An optical film stacking apparatus and a stacking method

Abstract

An optical thin film stacking apparatus and method are disclosed. The apparatus includes a support frame, a flipping mechanism, a transfer mechanism, and a carrying mechanism. The support frame has a first recess and a second recess. The flipping mechanism, installed within the first recess, includes two symmetrically arranged and opposing flipping components, each including a second flipping plate for receiving and flipping the thin film. The transfer mechanism, located below the support frame, includes two reciprocating first transfer plates, with two symmetrically arranged second transfer plates on the outer sides of the first transfer plates for receiving and transferring the thin film. The carrying mechanism, located below the second recess, includes a carrying plate that moves vertically, with a stacking plate on the carrying plate for stacking the thin film. The method includes: conveying the optical film to an extension plate; limiting and flipping both sides of the optical film; and transferring the optical film above the stacking plate. This method can automatically transfer and stack cut films, reducing manual operation and improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of optical thin film production technology, and in particular to an optical thin film stacking apparatus and stacking method. Background Technology

[0002] In the production process of optical thin films, films of different thicknesses are produced according to different needs. These films are then used in different equipment. Thinner films are generally packaged using a winding method. However, if thicker films are also packaged using a winding method, the film will twist and deform after winding, leading to a decrease in product quality. Therefore, thicker films are usually cut into sheets of the same size and then stacked for storage. Currently, thinner films are wound using film winding equipment, which is very convenient and fast. However, for thicker films, they need to be cut before stacking, and due to their inherent characteristics, transfer... During the process, if suction cups are used on the transfer plate to adsorb and flip the film, the transfer plate can only be set to a back-and-forth transfer method. Otherwise, the pipes connected to it will interfere with other components. Moreover, the transfer efficiency of the back-and-forth flipping method is not as high as that of manual transfer, which will affect the normal production process. Therefore, the existing technology generally uses manual transfer. However, during the stacking process, the film is very soft and easily twisted. It requires two people to work at the same time. Uneven force applied to the film by the workers may damage the film. If the film is transferred by continuous flipping, the adsorption method cannot be used to fix the film, and the film will float during the flipping process. Summary of the Invention

[0003] In view of the shortcomings of the above-mentioned prior art, this application provides an optical thin film stacking device and stacking method, which can automatically transfer and stack the cut thin film, reduce manual operation, improve production efficiency, and has strong practicality.

[0004] To achieve the above objectives, the present invention employs the following techniques:

[0005] An optical thin film stacking device includes: a support frame, a flipping mechanism, a transfer mechanism, and a carrying mechanism.

[0006] The support frame has a first recess and a second recess. Two extension plates are provided along the length of the first recess, and rollers are provided on the extension plates for conveying film. A flipping mechanism is installed in the first recess and includes a drive shaft arranged along the width of the first recess and two symmetrically arranged flipping components that move towards each other. Several first flipping plates are provided between the two flipping components. Each flipping component includes a second flipping plate. Both the first and second flipping plates consist of a collar and two connecting plates arranged symmetrically on their periphery. The collar is fitted onto the drive shaft, and the connecting plates are used to receive and flip the film. A transfer mechanism is located below the support frame and includes two first transfer plates that move back and forth between the first and second recesses. A second transfer plate is also provided outside the first transfer plates. The two second transfer plates are symmetrically arranged and move towards each other. The second transfer plates move synchronously with the first transfer plates and are used to receive and transfer the film. A carrying mechanism is located below the second recess and includes a carrying plate that moves vertically. A stacking plate is provided on the carrying plate for stacking the film received by the transfer mechanism.

[0007] Furthermore, a connecting ring is provided on the outer side of the second flip plate, and a T-shaped groove is provided on the outer side of the connecting ring. Four connecting blocks are slidably fitted in the groove. Two of the connecting blocks have guide rods at one end, which pass through the support plate. The support plate is mounted on the support frame. A first spring is sleeved on the guide rod, and a retaining ring is also provided at one end of the guide rod. The two ends of the first spring abut against the support plate and the retaining ring respectively, and are always in a compressed state. The other two connecting blocks are connected to the moving end of the first telescopic rod, which is mounted on the support frame.

[0008] Furthermore, the connecting plate of the second flip plate has an L-shaped plate along its length, and the short end of the L-shaped plate is located near the drive shaft. The inner side of the short end of the L-shaped plate has a limiting groove that extends to the bottom surface of the second flip plate. A first positioning plate is slidably fitted in the limiting groove. The first positioning plate is U-shaped, and its two protruding parts are located on the upper and lower sides of the connecting plate, respectively. The protruding part of the first positioning plate located below the connecting plate is sleeved on the slide rod. One end of the slide rod is installed on the connecting plate, and the other end is provided with a connecting frame. The connecting frame is also connected to the connecting plate. A second spring is sleeved on the slide rod. The two ends of the second spring are respectively connected to the first positioning plate and the connecting frame, and are always in a stretched state.

