A feeding device for a laser film cutting device

Abstract

The present invention discloses a technology related to the field of laser film cutting equipment, specifically a loading device for a laser film cutting equipment, which includes a laser film cutting machine. A loading table is provided on one side of the laser film cutting machine, and a gantry is provided above the laser film cutting machine. A two-axis linear module is installed on one side of the gantry, and a support column is fixedly installed on the slide table of the two-axis linear module. A first suction cup assembly for film loading and adsorption is installed at the bottom end of the support column, and second suction cup assemblies capable of sucking and lifting both ends of the film are symmetrically arranged at the four corners of the first suction cup assembly; by setting the first suction cup assembly, the second suction cup assembly and the driving assembly, after the first suction cup assembly and the second suction cup assembly vacuum-adsorb the film to be cut, the driving assembly will lift and rotate the second suction cup assembly, and the four corners of the film will be lifted up in advance, avoiding the film below being moved due to vacuum adsorption and electrostatic adsorption while the whole film is adsorbed and lifted.

Description

Technical Field

[0001] The present invention relates to the technical field of laser film cutting equipment, and particularly to a feeding device for a laser film cutting equipment. Background Art

[0002] The laser film cutting equipment is an advanced processing equipment widely used in industrial production. It is based on the thermal effect of the laser. The laser generator generates a laser beam with a high energy density, so that the film material absorbs the energy and instantly melts or vaporizes, thereby realizing cutting. The existing feeding mode includes the suction cup feeding method. The vacuum pump generates negative pressure, the film material is adsorbed by the suction cup, and then the film material is transported to the working area of the laser film cutting equipment by a robotic arm or other transmission mechanisms. It is suitable for thin and easily deformed film materials and can avoid damaging the surface of the film materials, but there are certain requirements for the flatness and surface quality of the film materials.

[0003] When feeding the film material, usually multiple layers of films are stacked together waiting to be fed. However, due to the vacuum adsorption and electrostatic adsorption between the films, when the suction cup sucks and lifts the whole film, multiple films will be lifted at the same time. The lifted films will fall to the ground or the position will shift, making the next feeding position inaccurate and affecting the feeding efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a feeding device for a laser film cutting equipment to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A feeding device for a laser film cutting equipment, including a laser film cutting machine. There is a feeding table on one side of the laser film cutting machine. There is a gantry above the laser film cutting machine. A two-axis linear module is installed on one side of the gantry. A support column is fixedly installed on the sliding table of the two-axis linear module. A first suction cup assembly for film feeding adsorption is installed at the bottom end of the support column. Second suction cup assemblies capable of sucking and lifting the two ends of the film are symmetrically arranged at the four corners of the first suction cup assembly. Driving components for driving the adjacent second suction cup assemblies to operate are symmetrically arranged on both sides of the first suction cup assembly. A protection component for protecting a plurality of second suction cup assemblies is arranged at the top of the first suction cup assembly. Lifting components capable of supporting the bottom of the film to be cut are arranged at the four corners of the protection component.

[0006] Through the above technical solution, when laser cutting the film is required, the two-axis linear module moves the first suction cup assembly above the loading table and descends. The first suction cup assembly and the second suction cup assembly suck the film to be cut. The driving assembly allows the second suction cup assembly to rotate at an angle and lift at the same time, so that the four corners of the film can be lifted first, avoiding that directly lifting the first suction cup assembly will cause multiple stacked films to be lifted simultaneously due to vacuum adsorption and electrostatic adsorption. And while the second suction cup assembly rotates and lifts, the supporting assembly will also move synchronously under the adsorbed film to prevent it from falling during the film loading process.

[0007] Preferably, the first suction cup assembly includes a first mounting plate installed at the bottom end of the support column 19. A first connecting plate is fixedly installed at the bottom of the first mounting plate. A plurality of mounting rods are fixedly installed at the bottom of the first connecting plate. A plurality of first vacuum suction cups are fixedly installed on each mounting rod.

[0008] Through the above technical solution, when the first mounting plate moves downward, the first connecting plate will drive the mounting rods to move downward. The mounting rods make the plurality of first vacuum suction cups stick to the top of the film to be processed. Then the first vacuum suction cups will be evacuated to suck the film to be processed for the loading operation.

[0009] Preferably, the protection assembly includes a protective cover fixedly sleeved on the support column. Triangularly arranged limiting plates are symmetrically installed on the inner walls of the two sides of the protective cover away from the first mounting plate.

[0010] Through the above technical solution, when the two-axis linear module drives the support column to move downward, the protective cover on the support column will also move together, so as to protect the equipment inside the protective cover at any time.

