Automatic wiping method and automatic wiping system for lens workpiece

Abstract

The present invention discloses an automatic wiping method and an automatic wiping system for a lens workpiece, and belongs to the field of lens workpiece production. The automatic wiping method of the present invention controls the lens workpiece to maintain a standard production rhythm during the loading, unloading and wiping processes, so that the devices on the loading station, unloading station and wiping station can load, unload and wipe synchronously, thereby greatly improving the wiping efficiency of the lens workpiece; in addition, the present invention uses a method in which more than two wiping processes, at least one is a wet wiping station, at least one is a dry wiping station, and the last wiping station is always a dry wiping station, to wet and dry wipe the lens workpiece multiple times, thereby greatly improving the wiping effect of the automatic wiping method of the present invention on the lens workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of lens workpiece production, and more particularly to an automatic wiping method and an automatic wiping system for a lens workpiece. Background Art

[0002] Lens workpieces are often used in products such as watches, glasses, and photographic equipment. During the production process of the above products, oil stains may adhere to the lens workpieces. Before product assembly, the lens workpieces need to be wiped to ensure that the lenses have a high degree of cleanliness.

[0003] The traditional practice is to manually wipe the lens workpiece, which is inefficient and the yield of the lens workpiece after wiping is difficult to ensure. In order to improve efficiency, there is an automatic scrubbing device in the relevant field to realize the automatic wiping of the lens workpiece. For example, the Chinese patent document with application number 2022106711088 discloses a fully automatic lens scrubbing machine, which includes a frame and a main control, a locking structure, a reciprocating scrubbing structure, a lifting structure, a translation structure, a sub-slot structure and a main slot structure installed on the frame; the tooling for loading the lens is controlled by the main control to sequentially pass through the feeding slot, soaking slot, particle scrubbing slot, particle washing slot and rinsing slot of the main slot structure to complete the scrubbing of the lens, the locking structure locks the lens tooling, the reciprocating scrubbing structure scrubs the lens, the lifting structure and the translation structure circulate the lens tooling station, and the sub-slot structure circulates and filters the cleaning tank liquid.

[0004] The above application uses a reciprocating scrubbing structure to repeatedly insert the lens into the cleaning liquid, and uses the plastic particles in the cleaning liquid to scrub the lens. After scrubbing, the lens is transferred to a drying device for drying, or naturally dried to complete the cleaning. However, the fully automatic lens scrubbing machine of the above application has a complex structure and low production efficiency. If there is dirt in the cleaning liquid, after removing the cleaning liquid on the lens by drying or drying, stains will still remain, reducing the yield of the lens workpiece wiping process. Summary of the invention

[0005] The present invention aims to solve the problems of low production efficiency and poor wiping effect of lens workpiece wiping equipment in the prior art, and provides an automatic wiping method and an automatic wiping system for a lens workpiece.

[0006] The present invention provides an automatic wiping method for a lens workpiece, comprising the following steps:

[0007] Step 1: At the loading position, a plurality of lens workpieces are transferred by a loading device to a turntable of a workpiece transfer device and are sucked by a workpiece adsorption mechanism on the turntable; the turntable is provided with at least two wiping stations;

[0008] Step 2, within 3 unit times, the turntable rotates a first angle so that the workpiece adsorption mechanism with the lens workpiece adsorbed thereon reaches one of the at least two wiping stations;

[0009] Step 3: Within 1 unit time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be lifted from the transport height to the wiping height, and the lens workpiece is closely attached to the wiping cloth of the wiping device; within 11 unit times, the lifting and rotating mechanism drives the lens workpiece to rotate relative to the wiping cloth; within 1 unit time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be dropped from the wiping height to the transport height;

[0010] Step 4, repeating steps 2 and 3 until the lens workpiece is completely wiped by the wiping devices at all wiping stations;

[0011] Step 5, the turntable rotates to a first angle, the workpiece adsorption mechanism with the lens workpiece adsorbed arrives at the unloading position, and a plurality of lens workpieces are transferred to the loading tray by the unloading device;

[0012] Wherein, step 1 is completed within 12 unit time, and step 5 is completed within 12 unit time;

[0013] Among the at least two wiping stations, at least one wiping station is configured as a wet wiping station with a wet wiping device, and at least one wiping station is configured as a dry wiping station with a dry wiping device; when completing step 4, the wiping station where the lens workpiece is located is always a dry wiping station.

[0014] Furthermore, before executing step 3, detecting and determining whether the workpiece adsorption mechanism adsorbs the lens workpiece;

[0015] If the workpiece adsorption mechanism adsorbs the lens workpiece, executing step 3;

[0016] If the workpiece adsorption mechanism does not adsorb the lens workpiece, the lifting and rotating mechanism stops working, and after waiting for 13 unit times, step 4 is executed.

[0017] Furthermore, the wet wiping device comprises a press platform, the press platform is provided with a plurality of notches, the positions of the notches correspond to the positions of the lens workpieces adsorbed on the workpiece adsorption mechanism, and a nozzle is provided above the notches;

[0018] The step 3 comprises:

[0019] S31, within one unit of time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be lifted from the transport height to the wiping height, and the lens workpiece is brought into close contact with the wiping cloth of the wiping device; at the same time, the pressing platform descends and presses the wiping cloth from above;

[0020] S32, within 11 unit times, the lifting and rotating mechanism drives the lens workpiece to rotate relative to the wiping cloth; at the same time, the nozzle sprays cleaning liquid onto the wiping cloth;

[0021] S33. Within one unit of time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to drop from the wiping height to the transfer height; at the same time, the pressing platform rises and breaks contact with the wiping cloth.

