Edge folding device for laser composite film processing

Abstract

The invention belongs to the field of film processing equipment, and provides a laser composite film processing and folding device which comprises a workbench, and two first transmission rollers, two second transmission rollers, two third transmission rollers and two fourth transmission rollers are sequentially and rotationally mounted on the workbench. The two first transmission rollers, the two second transmission rollers, the two third transmission rollers and the two fourth transmission rollers are symmetrically arranged about the center face of the workbench. By arranging the first transmission roller, the second transmission roller, the third transmission roller and the fourth transmission roller with the included angles being 45 degrees, 90 degrees, 135 degrees and 180 degrees in sequence, the edge of the laser composite film is sequentially deformed according to different angles, so that edge folding operation can be achieved, discharging is conducted on one side of the workbench, collecting is conducted on the other side of the workbench, and the production efficiency is improved. After the laser composite film passes through the first transmission roller, the second transmission roller, the third transmission roller and the fourth transmission roller, edge folding can be achieved, the device can conduct continuous machining, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of film processing equipment, and in particular relates to a laser composite film processing folding device. Background Art

[0002] Laser composite films generally use computer dot lithography technology, 3D true color holographic technology, multiple and dynamic imaging technology, etc., and transfer holographic images with rainbow dynamic and three-dimensional effects to PET, BOPP, PVC or coated substrates through molding, and then use composite, hot stamping, transfer and other methods to make the surface of the product packaging obtain a certain laser effect.

[0003] When using laser composite film to package objects, the edge of the packaging film needs to have strong tensile strength. Before using the laser composite film for packaging, the edge of the laser composite film is often folded and thickened.

[0004] In response to the above technical problems, the applicant has retrieved some prior arts, such as a Chinese invention patent with patent publication number CN112060554B, which is a membrane folding device, which folds the edge of the membrane through an adsorption mechanism, a supporting mechanism, a folding mechanism and a positioning mechanism. However, the raw material processed by the device is a whole piece of cut membrane. After folding the edge, the membrane needs to be replaced and then folded again, which makes it impossible to fold the membrane continuously and the processing efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to provide a laser composite film processing folding device, aiming to solve the technical problem that the film cannot be folded continuously in the prior art.

[0006] The present invention is implemented as follows: a laser composite film processing folding device includes a workbench, on which two first transmission rollers, two second transmission rollers, two third transmission rollers and two fourth transmission rollers are rotatably installed in sequence, and the two first transmission rollers, two second transmission rollers, two third transmission rollers and two fourth transmission rollers are symmetrically arranged with respect to the center plane of the workbench, and the distances between the two first transmission rollers, two second transmission rollers, two third transmission rollers and two fourth transmission rollers are all smaller than the width of the laser composite film, and the angles between the axes of the first transmission rollers, the second transmission rollers, the third transmission rollers and the fourth transmission rollers and the upper surface of the workbench are 45°, 90°, 135° and 180° respectively, so that the edge of the laser composite film laid flat on the workbench is gradually flipped 180° to achieve the folding of the laser composite film.

[0007] Further technical solution: the workbench is also equipped with a flattening mechanism, the flattening mechanism includes a second door frame fixedly connected to the workbench, the second door frame is threadedly connected with a second adjusting screw, the second adjusting screw is rotatably connected with a lifting cross bar at one end close to the workbench, the lifting cross bar is fixedly connected with a second guide rod, the second guide rod is passed through a pipe and slidably installed on the second door frame; A fixed shaft is fixedly installed on the lifting crossbar, and flattening components are installed on both ends of the fixed shaft. The flattening components are used to push the folds of the laser composite film from the middle to the edge position, thereby flattening the folds of the laser composite film and improving the folding quality of the laser composite film.

[0008] Further technical solution: the flattening assembly includes a conveying roller, which is rotatably mounted on a fixed shaft, a receiving groove is provided on the side of the conveying roller, a light rod is fixedly connected to the inside of the receiving groove, a slide plate is slidably mounted on the light rod, a second compression spring is connected between the side of the slide plate away from the center of the workbench and the side wall of the receiving groove, a plurality of fourth guide rods are penetrated and slidably mounted on the slide plate, a movable groove for the movement of the fourth guide rods is provided on the side wall of the receiving groove, a plurality of fourth guide rods are fixedly connected to a flattening block at one end away from the axis of the conveying roller, a third compression spring is connected between a plurality of the flattening blocks and the slide plate, initially, a plurality of the flattening blocks extend out of the second compression spring, a guide wedge block is fixedly connected to the side wall of the receiving groove close to the center of the workbench, and the inclined surface of the guide wedge block is tangent to the edge of the flattening block at the end of the slide plate.

[0009] Further technical solution: The lengths of the plurality of third compression springs decrease successively from the center position of the workbench to the edge position of the workbench, and as the plurality of flattening blocks slowly descend, the plurality of flattening blocks flatten the wrinkles of the laser composite film successively.

