TW202235203A - Lens gluing system and lens gluing method having effect of effectively improving quality consistency and yield rate - Google Patents

Abstract

A lens gluing system and lens gluing method are provided. The lens gluing system comprises a glue supply device, a sliding table, a lifting and descending device, and a transportation device. The lifting and descending device can be controlled to vertically lift and descend at a moving region between the glue supply device and the sliding table. The transportation device is connected to the lifting and descending device. The transportation device is used for picking up the lens placed on the sliding table and driving the picked lens to overturn. Moreover, the moving region defined to the glue supply device from the sliding table sequentially comprises a first segment, a second segment, and a third segment. The lifting and descending device drives the transportation device to move in the first segment, the second segment, and the third segment at a first velocity, a second velocity, and a third velocity, wherein the second velocity is greater than the first velocity and the third velocity.

Description

Lens bonding system and lens bonding method

The present invention is related to lens gluing technology; in particular, it refers to a lens gluing system and a lens gluing method that can improve the quality and yield of lens gluing.

It is known that in order to provide a variety of image capture, observation or display equipment and other different equipment applications, the demand for optical lenses is increasing day by day, and in order to meet the needs of various uses, the manufacturing process of some optical lenses includes two lenses The process of gluing. The conventional lens gluing process is to glue the surface of the lens to be glued, and then manually superimpose the two lenses together to combine the two lenses.

However, due to the large market demand at present, performing the above-mentioned process manually not only needs to bear high labor costs, but also cannot effectively improve production efficiency. The technique is consistent every time the lenses are stacked, so it is easy to have problems with inconsistent quality of the produced products or failure to improve the yield rate.

For example, it is difficult for the operator to move the lenses at the same rate of movement each time the lenses are stacked to engage the two lenses, and it is also difficult for the operator to ensure that the two lenses are aligned each time the lenses are stacked. Combining with a specific position, there will be a positional deviation, which will inevitably have a negative impact on the yield and quality of the product. Therefore, conventional lens bonding systems and lens bonding methods still need to be improved.

In view of this, the object of the present invention is to provide a lens bonding system and a lens bonding method, which can effectively improve the yield and quality of the bonded lenses.

In order to achieve the above object, a lens gluing system provided by the present invention includes a glue supply device, a slide table, a lifting device and a conveying device, the glue supply device is used to provide the glue required for lens gluing; the slide table It is arranged under the glue supply device for placing the lenses to be glued, and the slide table can be controlled to slide laterally; the lifting device can be controlled to vertically lift in a moving area between the glue supply device and the slide table; The conveying device is connected with the lifting device, and the conveying device is used to pick up the lens placed on the sliding table and can drive the picked up lens to turn over; wherein, defining the moving area from the sliding table to the glue supplying device includes sequentially A first section, a second section and a third section, the lifting device drives the conveying device at a first speed in the first section, the second section and the third section respectively , a second speed and a third speed to move, wherein the second speed is greater than the first speed and the third speed.

The present invention also provides a lens gluing method using the above-mentioned lens gluing system, wherein the slide table includes a first bearing seat and a second bearing seat adjacently arranged to carry a first lens and a first lens respectively. Two lenses, the first lens has a surface to be glued, and the sliding table can be controlled to slide laterally between a first position and a second position. The lens bonding method includes the following steps: controlling the sliding table to move to the First position; control the lifting device to drive the conveying device to move close to the position of the first lens on the first carrier at the first speed; control the conveying device to pick up the first lens; control the lifting device to move with the first lens The first speed drives the conveying device to move up or down in the first section; controls the lifting device to drive the conveying device to move up or down in the second section at the second speed; controls the lifting device to move up or down in the second section; The third speed drives the conveying device to move up or down in the third section; controls the glue supply device to apply glue on the surface to be glued of the first lens in the third section; controls the conveying device Drive the first lens to turn over at the junction of the first section and the second section or the junction of the second section and the third section; control the sliding table to move to the second position; control the transport device In the first section, the surface to be glued of the first lens is superimposed on the second lens carried by the second carrier, so that the first lens and the second lens are glued; The first section releases the first lens.

