An automatic lens film applicator

Abstract

This invention relates to an automatic lens laminating machine, belonging to the field of high-end customized resin lenses technology. It includes a loading and unloading mechanism, a conveying mechanism, a positioning conveying mechanism, a paper preparation and waste paper recycling mechanism, a main film cutting system, and a robotic arm mechanism. The loading and unloading mechanism comprises a loading mechanism and an unloading mechanism, distributed at both ends of the conveyor belt mechanism. The positioning conveying mechanism is slidably disposed below the main film cutting system, including horizontal conveying and longitudinal movement. The main film cutting system comprises a centering mechanism, a film pressing mechanism, and a blade changing mechanism. The centering mechanism, film pressing mechanism, and positioning conveying mechanism work together to complete the lamination, and the blade changing mechanism selects a suitable blade to separate the laminated lens from the adhesive tape roll. The robotic arm mechanism is disposed between the conveying mechanism and the working chamber area. The adhesive tape and waste paper recycling mechanism is disposed on both sides of the working chamber, and the paper preparation and waste paper recycling mechanism includes a paper preparation and recycling mechanism, an auxiliary mechanism, and a waste paper recycling mechanism.

Description

Technical Field

[0001] This invention relates to an automatic lens coating machine, belonging to the field of high-end customized resin lenses technology. Background Technology

[0002] Currently, with the development of the optics and machine tool industries, more comfortable lenses suitable for human eyes can be processed and produced. These include high-end customized lenses such as allofocal lenses, ring focal lenses, and progressive multifocal lenses. High-end customized lenses offer high wearing comfort, effectively relieve eye fatigue, and have significant effects on vision control in teenagers. Due to their significant advantages, high-end customized lenses are increasingly recognized by consumers, and their market share is increasing year by year. The processing of high-end customized lenses differs from that of traditional lenses due to their unique characteristics. This invention provides a lens coating machine as a pre-processing step in their production.

[0003] In the production and processing of high-end customized resin lenses, a protective film needs to be applied to the front surface of the lens to prevent deformation and scratches during subsequent lens fixing and processing. Existing film application machines require manual operation for this process. Improper operation of these machines easily leads to scratches on the lens surface and significant wear and tear on the protective film.

[0004] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create an automatic lens film applicator, which would have greater industrial application value. Summary of the Invention

[0005] To address the aforementioned technical problems, the purpose of this invention is to provide an automatic lens coating machine.

[0006] The present invention provides an automatic lens coating machine.

[0007] It includes a loading and unloading mechanism, a conveying mechanism, a positioning and conveying mechanism, a paper preparation and waste paper recycling mechanism, a main film cutting system, and a robotic arm mechanism;

[0008] The loading and unloading mechanism includes two parts: a loading mechanism and a unloading mechanism, which are distributed at both ends of the conveyor belt mechanism and are used for loading and unloading.

[0009] The positioning and conveying mechanism is slidably arranged below the main cutting system and includes two parts: horizontal conveying and longitudinal movement. It is used for the lens to enter the working chamber area from the conveying mechanism area and for the finished product to exit the working chamber area.

[0010] The main film cutting system includes three parts: a centering mechanism, a film pressing mechanism, and a blade changing mechanism. The centering mechanism, film pressing mechanism, and positioning and conveying mechanism work together to complete the film application, and the blade changing mechanism selects a suitable blade to separate the film-applied lens from the tape roll.

[0011] The robotic arm mechanism is positioned between the conveying mechanism and the working chamber area for grasping lenses;

[0012] The tape and waste paper recycling mechanism is located on both sides of the working chamber. The paper preparation and waste paper recycling mechanism includes a paper preparation and recycling mechanism, an auxiliary mechanism, and a waste paper recycling mechanism, which are used to rewind the tape and collect waste paper.

[0013] Furthermore, the feeding mechanism includes a longitudinal pushing main cylinder, a longitudinal pushing main cylinder guide rod, a longitudinal pushing auxiliary cylinder guide rod, a longitudinal pushing auxiliary cylinder, a transverse pushing cylinder, a longitudinal pushing guide rail, a guide rail mounting plate, a material box clamping block, a cylinder connecting shaft, a transverse guide rod, and a bearing seat, used to feed stacked material boxes containing lenses into the conveying mechanism in batches.

[0014] Furthermore, the conveying mechanism includes a conveying motor, a conveying belt, a stop cylinder, a proximity switch, a tensioning sleeve, a locking sleeve, a stop lever, a stop cylinder mounting plate, a pivot pin, and a pivot pin mounting plate, for conveying lenses.

