CN207301380U - A kind of eyeglass film sticking apparatus - Google Patents

Abstract

The utility model discloses a kind of eyeglass film sticking apparatus.Eyeglass film sticking apparatus includes stent, upper die mechanism, lower die mechanism and diaphragm locating mechanism；Upper die mechanism includes upper mold and upper mold driving unit；Lower die mechanism includes lower die；Diaphragm locating mechanism includes diaphragm locating piece；Upper mold driving unit is arranged to be used for driving upper mold and is molded with lower die.Diaphragm hot bending can be the profiling diaphragm for having the same shape with eyeglass to be pasted by the upper die mechanism and lower die mechanism of the disclosure.By the way that profiling diaphragm and eyeglass to be pasted are fit together, it can effectively avoid and produce stress between diaphragm and eyeglass to be pasted, advantageously ensure that the optical property and quality of optical imaging of eyeglass.

Description

A lens film sticking device

technical field

The utility model relates to the field of lens film sticking, in particular to a lens film sticking device.

Background technique

Optical lenses usually need to add a film on the lens to enhance the optical performance of the lens. With the development of the lens coating process, many optical lenses are coated by the film process instead of the traditional coating process. Especially based on comprehensive considerations such as cost and performance, more and more optical lenses used in the fields of AR (Augmented Reality, augmented reality technology) and VR (Virtual Reality, virtual reality) adopt filming technology.

In the existing film sticking process, the film is first pasted on the flat base material of the optical lens, and then the film-coated lens is obtained by hot-pressing the plate base material after film sticking. However, due to the stress between the diaphragm and the flat substrate, the curvature of the obtained film lens is difficult to guarantee under the above stress, resulting in changes in optical properties such as the focal power of the film lens, which seriously affects the quality of optical imaging of the lens .

Utility model content

One purpose of the utility model is to provide a new technical solution for lens filming that can effectively guarantee the optical imaging quality of the filmed lens.

According to the first aspect of the present invention, a lens film sticking device is provided.

The lens film sticking device includes a bracket, an upper mold mechanism, a lower mold mechanism and a diaphragm positioning mechanism; wherein,

The upper mold mechanism includes an upper mold and an upper mold driving unit, and the upper mold driving unit is installed on the bracket;

The lower mold mechanism includes a lower mold, and the lower mold is arranged on the support;

The diaphragm positioning mechanism is installed on the bracket, and the diaphragm positioning mechanism includes a diaphragm positioning member, and the diaphragm positioning member cooperates with the diaphragm to position the diaphragm on the upper mold and the between dies;

The upper mold driving unit is configured to drive the upper mold to close the lower mold, to form the diaphragm positioned by the diaphragm positioning mechanism by hot bending, and to press the hot bent diaphragm on the Placed on the lens to be pasted on the lower mold.

Optionally, the lens film sticking device also includes a film heating mechanism;

The diaphragm heating mechanism includes a heating element and a heating element driving unit;

said heating element is arranged to heat the membrane;

The heating element driving unit is configured to drive the heating element to move, so that the heating element moves toward or away from the membrane.

Optionally, the membrane heating mechanism also includes a driving gear and a connecting plate;

The driving gear is connected to the driving output end of the heating element driving unit, the connecting plate is connected to the heating element, and a rack portion is provided on the connecting plate;

The driving gear is engaged with the rack portion for transmission, so as to make the heating element move.

Optionally, the heating element includes an upper baking plate and a lower baking plate;

The upper baking plate and the lower baking plate are arranged to face different surfaces of the membrane.

Optionally, the bracket includes a bracket body and a bracket base, and the bracket body and the bracket base are fixedly connected;

The driving unit of the upper mold is installed on the main body of the bracket, and the lower mold is arranged on the base of the bracket.

Optionally, the stent body has an L-shape;

The bracket base is fixedly connected to the straight arm of the bracket body, and the upper mold drive unit is installed on the other straight arm of the bracket body;

A line between the center of gravity of the upper mold and the center of gravity of the lower mold is perpendicular to the straight arm on which the driving unit of the upper mold is installed on the support body.

Optionally, the lower mold mechanism further includes a lower mold driving unit, and the lower mold driving unit is installed on the bracket;

The lower mold driving unit is configured to drive the lower mold to move, so that the lower mold moves between inside and outside of the area covered by the membrane; or,

The lower mold driving unit is configured to drive the lower mold to close the upper mold.

Optionally, the diaphragm positioning mechanism also includes a slide rail, a slider and a slider positioning member;

The slide rail is installed on the support;

The diaphragm positioning part includes a bracket diaphragm positioning part and a slider diaphragm positioning part, the bracket diaphragm positioning part is arranged on the bracket, and the slider diaphragm positioning part is arranged on the slider;

The slider is slidably matched with the slide rail, and the slider positioning member is configured to position the slider at different positions of the slide rail.

Optionally, the slider positioning member includes a threaded rod and a rocker arm;

Both ends of the threaded rod are rotatably connected to the bracket, and the threaded rod is threadedly matched with the slider;

The rocker arm is configured to rotate the threaded rod so that the slider moves along the threaded rod.