[0022] Furthermore, the wet wiping device further comprises a first reel, a second reel and a plurality of third reels, the wiping cloth is drawn out from the first reel, guided by the plurality of third reels, and then wound on the second reel; the second reel is drivingly connected to the reel driving member;

[0023] When executing step 2, the reel driving member operates for 2 unit times, thereby driving the second reel to rotate.

[0024] Furthermore, a mounting hole is provided on the turntable, the mounting hole has a step structure, and the workpiece adsorption mechanism is placed in the mounting hole through the step structure;

[0025] In the step 2, the lifting and rotating mechanism is disengaged from the transmission cooperation with the workpiece adsorption mechanism, the turntable rotates relative to the lifting and rotating mechanism, and the workpiece adsorption mechanism rotates synchronously with the turntable.

[0026] Further, the lifting and rotating mechanism includes a lifting driving member, a first base, a rotating driving member, a rotating transmission shaft, and a second base, wherein the second base is mounted on the first base, and the rotating driving member and the rotating transmission shaft are arranged on the second base;

[0027] In step 3, the lifting drive member is used to drive the first base to rise and fall, and drives the lens workpiece to rise / fall relative to the wiping cloth through the rotating transmission shaft; the rotating drive member cooperates with the workpiece adsorption mechanism through the rotating transmission shaft to drive the lens workpiece to rotate relative to the wiping cloth.

[0028] Furthermore, the turntable is provided with a lifting mechanism at the loading position;

[0029] In step 1, the moving end of the lifting mechanism extends out, starts transmission cooperation with the workpiece adsorption mechanism, and then lifts the workpiece adsorption mechanism from the turntable; after the workpiece adsorption mechanism absorbs the lens workpiece, the moving end of the lifting mechanism retracts so that the workpiece adsorption mechanism is placed on the turntable; thereafter, the moving end of the lifting mechanism continues to retract until the lifting mechanism and the workpiece adsorption mechanism are out of transmission cooperation.

[0030] Furthermore, the turntable is provided with a lifting mechanism at the unloading position;

[0031] In step 5, the moving end of the lifting mechanism extends out, starts transmission cooperation with the workpiece adsorption mechanism, and then lifts the workpiece adsorption mechanism from the turntable; after the lens workpiece is removed from the workpiece adsorption mechanism, the moving end of the lifting mechanism retracts to place the workpiece adsorption mechanism on the turntable; thereafter, the moving end of the lifting mechanism continues to retract until the lifting mechanism and the workpiece adsorption mechanism are out of transmission cooperation.

[0032] An automatic wiping system for implementing the above-mentioned automatic wiping method of the present invention comprises a loading device, an unloading device, a workpiece transfer device and at least two wiping devices, wherein the workpiece transfer device comprises a turntable and a plurality of workpiece adsorption mechanisms arranged on the turntable; the loading device, the unloading device and the at least two wiping devices are arranged along the circumference of the turntable.

[0033] Furthermore, a material tray transfer device is arranged between the loading device and the unloading device, the loading device includes a loading conveyor belt, the unloading device includes a unloading conveyor belt, the material tray transfer device is arranged attached to the front end of the unloading conveyor belt, and can transfer the loading material tray on the loading conveyor belt to the unloading conveyor belt.

[0034] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0035] (1) The automatic wiping method of the present invention controls the lens workpiece to maintain a standard production rhythm during the loading, unloading and wiping processes, so that the devices on the loading station, unloading station and wiping station can load, unload and wipe synchronously, thereby greatly improving the wiping efficiency of the lens workpiece; in addition, the present invention performs wet and dry wiping on the lens workpiece multiple times through two or more wiping processes, at least one of which is a wet wiping station, at least one of which is a dry wiping station, and the last wiping station is always a dry wiping station, thereby greatly improving the wiping effect of the automatic wiping method of the present invention on the lens workpiece.

[0036] (2) In the automatic wiping method of the present invention, before the wiping process is performed, it is necessary to detect whether the workpiece adsorption mechanism has adsorbed the lens workpiece. When it is detected and determined that the workpiece adsorption mechanism has not adsorbed the lens workpiece, the lifting and rotating mechanism stops working and waits according to the standard production rhythm. This will neither cause the lifting and rotating mechanism to idle nor directly skip the wiping process to cause the production rhythm of the automatic wiping method to be disrupted, thereby preventing the lens workpiece from being missed and improving the yield of the lens workpiece wiping process.

[0037] (3) The automatic wiping device of the present invention is used to implement the automatic wiping method of the present invention, which includes a loading device, an unloading device, a workpiece transfer device and at least two wiping devices. The workpiece transfer device includes a turntable and a plurality of workpiece adsorption mechanisms arranged on the turntable; the loading device, the unloading device and at least two wiping devices are arranged along the circumference of the turntable. The automatic wiping device of the present invention has a simple structure, high wiping efficiency, and a good wiping effect on the lens workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the automatic wiping system of the present invention;

[0039] Figure 2 It is a structural schematic diagram of the wet wiping device in the present invention;

[0040] Figure 3 It is a structural schematic diagram of the intermediate pressure platform of the present invention;

[0041] Figure 4 It is a schematic diagram of the driving structure of the pressure table of the present invention;

[0042] Figure 5 It is a schematic diagram of the flipping structure of the wet wiping device in the present invention;

[0043] Figure 6 It is a structural schematic diagram of the feeding device in the present invention;

[0044] Figure 7 It is a structural schematic diagram of the feeding gantry mechanism in the present invention;

[0045] Figure 8 It is a structural schematic diagram of the feeding positioning mechanism in the present invention;

[0046] Fig. 9 It is a structural schematic diagram of the feeding device in the present invention;

[0047] Fig.10 It is a schematic structural diagram of the workpiece transfer device in the present invention;

[0048] Fig.11 It is a structural schematic diagram of the workpiece adsorption mechanism in the present invention;

[0049] Fig.12 It is a structural schematic diagram of the jacking mechanism in the present invention. DETAILED DESCRIPTION

[0050] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.