[0015] Furthermore, the tensioning sleeve is mounted on the pivot pin mounting plate via a pivot pin, and the conveyor belt engages with the conveyor motor via a roller. The tensioning sleeve and locking sleeve are used to tension the conveyor belt so that the conveyor belt does not slip or deviate from the track under the rotation of the conveyor motor.

[0016] Furthermore, the robotic arm mechanism includes an elastic suction cup, a vacuum rod, a suction cup connecting plate, a suction cup longitudinal pushing cylinder, a swing arm, a rotating column, and a rotating cylinder.

[0017] Furthermore, an elastic suction cup is provided at the lower end of the vacuum rod, and the vacuum rod is connected to the output end of the longitudinally arranged suction cup longitudinal push cylinder through a suction cup connecting plate.

[0018] Furthermore, the suction cup longitudinal push cylinder is connected to the rotary cylinder via a swing arm and a rotating column. By setting the rotation angle of the rotary cylinder, the suction cup longitudinal push cylinder is driven, and then the working state of the elastic suction cup can be accurately controlled to achieve the gripping and placement of the lens.

[0019] Furthermore, the horizontal conveying part of the positioning and conveying mechanism includes a rodless cylinder, a positioning and conveying guide rail module, a slider proximity switch, a hydraulic buffer, and a limit stop, while the longitudinal moving part includes an upper sealing cylinder, a V-shaped sealing ring, a disc, a vacuum tube, and an upper cutting cylinder.

[0020] Furthermore, positioning and conveying guide rail modules are installed on both sides of the rodless cylinder. The rodless cylinder and the positioning and conveying guide rail modules are connected by an aluminum plate. The rodless cylinder moves laterally and parallel with the positioning and conveying guide rail modules. Limit blocks are installed at both ends of the rodless cylinder. Hydraulic buffers and slider proximity switches are installed in the limit blocks.

[0021] Furthermore, the centering mechanism includes centering grippers, a centering cylinder, sensing baffles, and photoelectric switches. Two centering grippers are mounted on the front end of the centering cylinder via an aluminum block, and two sensing baffles are mounted on the rear end of each aluminum block, for a total of four. The four photoelectric switches are respectively installed at different positions on the mounting plate to detect the corresponding four sensing baffles.

[0022] Furthermore, the film pressing mechanism includes a film pressing cylinder, a cylinder connecting rod, a working chamber, a lower pressing plate, and a vacuum nozzle. The lower pressing plate is installed on the output end of the film pressing cylinder through two cylinder connecting rods. The adhesive tape passes through the middle of the lower pressing plate and the working chamber. After the lower end of the working chamber is sealed with the V-shaped sealing ring, the film pressing cylinder extends downward, and the lower pressing plate drives the adhesive tape to contact and seal with the upper surface of the working chamber.

[0023] Furthermore, the tool changing mechanism includes a stepper motor, a tool disc shaft timing belt, a downward pen-shaped cylinder, an upward pen-shaped cylinder, a tool disc shaft, a tool holder, a pull block, a tool disc, and a pressure block. The tool disc shaft meshes with the stepper motor via the tool disc shaft timing belt, and the tool disc is connected to the tool disc shaft via a thread. The pressure block is installed at the output end of the downward pen-shaped cylinder, and the pull block is installed at the output end of the upward pen-shaped cylinder.

[0024] Furthermore, the paper preparation and recycling mechanism includes a paper preparation and recycling structure mounting base plate, a tape film pulley, a belt, a paper preparation pulley, a one-way bearing mounting block, an optical shaft bearing seat, a paper tube, a tape expansion nylon sleeve, a cylinder, a bearing, and a one-way bearing.

[0025] Furthermore, the auxiliary mechanism includes a non-powered roller mounting block, a non-powered roller, a PTFE roller mounting block, and a PTFE roller. The non-powered roller is mounted on two non-powered roller mounting blocks and can rotate on the non-powered roller mounting blocks. The PTFE roller is mounted on a PTFE roller mounting block and can rotate on the PTFE roller mounting block.

[0026] Furthermore, the waste paper recycling mechanism includes a waste paper recycling structure mounting base plate, a geared motor, and a coupling. The functions and installation structure of the paper tube, the tape expansion nylon sleeve, the cylinder, and the bearing are consistent with those of the paper preparation and recycling mechanism.