[0011] Preferably, the driving assembly includes a second mounting plate slidably arranged on the top of the first connecting plate. The second mounting plate is arranged in an "L" shape. A pushing cylinder is fixedly installed on one side of the second mounting plate. A pushing plate is fixedly installed at the pushing end of the pushing cylinder. Two rolling columns are rotatably installed on the side of the pushing plate close to the limiting plate. The cylindrical surfaces of the two rolling columns are both in contact with the inclined surfaces of the adjacent limiting plates. At both ends of the bottom of the pushing plate, second connecting plates are fixedly installed. The two second connecting plates are both arranged in an "L" shape. One side of the bottom ends of the two second connecting plates is rotatably installed with a connecting rod. First driving gears are fixedly sleeved on the two connecting rods. A first rack is meshed and connected to one side of each of the two first driving gears.

[0012] Through the above technical solution, when the pushing end of the pushing cylinder retracts upward and the pushing plate moves upward together, the pushing plate 703 drives the rolling column 708 to move upward. At this time, the rolling column 708 rolls along the inclined surface of the limiting plate 802, causing the rolling column 708 to move obliquely upward along the inclined surface of the limiting plate 802, thereby driving the pushing plate to move together and causing the pushing cylinder to also move. Therefore, the pushing plate moves as a whole obliquely upward. While the pushing plate moves upward, it also drives the two second connecting plates to move obliquely upward. In this way, the two connecting rods drive the first driving gear to move obliquely upward together. The first driving gear remains engaged with the first rack on one side while moving upward. Therefore, the first driving gear rotates while moving upward, which in turn drives the connecting rod to rotate.

[0013] Preferably, first sliding grooves are symmetrically formed at both ends of the top of the first connecting plate. First sliding blocks are slidably installed inside the two first sliding grooves. The tops of the two first sliding blocks are fixedly installed on the bottom of the adjacent second mounting plate. Two limiting holes are formed on both sides of the first mounting plate close to the second mounting plate. Two limiting rods are fixedly installed on one side of the two second mounting plates close to the first mounting plate. One end of each of the two limiting rods extends into the interior of the adjacent limiting hole. A first pushing spring is sleeved on each limiting rod. The two ends of each first pushing spring are respectively abutted against the adjacent second mounting plate and the first mounting plate.

[0014] Through the above technical solution, when the second mounting plate slides on the top of the first connecting plate due to the movement of the pushing cylinder, it is limited by the cooperation of the first sliding groove and the first sliding block to prevent the movement of the second mounting plate from deviating. And when the second mounting plate slides towards the first mounting plate, the limiting rod will be pushed into the limiting hole, and the first pushing spring on the limiting rod will be compressed. When the force pushing the second mounting plate to move disappears, the first pushing spring expands and pushes the second mounting plate along the first sliding groove to the initial position for reset.

[0015] Preferably, third connecting plates are symmetrically installed on both sides of the bottom of the first connecting plate. Second sliding grooves are formed at both ends of the top of the two third connecting plates. A sliding rod is fixedly installed inside each second sliding groove. A second sliding block is slidably sleeved on each sliding rod. The top end of each second sliding block is fixedly installed on the bottom end of the adjacent first rack. A second pushing spring is sleeved on each sliding rod. The two ends of each second pushing spring are respectively abutted against the adjacent second sliding block and the inner wall of the second sliding groove.

[0016] Through the above technical solution, initially, the second pushing spring unfolds to push the second sliding block, causing the second sliding block to drive the first rack to remain in contact with the first driving gear. When the first driving gear moves obliquely upward along with the connecting rod, it not only remains in meshing with the first rack but also pushes the first rack to move along the second sliding groove. At this time, although the second pushing spring will be compressed, it will keep the first rack in meshing with the first driving gear, preventing the two from separating.

[0017] Preferably, the second suction cup assembly includes a third mounting plate fixedly installed at one end of the connecting rod, and a second vacuum suction cup is fixedly installed at the end of the third mounting plate away from the connecting rod.

[0018] Through the above technical solution, after the second vacuum suction cup sucks the film to be processed, the pushing end of the pushing cylinder retracts. The cooperation of the pushing plate, rolling column, and limiting plate will cause the second connecting plate and the connecting rod to move. In this way, the first driving gear on the connecting rod will move, and the movement of the first driving gear in cooperation with the first rack will cause the connecting rod to rotate. After the connecting rod rotates, the third mounting plate will rotate, and the third mounting plate will cause the second vacuum suction cup to rotate around the connecting rod, capable of lifting a part of the four corners of the film to be processed, avoiding the adsorption and movement between multiple films to be processed due to vacuum adsorption and electrostatic adsorption.

