Double-sided trimming apparatus for decorative film

Abstract

The present application relates to the technical field of trimming of decorative film, and discloses a double-edge trimming device for decorative film, a machine body, two moving frames are arranged on the bottom inner wall of the machine body through driving components, the moving frames are in the form of a support structure formed by two plates being fixedly connected perpendicularly, and a carrier is mounted on the top of the moving frames; a double-edge trimming system is arranged on one side of the carrier, and is used for synchronous trimming and cutting processing of the two edges of the decorative film; a solid lubricating film generating system and a refrigeration glue removing system are arranged on the inner wall of one side of the moving frames. The surface of the cutting knife is cooled by the refrigeration glue removing system, the frozen and hardened glue is scraped off by a scraper, the solid lubricating film generating system generates a solid lubricating film on the surface of the cutting knife, and the cooling assembly continuously air-cools and cools the cutting knife during trimming, so that the problem of adhesion and accumulation of glue on the surface of the cutting knife can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of decorative film trimming technology, and more specifically to a double-sided trimming device for decorative films. Background Technology

[0002] Decorative films, due to their surface finishes resembling wood grain, stone grain, or brushed metal, are widely used for covering furniture surfaces, interior decoration, and appliance panels. Typically, decorative films consist of a substrate layer, a decorative layer, and an inner pressure-sensitive adhesive layer. In actual production, edge trimming equipment is required to cut the edges of the extruded or laminated decorative film rolls to remove irregular edges and obtain finished film rolls with consistent width.

[0003] However, when existing double-sided trimming equipment cuts decorative film at high speed, the adhesive layer on the inner side of the decorative film has a certain degree of stickiness. When the rotating circular cutting disc cuts the edge of the film material at high speed, the side of the disc and the cutting edge will rub and squeeze against the adhesive layer. As the trimming operation continues, the adhesive will gradually migrate and firmly adhere to the surface of the cutting blade, forming a layer of highly viscoelastic deposit.

[0004] Adhesive residue can alter the original shape of the cutting blade, reducing its sharpness and causing defects such as burrs and unevenness on the edges of the cut decorative film, thus increasing the difficulty of subsequent processing. On the other hand, the accumulation of adhesive residue can increase the rotational resistance of the cutting blade, raising the overall energy consumption of the equipment. In severe cases, it can even cause motor overload, affecting the continuous and stable operation of the equipment. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, the present invention provides a double-sided trimming device for decorative films, which solves the problem that the adhesive on the surface of the prior art can alter the original shape of the cutting blade, resulting in a decrease in the sharpness of the blade and defects such as burrs and unevenness on the cut decorative film edges, increasing the difficulty of subsequent processing. On the other hand, the accumulation of adhesive can increase the rotational resistance of the cutting blade, increase the overall energy consumption of the equipment, and in severe cases, cause motor overload, affecting the continuous and stable operation of the equipment.

[0006] This invention provides the following technical solution: a decorative film double-sided trimming device, comprising: The body has two movable frames on the bottom inner wall through a drive component. The movable frames are support structures formed by two plates vertically fixedly connected. A carrier is installed on the top of the movable frames. The double-sided trimming system, located on one side of the carrier, is used to simultaneously trim and cut both sides of the decorative film. The solid lubricating film generation system and the cryogenic degumming system are both located on the inner wall of one side of the movable frame. The solid lubricating film generation system is used to generate a solid lubricating film on the surface of the double-sided trimming system, and the cryogenic degumming system is used to remove the adhesive from the double-sided trimming system. The cryogenic degumming system includes: A freezing component, located on the inner wall of one side of the movable frame, is used to freeze and cool the colloid on the surface of the cutting blade. At least two scrapers are used to scrape off the colloid after it has frozen and cooled.

[0007] As a further embodiment of the present invention, the bilateral trimming system includes: Two rotating frames are rotatably connected to one side of the carrier frame via bearings, and two cutting blades are rotatably connected to one side of each rotating frame via bearings. The self-locking geared motor and two first brushless DC motors are fixedly connected to one side of the carrier frame. The self-locking geared motor is used to drive the rotating frame to rotate along the axis. The two first brushless DC motors are fixedly connected to the side of the rotating frame away from the carrier frame. The output shafts of the two first brushless DC motors are respectively fixed to the two cutting blades through the detection system.