[0009] Furthermore, the inner side of the long end of the L-shaped plate is also provided with a sliding groove extending through to the bottom surface of the connecting plate along its length direction. A second positioning plate is slidably fitted in the sliding groove. The second positioning plate moves both along the length direction and the width direction of the sliding groove. The second positioning plate is also U-shaped, and its lower end is sleeved on the moving rod. The bottom surface of the connecting plate is provided with a guide groove along its length direction. One end of the moving rod is slidably fitted in the guide groove. The other end of the moving rod is provided with a connecting plate. A screw passes through the connecting plate and locks it to the connecting plate. A third spring is also sleeved on the moving rod. The two ends of the third spring are respectively connected to the connecting plate and the second positioning plate and are always in a stretched state.

[0010] Furthermore, a push block is provided below the first positioning plate and the second positioning plate to push the first positioning plate and the second positioning plate upward. One end of the push block is connected to the moving end of the second telescopic rod. The second telescopic rod located below the first positioning plate is installed on the support frame, and the fixed end of the second telescopic rod located below the second positioning plate is installed on the moving frame. The moving frame is slidably mounted on the support frame and locked with screws. The two side walls of the first recess are provided with grooves and elongated holes. The elongated holes are arranged along the length direction of the first recess. When the second flip plate rotates, the push block is located in the groove and the elongated hole respectively.

[0011] Furthermore, the push block is U-shaped with its opening facing the first flip plate. The side of the push block facing the connecting plate has an inclined surface for contacting the edge of the first positioning plate or the second positioning plate. The end of the inclined surface near the bottom of the push block also has a stepped portion for contacting the flat portion of the first positioning plate or the second positioning plate.

[0012] Furthermore, one end of the first transfer plate is connected to the moving end of the third telescopic rod, the third telescopic rod is installed on the bottom surface of the extension plate, and both sides of the bottom surface of the first transfer plate are provided with protrusions along the length direction. A connecting rod is inserted through the protrusions, and one end of the connecting rod is connected to the second transfer plate. Both the first transfer plate and the second transfer plate are provided with multiple suction holes for adsorbing the film. The top surface of the second transfer plate is provided with an L-shaped partition, and the film is located between the two partitions during application.

[0013] Furthermore, the transfer mechanism also includes two symmetrically arranged pressure rods. One end of the pressure rod is sleeved on the rotating shaft, the upper end of the rotating shaft is mounted on the lifting plate and connected to the first motor, which is also mounted on the lifting plate. The lifting plate is connected to the moving end of the fourth telescopic rod, the fourth telescopic rod is mounted on the second moving frame, and the second moving frame is slidably mounted on the support frame and moves along its length.

[0014] Furthermore, a support frame is provided below the second recess, and a support plate is provided above the support frame. The two sides of the support plate are connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed on the support frame. A locking block is provided on the support plate near the first recess, and the locking block is located on the center line of the length direction of the support plate. A slot is provided on the bottom surface of the stacked plate. When in use, the locking block and the slot cooperate.

[0015] Furthermore, the four corners of the support plate and the support frame are provided with through holes that run vertically through each other. Vertically arranged clamping plates are provided in the through holes. The clamping plates are L-shaped. The four corners of the stacked plate are provided with L-shaped recesses. The inner corners of the clamping plates cooperate with the recesses. The clamping plates located at the same end of the length direction of the support plate are symmetrically arranged and move towards each other. The two clamping plates away from the first recess move along the length direction of the support plate.

[0016] Furthermore, the support frame is also equipped with a baffle, the top surface of which is flush with the top surface of the first transfer plate and located between the two first transfer plates. A stop block is provided above the baffle, and the stop block is connected to the moving end of the vertically arranged fifth telescopic rod. The fifth telescopic rod is installed on the support frame. When in use, the stop block abuts against the baffle.

[0017] An optical thin film stacking method, using the optical thin film stacking apparatus described above, includes:

[0018] S01. The cut optical film is conveyed to the extension plate, with both sides of the optical film located on the connecting plate.

[0019] S02. Limit and flip the two sides of the optical film so that the optical film falls on the first transfer plate and the two sides of the optical film are on the second transfer plate.

[0020] S03, the first transfer plate and the second transfer plate transfer the optical film to the top of the stacking plate, and when the first transfer plate and the second transfer plate are reset, the optical film falls onto the stacking plate.