The effect of the present invention is that the lens gluing system can automatically complete the action of dispensing glue and superimposing two lenses, and through the lens gluing system of the present invention, the conveying device can drive the picked lens to the first section , The second section and the third section move at a specific speed, thereby improving the quality inconsistency and the inability to improve the yield caused by manual lamination of lenses, compared with the conventional manual lamination of lenses In this way, the lens bonding system of the present invention has the effect of effectively improving product quality consistency and yield.

Furthermore, through the design of the second speed greater than the first speed and the third speed of the present invention, it is possible to maintain a relatively low speed when the lifting device drives the conveying device to move in the first section or the third section. Move at a slow speed to achieve the effect of accurately performing finer actions such as picking up lenses, stacking lenses, or dispensing glue, not only to avoid the lens slipping or The problem of collision with other components can also avoid air bubbles between the rubber material and the lens, which will affect the product yield. Finally, through the design of the second speed greater than the first speed and the third speed of the present invention, the lifting device can drive the conveying device to maintain a faster speed in the second section, so as not to affect the On the premise that the conveying device operates in the first section or the third section, the overall processing time is shortened to achieve the effect of improving production efficiency.

In order to illustrate the present invention more clearly, preferred embodiments are given and detailed descriptions are given below in conjunction with drawings. Please refer to Fig. 1 to Fig. 6, which is a lens gluing system 1 of a preferred embodiment of the present invention, including a frame 10, a glue supply device 20, a slide table 30, a lifting device 40 and a transport device 50 .

The glue supply device 20 is arranged on the frame to provide the glue required for lens bonding, and the glue can be UV glue.

The slide table 30 is arranged under the glue supply device 20 for placing the lenses to be glued. The frame 10 includes a base 12 and a transverse slide rail 14. The transverse slide rail 14 is arranged on the frame 10 and the slide The table 30 is arranged in cooperation with the transverse slide rail 14, whereby, as shown in Figure 2 and Figure 5, the slide table 30 can be controlled on the transverse slide rail 14 in a first position P1 and a second Transverse sliding is performed between the positions P2, and the sliding position of the slide table 30 is limited by the limiting members 141 respectively arranged at both ends of the transverse slide rail 14 to achieve the effect of precise positioning. Wherein, the slide table 30 includes a first carrying seat 32 and a second carrying seat 34 which are adjacently arranged to carry a lens respectively. In this embodiment, the first carrying seat 32 and the second carrying seat The lenses carried by 34 are a first lens L1 and a second lens L2, wherein the first lens L1 and the second lens L2 can be a single lens or a semi-finished lens made of multiple lenses glued together. The lens L1 and the second lens L2 respectively have a surface to be glued for contact with the glue provided by the glue supply device, and the surface to be glued of the first lens L1 faces downwards, that is, faces the first carrier 32 way, and the second lens L2 is set facing upwards, that is, facing away from the second bearing seat. In this embodiment, the first lens L1 and the second lens L2 are lifted from a The feeding area W is transported to this slide table 30 .

The lifting device 40 can be controlled to drive the conveying device 50 to vertically lift in a moving area between the glue supply device 20 and the slide table 30 along a longitudinal axis A direction; the conveying device 50 is connected with the lifting device 40, the The conveying device 50 is used to pick up the lens placed on the sliding table 30 and can drive the picked up lens to turn over, wherein, defining the moving area from the sliding table 30 to the glue supplying device 20 sequentially includes a first section Z1 , a second section Z2 and a third section Z3, the lifting device 40 drives the conveying device 50 in the first section Z1, the second section Z2 and the third section Z3 respectively with a first section A speed, a second speed and a third speed vertically ascend and descend, wherein the second speed is greater than the first speed and the third speed. That is to say, the conveying device 50 can drive the lens picked up to move at a specific speed in the first section Z1, the second section Z2 and the third section Z3 respectively, and the lifting device 40 drives the lens The conveying device 50 moves at a slower speed when moving in the first section Z1 and the third section Z3, and moves at a faster speed in the second section Z2. In this embodiment The conveying device 50 picks up the first lens L1 placed on the sliding table 30 and can drive the picked up first lens L1 to turn over.