[0008] As a further embodiment of the present invention, the cryogenic degumming system also includes: The finger cylinder is fixedly connected to the inner wall of one side of the mobile frame, and the two grippers of the finger cylinder are detachably connected to the two collection boxes by bolts. The inclined surface and the baffle are provided. The inclined surface is opened on the side of the collection box near the cutting blade, and the baffle is fixedly connected to the top of the collection box and is inclined towards the cutting blade. The sponge is attached to the collection box near the cutter using Velcro, and is positioned below the scraper. Two collection boxes are installed on the inner wall of one side of the mobile frame, and two scrapers are fixedly connected to the opposite sides of the two collection boxes.

[0009] As a further embodiment of the present invention, both the solid lubricating film generation system for generating solid lubricating films and the freezing component for colloid freezing and cooling include: The manifold is located on one inner wall of the movable frame. The manifold has a hollow frame structure. Multiple equally spaced second nozzles are threaded to both inner walls of the manifold, and the nozzles of the second nozzles face the cutting blade. The guide tube is fixedly connected to one side of the manifold, and one end of the guide tube passes through the movable frame.

[0010] As a further embodiment of the present invention, a cooling assembly is also provided on one side of the carrier frame. The cooling assembly is used to cool the double-sided trimming system. The cooling assembly includes an air inlet pipe, which is fixedly connected to one side of the carrier frame and one end of the air inlet pipe passes through the carrier frame. Two air guide pipes connected to the air inlet pipe are fixedly connected to the outside of the air inlet pipe, and the two air guide pipes are respectively provided on both sides of the cutting blade. A plurality of equidistantly distributed first nozzles are threadedly connected to one side of the air guide pipe.

[0011] As a further embodiment of the present invention, the driving component includes a double-moving linear motor fixedly connected to the inner wall of the top of the machine body. Both moving parts of the double-moving linear motor are fixedly connected to a slide. The top of the slide is fixedly connected to a first linear motor, and the moving part of the first linear motor is fixed to the moving frame.

[0012] As a further embodiment of the present invention, the clamping component includes: Two clamping plates are respectively installed on the inner walls of both sides of the machine body; The hydraulic cylinder is fixedly connected to the inner wall of one side of the machine body and rotatably connected to one of the clamping plates. The connecting shaft is rotatably connected to the inner wall of the other side of the machine body through a bearing, and one end of the connecting shaft is fixed to another clamping plate. The housing is fixedly connected to one side of the outer wall of the machine body; The mounting bracket is fixedly connected to the inside of the housing. A second brushless DC motor is fixedly connected to the top of the mounting bracket, and the second brushless DC motor is fixed to the connecting shaft through a coupling.

[0013] As a further embodiment of the present invention, the detection system includes a fixed plate fixedly connected to one side of the rotating frame, a torque sensor fixedly connected to one side of the fixed plate, and the two ends of the torque sensor being fixed to the output shaft of the first brushless DC motor and the cutting blade respectively through couplings.

[0014] As a further embodiment of the present invention, a support cylinder is fixedly connected to one side of each of the two clamping plates, and the support cylinder is concentric with the output shaft of the second brushless DC motor.

[0015] As a further embodiment of the present invention, when the rotating frame drives the two cutting blades to rotate, the cutting blades are positioned away from the cooling assembly, the solid lubricating film generation system, and the cryogenic degumming system.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention utilizes a cryogenic de-adhesive system to cool the surface of the cutting blade and a scraper to remove the frozen and hardened adhesive. A solid lubricant film generation system generates a solid lubricant film on the cutting blade surface, and a cooling component continuously cools the cutting blade during the trimming process. These three components work together to effectively solve the problem of adhesive adhesion and accumulation on the cutting blade surface, improving the cleanliness of the de-adhesive removal process and the blade's lifespan. They also significantly extend the duration of a single trimming operation, reduce the frequency of station changes, and ensure the cutting quality of the entire machine under high-speed continuous operation.

[0017] 2. The present invention utilizes a detection system formed by a double-sided trimming system with switchable workstations and a torque sensor. When the torque sensor detects that the rotational resistance of the cutting blade increases to a preset threshold, the workstation can be switched and the adhesive removed. This ensures that the cutting blade in operation is always free of excess adhesive accumulation and can always maintain good cutting sharpness. It eliminates the need for frequent manual shutdowns to inspect the cutting blade, significantly reducing the workload of operators. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the mandrel clamping structure of the decorative film roll of the present invention.

[0019] Figure 2 This is a schematic cross-sectional view of the casing structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the drive component and cooling assembly of the present invention.

