groove, 248 - First filler strip, 249 - Second filler strip 25-Waste recycling mechanism, 251-Vacuum adsorption hole, 252-Waste conveying seat, 253-Waste conveying belt, 254-Waste conveying trough, 255-Bottom support plate, 256-Conveying guide rod, 257-Supporting guide rod, 258-Conveying guide sleeve, 259-Plastic crusher 26-Diaphragm conveying mechanism, 261-Conveyor tension roller, 262-Tension roller mounting arm, 263-Tightening roller mounting base, 264-Tightening telescopic cylinder, 265-Circular connecting sleeve, 266-Guide connecting rod, 267-First diaphragm transfer roller, 268-Second diaphragm transfer roller, 3-Second cutting module, 31-Bottom cutting crossbeam, 311-Pressing positioning strip, 312-Silicone contact sheet, 313-Static eliminator, 314-Top cutting beam, 315-Positioning pressing lifting cylinder, 316-Top conveyor roller, 317-Bottom conveyor roller. 32-Cut blade assembly 321-Cutting drive base, 322-Circular cutting blade, 323-Cutting drive motor, 324-Hollow groove, 325-Transmission groove, 326-Transmission base, 327-Belt drive pulley, 328-Transmission belt, 329-Transmission block. 33-Cutting sliding seat, 331-Cutting guide rail, 332-Top shock absorber, 333-Bottom shock absorber, 334-Shock absorber column. 335 - Top shock-absorbing hole, 336 - Top stop block, 337 - Shock-absorbing compression spring. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figure 1-15 As shown, an integrated equipment for the preparation of heat-insulating protective film for automotive sunroofs and the recycling of waste film includes a cutting module and a recycling module that works in conjunction with the cutting module.

[0027] The cutting module includes a cutting frame, a film roll feeding mechanism 14 for unwinding the film from the material cylinder is installed at the bottom of the cutting frame, and a cutting mechanism is installed at the top of the cutting frame.

[0028] A material cylinder conveying mechanism 1 is provided on the outside of the film roll feeding mechanism 14. The material cylinder conveying mechanism 1 includes a material cylinder conveying frame 11. A material cylinder conveying belt 111 is arranged along the length direction of the material cylinder conveying frame 111. Material cylinder positioning components for positioning the material cylinder are installed at equal intervals along the length direction of the material cylinder conveying belt 111. The material cylinder positioning components include material cylinder positioning seats 112 installed at both ends of the width direction of the material cylinder conveying belt 111. The height of the material cylinder positioning seat 112 is greater than the radius of the material cylinder with the protective film wound on it, which can prevent the protective film of the material cylinder from rubbing against the material cylinder conveying belt 111 and causing damage to the surface. The material cylinder positioning seat 112 is formed with a concave positioning semi-circular groove 113, which can lock the two ends of the material cylinder.

[0029] The equipment integrates the functions of protective film cutting and preparation with waste film recycling, with the cutting module and recycling module working together. It also integrates the entire process structure of film roll feeding, conveying and cutting, realizing continuous operation of heat insulation protective film from raw material unwinding, precise cutting to waste film synchronous recycling, simplifying the production line, reducing manual transfer and equipment footprint, and greatly improving the overall production automation and operation efficiency.

[0030] The film roll feeding mechanism 14 includes a pair of parallel and spaced feeding support plates 141. The top of the feeding support plate 141 is formed with a concave feeding groove 142. The two ends of the material cylinder are respectively installed with unwinding shafts 114. The unwinding shafts 114 are fitted with feeding bearing seats 115. The inner end of the feeding groove 142 is installed with a semi-circular ring limiting block 143 that is radially coaxial with the feeding bearing seat 115. The two ends of the outer ring wall of the feeding bearing seat 115 are formed with upright limiting edges 116, which surround the semi-circular ring limiting block 143. The concave feeding groove 142 of the feeding support plate 141, in conjunction with the semi-circular ring limiting block 143, forms a radial coaxial alignment with the feeding bearing seat 115, and is further surrounded by the limiting edge 116 of the feeding bearing seat 115 on the side of the semi-circular ring limiting block 143. The support guide strip 145 on the bottom wall of the feeding groove 142 rolls with the feeding bearing seat 115 to provide stable support for the feeding bearing seat 115. Through the guiding effect, the coaxiality during unwinding is ensured, and the radial runout of the unwinding shaft 114 is avoided, which causes the film tension to fluctuate. This further improves the uniformity and flatness of the heat insulation film unwinding.

[0031] One of the feeding support plates 141 is also equipped with a feeding drive motor 144. The drive end of the feeding drive motor 144 is coaxially connected to the unwinding shaft 114. The feeding drive motor 144 drives the unwinding shaft 114 to rotate, thereby rotating the material cylinder. The film on the material cylinder can be unwound to the cutting mechanism for punching and cutting.

[0032] A material cylinder lifting mechanism 15 is provided on the outer side of the feeding support plate 141. The material cylinder lifting mechanism 15 includes a longitudinally arranged lifting stand 151. The lifting stand 151 has a longitudinal drive groove 152 formed along its length. A lifting and moving material cylinder support 153 is provided in the longitudinal drive groove 152. The material cylinder support 153 has an arc-shaped inner groove 154 formed to support the feeding bearing seat 115. The bottom wall of the feeding groove 142 has a support guide strip 145 formed along its length. The width of the support guide strip 145 is adapted to the width of the semi-circular ring limiting block 143, and the feeding bearing seat 115 can roll in a limited manner with the support guide strip 145. The material cylinder lifting mechanism 15 drives the material cylinder support seat 153 to rise and fall via the longitudinal drive groove 152 of the lifting stand 151. The arc-shaped inner groove 154 precisely fits the shape of the unwinding shaft 114 support seat, which can smoothly lift the material cylinder to complete the transfer from the material cylinder conveyor belt 111 to the feeding support plate 141. There is no need for manual handling and alignment, which reduces labor intensity and avoids material cylinder bumps and film scratches caused by manual operation. It shortens the feeding cycle and improves the overall production cycle. The concave structure of the feeding groove 142, the arc-shaped fitting design of the semi-circular ring limiting block 143, and the arc-shaped inner groove 154 of the material cylinder support seat 153 all adopt flexible contact or precise limiting methods to avoid hard contact with the unwinding shaft 114 bearing and the edge of the film roll, thus preventing wear on the edge of the film and coating peeling. The rolling cooperation between the unwinding shaft 114 bearing and the support guide strip 145 reduces frictional resistance and prevents dust adsorption or scratches on the film surface caused by static electricity generated by sliding friction. This ensures that the core functions of the automotive sunroof heat insulation film, such as the heat insulation coating and light transmittance, are not damaged, thereby improving the yield of finished products.

[0033] Preferably, the feeding support plate 141 is further provided with a transverse drive assembly that drives the feeding bearing seat 115 to move along the length of the feeding groove 142. The transverse drive assembly includes a feeding telescopic cylinder 146 transversely mounted on the feeding support plate 141. An arc-shaped block 147 is mounted on the drive end of the feeding telescopic cylinder 146. The arc-shaped block 147 is radially aligned with the unwinding shaft 114. When the material cylinder needs to be unloaded from the feeding groove 142, the drive end of the feeding telescopic cylinder 146 extends, and the arc-shaped block 147 drives the entire assembly to retract outward. The feeding bearing seat 115 can roll and retract in the feeding groove 142, thereby allowing for the replacement of different material cylinders. This eliminates the need for manual handling, reducing the pressure of manual lifting and protecting the diaphragm, thus reducing the risk of scratches.