It is worth mentioning that the user can set the first speed to be equal to, greater than, or lower than the third speed according to the user's needs, so that the transport device can drive the picked-up lens to the first section. Z1, the second section Z2 and the third section Z3 move at a specific speed respectively, and the lifting device 40 drives the conveying device 50 to move in the first section Z1 or the third section Z3 The purpose of moving at a slower speed and moving at a faster speed in the second zone Z2.

In this embodiment, the frame 10 includes a longitudinal slide rail 16, the elevating device 40 is arranged on the longitudinal slide rail 16 and can drive the conveying device 50 to slide on the longitudinal slide rail 16 along the direction of the longitudinal axis A The conveying device 50 includes a gripper 52 for gripping the first lens L1 placed on the first carrier 32 and driving the first lens L1 to turn over and move along the longitudinal axis A. In other embodiments, it is not excluded that the conveying device 50 includes other mechanisms capable of picking up lenses such as vacuum chucks, and is not limited to the grippers in this embodiment.

Please cooperate with Fig. 7 and Fig. 8, which is a flow chart of the lens gluing method used in the lens gluing system of the above-mentioned preferred embodiment. The lens gluing method includes the following steps:

Step S101 , controlling the sliding platform 30 to move to the first position P1 . By controlling the sliding table 30 to move to the first position P1, the first lens L1 placed on the first carrying seat 32 is positioned below the conveying device 50, wherein the sliding table 30 is located at the In the first position P1, the longitudinal axis A passes through the first bearing seat 32, thereby shortening the distance between the delivery device 50 and the first lens L1 and facilitating the delivery device 50 to pick and place it on the first bearing seat. 32 on the first lens L1.

Step S102 , controlling the lifting device 40 to drive the conveying device 50 to move to a position close to the first lens L1 on the first carrier 32 at the first speed in the first section Z1 . In this embodiment, as shown in FIG. 2, the initial position P0 of the lifting device 40 is located in the second zone Z2. Therefore, before the step S101, a step S102' is performed to control the lifting device 40 drives the conveying device 50 to move to the connection between the second section Z2 and the first section Z1 at the second speed. In practice, if the initial position P0 of the lifting device 40 is set in the first zone Z1, step S102' can be omitted.

Step S103, controlling the conveying device 50 to pick up the first lens L1. That is to say, in step S102, after controlling the lifting device 40 to drive the conveying device 50 to move to a position close to the first lens L1 and capable of picking up the first lens at the first speed (with reference to FIG. 3 ), control the lifting The device 40 stops moving and controls the conveying device 50 to pick up the first lens L1 placed on the first carrier 32 in the first section. Thereby, the elevating device 40 can drive the conveying device 50 to move at a slower speed in the first section to accurately perform the action of picking up the first lens, so as to avoid the excessive speed of the conveying device 50 However, the lens slips or collides with other components.

Step S104 , controlling the lifting device 40 to drive the conveying device 50 to move upward in the first section Z1 at the first speed. In this embodiment, the lifting device 40 drives the conveying device 50 at the first speed to move up the first section Z1 to the connection between the first section Z1 and the second section Z2 and then stops and the conveying The device 50 turns over the first lens L1, so that the surface to be glued of the first lens L1 faces the glue supply device 20, so as to facilitate subsequent dispensing operations. It is to be noted that the first section Z1 and the second The junction of the section Z2 needs to be set at a safe distance from the first bearing seat 32 to prevent the transport device 50 from colliding with the first bearing seat 32 when turning over the first lens.

Step S105 , controlling the lifting device 40 to drive the conveying device 50 to move upward in the second section Z2 at the second speed. In this embodiment, the lifting device 40 drives the conveying device 50 at the second speed to move upwards from the connection between the first section Z1 and the second section Z2 to the second section Z2 and the second section Z2 at the second speed. The third section Z3 stops after the junction. Thereby, the lifting device can drive the conveying device 50 to move at a faster speed in the second section Z2, so as to shorten the overall processing time and achieve the effect of improving production efficiency.

Step S106 , controlling the lifting device 40 to drive the conveying device 50 to move upward in the third section Z3 at the third speed. In this embodiment, the lifting device 40 drives the conveying device 50 to move upwards from the connection between the second section Z2 and the third section Z3 to a position close to the glue supplying device 20 at the third speed.