[0021] Figure 4 This is a schematic diagram of the bilateral trimming system of the present invention.

[0022] Figure 5 This is a schematic diagram of the rotating frame structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the solid lubricant film generation system and the freezing component of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the cryogenic degumming system of the present invention.

[0025] Figure 8 For the present invention Figure 7 A partial cross-sectional view of the collection box.

[0026] Figure 9 This is a schematic diagram of the system flow of the present invention.

[0027] The attached figures are labeled as follows: 1. Clamping assembly; 2. Drive component; 3. Double-sided trimming system; 4. Detection system; 5. Cooling assembly; 6. Solid lubricant film generation system; 7. Freezing assembly; 8. Freezing degumming system; 9. Housing; 10. Body; 11. Carrier; 12. Moving frame; 101. Hydraulic cylinder; 102. Clamping plate; 103. Support cylinder; 104. Connecting shaft; 105. Second DC brushless motor; 106. Mounting bracket; 201. Double-acting linear motor; 202. Carriage; 203. First linear motor; 301. Self-locking geared motor; 302. Rotating frame; 303. Cutting blade; 304. First DC brushless motor; 401. Torque sensor; 402. Mounting plate; 501. Inlet pipe; 502. Air guide pipe; 503. First nozzle; 6701, manifold; 6702, guide pipe; 6703, second nozzle; 801. Finger cylinder; 802. Collection box; 803. Sponge eraser; 804. Scraper; 805. Inclined surface; 806. Baffle. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figures 1-9 The present invention provides a decorative film double-sided trimming device, including a body 10, a housing 9, a drive component 2, a double-sided trimming system 3, a cooling component 5, a solid lubricating film generating system 6, and a cryogenic degumming system 8, etc. When in use, because the adhesive layer on the inner side of the decorative film is sticky, when the rotating circular cutting blade 303 disc cuts the edge of the film material at high speed, the side of the blade disc and the cutting edge will rub and squeeze against the adhesive layer. As the trimming operation continues, the adhesive will gradually migrate and firmly adhere to the surface of the cutting blade 303, forming a layer of highly viscoelastic deposit. Therefore, a freezing adhesive removal system 8 is provided for adhesive removal. However, the double-sided trimming equipment cannot perform trimming operations during the adhesive removal process. Therefore, a double-sided trimming system 3 with switchable cutting blade 303 is also provided. Specifically as follows: like Figure 1 and Figure 2As shown, the body 10 and the housing 9 are welded to one side of the outer wall of the body 10. The bottom inner wall of the body 10 is provided with two movable frames 12 through the drive component 2. The movable frame 12 is a support structure formed by two plates welded vertically. The top of the movable frame 12 is fixed with a carrier frame 11 by bolts. refer to Figure 3 and Figure 4 The double-sided trimming system 3 is set on one side of the carrier 11. The double-sided trimming system 3 is used to simultaneously trim and cut both sides of the decorative film. The double-sided trimming system 3 includes two rotating frames 302. The two rotating frames 302 are rotatably connected to one side of the carrier 11 through bearings. Two cutting blades 303 are rotatably connected to one side of the rotating frame 302 through bearings. The two cutting blades 303 can switch positions by rotating the rotating frame 302. When the adhesive on the surface of one cutting blade 303 needs to be cleaned, the rotating frame 302 can rotate to switch the other idle cutting blade 303 to enter the trimming position to continue the operation without stopping the equipment to clean. This avoids the production interruption problem caused by the need to stop the machine for cleaning in traditional equipment. Furthermore, the self-locking geared motor 301 and the two first DC brushless motors 304 are connected. The self-locking geared motor 301 is fixed to one side of the carrier 11 by bolts. The self-locking geared motor 301 is used to drive the rotating frame 302 to rotate along the axis. Starting the self-locking geared motor 301 can drive the rotating frame 302 to rotate 180 degrees as a whole, completing the switching of the two cutting blades 303. When the rotating frame 302 drives the two cutting blades 303 to rotate, the cutting blades 303 form a clearance with the cooling component 5, the solid lubricating film generation system 6 and the freezing degumming system 8, ensuring that the various functional modules will not interfere with the switching of the cutting blades 303, and ensuring that the switching process is smooth and stable. It should be noted that the self-locking geared motor 301 is existing technology. The self-locking geared motor 301 is a speed reduction transmission device that integrates a self-locking function. Its core feature is that it achieves "reverse self-locking" through a mechanical structure (such as a worm gear) - that is, the output shaft (load end) can only be driven to rotate by the input shaft (motor end), and the load reaction force of the output shaft cannot make the input shaft rotate in the opposite direction. Those skilled in the art can set it according to actual needs, which will not be elaborated here. Both first brushless DC motors 304 are fixed to the side of the rotating frame 302 away from the carrier frame 11 by bolts. The two first brushless DC motors 304 are used to drive the two cutting blades 303 to rotate along the axis. During operation, the corresponding first brushless DC motor 304 drives the cutting blade 303 in the trimming position to rotate at high speed, which can complete the cutting operation of the decorative film edge. However, in order to prevent the connecting wires of the first DC brushless motor 304 from getting tangled when the rotating frame 302 rotates, the rotating frame 302 will rotate 180 degrees in the opposite direction and reset 180 degrees for the next switch, so that the whole equipment can complete continuous non-stop switching operations and avoid the problem of cable tangling.