[0051] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0052] Reference Figures 1 to 12 This embodiment provides an automatic wiping system for lens workpieces. Specifically, refer to Figure 1 The automatic wiping system of this embodiment includes a loading device 100, a unloading device 300, a workpiece transfer device 400 and a wiping device. The workpiece transfer device 400 includes a turntable 410, on which a plurality of workpiece adsorption mechanisms 420 are arranged, and at least two wiping devices are arranged. The loading device 100, the unloading device 300 and the at least two wiping devices are arranged along the circumference of the turntable 410.

[0053] Before the automatic wiping system of the present embodiment is used to perform the wiping process, the lens workpiece can be temporarily stored on the loading tray 700. When the automatic wiping system of the present embodiment is used to perform the wiping process, the loading device 100 located at the loading station takes the lens workpiece out of the loading tray 700 and places it on the workpiece adsorption mechanism 420; thereafter, the workpiece adsorption mechanism 420 absorbs the lens workpiece and sequentially reaches the wiping station where each wiping device is located during the rotation of the turntable 410; after each wiping device completes the wiping operation on the lens workpiece, the turntable 410 transfers the workpiece adsorption mechanism 420 carrying the lens workpiece to the unloading station, and the unloading device 300 located at the unloading station takes the lens workpiece out of the workpiece adsorption mechanism 420 and places it on the loading tray 700, completing the wiping process.

[0054] In this embodiment, refer to Figure 6The loading device 100 may include a tray storage 110, a loading conveyor belt 120, a loading gantry mechanism 130 and a loading grasping and releasing mechanism 140. The tray storage 110 is located at the front end of the loading conveyor belt 120, the loading gantry mechanism 130 is attached to and arranged near the middle end of the loading conveyor belt 120, and the loading grasping and releasing mechanism 140 is arranged on the loading gantry mechanism 130; the tray storage 110 stores a plurality of loading trays 700 temporarily storing lens workpieces, and the loading trays 700 can be transferred from the tray storage 110 to the loading conveyor belt 120 for transportation; when the loading trays 700 are transported to the position of the loading gantry mechanism 130 via the loading conveyor belt 120, the loading grasping and releasing mechanism 140 can move relative to the loading gantry mechanism 130 to remove the lens workpieces on the loading trays 700 and place them on the workpiece adsorption mechanism 420.

[0055] Specifically, the tray storage 110 includes a basket column and a storage drive 111. The basket column is provided with a basket slide rail. The basket slide rail is provided with a plurality of tray slots. At least four basket columns constitute a tray basket. The tray slots at corresponding positions on the four basket columns together form a tray position. The loading tray 700 is set in the tray position. The tray storage 110 is located above the loading conveyor belt 120. The storage drive 111 can be a motor, a hydraulic cylinder, or a pneumatic cylinder. The storage drive 111 is used to drive the loading tray 700 to move up and down relative to the loading conveyor belt 120. When the loading trays 700 in the tray storage warehouse 110 need to be transferred to the loading conveyor belt 120, that is, when the loading trays 700 in the tray storage warehouse 110 need to be shipped out, the shipping drive 111 drives all the loading trays 700 to move toward the loading conveyor belt 120 by driving the basket slide rail; when the loading tray 700 closest to the loading conveyor belt 120 contacts the loading conveyor belt 120, the shipping drive 111 stops moving, and the loading tray 700 follows the loading conveyor belt 120 and leaves the tray storage warehouse 110; thereafter, the above process is repeated to realize the sequential shipping of the loading trays 700 in the tray storage warehouse 110.

[0056] Reference Figure 7 The loading gantry mechanism 130 may include a gantry, a gantry slide rail 131 and a gantry driving member 132 arranged on the gantry. The gantry beam 141 of the loading and placing mechanism 140 is slidably arranged on the gantry through the gantry slide rail 131, and is transmission-connected to the gantry driving member 132 through a gantry transmission belt 133. The gantry driving member 132 may be a servo motor or a stepping motor, and is used to drive the gantry beam 141 to move along the gantry slide rail 131 relative to the gantry.

[0057] The loading and placing mechanism 140 includes a gantry beam 141, a gantry platform 142 and a gantry lifting claw 143. The gantry beam 141 is slidably arranged on the gantry frame, the gantry platform 142 is slidably arranged on the gantry beam 141 and driven by the platform driving member to slide relative to the gantry beam 141; the gantry lifting claw 143 is connected to the gantry platform 142 and driven by the lifting claw to rise and fall relative to the gantry platform 142. The gantry slide rail 131 on the gantry frame can be arranged along a first direction, the gantry beam 141 can be arranged along a second direction, and the gantry platform 142 can rise and fall in a third direction.

[0058] It should be noted that the first direction can be the arrangement direction of the loading conveyor belt 120, that is, the conveying direction of the loading tray 700 in the loading device 100; the second direction can be the direction in the horizontal plane of the loading conveyor belt 120, perpendicular to the first direction; the third direction can be the direction perpendicular to the first direction and perpendicular to the second direction, that is, the vertical direction.