[0034] A material cylinder transfer mechanism 12 is provided between the material cylinder conveying mechanism 1 and the film roll feeding mechanism 14. The material cylinder transfer mechanism 12 transfers the material cylinder of the material cylinder conveying mechanism 1 to the film roll feeding mechanism 14.

[0035] The barrel transfer mechanism 12 includes a barrel transfer frame 121. The barrel transfer frame 121 is equipped with a transfer gantry that moves between the barrel conveying mechanism 1 and the film roll feeding mechanism 14. The transfer gantry includes a gantry column 122 and a gantry cross arm 123 installed between two gantry columns 122. The gantry cross arm 123 can move up and down in the vertical direction of the gantry column 122. A transfer positioning seat 124 is installed on the top of the gantry cross arm 123. The transfer positioning seat 124 is formed with a transversely penetrating transfer positioning groove 125 for accommodating the barrel. The transfer positioning groove 125 is an arc-shaped groove to facilitate the positioning of the feeding bearing seat 115. The bottom of the transfer positioning groove 125 is connected to a longitudinal lifting groove 126. A support top block 127 is slidably installed on the longitudinal lifting groove 126. The support top block 127 can be raised to be flush with the top of the transfer positioning seat 124.

[0036] After the material cylinder is conveyed to the end by the material cylinder conveying mechanism 1, the material cylinder transfer mechanism 12 operates, and the gantry frame horizontal arm 123 rises, making the transfer positioning seat 124 flush with the material cylinder conveyor belt 111. At the same time, the transfer gantry frame moves closer to the material cylinder conveyor belt 111, so that the transfer positioning seat 124 can be seamlessly connected with the material cylinder conveyor belt 111. The material cylinder can enter the transfer positioning seat 124 from the material cylinder conveyor belt 111. After the material cylinder enters the transfer positioning seat 124, it rolls along the positioning groove to the arc-shaped transfer positioning grooves 125 at both ends to complete the initial positioning. The arc-shaped groove surface of the transfer positioning groove 125 is precisely fitted with the loading bearing seat 115, restricting the movement of the material cylinder. During the lifting and lowering of the transfer gantry frame, the transverse through-hole design of the transfer positioning groove 125 effectively prevents the material cylinder from shifting or tipping over, ensuring the stability of the posture throughout the transfer process. From the automatic connection and grabbing at the end of the material conveyor to the lateral movement and precise placement into the material trough, the entire transfer process is completed entirely through automated equipment without the need for manual handling, alignment, or auxiliary fixing. This avoids the inefficiency and positioning deviation caused by manual operation, reduces the labor intensity of workers, and minimizes the risk of scratches and contamination caused by manual contact with the film roll, thereby improving the standardization and stability of the production process.

[0037] Preferably, the top of the support block 127 is flat. When positioning the material cylinder, the support block 127 descends below the top of the transfer positioning seat 124, preventing radial displacement of the material cylinder. During the lifting and lowering movement of the gantry frame boom 123, the support block 127 is at a height that matches the arc-shaped groove of the transfer positioning groove 125. If it is necessary to remove the material cylinder from the transfer positioning seat 124, the lifting cylinder in the longitudinal lifting groove 126 can lift the support block 127 to be flush with the transfer positioning seat 124. At this time, the material cylinder's loading bearing seat 115 can roll on the top surface of the transfer positioning seat 124, realizing position movement.

[0038] When the material cylinder needs to be loaded onto the film roll loading mechanism 14, the transfer gantry moves laterally and approaches the film roll loading mechanism 14. The transfer positioning seat 124 moves laterally until it is flush with the loading trough 142. The material cylinder support seat 153 of the material cylinder lifting mechanism 15 is raised and lowered until it is flush with the loading trough 142 and the transfer positioning seat 124, so that the transfer positioning seat 124, the material cylinder support seat 153 and the loading trough 142 form a conveying channel. The material cylinder can enter the loading trough 142 from the transfer positioning seat 124 through the material cylinder support seat 153, thus realizing the loading of the material cylinder.

[0039] Preferably, the transfer positioning seat 124 can be raised and lowered to be flush with the film roll feeding mechanism 14. The material cylinder conveying frame 11 is provided with a pushing mechanism 13 that pushes the material cylinder of the transfer positioning seat 124 to the film roll feeding mechanism 14. The pushing mechanism 13 includes a pushing telescopic cylinder 131 installed on the material cylinder conveying frame 11. The end of the pushing telescopic cylinder 131 is equipped with a transverse push plate 132 that is flush with the feeding trough 142. The transverse push plate 132 can move laterally between the material cylinder conveying mechanism 1 and the film roll feeding mechanism 14. The transverse push plate 132 is equipped with a plurality of parallel and spaced transverse push rods 133.

[0040] In this embodiment, the transverse push plate 132 of the pushing mechanism 13 is precisely flush with the feeding trough 142. After the transfer positioning seat 124 is raised and lowered, it is flush with the film roll feeding mechanism 14, forming a continuous transfer channel of equal height. The transverse push plate 132 drives multiple parallel and spaced transverse push rods 133 to exert force synchronously, pushing the material cylinder smoothly into the feeding trough 142 along the equal height channel. The multiple transverse push rods 133 on the transverse push plate 132 are arranged in parallel and spaced apart. When pushing, they can simultaneously act on the material cylinder or the unwinding shaft 114 bearing at its end, forming a uniform transverse thrust. The automated pushing of the pushing mechanism 13 replaces the manual handling and pushing of the material cylinder, which not only reduces the labor intensity of workers, but also avoids the risk of material cylinder falling and bumping that may occur during manual operation, thus improving the safety of the production process. At the same time, the automated pushing action is precise and controllable, eliminating positioning deviations and film damage caused by individual differences in manual operation, ensuring the consistency of material cylinder feeding for each batch, and improving the standardization level of the overall production.

[0041] It should be noted that the pushing mechanism 13 of the barrel transfer mechanism 12 and the lateral drive component of the film roll feeding mechanism 14 can cooperate with each other. After the film roll of the barrel is unwound, the lateral drive component can push the empty barrel to the barrel support 153. After the barrel support 153 is raised and lowered to a height that will not obstruct other structures, it cooperates with the barrel unloading mechanism. The transfer robot of the barrel unloading mechanism can clamp and remove the empty barrel to complete the barrel unloading. Then the barrel support 153 is raised and lowered to be flush with the feeding groove 142, and at the same time, the transfer positioning seat 124 of the barrel transfer mechanism 12 is brought close to form a feeding channel for new barrels to be fed into the feeding groove 142, realizing the automatic loading and unloading of barrels.

[0042] Furthermore, the lifting stand 151 of the cylinder lifting mechanism 15 is longitudinally equipped with a first lead screw transmission mechanism 134 and a first longitudinal guide rail 135 parallel to the first lead screw transmission mechanism 134. The cylinder support 153 is equipped with a transmission sleeve that drives the first lead screw transmission mechanism 134 and a lifting sliding seat 136 that slides with the first longitudinal guide rail 135. Together with a first servo motor, the cylinder support 153 is lifted and lowered. Similarly, the gantry column 122 of the cylinder transfer mechanism 12 is longitudinally equipped with a second lead screw transmission mechanism and a second longitudinal guide rail parallel to the second lead screw transmission mechanism. The transfer positioning seat 124 is equipped with a transmission sleeve that drives the second lead screw transmission mechanism and a lifting sliding seat 136 that slides with the second longitudinal guide rail. Together with a second servo motor, the transfer positioning seat 124 is lifted and lowered.