[0030] refer to Figures 5-8 The cryogenic adhesive removal system 8 includes two collection boxes 802, a finger cylinder 801, an inclined plane 805, a baffle 806, a sponge 803, and a cryogenic assembly 7, etc. A freezing assembly 7 is disposed on one inner wall of the movable frame 12 and is used to freeze and cool the colloid on the surface of the cutting blade 303. The freezing assembly 7 includes a manifold 6701, which is disposed on one inner wall of the movable frame 12. The manifold 6701 has a hollow frame structure. Multiple equally spaced second nozzles 6703 are threaded to both inner walls of the manifold 6701, and the nozzles of the second nozzles 6703 face the cutting blade 303. A guide pipe 6702 is welded to one side of the manifold 6701, and one end of the guide pipe 6702 passes through the movable frame 12. The guide pipe 6702 of the freezing component 7 is connected to the external liquid nitrogen supply hose. During operation, liquid nitrogen enters the manifold 6701 through the guide pipe 6702 and is finally sprayed by the second nozzle 6703 toward the cutting blade 303 located at the adhesive removal station. The low temperature environment of liquid nitrogen can quickly cool and freeze the adhesive on the surface of the cutting blade 303, making the originally highly viscoelastic adhesive become brittle and lose its stickiness. At the same time, the cutting blade 303 rotates slowly, which makes it easy for liquid nitrogen to evenly cover the entire surface of the cutting blade 303 and ensure that the adhesive is fully cooled. To remove the brittle and non-adhesive colloid from the cutting blade 303, the following structure is used; Two collection boxes 802 are each located on one inner wall of the movable frame 12, and are situated on either side of the cutting blade 303. Scrapers 804 are adhered to the side of each collection box 802 closest to the cutting blade 303. A finger cylinder 801 is bolted to one inner wall of the movable frame 12, and its two grippers are detachably connected to the two collection boxes 802 via bolts. After the colloid on the surface of the cutting blade 303 has fully frozen and brittled, the finger cylinder 801 is activated, causing the two collection boxes 802 to move towards each other, so that the two scrapers 804 adhere to both sides of the cutting blade 303 (e.g., ...). Figure 7 As shown, as the cutting blade 303 slowly rotates counterclockwise, the brittle colloid is completely scraped off by the scraper 804, and after detaching from the surface of the cutting blade 303, it falls directly into the collection box 802 below to complete the collection. It should be noted that the finger cylinder 801 in this application is an actuator specifically used for gripping operations. Its core components include a cylinder body, piston, piston rod, end cap, and gripper. It is an energy conversion device that converts the pressure energy of compressed air into the linear mechanical energy of the piston, and then converts the linear mechanical energy into the clamping and releasing mechanical energy of the gripper through an internal linkage mechanism. Those skilled in the art can set it according to actual needs, which will not be elaborated here. Furthermore, the inclined surface 805 is formed on the side of the collection box 802 near the cutting blade 303, and the baffle 806 is welded to the top of the collection box 802. The baffle 806 is inclined towards the cutting blade 303. The colloid fragments scraped off by the rotating cutting blade 303 will fall smoothly into the collection box 802 under the guidance of the inclined surface 805. The inclined baffle 806 can block the colloid fragments and prevent them from being blown away and falling to other parts of the equipment, causing pollution.