[0059] In order to ensure that the lens workpiece can be placed at a correct angle and a fixed position when the loading and placing mechanism 140 places the lens workpiece on the workpiece adsorption mechanism 420, the loading device 100 can also be provided with a loading positioning mechanism 150. Figure 8 The loading and positioning mechanism 150 includes a positioning platform 151 and a positioning slide 153. The positioning platform 151 is provided with a fixed positioning claw 156. A positioning slide 152 is provided on both sides of the fixed positioning claw 156. Both sides of the positioning slide 153 are slidably connected with a positioning slide 152. The positioning slide 153 is provided with a movable positioning claw 155, which is driven by a positioning driving member 154 provided on the positioning platform 151 to slide along the positioning slide 152, thereby driving the movable positioning claw 155 to move relative to the fixed positioning claw 156. The movable positioning claw 155 is provided with a first positioning groove, and the fixed positioning claw 156 is provided with a second positioning groove. In the process of the movable positioning claw 155 moving relative to the fixed positioning claw 156, the first positioning groove and the second positioning groove respectively abut against the two sides of the lens workpiece, thereby completing the positioning.

[0060] In some embodiments, two movable positioning claws 155 can be provided on the positioning platform 151, and the two movable positioning claws 155 are respectively located on the left and right sides of the fixed positioning claw 156. The movable positioning claw 155 has two first positioning grooves on the side facing the fixed positioning claw 156, and a second positioning groove is provided on the fixed positioning claw 156 at a position corresponding to the first positioning groove, so that four fixed positions are formed on the loading positioning mechanism 150 to correspond to the four adsorption seats 421 on the workpiece adsorption mechanism 420.

[0061] In this embodiment, refer to Fig. 9, the unloading device 300 may include a mounting seat 310, an unloading conveyor belt 320, an unloading gantry mechanism 330 and an unloading grasping and releasing mechanism 340. The unloading conveyor belt 320, the unloading gantry mechanism 330 and the unloading grasping and releasing mechanism 340 are arranged on the mounting seat 310; the unloading gantry mechanism 330 is attached to and arranged near the middle end of the unloading conveyor belt 320, and the unloading grasping and releasing mechanism 340 is arranged on the unloading gantry mechanism 330. When the lens workpiece wiping process is completed, the unloading grasping and releasing mechanism 340 can move relative to the unloading gantry mechanism 330 to remove the lens workpiece from the workpiece adsorption mechanism 420 and place it on the loading tray 700, and then the loading tray 700 leaves the automatic wiping system through the unloading conveyor belt 320 and is transported to the downstream process. The unloading conveyor belt 320 of the unloading gantry mechanism 330 can be arranged along the second direction.

[0062] In some embodiments, the structure of the unloading gantry mechanism 330 can be the same as that of the loading gantry mechanism 130, and the structure of the unloading grasping and releasing mechanism 340 can be the same as that of the unloading gantry mechanism 330, so the structures of the unloading gantry mechanism 330 and the unloading grasping and releasing mechanism 340 are not repeated.

[0063] As a further optimization of these embodiments, the unloading device 300 may also be provided with an unloading positioning mechanism. Similar to the loading positioning mechanism 150, the unloading positioning mechanism may also include a positioning platform 151 and a positioning slide 153. The positioning platform 151 is provided with a fixed positioning claw 156. A positioning slide 152 is provided on each of the front and rear sides of the fixed positioning claw 156. Both sides of the positioning slide 153 are slidably connected to a positioning slide 152. The positioning slide 153 is provided with a movable positioning claw 155, which is driven by a positioning driving member 154 provided on the positioning platform 151 to slide along the positioning slide 152, thereby driving the movable positioning claw 155 to move relative to the fixed positioning claw 156. The movable positioning claw 155 is provided with a first positioning groove, and the fixed positioning claw 156 is provided with a second positioning groove. In the process of the movable positioning claw 155 moving relative to the fixed positioning claw 156, the first positioning groove and the second positioning groove respectively abut against the two sides of the lens workpiece, thereby completing the positioning.

[0064] In this embodiment, a tray transfer device 200 is provided between the loading device 100 and the unloading device 300. The loading device 100 includes a loading conveyor belt 120, and the unloading device 300 includes a unloading conveyor belt 320. The tray transfer device 200 is attached to the front end of the unloading conveyor belt 320 and can transfer the loading tray 700 on the loading conveyor belt 120 to the unloading conveyor belt 320. For details, refer to Fig. 9The material tray transfer device 200 includes a transfer gantry mechanism 210 and a transfer mechanism 220. The transfer gantry mechanism 210 includes a transfer gantry frame. The transfer mechanism 220 is arranged on the transfer gantry frame and can slide relative to the transfer gantry frame. The transfer mechanism 220 includes a transfer beam, a transfer platform, and a transfer lifting claw. The transfer beam is slidably arranged on the transfer gantry frame, the transfer platform is slidably arranged on the transfer beam, the transfer lifting claw is rotatably arranged on the transfer platform, and the material tray grabbing claw of the transfer lifting claw is driven by the transfer lifting driving member 431 to move in the third direction.

[0065] When the tray transfer device 200 transfers the loading tray 700, the tray grabbing claw of the transfer lifting claw is driven by the transfer lifting drive 431, descends and grabs the empty loading tray 700 on the loading conveyor belt 120; then, the tray grabbing claw rises, the transfer platform slides relative to the transfer beam, and the transfer beam slides relative to the transfer gantry, so that the tray grabbing claw is located above the unloading conveyor belt 320. During this process, the transfer lifting claw rotates 90° relative to the transfer platform; then, the tray grabbing claw descends and places the empty loading tray 700 on the unloading conveyor belt 320, completing the transfer and transfer of the loading tray 700.

[0066] In this embodiment, refer to Fig.10 The workpiece transfer device 400 includes a turntable 410, a turntable driving member 450 and a plurality of workpiece adsorption mechanisms 420; the turntable 410 is provided with mounting holes 411 having a number not less than that of the workpiece adsorption mechanisms 420, the mounting holes 411 having a step structure, the workpiece adsorption mechanisms 420 being removably arranged in the mounting holes 411, and when the workpiece adsorption mechanisms 420 are arranged in the mounting holes 411, they can rotate with the turntable 410; the output wheel 451 of the turntable driving member 450 is connected to the turntable 410 through the turntable transmission member 452, and is used to drive the turntable 410 to rotate. The plurality of workpiece adsorption mechanisms 420 are arranged along the circumference of the turntable 410, and the distances between the workpiece adsorption mechanisms 420 and the workpiece adsorption mechanisms 420 are equal.