[0043] The outer ring wall of the feeding bearing seat 115 is formed with multiple first pin holes 137. The first pin holes 137 extend to the feeding support plate 141. The semi-circular ring limiting block 143 is formed with multiple second pin holes 138 that cooperate with the first pin holes 137. After the material cylinder with the feeding bearing seat 115 is fed into the feeding groove 142, one of the first pin holes 137 and one of the second pin holes 138 are radially and coaxially aligned. Then, a pin can be inserted to keep it locked, ensuring that the drive end of the feeding drive motor 144 is coaxially connected with the unwinding shaft 114, ensuring the stability during feeding and unwinding.

[0044] The cutting mechanism includes a pair of parallel and spaced cutting drive side plates 2, with a first cutting module 21 and a second cutting module 3 disposed between the two cutting drive side plates 2.

[0045] The windshield portion of automotive window film requires a rectangular opening to accommodate the ETC device and dashcam module on the vehicle glass. Therefore, the protective film needs to be pre-cut into a rectangular opening. The first cutting module 21 is specifically designed for precise punching and cutting of the rectangular openings for the ETC and dashcam mounting positions on the windshield window film. The second cutting module 3 is responsible for cutting the film to a fixed length according to its shape. This clear functional division and parallel, non-interfering processes significantly improve the processing speed and capacity of the entire heat insulation protective film production line, making it suitable for large-scale standardized mass production.

[0046] The first cutting module 21 includes a top punching module 310 and a bottom punching die 24. The top punching module 310 includes a first punching beam 211 and a second punching beam 212 that are horizontally mounted on the top of the cutting frame. The first punching beam 211 and the second punching beam 212 are longitudinally aligned. The first punching beam 211 is located above the second punching beam 212. A transverse drive seat 213 is slidably mounted on the first punching beam 211. A transversely arranged punching drive plate 155 is mounted on the transverse drive seat 213. A punching telescopic cylinder 214 is mounted on the transverse drive seat 213. A punching lifting plate 215 is mounted below the punching drive plate 155. The drive end of the punching telescopic cylinder 214 passes through the punching drive plate 155 and is connected to the punching lifting plate 215. A top punching die 217 is mounted at the bottom of the punching lifting plate 215.

[0047] The punching lifting plate 215 is equipped with multiple guide sleeves, and the top of the punching lifting plate 215 is equipped with multiple punching guide rods that slide with the guide sleeves. The punching guide rods are fitted with compression buffer springs, which have a buffering effect during punching to prevent damage to the cutting tool.

[0048] The transverse drive seat 213 can slide laterally along the first punching crossbeam 211 to adjust its position. It can quickly adjust the transverse position of the punching die according to the differences in the left and right positions of the mounting holes of ETC and dashcams on the windshields of different car models. Without disassembling and changing tooling, one-click micro-adjustment can adapt to the processing of rectangular pre-reserved openings of solar films for multiple car models. It is convenient to change models and debug, and the equipment has strong universality and adaptability, reducing the production and debugging costs of multiple categories. The first cutting module 21 adopts a structure in which the top punching die 217 and the bottom punching die 24 are precisely aligned. The die alignment accuracy is high, and the overlap of each punching is stable, ensuring that the rectangular pre-reserved opening size of each protective film is uniform and the position is symmetrical. When installing in the car, it can perfectly match the installation position of the vehicle electronic module without secondary trimming and rework, improving the assembly adaptability of the finished product. Both the long-side blade assembly 22 and the short-side blade assembly 23 adopt a multi-blade side-by-side combination structure, which results in more uniform force distribution and more stable blade pressure distribution compared to single-blade cutting. The edges of the punched rectangular grooves are smooth and neat, without stringing, burrs, or chipping, eliminating the need for subsequent trimming and polishing, and significantly improving the appearance quality and vehicle fit accuracy of the finished product.

[0049] Specifically, the top punching die 217 includes a tool mounting plate 216 installed at the bottom of the punching lifting plate 215. The tool mounting plate 216 is equipped with a pair of long-side tool sets 22 and a pair of short-side tool sets 23 perpendicular to the long-side tool sets 22. The two long-side tool sets 22 and the two short-side tool sets 23 form a rectangular tool set structure. The two sets of long-side tool sets 22 and the two sets of short-side tool sets 23 are perpendicular to each other and enclose to form a complete rectangular punching profile. The four-sided tool sets are independently assembled and have a clear division of labor. The enclosed shape forms a regular right-angle profile. After punching, the hole positions are sharp and the edges are straight, eliminating gaps and rounded corner deformation, and meeting the high-precision opening size standards for automotive protective films.

[0050] The long-side blade assembly 22 includes a long-side blade mounting strip 221 and long-side blade sliding seats 219 mounted at both ends of the long-side blade mounting strip 221. Multiple long-side cutting blades 228 arranged side by side are mounted on the bottom of the long-side blade mounting strip 221. Long-side blade sliding mounting rails 218 arranged along the width direction of the tool mounting plate 216 are mounted at both ends of the tool mounting plate 216 along the length direction. The long-side blade sliding seats 219 and the long-side blade sliding mounting rails 218 are slidably engaged. The cross-sections of the long-side blade sliding seats 219 and the long-side blade sliding mounting rails 218 are both T-shaped, which can prevent the long-side blade assembly 22 from falling off the tool mounting plate 216 and ensure the stability of sliding.

[0051] Preferably, the long-side blade sliding seat 219 is equipped with a T-shaped locking bolt. The T-shaped locking bolt passes through the long-side blade sliding seat 219 and abuts against the top surface of the long-side blade sliding mounting rail 218. The long-side blade sliding mounting rail 218 has graduations along its length for precise alignment of the spacing. After adjusting the distance between the long-side blade assembly 22, the T-shaped locking bolt can be rotated to lock the long-side blade sliding seat 219 and the long-side blade sliding mounting rail 218, preventing displacement of the long-side blade assembly 22 during punching and ensuring punching accuracy.

[0052] The long-side knife assembly 22 can slide and adjust the spacing along the width direction of the knife mounting plate 216 by means of the long-side knife sliding seats 219 at both ends; it can flexibly adjust the left and right net distance of the rectangular groove according to different cutting width parameters, without the need for overall disassembly and mold replacement, and quickly switch the grooving specifications of multiple protective films, greatly improving the equipment's versatility and changeover efficiency.

[0053] It should be noted that the maximum distance between the two long-side knife groups 22 shall not exceed the length of the short-side knife group 23, and the maximum distance between the two short-side knife groups 23 shall not exceed the length of the long-side knife group 22, so as to ensure that the punched shape is rectangular.

[0054] Furthermore, each long-side cutting blade 228 can move vertically to adjust its height, and the long-side blade sliding seat 219 can move along the width direction of the blade mounting plate 216 to adjust the distance between the two long-side blade groups 22; the short-side blade group 23 is installed between the two long-side blade mounting strips 221, and the inner side wall of the long-side blade mounting strip 221 is provided with a short-side blade sliding mounting rail 236 along its length direction. The short-side blade group 23 can move along the length direction of the long-side mounting strip through the blade sliding mounting rail to adjust the distance between the two short-side blade groups 23.

[0055] In this embodiment, the short-side blade assembly 23 can be freely slid and adjusted along the blade sliding mounting rail along the length of the long-side mounting strip. The distance between the two short-side blade assemblies 23 can be flexibly adjusted according to the grooving installation size of different vehicle models, that is, the length of the rectangular groove can be adjusted. In conjunction with the adjustment of the long-side blade assembly 22, it can adapt to the width of different rectangular grooves, realize the customization of the length and width of the rectangular hole groove, cover the grooving specifications of most windshield electronic modules on the market, and do not require the replacement of the entire blade assembly. One mold can meet the production needs of multiple vehicle models and multiple types of heat insulation film, and the flexible production capacity is greatly improved.