[0010] Further technical solution: the flattening assembly also includes a locking mechanism, the locking mechanism includes a mounting groove provided inside the fixed shaft, a push plate is slidably installed inside the mounting groove, a magnetic strip is fixedly connected to the side of the push plate close to the fourth guide rod, a card strip is adsorbed on the side of the magnetic strip, a plurality of strong magnets are arranged on the side of the card strip close to the magnetic strip, a through hole for the card strip to pass through is provided on the conveying roller, a plurality of card slots are provided on the sides of the fourth guide rods close to the card strip, and a fourth compression spring is connected between the side of the push plate away from the magnetic strip and the mounting groove; Since the lengths of the plurality of third compression springs are different, the positions of the card slots on the fourth guide rods are also different. Specifically, the distance from each card slot to the card strip is equal to the distance from the flattening block to the slide plate. When all the flattening blocks are fully retracted into the storage slots, the card strip is inserted into all the card slots under the elastic force of the fourth compression spring, so that the card strip fixes the fourth guide rod to prevent the flattening block from popping out again. In order to prevent the conveying roller from being blocked by the card strip and unable to rotate, the distance from the side of the card slot away from the card strip to the surface of the fixed shaft is not less than the width of the card strip, so that when the conveying roller rotates, the conveying roller can drive the card strip to rotate together, and when the through hole is connected to the mounting groove again, the card strip is attracted by the magnetic strip again; Since there are two flattening assemblies, in order to facilitate the control of the push plate and the release of the fixing of the fourth guide rod by the clamping strip, a shifting frame is fixedly connected between the two push plates, and the shifting frame passes through the fixed shaft and the lifting cross bar.

[0011] A further technical solution is: the conveying roller is arranged between two second transmission rollers; After the flattening assembly flattens the laser composite film, in order to prevent the laser composite film from wrinkling again, both ends of the lifting crossbar are equipped with side pressure mechanisms, and the side pressure mechanism includes a sliding head slidably installed at the end of the lifting crossbar, a first compression spring is connected between the sliding head and the lifting crossbar, and a side pressure roller is rotatably installed at the bottom of the sliding head. Under the action of the first compression spring, the side pressure roller clamps the edge of the laser composite film on the second transmission roller, thereby preventing the laser composite film from wrinkling; In order to facilitate the installation of the laser composite film, a fixed baffle is fixedly connected to the sliding head, and a movable hole for the fixed baffle to move is opened on the lifting cross bar.

[0012] The camming mechanism is connected between the two fixed baffles and the shift rack, and the linkage mechanism includes a linkage plate fixedly connected to one end of the shift rack, and baffle rods and connecting rods are fixedly connected at both ends of the linkage plate and on the side surfaces close to the fixed baffle plate, and the two connecting rods are located between the two baffle rods, and when the card strip is inserted into the card slot, a gap is left between the end of the baffle rod and the side wall of the fixed baffle plate, and the width of the gap is less than the depth of the card slot, so that when the card strip is blocked by the fourth guide rod, the baffle rod will block the fixed baffle plate, thereby leaving space for installing the laser composite film between the side pressure roller and the second transmission roller, and the connecting rod is "L"-shaped, and the two sides of the fixed baffles facing each other are fixedly connected with wedge-shaped push blocks, and the inclined surfaces of the wedge-shaped push blocks are inclined in the direction away from the card strip, and the ends of the two connecting rods close to the wedge push blocks are fixedly connected with guide cylinders; In order to facilitate the simultaneous control of the two side pressure rollers, the linkage mechanism also includes an intermediate gear, which is rotatably mounted on the lifting cross bar. A first rack is fixedly connected to the side surface of one of the fixed baffles, and a second rack is fixedly connected to the side surface of the other fixed baffle. The first rack and the second rack are both meshed with the intermediate gear, and the first rack and the second rack are located on both sides of the intermediate gear.

[0013] Further technical solution: an auxiliary folding mechanism is also installed on the workbench, and the auxiliary folding mechanism is located between the third transmission roller and the fourth transmission roller; The auxiliary folding mechanism includes a third door frame fixedly connected to the workbench, a third adjusting screw is threadedly connected to the third door frame, and the third adjusting screw is rotatably connected to a lifting plate at one end close to the workbench, and a third guide rod is fixedly connected to the lifting plate, and the third guide rod passes through and is slidably installed on the third door frame. A limit plate is fixedly installed on the bottom of the lifting plate through a fixed rod, and both ends of the limit plate are arranged in an arc shape to prevent it from scratching the laser composite film. At the same time, the thickness of the limit plate is made as small as possible, such as the thickness of the limit plate is not more than twice the thickness of the laser composite film, so that the position of the folding of the laser composite film is more precise.

[0014] Further technical solution: A material discharge mechanism and a material collection mechanism are also installed on the workbench, the material discharge mechanism is located on the side of the first transmission roller away from the second transmission roller, and the material collection mechanism is located on the side of the fourth transmission roller away from the third transmission roller.