[0067] The workpiece transfer device 400 is provided with a lifting and rotating mechanism 430 at a location corresponding to the wiping station. The lifting and rotating mechanism 430 is used to lift the workpiece adsorption mechanism 420 from the turntable 410 and drive the lens workpiece on the workpiece adsorption mechanism 420 to rotate relative to the wiping cloth 513. Fig.11The lifting and rotating mechanism 430 includes a lifting drive 431, a first base 432, a rotating drive 433, a rotating transmission shaft 434, and a second base 436. The second base 436 is mounted on the first base 432, the rotating drive 433 and the rotating transmission shaft 434 are arranged on the second base 436, the moving end of the lifting drive 431 is connected to the lower side of the first base 432 by transmission, and the lifting drive 431 is used to lift and lower the second base 436; the rotating drive 433 is connected to the rotating transmission shaft 434 by transmission through the rotating transmission belt 435, and the rotating transmission shaft 434 can be connected to the workpiece adsorption mechanism 420 by transmission, so as to realize the transmission cooperation between the rotating drive 433 and the workpiece adsorption mechanism 420.

[0068] Continue to refer to Fig.11 The workpiece adsorption mechanism 420 may include an adsorption seat 421, a pivot seat 422 and a rotating platform 423. The pivot seat 422 is arranged on the adsorption seat 421, and the rotating platform 423 is rotatably connected to the adsorption seat 421 through the pivot seat 422. A rotating shaft 426 is arranged at the lower end of the rotating platform 423, and the rotating shaft 426 passes through the adsorption seat 421; an adsorption plate 424 is arranged on the upper end surface of the rotating platform 423, and the adsorption plate 424 forms a negative pressure environment on the surface of the lens workpiece through a vacuum generating assembly 425 arranged on the adsorption seat 421, thereby achieving adsorption of the lens workpiece.

[0069] When the workpiece adsorption mechanism 420 rotates to the wiping station along with the turntable 410, the turntable 410 stops rotating, and the moving end of the lifting drive member 431 extends out, thereby lifting the first base 432; then, the rotating transmission shaft 434 is connected to the workpiece adsorption mechanism 420, specifically, connected to the rotating shaft 426, and is in a transmission matching state; then, the moving end of the lifting drive member 431 continues to extend out to lift the workpiece adsorption mechanism 420 from the turntable 410; then, the rotating drive member 433 is actuated, and the rotating shaft 426 is driven to rotate by the rotating transmission shaft 434, thereby driving the rotating table 423 to rotate relative to the adsorption seat 421, and finally controlling the lens workpiece adsorbed on the adsorption plate 424 to rotate relative to the wiping cloth 513, thereby completing the wiping process. After the wiping process is completed, the rotating drive member 433 stops moving, the moving end of the lifting drive member 431 retracts, and the first base 432 falls, so that the workpiece adsorption mechanism 420 is placed back into the mounting hole 411; thereafter, the moving end of the lifting drive member 431 continues to retract, and the rotating transmission shaft 434 is disconnected and disengaged from the rotating shaft 426, and the workpiece adsorption mechanism 420 can continue to rotate with the turntable 410.

[0070] As a further optimization, four rotating tables 423 may be provided in the workpiece adsorption mechanism 420, and the four rotating tables 423 are rotatably provided on the adsorption seat 421 through the pivot seat 422. To cooperate with the workpiece adsorption mechanism 420, the lifting and rotating mechanism 430 is also provided with four rotating transmission shafts 434, and the four rotating transmission shafts 434 are simultaneously connected to the rotating driving member 433 through the rotating transmission belt 435, thereby realizing synchronous rotation.

[0071] As a further optimization, the lifting and rotating mechanism 430 can also include a third base 437 and a fourth base 438, wherein the fourth base 438 is connected to the upper section of the rotating transmission shaft 434, and when the rotating transmission shaft 434 is connected to the rotating shaft 426, the adsorption seat 421 of the support column workpiece adsorption mechanism 420 improves the structural stability; the third base 437 is located between the second base 436 and the fourth base 438, and the third base 437 is connected to the second base 436, and the third base 437 is used to support the rotating transmission shaft 434 to prevent the rotating transmission shaft 434 from being damaged due to excessive length.

[0072] The workpiece transfer device 400 is provided with a lifting mechanism 440 at the position corresponding to the loading station and the unloading station. The lifting mechanism 440 is used to lift the workpiece adsorption mechanism 420 from the turntable 410. Fig.12 The lifting mechanism 440 includes a lifting drive 441, a lifting platform 442 and a lifting interface 443. The lifting interfaces 443 are arranged on the lifting platform 442, and the number of the lifting interfaces 443 is the same as the number of the rotating platforms 423 in the workpiece adsorption mechanism 420; the moving end of the lifting drive 441 is connected to the lifting platform 442 by transmission, and the lifting drive 441 can lift the lifting platform 442 and connect the lifting interface 443 to the rotating shaft 426. When the moving end of the lifting drive 441 continues to extend, the lifting interface 443 cooperates with the rotating shaft 426, and the workpiece adsorption mechanism 420 can be lifted from the turntable 410, thereby facilitating the loading and unloading operations.

[0073] In this embodiment, the wiping device can be divided into a dry wiping device 600 and a wet wiping device 500. The difference between the dry wiping device 600 and the wet wiping device 500 is only whether a cleaning liquid is sprayed onto the wiping cloth 513 during the wiping process. Figure 2 In this embodiment, the structure of the wiping device is introduced by taking the wet wiping device 500 as an example.