[0056] Furthermore, the long-side blade mounting strip 221 is provided with a first height adjustment mechanism 220 for adjusting the height of the long-side cutting blade 228. The first height adjustment mechanism 220 includes a cylindrical long blade fixing seat 222 formed and mounted on the top of the long-side cutting blade 228. The long-side blade mounting strip 221 is longitudinally formed with a plurality of first mounting grooves 223 that are vertically aligned with the long-side cutting blade 228. The long blade fixing seat 222 can move longitudinally in the first mounting grooves 223. The top of the long blade fixing seat 222 is formed with a driven guide slope 224. The first mounting grooves 223 are provided with a long blade compression spring 225 sleeved on the long blade fixing seat 222. The long blade compression spring 225 can elastically drive the long blade. The blade holder 222 rises in the first blade mounting groove 223 and simultaneously drives the long-side cutting blade 228 to retract. A first adjusting screw 226 is installed on the outer wall of the long-side blade mounting strip 221 and inserted into the first blade mounting groove 223. The first adjusting screw 226 is rotatably installed on the long-side blade mounting strip 221 through a screw hole. When the first adjusting screw 226 is rotatably extended inward, it can slide and cooperate with the driven guide slope 224 on the top of the long blade holder 222 to drive the long blade holder 222 to move downward and simultaneously drive the long-side cutting blade 228 to extend. A first stop strip 227 is formed at the bottom of the first blade mounting groove 223 and cooperates with the stop on the bottom surface of the long blade holder 222.

[0057] In this embodiment, when the distance between the two short-side blade groups 23 is shortened, some of the excess long-side cutting blades 228 will hinder the overall punching to form a rectangular shape. At this time, it is necessary to raise the excess long-side cutting blades 228 to prevent them from descending and cutting into the protective film area outside the rectangular groove. To this end, the first height adjustment mechanism 220 works, rotating the corresponding first adjustment screw 226 outward. The first adjustment screw 226 and the driven guide inclined surface 224 on the top of the long blade fixing seat 222 form a wedge-tightening transmission structure, converting the rotational motion of the first adjustment screw 226 into the vertical linear motion of the long blade fixing seat 222. The first adjustment screw 226 gradually extends outward, and under the elastic drive of the long blade compression spring 225, the long blade fixing seat 222 rises in the first mounting blade groove 223. At this time, the long-side cutting blades 228 retract synchronously to avoid the exposed blade edge scratching the film material, operators, or colliding with other components.

[0058] Conversely, when the corresponding long-side cutting blade 228 is extended, the corresponding first adjusting screw 226 is rotated inward. The first adjusting screw 226 and the driven guide slope 224 on the top of the long blade fixing seat 222 form a wedge-tightening transmission structure, converting the rotational motion of the first adjusting screw 226 into the vertical linear motion of the long blade fixing seat 222. The long blade fixing seat 222 descends in the first mounting groove 223, at which time the long-side cutting blade 228 extends synchronously until the first stop strip 227 at the bottom of the first mounting groove 223 forms a precise stop fit with the bottom surface of the long blade fixing seat 222, strictly limiting the maximum downward stroke of the long blade fixing seat 222, ensuring that the extension size of each long-side cutting blade 228 is the same, forming an aligned structure, and ensuring that the cut of the entire rectangular hole is flat and consistent.

[0059] In addition, each long-side cutting blade 228 is equipped with an independent first height adjustment mechanism 220, which can compensate for the height of a single long-side cutting blade 228 based on the wear of its blade edge, without the need for overall blade assembly adjustment, thus greatly extending the overall service life of the edge blade assembly 22. At the same time, it can fine-tune the cutting depth of the corresponding blade according to the local thickness fluctuations and coating hardness differences of the heat insulation film, ensuring that the cut of the rectangular hole around the entire circle is flat and consistent, and avoiding cutting defects caused by uneven film material conditions.

[0060] Specifically, the short-side blade assembly 23 includes multiple short-side blade mounting seats 232 connected in sequence. A short-side cutting blade 231 extending downward is mounted on the bottom of the short-side blade mounting seat 232. A guide fitting groove 233 is longitudinally formed on the left side wall of the short-side blade mounting seat 232, and a protruding guide fitting block 234 is longitudinally formed on the right side wall of the short-side blade mounting seat 232. Two adjacent short-side blade mounting seats 232 are connected by sliding engagement with the guide fitting groove 233 and the guide fitting block 234. The outermost short-side blade mounting seat 232 has a short-side blade sliding block 235 mounted on its outer side wall, which slides in engagement with the blade sliding mounting rail.

[0061] In this embodiment, the short blade mounting base 232, through the sliding splicing structure of the guide fitting groove 233 and the guide fitting block 234, can flexibly increase or decrease the number of short blade mounting bases 232 according to the short side cutting length, realizing modular combination. The precise fitting and cooperation of adjacent short blade mounting bases 232 forms a long strip-shaped short side blade assembly 23, which can be installed between two long side blade assemblies 22, ensuring that the short side cutting blade 231 forms a continuous and flat cutting edge after splicing, avoiding misalignment or missed cuts caused by splicing gaps, adapting to the length size requirements of different rectangular slots, and improving the versatility and expandability of the equipment. In addition, the modular splicing design of the short side blade assembly 23 allows a single short blade mounting base 232 to be disassembled and replaced independently without disassembling the entire short side blade assembly 23, greatly reducing maintenance difficulty.

[0062] Preferably, both the guide fitting groove 233 and the guide fitting block 234 have isosceles trapezoidal cross sections. After two adjacent short knife mounting seats 232 are spliced, they will not fall off laterally, making the structure more stable. When the guide fitting groove 233 and the guide fitting block 234 slide longitudinally, they provide bidirectional guidance and limitation for the short knife mounting seat 232. When the long strip-shaped short-side knife assembly 23 slides in contact with the short-side knife sliding mounting rail 236 of the long-side knife mounting strip 221, it will not bend or shift.

[0063] The short blade mounting base 232 is also provided with a second height adjustment mechanism 237 for adjusting the height of the short side cutting blade 231.

[0064] In this embodiment, when the distance between the two long-side blade groups 22 is shortened, some of the excess short-side cutting blades 231 will hinder the overall punching and formation of a rectangular shape. At this time, it is necessary to raise the excess short-side cutting blades 231 to prevent them from descending and cutting into the protective film area outside the rectangular groove. For this purpose, the second height adjustment mechanism 237 is activated. The structure of the second height adjustment mechanism 237 is similar to that of the first height adjustment mechanism 220. Both achieve height adjustment through a blade fixing seat, adjusting screw, compression spring, and guide slope. Therefore, those skilled in the art can undoubtedly deduce the structural principle of the height adjustment mechanism based on the first height adjustment mechanism 220. The specific structure will not be described in detail here.

[0065] Each short-side cutting blade 231 is equipped with an independent second height adjustment mechanism 237, which can individually fine-tune the height based on blade wear or localized differences in film material conditions. Simultaneously, the guiding and limiting function of the splicing structure ensures that the height adjustments of adjacent short blades are coordinated, avoiding height differences in the blade edges caused by individual blade adjustments. Combined with the micron-level adjustment precision consistent with the first height adjustment mechanism 220, it ensures a smooth cut along the entire short side, forming a precise match with long-side cutting and improving the product cutting qualification rate. The second height adjustment mechanism 237 continues the convenient operation of the rotary screw, and with the scale markings, it can quickly complete the height calibration of a single blade or the entire set of blades, shortening changeover and debugging time. It can be operated without professional skills, adapting to multi-specification production needs and further reducing changeover and maintenance costs.

