Conveying device for folding cover plate machining

Abstract

The invention relates to the technical field of manufacturing of folding cover plates for flexible display equipment, in particular to a conveying device for folding cover plate machining, which comprises a conveying mechanism and a grabbing mechanism, the grabbing mechanism comprises a liftable suction cup seat, a first vacuum suction cup and a second vacuum suction cup, the first vacuum suction cup is assembled on the suction cup seat through a spring in an up-down telescopic manner, and the second vacuum suction cup is fixed on the suction cup seat; a shifting tooth mechanism and an air blowing mechanism are arranged beside the second vacuum suction cup, the shifting tooth mechanism comprises a shifting block capable of ascending and descending, the shifting block is provided with an inclined material shifting face, a plurality of shifting teeth are arranged on the material shifting face from bottom to top, and the shifting teeth are used for shifting the CPI membrane materials adsorbed by the second vacuum suction cup away from one another; a separation gap is at least formed between the ends of the two CPI membrane materials with the adjacent tops; the air blowing mechanism is arranged at the position corresponding to the separation gap on the top and used for blowing air to the separation gap. According to the invention, multiple CPI membrane materials can be prevented from being grabbed at one time, so that misjudgment of a visual detection device is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing a folding cover plate for a flexible display device, and in particular to a conveying device for processing the folding cover plate. Background Art

[0002] The folding cover for flexible display screens is an important component of flexible display screens. It is mainly used to protect flexible display screens, improve display effects and provide mechanical support. It has the characteristics of being repeatedly bendable, transparent, ultra-thin and sufficiently hard.

[0003] At present, there are two main folding cover materials, namely CPI (polyimide) film material and UTG ultra-thin glass. The present invention mainly focuses on the preparation of CPI film material. In the prior art, CPI film material is prepared by laminating CPI film sheet (transparent polyimide film) and OCA (optical adhesive) film sheet. The manufacturing process adopted is a manufacturing method for a folding cover plate for a flexible display screen disclosed in a Chinese patent application document with application publication number CN118314806A. The manufacturing method mainly includes: S1, continuously printing the frame of the folding cover plate on the CPI material tape, and printing the detection mark at the same position on the outside of each frame; S2, synchronously laying out the CPI material tape and the OCA material tape, and detecting the printed length of the frame on the CPI material tape through the detection mark; S3, adjusting the die-cutting length of the OCA material tape according to the printed length of the frame obtained by the detection, cutting the OCA material tape into OCA sheets and applying them on the CPI material tape so that the OCA sheets cover the frame; S4, synchronously die-cutting the bonded OCA sheets and CPI material tape to form a single piece of CPI film material.

[0004] Since the die-cutting equipment is a continuous discharge, in order to reduce frequent pick-and-place operations, single pieces of CPI film are usually stacked at the die-cutting station, and then the stacked CPI film is moved to the loading station as a whole, and the vacuum suction cup on the robot absorbs the single piece of CPI film and moves it to the conveyor belt on the side. Finally, the CPI film is sent to the visual inspection station through the conveyor belt to identify and sort qualified and unqualified products. CPI film materials with scratches and cracks, foreign matter and pollution, bubbles and holes, abnormal colors, and excessive thickness on the surface will be judged as unqualified products after being inspected by the visual inspection device. When CPI film materials are stacked, it is easy to generate interlayer adsorption force due to electrostatic action. The adjacent CPI film surfaces will attract each other through static electricity, causing the vacuum suction cup to often absorb the lower layer of CPI film materials when adsorbing the upper layer of CPI film materials. In this way, the CPI film materials sent to the conveyor belt by the robot will appear in multiple pieces. Visual inspection devices usually rely on image analysis to detect the size, surface defects, optical properties, etc. of CPI film materials. When multiple pieces of CPI film materials are stacked, the overall light transmittance will change, which may cause the inspection results of the visual inspection device to exceed the standard range. Even if a single piece is qualified, it may be misjudged after stacking; and when multiple pieces are stacked, the thickness value will be abnormal, which will be directly judged as unqualified. When the above misjudgment occurs, qualified products will be sorted into the unqualified product area, resulting in material waste. Summary of the invention

[0005] The object of the present invention is to provide a conveying device for folding cover plate processing, so as to solve the technical problem that misjudgment is easy to occur when detecting whether the product is qualified during the production process of the folding cover plate.