Optionally, the upper mold is a convex film, and the lower mold is a concave mold.

Optionally, both the upper mold and the lower mold are made of silica gel.

According to an embodiment of the present disclosure, the upper mold mechanism and the lower mold mechanism can heat-bend the film into a profiling film having the same shape as the lens to be pasted. By bonding the profiling diaphragm and the lens to be bonded together, the stress between the diaphragm and the lens to be bonded can be effectively avoided, which is beneficial to ensure the optical performance and optical imaging quality of the lens.

Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention.

FIG. 1 is a structural schematic diagram of a viewing angle of an embodiment of the lens film sticking device of the present invention.

Fig. 2 is a structural schematic view of another viewing angle of the embodiment of the lens film sticking device of the present invention.

Fig. 3 is a structural schematic view of another viewing angle of the embodiment of the lens film sticking device of the present invention.

Fig. 4 is a flow chart of the lens film sticking process of the present invention.

The diagram is marked as follows:

Bracket-1, bracket main body-11, bracket base-12, upper mold mechanism-2, upper mold-21, upper mold driving unit-22, lower mold mechanism-3, lower mold-31, lower mold driving unit-32, Diaphragm positioning mechanism-4, diaphragm positioning part-41, bracket diaphragm positioning part-411, slider diaphragm positioning part-412, slide rail-42, slider-43, slider positioning part-44, threaded rod -441, rocker arm-442, diaphragm heating mechanism-5, heating element-51, upper baking plate-511, lower baking plate-512, heating element driving unit-52, driving gear-53, connecting plate-54, gear Strip-541, Diaphragm-6.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature, and in no way serves as any limitation of the invention and its application or use.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In order to solve the problem that the optical performance of the coated lens is changed and the optical imaging quality of the lens is affected due to the stress between the lens and the diaphragm, the present disclosure provides a lens coating device.

As shown in FIGS. 1 to 3 , the lens film sticking device of the present disclosure includes a bracket 1 , an upper mold mechanism 2 , a lower mold mechanism 3 and a film positioning mechanism 4 .

The upper mold mechanism 2 includes an upper mold 21 and an upper mold driving unit 22 , and the upper mold driving unit 22 is installed on the support 1 . The installation method of the upper mold drive unit 22 on the bracket 1 can be, for example, bolted or connected to the bracket. The upper mold driving unit 22 can be, for example, a motor, an air pump, or a hydraulic pump. The lower mold mechanism 3 includes a lower mold 31 , and the lower mold 31 is arranged on the support 1 . The lower mold 31 can be formed directly on the bracket 1, or the lower mold 31 can be installed on the bracket 1 through a connecting bracket. The upper mold 21 and the lower mold 31 are mold structures that can be molded together to form materials therebetween. During specific implementation, the upper mold 21 can be set as a convex mold, and the lower mold 31 can be set as a concave mold; or, the upper mold 21 can be set as a concave mold, and the lower mold 31 can be set as a convex mold.

The diaphragm positioning mechanism 4 is installed on the bracket 1 . The diaphragm positioning mechanism 4 is used to fix the diaphragm, and its installation method can be determined according to the specific structure or type of the diaphragm positioning mechanism 4 . The diaphragm positioning mechanism 4 includes a diaphragm positioning member 41 . The membrane positioning member 41 cooperates with the membrane to position the membrane between the upper mold 21 and the lower mold 31 . The diaphragm positioning member 41 can be, for example, a hook or a clamping claw. The hook can be hooked to a positioning hole on the diaphragm, and the clamping claw can clamp the edge of the diaphragm. During specific implementation, the hook can be directly arranged on the bracket 1, or the jaws can be installed on the bracket 1 through the connecting bracket.

The upper mold drive unit 22 is configured to drive the upper mold 21 and the lower mold 31 to close the mold, to form the membrane positioned by the hot-bending diaphragm positioning mechanism 4, and to press the hot-bent formed membrane on the lower mold 31 to place it on the lens to be pasted. During specific implementation, the upper mold mechanism 2 and/or the lower mold mechanism 3 itself may have a heating function, so as to realize the hot bending and forming operation of the membrane. After the film to be processed is bent and formed by the lens film sticking device, a profiling film with the same shape as the lens to be pasted can be obtained, and the profiling film can be attached to the lens to be pasted to obtain a film lens.

When the lens film sticking device of the present disclosure is used, the film to be processed can be positioned between the upper mold 21 and the lower mold 31 through the film positioning member 41 . Then the upper mold drive unit 22 drives the upper mold 21 to move towards the lower mold 31, and the upper mold 21 and the lower mold 31 are molded together to obtain a profiling diaphragm having the same shape as the lens to be pasted. Then the upper mold driving unit 22 drives the upper mold 21 away from the lower mold 31, and places the lens to be bonded that has been hot-bent and formed on the lower mold 31 by manual pick-and-place or mechanical hand pick-and-place. Then the upper mold driving unit 22 drives the upper mold 21 to move towards the lower mold 31, and the upper mold 21 and the lower mold 31 are closed to press the heat-bent formed profiling diaphragm on the lens to be attached on the lower mold 31, The profiling film and the lens to be bonded are bonded together to obtain a film lens.