[0031] However, the small amount of adhesive residue remaining on the surface of the cutting blade 303 can be removed by the sponge 803, which is attached to the collection box 802 near the cutting blade 303 via Velcro. The sponge 803 is located below the scraper 804. When the cutting blade 303 rotates, the remaining residue will be directly absorbed and wiped by the sponge 803, further improving the cleanliness of adhesive removal and ensuring that the surface of the cutting blade 303 is clean and residue-free when it is reused. It should be noted that the scraper 804 is made of brass. Brass is less hard than the cutting blade 303. During the scraping process of removing brittle colloid, it will not scratch or wear the cutting edge of the cutting blade 303, thus ensuring the integrity of the cutting edge while maintaining the colloid removal effect. Furthermore, when the cutting blade 303 cuts the decorative film, the adhesive quickly adheres to the surface of the cutting blade 303 before a roll of decorative film is completely cut. Therefore, the present invention also includes a solid lubricating film generation system 6 and a cooling component 5. like Figure 6 As shown, the solid lubricant film generation system 6 also includes a manifold 6701, a second nozzle 6703, and a guide pipe 6702. After the adhesive on the surface of the cutting blade 303 is cleaned, the guide tube 6702 of the solid lubricating film generation system 6 is connected to the external dry film lubricant hose. The dry film lubricant is delivered to the manifold 6701 through the guide tube 6702 and finally sprayed by the second nozzle 6703 toward the cleaned cutting blade 303. The dry film lubricant will evenly adhere to the cutting edge and side of the cutting blade 303 to form a dense solid lubricating film. This lubricating film can isolate the surface of the cutting blade 303 from direct contact with the decorative film adhesive layer, reduce the probability of adhesive adhering to the surface of the cutting blade 303, and at the same time reduce the cutting friction between the cutting blade 303 and the film material, thereby improving the sharpness and service life of the cutting edge. Meanwhile, a cooling assembly 5 is disposed on one side of the carrier frame 11. The cooling assembly 5 includes an air inlet pipe 501, which is welded to one side of the carrier frame 11, with one end of the air inlet pipe 501 passing through the carrier frame 11. Two air guide pipes 502 connected to the air inlet pipe 501 are welded to the outside of the air inlet pipe 501, and the two air guide pipes 502 are respectively disposed on both sides of the cutting blade 303. Multiple equally spaced first nozzles 503 are threaded to one side of the air guide pipes 502. During operation, the air inlet pipe 501 is connected to an external compressed cold dry air supply hose, and the compressed cold dry air enters the air guide pipe through the air inlet pipe 501. After step 502, the first nozzle 503 continuously sprays air onto the cutting blade 303 at the trimming station. The airflow can continuously cool the cutting blade 303, which is rotating at high speed, preventing the adhesive from softening and becoming sticky due to friction heating during long-term operation. This further reduces the possibility of the adhesive adhering to the surface of the cutting blade 303. At the same time, the low temperature can also keep the adhesive layer of the decorative film in a relatively stable state, reducing the probability of the adhesive layer being squeezed and migrated during the cutting process. This reduces the accumulation and adhesion of the adhesive from the source, and also prevents the decorative film from deteriorating in mechanical properties due to high-temperature charring, thus ensuring the cutting quality of the finished decorative film.