[0021] The beneficial effects of this invention are as follows:

[0022] It can automatically transfer and stack the cut film, reducing manual operation, avoiding damage to the film caused by manual operation, and improving production efficiency. The spacing between the second flipping plates and the spacing between the second transfer plates are adjustable to accommodate films of different sizes. During the flipping process, the first and second positioning plates are used to position the film to prevent it from floating and ensure smooth stacking. A pressure plate is also set to press the film downward so that the two corners of the flipped film can be separated from the contact with the second positioning plate, so that the film will not be pulled or twisted and deformed by other parts during the movement of the first transfer plate. A matching clamping plate is set on the stacking plate to ensure that the film is restricted to the vertical area of ​​the stacking plate during the fall, so that it falls smoothly on the stacking plate. Attached Figure Description

[0023] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of the invention.

[0024] Figure 1This is a three-dimensional schematic diagram of the overall structure of an embodiment of this application.

[0025] Figure 2 This is a front view of an embodiment of this application.

[0026] Figure 3 This is a three-dimensional schematic diagram of the flipping mechanism according to an embodiment of this application.

[0027] Figure 4 This is a three-dimensional schematic diagram of the second flip plate according to an embodiment of this application.

[0028] Figure 5 for Figure 4 Enlarged schematic diagram of point A.

[0029] Figure 6 This is a schematic diagram of the pusher block installation according to an embodiment of this application.

[0030] Figure 7 This is a three-dimensional schematic diagram of the transfer mechanism according to an embodiment of this application.

[0031] Figure 8 for Figure 7 Enlarged diagram of point B.

[0032] Figure 9 This is the carrier structure in the embodiments of this application.

[0033] Explanation of reference numerals in the attached drawings: 100—Support frame, 200—Tilting mechanism, 300—Transfer mechanism, 400—Bearing mechanism, 101—First recess, 102—Second recess, 103—Extension plate, 104—Roller, 105—Groove, 106—Elongated hole, 107—Bearing frame, 108—Baffle, 109—Partition, 110—Through groove, 201—Drive shaft, 202—First tilting plate, 2021— 2022—Connecting plate, 203—Second flip plate, 204—Connecting ring, 205—Ring groove, 206—Connecting block, 207—Guide rod, 208—Support plate, 209—First spring, 210—Retaining ring, 211—First telescopic rod, 212—L-shaped plate, 213—Limiting groove, 214—First positioning plate, 215—Slide rod, 216—Connecting frame, 217—Second spring, 218—Slide rod 219—Second positioning plate; 220—Moving rod; 221—Guide groove; 222—Connecting plate; 223—Third spring; 224—Push block; 225—Second telescopic rod; 226—First moving frame; 227—Third motor; 301—First transfer plate; 302—Second transfer plate; 303—Third telescopic rod; 304—Protruding plate; 305—Connecting rod; 306—Suction hole; 307—Pressure rod; 308— 309—Lifting plate, 310—First motor, 311—Fourth telescopic rod, 312—Second moving frame, 313—Partition plate, 401—Bearing plate, 402—Stacking plate, 403—Card block, 404—Card slot, 405—Through hole, 406—Card plate, 407—Stop block, 408—Fifth telescopic rod, 409—Double-direction screw, 410—Crossbar, 411—Second motor, 412—Sixth telescopic rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0035] like Figures 1-9 As shown, one aspect of this application provides an optical thin film stacking device, including: a support frame 100, a flipping mechanism 200, a transfer mechanism 300, and a carrying mechanism 400.

[0036] The support frame 100 has a first recess 101 and a second recess 102. Two extension plates 103 are provided along the length of the first recess 101, and rollers 104 are provided on the extension plates 103 for conveying film. A flipping mechanism 200 is installed in the first recess 101 and includes a drive shaft 201 arranged along the width of the first recess 101 and two symmetrically arranged and opposing flipping components. One end of the drive shaft 201 is connected to a third motor 227, which is mounted on the support frame 100. Several first flipping plates 202 are provided between the two flipping components. If there is only one first flipping plate 202, it is located between the two extension plates 103. If there are multiple first flipping plates 202, such as three, the extension plates 103 and the first flipping plates 202 are arranged alternately. The flipping components include second flipping plates 203, the first... Both the first flip plate 202 and the second flip plate 203 are composed of a collar 2021 and two connecting plates 2022 arranged symmetrically around the collar 2021. The collar 2021 is sleeved on the drive shaft 201, and the connecting plates 2022 are used to receive the film and flip it. The transfer mechanism 300 is located below the support frame 100 and includes two first transfer plates 301 that move back and forth between the first recess 101 and the second recess 102. A second transfer plate 302 is also provided on the outside of the first transfer plate 301. The two second transfer plates 302 are symmetrically arranged and move towards each other. The second transfer plates 302 move synchronously with the first transfer plates 301 and are used to receive the film and transfer it. The bearing mechanism 400 is located below the second recess 102 and includes a bearing plate 401 that moves in a vertical direction. A stacking plate 402 is provided on the bearing plate 401 for stacking the film received by the transfer mechanism 300.