[0027] By means of the above-described solution, the present invention has at least the following advantages:

[0028] The automatic lens coating machine of this invention adopts a fully automatic lens feeding, coating, cutting and unloading process, eliminating the need for manual coating, saving a lot of manpower and resources, improving lens coating efficiency, increasing production capacity, and ensuring precise coating without scratching the lens surface or damaging the protective film. It effectively avoids lens deformation and scratches on the lens surface during subsequent lens fixing and processing, and has broad application prospects.

[0029] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the main structure of the loading and unloading mechanism of the present invention;

[0033] Figure 3 , Figure 4 This is a detailed schematic diagram of the loading and unloading mechanism of the present invention;

[0034] Figure 5 This is a three-dimensional structural schematic diagram of the conveying mechanism of the present invention;

[0035] Figure 6 , Figure 7 This is a detailed schematic diagram of the conveying mechanism of the present invention;

[0036] Figure 8 This is a schematic diagram of the main structure of the robotic arm mechanism of the present invention;

[0037] Figure 9 This is a front view schematic diagram of the positioning and conveying mechanism of the present invention;

[0038] Figure 10 This is a three-dimensional structural schematic diagram of the positioning and conveying mechanism of the present invention;

[0039] Figure 11 This is a three-dimensional structural diagram of the main body film cutting system of the present invention;

[0040] Figure 12 This is a three-dimensional structural schematic diagram of the centering mechanism of the present invention;

[0041] Figure 13 This is a three-dimensional structural schematic diagram of the tape film pressing mechanism of the present invention;

[0042] Figure 14 This is a cross-sectional view of the tape film pressing mechanism of the present invention;

[0043] Figure 15 This is a three-dimensional structural schematic diagram of the automatic blade adjustment mechanism of the present invention;

[0044] Figure 16 This is a three-dimensional structural diagram of the paper preparation and waste paper recycling mechanism of the present invention;

[0045] Figure 17 This is a front view structural schematic diagram of the paper preparation and recycling mechanism of the present invention;

[0046] Figure 18 This is a cross-sectional view of the paper preparation and recycling mechanism of the present invention;

[0047] Figure 19 This is a schematic diagram of the main structure of the waste paper recycling mechanism of the present invention;

[0048] Figure 20 This is a cross-sectional view of the waste paper recycling mechanism of the present invention;

[0049] In the diagram: 100-Loading / Unloading Mechanism, 101-Loading / Unloading Longitudinal Push Main Cylinder, 102-Longitudinal Push Main Cylinder Guide Rod, 103-Longitudinal Push Auxiliary Cylinder Guide Rod, 104-Loading / Unloading Longitudinal Push Auxiliary Cylinder, 105-Transverse Push Cylinder, 106-Longitudinal Push Guide Rail Slider, 107-Guide Rail Mounting Plate, 108-Material Box Clamping Block, 109-Cylinder Connecting Shaft, 110-Transverse Guide Rod, 111-Bearing Seat, 200-Conveying Mechanism, 201-Conveying Motor, 202-Conveying Belt, 203-Stop Cylinder, 204-Proximity Switch, 205-Tension Sleeve, 206-Locking Sleeve, 207-Stop Lever, 208- Stop cylinder mounting plate 209-rotary shaft pin, 210-rotary shaft pin mounting plate, 300-robotic arm mechanism, 301-elastic suction cup, 302-vacuum pull rod, 303-suction cup connecting plate, 304-suction cup longitudinal push cylinder, 305-swing arm, 306- Rotating column, 307-rotary cylinder, 400-positioning conveyor mechanism, 401-rodless cylinder, 402-positioning conveyor guide rail module, 403-top sealing cylinder, 404-V-ring seal, 405-disc, 406-vacuum tube, 407-top film cutting cylinder, 408-slider proximity switch, 409-hydraulic buffer, 410-limit stop, 500-main film cutting system, 501-stepper motor, 502-cutter head shaft synchronous belt, 503-down pressure pen-shaped cylinder, 504-up pull pen-shaped cylinder, 505-cutter head shaft, 506-cutter handle, 507-film pressure cylinder, 508-cylinder connecting rod, 509- Working chamber, 510-centering gripper, 511-centering cylinder, 512-induction baffle, 513-photoelectric switch, 514-pull block, 515-cutter disc, 516-pressure block, 517-lower pressure plate, 518-vacuum nozzle, 600-paper preparation and waste paper recycling mechanism, 601-paper preparation and recycling structure mounting base plate, 602-non-powered roller mounting block, 603-non-powered roller, 604-PTFE roller mounting block, 605-PTFE roller, 606-waste paper recycling structure mounting base plate, 607-adhesive tape pulley, 608-belt, 609-paper preparation pulley, 610-one-way bearing mounting block, 611-optical shaft bearing seat. 612-Paper tube, 613-Adhesive tape expansion nylon sleeve, 614-Cylinder, 615-Bearing, 616-One-way bearing, 617-Gear motor, 618-Coupling. Detailed Implementation

[0050] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0051] like Figure 1As shown, an automatic lens film applicator includes a loading and unloading mechanism, a conveyor belt mechanism 200, a positioning and conveying mechanism 300, a paper preparation and waste paper recycling mechanism 400, a main film cutting system 500, and a robotic arm mechanism 600.