[0032] Subsequently, as Figure 1 and Figure 2 As shown, the decorative film roller is clamped and fixed to facilitate the trimming operation. A clamping assembly 1 is provided, which includes: two clamping plates 102, a hydraulic cylinder 101, a connecting shaft 104 and a mounting bracket 106, etc. Specifically, two clamping plates 102 are respectively set on the inner walls of the two sides of the machine body 10. The hydraulic cylinder 101 is rotatably connected to one of the clamping plates 102. One end of the connecting shaft 104 is fixed to the other clamping plate 102. The hydraulic cylinder 101 is fixed to the inner wall of one side of the machine body 10 by bolts. The connecting shaft 104 is rotatably connected to the inner wall of the other side of the machine body 10 by bearings. Activating the hydraulic cylinder 101 can push one clamping plate 102 to move closer to the other clamping plate 102, thereby clamping and fixing the decorative film roll. It should be noted that the hydraulic cylinder 101 in this application is an actuator in a hydraulic system. It achieves the telescopic function by cooperating with the hydraulic system. It can also achieve precise control of the telescopic displacement of the piston rod of the hydraulic cylinder 101 by cooperating with a magnetic switch, proximity switch or photoelectric switch. Those skilled in the art can set it according to actual needs, which will not be elaborated here. Each of the two clamping plates 102 has a support cylinder 103 fixed to one side by bolts. The support cylinder 103 is concentric with the output shaft of the second DC brushless motor 105. The inner diameter of the support cylinder 103 is matched with the diameter of the mandrel of the decorative film roll. The two ends of the mandrel of the decorative film roll are inserted into the two support cylinders 103 to complete the initial positioning, thereby ensuring that the mandrel of the decorative film roll is located in the center of the two clamping plates 102. This ensures that the subsequent feeding and unwinding process is stable and does not shake, and avoids the problem of uneven trimming caused by the decorative film deviating. It should be noted that the first brushless DC motor 304 and the second brushless DC motor 105 are both existing technologies. The first brushless DC motor 304 and the second brushless DC motor 105 change the average voltage by adjusting the duty cycle of the PWM (pulse width modulation) signal of the input motor winding, or control the speed by adjusting the amplitude of the drive voltage during the six-step commutation. Those skilled in the art can set it according to actual needs, which will not be elaborated here. Mounting bracket 106 is fixed to the inside of housing 9 by bolts. A second DC brushless motor 105 is fixed to the top of mounting bracket 106 by bolts. The second DC brushless motor 105 is fixed to connecting shaft 104 by coupling. After the second DC brushless motor 105 is started, it can drive the connecting shaft 104 to rotate through the coupling, thereby driving the clamped and fixed decorative film roll to rotate at a uniform speed, providing power for trimming operations.

[0033] Finally, during the cutting process, it is still unknown whether the amount of colloid accumulation on the surface of the cutting blade 303 has reached the threshold that needs to be cleaned. Therefore, the present invention is equipped with a detection system 4 to monitor the status of the cutting blade 303 in real time during the cutting process. like Figure 4 and Figure 9 As shown, the detection system 4 includes a fixed plate 402 fixedly connected to one side of the rotating frame 302. A torque sensor 401 is fixedly connected to one side of the fixed plate 402, and the two ends of the torque sensor 401 are respectively fixed to the output shaft of the first DC brushless motor 304 and the cutting blade 303 through couplings. When the decorative film roll rotates and is unwound for trimming, the output torque of the first DC brushless motor 304 is transmitted to the cutting blade 303 through the torque sensor 401. As the adhesive on the surface of the cutting blade 303 continues to accumulate, the cutting friction between the cutting blade 303 and the decorative film will gradually increase, which will eventually result in an increase in the load torque of the first DC brushless motor 304. The torque sensor 401 can detect the output torque value in real time. It should be noted that the torque sensor 401 is existing technology. The torque sensor 401 can be of model DYN-200. Those skilled in the art can set it according to actual needs, which will not be elaborated here. When the detected torque exceeds the preset threshold, it means that the amount of colloid accumulated on the surface of the cutting blade 303 has reached the level that needs to be cleaned. At this time, the operation of the cutting blade 303 in the trimming station is stopped, and the self-locking geared motor 301 is controlled to start to complete the station switching of the cutting blade 303 and continue the trimming operation. When not overloaded, the current operating state of the cutting blade 303 will be maintained, and no station switching is required.