[0015] Further technical solution: two position-limiting transmission mechanisms are also installed on the workbench, one of which is installed between the unloading mechanism and the first transmission roller, and the other is installed between the fourth transmission roller and the receiving mechanism; The limit transmission mechanism includes a first door frame fixedly installed on the workbench, a first adjusting screw is threadedly connected to the first door frame, an end of the first adjusting screw close to the workbench is rotatably connected to a lifting frame, a first guide rod is fixedly connected to the lifting frame, the first guide rod passes through and is slidably installed on the first door frame, and a limit roller is rotatably installed on the side of the lifting frame close to the workbench.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, by setting the first transmission roller, the second transmission roller, the third transmission roller and the fourth transmission roller with angles of 45°, 90°, 135° and 180° respectively, deforms the edge of the laser composite film in sequence according to different angles, so as to realize the folding operation, discharges the material on one side of the workbench and collects the material on the other side, and the laser composite film can be folded after passing through the first transmission roller, the second transmission roller, the third transmission roller and the fourth transmission roller. The device can perform continuous processing, which greatly improves the processing efficiency; 2. The present invention, by setting a flattening mechanism, pushes the wrinkles on the laser composite film from the center position of the workbench to the edge position of the workbench through the flattening block, and restores the flatness of the laser composite film under its own toughness, thereby flattening the wrinkles that appear in the folding process of the laser composite film, avoiding folding errors, and improving the processing quality of the laser composite film; 3. The present invention reduces the length of the plurality of third compression springs from the center of the workbench to the edge of the workbench in sequence, so that the plurality of flattening blocks can flatten the wrinkles of the laser composite film in sequence and drive the wrinkles at the center of the workbench to the edge of the workbench, thereby avoiding the situation that the wrinkles cannot be flattened due to the plurality of flattening blocks descending together and compacting the wrinkles; 4. The present invention provides a locking mechanism. After the flattening block flattens the laser composite film, the locking mechanism fixes the flattening block to the conveying roller so that it rotates together with the conveying roller, thereby avoiding the situation where the conveying roller cannot rotate due to the obstruction of the flattening block, reducing the friction between the conveying roller and the laser composite film, and avoiding the conveying roller from scratching the laser composite film; 5. The present invention arranges the conveying roller between the two second transmission rollers and arranges side pressure mechanisms at both ends of the lifting crossbar. After the laser composite film is flattened, the laser composite film is pressed against the second transmission roller by the side pressure mechanism to prevent the laser composite film from wrinkling again. 6. The present invention sets up a linkage mechanism, and only needs to operate the fixed baffle to move the flattening block together, so that the whole mechanism returns to its initial state. When the flattening block is completely retracted into the interior of the conveying roller, the side pressure roller will automatically press the laser composite film onto the second transmission roller, making the device easier to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the flattening mechanism in the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the flattening mechanism in the present invention.

[0020] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of point B in the middle.

[0021] Figure 5 It is a schematic diagram of the installation structure of the flattening component and the locking mechanism in the present invention.

[0022] Figure 6 It is a schematic diagram of the installation structure of the flattening block in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the locking mechanism in the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the card strip in the present invention.

[0025] Fig. 9 It is a schematic diagram of the installation structure of the shifting frame in the present invention.

[0026] Fig.10 For the present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0027] Fig.11 It is a structural schematic diagram of the auxiliary folding mechanism in the present invention.

[0028] Fig.12 It is a schematic diagram of the structure of the position-limiting transmission mechanism in the present invention.

[0029] In the attached drawings: 1, material unloading rack; 2, material roller; 3, limited transmission mechanism; 31, first door frame; 32, lifting frame; 33, first guide rod; 34, first adjusting screw; 35, limited roller; 4, workbench; 5, first transmission roller; 6, flattening mechanism; 61, second door frame; 62, side pressure mechanism; 621, side pressure roller; 622, sliding head; 623, fixed baffle; 624, first compression spring; 625, movable hole; 63, fixed shaft; 64, flattening assembly; 641, second compression spring; 642, storage slot; 643, slide plate; 644, flattening block; 645, transmission roller; 646, fourth guide rod; 647, third compression spring; 648, guide wedge block; 649, light rod; 6410, movable slot; 65, lifting crossbar Rod; 66, second guide rod; 67, second adjusting screw; 68, linkage mechanism; 681, linkage plate; 682, stop rod; 683, wedge-shaped push block; 684, guide cylinder; 685, connecting rod; 686, first rack; 687, intermediate gear; 688, second rack; 69, locking mechanism; 691, card strip; 692, card slot; 693, fourth compression spring; 694, push plate; 695, magnetic strip; 696, mounting slot; 697, strong magnet; 698, pull rack; 7, second transmission roller; 8, third transmission roller; 9, auxiliary folding mechanism; 91, third door frame; 92, third guide rod; 93, lifting plate; 94, third adjusting screw; 95, fixing rod; 96, limit plate; 10, fourth transmission roller; 11, material receiving mechanism. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] like Figure 1As shown, a laser composite film processing folding device provided by the present invention includes a workbench 4, on which two first drive rollers 5, two second drive rollers 7, two third drive rollers 8 and two fourth drive rollers 10 are rotatably installed in sequence, and the two first drive rollers 5, two second drive rollers 7, two third drive rollers 8 and two fourth drive rollers 10 are symmetrically arranged about the center plane of the workbench 4, and the distances between the two first drive rollers 5, two second drive rollers 7, two third drive rollers 8 and two fourth drive rollers 10 are all smaller than the width of the laser composite film, and the angles between the axes of the first drive rollers 5, the second drive rollers 7, the third drive rollers 8 and the fourth drive rollers 10 and the upper surface of the workbench 4 are 45°, 90°, 135° and 180° respectively, so that the edge of the laser composite film laid on the workbench 4 is gradually flipped 180° to achieve the folding of the laser composite film.