[0006] In order to solve the above problems, the present invention provides a conveying device for folding cover processing, which adopts the following technical solution: A conveying device for processing a folding cover plate comprises a conveying mechanism and a gripping mechanism, wherein the conveying mechanism is used to convey CPI film materials; the gripping mechanism is arranged beside the conveying mechanism, and is used to transport the CPI film materials stacked together to the conveying mechanism piece by piece; the gripping mechanism comprises a suction cup seat that can be raised and lowered, a first vacuum suction cup and a second vacuum suction cup located on both sides of the suction cup seat, the first vacuum suction cup is assembled on the suction cup seat in a manner that it can be telescopically moved up and down by a spring, and the second vacuum suction cup is fixed on the suction cup seat; in an initial state, the bottom of the first vacuum suction cup is lower than the bottom of the second vacuum suction cup; A tooth-shifting mechanism and an air-blowing mechanism are provided on the side of the second vacuum suction cup. The tooth-shifting mechanism includes a lifting and lowering shifting block, the shifting block having an inclined shifting surface, and a plurality of teeth are provided on the shifting surface from bottom to top. The teeth are used to shift the plurality of CPI membranes adsorbed by the second vacuum suction cup away from each other, so as to form a separation gap between at least the ends of two adjacent CPI membranes at the top, and the teeth at the top are used to prevent the CPI membranes adjacent to the CPI membranes at the top from passing through; the air-blowing mechanism is provided at a position corresponding to the separation gap at the top and is used to blow air into the separation gap.

[0007] When the present invention is in use, the suction cup seat is lowered so that the first vacuum suction cup and the second vacuum suction cup are in contact with and adsorbed on the top CPI film material, and then the suction cup seat is lifted. At this time, if multiple CPI film materials are sucked up synchronously, since the bottom of the first vacuum suction cup is lower than the second vacuum suction cup under the action of the spring force in the initial state, when the suction cup seat is lifted, the part of the CPI film material adsorbed by the second vacuum suction cup rises first, while the part adsorbed by the first vacuum suction cup remains in place. At this time, one end of each CPI film material close to the second vacuum suction cup is respectively pressed against the second vacuum suction cup during the lifting process. The corresponding teeth block and separate them, which can create a separation gap between the ends of the two adjacent CPI membranes at the top. When the top CPI membrane passes over the top teeth, the blowing mechanism blows air to the separation gap below the top CPI membrane. The airflow can break the electrostatic adsorption force between the two CPI membranes, so that the top CPI membrane is separated from the CPI membrane below it, and then the grabbing mechanism can only send the top CPI membrane to the conveying mechanism, so that the stacked CPI membranes can be inspected piece by piece, avoiding the problem of misjudgment, and reducing material waste. In addition, when the blowing mechanism blows air into the separation gap, it can also blow out non-sticky impurities attached to the surface of the CPI membrane, which improves the qualified rate of the CPI membrane to a certain extent.

[0008] Preferably, two first vacuum suction cups and two second vacuum suction cups are arranged in a conveying direction perpendicular to the conveying mechanism, the suction cup seat includes a seat body and two support arms rotatably assembled on the seat body through the same hinge shaft, a torsion spring connected to the two support arms is sleeved on the hinge shaft, and the first vacuum suction cup is installed on the corresponding support arm; in the initial state, there is a set angle between the two support arms.

[0009] Since a torsion spring is connected between the two support arms, there is an angle initially under the action of the torsion spring. When the suction cup seat moves downward to allow the two first vacuum suction cups to adsorb the CPI film material, the two support arms are pressed downward and rotated around the hinge axis to a horizontal state. When the suction cup seat rises upward, the torsion spring reset will drive the two support arms to rotate relatively close to each other, showing a tendency to pinch up the top CPI film material, which helps to separate the top CPI film material from the CPI film material below it.

[0010] Preferably, the blowing mechanism comprises an air pipe fixed on the shifting block, and the shifting block is provided with an air passage communicating with the air pipe.

[0011] Assembling the blowing mechanism with the shifting block makes the overall structure more compact and the spatial layout reasonable; in addition, the blowing mechanism guides the gas to the corresponding separation gap through the gas channel on the shifting block, and the gas will not flow to other places and will not affect the CPI membrane material on the top.

[0012] Preferably, the inclination angle of the material removing surface is adjustable.