[0034] like Figure 2 and Figure 3 As shown, the drive component 2 includes a double-moving linear motor 201 that is bolted to the inner wall of the top of the machine body 10. Both moving parts of the double-moving linear motor 201 are bolted to a slide 202. The top of the slide 202 is bolted to a first linear motor 203, and the moving part of the first linear motor 203 is fixed to the moving frame 12. The first linear motor 203 can drive the moving frame 12 to move in a direction perpendicular to the feeding direction of the decorative film, so that the cutting blade 303 is aligned with the edge of the decorative film to be cut, and slowly cuts into the decorative film to complete the blade alignment and perform the cutting work. The double-moving linear motor 201 can drive the two slides 202 to move independently and adjust the distance between the two double-sided trimming systems 3 to adapt to the trimming operation requirements of decorative films of different widths. It should be noted that both the first linear motor 203 and the dual-mover linear motor 201 are existing technologies. The dual-mover linear motor 201 controls the energizing phase and magnetic field of each mover independently (e.g., by using independent coil groups or segmented power supply), so that the two movers are controlled by their respective driving forces and do not interfere with each other. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0035] The working principle of this invention is as follows: When in use, first adjust the distance between the two double-sided trimming systems 3 according to the width of the decorative film to be trimmed by the double-acting linear motor 201. Then, place the decorative film roll to be trimmed between the two clamping plates 102, and insert the two ends of the roll core into the two support cylinders 103 to complete the positioning. Start the hydraulic cylinder 101 to push the clamping plates 102 together to complete the clamping and fixing of the decorative film roll. Then, the second DC brushless motor 105 is started to drive the decorative film roll to rotate at a constant speed. The first DC brushless motor 304 in the trimming station drives the cutting blade 303 to rotate at high speed. At the same time, two first linear motors 203 are started to drive two moving frames 12 to move the cutting blade 303 to cut into the edge of the decorative film to carry out the cutting work. Meanwhile, the air inlet pipe 501 of the cooling component 5 is connected to external compressed cold and dry air. The cold and dry air is continuously sprayed from the first nozzle 503 to the cutting blade 303 at the trimming station to continuously cool the cutting blade 303 which is rotating at high speed. During the trimming process, the torque sensor 401 monitors the output torque of the first DC brushless motor 304 in real time. When the torque value exceeds the preset threshold, the operation of the trimming station cutting blade 303 is stopped, the two first linear motors 203 are reset, and then the two self-locking reduction motors 301 are started to drive the rotating frame 302 to rotate 180 degrees, and the idle cutting blade 303, which has been cleaned and pre-coated with solid lubricating film, is rotated to the trimming station. Then the first linear motor 203 drives the moving frame 12 to move again, so that the newly switched cutting blade 303 cuts into the edge of the decorative film. After the workstation switch is completed, the original adhesive-coated cutting blade 303 enters the adhesive removal station. The freezing component 7 sprays liquid nitrogen onto the cutting blade 303 through the second nozzle 6703 to rapidly freeze the adhesive on the surface of the cutting blade 303, causing the originally highly viscous and elastic adhesive to become brittle and lose its stickiness. The cutting blade 303 maintains a low speed rotation at the workstation to ensure that the adhesive is cooled evenly. After freezing, the finger cylinder 801 drives the two collection boxes 802 to move towards each other, so that the scraper 804 fits against both sides of the cutting blade 303. As the cutting blade 303 rotates, the brittle colloid is scraped off by the scraper 804 and falls into the collection box 802. The remaining small amount of colloid fragments are absorbed and wiped by the sponge 803, completing the cleaning operation of the cutting blade 303. Finally, the solid lubricant film generation system sprays dry film lubricant onto the cleaned cutting blade 303, reforming a solid lubricant film on the surface of the cutting blade 303, ready for the next station switch.

[0036] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this invention can all be commonly used parts on the market that can achieve the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs; The accompanying drawings of the embodiments disclosed in this invention only involve structures relevant to the embodiments disclosed in this invention. Other structures can be referred to with common designs. Unless otherwise specified, the same embodiment and different embodiments of this invention can be combined with each other.

Claims

1. A decorative film double-sided trimming device, characterized in that, include: The body (10) has two movable frames (12) on the bottom inner wall of the body (10) through the drive component (2). The movable frame (12) is a support structure formed by two plates vertically fixedly connected. The top of the movable frame (12) is equipped with a carrier frame (11). The double-sided trimming system (3) is set on one side of the carrier (11). The double-sided trimming system (3) is used to simultaneously trim and cut the two sides of the decorative film. Solid lubricating film generation system (6) and freezing de-adhesive system (8) are both located on one side of the inner wall of the movable frame (12). Solid lubricating film generation system (6) is used to generate solid lubricating film on the surface of the double-sided trimming system (3), and freezing de-adhesive system (8) is used to remove adhesive from the double-sided trimming system (3). The cryogenic degumming system (8) includes: The freezing component (7) is located on the inner wall of one side of the movable frame (12) and is used to freeze and cool the colloid on the surface of the cutting blade (303). At least two scrapers (804) are used to scrape off the colloid after freezing and cooling.

2. The decorative film double-sided trimming device according to claim 1, characterized in that: The bilateral trimming system (3) includes: Two rotating frames (302) are rotatably connected to one side of the carrier (11) via bearings. Two cutting blades (303) are rotatably connected to one side of the rotating frame (302) via bearings. The self-locking geared motor (301) and two first brushless DC motors (304) are fixedly connected to one side of the carrier (11). The self-locking geared motor (301) is used to drive the rotating frame (302) to rotate along the axis. The two first brushless DC motors (304) are fixedly connected to the side of the rotating frame (302) away from the carrier (11). The output shafts of the two first brushless DC motors (304) are fixed to the two cutting blades (303) respectively through the detection system (4).