[0037] Specifically, such as Figures 1-4As shown, to accommodate films of different widths, a connecting ring 204 is provided on the outer side of the second flip plate 203. A T-shaped annular groove 205 is provided on the outer side of the connecting ring 204. Four connecting blocks 206 are slidably fitted within the annular groove 205. When the connecting ring 204 rotates, the connecting blocks 206 do not rotate with it. Two of the connecting blocks 206 have guide rods 207 at one end, which pass through a support plate 208 mounted on a support frame 100. A first spring 209 is fitted onto the guide rod 207, and a retaining ring 210 is also provided at one end of the guide rod 207. The two ends of the first spring 209 abut against the support plate 208 and the retaining ring 210 respectively, and are always in contact with the support plate 208. In the compressed state, the connecting ring 204 always tends to move towards the outside of the support frame 100; the other two connecting blocks 206 are connected to the moving end of the first telescopic rod 211, which is mounted on the support frame 100. When it is necessary to adjust the distance between the two second flip plates 203, the first telescopic rod 211 is activated, and the second flip plates 203 are pushed towards the center of the first recess 101, so that the two second flip plates 203 move towards each other. When it is necessary to increase the distance between the two second flip plates 203, the first telescopic rod 211 is retracted, and the connecting ring 204 moves towards the outside of the support frame 100 under the elastic force of the first spring 209.

[0038] Specifically, such as Figures 3-5 As shown, to prevent the film from drifting during the flipping process, an L-shaped plate 212 is provided along the length of the connecting plate 2022 of the second flipping plate 203. The short end of the L-shaped plate 212 is located near the drive shaft 201, and the long end of the L-shaped plate 212 limits both sides of the film. The short end abuts against one end of the film. A limiting groove 213 extending through to the bottom surface of the second flipping plate 203 is provided inside the short end of the L-shaped plate 212. A first positioning plate 214 is slidably fitted in the limiting groove 213. The first positioning plate 214 is U-shaped, and its two protruding parts are located on the upper and lower sides of the connecting plate 2022, respectively. The first positioning plate 214 is located on the connecting plate 2022. The protruding part below 22 is fitted onto the slide rod 215. One end of the slide rod 215 is mounted on the connecting plate 2022, and the other end is provided with a connecting frame 216. The connecting frame 216 is also connected to the connecting plate 2022. A second spring 217 is fitted onto the slide rod 215. The two ends of the second spring 217 are respectively connected to the first positioning plate 214 and the connecting frame 216, and are always in a stretched state. Under the stretching of the second spring 217, the first positioning plate 214 will contact the surface of the connecting plate 2022, thereby pressing the film tightly. Furthermore, a soft pad, such as rubber, is wrapped around the protruding part of the first positioning plate 214 above the connecting plate 2022 to prevent the film from being squeezed and deformed.

[0039] Specifically, such as Figures 3-6As shown, to further improve the positioning effect and adapt to films of different lengths, a groove 218 extending through to the bottom surface of the connecting plate 2022 is provided on the inner side of the long end of the L-shaped plate 212 along its length direction. A second positioning plate 219 is slidably fitted within the groove 218. The second positioning plate 219 moves both along the length and width direction of the groove 218. The second positioning plate 219 is also U-shaped, and its lower end is fitted onto the moving rod 220. A guide groove 221 is provided on the bottom surface of the connecting plate 2022 along its length direction. One end of the moving rod 220 is slidably fitted into the guide groove 221. The moving rod 220 also has... The guide groove 221 moves along its trajectory. The other end of the moving rod 220 is provided with a connecting plate 222. A screw passes through the connecting plate 222, thereby locking the connecting plate 222 and the connecting plate 2022. The upper end of the second positioning plate 219 is located above the connecting plate 2022 and is also covered with a soft pad. A third spring 223 is also sleeved on the moving rod 220. The two ends of the third spring 223 are respectively connected to the connecting plate 222 and the second positioning plate 219, and are always in a stretched state, so that the upper end of the positioning plate 219 abuts against the connecting plate 2022, thereby positioning the other end of the film and effectively preventing the film from floating during the flipping process.