[0013] Adjusting the inclination angle of the material-push surface is equivalent to adjusting the distance between each tooth and the top CPI membrane material, thereby adjusting the resistance of each tooth to the corresponding CPI membrane material during the process of the CPI membrane material being lifted, so that the tooth is kept in the best material-push position.

[0014] Furthermore, it also includes a loading rack corresponding to the grabbing mechanism one by one, and the gear shifting mechanism also includes a slider, which is mounted on the loading rack in an adjustable position along the up and down directions, and the shifting block is rotatably assembled with the slider.

[0015] When the shifting block rotates relative to the slider, the inclination angle of the shifting surface can be adjusted, and the slider can adjust its position up and down to adapt to the changes in the height of the stacked CPI membranes, ensuring that the shifting block plays the function of shifting materials.

[0016] Preferably, a plurality of limit columns are provided on the loading rack around the CPI film material, and the plurality of limit columns together form a loading area. A liftable support plate is provided in the loading area, and the support plate is used to support the stacked CPI film materials. The slider is slidably assembled on the corresponding limit columns.

[0017] The feeding area is surrounded by a plurality of limit columns, which saves materials and eliminates the need for a closed material box structure, thereby reducing the three-dimensional space occupied.

[0018] Preferably, the slide block is provided with a slide groove adapted to the limiting column, and a locking bolt is threadedly connected to the slide block, and the end of the locking bolt extends into the slide groove to tighten the limiting column located in the slide groove.

[0019] When adjusting the position of the slider, you only need to loosen the lock bolt to slide the slider up and down; after the slider slides into place, tighten the lock bolt to lock the position of the slider; the structure is simple and the operation is convenient.

[0020] Preferably, the length of the seat body in the conveying direction of the conveying mechanism is adjustable, and the length of the loading area in the conveying direction of the conveying mechanism is adjustable.

[0021] The loading area can hold CPI films of different sizes, and the length of the seat body is adjustable, so that the distance between the first vacuum suction cup and the second vacuum suction cup can be adjusted to adapt to changes in the size of the CPI film, thereby improving the versatility of the entire conveying device.

[0022] Preferably, the seat body includes a fixed part and a movable part, the movable part and the fixed part are slidably matched in the conveying direction of the conveying mechanism, and the fixed part is provided with a first locking piece for fixing the movable part; the loading rack is provided with an adjustment long hole extending along the conveying direction of the conveying mechanism, the limiting column is movably assembled in the adjustment long hole, and the loading rack is provided with a second locking piece for fixing the limiting column.

[0023] When the seat body is adjusted in length, it is only necessary to unlock the first locking member and pull the movable part out of the fixed part; when the limiting column is adjusted in position, it is only necessary to unlock the second locking member and slide the limiting column, and the operation is simple.

[0024] Preferably, it also includes a frame, on which a row of grabbing mechanisms are movably mounted on both sides perpendicular to the conveying direction of the conveying mechanism, and multiple grabbing mechanisms in each row are arranged at intervals along the conveying direction of the conveying mechanism; in the two rows of grabbing mechanisms, two corresponding grabbing mechanisms act alternately.

[0025] By setting up multiple grabbing mechanisms, multiple CPI membranes can be grabbed at one time, thereby improving the detection efficiency of CPI membranes.

[0026] The beneficial effects of the present invention are as follows: the conveying device for folding cover processing of the present invention can realize automatic grabbing of CPI film materials, and the grabbing mechanism can only grab one piece of CPI film material at a time, avoiding the problem of multiple pieces of CPI film materials being sent to the conveying mechanism at the same time and causing misdetection by the visual inspection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the conveying device for processing the folding cover of the present invention; Figure 2 It is a front view of the conveying device for processing folding cover plates of the present invention; Figure 3 A side view of a conveying device for processing folding cover plates according to the present invention; Figure 4 A top view of a conveying device for processing folding cover plates according to the present invention; Figure 5 It is a schematic diagram of the arrangement of two rows of grabbing mechanisms in the conveying device for processing folding cover plates of the present invention; Figure 6 It is a front view of a single grabbing mechanism in the conveying device for processing folding cover plates of the present invention; Figure 7It is a right side view of a single grabbing mechanism in the conveying device for processing folding cover plates of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the gear shifting mechanism in the conveying device for processing folding cover plates of the present invention; Fig. 9 A top view of a gear shifting mechanism in a conveying device for processing folding cover plates of the present invention; Fig.10 It is a side view of the gear shifting mechanism in the conveying device for processing folding cover plates of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the loading rack in the conveying device for processing folding cover plates of the present invention.