Step S107, controlling the glue supply device 20 to dispense glue on the surface to be glued of the first lens L1 in the third zone Z3. In this embodiment, the lifting device 40 drives the first lens L1 picked up by the conveying device 50 to move in the third section Z3 to a position where it contacts the glue provided by the glue supply device 20 and then stops moving (cooperate with 4 ), so as to prevent the first lens L1 from colliding with the glue supply device 20 or producing a large number of air bubbles between the first lens L1 and the glue material due to the first lens L1 moving too fast, thereby affecting the product yield.

Step S108 , controlling the lifting device 40 to drive the conveying device 50 to move downward in the third section Z3 at the third speed. Thereby, the first lens L1 that has finished dispensing is driven away from the glue supply device 20 at a slower speed and moves down to the junction of the third section Z3 and the second section Z2 and then stops.

Step S109 , controlling the lifting device 40 to drive the conveying device 50 to move downward in the second section Z2 at the second speed. In this embodiment, the lifting device 40 drives the conveying device 50 to move downward from the connection between the third section Z3 and the second section Z2 to the second section Z2 and the first section Z2 at the second speed. Stop after the junction of the section Z1 and the conveying device 50 turns over the first lens L1 so that the surface to be glued of the first lens L1 faces away from the glue supply device 20 .

Step S110, controlling the slide table 30 to move to the second position P2. As shown in FIG. 5 , by controlling the sliding table 30 to move to the second position P2, the second lens L2 placed on the second carrier 34 is positioned on the transport device 50 , that is, the first lens L1 The lower position, wherein, when the slide table 30 is in the second position P2, the longitudinal axis A passes through the second bearing seat 34, thereby shortening the distance between the transport device 50 and the second lens L2 and facilitating The conveying device 50 accurately superimposes the first lens L1 on the second lens L2 carried by the second carrier 34 . It should be further noted that, in other embodiments, step S110 may be performed between step S105 and step S109, and is not limited to this embodiment being performed after step S109.

Step S111 , controlling the lifting device 40 to drive the conveying device 50 to move downward in the first section Z1 at the first speed. The lifting device 40 drives the conveying device 50 to move downward from the connection between the second section Z2 and the first section Z1 at the first speed to a position close to the second lens L2 carried by the second carrying seat 34 .

Step S112, control the conveying device 50 to superimpose the surface to be glued on the first lens L1 that has been glued on the second lens L2 carried by the second carrier 34 in the first section Z1 (see FIG. 6 ), so that the first lens L1 is cemented with the second lens L2. In this embodiment, the conveying device 50 has turned over the first lens in step S109, so at this time the to-be-glued system of the first lens L1 faces the second lens L2 carried by the second carrier 34, and the lifting The device 40 drives the conveying device 50 at the first speed to superimpose the surface to be glued of the first lens L1 on the second lens L2 carried by the second carrier 34 in the first section Z1, and The rubber material on the surface to be glued of the first lens L1 stops moving after contacting the second lens L2.

Step S113 , controlling the delivery device 50 to release the first lens L1 in the first section Z1 . In this embodiment, after step S113 is completed, the step of returning the lifting device 40 to the initial position P0 and the slide table 30 to the first position is to control the lifting device 40 at the first speed Move upward to the junction of the first section Z1 and the second section Z2, and then drive the transport device 50 from the junction of the first section Z1 and the second section Z2 to move to the second section at the second speed. Steps for the starting position P0 in the second zone Z2.

Based on the above, steps S104 and S109 in this embodiment are described by taking the conveying device 50 to drive the first lens L1 to turn over at the junction of the first section Z1 and the second section Z2 as an example. In other embodiments, the conveying device 50 may also drive the first lens L1 to turn over at the joint between the second section Z2 and the third section Z3 or to turn over in the second section Z2, which is not based on this principle. The examples in the examples are limited.