[0052] like Figure 1 and Figure 2 As shown, the loading and unloading mechanism is divided into two parts: the loading mechanism and the unloading mechanism, which are located at both ends of the conveyor belt mechanism.

[0053] The feeding mechanism includes a longitudinal pushing main cylinder 101, a longitudinal pushing main cylinder guide rod 102, a longitudinal pushing auxiliary cylinder guide rod 103, a longitudinal pushing auxiliary cylinder 104, a transverse pushing cylinder 105, a longitudinal pushing guide rail 106, a guide rail mounting plate 107, a material box clamping block 108, a cylinder connecting shaft 109, a transverse guide rod 110, and a bearing seat 111. Under the action of the guide rods 102 and 103, the longitudinal pushing main cylinder 101 and the longitudinal pushing auxiliary cylinder 104 cause the longitudinal pushing guide rail slider 106 to achieve two strokes on the guide rail mounting plate 107. Figure 3 and Figure 4 As shown, during the two strokes of the longitudinal push guide slider 106, the material box clamping block 108 is driven by the extension and retraction of the lateral push cylinder 105 to extend and retract the cylinder connecting shaft 109 laterally. Figure 1 As shown, both sides of the conveyor mechanism are equipped with Figure 3 As shown in the mechanism, when the stacked material boxes are placed in the corresponding positions, the two longitudinal pushing main cylinders 101 push upwards to complete the first longitudinal stroke. At this time, the material box clamping block is at the height of the second material box. Then, the lateral pushing cylinder 105 extends horizontally to complete the clamping of the material box. Then, the longitudinal pushing auxiliary cylinder 104 continues to push upwards to complete the second stroke. The first material box is not clamped and is placed separately on the conveying mechanism.

[0054] The unloading mechanism works in the same way and has the same structure as the loading mechanism. The difference is that the horizontal pushing cylinder 105 extends and retracts at different positions in the longitudinal pushing direction, thereby realizing loading and unloading.

[0055] The feeding mechanism places the stacked material boxes into the conveying mechanism 200 in batches according to the working conditions;

[0056] like Figure 5 As shown, the conveying mechanism 200 includes a conveying motor 201, a conveying belt 202, a stop cylinder 203, a proximity switch 204, a tensioning sleeve 205, a locking sleeve 206, a stop lever 207, a stop cylinder mounting plate 208, a pivot pin 209, and a pivot pin mounting plate 210. Figure 6As shown, a proximity switch 204 is installed on the stop cylinder mounting plate 208, and a stop lever 207 is installed on the stop cylinder 203. The proximity switch 204 detects whether there is a material box at that position of the conveyor mechanism. When there is no material box, the feeding mechanism operates, placing a single material box on the conveyor belt 202. Simultaneously, the stop cylinder 203 extends upward, pushing the stop lever 207 upward, thus restricting the material box to the designated position. Figure 7 As shown, the tensioning sleeve 205 is mounted on the pivot pin mounting plate 210 via the pivot pin 209. The conveyor belt 202 engages with the conveyor motor 201 via a roller. The tensioning sleeve 205 and the locking sleeve 206 are used to tension the conveyor belt 202, so that the conveyor belt 202 does not slip or deviate from the track under the rotation of the conveyor motor 201.

[0057] like Figure 8 As shown, the robotic arm mechanism 300 includes an elastic suction cup 301, a vacuum rod 302, a suction cup connecting plate 303, a suction cup longitudinal pushing cylinder 304, a swing arm 305, a rotating column 306, and a rotating cylinder 307. The lower end of the vacuum rod 302 is provided with the elastic suction cup 301. The vacuum rod 302 is connected to the output end of the longitudinally arranged suction cup longitudinal pushing cylinder 304 via the suction cup connecting plate 303. The vacuum rod 302 is equipped with a spring. When the suction cup longitudinal pushing cylinder 304 pushes downwards, the elastic suction cup 301 contacts and compresses the lens, causing the spring in the vacuum rod 302 to deform, making the elastic suction cup 301 fit more effectively with the lens. Then, the vacuum rod 302 sucks air to grasp the lens, the suction cup longitudinal pushing cylinder resets, and the vacuum rod and the adsorbed lens are moved to a safe position.