[0019] Preferably, second racks are fixedly installed on one side of each of the two second mounting plates close to the limiting plate. One end of each second rack away from the adjacent second mounting plate penetrates through the protective cover. On both sides of the outer end of each second rack located outside the protective cover, there are rotating columns. A fixed block is rotatably sleeved on the cylindrical surface of each rotating column, and each fixed block is fixedly installed with the protective cover. A second driving gear is fixedly installed at the top of each rotating column. Tooth grooves are formed on both sides of each second rack close to the second driving gear, and each second driving gear is meshed and connected with the adjacent second rack. A wire winder is fixedly sleeved at the bottom end of each rotating column, and a steel wire is wound and connected to each wire winder. Mounting columns are fixedly installed at the four corners of the bottom side of the protective cover. A rotating disk is rotatably sleeved on the cylindrical surface of each mounting column, and a limiting disk is fixedly installed at the bottom side of each rotating disk. One end of the steel wire bypasses the rotating disk.

[0020] Through the above technical solution, when the second mounting plate moves backward along the first sliding groove, the second rack will be driven to move accordingly. At this time, the second drive gears meshing on both sides of the second rack will rotate. The rotation of the second drive gears will cause the rotating column to rotate, and the rotation of the rotating column will cause the wire reel to rotate and wind the steel wire. The rotating disc can change the pulling direction of the steel wire, and the limiting disc can prevent the steel wire attached to the rotating disc from falling off and separating from the rotating disc. When the second mounting plate moves forward along the first sliding groove, the second rack will be pushed out of the protective cover, causing the two second drive gears to rotate in the reverse direction, and the rotating column will drive the wire reel to rotate in the reverse direction as well, releasing the wound part of the steel wire, thereby increasing the available length of the entire steel wire.

[0021] Preferably, the lifting assembly includes a fourth mounting plate fixedly installed on the inner wall of one side of the protective cover. A rotating block is installed on the bottom side of the fourth mounting plate. A torsion spring is provided inside the rotating block. A connecting column is installed on the bottom side of the rotating block. A "L"-shaped support plate is fixedly sleeved on the connecting column. A plurality of sponge rollers are symmetrically and rotatably installed on the upper and lower sides of the straight edge of the support plate. One end of the steel wire is fixedly installed at one end of the support plate close to the connecting column.

[0022] Through the above technical solution, when the four corners of the film to be processed are lifted, one end of the steel wire will be wound by the wire reel, and the other end will pull the support plate. The support plate rotates around the connecting column, and the rotating connecting column will tighten the torsion spring inside the rotating block. One end of the support plate will be inserted from the position where the film is lifted. The sponge rollers can prevent the support plate from scratching the film to be processed. When the four corners of the film to be processed are lowered, the second rack will also be pushed out of the protective cover. Through the cooperation among the second rack, the second drive gears, the rotating column, and the wire reel, the available length of the steel wire will be extended, and thus it will not pull the support plate to rotate. After the support plate loses the force to rotate, the torsion spring inside the rotating block will stretch, thereby driving the connecting column to rotate in the reverse direction, and finally causing the support plate to rotate in the reverse direction and move out from the bottom of the processed film, facilitating the processed film to be placed on the cutting platform.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, with the following advantages:

[0024] 1. By setting the first suction cup assembly, the second suction cup assembly, and the drive assembly, after the first suction cup assembly and the second suction cup assembly vacuum-adsorb the film to be cut, the drive assembly will lift and rotate the second suction cup assembly, so that the four corners of the film will be lifted in advance, avoiding the film below being moved due to vacuum adsorption and electrostatic adsorption while the entire film is being adsorbed and lifted.

[0025] 2. By setting up a protection component, a second suction cup component, and a driving component, after the second suction cup component adsorbs the four corners of the film, the driving component will start and cooperate with the protection component to make the second suction cup component rotate. In this way, the four corners of the film will be lifted first, preventing the film below from moving when the film is lifted.

[0026] 3. By setting up a lifting component, while the four corners of the film to be processed are lifted, the lifting component will also move to the lower part of the adsorbed film. In this way, when the suction force of the first suction cup component and the second suction cup component is insufficient and the film drops, it will be held by the lifting component, preventing it from falling directly to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structure diagram of the present invention;

[0028] Figure 2 It is a bottom view structure diagram of the protective cover of the present invention;

[0029] Figure 3 It is a structure diagram of the interior of the present invention with a protective cover;

[0030] Figure 4 It is a structure diagram of the present invention with a first suction cup component;

[0031] Figure 5 It is a structure diagram of the present invention with a second suction cup component;

[0032] Figure 6 It is a sectional view structure diagram of the present invention with a first mounting plate;

[0033] Figure 7 It is a structure diagram of the present invention with a first connecting plate;

[0034] Figure 8 It is a structure diagram of the present invention with a lifting component;

[0035] Figure 9 It is a structure diagram of the present invention with a driving component.