Please refer to FIG. 9, in this embodiment, the lens gluing system 1 includes a detection device 60, the detection device 60 includes an image capture unit 62 and a processing unit 64, the lens gluing method includes performing a detection step S114, The inspection step S114 includes transporting the superimposed and glued first lens L1 and the second lens L2 to an inspection area; the image capture unit 62 captures the Taking a plurality of images, the processing unit 64 analyzes these images to obtain the position and area of the defect at the joint of the first lens L1 and the second lens L2, wherein as shown in FIG. 10 , because the first lens L1 and the second lens L2 The joint S of the second lens L2 is a curved surface with a height difference, and the image capture unit 62 captures images through different focal ranges F1, F2, and F3 at the joint S of the first lens L1 and the second lens L2. These images are fused into a clear result image through the multi-View Fusion image processing algorithm, and the processing unit 64 obtains the joint S of the first lens L1 and the second lens L2 according to the result image. The location and area of the defect, which can be defects such as air bubbles, dust or scratches.

To sum up, through the present invention, the lens gluing system 1 can automatically complete the action of dispensing glue and superimposing two lenses to achieve an automatic effect, and through the lens gluing system 1 of the present invention, the conveying device 50 can drive The picked-up lens moves at a specific speed in the first zone Z1, the second zone Z2 and the third zone Z3 respectively, thereby improving the inconsistency in quality and the inconsistency in yield caused by manual lamination of lenses. As for the problem of improvement, compared with the conventional method of manually laminating lenses, the lens bonding system 1 of the present invention has the effect of effectively improving product quality consistency and yield.

Moreover, through the design of the second speed greater than the first speed and the third speed of the present invention, the lifting device 40 can drive the conveying device 50 in the first section Z1 or the third section Z3 Keep moving at a slower speed to achieve the effect of accurately performing finer actions such as picking up lenses, laminating lenses or dispensing glue, not only avoiding lens slippage due to excessive moving speed when performing the aforementioned fine actions Or the problem of collision with other components can also avoid air bubbles between the rubber material and the lens and affect the product yield. And through the design that the second speed is greater than the first speed and the third speed of the present invention, the lifting device 40 can drive the conveying device 50 to maintain a faster speed in the second section Z2 to move at a faster speed in the second section Z2. On the premise of not affecting the operation of the conveying device 50 in the first zone Z1 or the third zone Z3, the overall processing time is shortened to achieve the effect of improving production efficiency.

The above description is only a preferred feasible embodiment of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the scope of the patent of the present invention.

[this invention] 1: Lens bonding system 10: Rack 12: Base 14: Horizontal slide rail 141: limit piece 16: Longitudinal slide rail 20: Glue supply device 30: sliding table 32: The first bearing seat 34: The second passenger seat 40 lifting device 50: transport device 52: Gripper 60: Detection device 62: Image capture unit 64: Processing unit A: vertical axis F1, F2, F3: focus range L1: first lens L2: second lens P0: starting position P1: first position P2: second position S: Glue S101,S102,S102',S103,S104,S105,S106,S107,S108,S109,S110,S111,S112,S113,S114: Steps Z1: first section Z2: second section Z3: the third section W: Feeding area R: mechanical arm

Fig. 1 is a perspective view of a lens bonding system in a preferred embodiment of the present invention. Fig. 2 is a side view of the lens bonding system of the above-mentioned preferred embodiment of the present invention. Fig. 3 is a side view of the lens bonding system of the above-mentioned preferred embodiment of the present invention. Fig. 4 is a side view of the lens bonding system of the above-mentioned preferred embodiment of the present invention. Fig. 5 is a side view of the lens bonding system of the above-mentioned preferred embodiment of the present invention. Fig. 6 is a side view of the lens bonding system of the above-mentioned preferred embodiment of the present invention. Fig. 7 is a flowchart of a lens gluing method according to a preferred embodiment of the present invention. Fig. 8 is a flow chart of the lens gluing method of the above-mentioned preferred embodiment of the present invention. Fig. 9 is a block diagram of the gluing system of the above preferred embodiment of the present invention. Fig. 10 is a schematic diagram of the bonding of the first lens and the second lens in the above-mentioned preferred embodiment of the present invention.