[0028] Description of reference numerals: 1. Frame; 2. Loading rack; 21. Loading cylinder; 22. Support plate; 23. Side limit column; 24. Support column; 25. Bottom plate; 26. Top plate; 261. Adjustment slot; 27. Left limit column; 28. Right limit column; 3. Grasping mechanism; 31. First lifting cylinder; 32. Suction cup seat; 321. Seat body; 3211. Fixed part; 3212. Movable part; 3213. First locking member; 322. First support arm; 323. Second support arm; 324. Third support arm; 33. First true Empty suction cup; 34, second vacuum suction cup; 35, hinge shaft; 36, connecting plate; 37, second lifting cylinder; 38, spring; 4, blowing mechanism; 5, gear-shifting mechanism; 51, shifting block; 511, top gear-shifting; 512, gas channel; 513, middle gear-shifting; 514, bottom gear-shifting; 52, slider; 521, slide groove; 522, locking bolt; 6, conveying mechanism; 61, conveying frame; 62, conveyor belt; 7, CPI membrane material; 8, transfer frame; 81, sliding beam; 82, fixing plate; 83, sliding protrusion. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. It should be known to those skilled in the art that the embodiments described below are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0030] Embodiment 1 of a conveying device for folding cover processing provided by the present invention: like Figure 1 and Fig.10 As shown, a conveying device for folding cover plate processing includes a frame 1, a conveying mechanism 6, a loading rack 2, a grabbing mechanism 3, a gear shifting mechanism 5 and a blowing mechanism 4.

[0031] Among them, Figure 4As shown, the conveying mechanism 6 is a belt conveying mechanism 6 commonly used in the prior art, including a conveying frame 61 and a conveying belt 62 installed on the conveying frame 61. The conveying frame 61 is placed on the ground, and the conveying belt 62 is used to carry the CPI film material 7 grasped by the grasping mechanism 3, and convey the above-mentioned CPI film material 7 piece by piece toward the visual inspection device, and the visual inspection device is used to detect whether the CPI film material 7 is qualified.

[0032] In this embodiment, for the convenience of description, the conveying direction of the conveyor belt 62 is defined as the left-right direction, and the conveying direction horizontally and perpendicular to the conveyor belt 62 is defined as the front-back direction.

[0033] like Figure 3 and Figure 4 As shown, the conveyor frame 61 is located inside the frame 1, and the conveyor frame 61 and the frame 1 are both symmetrical structures, and the symmetry plane of the conveyor frame 61 is coplanar with the symmetry plane of the frame 1. Figure 1 and Figure 4 As shown, a row of grabbing mechanisms 3 are symmetrically arranged on the front and rear sides of the conveying frame 61, such as Figure 5 As shown, a plurality of gripping mechanisms 3 are arranged in each row at intervals along the left-right direction, and the gripping mechanisms 3 are used to transport the CPI film materials 7 stacked together on the loading rack 2 piece by piece to the conveyor belt 62. In this embodiment, four gripping mechanisms 3 are arranged in each row, and the spacing between any two adjacent gripping mechanisms 3 in the left-right direction is equal. In practical application, the appropriate number of gripping mechanisms 3 can be reasonably selected according to the space of the workshop.

[0034] In this embodiment, Figure 2 and Figure 5 As shown, the four grabbing mechanisms 3 in each row are fixed on the same transport frame 8, and the transport frame 8 includes a sliding beam 81 extending in the left-right direction and a fixing plate 82 welded on the sliding beam 81, and the bottom end of the fixing plate 82 is at a height lower than the bottom end of the sliding beam 81. A sliding protrusion 83 is respectively provided on the left and right sides of the top of the sliding beam 81, and two track grooves corresponding to the sliding protrusion 83 are provided on the frame 1, and the track grooves extend in the front-to-back direction. The sliding protrusions 83 on the same side of the two sliding beams 81 slide with the track grooves on the corresponding side. In actual operation, a plurality of push cylinders (not shown in the figure) arranged at intervals in the left-to-right direction are provided at the position corresponding to each sliding beam 81 on the frame 1, and the piston rods of the plurality of push cylinders are connected to the sliding beam 81, pushing the sliding beam 81 to approach the conveyor belt 62 or away from the conveyor belt 62 in the front-to-back direction, and each grabbing mechanism 3 moves in the front-to-back direction with the sliding beam 81 to transport the CPI film material 7 to the top of the conveyor belt 62. Of course, in other embodiments, each grabbing mechanism 3 may also be separately configured with a transfer frame 8. In this case, it is necessary to set the same number of slide grooves 521 as the transfer frames 8 on the same side on the frame 1.