[0036] In the figure: 1. Laser film cutting machine; 2. Loading table; 3. Gantry; 4. Two-axis linear module; 501. First mounting plate; 502. First connecting plate; 503. Mounting rod; 504. First vacuum suction cup; 601. Third mounting plate; 602. Second vacuum suction cup; 701. Second mounting plate; 702. Pushing cylinder; 703. Pushing plate; 704. Second connecting plate; 705. Connecting rod; 706. First driving gear; 707. First rack; 708. Rolling column; 801. Protective cover; 802. Limiting plate; 901. Fourth mounting plate; 902. Rotating block; 903. Connecting column; 904. Supporting plate; 905. Sponge roller; 10. First sliding groove; 11. First sliding block; 12. Limiting rod; 13. First pushing spring; 14. Third connecting plate; 15. Second sliding groove; 16. Sliding rod; 17. Second sliding block; 18. Second pushing spring; 19. Supporting column; 20. Second rack; 21. Rotating column; 22. Fixed block; 23. Second driving gear; 24. Wire winder; 25. Steel wire; 26. Mounting column; 27. Rotating disc; 28. Limiting disc. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a loading device for a laser film cutting device, including a laser film cutting machine 1. A loading table 2 is provided on one side of the laser film cutting machine 1. A gantry 3 is provided above the laser film cutting machine 1. A two-axis linear module 4 is installed on one side of the gantry 3. A supporting column 19 is fixedly installed on the sliding table of the two-axis linear module 4. A first suction cup assembly for adsorbing the film during loading is installed at the bottom end of the supporting column 19. Second suction cup assemblies capable of sucking and lifting both ends of the film are symmetrically arranged at the four corners of the first suction cup assembly. Driving assemblies for driving adjacent second suction cup assemblies to operate are symmetrically arranged on both sides of the first suction cup assembly. A protective assembly for protecting a plurality of second suction cup assemblies is provided at the top of the first suction cup assembly. Lifting assemblies capable of supporting the bottom of the film to be cut are provided at the four corners of the protective assembly.

[0039] When the film needs to be cut by laser, the two-axis linear module 4 moves the first suction cup assembly above the loading table 2 and descends. The first suction cup assembly and the second suction cup assembly suck the film to be cut. The driving assembly makes the second suction cup assembly rotate at an angle and lift at the same time, so that the four corners of the film can be lifted first, avoiding that directly lifting the first suction cup assembly will cause multiple stacked films to be lifted simultaneously due to vacuum adsorption and electrostatic adsorption. And while the second suction cup assembly rotates and lifts, the supporting assembly will also move synchronously below the adsorbed film to prevent it from falling during the film loading process.

[0040] The first suction cup assembly includes a first mounting plate 501 installed at the bottom end of the support column 19. A first connecting plate 502 is fixedly installed at the bottom of the first mounting plate 501. A plurality of mounting rods 503 are fixedly installed at the bottom of the first connecting plate 502. A plurality of first vacuum suction cups 504 are fixedly installed on each mounting rod 503.

[0041] When the first mounting plate 501 moves downward, the first connecting plate 502 will drive the mounting rods 503 to move downward. The mounting rods 503 make the plurality of first vacuum suction cups 504 stick to the top of the film to be processed. Then the first vacuum suction cups 504 will be evacuated to suck the film to be processed for the loading operation.

[0042] The protection assembly includes a protective cover 801 fixedly sleeved on the support column 19. Triangular limiting plates 802 are symmetrically installed on the inner walls of the two sides of the protective cover 801 away from the first mounting plate 501.

[0043] When the two-axis linear module 4 drives the support column 19 to move downward, the protective cover 801 on the support column 19 will also move together, so as to protect the equipment inside the protective cover 801 at any time.

[0044] The driving assembly includes a second mounting plate 701 slidably arranged on the top of the first connecting plate 502. The second mounting plate 701 is arranged in an "L" shape. A pushing cylinder 702 is fixedly installed on one side of the second mounting plate 701. A pushing plate 703 is fixedly installed at the pushing end of the pushing cylinder 702. Two rolling columns 708 are rotatably installed on the side of the pushing plate 703 close to the limiting plate 802. The cylindrical surfaces of the two rolling columns 708 are both attached to the inclined surfaces of the adjacent limiting plates 802. At both ends of the bottom of the pushing plate 703, second connecting plates 704 are fixedly installed. The two second connecting plates 704 are both arranged in an "L" shape. One side of the bottom ends of the two second connecting plates 704 is rotatably installed with a connecting rod 705. A first driving gear 706 is fixedly sleeved on each of the two connecting rods 705. A first rack 707 is meshed and connected to one side of each of the two first driving gears 706.

[0045] When the pushing end of the pushing cylinder 702 retracts upward and the pushing plate 703 moves upward together, the pushing plate 703 drives the rolling column 708 to move upward. At this time, the rolling column 708 rolls along the inclined surface of the limiting plate 802, causing the rolling column 708 to move obliquely upward along the inclined surface of the limiting plate 802, thereby driving the pushing plate 703 to move together and causing the pushing cylinder 702 to also move. Therefore, the pushing plate 703 moves as a whole obliquely upward.