[0033] like Figure 1-Figure 6 As shown, a laser composite film processing folding device provided by the present invention, because the laser composite film has greater toughness, when the edge of the laser composite film is turned over, wrinkles are likely to appear in the middle part of the laser composite film, which will lead to an increase in its folding error and reduce the quality of the laser composite film. Therefore, in this embodiment, a flattening mechanism 6 is also installed on the workbench 4, and the flattening mechanism 6 includes a second door frame 61 fixedly connected to the workbench 4, and a second adjusting screw 67 is threadedly connected to the second door frame 61. The second adjusting screw 67 is rotatably connected to the end of the workbench 4. A lifting cross bar 65 is fixedly connected to the lifting cross bar 65, and the second guide rod 66 is passed through a pipe and slidably installed on the second door frame 61; A fixed shaft 63 is fixedly installed on the lifting cross bar 65, and flattening components 64 are installed at both ends of the fixed shaft 63. The flattening components 64 are used to push the folds of the laser composite film from the middle to the edge position, thereby flattening the folds of the laser composite film and improving the folding quality of the laser composite film.

[0034] like Figure 1-Figure 6As shown, a laser composite film processing folding device provided by the present invention, in this embodiment, the flattening component 64 includes a conveying roller 645, the conveying roller 645 is rotatably mounted on the fixed shaft 63, a receiving groove 642 is provided on the side of the conveying roller 645, a light rod 649 is fixedly connected to the inside of the receiving groove 642, a slide plate 643 is slidably mounted on the light rod 649, a second compression spring 641 is connected between the side of the slide plate 643 away from the center of the workbench 4 and the side wall of the receiving groove 642, and a plurality of fourth guide rods 646 are penetrated and slidably mounted on the slide plate 643. A movable groove 6410 for the fourth guide rod 646 to move is opened on the side wall of the receiving groove 642, and a flattening block 644 is fixedly connected to one end of the plurality of fourth guide rods 646 away from the axis of the conveying roller 645, and a third compression spring 647 is connected between the plurality of flattening blocks 644 and the slide plate 643. Initially, the plurality of flattening blocks 644 extend out of the second compression spring 641, and a guide wedge block 648 is fixedly connected to the side wall of the receiving groove 642 near the center of the workbench 4, and the inclined surface of the guide wedge block 648 is tangent to the edge of the flattening block 644 at the end of the slide plate 643.

[0035] After installing the laser composite film, rotate the second adjusting screw 67, the second adjusting screw 67 drives the lifting cross bar 65 to descend, the lifting cross bar 65 drives the fixed shaft 63 and the conveying roller 645 to descend, the conveying roller 645 drives the flattening block 644 to descend through the slide plate 643 and the third compression spring 647, when the flattening block 644 is blocked by the laser composite film, under the reaction force, the guide wedge block 648 will squeeze the flattening block 644 to move to the outside of the workbench 4, so that the flattening block 644 pushes the wrinkles on the laser composite film from the center position of the workbench 4 to the edge position of the workbench 4, and under the toughness of the laser composite film itself, it is restored to flatness.

[0036] like Figure 2-Figure 4 and Figure 6 As shown, a laser composite film processing folding device provided by the present invention is provided. In order to improve the flattening effect and avoid the multiple flattening blocks 644 from descending together, thereby compacting the wrinkles and causing the wrinkles to be unable to be flattened, in this embodiment, the lengths of the multiple third compression springs 647 decrease successively from the center position of the workbench 4 to the edge position of the workbench 4. As the multiple flattening blocks 644 slowly descend, the multiple flattening blocks 644 flatten the wrinkles of the laser composite film in turn.