[0035] Specifically, in this embodiment, Figure 6 and Figure 7 As shown, each gripping mechanism 3 includes a first lifting cylinder 31, a second lifting cylinder 37, a suction cup seat 32, a first vacuum suction cup 33 and a second vacuum suction cup 34. Among them, the first lifting cylinders 31 of each gripping mechanism 3 located on the same side of the conveyor belt 62 are fixed on the sliding beam 81 on the side, and the piston rods of each first lifting cylinder 31 located on the same side of the conveyor belt 62 are commonly connected to a connecting plate 36. The side of the connecting plate 36 facing away from each first lifting cylinder 31 is respectively fixed with a second lifting cylinder 37 corresponding to each first lifting cylinder 31, and four guide shafts are arranged in an array on the cylinder body of each second lifting cylinder 37.

[0036] like Figure 6 and Figure 7 As shown, the suction cup seat 32 includes a seat body 321, a first support arm 322, a second support arm 323 and a third support arm 324, wherein the seat body 321 is a horizontal telescopic structure, which can adjust the length in the left and right directions, and includes a fixed portion 3211 and a movable portion 3212, and four guide shafts are connected to the fixed portion 3211, and the piston rod of the second lifting cylinder 37 is connected to the fixed portion 3211. The movable portion 3212 and the fixed portion 3211 are slidably matched in the left and right directions, and the fixed portion 3211 is provided with a first locking member 3213 for fixing the movable portion 3212. The first locking member 3213 is a bolt, which is threadedly connected to the fixed portion 3211. When the first locking member 3213 is loosened, the movable portion 3212 can be pulled out, and when the movable portion 3212 moves into place, the first locking member 3213 can be tightened to stably lock the movable portion 3212.

[0037] like Figure 5 As shown, the first support arm 322 and the second support arm 323 are both located on the same side of the base body 321, and the third support arm 324 is located on the other side of the base body 321. The first support arm 322 and the second support arm 323 have the same length, and the two are relatively rotatably assembled on the movable part 3212 through the same hinge shaft 35. A torsion spring is sleeved on the hinge shaft 35, and the two ends of the torsion spring are respectively connected to the first support arm 322 and the second support arm 323. The interior of the first support arm 322 and the second support arm 323 is hollow, and a first vacuum suction cup 33 is installed on the first support arm 322 and the second support arm 323 respectively; the interior of the third support arm 324 is also hollow, and a second vacuum suction cup 34 is fixed on the third support arm 324 at the position corresponding to the two first vacuum suction cups 33. When the above-mentioned movable part 3212 is pulled out, the distance between the first vacuum suction cup 33 and the second vacuum suction cup 34 in the left-right direction can be adjusted, thereby adjusting the adsorption position of the first vacuum suction cup 33 and the second vacuum suction cup 34.

[0038] like Figure 6 As shown, each first vacuum suction cup 33 is provided with a spring 38, and the two springs 38 are connected to the first support arm 322 and the second support arm 323 respectively, and the two first vacuum suction cups 33 are respectively slidably sealed with the first support arm 322 and the second support arm 323. When the CPI film 7 is not initially grasped, the spring 38 is in a natural state, and at this time, the height of the bottom of the two first vacuum suction cups 33 is less than the height of the bottom of the two second vacuum suction cups 34, that is, in the initial state, there is a certain height difference between the bottom of the two first vacuum suction cups 33 and the bottom of the two second vacuum suction cups 34. At the same time, the torsion spring is in a natural state, and there is a certain angle between the first support arm 322 and the second support arm 323. The angle is small, so that the first vacuum suction cup 33 will not cause plastic deformation of the CPI film 7 during the process of adsorbing and lifting the CPI film 7.