[0066] Specifically, the bottom punching die 24 includes a bottom punching groove 241 formed on the top of the second punching crossbeam 212. A pair of first punching strips 242 and second punching strips 243 are installed in the bottom punching groove 241. The tops of the first punching strips 242 and the second punching strips 243 are flush with the top of the second punching crossbeam 212. The first punching strip 242 is formed with a long-side punching groove 244 that cooperates with the long-side blade assembly 22. The second punching strip 243 is formed with a short-side punching groove 245 that cooperates with the short-side blade assembly 23. The first punching strip 242 can move along the width direction of the bottom punching groove 241 to adjust its position. The second punching strip 243 can move along the length direction of the bottom punching groove 241 to adjust its position. The travel of the first punching strip 242 is the same as the travel of the long-side blade sliding seat 219. The travel of the second punching strip 243 is the same as the travel of the short-side blade sliding seat.

[0067] In this embodiment, the first punching strip 242 and the second punching strip 243 within the bottom punching groove 241 can be adjusted by sliding, and the bottom adjustment stroke is perfectly matched and synchronized with the adjustment stroke of the upper long and short side blade groups 23. When the upper blade adjusts the length and width of the rectangular opening, the lower die groove can move synchronously to align. This ensures that the long side cutting blade 228 is aligned with the long side punching groove 244 and the short side cutting blade 231 is aligned with the short side punching groove 245, with the upper and lower dies precisely coaxial. During punching, the blade can enter the lower die groove, and the precise groove position can limit the downward stroke of the blade and the cutting gap, achieving clean and neat separation and cutting of the flexible film. The four edges of the rectangular groove are regular, the cut is smooth and burr-free, and there is no adhesion or stringing, greatly improving the appearance quality of the opening and the yield rate of the finished product.

[0068] Furthermore, the top of the second punching crossbeam 212 is formed with a first transverse groove 246 and a second transverse groove 247 in a cross structure. The first transverse groove 246 and the second transverse groove 247 are respectively connected to the bottom punching groove 241. The first transverse groove 246 is arranged laterally from left to right, and the second transverse groove 247 is arranged laterally from front to back. The width of the first transverse groove 246 is the same as the width of the bottom punching groove 241, and the width of the second transverse groove 247 is the same as the length of the bottom punching groove 241. A first filler strip 248 is slidably installed in the first transverse groove 246, and a second filler strip 249 is slidably installed in the second transverse groove 247. The top surfaces of the first filler strip 248 and the second filler strip 249 are flush with the top of the second punching crossbeam 212, forming a planar structure to support the protective film to be punched and ensure its flatness during punching.

[0069] In this implementation, the width of the first transverse groove 246 and the second transverse groove 247 matches the stroke of the corresponding adjustment direction, providing sufficient sliding clearance space for the position adjustment of the first punching strip 242 and the second punching strip 243. The first filler strip 248 and the second filler strip 249 can slide synchronously to compensate for the missing groove after the position adjustment of the first punching strip 242 and the second punching strip 243; no matter how the first punching strip 242 and the second punching strip 243 are moved or their dimensions are changed, the first filler strip 248 and the second filler strip 249 can fill the gap in the groove, and the overall top surface is completely flush with the crossbeam table surface, eliminating the residual groove gaps and uneven steps after adjustment, and achieving full coverage planar support for the entire cutting station.

[0070] It should be noted that the first filling strip 248 and the second filling strip 249 slide in conjunction with the corresponding first transverse groove 246 and the second transverse groove 247, and can be adjusted automatically by the drive of the telescopic cylinder, or by manual push and pull.

[0071] Furthermore, the first cutting module 21 also includes a waste recycling mechanism 25, which includes multiple vacuum adsorption holes 251 formed on the bottom of the cutter mounting plate 216. The cutter mounting plate 216 has a vacuum adsorption cavity formed inside that communicates with the vacuum adsorption holes 251. The bottom of the cutter mounting plate 216 is densely covered with vacuum adsorption holes 251 and has a built-in vacuum adsorption cavity. At the moment the rectangular punching is completed, the vacuum negative pressure can firmly adsorb the small rectangular pieces of waste material that have been cut off. The negative pressure is used to pick up the material synchronously with the punching action, so as to avoid the waste material from sticking to the film surface, getting stuck in the gap between the cutter edges, or being displaced with the roll material. Below the first punching beam 211, a horizontally arranged waste conveyor seat 252 is provided. The waste conveyor seat 252 is located to the left of the top punching die 217. A waste conveyor belt 253 is installed along the length of the waste conveyor seat 252. The waste conveyor belt 253 can receive the film waste falling from the cutter mounting plate 216. The waste recycling mechanism 25 also includes a waste recycling frame set outside the waste conveyor seat 252. The waste recycling frame is equipped with a plastic crusher 259. After the vacuum in the cutter mounting plate 216 is released, the waste falls precisely onto the surface of the waste conveyor belt 253 of the waste conveyor seat 252 below. The waste conveyor belt 253 receives the falling material throughout the process, and the waste will not splash around or accumulate in the gaps of the cutting station or the corners of the frame, keeping the cutting area clean and tidy, reducing the frequency of manual cleaning, and avoiding equipment jamming caused by waste getting stuck in the transmission mechanism. The waste conveyor 252 is located close to the left side of the first cutting module 21 and is integrated with the punching station. The waste transfer path is extremely short, eliminating the need for long-distance transfer across stations. It is equipped with an independent waste recycling frame and plastic crusher 259 on the outside. The waste corners and small-hole waste pieces collected by the waste conveyor belt 253 are uniformly transported to the crusher for centralized crushing. The crushed material is neat and easy to store, transfer and recycle for secondary granulation and reuse, which greatly reduces raw material waste, complies with the workshop's environmental protection production standards, and reduces waste transportation and disposal costs.

[0072] Furthermore, the cutting drive side plate 2 is formed with a waste conveying trough 254. One end of the waste conveying seat 252 passes through the waste conveying trough 254 laterally and extends outward. A bottom support plate 255 is installed at the bottom of the waste conveying seat 252. A transversely arranged conveying guide rod 256 is installed at the bottom of the bottom support plate 255. An upright support guide rod 257 is installed below the conveying guide rod 256. A conveying guide sleeve 258 coaxially aligned with the support guide rod 257 is installed at the top of the support guide rod 257. The support guide rod 257 and the conveying guide sleeve 258 slide in cooperation. Side mounting plates are installed on both sides of the long side of the waste conveying seat 252. The top of the side mounting plates extends to the first punching crossbeam 211. A movable guide groove is formed on the side wall of the first punching crossbeam 211 along the length direction. A movable sliding block that slides in cooperation with the movable guide groove is installed on the side mounting plates.

[0073] In this embodiment, when the lateral drive seat 213, which is slidably mounted on the first punching crossbeam 211, needs to be adjusted laterally, to prevent collision with the waste conveying seat 252 on which the waste conveying belt 253 is mounted, the bottom support plate 255 can be dragged laterally. The conveying guide rod 256 at the bottom of the bottom support plate 255 and the conveying guide sleeve 258 mounted on the top of the support guide rod 257 slide in cooperation to adjust the lateral position of the waste conveying seat 252. At the same time, the moving sliding block of the side-mounted upright plate can slide synchronously along the moving guide groove of the first punching crossbeam 211 to ensure the stability of the movement. After the position is adjusted, a certain distance is maintained between the waste conveying belt 253 and the lateral drive seat 213. On the one hand, collision will not occur, and on the other hand, when unloading the punched waste, the moving distance of the lateral drive seat 213 will not be too large, so as to increase the efficiency of waste unloading and not affect the subsequent protective film punching.