[0046] While the pushing plate 703 moves upward, it also drives the two second connecting plates 704 to move obliquely upward. In this way, the two connecting rods 705 drive the first driving gear 706 to move obliquely upward together. The first driving gear 706 remains engaged with the first rack 707 on one side while moving upward. Therefore, the first driving gear 706 rotates while moving upward, and in turn drives the connecting rod 705 to rotate.

[0047] At both ends of the top of the first connecting plate 502, first sliding grooves 10 are symmetrically provided. First sliding blocks 11 are slidably installed inside the two first sliding grooves 10. The tops of the two first sliding blocks 11 are fixedly installed at the bottom of the adjacent second mounting plate 701. On both sides of the first mounting plate 501 close to the second mounting plate 701, two limiting holes are provided. On one side of the two second mounting plates 701 close to the first mounting plate 501, two limiting rods 12 are fixedly installed. One end of each of the two limiting rods 12 extends into the interior of the adjacent limiting hole. A first pushing spring 13 is sleeved on each limiting rod 12. The two ends of each first pushing spring 13 are respectively abutted against the adjacent second mounting plate 701 and the first mounting plate 501.

[0048] When the second mounting plate 701 slides on the top of the first connecting plate 502 due to the movement of the pushing cylinder 702, it is limited by the cooperation of the first sliding groove 10 and the first sliding block 11 to prevent the movement of the second mounting plate 701 from deviating. And when the second mounting plate 701 slides toward the first mounting plate 501, the limiting rod 12 will be pushed into the limiting hole, and the first pushing spring 13 on the limiting rod 12 will be compressed. When the force driving the second mounting plate 701 to move disappears, the first pushing spring 13 expands and pushes the second mounting plate 701 along the first sliding groove 10 to return to the initial position for reset.

[0049] On both sides of the bottom of the first connecting plate 502, the third connecting plates 14 are symmetrically installed. At both ends of the top of the two third connecting plates 14, second sliding grooves 15 are opened. Inside each second sliding groove 15, a sliding rod 16 is fixedly installed. On each sliding rod 16, a second sliding block 17 is slidably sleeved. At the top of each second sliding block 17, the bottom end of the adjacent first rack 707 is fixedly installed. On each sliding rod 16, a second pushing spring 18 is sleeved. The two ends of each second pushing spring 18 are respectively abutted against the adjacent second sliding block 17 and the inner wall of the second sliding groove 15.

[0050] Initially, the second pushing spring 18 expands to push the second sliding block 17, so that the second sliding block 17 drives the first rack 707 to keep in contact with the first driving gear 706. When the first driving gear 706 moves obliquely upward together with the connecting rod 705, it will not only remain meshed with the first rack 707, but also push the first rack 707 to move along the second sliding groove 15. At this time, the second pushing spring 18 will be compressed. Under the action of the elastic force of the second pushing spring 18, the first rack 707 will be kept meshed with the first driving gear 706 to prevent the two from separating.

[0051] The second suction cup assembly includes a third mounting plate 601 fixedly installed at one end of the connecting rod 705. At the end of the third mounting plate 601 away from the connecting rod 705, a second vacuum suction cup 602 is fixedly installed.

[0052] After the second vacuum suction cup 602 sucks the film to be processed, the pushing end of the pushing cylinder 702 retracts. The cooperation of the pushing plate 703, the rolling column 708, and the limiting plate 802 will move the second connecting plate 704 and the connecting rod 705. In this way, the first driving gear 706 on the connecting rod 705 will move. The movement of the first driving gear 706 in cooperation with the first rack 707 will make the connecting rod 705 rotate. After the connecting rod 705 rotates, the third mounting plate 601 will rotate. The third mounting plate 601 will make the second vacuum suction cup 602 rotate around the connecting rod 705, and can lift the four corners of the film to be processed, avoiding the adsorption and movement between multiple films to be processed due to vacuum adsorption and electrostatic adsorption.

[0053] On one side of the two second mounting plates 701 close to the limiting plate 802, a second rack 20 is fixedly installed. One end of each of the two second racks 20 away from the adjacent second mounting plate 701 penetrates through the protective cover 801. On both sides of the outer end of each second rack 20 located outside the protective cover 801, a rotating column 21 is provided. A fixing block 22 is rotatably sleeved on the cylindrical surface of each rotating column 21. Each fixing block 22 is fixedly installed with the protective cover 801. A second driving gear 23 is fixedly installed at the top end of each rotating column 21. Tooth teeth are provided on both sides of the second rack 20 close to the second driving gear 23. Each second driving gear 23 is meshed and connected with the adjacent second rack 20. A wire reel 24 is fixedly sleeved at the bottom end of each rotating column 21. A steel wire 25 is wound and connected to each wire reel 24. Mounting columns 26 are fixedly installed at the four corners of the bottom side of the protective cover 801. A rotating disc 27 is rotatably sleeved on the cylindrical surface of each mounting column 26. A limiting disc 28 is fixedly installed at the bottom side of each rotating disc 27. One end of the steel wire 25 bypasses the rotating disc 27.