[0039] like Figure 1 As shown, the loading rack 2 is arranged one by one below the grabbing mechanism 3 and is connected to the conveying rack 61. Figure 2 and Fig.11 As shown, the loading rack 2 includes a bottom plate 25, a top plate 26, a support column 24 and a loading cylinder 21. The bottom plate 25 and the top plate 26 are both rectangular plates with the same size, and the bottom plate 25 and the top plate 26 are arranged parallel and spaced in the up and down directions. There are four support columns 24 distributed in a rectangular array, and each support column 24 passes through the bottom plate 25 and is connected to the bottom plate 25 and the top plate 26. An anti-slip rubber pad is also installed at the bottom of each support column 24. The loading cylinder 21 is fixed on the bottom plate 25, and the output end of the loading cylinder 21 is connected to the support plate 22, and the support plate 22 is used to place the CPI film materials 7 stacked together. A rectangular through hole is provided on the top plate 26 for the support plate 22 and the CPI film material 7 to pass through. A plurality of limit columns are provided around the rectangular through hole, namely, side limit columns 23 located on the front and rear sides of the rectangular through hole, left end limit columns 27 and right end limit columns 28 located on the left and right sides of the rectangular through hole. All the limit columns together form a placement area. When working, the CPI film material 7 on the support plate 22 is located in the placement area, and each limit column has a limiting effect on the surrounding areas of the CPI film material 7.

[0040] An adjustment long hole 261 is provided on the top plate 26 at a position corresponding to the left end limit column 27. The adjustment long hole 261 extends in the left-right direction. The left end limit column 27 is slidably assembled in the adjustment long hole 261. A second locking member (not shown in the figure) for fixing the left end limit column 27 is provided on the side of the top plate 26. The second locking member is also a bolt, and the end of the bolt has a small section of a bare rod section, and the bolt is threadedly connected to the top plate 26. A small bearing is embedded in the left end limit column 27, and the end of the bolt extends into the adjustment long hole 261 and is assembled with the above-mentioned small bearing. The position of the left end limit column 27 in the left-right direction can be adjusted by screwing the bolt, and the left end limit column 27 can be kept in the current position under the self-locking effect of the thread by loosening the bolt. After the position of the left end limit column 27 is changed, it is equivalent to adjusting the length of the above-mentioned placement area in the left and right directions, so that CPI film materials 7 of different sizes can be placed. Correspondingly, adjusting the distance between the first vacuum suction cup 33 and the second vacuum suction cup 34 can also achieve the adsorption of CPI film materials 7 of different sizes, thereby improving the versatility of the entire folding cover processing conveying device.

[0041] like Figure 3 As shown, the gear shifting mechanism 5 and the air blowing mechanism 4 are both arranged beside the second vacuum suction cup 34 and located at the position of the right end limit column 28. Figure 8 , Fig. 9 and Fig.10 As shown, the gear shifting mechanism 5 includes a slider 52 and a shifting block 51. The slider 52 is provided with a slide groove 521 adapted to the right end limiting column 28. The slider 52 is sleeved on the right end limiting column 28 through the slide groove 521, and can slide up and down on the right end limiting column 28. A locking bolt 522 is threadedly connected to the side of the slider 52 facing away from the right end limiting column 28. The end of the locking bolt 522 extends into the slide groove 521, which is used to press against the right end limiting column 28 located in the slide groove 521, thereby fixing the slider 52 at the current position.

[0042] like Fig. 9 As shown, the shifting block 51 is hinged at the middle of the slider 52, and can rotate relative to the slider 52, and move up and down with the slider 52. The shifting block 51 has a shifting surface facing the CPI film 7, and the shifting surface is arranged obliquely, and a plurality of shifting teeth are arranged on the shifting surface from bottom to top. The plurality of shifting teeth are divided into a top shifting tooth 511, a bottom shifting tooth 514 and a middle shifting tooth 513, and the protruding lengths of the top shifting tooth 511 and the bottom shifting tooth 514 are greater than the protruding lengths of the middle shifting teeth 513. The function of each shifting tooth is to shift the ends of the plurality of CPI film materials 7 when the second vacuum suction cup 34 sucks up the CPI film 7, if multiple pieces of CPI film materials 7 are adsorbed, so as to form a separation gap between the ends of two adjacent pieces of CPI film materials 7. The top shifting tooth 511 can allow the top CPI film material 7 that is in direct contact with the second vacuum suction cup 34 to pass through, and block the subsequent CPI film material 7 from passing through.

[0043] The blowing mechanism 4 includes an air pipe fixed on the shifting block 51 and a small blower (not shown in the figure) connected to the air pipe. Figure 8 As shown, a gas channel 512 is provided between the top shifting tooth 511 and the adjacent middle shifting tooth 513 on the shifting block 51. The gas channel 512 is connected to the air pipe and corresponds to the separation gap at the top (the separation gap formed between the top CPI membrane material 7 and the adjacent CPI membrane material 7). When the small fan is started, the airflow is sent into the gas channel 512 through the air pipe and blown into the separation gap at the top.