[0037] like Figure 2-Figure 9As shown, a laser composite film processing folding device provided by the present invention, after the flattening block 644 flattens the wrinkles of the laser composite film, multiple flattening blocks 644 are still in an active state, and when the laser composite film moves, it will drive the rotation of the conveying roller 645. When the flattening block 644 moves to the side of the second door frame 61, under the action of the third compression spring 647, multiple flattening blocks 644 will still pop out, and due to the obstruction of the flattening block 644, the conveying roller 645 cannot rotate with the laser composite film, which increases the friction between the conveying roller 645 and the laser composite film, and the conveying roller 645 may also scratch the laser composite film, causing the quality of the laser composite film to decrease. Therefore, in this embodiment, the flattening component 64 also includes a locking mechanism 69, the locking mechanism 69 includes a mounting groove 696 provided inside the fixed shaft 63, a push plate 694 is slidably installed inside the mounting groove 696, a magnetic strip 695 is fixedly connected to the side of the push plate 694 close to the fourth guide rod 646, a card strip 691 is adsorbed on the side of the magnetic strip 695, a plurality of strong magnets 697 are arranged on the side of the card strip 691 close to the magnetic strip 695, a through hole is provided on the conveying roller 645 for the card strip 691 to pass through, a plurality of card slots 692 are provided on the sides of the fourth guide rods 646 close to the card strip 691, and a fourth compression spring 693 is connected between the side of the push plate 694 away from the magnetic strip 695 and the mounting groove 696; Since the lengths of the plurality of third compression springs 647 are different, the positions of the slots 692 on the fourth guide rods 646 are also different. Specifically, the distance from each slot 692 to the clip strip 691 is equal to the distance from the flattening block 644 to the slide plate 643. When all the flattening blocks 644 are fully retracted into the receiving groove 642, the clip strip 691 is inserted into all the slots 692 under the elastic force of the fourth compression spring 693, so that the clip strip 691 fixes the fourth guide rod 646 to prevent the flattening block 644 from popping out again. In order to prevent the conveying roller 645 from being blocked by the clamping strip 691 and unable to rotate, the distance from the side of the clamping slot 692 away from the clamping strip 691 to the surface of the fixed shaft 63 is not less than the width of the clamping strip 691, so that when the conveying roller 645 rotates, the conveying roller 645 can drive the clamping strip 691 to rotate together, and when the through hole is connected to the mounting slot 696 again, the clamping strip 691 is attracted by the magnetic strip 695 again; Since there are two flattening assemblies 64 , in order to facilitate the control of the push plates 694 and the release of the fixing of the fourth guide rod 646 by the clamping strip 691 , a shifting frame 698 is fixedly connected between the two push plates 694 , and the shifting frame 698 passes through the fixed shaft 63 and the lifting cross bar 65 .

[0038] When releasing the fixation of the card strip 691 on the fourth guide rod 646, first rotate the conveying roller 645 to the direction of the storage slot 642 downward, so that the movable slot 6410 is connected with the installation slot 696 through the through hole, and then push the shift rack 698. The shift rack 698 drives the two push plates 694 to move. The push plates 694 pull the card strip 691 out of the card slot 692 through the magnetic strip 695. Under the action of the third compression spring 647, the flattening block 644 is ejected from the storage slot 642. Then release the shift rack 698. Under the action of the fourth compression spring 693, the card strip 691 abuts against the fourth guide rod 646 again.

[0039] like Figure 1-Figure 3 and Fig.10 As shown, a laser composite film processing folding device provided by the present invention is shown. It can be seen from the flipping path of the laser composite film that when the edge of the laser composite film is flipped 90°, the wrinkles in the middle of the laser composite film are the most. Therefore, in this embodiment, the conveying roller 645 is arranged between the two second transmission rollers 7; After the flattening assembly 64 flattens the laser composite film, in order to prevent the laser composite film from wrinkling again, both ends of the lifting cross bar 65 are installed with side pressure mechanisms 62, and the side pressure mechanism 62 includes a sliding head 622 slidably installed at the end of the lifting cross bar 65, and a first compression spring 624 is connected between the sliding head 622 and the lifting cross bar 65. A side pressure roller 621 is rotatably installed at the bottom of the sliding head 622. Under the action of the first compression spring 624, the side pressure roller 621 clamps the edge of the laser composite film on the second transmission roller 7, thereby preventing the laser composite film from wrinkling; In order to facilitate the installation of the laser composite film, a fixed baffle 623 is fixedly connected to the sliding head 622 , and a movable hole 625 for the fixed baffle 623 to move is opened on the lifting cross bar 65 .

[0040] The fixed baffle 623 is pushed, and the fixed baffle 623 drives the sliding head 622 away from the second transmission roller 7 , so as to facilitate the edge of the laser composite film to pass through the gap between the side pressure roller 621 and the second transmission roller 7 .

[0041] like Figure 2-Figure 3 and Figure 9-10As shown, a laser composite film processing folding device provided by the present invention is provided. In order to facilitate the control of the two side pressure mechanisms 62 and the two flattening components 64, in this embodiment, a linkage mechanism 68 is connected between the two fixed baffles 623 and the shifting frame 698. The linkage mechanism 68 includes a linkage plate 681 fixedly connected to one end of the shifting frame 698. The two ends of the linkage plate 681 and the side close to the fixed baffle 623 are fixedly connected with a baffle rod 682 and a connecting rod 685. The two connecting rods 685 are located between the two baffle rods 682. When the clamping strip 691 is inserted into the clamping slot 692, the end of the baffle rod 682 and the fixed baffle are connected. A gap is left between the side walls of the baffle 623, and the width of the gap is smaller than the depth of the card slot 692, so that when the card strip 691 is blocked by the fourth guide rod 646, the baffle rod 682 will block the fixed baffle 623, thereby leaving a space for installing the laser composite film between the side pressure roller 621 and the second transmission roller 7, and the connecting rod 685 is "L"-shaped, and the two sides of the fixed baffles 623 facing each other are fixedly connected with a wedge-shaped push block 683, and the inclined surface of the wedge-shaped push block 683 is inclined in the direction away from the card strip 691, and the ends of the two connecting rods 685 close to the wedge-shaped push block 683 are fixedly connected with a guide cylinder 684; In order to facilitate the simultaneous control of the two side pressure rollers 621, the linkage mechanism 68 also includes an intermediate gear 687, which is rotatably mounted on the lifting cross bar 65. A first rack 686 is fixedly connected to the side of one of the fixed baffles 623, and a second rack 688 is fixedly connected to the side of the other fixed baffle 623. The first rack 686 and the second rack 688 are both meshed with the intermediate gear 687, and the first rack 686 and the second rack 688 are located on both sides of the intermediate gear 687.