[0054] When the second mounting plate 701 moves backward along the first sliding groove 10, the second rack 20 will be driven to move accordingly. At this time, the second driving gears 23 meshed on both sides of the second rack 20 will rotate. The rotation of the second driving gear 23 will cause the rotating column 21 to rotate. The rotation of the rotating column 21 will cause the wire reel 24 to rotate and wind up the steel wire 25. The rotating disc 27 can change the pulling direction of the steel wire 25. The limiting disc 28 will prevent the steel wire 25 attached to the rotating disc 27 from falling off and separating from the rotating disc 27.

[0055] When the second mounting plate 701 moves forward along the first sliding groove 10, the second rack 20 will be pushed out of the protective cover 801, so that the two second driving gears 23 rotate in the reverse direction, and the rotating column 21 drives the wire reel 24 to also rotate in the reverse direction, releasing the wound part of the steel wire 25, thereby increasing the available length of the entire steel wire 25.

[0056] The lifting assembly includes a fourth mounting plate 901 fixedly installed on the inner wall of one side of the protective cover 801. A rotating block 902 is installed at the bottom side of the fourth mounting plate 901. A torsion spring is provided inside the rotating block 902. A connecting column 903 is installed at the bottom side of the rotating block 902. A "L"-shaped support plate 904 is fixedly sleeved on the connecting column 903. A plurality of sponge rollers 905 are symmetrically and rotatably installed on the upper and lower sides of the straight side of the support plate 904. One end of the steel wire 25 is fixedly installed with the support plate 904 close to one end of the connecting column 903.

[0057] After the four corners of the film to be processed are lifted, one end of the steel wire 25 will be wound by the wire reel 24, and the other end will pull the pallet 904. The pallet 904 rotates around the connecting column 903. The rotating connecting column 903 will tighten the torsion spring inside the rotating block 902. One end of the pallet 904 will be inserted from the position where the film is lifted. The sponge roller 905 will prevent the pallet 904 from scratching the film to be processed. After the four corners of the film to be processed are lowered, the second rack 20 will also be pushed out of the protective cover 801. With the cooperation among the second rack 20, the second driving gear 23, the rotating column 21, and the wire reel 24, the available length of the steel wire 25 will be extended, so that the pallet 904 will not be pulled to rotate. After the pallet 904 loses the force to rotate, the torsion spring inside the rotating block 902 will stretch, thereby driving the connecting column 903 to rotate in the reverse direction, and finally driving the pallet 904 to rotate in the reverse direction and move out of the bottom of the processed film, facilitating the processed film to be placed on the cutting platform.

[0058] Working principle: Initially, the pushing end of the pushing cylinder 702 is in the pushed-out state, and the second vacuum chuck 602 is vertically downward.

[0059] When loading the film to be processed, the two-axis linear module 4 moves the support column 19 to the set position above the loading table 2 and then descends. The first mounting plate 501, the first connecting plate 502, and the mounting rod 503 descend, so that the first vacuum chuck 504 and the second vacuum chuck 602 are attached to the top of the film to be processed. Then, the first vacuum chuck 504 and the second vacuum chuck 602 evacuate to suck the film to be processed.

[0060] Subsequently, the pushing end of the pushing cylinder 702 retracts, and the pushing plate 703 moves upward together. The two rolling columns 708 are pushed by the inclined surface of the limiting plate 802, so that the rolling columns 708 move along the inclined direction of the limiting plate 802 to push the pushing plate 703 to move together. The movement of the pushing plate 703 will drive the pushing cylinder 702 to move. Therefore, the pushing plate 703 moves as a whole obliquely upward. When the pushing cylinder 702 moves and the second mounting plate 701 slides on the top of the first connecting plate 502, and the second mounting plate 701 slides towards the first mounting plate 501 due to the movement of the pushing cylinder 702, the limiting rod 12 will be pushed into the limiting hole, and the first pushing spring 13 on the limiting rod 12 will be compressed and in a compressed state.

[0061] While pushing the pushing plate 703 upward, it will drive the two second connecting plates 704 to move obliquely upward. The two connecting rods 705 will drive the first driving gear 706 to move obliquely upward together. The first driving gear 706 remains meshed with the first rack 707 on one side while moving upward. Therefore, the first driving gear 706 will rotate while moving upward, and in turn drive the connecting rod 705 to rotate and rise. When the connecting rod 705 rotates and rises, it will cause the third mounting plate 601 to rotate and rise. The third mounting plate 601 will rotate and rise with the connecting rod 705 as the center, and the second vacuum suction cup 602 will rotate and rise. The rotation and lifting of the second vacuum suction cup 602 can lift the four corners of the film to be processed, reducing the influence of vacuum adsorption and electrostatic adsorption on multiple films to be processed.