[0044] The working process of the conveying device for folding cover processing of the present invention is as follows: Initially, stacked CPI films 7 are placed in the loading area of ​​each loading rack 2. At this time, there is a small angle between the first support arm 322 and the second support arm 323, and there is a height difference between the bottom of the first vacuum suction cup 33 and the bottom of the second vacuum suction cup 34.

[0045] During operation, the transfer frame 8 moves each grabbing mechanism 3 to the top of the corresponding loading rack 2. After the first lifting cylinder 31 is extended to the position, the second lifting cylinder 37 is extended. The extension speed of the second lifting cylinder 37 is less than the extension speed of the first lifting cylinder 31. During the extension of the second lifting cylinder 37, the first vacuum suction cup 33 first contacts the CPI film 7 on the top, and then compresses the spring 38. At the same time, the first support arm 322 and the second support arm 323 rotate relatively to a horizontal state, and the second vacuum suction cup 34 also contacts the CPI film 7 on the top. After that, the second lifting cylinder 37 retracts. During the retraction of the second lifting cylinder 37, the second vacuum suction cup 34 is lifted first. At this time, the first vacuum suction cup 33 is still in place, which makes the side of the CPI film 7 adsorbed by the second vacuum suction cup 34 be lifted first. When the elastic force of the spring 38 is completely released, the side of the CPI film 7 adsorbed by the first vacuum suction cup 33 is also lifted. At this time, the torsion spring will also reset, and an angle will be formed between the first support arm 322 and the second support arm 323. The angle is very small, so that the two first vacuum suction cups 33 tend to pinch the CPI film 7. However, this phenomenon is not enough to cause plastic deformation of the CPI film 7 adsorbed by the first vacuum suction cups 33, and will not affect the quality of the CPI film 7.

[0046] If the second vacuum suction cup 34 absorbs multiple CPI membranes 7 at one time, one end of each CPI membrane 7 absorbed by the second vacuum suction cup 34 will be separated from each other by the action of each tooth during the lifting process, and a separation gap will appear between them. When the top CPI membrane 7 passes over the top tooth 511, the blowing mechanism 4 blows air into the top separation gap, and the airflow can break the electrostatic adsorption force between the two CPI membranes 7, so that the top CPI membrane 7 and the CPI membrane 7 below it are separated; the above-mentioned two first vacuum suction cups 33 also help to separate the top CPI membrane 7 and the CPI membrane 7 below it when they show a pinching tendency. In this way, the grasping mechanism 3 only grasps one CPI membrane 7 at a time. When the blowing mechanism 4 blows air into the separation gap, it can also blow out non-sticky impurities (such as environmental dust) attached to the surface of the CPI membrane 7. When the blowing mechanism 4 blows air into the separation gap, the non-sticky impurities on the mutually contacting surfaces of two adjacent CPI membrane materials 7 can be blown off, so that in the process of grabbing the CPI membrane materials 7 piece by piece, the upper and lower surfaces of each CPI membrane material 7 can be blown by the airflow generated by the blowing mechanism 4, which improves the qualified rate of the CPI membrane materials 7 to a certain extent. In actual work, the two rows of grabbing mechanisms 3 operate alternately under the control of the PLC, and the grabbing mechanisms 3 in each row operate synchronously under the control of the PLC, so that multiple CPI membrane materials 7 can be transferred to the conveyor belt 62 at one time, ensuring the efficiency of subsequent detection and sorting.

[0047] Embodiment 2 of a conveying device for folding cover processing provided by the present invention: The main difference between it and Example 1 is: In Example 1, the length of the suction cup seat in the left-right direction is adjustable, and the position of the left-end limiting column in the left-right direction is adjustable.

[0048] In this embodiment, the size of the suction cup seat is fixed, and the left end limit column is welded to the top plate. At this time, the entire grasping mechanism only grasps and transports CPI membrane materials of a specific size piece by piece.

[0049] Embodiment 3 of a conveying device for folding cover processing provided by the present invention: The main difference between it and Example 1 is: In Example 1, the inclination angle of the material shifting surface on the shifting block is adjustable to adjust the resistance to the CPI film material.