[0074] Specifically, refer to Figure 2The wet wiping device 500 includes a turning table 502, and a first reel 521, a second reel 522, and a plurality of third reels 523 disposed on the turning table 502. The wiping cloth 513 can be wound on the first reel 521 to form a clean cloth roll 511, and the plurality of third reels 523 are disposed between the first reel 521 and the second reel 522. The wiping cloth 513 is drawn out from the clean cloth roll 511 on the first reel 521, guided by the plurality of third reels, and finally wound on the second reel 522 to form a dirty cloth roll 512. The wiping cloth 513 is between two of the plurality of third reels 523 to form a wiping position.

[0075] As one embodiment, the second reel 522 of the wet wiping device 500 is an active reel, which drives the dirty cloth roll 512 to rotate, so as to remove the wiping cloth 513 from the clean cloth roll 511 and use it in the wiping process. Figure 5 The turning table 502 may be provided with a first axis frame 531, a second axis frame 532 and a reel driving member 533. The first reel 521 is rotatably connected to the turning table 502 via the first axis frame 531, the second reel 522 is rotatably connected to the turning table 502 via the second axis frame 532, and the reel driving member 533 is drivingly connected to the second reel 522 via a reel driving assembly 534. During the wiping process, if the wiping cloth 513 at the wiping position needs to be replaced, the reel driving member 533 can drive the second reel 522 to rotate to complete the replacement of the wiping cloth 513.

[0076] In addition, refer to Figure 3 A pressing mechanism 560 may also be provided on the turning table 502 of the wet wiping device 500. The pressing table 561 of the pressing mechanism 560 is slidably provided on the turning table 502. Before wiping, the pressing table 561 may move relative to the workpiece adsorption mechanism 420, and press the wiping cloth 513 onto the lens workpiece, thereby increasing the contact area between the wiping cloth 513 and the lens workpiece, thereby improving the wiping effect. Specifically, a plurality of convex strips 562 are provided on the pressing table 561, and a notch 563 is formed between the convex strips 562 and the convex strips 562. The number of notches 563 on the pressing table 561 is the same as the number of the rotating table 423 on the workpiece adsorption mechanism 420, and the position of the notch 563 may correspond to the position of the rotating table 423. Therefore, when the pressing table 561 is pressed down, the lens workpiece is exactly located in the notch 563, and the wiping cloth 513 at the position of the notch 563 is lifted up, thereby increasing the contact area between the lens workpiece and the wiping cloth 513.

[0077] As an embodiment of the driving method of the press table 561, refer to Figure 4A press table driving component 541 and a press table slide rail 543 may be provided on the back of the flip table 502, and a press table slider 542 may be provided on the press table. The press table slider 542 is slidably connected to the press table slide rail 543, and the press table is driven to slide relative to the flip table 502 by driving the press table slider 542 to slide on the press table slide rail 543 through the press table driving component 541.

[0078] Reference Figure 3 The wet wiping device 500 also includes a plurality of nozzles 564. The number of the nozzles 564 may be the same as the number of the rotating tables 423 on the workpiece adsorption mechanism 420. The positions of the nozzles 564 may correspond to the positions of the rotating tables 423. The nozzles 564 are located above the press table, and the nozzles 564 are arranged toward the wiping cloth 513 for spraying cleaning liquid onto the wiping cloth 513.

[0079] As a further optimization of the wet wiping device 500, refer to Figure 4 The wet wiping device 500 may further include a wiping base 501, and a flip table 502 may be rotatably connected to the wiping base 501 through a flip shaft 503; a flip driving member 504 may be hinged on the wiping base 501, and a moving end of the flip driving member 504 may be hinged to the flip table 502 through a hinge seat 505. When the wiping cloth 513 that needs to replace the clean cloth roll 511 is completely drawn out, that is, when the clean cloth roll 511 needs to be replaced, the flip driving member 504 may be used to drive the flip table 502 to flip relative to the wiping base 501, so that the flip table 502 is placed horizontally, thereby facilitating the replacement of the clean cloth roll 511; after the clean cloth roll 511 is replaced, the flip driving member 504 may be used to drive the flip table 502 to flip relative to the wiping base 501, so that the flip table 502 is placed vertically.

[0080] As a further optimization of the wet wiping device 500, the wet wiping device 500 may further include a tensioning mechanism 550, referring to Figure 2 The tensioning mechanism 550 is used to tension the wiping cloth, thereby improving the wiping effect of the wiping cloth on the lens workpiece and facilitating the winding of the wiping cloth from the first reel to the second reel. Specifically, the tensioning mechanism 550 includes a tensioning frame and a tensioning shaft slidably connected to the tensioning frame. The tensioning shaft is driven by a tensioning driving member disposed on the tensioning frame to move relative to the tensioning frame, thereby pressing against the wiping cloth and tensioning the wiping cloth.

[0081] This embodiment also provides an automatic wiping method for a lens workpiece, which can be implemented by the automatic wiping system of this embodiment, or by other wiping systems in the related field. Specifically, the automatic wiping method of this embodiment includes the following steps:

[0082] Step 1: At the loading position, a plurality of lens workpieces are transferred by the loading device 100 to the turntable 410 of the workpiece transfer device 400 and are sucked by the workpiece suction mechanism 420 on the turntable 410; at least two wiping stations are provided on the turntable 410. Step 1 is completed within 12 unit times.