[0058] The suction cup longitudinal push cylinder 304 is connected to the rotary cylinder 307 via the swing arm 305 and the rotating column 306. By setting the rotation angle of the rotary cylinder 307, the suction cup longitudinal push cylinder 304 is driven. Then, by accurately controlling the working state of the elastic suction cup 301, the lens can be grasped and placed.

[0059] The robotic arm mechanism 300 picks up the lens from the conveying mechanism 200 and rotates it to the positioning and conveying mechanism 400 area via the rotary cylinder 307;

[0060] like Figure 9 and Figure 10As shown, the positioning and conveying mechanism 400 includes two parts: horizontal conveying and longitudinal movement. The horizontal conveying part includes a rodless cylinder 401, a positioning and conveying guide rail module 402, a slider proximity switch 408, a hydraulic buffer 409, and a limit block 410. The longitudinal movement part includes an upper sealing cylinder 403, a V-shaped sealing ring 404, a disc 405, a vacuum tube 406, and an upper cutting cylinder 407. Positioning and conveying guide rail modules 402 are installed on both sides of the rodless cylinder 401, and the rodless cylinder 401 and the positioning and conveying guide rail modules 402 are connected by an aluminum plate. The rodless cylinder 401 moves laterally parallel to the positioning and conveying guide rail modules 402. Limit blocks 410 are installed at both ends of the rodless cylinder 401, and hydraulic buffers 409 and slider proximity switches 408 are installed in the limit blocks 410. The hydraulic buffers 409 and limit blocks 410 are used to achieve the positioning function for the horizontal movement of the lens. The slider proximity switch 408 detects and positions the conveyor rail module 402. The vacuum tube 406 is connected to the disk 405. During the horizontal movement, the vacuum tube 406 performs a vacuuming operation to hold the lens. The longitudinal movement has two strokes. The first stroke is achieved by the upper sealing cylinder 403, which pushes upward, causing the V-shaped sealing ring 404 and the upper cutting cylinder 407 to move upward as well. The upper cutting cylinder 407 continues to move upward, achieving the second stroke.

[0061] The positioning and conveying mechanism 400 first moves horizontally and achieves horizontal positioning through the limiting block 410; at this time, the lens on the disc 405 is below the main cutting system 500, and the longitudinal movement of the positioning and conveying mechanism 400 is alternately completed with the main cutting system 500.

[0062] like Figure 11 As shown, the main film cutting system 500 includes three parts: a centering mechanism, a film pressing mechanism, and a blade changing mechanism. Figure 12 As shown, the centering mechanism includes centering grippers 510, a centering cylinder 511, sensing baffles 512, and photoelectric switches 513. Two centering grippers 510 are mounted on the front end of the centering cylinder 511 via aluminum blocks, and two sensing baffles 512 are mounted on the rear end of each aluminum block, for a total of four. The four photoelectric switches 513 are respectively installed at different positions on the mounting plate to detect the corresponding four sensing baffles 512. During operation, the positioning and conveying mechanism 400 completes horizontal movement and is positioned below the main film cutting system 500. The centering cylinder 511 starts working, and the sliders at both ends drive the centering grippers 510 to perform centering until it is completed. The sensing baffles 512 move simultaneously with the sliders of the centering cylinder 511. Once centering is complete, the photoelectric switches detect the stopping position of the sensing baffles 512 and provide feedback on the lens diameter data. At the end of centering, the centering cylinder 511 stops centering, and the centering grippers 510 open.

[0063] After the positioning and conveying mechanism 400 opens with the grippers aligned, the upper sealing cylinder 403 pushes upward, and the V-shaped sealing ring engages with the working chamber 509 in the pressing mechanism. Figure 14 The end faces contact and seal. For example... Figure 13 and 14 As shown, the film pressing mechanism includes a film pressing cylinder 507, a cylinder connecting rod 508, a working chamber 509, a lower pressing plate 517, and a vacuum nozzle 518. The lower pressing plate 517 is mounted on the output ends of the film pressing cylinders 507A and 507B via two cylinder connecting rods 508. The adhesive tape passes through the space between the lower pressing plate 517 and the working chamber 509. After the lower end of the working chamber 509 is sealed with a V-shaped sealing ring, the film pressing cylinder 507 extends downwards, and the lower pressing plate 517 drives the adhesive tape to contact and seal the upper surface of the working chamber 509. The vacuum nozzle 518 is installed on a threaded through hole on the side of the working chamber 509. When the upper and lower ends of the working chamber 509 are sealed, the vacuum nozzle 518 begins to draw a vacuum, resulting in a tighter fit between the adhesive tape and the working chamber 509. The positioning and conveying mechanism 400 continues the second longitudinal stroke, and the upper cutting cylinder 407 pushes the disc 405 upward, so that the lens on the disc 405 is attached to the adhesive film, and the film application is completed.