[0040] Specifically, such as Figures 3-6 As shown, due to the elastic force of the second spring 217 and the third spring 223, the upper protruding parts of the first positioning plate 214 and the second positioning plate 219 will abut against the connecting plate 2022. At this time, the diaphragm cannot move onto the connecting plate 2022. Therefore, a push block 224 is provided below the first positioning plate 214 and the second positioning plate 219. The push block 224 moves along the width direction of the first recess 101. The push block 224 is U-shaped and its opening faces the first flip plate 202. The side of the push block 224 facing the connecting plate 2022 has an inclined surface, which is used to contact the edge of the first positioning plate 214 or the second positioning plate 219. As the push block 224 moves towards the center of the first recess 101, Under the pressure of the inclined plane, the first positioning plate 214 and the second positioning plate 219 are forced to move upward. A certain gap is left between the upper protruding part of the first positioning plate 214 and the second positioning plate 219 and the connecting plate 2022. The film moves smoothly to the connecting plate 2022 under the conveying of the roller 104 until one end of the film abuts against the short end of the L-shaped plate 212. The inclined plane near the bottom of the push block 224 is also provided with a stepped part, which is used to contact the flat part of the first positioning plate 214 or the second positioning plate 219 to provide support for the first positioning plate 214 and the second positioning plate 219 and prevent the push block 224 from being pressed back under the elastic force of the second spring 217 and the third spring 223.

[0041] Specifically, such as Figures 3-6As shown, one end of the push block 224 is connected to the moving end of the second telescopic rod 225. The push block 224 moves along the width direction of the first recess 101 by the back-and-forth extension and retraction of the second telescopic rod 225. The second telescopic rod 225 located below the first positioning plate 214 is mounted on the support frame 100. Since the second positioning plate 219 can move along the length direction of the slide groove 218, the fixed end of the second telescopic rod 225 located below the second positioning plate 219 is mounted on the first moving frame 226. The first moving frame 226 is slidably mounted on the support frame 100 and locked with screws. The two side walls of the first recess 101 are provided with grooves 105 and elongated holes 106. The elongated holes 106 are arranged along the length direction of the first recess 101. When the second flip plate 203 rotates, the push block 224 is located in the grooves 105 and elongated holes 106 respectively, avoiding interference between the push block 224 and the connecting plate 2022.

[0042] More specifically, such as Figure 6 As shown, a slider is provided on the first movable frame 226, and a through groove 110 is provided on the bottom surface of the elongated hole 106. The slider slides in the through groove 110 and provides a limiting function during the movement of the first movable frame 226.

[0043] Specifically, such as Figures 1-3 , Figures 7-8 As shown, one end of the first transfer plate 301 is connected to the moving end of the third telescopic rod 303. The third telescopic rod 303 is installed on the bottom surface of the extension plate 103. Driven by the third telescopic rod 303, the first transfer plate 301 moves back and forth between the first recess 101 and the second recess 102. Both sides of the bottom surface of the first transfer plate 301 are provided with protruding plates 304 along the length direction. A connecting rod 305 passes through the protruding plate 304. One end of the connecting rod 305 is connected to the second transfer plate 302, so that the second transfer plate 302 is connected to the first transfer plate 301. The first flip plate 202 and the second flip plate 203 flip. At 180 degrees, the film is flipped over to be above the first transfer plate 301 and the second transfer plate 302. At this time, the second telescopic rod 225 is activated, which will disengage the first positioning plate 214 and the second positioning plate 219 from the connecting plate 2022, and the film will fall downwards. Multiple suction holes 306 are provided on the surfaces of the first transfer plate 301 and the second transfer plate 302 to adsorb the film and prevent the film from floating during horizontal movement. The top surface of the second transfer plate 302 is provided with an L-shaped partition 313. When the film is on the first transfer plate 301, the film is located between the two partitions 313.

[0044] Specifically, such as Figures 1-3 , Figures 7-8As shown, to prevent the end of the film near the bearing mechanism 400 from remaining above the first positioning plate 214 when it falls, the transfer mechanism 300 also includes two symmetrically arranged pressure rods 307. One end of the pressure rod 307 is sleeved on the rotating shaft 308, the upper end of the rotating shaft 308 is mounted on the lifting plate 309 and connected to the first motor 310, which is also mounted on the lifting plate 309. The lifting plate 309 is connected to the moving end of the fourth telescopic rod 311. The first motor 310 drives the rotating shaft 308 to rotate, so that the length direction of the pressure rod 307 is parallel to the length direction of the first recess 101. Then the fourth telescopic rod 311 moves the lifting plate 309 downward. Then, the pressure rod 307 presses the film down, so that the two corners of the film facing the second recess 102 also fall on the second transfer plate 302, which facilitates the transfer of the film. When the second flip plate 203 rotates, the length direction of the pressure rod 309 is parallel to the width direction of the first recess 101, thereby avoiding interference with the second flip plate 203. The fourth telescopic rod 311 is installed on the second moving frame 312. The second moving frame 312 is slidably mounted on the support frame 100 and moves along its length direction. It is best to connect the second moving frame 312 to the first moving frame 226 so that it moves synchronously with the first moving frame 226, so that films of different lengths can be pressed downwards.