[0074] In addition, the waste conveying seat 252 extends outward through the waste conveying trough 254 of the cutting drive side plate 2, and the side mounting plate is arranged to fit the side wall of the crossbeam. The overall structure is embedded in the gap of the cutting module, without occupying additional external working space, and is compatible with the layout of components such as punching die, vacuum adsorption mechanism, and crusher. The guide trajectory of each moving part is precise and controllable, and there is no interference with the cutting action and die adjustment action during operation, ensuring the smooth operation of the multi-mechanism coordination of the whole machine.

[0075] It should be noted that the first punching crossbeam 211 is equipped with a linear module and a linear guide rail along its length. The transverse drive seat 213 is slidably engaged with the linear guide rail through a sliding seat. The drive end of the linear module is connected to the transverse drive seat 213, thereby realizing the lateral position adjustment of the top punching module 310 and the unloading of waste material.

[0076] The cutting frame is also equipped with a film conveying mechanism 26. The film conveying mechanism 26 includes a conveying tension roller 261 disposed between two cutting drive side plates 2, and tension roller mounting arms 262 installed at both ends of the conveying tension roller 261. The cutting drive side plate 2 is equipped with a tension roller mounting seat 263. The other end of the tension roller mounting arm 262 is rotatably connected to the tension roller mounting seat 263. The cutting drive side plate 2 is equipped with an inclined tension telescopic cylinder 264. The cylinder body of the tension telescopic cylinder 264 is rotatably mounted on the cutting drive side plate 2. The driving end of the tension telescopic cylinder 264 is equipped with a circular connecting sleeve 265. The tension roller mounting arm 262 is equipped with a guide connecting rod 266 rotatably connected to the circular connecting sleeve 265.

[0077] In this embodiment, the inclined tensioning and untensioning cylinder 264 is linked to the tensioning roller mounting arm 262 via the circular connecting sleeve 265 and the guide connecting rod 266, driving the conveying tensioning roller 261 to perform oscillating fine adjustments. Under the condition of continuous feeding and intermittent punching of the protective film, it can automatically compensate for the difference in film feeding speed and the fluctuation of the cycle, and adjust the film tension. It effectively avoids the accumulation of loose material due to excessively fast film feeding and the stretching deformation due to excessively tight film feeding, and achieves constant tension and stable conveying.

[0078] The first cutting module 21 also includes a first film transfer roller 267 and a second film transfer roller 268 that cooperate with the film conveying mechanism 26. The first film transfer roller 267 and the second film transfer roller 268 are respectively located above the conveying tension roller 261, wherein the second film transfer roller 268 is located outside the first film transfer roller 267 and is lower than the first film transfer roller 267. The first film transfer roller 267 is flush with the second punching crossbeam 212. In this embodiment, the first transfer roller and the second film transfer roller 268 are arranged in a staggered manner, forming a smooth transition bending film path. The first film transfer roller 267 is flush with the second punching crossbeam 212, so that the film surface to be punched is precisely attached to the cutting reference plane, that is, it enters the second punching crossbeam 212 laterally, ensuring that the film material is completely flattened and horizontally positioned before entering the punching station, providing a stable base surface for high-precision punching of rectangular grooves.

[0079] Specifically, a protective film conveying component is arranged between the second cutting module 3 and the first cutting module 21. This component includes a top conveying roller 316 and a bottom conveying roller 317 spaced apart. The ends of the top and bottom conveying rollers 316 and 317 are driven by gear meshing. The top conveying roller 316 is the driving roller, rotating under the drive of a motor to synchronously rotate the bottom conveying roller 317, thus advancing the protective film from the first cutting module 21 into the second cutting module 3. The top and bottom conveying rollers 316 and 317 are spaced apart and press against each other, forming a flexible clamping and conveying structure. This structure can smoothly clamp the heat-insulating protective film after it has passed through the grooves in the first cutting module 21, flattening and limiting its position throughout the transfer process between the modules. Furthermore, under the spaced rotational transmission of the top and bottom conveying rollers 316 and 317, the heat-insulating protective film can be advanced to the second cutting module 3.

[0080] The second cutting module 3 includes a bottom cutting beam 31 flush with the second punching beam 212. A longitudinally movable downward positioning strip 311 is installed above the bottom cutting beam 31, and a silicone contact sheet 312 that contacts the membrane is installed at the bottom of the downward positioning strip 311. An anti-static rod 313 is installed at the bottom of the third punching beam. A top cutting beam 314 is installed above the bottom cutting beam 31, and a positioning downward lifting cylinder 315 is installed on the front side of the top cutting beam 314. The drive end of the positioning downward lifting cylinder 315 is connected to the downward positioning strip 311. The downward positioning strip 311 is independently driven downward by the positioning downward lifting cylinder 315, and the silicone contact sheet 312 at the bottom of the downward positioning strip 311 flexibly contacts the membrane surface. The soft contact of the silicone material does not damage the heat insulation film coating or leave indentations, and can simultaneously and smoothly press and fix the protective film throughout its entirety. This is done in conjunction with the bottom cutting beam 31 being flush with the preceding workstation. In addition, the bottom of the third punching crossbeam is pre-installed with an electrostatic eliminator 313, which neutralizes and eliminates static electricity accumulated on the film surface in real time during the high-speed friction film feeding and cutting process; effectively preventing static electricity from attracting dust and lint to adhere to the film surface, while preventing static electricity from causing film adhesion and unstable positioning.

[0081] Furthermore, a cutting blade assembly 32 is arranged on the rear side of the top cutting beam 314. The cutting blade assembly 32 includes a cutting drive seat 321 that moves along the length of the top cutting beam 314. The cutting drive seat 321 is equipped with a circular cutting blade 322 and a cutting drive motor 323 that drives the circular cutting blade 322 to rotate. In this embodiment, after the protective film to be cut is pressed and positioned, aligned with the reference, the cutting drive seat 321 can move laterally along the entire length of the top cutting beam 314. The high-speed rotation of the blade realizes the rolling cut operation, driving the circular cutting blade 322 to complete the continuous fixed-length cutting of protective films of different widths. The cutting accuracy is further improved.

[0082] A cutting drive mechanism is arranged along the length of the top cutting beam 314 to drive the cutting drive seat 321 to move laterally. The top cutting beam 314 has a hollow groove 324 formed along its length. Transmission grooves 325, communicating with transmission grooves 325, are formed at both ends of the top cutting beam 314 at the bottom. The cutting drive mechanism includes a transmission seat 326 installed in the transmission groove 325. A belt drive pulley 327 is mounted on the transmission seat 326. A transmission belt 328 is sleeved between the two belt drive pulleys 327. One long side of the transmission belt 328 extends through the hollow groove 324, and the other long side of the transmission belt 328 is located below the top cutting beam 314. A transmission block 329 is installed on the bottom long side of the transmission belt 328. A drive motor is installed on one of the transmission seats 326, driving the belt drive pulley 327 mounted on the transmission seat 326 to move the transmission belt 328.

[0083] In this embodiment, the transmission wheel and transmission groove 325 are embedded in the bottom of both ends of the crossbeam, and communicate with the hollow groove 324 to form a closed transmission space. This can isolate workshop dust and film debris from entering the transmission fit gap, prevent belt jamming, slippage, wear and aging, reduce the probability of failure, reduce the workload of daily cleaning and maintenance, and extend the service life of transmission components. The entire cutting drive mechanism and blade holder assembly are modularly integrated into the crossbeam, occupying little space and with a neat layout. The transmission alignment is simple, and disassembly and maintenance are convenient. It can be precisely linked with the front-end conveying, pressing, and static elimination mechanisms to realize automated continuous cutting operations.