[0064] The centering mechanism, film pressing mechanism, and positioning and conveying mechanism 400 work together to complete the film application. Afterward, the lens with the film applied needs to be separated from the tape roll by the blade changing mechanism.

[0065] like Figure 15As shown, the tool changing mechanism includes a stepper motor 501, a tool head shaft timing belt 502, a downward pressure pen-shaped cylinder 503, an upward pull pen-shaped cylinder 504, a tool head shaft 505, a tool holder 506, a pull block 514, a tool head 515, and a pressure block 516. The tool head shaft 505 meshes with the stepper motor 501 via the tool head shaft timing belt 502, and the tool head 515 is connected to the tool head shaft via threads. Tool holders A, B, C, and D are installed at four different positions on the tool head 515 using ball screws. Each of the two long sides of the tool holder 506 has two small round indentations, and the longitudinal movement and positioning of the tool holder 506 is achieved by utilizing the telescopic characteristic of the ball screw's front end. The output end of the downward-pressing pen-shaped cylinder 503 is equipped with a pressure block 516, and the output end of the upward-pulling pen-shaped cylinder 504 is equipped with a pull block 514. During operation, the stepper motor 501 drives the blade holder on the cutter disc 515 to rotate via the synchronous belt 502 on the cutter disc shaft. Based on the feedback lens data, it rotates at different angles to rotate the required blade holder below the pressure block 516. The downward-pressing pen-shaped cylinder 503 extends downward, pressing down the blade holder 506 mounted on the cutter disc 515. The blade holder 506 is equipped with a blade, which passes through the adhesive tape. The stepper motor 501 continues to work, thereby achieving film cutting. After film cutting is completed, the stepper motor 501 rotates an angle so that the working blade holder 506 is above the pull block 514. The upward-pulling pen-shaped cylinder 504 pulls upward, and the blade holder 506 returns to its original position. The positioning and conveying system 400 retracts its upper cutting cylinder 407 and upper sealing cylinder 403, and resets its horizontal rodless cylinder 401. The finished product returns to the area of ​​the robotic arm mechanism 300, where the robotic arm mechanism 300 places the finished product into the material box located in the conveying mechanism 200. At the same time, the paper preparation and waste paper recycling mechanism 600 starts working, rewinding the cut waste paper and the prepared paper.

[0066] like Figure 16 As shown, the paper preparation and waste paper recycling mechanism 600 generally comprises three parts. Figure 16 The paper preparation and recycling unit is on the left, the auxiliary unit is in the middle, and the waste paper recycling unit is on the right.

[0067] like Figure 17 and 18As shown, the paper preparation and recycling mechanism includes a paper preparation and recycling structure mounting base plate 601, a tape film pulley 607, a belt 608, a paper preparation pulley 609, a one-way bearing mounting block 610, an optical axis bearing seat 611, a paper tube 612, a tape expansion nylon sleeve 613, a cylinder 614, a bearing 615, and a one-way bearing 616. The bearing 615 is mounted on the optical axis bearing seat 611 to ensure that the optical axis does not tip over in the horizontal direction. The one-way bearing 616 is mounted on the one-way bearing mounting block 610, so that the upper paper tube 612 can only rotate in one direction, preventing the upper paper tube 612 from rewinding. The paper tube 612 is mounted on the tape expansion nylon sleeve 613 and connected to the optical axis through the cylinder 614. The adhesive tape installed on the lower paper tube 612 is divided into two parts: paper preparation and adhesive tape. The paper preparation is connected from the left side of the lower paper tube 612 upwards to the upper paper tube 612. The adhesive tape extends from the right side of 612 with the sticky side facing down, passes through the auxiliary mechanism and the main film cutting system 500, and is installed on the paper tube 612 of the waste paper recycling mechanism on the right side.