[0042] Push a fixed baffle 623, the fixed baffle 623 drives the intermediate gear 687 to rotate through the first rack 686, and the intermediate gear 687 drives the other fixed baffle 623 to move in the opposite direction through the second rack 688; In the initial state (the card strip 691 is blocked by the fourth guide rod 646, and the fixed baffle 623 is blocked by the baffle rod 682), the laser composite film is then installed. After the installation is completed, the second adjusting screw 67 is rotated, and the second adjusting screw 67 drives the conveying roller 645 and the flattening block 644 to descend, and the flattening block 644 flattens the wrinkles of the laser composite film. When the conveying roller 645 contacts the surface of the laser composite film, the plurality of flattening blocks 644 are all retracted into the receiving groove 642, and the card strip 691 is inserted into all the card grooves 692. At the same time, the push plate 694 drives the linkage plate 681 to move through the shifting frame 698, and the linkage plate 681 drives the baffle rod 682 away from the fixed baffle 623, and the baffle rod 682 no longer blocks the fixed baffle 623. Under the action of the first compression spring 624, the sliding head 622 drives the side pressure roller 621 to press the laser composite film onto the second transmission roller 7. After the laser composite film is folded, the fixed baffle 623 is pushed, and the fixed baffle 623 drives the wedge-shaped push block 683 to cross the baffle rod 682 and squeeze the guide cylinder 684. The guide cylinder 684 drives the linkage plate 681 away from the card slot 692 through the connecting rod 685. The linkage plate 681 drives the two push plates 694 to move through the shift rack 698. The push plate 694 drives the card strip 691 to escape from the card slot 692 through the magnetic strip 695. Under the action of the third compression spring 647, all the flattening blocks 644 are ejected. If the fixed baffle 623 is released, the linkage plate 681 will also be released, and the linkage plate 681 drives the card strip 691 to abut against the fourth guide rod 646, and the fixed baffle 623 will be blocked by the baffle rod 682, so that the entire mechanism returns to its initial state, which is convenient for flattening the laser composite film next time.

[0043] like Figure 1 and Fig.11 As shown, a laser composite film processing folding device provided by the present invention, in the process of the laser composite film moving from the third transmission roller 8 to the fourth transmission roller 10, its shape changes greatly, in order to improve the quality of the laser composite film folding, in this embodiment, the workbench 4 is also equipped with an auxiliary folding mechanism 9, the auxiliary folding mechanism 9 is located between the third transmission roller 8 and the fourth transmission roller 10; The auxiliary folding mechanism 9 includes a third door frame 91 fixedly connected to the workbench 4, and a third adjusting screw 94 is threadedly connected to the third door frame 91. The third adjusting screw 94 is rotatably connected to a lifting plate 93 at one end close to the workbench 4. A third guide rod 92 is fixedly connected to the lifting plate 93. The third guide rod 92 penetrates and is slidably installed on the third door frame 91. A limiting plate 96 is fixedly installed on the bottom of the lifting plate 93 through a fixing rod 95. The two ends of the limiting plate 96 are arranged to be arc-shaped to prevent it from scratching the laser composite film. At the same time, the thickness of the limiting plate 96 is made as small as possible, such as the thickness of the limiting plate 96 is not more than twice the thickness of the laser composite film, so that the position of the folding of the laser composite film is more precise.

[0044] When installing the laser composite film, the limiting plate 96 is pressed onto the laser composite film, and the folded edge of the laser composite film is extended from above the end of the limiting plate 96. This can avoid wrinkles in the middle of the laser composite film and make the folded edge width of the laser composite film more precise, thereby improving the folded edge quality of the laser composite film.

[0045] like Figure 1 As shown, a laser composite film processing folding device provided by the present invention, in this embodiment, a material discharge mechanism and a material receiving mechanism 11 are also installed on the workbench 4, the material discharge mechanism is located on the side of the first transmission roller 5 away from the second transmission roller 7, and the material receiving mechanism 11 is located on the side of the fourth transmission roller 10 away from the third transmission roller 8.

[0046] The material unloading mechanism includes a material unloading rack 1 fixedly mounted on a workbench 4, a material roller 2 is placed on the material unloading rack 1, and the material receiving mechanism 11 includes a material receiving rack fixedly mounted on the workbench 4, a winding roller is placed on the material receiving rack, and a motor is fixedly mounted on the workbench 4, and the output shaft of the motor and one end of the winding roller are detachably mounted.