1: Lens bonding system

10: Rack

12: base

14: Horizontal slide rail

141: limit piece

16: Longitudinal slide rail

20: Glue supply device

30: sliding table

32: The first bearing seat

34: The second passenger seat

40: Lifting device

50: transport device

52: Gripper

Claims (10)

A lens bonding system comprising: 1. Glue supply device, used to provide the glue needed for lens gluing; A slide table is set under the glue supply device for placing the lenses to be glued, and the slide table can slide laterally under control; a lifting device, which can be controlled to vertically lift in a moving area between the glue supply device and the slide table; A conveying device connected with the lifting device, the conveying device is used to pick up the lens placed on the slide table and can drive the picked up lens to turn over; Wherein, the definition of the moving area includes a first section, a second section and a third section in sequence from the slide table to the glue supply device, and the lifting device drives the conveying device in the first section, the second section, and the third section. The second section and the third section vertically ascend and descend at a first speed, a second speed and a third speed respectively, wherein the second speed is greater than the first speed and the third speed. The lens gluing system as described in claim 1, wherein the slide table includes a first bearing seat and a second bearing seat adjacently arranged to carry a lens respectively, and the slide table can be controlled at a first position and a second position, the lifting device can drive the conveying device to move up and down along a longitudinal axis. When the sliding platform is in the first position, the longitudinal axis passes through the first bearing seat. When the sliding platform At the second position, the longitudinal axis passes through the second bearing seat. The lens gluing system as described in claim 2, wherein when the sliding table moves to the first position, the conveying device can pick up the lens placed on the first bearing seat in the first section, when the sliding table When the table moves to the second position, the conveying device can superimpose the lens picked up from the first carrying seat on the lens carried by the second carrying seat in the first section. The lens gluing system as claimed in claim 3, wherein the conveying device drives the picked lens at the joint between the first section and the second section, the second section or the second section and the third section Segment joins are flipped. The lens gluing system as described in claim 4, wherein the lifting device drives the lens picked up by the conveying device to move in the third section to a position in contact with the glue provided by the glue supply device and then stop moving. The lens gluing system as described in claim 5, wherein the lens picked up by the conveying device has a surface to be glued for contact with the glue provided by the glue supply device, and the conveying device drives the picked up lens to turn over so that the surface to be glued faces The glue supply device is either facing away from the glue supply device. A lens gluing method using the lens gluing system as described in claim 1, wherein the slide table includes a first bearing seat and a second bearing seat adjacently arranged to carry a first lens and a second lens respectively , the first lens has a surface to be glued, and the sliding table can be controlled to slide laterally between a first position and a second position. The lens gluing method includes the following steps: controlling the slide to move to the first position; controlling the lifting device to drive the conveying device to move close to the position of the first lens on the first carrier at the first speed; controlling the transport device to pick up the first lens; controlling the lifting device to drive the conveying device to move up or down in the first section at the first speed; controlling the lifting device to drive the conveying device to move up or down in the second section at the second speed; controlling the lifting device to drive the conveying device to move up or down in the third section at the third speed; controlling the glue supply device to dispense glue on the surface to be glued of the first lens in the third section; controlling the conveying device to drive the first lens overturning at the junction of the first segment and the second segment, the second segment, or the junction of the second segment and the third segment; controlling the slide to move to the second position; controlling the conveying device to superimpose the surface to be glued of the first lens on the second lens carried by the second carrier in the first section, so that the first lens and the second lens are glued; controlling the delivery device to release the first lens in the first section. The lens gluing method of the lens gluing system as described in Claim 7, wherein the lens gluing system includes a detection device, the detection device includes an image capture unit and a processing unit, and the lens gluing method includes performing a detection step, the The detection step includes transporting the glued first lens and the second lens to a detection area; the image capture unit captures a plurality of images at the glued place of the first lens and the second lens, and the processing unit analyzes the The image is used to obtain the position and area of the defect at the joint of the first lens and the second lens. The lens bonding method of the lens bonding system as described in Claim 8, wherein the image capture unit captures the images respectively in different focal ranges where the first lens and the second lens are bonded together. The lens gluing method of the lens gluing system as described in Claim 9, wherein the detection step includes merging these images into a result image through an image processing algorithm, and the processing unit obtains between the first lens and the first lens according to the result image The location and area of the defect in the glued part of the second lens.

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