[0068] like Figure 16 As shown, the auxiliary mechanism includes a non-powered roller mounting block 602, a non-powered roller 603, a PTFE roller mounting block 604, and a PTFE roller 605. The non-powered roller 603 is mounted on two non-powered roller mounting blocks 602 and can rotate on them. The PTFE roller 605 is mounted on the PTFE roller mounting block 604 and can rotate on it. The tape passes sequentially from under the left non-powered roller 603, above the left PTFE roller 605, above the right PTFE roller 605, and under the right non-powered roller 603. This auxiliary mechanism assists in the smooth operation of the tape and restricts its movement to a small range, ensuring high-quality completion of the resin lens film application.

[0069] like Figure 19 As shown, the waste paper recycling mechanism includes a waste paper recycling structure mounting base plate 606, a reduction motor 617, and a coupling 618. Figure 20 As shown, the functions and installation structure of the paper tube 612, the tape expansion nylon sleeve 613, the cylinder 614, and the bearing 615 are consistent with those of the paper preparation and recycling mechanism. The optical shaft in the waste paper recycling mechanism is connected to the reduction motor 617 via a coupling 618. The reduction motor 617 drives the optical shaft, causing the paper tube 612 mounted on the optical shaft to rotate along with the reduction motor. The paper tube 612 drives the tape to work together. The operation of the waste paper recycling mechanism pulls the tape, causing the paper preparation and recycling mechanism to operate simultaneously. During operation, the amount of paper on the paper tube 612 increases, while the amount of tape on the paper tube 612 decreases. At this time, the tape pulley 607 slips on the belt 608, thus meeting the requirements for paper preparation and recycling.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic lens coating machine, characterized in that: It includes a loading and unloading mechanism, a conveying mechanism, a positioning and conveying mechanism, a paper preparation and waste paper recycling mechanism, a main film cutting system, and a robotic arm mechanism; The loading and unloading mechanism includes two parts: a loading mechanism and a unloading mechanism, which are distributed at both ends of the conveyor belt mechanism and are used for loading and unloading. The positioning and conveying mechanism is slidably arranged below the main cutting system and includes two parts: horizontal conveying and longitudinal movement. It is used for the lens to enter the working chamber area from the conveying mechanism area and for the finished product to exit the working chamber area. The main film cutting system includes three parts: a centering mechanism, a film pressing mechanism, and a blade changing mechanism. The centering mechanism, film pressing mechanism, and positioning and conveying mechanism work together to complete the film application, and the blade changing mechanism selects a suitable blade to separate the film-applied lens from the tape roll. The robotic arm mechanism is positioned between the conveying mechanism and the working chamber area for grasping lenses; The tape and waste paper recycling mechanism is located on both sides of the working chamber area. The tape preparation and waste paper recycling mechanism includes a tape preparation and recycling mechanism, an auxiliary mechanism, and a waste paper recycling mechanism, used for rewinding the tape and collecting waste paper. The horizontal conveying section includes a rodless cylinder, a positioning conveying guide rail module, a slider proximity switch, a hydraulic buffer, and a limit stop. The longitudinal moving section includes an upper sealing cylinder, a V-shaped sealing ring, a disc, a vacuum tube, and an upper film cutting cylinder. Positioning conveying guide rail modules are installed on both sides of the rodless cylinder. The rodless cylinder and the positioning conveying guide rail module are connected by an aluminum plate, and the rodless cylinder moves laterally parallel to the positioning conveying guide rail module. The rodless cylinder is equipped with limit blocks at both ends, and each limit block contains a hydraulic buffer and a slider proximity switch. The hydraulic buffer and limit blocks are used to position the lens during horizontal movement. The slider proximity switch is used to detect the position of the positioning and conveying guide module. The vacuum tube is connected to the disk, and during the horizontal movement, the vacuum tube performs a vacuuming operation to hold the lens in place. The longitudinal movement has two strokes. The first stroke is achieved by the upper sealing cylinder, which pushes upward, causing the V-shaped sealing ring and the upper cutting cylinder to move upward as well. The upper cutting cylinder continues to move upward to achieve the second stroke. The centering mechanism includes centering grippers, a centering cylinder, sensing baffles, and photoelectric switches. Two centering grippers are mounted on the front end of the centering cylinder via aluminum blocks, and two sensing baffles are mounted on the rear end of each aluminum block, for a total of four. The four photoelectric switches are respectively installed at different positions on the mounting plate to detect the corresponding four sensing baffles. The positioning and conveying mechanism completes horizontal movement and is positioned below the main film cutting system. The centering cylinder starts working, driving the centering grippers to perform centering. The film pressing mechanism includes a film pressing cylinder, a cylinder connecting rod, a working chamber, a lower pressing plate, and a vacuum nozzle. The lower pressing plate is mounted on the output end of the film pressing cylinder via two cylinder connecting rods. The adhesive film passes through the middle of the lower pressing plate and the working chamber. After the lower end of the working chamber is sealed with the V-shaped sealing ring, the film pressing cylinder extends downward, and the lower pressing plate drives the adhesive film to contact and seal with the upper end face of the working chamber. When the upper and lower ends of the working chamber are sealed, the vacuum nozzle starts to draw a vacuum, and the adhesive film adheres more tightly to the working chamber. The positioning and conveying mechanism continues the second longitudinal stroke, and the upper cutting cylinder pushes the disc upward. The lens on the disc adheres to the adhesive film, and the film application is completed. The tool changing mechanism includes a stepper motor, a tool disc shaft timing belt, a downward pen-shaped cylinder, an upward pen-shaped cylinder, a tool disc shaft, a tool holder, a pull block, a tool disc, and a pressure block. The tool disc shaft meshes with the stepper motor via the tool disc shaft timing belt, and the tool disc is connected to the tool disc shaft via threads. The pressure block is installed at the output end of the downward pen-shaped cylinder, and the pull block is installed at the output end of the upward pen-shaped cylinder.