[0050] In this embodiment, the shifting block is matched according to the thickness of the stacked CPI film material, that is, the inclination angle of the material shifting surface on the shifting block is fixed, and at this time, the shifting block is fixedly connected to the slider.

[0051] In the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying device for processing folding cover sheets, comprising a conveying mechanism and a grabbing mechanism, wherein the conveying mechanism is used to convey CPI film materials; the grabbing mechanism is arranged beside the conveying mechanism, and is used to transport the stacked CPI film materials one by one to the conveying mechanism, characterized in that: The gripping mechanism comprises a suction cup seat capable of being raised and lowered, a first vacuum suction cup and a second vacuum suction cup located on both sides of the suction cup seat, the first vacuum suction cup being assembled on the suction cup seat in a manner that it can be telescopically moved up and down by a spring, and the second vacuum suction cup being fixed on the suction cup seat; in an initial state, the bottom of the first vacuum suction cup is lower than the bottom of the second vacuum suction cup; A tooth-shifting mechanism and an air-blowing mechanism are provided on the side of the second vacuum suction cup. The tooth-shifting mechanism includes a lifting and lowering shifting block, the shifting block having an inclined shifting surface, and a plurality of teeth are provided on the shifting surface from bottom to top. The teeth are used to shift the plurality of CPI membranes adsorbed by the second vacuum suction cup away from each other, so as to form a separation gap between at least the ends of two adjacent CPI membranes at the top, and the teeth at the top are used to prevent the CPI membranes adjacent to the CPI membranes at the top from passing through; the air-blowing mechanism is provided at a position corresponding to the separation gap at the top and is used to blow air into the separation gap.

2. A conveying device for processing folding cover sheets according to claim 1, characterized in that: Two first vacuum suction cups and second vacuum suction cups are arranged perpendicular to the conveying direction of the conveying mechanism. The suction cup seat includes a seat body and two support arms rotatably assembled on the seat body through the same hinge shaft. A torsion spring connected to the two support arms is sleeved on the hinge shaft, and the first vacuum suction cup is installed on the corresponding support arm. In the initial state, there is a set angle between the two support arms.

3. A conveying device for processing folding cover sheets according to claim 2, characterized in that: The blowing mechanism comprises an air pipe fixed on the shifting block, and the shifting block is provided with an air passage communicating with the air pipe.

4. A conveying device for processing folding cover sheets according to claim 2 or 3, characterized in that: The inclination angle of the material-discharging surface is adjustable.

5. A conveying device for processing folding cover sheets according to claim 4, characterized in that: It also includes a loading rack corresponding to the grabbing mechanism one by one, and the gear shifting mechanism also includes a slider, which is mounted on the loading rack in an adjustable position along the up and down directions, and the shifting block is rotatably assembled with the slider.

6. A conveying device for processing folding cover sheets according to claim 5, characterized in that: The loading rack is provided with a plurality of limit columns around the CPI film material, and the plurality of limit columns together form a loading area. A lifting support plate is provided in the loading area, and the support plate is used to support the CPI film materials stacked together. The slider is slidably assembled on the corresponding limit columns.

7. A conveying device for processing folding cover sheets according to claim 6, characterized in that: The slide block is provided with a slide groove matched with the limiting column, and a locking bolt is threadedly connected to the slide block, and the end of the locking bolt extends into the slide groove to tighten the limiting column located in the slide groove.

8. A conveying device for processing folding cover sheets according to claim 6 or 7, characterized in that: The length of the seat body in the conveying direction of the conveying mechanism is adjustable, and the length of the loading area in the conveying direction of the conveying mechanism is adjustable.

9. A conveying device for processing folding cover sheets according to claim 8, characterized in that: The seat body includes a fixed part and a movable part, the movable part and the fixed part are slidably matched in the conveying direction of the conveying mechanism, and the fixed part is provided with a first locking piece for fixing the movable part; the loading rack is provided with an adjustment long hole extending along the conveying direction of the conveying mechanism, the limiting column is movably assembled in the adjustment long hole, and the loading rack is provided with a second locking piece for fixing the limiting column.

10. A conveying device for processing folding cover sheets according to any one of claims 1 to 3, characterized in that: It also includes a frame, on which a row of grabbing mechanisms are movably mounted on both sides perpendicular to the conveying direction of the conveying mechanism, and a plurality of grabbing mechanisms in each row are arranged at intervals along the conveying direction of the conveying mechanism; in the two rows of grabbing mechanisms, two corresponding grabbing mechanisms act alternately.

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