[0062] The reason why the first rack 707 can remain meshed with the moving first driving gear 706 is that initially, the second pushing spring 18 expands to push the second sliding block 17, causing the second sliding block 17 to drive the first rack 707 to remain in contact with the first driving gear 706. When the first driving gear 706 moves obliquely upward with the connecting rod 705, it not only remains meshed with the first rack 707 but also pushes the first rack 707 to move along the second sliding groove 15. At this time, although the second pushing spring 18 will be compressed, it will keep the first rack 707 meshed with the first driving gear 706 to prevent them from separating.

[0063] While the second mounting plate 701 moves backward along the first sliding groove 10, the second rack 20 will be driven to move accordingly. At this time, the second driving gears 23 meshed on both sides of the second rack 20 will rotate. The rotation of the second driving gears 23 will cause the rotating column 21 to rotate, and the rotation of the rotating column 21 will cause the wire reel 24 to rotate and wind up the steel wire 25. One end of the steel wire 25 is wound up by the wire reel 24, and due to the shortening of the overall length, it will pull the other end. The support plate 904 connected to the other end of the steel wire 25 will rotate with the connecting column 903 as the center. The rotating connecting column 903 will tighten the torsion spring inside the rotating block 902. One end of the support plate 904 will insert from the position where the film is lifted to support the bottom of the film. The sponge roller 905 will prevent the support plate 904 from scratching the film to be processed.

[0064] At this time, the preliminary work of loading the film to be processed has been completed. The film is sucked by the first vacuum suction cup 504, the four corners of the film are sucked and lifted by the second vacuum suction cup 602, and the bottom of the film is supported by the support plate 904 to prevent it from falling.

[0065] After the two-axis linear module 4 moves the support column 19 to the processing position, it descends, causing the pallet 904 to contact the surface of the processing table. Subsequently, the pushing end of the pushing cylinder 702 is pushed out. At this time, the rolling columns 708 on the pushing plate 703 will not contact and be pushed by the inclined surface of the limiting plate 802. At this time, the driving force on the pushing plate 703 will disappear, resulting in the disappearance of the driving forces on the second mounting plate 701 and the pushing cylinder 702. After the force for moving the second mounting plate 701 disappears, the first pushing spring 13 unfolds and pushes the second mounting plate 701 along the first sliding groove 10 to the initial position for resetting.

[0066] During the resetting process, the second mounting plate 701 will drive the pushing cylinder 702 and the pushing plate 703 to reset together, so that the two second connecting plates 704 drive the connecting rod 705 and the first driving gear 706 to descend and reset. In this way, the two connecting rods 705 will rotate reversely and descend, causing the second vacuum suction cup 602 to reset to a vertical state and maintain the same height as the first vacuum suction cup 504, so that the adsorbed film will not be deformed when it is put down.

[0067] Moreover, during the resetting process of the second mounting plate 701, the second rack 20 will also be pushed out of the protective cover 801, causing the two second driving gears 23 to rotate reversely, and the rotating column 21 to drive the wire reel 24 to rotate reversely as well, releasing the wound part of the steel wire 25, thereby increasing the available length of the entire steel wire 25. Once the available length of the steel wire 25 increases, the pulling force on the pallet 904 will be lost. After the rotational force provided to the pallet 904 disappears, the torsion spring inside the rotating block 902 will unwind, driving the connecting column 903 to rotate reversely, and finally causing the pallet 904 to rotate reversely and move out from the bottom of the processed film, avoiding affecting the placement of the processed film.

[0068] At this time, the two-axis linear module 4 moves the support column 19 to the top of the loading table 2, and then it can prepare for the next loading operation.