[0083] Among them, in step 1, the moving end of the lifting mechanism 440 extends out, and after starting transmission cooperation with the workpiece adsorption mechanism 420, the workpiece adsorption mechanism 420 can be lifted from the turntable 410; after the workpiece adsorption mechanism 420 absorbs the lens workpiece, the moving end of the lifting mechanism 440 can be retracted to place the workpiece adsorption mechanism 420 on the turntable 410; thereafter, the moving end of the lifting mechanism 440 can continue to retract until the lifting mechanism 440 and the workpiece adsorption mechanism 420 are out of transmission cooperation.

[0084] Step 2: within 3 unit times, the turntable 410 rotates by a first angle so that the workpiece adsorption mechanism 420 with the lens workpiece adsorbed thereon reaches one of the at least two wiping stations.

[0085] Before executing step 2, the reel driving member 533 may be operated for 2 time units, thereby driving the second reel 522 to rotate.

[0086] In step 2, the lifting and rotating mechanism 430 and the workpiece adsorption mechanism 420 are disengaged from the transmission cooperation, the turntable 410 can rotate relative to the lifting and rotating mechanism 430 , and the workpiece adsorption mechanism 420 can rotate synchronously with the turntable 410 .

[0087] Step 3. Within 1 unit time, the workpiece adsorption mechanism 420 is driven by the lifting and rotating mechanism 430 to be lifted from the transfer height to the wiping height, and the lens workpiece is made close to the wiping cloth 513 of the wiping device; within 11 unit times, the lifting and rotating mechanism 430 drives the lens workpiece to rotate relative to the wiping cloth 513; within 1 unit time, the workpiece adsorption mechanism 420 is driven by the lifting and rotating mechanism 430 to fall from the wiping height to the transfer height.

[0088] Step 3 includes:

[0089] S31, within one unit of time, the workpiece adsorption mechanism 420 is driven by the lifting and rotating mechanism 430 to be lifted from the transport height to the wiping height, and the lens workpiece is brought into close contact with the wiping cloth 513 of the wiping device; at the same time, the pressing platform descends and presses the wiping cloth 513 from above;

[0090] S32, within 11 unit times, the lifting and rotating mechanism 430 drives the lens workpiece to rotate relative to the wiping cloth 513; at the same time, the nozzle 564 sprays the cleaning liquid onto the wiping cloth 513;

[0091] S33. Within one unit of time, the workpiece adsorption mechanism 420 is driven by the lifting and rotating mechanism 430 to fall from the wiping height to the transfer height; at the same time, the pressing table rises and breaks contact with the wiping cloth 513.

[0092] In step 3, the lifting drive 431 can be used to drive the first base 432 to rise and fall, and drive the lens workpiece to rise / fall relative to the wiping cloth 513 through the rotating transmission shaft 434; the rotating drive 433 can cooperate with the workpiece adsorption mechanism 420 through the rotating transmission shaft 434 to drive the lens workpiece to rotate relative to the wiping cloth 513.

[0093] Step 4: Repeat steps 2 and 3 until the lens workpiece is completely wiped by the wiping devices at all wiping stations.

[0094] Among the at least two wiping stations, at least one wiping station is set as a wet wiping station with a wet wiping device 500, and at least one wiping station is set as a dry wiping station with a dry wiping device 600; when step 4 is completed, the wiping station where the lens workpiece is located is always a dry wiping station.

[0095] Step 5: the turntable 410 rotates to a first angle, the workpiece suction mechanism 420 with the lens workpieces sucked therein arrives at the unloading position, and a plurality of lens workpieces are transferred to the loading tray 700 by the unloading device 300. Step 5 is completed within 12 unit times.

[0096] Among them, in step 5, the moving end of the lifting mechanism 440 extends out, and after starting transmission cooperation with the workpiece adsorption mechanism 420, the workpiece adsorption mechanism 420 can be lifted from the turntable 410; after the lens workpiece is removed from the workpiece adsorption mechanism 420, the moving end of the lifting mechanism 440 can be retracted to place the workpiece adsorption mechanism 420 on the turntable 410; thereafter, the moving end of the lifting mechanism 440 can continue to retract until the lifting mechanism 440 and the workpiece adsorption mechanism 420 are out of transmission cooperation.

[0097] The automatic wiping method of the present embodiment controls the lens workpiece to maintain a standard production rhythm during the loading, unloading and wiping processes, so that the devices on the loading station, unloading station and wiping station can load, unload and wipe synchronously, thereby greatly improving the wiping efficiency of the lens workpiece; in addition, the present embodiment uses a method in which more than two wiping processes, at least one of which is a wet wiping station, at least one of which is a dry wiping station, and the last wiping station is always a dry wiping station, to perform wet and dry wiping on the lens workpiece multiple times, thereby greatly improving the wiping effect of the automatic wiping method of the present embodiment on the lens workpiece.

[0098] As a further optimization of the automatic wiping method of this embodiment, before executing step 3, it is detected and determined whether the workpiece adsorption mechanism 420 adsorbs the lens workpiece;

[0099] If the workpiece adsorption mechanism 420 adsorbs the lens workpiece, execute step 3;

[0100] If the workpiece adsorption mechanism 420 does not adsorb the lens workpiece, the lifting and rotating mechanism 430 stops working and waits for 13 time units before executing step 4.

[0101] Therefore, in the automatic wiping method of the present embodiment, before the wiping process is performed, it is necessary to detect whether the workpiece adsorption mechanism 420 has adsorbed the lens workpiece. When it is detected and determined that the workpiece adsorption mechanism 420 has not adsorbed the lens workpiece, the lifting and rotating mechanism 430 stops working and waits according to the standard production rhythm. This will neither cause the lifting and rotating mechanism 430 to idle, nor directly skip the wiping process to cause the production rhythm of the automatic wiping method to be disrupted, thereby preventing the lens workpiece from being missed, thereby improving the yield of the lens workpiece wiping process.