[0045] Specifically, such as Figures 1-2 , Figure 9 As shown, a support frame 107 is provided below the second recess 102, and a support plate 401 is provided above the support frame 107. The two sides of the support plate 401 are connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed on the support frame 107. The vertical lifting mechanism can be driven by a motor screw structure. A locking block 403 is provided on the support plate 401 near the first recess 101, and the locking block 403 is located on the center line of the length direction of the support plate 401. The bottom surface of the stacking plate 402 is provided with a slot 404. In application, the locking block 403 cooperates with the slot 404 to align the center line of the stacking plate 402 with the center line of the support plate 401, ensuring that the film transferred by the transfer mechanism 300 can fall smoothly onto the stacking plate 402.

[0046] Specifically, and to prevent the film from drifting elsewhere during its descent, such as... Figures 1-2 , Figure 9As shown, through holes 405 are provided at the four corners of the support plate 401 and the support frame 107. Vertically arranged clamping plates 406 are provided in the through holes 405. The clamping plates 406 are L-shaped. The four corners of the stacking plate 402 are provided with L-shaped recesses. The inner corners of the clamping plates 406 cooperate with the recesses. When the film is placed on the stacking plate 402, the stacking plate 402 moves to the top under the drive of the vertical lifting mechanism. The inner corners of the clamping plates 406 limit the four corners of the film, so that it can only fall on the stacking plate 402. The clamping plates 406 do not move up and down with it. As more and more films are placed, the stacking plate 402 gradually moves downward. In order to accommodate films of different sizes, the clamping plates 406 located at the same end of the length direction of the support plate 401 are symmetrically arranged and move towards each other. The two clamping plates 406 away from the first recess 101 move along the length direction of the support plate 401.

[0047] More specifically, such as Figures 1-2 , Figure 9 As shown, the clamping plates 406 located at the same end of the bearing plate along the length direction are respectively sleeved on the two sections of the thread of the bidirectional screw 409. The two sections of the thread have opposite directions of rotation, so when the bidirectional screw 409 rotates, the clamping plates 406 can move towards each other. The bidirectional screw 409 can be installed in the crossbar 410. The crossbar 410 is installed on the bottom surface of the bearing frame 107. One end of the bidirectional screw 409 is connected to the second motor 411. The second motor 411 is installed on the crossbar 410. The crossbar 410 away from the first recess 101 is connected to the moving end of the sixth telescopic rod 412. The sixth telescopic rod 412 is installed on the bottom surface of the bearing frame 107 and is set along the length direction of the support frame 100.

[0048] Specifically, such as Figures 1-2 , Figure 9 As shown, the support frame 107 is also equipped with a baffle 108. The top surface of the baffle 108 is flush with the top surface of the first transfer plate 301 and is located between the two first transfer plates 301. A stop block 407 is provided above the baffle 108. The stop block 407 is connected to the moving end of the vertically arranged fifth telescopic rod 408. The fifth telescopic rod 408 is installed on the support frame 100. When the first transfer plate 301 moves to below the second recess 102, the fifth telescopic rod 408 drives the stop block 407 to descend, and the stop block 407 abuts against the baffle 108. Then, the first transfer plate 301 is retracted. The film on the first transfer plate 301 is always located below the second recess 102 due to the obstruction of the stop 407. After the first transfer plate 301 is fully reset, the film is on the stacking plate 402, and the stop 108 can also provide a limiting effect on the film. After stacking is completed, the support plate 401 is raised to the highest position, and then the stacking plate 402 is removed. An L-shaped plate is installed at each of the four corners of the stacking plate 402, and a new stacking plate 402 is placed on the support plate.

[0049] Specifically, such as Figures 1-2 , Figure 7 Partitions 109 are provided on the connecting plate 2022 of the extension plate 103 and the second flip plate 203. When the connecting plate 2022 is in a horizontal state, the partitions 109 are flush with the side facing the roller 104, and the partitions 109 are flush with the inner side of the short end of the L-shaped plate 212. When the roller 104 conveys the film onto the connecting plate 2022, it can block the film and prevent the film from moving further.