2. The automatic lens coating machine according to claim 1, characterized in that: The feeding mechanism includes a longitudinal pushing main cylinder, a longitudinal pushing main cylinder guide rod, a longitudinal pushing auxiliary cylinder guide rod, a longitudinal pushing auxiliary cylinder, a transverse pushing cylinder, a longitudinal pushing guide rail, a guide rail mounting plate, a material box clamping block, a cylinder connecting shaft, a transverse guide rod, and a bearing seat, used to feed stacked material boxes containing lenses into the conveying mechanism in batches.

3. The automatic lens coating machine according to claim 1, characterized in that: The conveying mechanism includes a conveying motor, a conveying belt, a stop cylinder, a proximity switch, a tensioning sleeve, a locking sleeve, a stop lever, a stop cylinder mounting plate, a pivot pin, and a pivot pin mounting plate, and is used to convey lenses.

4. The automatic lens coating machine according to claim 3, characterized in that: The tensioning sleeve is mounted on the pivot pin mounting plate via a pivot pin. The conveyor belt meshes with the conveyor motor via a roller. The tensioning sleeve and locking sleeve are used to tension the conveyor belt so that the conveyor belt does not slip or deviate from the track under the rotation of the conveyor motor.

5. The automatic lens coating machine according to claim 1, characterized in that: The robotic arm mechanism includes an elastic suction cup, a vacuum rod, a suction cup connecting plate, a suction cup longitudinal pushing cylinder, a swing arm, a rotating column, and a rotating cylinder.

6. The automatic lens coating machine according to claim 5, characterized in that: The lower end of the vacuum rod is provided with an elastic suction cup, and the vacuum rod is connected to the output end of the longitudinally arranged suction cup longitudinal push cylinder through a suction cup connecting plate.

7. An automatic lens coating machine according to claim 5 or 6, characterized in that: The suction cup longitudinal push cylinder is connected to the rotary cylinder via a swing arm and a rotating column. By setting the rotation angle of the rotary cylinder, the suction cup longitudinal push cylinder is driven. Then, by accurately controlling the working state of the elastic suction cup, the lens can be grasped and placed.

8. The automatic lens coating machine according to claim 1, characterized in that: The rodless cylinder is equipped with positioning and conveying guide rail modules on both sides. The rodless cylinder and the positioning and conveying guide rail modules are connected by an aluminum plate. The rodless cylinder moves laterally and parallel with the positioning and conveying guide rail modules. Limit blocks are installed at both ends of the rodless cylinder. The limit blocks are equipped with hydraulic buffers and slider proximity switches.

9. An automatic lens coating machine according to claim 1, characterized in that: The paper preparation and recycling mechanism includes a paper preparation and recycling structure mounting base plate, a tape film pulley, a belt, a paper preparation pulley, a one-way bearing mounting block, an optical axis bearing seat, a paper tube, a tape expansion nylon sleeve, a cylinder, a bearing, and a one-way bearing.

10. An automatic lens coating machine according to claim 1, characterized in that: The auxiliary mechanism includes a non-powered roller mounting block, a non-powered roller, a PTFE roller mounting block, and a PTFE roller. The non-powered roller is mounted on two non-powered roller mounting blocks and can rotate on the non-powered roller mounting blocks. The PTFE roller is mounted on a PTFE roller mounting block and can rotate on the PTFE roller mounting block.

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