[0047] like Figure 1 and Fig.12 As shown, a laser composite film processing folding device provided by the present invention, in this embodiment, two position-limiting transmission mechanisms 3 are also installed on the workbench 4, one of the position-limiting transmission mechanisms 3 is installed between the unloading mechanism and the first transmission roller 5, and the other position-limiting transmission mechanism 3 is installed between the fourth transmission roller 10 and the receiving mechanism 11; The limiting conveying mechanism 3 includes a first door frame 31 fixedly mounted on the workbench 4, a first adjusting screw 34 is threadedly connected to the first door frame 31, an end of the first adjusting screw 34 close to the workbench 4 is rotatably connected to a lifting frame 32, a first guide rod 33 is fixedly connected to the lifting frame 32, the first guide rod 33 passes through and is slidably mounted on the first door frame 31, and a limiting roller 35 is rotatably mounted on the side of the lifting frame 32 close to the workbench 4.

[0048] Working principle: Place the material roller 2 on the unloading rack 1, pass one end of the laser composite film through the bottom of the limit roller 35, between the two first transmission rollers 5, between the two second transmission rollers 7, under the conveying roller 645, between the two third transmission rollers 8, under the limit plate 96, between the two fourth transmission rollers 10, and under the limit roller 35 in sequence, and wind it on the winding roller, then fold the edge of the laser composite film in sequence according to the angles of the first transmission roller 5, the second transmission roller 7, the third transmission roller 8 and the fourth transmission roller 10, and finally rotate the first adjusting screw 34, the second adjusting screw 67, the third adjusting screw 94 and the first adjusting screw 34 in sequence, so that the limit roller 35, the conveying roller 645, the side pressure roller 621, the limit plate 96 and the limit roller 35 squeeze the laser composite film on the workbench 4 and the second transmission roller 7, and then start the motor to start winding the laser composite film. The laser composite film after winding is the laser composite film with the folded edges; After the laser composite film on the material roller 2 is processed, the material roller 2 and the winding roller can be replaced, thereby realizing continuous folding of the laser composite film.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser composite film processing folding device, comprising a workbench (4), characterized in that: Two first transmission rollers (5), two second transmission rollers (7), two third transmission rollers (8) and two fourth transmission rollers (10) are rotatably mounted on the workbench (4) in sequence; the two first transmission rollers (5), the two second transmission rollers (7), the two third transmission rollers (8) and the two fourth transmission rollers (10) are all symmetrically arranged with respect to the center plane of the workbench (4); the distances between the two first transmission rollers (5), the two second transmission rollers (7), the two third transmission rollers (8) and the two fourth transmission rollers (10) are all smaller than the width of the laser composite film; and the angles between the axes of the first transmission rollers (5), the second transmission rollers (7), the third transmission rollers (8) and the fourth transmission rollers (10) and the upper surface of the workbench (4) are 45°, 90°, 135° and 180°, respectively; The workbench (4) is also provided with a flattening mechanism (6), the flattening mechanism (6) comprising a second door frame (61) fixedly connected to the workbench (4), a second adjusting screw (67) being threadedly connected to the second door frame (61), an end of the second adjusting screw (67) close to the workbench (4) being rotatably connected to a lifting cross bar (65), a second guide rod (66) being fixedly connected to the lifting cross bar (65), and the second guide rod (66) being passed through a pipe and slidably mounted on the second door frame (61); A fixed shaft (63) is fixedly mounted on the lifting crossbar (65), and flattening components (64) are mounted on both ends of the fixed shaft (63). The flattening components (64) are used to push the folds of the laser composite film from the middle to the edge.

2. The laser composite film processing folding device according to claim 1, characterized in that: The flattening assembly (64) comprises a conveying roller (645), the conveying roller (645) being rotatably mounted on a fixed shaft (63), a receiving groove (642) being provided on a side of the conveying roller (645), a light rod (649) being fixedly connected to the interior of the receiving groove (642), a slide plate (643) being slidably mounted on the light rod (649), a second compression spring (641) being connected between a side of the slide plate (643) away from the center of the workbench (4) and a side wall of the receiving groove (642), a plurality of fourth guide rods (646) being penetrated and slidably mounted on the slide plate (643), and a side wall of the receiving groove (642) being provided with a plurality of fourth guide rods (646) being provided on a side wall of the receiving groove (642). There is a movable groove (6410) for the fourth guide rod (646) to move, and the ends of the plurality of fourth guide rods (646) away from the axis of the conveying roller (645) are fixedly connected to a flattening block (644), and a third compression spring (647) is connected between the plurality of flattening blocks (644) and the slide plate (643). Initially, the plurality of flattening blocks (644) extend out of the second compression spring (641), and a guide wedge block (648) is fixedly connected to the side wall of the receiving groove (642) near the center of the workbench (4), and the inclined surface of the guide wedge block (648) is tangent to the edge of the flattening block (644) at the end of the slide plate (643).

3. The laser composite film processing folding device according to claim 2, characterized in that: The lengths of the plurality of third compression springs (647) decrease sequentially from the center position of the workbench (4) to the edge position of the workbench (4).