[0050] like Figures 1-9 As shown, another aspect of this application provides an optical thin film stacking method, which uses the optical thin film stacking apparatus described above, including:

[0051] S01. The cut optical film is conveyed to the extension plate 103, with both sides of the optical film located on the connecting plate 2022.

[0052] S02. The first positioning plate 214 and the second positioning plate 219 are used to limit the two sides of the optical film. The first flip plate 202 and the second flip plate 203 are flipped 180 degrees so that the optical film falls on the first transfer plate 301 and the two sides of the optical film are located on the second transfer plate 302.

[0053] S03, the first transfer plate 301 and the second transfer plate 302 transfer the optical film to the top of the stacking plate 402, and when the first transfer plate 301 and the second transfer plate 302 are reset, the optical film is prevented from moving with the stop block 407 and the stop plate 108, so that the optical film falls on the stacking plate 402.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. An optical thin film stacking device, characterized in that, include: The support frame (100) has a first recess (101) and a second recess (102). The first recess (101) has two extension plates (103) along its length. The extension plates (103) are provided with rollers (104) for conveying film. A flipping mechanism (200) is installed in the first recess (101) and includes a drive shaft (201) arranged along the width direction of the first recess (101) and two symmetrically arranged and moving towards each other. A plurality of first flipping plates (202) are provided between the two flipping components. Each flipping component includes a second flipping plate (203). The first flipping plate (202) and the second flipping plate (203) are both composed of a collar (2021) and two connecting plates (2022) arranged on the periphery of the collar (2021) and symmetrically arranged at the center. The collar (2021) is sleeved on the drive shaft (201), and the connecting plate (2022) is used to receive the film and flip it. The transfer mechanism (300) is located below the support frame (100) and includes two first transfer plates (301) that move back and forth between the first recess (101) and the second recess (102). A second transfer plate (302) is also provided on the outside of the first transfer plate (301). The two second transfer plates (302) are symmetrically arranged and move towards each other. The second transfer plates (302) move synchronously with the first transfer plates (301) to receive and transfer the film. The support mechanism (400) is located below the second recess (102) and includes a support plate (401) that moves in a vertical direction. The support plate (401) is provided with a stacking plate (402) for stacking the film received by the transfer mechanism (300). The connecting plate (2022) of the second flip plate (203) is provided with an L-shaped plate (212) along its length direction, and the short end of the L-shaped plate (212) is located in the direction close to the drive shaft (201). The inner side of the short end of the L-shaped plate (212) is provided with a limiting groove (213) that extends to the bottom surface of the second flip plate (203). A first positioning plate (214) is slidably fitted in the limiting groove (213). The inner side of the long end of the L-shaped plate (212) is also provided with a groove (218) that extends through to the bottom surface of the connecting plate (2022) along its length direction. A second positioning plate (219) is slidably fitted in the groove (218), and the second positioning plate (219) is arranged along the length direction of the groove (218). A push block (224) is also provided below the first positioning plate (214) and the second positioning plate (219) for pushing the first positioning plate (214) and the second positioning plate (219) upward. One end of the push block (224) is connected to the moving end of the second telescopic rod (225). The second telescopic rod (225) located below the first positioning plate (214) is installed on the support frame (100). The second telescopic rod (225) located below the second positioning plate (219) is also provided below the second positioning plate (219). The fixed end of the rod (225) is mounted on the movable frame (226), which is slidably mounted on the support frame (100) and locked with screws. The two side walls of the first recess (101) are provided with grooves (105) and elongated holes (106). The elongated holes (106) are arranged along the length direction of the first recess (101). When the second flip plate (203) rotates, the push block (224) is located in the grooves (105) and the elongated holes (106) respectively. The push block (224) is U-shaped and its opening faces the first flip plate (202). The push block (224) has a slope on the side facing the connecting plate (2022). The slope is used to contact the edge of the first positioning plate (214) or the second positioning plate (219). The end of the slope near the bottom of the push block (224) is also provided with a stepped part, which is used to contact the planar part of the first positioning plate (214) or the second positioning plate (219).

2. The optical thin film stacking device according to claim 1, characterized in that, The second flip plate (203) is provided with a connecting ring (204) on the outside. The connecting ring (204) is provided with a T-shaped groove (205) on the outside. Four connecting blocks (206) are slidably fitted in the groove (205). Two of the connecting blocks (206) are provided with guide rods (207) at one end. The guide rods (207) are passed through the support plate (208). The support plate (208) is installed on the support frame (100). A first spring (209) is sleeved on the guide rod (207). A retaining ring (210) is also provided at one end of the guide rod (207). The two ends of the first spring (209) abut against the support plate (208) and the retaining ring (210) respectively, and are always in a compressed state. Two of the other connecting blocks (206) are connected to the moving end of the first telescopic rod (211), which is mounted on the support frame (100).