[0069] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a laser film cutting equipment, comprising a laser film cutting machine (1), a feeding table (2) is arranged on one side of the laser film cutting machine (1), a gantry (3) is arranged above the laser film cutting machine (1), and a two-axis linear module (4) is installed on one side of the gantry (3), characterized in that: A support column (19) is fixedly installed on the slide table of the two-axis linear module (4). A first suction cup assembly for adsorbing the film during loading is installed at the bottom end of the support column (19). Second suction cup assemblies capable of sucking and lifting both ends of the film are symmetrically arranged at the four corners of the first suction cup assembly. Driving assemblies for driving the adjacent second suction cup assemblies to operate are symmetrically arranged on both sides of the first suction cup assembly. A protection assembly for protecting a plurality of second suction cup assemblies is provided at the top of the first suction cup assembly. Lifting assemblies capable of supporting the bottom of the film to be cut are provided at the four corners of the protection assembly. The first suction cup assembly includes a first mounting plate (501) installed at the bottom end of the support column (19). A first connecting plate (502) is fixedly installed at the bottom of the first mounting plate (501). A plurality of mounting rods (503) are fixedly installed at the bottom of the first connecting plate (502). A plurality of first vacuum suction cups (504) are fixedly installed on each of the mounting rods (503). The protection assembly includes a protective cover (801) fixedly sleeved on the support column (19). Restricting plates (802) arranged in a triangular shape are symmetrically installed on the inner walls of the two sides of the protective cover (801) away from the first mounting plate (501). The driving assembly includes a second mounting plate (701) slidably arranged on the top of the first connecting plate (502). The second mounting plate (701) is arranged in an "L" shape. A pushing cylinder (702) is fixedly installed on one side of the second mounting plate (701). A pushing plate (703) is fixedly installed at the pushing end of the pushing cylinder (702). Two rolling columns (708) are rotatably installed on the side of the pushing plate (703) close to the restricting plate (802). The cylindrical surfaces of the two rolling columns (708) are in contact with the inclined surfaces of the adjacent restricting plates (802). Second connecting plates (704) are fixedly installed at both ends of the bottom of the pushing plate (703). The two second connecting plates (704) are both arranged in an "L" shape. Connecting rods (705) are rotatably installed on one side of the bottom ends of the two second connecting plates (704). First driving gears (706) are fixedly sleeved on the two connecting rods (705). First racks (707) are meshed and connected to one side of the two first driving gears (706). The second suction cup assembly includes a third mounting plate (601) fixedly installed at one end of the connecting rod (705). A second vacuum suction cup (602) is fixedly installed at the end of the third mounting plate (601) away from the connecting rod (705).

2. The feeding device for a laser film cutting device according to claim 1, wherein: At both ends of the top of the first connecting plate (502), first sliding grooves (10) are symmetrically formed. Inside both of the first sliding grooves (10), first sliding blocks (11) are slidably installed. At the tops of both of the first sliding blocks (11), they are fixedly installed with the bottom of the adjacent second mounting plate (701). On both sides of the first mounting plate (501) close to the second mounting plate (701), two limiting holes are formed. On one side of both of the second mounting plates (701) close to the first mounting plate (501), two limiting rods (12) are fixedly installed. One end of each of the two limiting rods (12) extends into the interior of the adjacent limiting hole. On each of the limiting rods (12), a first pushing spring (13) is sleeved. The two ends of each of the first pushing springs (13) are respectively abutted against the adjacent second mounting plate (701) and the first mounting plate (501).

3. The feeding device for a laser film cutting device according to claim 1, characterized in that: On both sides of the bottom of the first connecting plate (502), third connecting plates (14) are symmetrically installed. At both ends of the top of both of the third connecting plates (14), second sliding grooves (15) are formed. Inside each of the second sliding grooves (15), a sliding rod (16) is fixedly installed. On each of the sliding rods (16), a second sliding block (17) is slidably sleeved. At the top ends of both of the second sliding blocks (17), they are fixedly installed with the bottom end of the adjacent first rack (707). On each of the sliding rods (16), a second pushing spring (18) is sleeved. The two ends of each of the second pushing springs (18) are respectively abutted against the adjacent second sliding block (17) and the inner wall of the second sliding groove (15).

4. The feeding device for a laser film cutting device according to claim 1, wherein: On one side of both of the second mounting plates (701) close to the limiting plate (802), second racks (20) are fixedly installed. One end of each of the two second racks (20) far from the adjacent second mounting plate (701) penetrates through the protective cover (801). On both sides of one end of each of the second racks (20) located outside the protective cover (801), a rotating column (21) is provided. On the cylindrical surface of each of the rotating columns (21), a fixing block (22) is rotatably sleeved. Each of the fixing blocks (22) is fixedly installed with the protective cover (801). At the top end of each of the rotating columns (21), a second driving gear (23) is fixedly installed. On both sides of the second rack (20) close to the second driving gear (23), teeth are formed. Each of the second driving gears (23) is meshed and connected with the adjacent second rack (20). At the bottom end of each of the rotating columns (21), a wire winder (24) is fixedly sleeved. On each of the wire winders (24), a steel wire (25) is wound and connected. At the four corners of the bottom side of the protective cover (801), mounting columns (26) are fixedly installed. On the cylindrical surface of each of the mounting columns (26), a rotating disc (27) is rotatably sleeved. At the bottom side of each of the rotating discs (27), a limiting disc (28) is fixedly installed. One end of the steel wire (25) bypasses the rotating disc (27).

5. The feeding device for a laser film cutting device according to claim 4, wherein: The lifting component includes a fourth mounting plate (901) fixedly installed on the inner wall of one side of the protective cover (801). A rotating block (902) is installed on the bottom side of the fourth mounting plate (901). A torsion spring is provided inside the rotating block (902). A connecting column (903) is installed on the bottom side of the rotating block (902). A support plate (904) arranged in an "L" shape is fixedly sleeved on the connecting column (903). A plurality of sponge rollers (905) are symmetrically and rotatably installed on the upper and lower sides of the straight edge of the support plate (904). One end of the steel wire (25) is fixedly installed at one end of the support plate (904) close to the connecting column (903).

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