[0102] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. An automatic wiping method for a lens workpiece, characterized in that: The following steps are included: Step 1: At the loading position, a plurality of lens workpieces are transferred by a loading device to a turntable of a workpiece transfer device and are sucked by a workpiece adsorption mechanism on the turntable; the turntable is provided with at least two wiping stations; Step 2, within 3 unit times, the turntable rotates a first angle so that the workpiece adsorption mechanism with the lens workpiece adsorbed thereon reaches one of the at least two wiping stations; Step 3: Within 1 unit time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be lifted from the transport height to the wiping height, and the lens workpiece is closely attached to the wiping cloth of the wiping device; within 11 unit times, the lifting and rotating mechanism drives the lens workpiece to rotate relative to the wiping cloth; within 1 unit time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be dropped from the wiping height to the transport height; Step 4, repeating steps 2 and 3 until the lens workpiece is completely wiped by the wiping devices at all wiping stations; Step 5, the turntable rotates to a first angle, the workpiece adsorption mechanism with the lens workpiece adsorbed arrives at the unloading position, and a plurality of lens workpieces are transferred to the loading tray by the unloading device; Wherein, step 1 is completed within 12 unit time, and step 5 is completed within 12 unit time; Among the at least two wiping stations, at least one wiping station is configured as a wet wiping station having a wet wiping device, and at least one wiping station is configured as a dry wiping station having a dry wiping device; when completing step 4, the wiping station where the lens workpiece is located is always a dry wiping station; Before executing step 3, detecting and determining whether the workpiece adsorption mechanism adsorbs the lens workpiece; If the workpiece adsorption mechanism adsorbs the lens workpiece, executing step 3; If the workpiece adsorption mechanism does not adsorb the lens workpiece, the lifting and rotating mechanism stops working, and after waiting for 13 unit time, step 4 is executed; The wet wiping device comprises a press platform, on which a plurality of notches are formed, the positions of the notches correspond to the positions of the lens workpieces adsorbed by the workpiece adsorption mechanism, and a nozzle is disposed above the notches; The step 3 comprises: S31, within one unit of time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to be lifted from the transport height to the wiping height, and the lens workpiece is brought into close contact with the wiping cloth of the wiping device; at the same time, the pressing platform descends and presses the wiping cloth from above; S32, within 11 unit times, the lifting and rotating mechanism drives the lens workpiece to rotate relative to the wiping cloth; at the same time, the nozzle sprays cleaning liquid onto the wiping cloth; S33, within one unit of time, the workpiece adsorption mechanism is driven by the lifting and rotating mechanism to fall from the wiping height to the transfer height; at the same time, the pressing table rises and breaks contact with the wiping cloth; The wet wiping device further comprises a first reel, a second reel and a plurality of third reels, the wiping cloth is drawn out from the first reel, guided by the plurality of third reels, and then wound on the second reel; the second reel is drivingly connected to the reel driving member; Before executing the step 2, the reel driving member operates for 2 time units, thereby driving the second reel to rotate; The turntable is provided with a mounting hole, the mounting hole having a step structure, and the workpiece adsorption mechanism is arranged in the mounting hole through the step structure; In the step 2, the lifting and rotating mechanism is disengaged from the transmission cooperation with the workpiece adsorption mechanism, the turntable rotates relative to the lifting and rotating mechanism, and the workpiece adsorption mechanism rotates synchronously with the turntable; The lifting and rotating mechanism comprises a lifting driving member, a first base, a rotating driving member, a rotating transmission shaft, and a second base, wherein the second base is mounted on the first base, and the rotating driving member and the rotating transmission shaft are arranged on the second base; In step 3, the lifting drive member is used to drive the first base to lift and lower, and drive the lens workpiece to lift / drop relative to the wiping cloth through the rotating transmission shaft; the rotating drive member cooperates with the workpiece adsorption mechanism through the rotating transmission shaft to drive the lens workpiece to rotate relative to the wiping cloth; The turntable is provided with a lifting mechanism at the loading position; In step 1, the moving end of the lifting mechanism extends out, starts transmission cooperation with the workpiece adsorption mechanism, and then lifts the workpiece adsorption mechanism from the turntable; after the workpiece adsorption mechanism absorbs the lens workpiece, the moving end of the lifting mechanism retracts so that the workpiece adsorption mechanism is placed on the turntable; thereafter, the moving end of the lifting mechanism continues to retract until the lifting mechanism and the workpiece adsorption mechanism are out of transmission cooperation.

2. The automatic wiping method for a lens workpiece according to claim 1, characterized in that: The turntable is provided with a lifting mechanism at the unloading position; In step 5, the moving end of the lifting mechanism extends out, starts transmission cooperation with the workpiece adsorption mechanism, and then lifts the workpiece adsorption mechanism from the turntable; after the lens workpiece is removed from the workpiece adsorption mechanism, the moving end of the lifting mechanism retracts to place the workpiece adsorption mechanism on the turntable; thereafter, the moving end of the lifting mechanism continues to retract until the lifting mechanism and the workpiece adsorption mechanism are out of transmission cooperation.

3. An automatic wiping system for implementing the automatic wiping method according to any one of claims 1 or 2, characterized in that: It includes a loading device, a unloading device, a workpiece transfer device and at least two wiping devices. The workpiece transfer device includes a turntable and a plurality of workpiece adsorption mechanisms arranged on the turntable. The loading device, the unloading device and the at least two wiping devices are arranged along the circumference of the turntable.

4. An automatic wiping system according to claim 3, characterized in that: A material tray transfer device is arranged between the loading device and the unloading device, the loading device includes a loading conveyor belt, the unloading device includes a unloading conveyor belt, the material tray transfer device is arranged on the front end of the unloading conveyor belt, and can transfer the loading material tray on the loading conveyor belt to the unloading conveyor belt.

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