3. The optical thin film stacking device according to claim 1, characterized in that, The first positioning plate (214) is U-shaped, and its two protruding parts are located on the upper and lower sides of the connecting plate (2022) respectively. The protruding part of the first positioning plate (214) located below the connecting plate (2022) is sleeved on the slide rod (215). One end of the slide rod (215) is installed on the connecting plate (2022), and the other end is provided with a connecting frame (216). The connecting frame (216) is also connected to the connecting plate (2022). A second spring (217) is sleeved on the slide rod (215). The two ends of the second spring (217) are respectively connected to the first positioning plate (214) and the connecting frame (216), and are always in a stretched state.

4. The optical thin film stacking device according to claim 1, characterized in that, The second positioning plate (219) is also U-shaped, and its lower end is sleeved on the moving rod (220). The bottom surface of the connecting plate (2022) is provided with a guide groove (221) along its length. One end of the moving rod (220) is slidably fitted in the guide groove (221). The other end of the moving rod (220) is provided with a connecting plate (222). A screw is passed through the connecting plate (222) and locked to the connecting plate (2022). A third spring (223) is also sleeved on the moving rod (220). The two ends of the third spring (223) are respectively connected to the connecting plate (222) and the second positioning plate (219) and are always in a stretched state.

5. The optical thin film stacking device according to claim 1, characterized in that, One end of the first transfer plate (301) is connected to the moving end of the third telescopic rod (303). The third telescopic rod (303) is installed on the bottom surface of the extension plate (103). Both sides of the bottom surface of the first transfer plate (301) are provided with protruding plates (304) along the length direction. A connecting rod (305) is passed through the protruding plate (304). One end of the connecting rod (305) is connected to the second transfer plate (302). The surfaces of the first transfer plate (301) and the second transfer plate (302) are provided with multiple suction holes (306) for adsorbing the film. Furthermore, the top surface of the second transfer plate (302) is provided with an L-shaped partition (313), and in application, the film is located between the two partitions (313).

6. The optical thin film stacking device according to claim 1, characterized in that, The transfer mechanism (300) also includes two symmetrically arranged pressure rods (307). One end of the pressure rod (307) is sleeved on the rotating shaft (308). The upper end of the rotating shaft (308) is installed on the lifting plate (309) and connected to the first motor (310). The first motor (310) is also installed on the lifting plate (309). The lifting plate (309) is connected to the moving end of the fourth telescopic rod (311). The fourth telescopic rod (311) is installed on the second moving frame (312). The second moving frame (312) is slidably disposed on the support frame (100) and moves along its length.

7. The optical thin film stacking device according to claim 1, characterized in that, A support frame (107) is provided below the second recess (102). The support plate (401) is located above the support frame (107). The two sides of the support plate (401) are connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed on the support frame (107). A locking block (403) is provided on the support plate (401) near the first recess (101). The locking block (403) is located on the center line of the length direction of the support plate (401). The bottom surface of the stacking plate (402) is provided with a slot (404). When in use, the locking block (403) cooperates with the slot (404). The support plate (401) and the support frame (107) are provided with through holes (405) at the four corners. Vertically arranged card plates (406) are provided in the through holes (405). The card plates (406) are L-shaped. The stacking plate (402) is provided with L-shaped recesses at the four corners. The inner corners of the card plates (406) cooperate with the recesses. The card plates (406) located at the same end of the length direction of the support plate (401) are symmetrically arranged and move towards each other. The two card plates (406) away from the first recess (101) move along the length direction of the support plate (401).

8. The optical thin film stacking apparatus according to claim 7, characterized in that, The support frame (107) is also provided with a baffle (108). The top surface of the baffle (108) is flush with the top surface of the first transfer plate (301) and is located between the two first transfer plates (301). A stop block (407) is provided above the baffle (108). The stop block (407) is connected to the moving end of the vertically arranged fifth telescopic rod (408). The fifth telescopic rod (408) is installed on the support frame (100). When in use, the stop block (407) abuts against the baffle (108).

9. An optical thin film stacking method, using the optical thin film stacking apparatus as described in any one of claims 1 to 8, characterized in that, include: S01. The cut optical film is transported to the extension plate (103), with both sides of the optical film located on the connecting plate (2022); S02. Limit and flip the two sides of the optical film so that the optical film falls on the first transfer plate (301) and the two sides of the optical film are located on the second transfer plate (302). S03, the first transfer plate (301) and the second transfer plate (302) transfer the optical film to the top of the stacking plate (402), and when the first transfer plate (301) and the second transfer plate (302) are reset, the optical film falls onto the stacking plate (402).

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