3. The decorative film double-sided trimming device according to claim 2, characterized in that: The cryogenic degumming system (8) also includes: Finger cylinder (801) is fixedly connected to the inner wall of one side of the movable frame (12), and the two grippers of the finger cylinder (801) are detachably connected to the two collection boxes (802) by bolts. The inclined surface (805) and the baffle (806) are provided. The inclined surface (805) is provided on the side of the collection box (802) near the cutting blade (303). The baffle (806) is fixedly connected to the top of the collection box (802) and is inclined towards the cutting blade (303). The sponge (803) is attached to the side of the collection box (802) near the cutter (303) by Velcro, and the sponge (803) is located below the scraper (804); Two collection boxes (802) are provided on one inner wall of the movable frame (12), and two scrapers (804) are fixedly connected to the opposite side of the two collection boxes (802).

4. The decorative film double-sided trimming device according to claim 3, characterized in that: The solid lubricating film generation system (6) for generating solid lubricating films and the freezing assembly (7) for cooling colloidal freezing both include: Manifold (6701) is located on one side of the inner wall of the movable frame (12). The manifold (6701) has a hollow frame structure. Multiple equally spaced second nozzles (6703) are threaded to both sides of the inner wall of the manifold (6701), and the nozzles of the second nozzles (6703) face the cutting blade (303). The guide tube (6702) is fixedly connected to one side of the manifold (6701), and one end of the guide tube (6702) passes through the movable frame (12).

5. The decorative film double-sided trimming device according to claim 1, characterized in that: It also includes a cooling assembly (5) disposed on one side of the carrier (11). The cooling assembly (5) is used to cool the double-sided trimming system (3). The cooling assembly (5) includes an air inlet pipe (501). The air inlet pipe (501) is fixedly connected to one side of the carrier (11), and one end of the air inlet pipe (501) passes through the carrier (11). Two air guide pipes (502) connected to the outside of the air inlet pipe (501) are fixedly connected. The two air guide pipes (502) are respectively disposed on both sides of the cutting blade (303). A plurality of equidistant first nozzles (503) are threadedly connected to one side of the air guide pipe (502).

6. The decorative film double-sided trimming device according to claim 1, characterized in that: The drive component (2) includes a double-moving linear motor (201) fixedly connected to the inner wall of the top of the body (10). Both moving parts of the double-moving linear motor (201) are fixedly connected to a slide (202). The top of the slide (202) is fixedly connected to a first linear motor (203), and the moving part of the first linear motor (203) is fixed to the moving frame (12).

7. The decorative film double-sided trimming device according to claim 1, characterized in that: The clamping assembly (1) includes: Two clamping plates (102) are respectively installed on the inner walls of the two sides of the body (10); The hydraulic cylinder (101) and the connecting shaft (104) are fixedly connected to the inner wall of one side of the machine body (10). The hydraulic cylinder (101) is rotatably connected to one of the clamping plates (102). The connecting shaft (104) is rotatably connected to the inner wall of the other side of the machine body (10) through a bearing. One end of the connecting shaft (104) is fixed to the other clamping plate (102). The housing (9) is fixedly connected to one side of the outer wall of the body (10); Mounting bracket (106) is fixedly connected to the inside of the housing (9). A second brushless DC motor (105) is fixedly connected to the top of the mounting bracket (106), and the second brushless DC motor (105) is fixed to the connecting shaft (104) through a coupling.

8. The decorative film double-sided trimming device according to claim 2, characterized in that: The detection system (4) includes a fixed plate (402) fixedly connected to one side of the rotating frame (302). A torque sensor (401) is fixedly connected to one side of the fixed plate (402), and the two ends of the torque sensor (401) are respectively fixed to the output shaft of the first DC brushless motor (304) and the cutting blade (303) through couplings.

9. A decorative film double-sided trimming device according to claim 7, characterized in that: Each of the two clamping plates (102) is fixedly connected to a support cylinder (103) on one side opposite to the other, and the support cylinder (103) is concentric with the output shaft of the second DC brushless motor (105).

10. A decorative film double-sided trimming device according to claim 1, characterized in that: When the rotating frame (302) drives the two cutting blades (303) to rotate, the cutting blades (303) form a clearance with the cooling component (5), the solid lubricating film generation system (6) and the cryogenic degumming system (8).

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