4. The laser composite film processing folding device according to claim 2, characterized in that: The flattening assembly (64) further comprises a locking mechanism (69), the locking mechanism (69) comprising a mounting groove (696) provided inside the fixed shaft (63), a push plate (694) being slidably installed inside the mounting groove (696), a magnetic strip (695) being fixedly connected to the side of the push plate (694) close to the fourth guide rod (646), a clamping strip (691) being adsorbed on the side of the magnetic strip (695), a plurality of strong magnets (697) being arranged on the side of the clamping strip (691) close to the magnetic strip (695), a through hole for the clamping strip (691) to pass through being provided on the conveying roller (645), a clamping groove (692) being provided on the sides of the plurality of fourth guide rods (646) close to the clamping strip (691), and a fourth compression spring (693) being connected between the side of the push plate (694) facing away from the magnetic strip (695) and the mounting groove (696); When all the flattening blocks (644) are completely retracted into the storage slots (642), the clamping strips (691) are inserted into all the clamping slots (692); The distance between the side of the clamping groove (692) away from the clamping strip (691) and the surface of the fixed shaft (63) is not less than the width of the clamping strip (691); A shifting frame (698) is fixedly connected between the two push plates (694), and the shifting frame (698) passes through the fixed shaft (63) and the lifting cross bar (65).

5. The laser composite film processing folding device according to claim 4, characterized in that: The conveying roller (645) is arranged between two second transmission rollers (7); Both ends of the lifting cross bar (65) are equipped with a side pressure mechanism (62), the side pressure mechanism (62) comprising a sliding head (622) slidably mounted on the end of the lifting cross bar (65), a first compression spring (624) is connected between the sliding head (622) and the lifting cross bar (65), and a side pressure roller (621) is rotatably mounted on the bottom of the sliding head (622); A fixed baffle (623) is fixedly connected to the sliding head (622), and a movable hole (625) for the fixed baffle (623) to move is provided on the lifting cross bar (65).

6. The laser composite film processing folding device according to claim 5, characterized in that: A linkage mechanism (68) is connected between the two fixed baffles (623) and the shifting frame (698), the linkage mechanism (68) comprising a linkage plate (681) fixedly connected to one end of the shifting frame (698), both ends of the linkage plate (681) and the side surface close to the fixed baffle (623) are fixedly connected to a baffle rod (682) and a connecting rod (685), the two connecting rods (685) are located between the two baffle rods (682), and when the clamping strip (691) is clamped into the clamping slot (692), the A gap is left between the end of the blocking rod (682) and the side wall of the fixed blocking plate (623), the width of the gap being smaller than the depth of the card slot (692), the connecting rod (685) being "L"-shaped, the two sides of the fixed blocking plates (623) facing each other are fixedly connected with wedge-shaped push blocks (683), the inclined surface of the wedge-shaped push blocks (683) is inclined in a direction away from the card strip (691), and the ends of the two connecting rods (685) close to the wedge-shaped push blocks (683) are fixedly connected with guide cylinders (684); The linkage mechanism (68) further comprises an intermediate gear (687), wherein the intermediate gear (687) is rotatably mounted on the lifting cross bar (65); a first rack (686) is fixedly connected to a side surface of one of the fixed baffles (623); and a second rack (688) is fixedly connected to a side surface of the other fixed baffle (623); the first rack (686) and the second rack (688) are both meshed with the intermediate gear (687), and the first rack (686) and the second rack (688) are located on both sides of the intermediate gear (687).

7. The laser composite film processing folding device according to claim 1, characterized in that: An auxiliary folding mechanism (9) is also installed on the workbench (4), and the auxiliary folding mechanism (9) is located between the third transmission roller (8) and the fourth transmission roller (10); The auxiliary folding mechanism (9) comprises a third door frame (91) fixedly connected to the workbench (4), a third adjusting screw (94) being threadedly connected to the third door frame (91), an end of the third adjusting screw (94) close to the workbench (4) being rotatably connected to a lifting plate (93), a third guide rod (92) being fixedly connected to the lifting plate (93), the third guide rod (92) passing through and slidably mounted on the third door frame (91), a limit plate (96) being fixedly mounted on the bottom of the lifting plate (93) via a fixing rod (95), and both ends of the limit plate (96) being arranged in an arc shape.

8. The laser composite film processing folding device according to claim 1, characterized in that: A material discharge mechanism and a material collection mechanism (11) are also installed on the workbench (4); the material discharge mechanism is located on a side of the first transmission roller (5) away from the second transmission roller (7); and the material collection mechanism (11) is located on a side of the fourth transmission roller (10) away from the third transmission roller (8).

9. The laser composite film processing folding device according to claim 8, characterized in that: Two position-limiting transmission mechanisms (3) are also installed on the workbench (4), one of the position-limiting transmission mechanisms (3) is installed between the material unwinding mechanism and the first transmission roller (5), and the other position-limiting transmission mechanism (3) is installed between the fourth transmission roller (10) and the material receiving mechanism (11); The position-limiting transmission mechanism (3) comprises a first door frame (31) fixedly mounted on a workbench (4); a first adjusting screw (34) is threadedly connected to the first door frame (31); an end of the first adjusting screw (34) close to the workbench (4) is rotatably connected to a lifting frame (32); a first guide rod (33) is fixedly connected to the lifting frame (32); the first guide rod (33) passes through and is slidably mounted on the first door frame (31); and a position-limiting roller (35) is rotatably mounted on a side of the lifting frame (32) close to the workbench (4).

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