[0084] A cutting slide seat 33 is connected to the top of the cutting drive seat 321. The cutting slide seat 33 and the cutting drive seat 321 are movably connected through a shaft hole. A cutting guide rail 331 for the lateral movement of the cutting slide seat 33 is installed on the top cutting crossbeam 314. A transmission block 329 is connected to the cutting slide seat 33. A top shock absorber 332 is installed at the bottom of the cutting slide seat 33. A device coaxially aligned with the top shock absorber 332 and slidably inserted into the top shock absorber is installed on the top of the cutting drive seat 321. The bottom damping cylinder 333 of the vibration cylinder 332 is equipped with a damping column 334. The top damping cylinder 332 is formed with a top damping hole 335 through which the damping column 334 passes. The top of the damping column 334 is equipped with a top stop block 336 that cooperates with the stop of the top damping hole 335. The bottom damping cylinder 333 is equipped with a damping compression spring 337 sleeved on the damping column 334. The top of the damping compression spring 337 is connected to the top damping cylinder 332.

[0085] In this embodiment, the cutting slide block 33 slides laterally in a straight line relying on the dedicated cutting guide rail 331, and is stably pulled by the transmission block 329, resulting in low resistance throughout the movement. The top shock absorber 332 and the bottom shock absorber 333 are coaxially nested together, forming an integrated elastic damping unit with the shock absorber column 334, the top stop block 336, and the shock absorber compression spring 337. During the cutting operation, the vibration of the motor, the friction impact of the circular blade cutting, and the jerking force during start-stop movement can all be quickly absorbed and attenuated by the elastic structure of the spring. The shock absorber compression spring 337 provides a constant and gentle elastic preload, ensuring that the circular blade always contacts the film surface in a flexible, close-fitting state; this prevents excessive blade pressure from cutting through the substrate and damaging the heat insulation coating, while also avoiding insufficient pressure that results in incomplete cuts and burr residue. Simultaneously, the buffer structure reduces hard impacts from the blade, lowers the blade wear rate, and extends the replacement cycle of the circular cutting blade 322. The top stop block 336 at the top of the shock-absorbing column 334 and the top shock-absorbing hole 335 form a limiting fit to control the maximum range of shock absorption extension and contraction; to avoid excessive compression of the spring, component detachment or collision jamming, to ensure the normal operation of the shock absorption function, and to ensure the structural safety and stability during high-speed moving and cutting, and to reduce the potential for mechanical failure.

[0086] In summary, the present invention possesses the excellent characteristics described above, which enhances its effectiveness in use compared to previous technologies, making it a highly practical product.

[0087] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. An integrated equipment for preparing and recycling waste film of heat-insulating protective film for automotive sunroofs, comprising a cutting module and a recycling module cooperating with the cutting module, characterized in that: The cutting module includes a cutting frame, a film roll feeding mechanism for unwinding the film from the material cylinder is installed at the bottom of the cutting frame, and a cutting mechanism is installed at the top of the cutting frame; The film roll feeding mechanism includes a pair of parallel spaced feeding support plates. The top of the feeding support plates is formed with a concave feeding groove. Unwinding shafts are installed at both ends of the material cylinder, and feeding bearing seats are sleeved on the unwinding shafts. A material cylinder conveying mechanism is provided on the outside of the film roll feeding mechanism. The material cylinder conveying mechanism includes a material cylinder conveying frame, a material cylinder conveying belt is arranged along the length of the material cylinder conveying frame, and material cylinder positioning components for positioning the material cylinder are installed at equal intervals along the length of the material cylinder conveying belt. The material cylinder positioning components include material cylinder positioning seats installed at both ends of the width direction of the material cylinder conveying belt. The material cylinder positioning seats are formed with concave positioning semicircular grooves, which can lock the two ends of the material cylinder. A material cylinder transfer mechanism is provided between the material cylinder conveying mechanism and the film roll feeding mechanism. The material cylinder transfer mechanism transfers the material cylinder of the material cylinder conveying mechanism to the film roll feeding mechanism. The cutting mechanism includes a pair of parallel and spaced cutting drive side plates. A first cutting module and a second cutting module are arranged between the two cutting drive side plates. The first cutting module includes a top punching module and a bottom punching die. The top punching module includes a first punching beam and a second punching beam that are horizontally installed on the top of the cutting frame. The first punching beam and the second punching beam are longitudinally aligned. The first punching beam is located above the second punching beam. A transverse drive seat is slidably installed on the first punching beam. A punching telescopic cylinder is installed at the bottom of the transverse drive seat. A punching lifting plate is installed below the transverse drive seat. The drive end of the punching telescopic cylinder passes through the transverse drive seat and is connected to the punching lifting plate. A top punching die is installed on the punching lifting plate. The top punching die includes a tool mounting plate installed at the bottom of the punching lifting plate. The tool mounting plate has a pair of long-side blade sets and a short-side blade set perpendicular to the long-side blade sets. The two long-side blade sets form a rectangular blade assembly. Each long-side blade set includes a long-side blade mounting strip and long-side blade sliding seats installed at both ends of the long-side blade mounting strip. Multiple long-side cutting blades are arranged side-by-side at the bottom of the long-side blade mounting strip. Long-side blade sliding mounting rails, arranged along the width direction of the tool mounting plate, are installed at both ends of the tool mounting plate along its length. The moving base slides in conjunction with the long-side blade sliding mounting rail; each long-side cutting blade can move vertically to adjust its height, and the long-side blade sliding base can move along the width of the blade mounting plate to adjust the distance between the two long-side blade groups; the short-side blade group is installed between the two long-side blade mounting strips, and the inner side wall of the long-side blade mounting strip is provided with a short-side blade sliding mounting rail along its length. The short-side blade group can move along the length of the long-side blade mounting strip via the short-side blade sliding mounting rail to adjust the distance between the two short-side blade groups. The short-side blade assembly includes multiple short-side blade mounting seats connected in sequence. A downwardly extending short-side cutting blade is mounted on the bottom of each mounting seat. A guide groove is longitudinally formed on the left side wall of each mounting seat, and a raised guide block is longitudinally formed on the right side wall. Adjacent short-side blade mounting seats are connected by sliding engagement with the guide groove and guide block. The outermost short-side blade mounting seat has a short-side blade sliding block that slides along a sliding mounting rail. Each short-side cutting blade can move vertically to adjust its height. The maximum distance between two long-side blade assemblies does not exceed the length of the short-side blade assembly, and the maximum distance between two short-side blade assemblies does not exceed the length of the long-side blade assembly. The first cutting module also includes a waste recycling mechanism, which includes multiple vacuum adsorption holes formed on the bottom of the tool mounting plate, and a vacuum adsorption cavity formed inside the tool mounting plate that communicates with the vacuum adsorption holes; a horizontally arranged waste conveying seat is provided below the first punching beam, the waste conveying seat is located on the left side of the top punching die, and a waste conveying belt is installed along the length of the waste conveying seat, which can receive the film waste falling from the tool mounting plate; The waste recycling mechanism also includes a waste recycling frame located outside the waste conveying seat, and a plastic crusher is installed on the waste recycling frame.

2. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 1, characterized in that: The inner end of the feeding trough is equipped with a semi-circular ring limiting block that is radially coaxially aligned with the feeding bearing seat. The outer ring wall of the feeding bearing seat has raised limiting edges formed on both ends, which surround the semi-circular ring limiting block. One of the feeding support plates is also equipped with a feeding drive motor, the drive end of which is coaxially connected to the unwinding shaft. A cylinder lifting mechanism is provided on the outer side of the feeding support plate. The cylinder lifting mechanism includes a longitudinally arranged lifting stand, which has a longitudinal drive groove formed along its length. A cylinder support seat for lifting and moving is provided within the longitudinal drive groove, and the cylinder support seat has an arc-shaped inner groove that supports the feeding bearing seat. The bottom wall of the feeding trough has a support guide strip formed along its length. The width of the support guide strip is adapted to the width of the semi-circular ring limiting block, allowing the feeding bearing seat to roll in a limited manner with the support guide strip. The feeding support plate is also equipped with a transverse drive assembly that drives the feeding bearing seat to move along the length of the feeding trough.

3. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 2, characterized in that: The barrel transfer mechanism includes a barrel transfer frame, on which a transfer gantry is mounted that moves between the barrel conveying mechanism and the film roll feeding mechanism. The transfer gantry includes gantry columns and a gantry cross arm installed between two gantry columns. The gantry cross arm can move up and down in the vertical direction of the gantry columns. A transfer positioning seat is installed at the top of the gantry cross arm. The transfer positioning seat has a transversely penetrating transfer positioning groove for accommodating the barrel. The transfer positioning groove can hold the feeding bearing seat at the end of the barrel. A longitudinal lifting groove is connected to the bottom of the transfer positioning groove. A support block is slidably installed in the longitudinal lifting groove. The support block can be raised to be flush with the top of the transfer positioning seat.

4. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 3, characterized in that: The transfer positioning seat can be raised and lowered to be flush with the film roll feeding mechanism. The material cylinder conveying frame is equipped with a pushing mechanism that pushes the material cylinder of the transfer positioning seat to the film roll feeding mechanism. The pushing mechanism includes a pushing telescopic cylinder installed on the material cylinder conveying frame. The end of the pushing telescopic cylinder is equipped with a transverse push plate that is flush with the feeding trough. The transverse push plate can move laterally between the material cylinder conveying mechanism and the film roll feeding mechanism. The transverse push plate is equipped with a plurality of transverse push rods arranged in parallel at intervals.

5. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 4, characterized in that: The long-side blade mounting strip is equipped with a first height adjustment mechanism for adjusting the height of the long-side cutting blade. The first height adjustment mechanism includes a cylindrical long blade fixing seat formed and installed on the top of the long-side cutting blade. The long-side blade mounting strip is longitudinally formed with multiple first mounting slots vertically aligned with the long-side cutting blade. The long blade fixing seat can move longitudinally in the first mounting slots. A driven guide slope is formed on the top of the long blade fixing seat. A long blade compression spring is provided in the first mounting slot and sleeved on the long blade fixing seat. The long blade compression spring can elastically drive the long blade fixing seat to rise in the first mounting slot and simultaneously drive the long-side cutting blade to retract. A first adjusting screw is installed on the outer wall of the long-side blade mounting strip and inserted into the first mounting slot. The first adjusting screw is rotatably installed on the long-side blade mounting strip through a screw hole. When the first adjusting screw is rotatably extended inward, it can slide and cooperate with the driven guide slope on the top of the long blade fixing seat to drive the long blade fixing seat to move downward and simultaneously drive the long-side cutting blade to extend. A first stop strip is formed at the bottom of the first mounting slot and cooperates with the stop on the bottom surface of the long blade fixing seat.

6. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 5, characterized in that: The bottom punching die includes a bottom punching groove formed on the top of the second punching beam. A pair of first punching strips and second punching strips are installed in the bottom punching groove. The tops of the first punching strips and the second punching strips are flush with the top of the second punching beam. The first punching strip is formed with a long-side punching groove that cooperates with the long-side blade assembly. The second punching strip is formed with a short-side punching groove that cooperates with the short-side blade assembly. The first punching strip can move along the width direction of the bottom punching groove to adjust its position. The second punching strip can move along the length direction of the bottom punching groove to adjust its position. The moving stroke of the first punching strip is the same as the moving stroke of the long-side blade sliding seat. The moving stroke of the second punching strip is the same as the moving stroke of the short-side blade sliding seat.

7. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 6, characterized in that: The top of the second punching crossbeam is formed with a first transverse groove and a second transverse groove in a cross structure. The first transverse groove and the second transverse groove are respectively connected to the bottom punching groove. The first transverse groove is arranged laterally from left to right, and the second transverse groove is arranged laterally from front to back. The width of the first transverse groove is the same as the width of the bottom punching groove, and the width of the second transverse groove is the same as the length of the bottom punching groove. A first filler strip is slidably installed in the first transverse groove, and a second filler strip is slidably installed in the second transverse groove. The top surfaces of the first filler strip and the second filler strip are flush with the top of the second punching crossbeam.

8. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 7, characterized in that: The cutting drive side plate is formed with a waste conveying trough. One end of the waste conveying seat passes through the waste conveying trough laterally and extends outward. A bottom support plate is installed at the bottom of the waste conveying seat. A horizontally arranged conveying guide rod is installed at the bottom of the bottom support plate. An upright support guide rod is installed below the conveying guide rod. A conveying guide sleeve is installed at the top of the support guide rod and is coaxially aligned with the support guide rod. The support guide rod and the conveying guide sleeve are slidably engaged. A side mounting plate is installed on the side of the waste conveying seat. The top of the side mounting plate extends to the first punching crossbeam. A movable guide groove is formed along the length of the side wall of the first punching crossbeam. A movable sliding block is installed on the side mounting plate and is slidably engaged with the movable guide groove.

9. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 8, characterized in that: The second cutting module includes a bottom cutting beam flush with the second punching beam. A longitudinally movable downward positioning strip is mounted above the bottom cutting beam, and a silicone contact sheet that contacts the diaphragm is mounted at the bottom of the downward positioning strip. An anti-static rod is mounted at the bottom of the third punching beam. A top cutting beam is mounted above the bottom cutting beam, and a positioning downward lifting cylinder is mounted on the front side of the top cutting beam. The drive end of the positioning downward lifting cylinder is connected to the downward positioning strip. A cutting blade assembly is arranged on the rear side of the top cutting beam. The cutting blade assembly includes a cutting drive seat that moves along the length of the top cutting beam, and a circular cutting blade is mounted on the cutting drive seat. A cutting drive motor drives the circular cutting blade to rotate; a cutting drive mechanism is arranged along the length of the top cutting beam to drive the cutting drive seat to move laterally; the top cutting beam has a hollow groove with a hollow structure along its length; the bottom of both ends of the top cutting beam has a transmission groove that communicates with the transmission groove; the cutting drive mechanism includes a transmission seat installed in the transmission groove; the transmission seat is equipped with belt drive pulleys; a transmission belt is sleeved between the two belt drive pulleys; one long side of the transmission belt runs through the hollow groove along its length; the other long side of the transmission belt is located below the top cutting beam; a transmission block is installed on the bottom long side of the transmission belt.

10. The preparation of a heat-insulating protective film for an automotive sunroof according to claim 9, characterized in that: The top of the cutting drive seat is connected to a cutting sliding seat, which is movably connected to the cutting drive seat. The top cutting crossbeam is equipped with a cutting guide rail for the lateral movement of the cutting sliding seat, and the transmission block is connected to the cutting sliding seat. The bottom of the cutting sliding seat is equipped with a top shock absorber, and the top of the cutting drive seat is equipped with a bottom shock absorber that is coaxially aligned with the top shock absorber and slidably inserted into the top shock absorber. The bottom shock absorber is equipped with a shock absorber column, and the top shock absorber has a top shock absorber hole through which the shock absorber column passes. The top of the shock absorber column is equipped with a top stop block that cooperates with the stop of the top shock absorber hole. The bottom shock absorber is equipped with a shock absorber compression spring sleeved on the shock absorber column, and the top of the shock absorber compression spring is connected to the top shock absorber.

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