In order to ensure the integrity and effectiveness of the diaphragm, the diaphragm generally includes a film layer, an adhesive layer, an upper protective film layer and a lower protective film layer. The upper protective film layer, the film layer, the adhesive layer and the lower protective film layer are arranged in sequence. The lower protective film layer is torn off before the profiling film is bonded to the lens to be attached, which can ensure the bonding effect and the integrity and effectiveness of the protective film.

The terms "upper" and "lower" in this disclosure only represent the relative positional relationship between the various components of the device or material, and this relative positional relationship will not change when the device or material is displaced, turned over or turned upside down .

The upper mold mechanism 2 and the lower mold mechanism 3 in the present disclosure can heat-bend the film into a profiling film having the same shape as the lens to be pasted. By bonding the profiling diaphragm and the lens to be bonded together, the stress between the diaphragm and the lens to be bonded can be effectively avoided, which is beneficial to ensure the optical performance and optical imaging quality of the lens.

Optionally, the lens film sticking device further includes a film heating mechanism 5 . The diaphragm heating mechanism 5 includes a heating element 51 and a heating element driving unit 52 . The heating element 51 can be, for example, a heating plate or an electric heating tube. The heating element driving unit 52 can be, for example, a motor or an air pump or a hydraulic pump. The heating element driving unit 52 can be installed on the bracket 1 by means of bolt fixing or connecting bracket fixing.

A heating element 51 is provided for heating the membrane. The heating element driving unit 52 is configured to drive the heating element 51 to move, so that the heating element 51 moves toward or away from the membrane. When the membrane needs to be heated, the heating element driving unit 52 can drive the heating element 51 to move toward the direction close to the membrane. After the heating operation is completed, the heating element driving unit 52 can drive the heating element 51 to move away from the film, so as to prevent the heating element 51 from interfering with the upper mold 21 and the lower mold 31 that are clamped.

Optionally, the membrane heating mechanism 5 further includes a driving gear 53 and a connecting plate 54 . The driving gear 53 is connected to the driving output end of the heating element driving unit 52 , so that the movement of the heating element driving unit 52 can drive the driving gear 53 to move. The connection plate 54 is connected to the heating element 51 , and the connection plate 54 is provided with a rack portion 541 . The connecting plate 54 can be connected with the heating element 51 by means of welding or bolting. The rack portion 541 may be disposed on the edge of the connecting plate 54 , or the rack portion 541 may be disposed on the inner edge of the hole-like structure on the connecting plate 54 . The driving gear 53 is meshed with the rack portion 541 for transmission. In this way, when the driving gear 53 moves, the connecting plate 54 also moves synchronously, so that the heating element 51 moves. This membrane heating mechanism 5 is easy to implement, and the heating element 51 is easy to move.

In a specific implementation, the heating element driving unit 52 may be a rotating motor. When the heating element driving unit 52 drives the driving gear 53 to rotate, the driving gear 53 drives the connecting plate 54 to move. The heating element 51 connected to the connecting plate 54 moves together with the connecting plate 54 .

Further, the heating element 51 includes an upper baking plate 511 and a lower baking plate 512 . The upper baking plate 511 and the lower baking plate 512 are arranged to face different surfaces of the membrane. That is, the membrane can be located between the upper baking plate 511 and the lower baking plate 512 during heating, thereby effectively ensuring the heating uniformity of the membrane.

Optionally, the stand 1 includes a stand body 11 and a stand base 12 . The bracket main body 11 and the bracket base 12 are fixedly connected, and the fixed connection between the two can be realized by means of welding, bolting or integral molding. The upper mold driving unit 22 is installed on the bracket main body 11 , and the lower mold 31 is arranged on the bracket base 12 .

Further, the bracket main body 11 has an L-shape. The support base 12 is fixedly connected to the straight arm of the support main body 11 , and the upper mold driving unit 22 is installed on the other straight arm of the support main body 11 . The connecting line between the center of gravity of the upper mold 21 and the center of gravity of the lower mold 31 is perpendicular to the bracket body 11 and the straight arm of the upper mold driving unit 22 is installed. This arrangement is conducive to improving the working efficiency of the lens film sticking device.

Optionally, the lower mold mechanism 3 further includes a lower mold driving unit 32 . The lower mold driving unit 32 is installed on the support 1 . The installation method of the lower mold driving unit 32 on the bracket 1 can be, for example, bolted or connected to the bracket. The lower mold driving unit 32 may be, for example, a motor, an air pump, or a hydraulic pump.

The lower mold drive unit 32 is configured to drive the lower mold 31 to move so that the lower mold 31 moves between the inside and outside of the area covered by the diaphragm; and/or the lower mold drive unit 32 is configured to drive the lower mold 31 and upper mold 21 matching molds.

In order to facilitate placing the lens to be laminated on the lower mold 31, after the profiling membrane is formed, the lower mold driving unit 32 can drive the lower mold 31 to move from the area covered by the membrane to outside the area covered by the membrane. After the lens is placed on the lower mold 31, the lower mold driving unit 32 can drive the lower mold 31 to move back from the area covered by the diaphragm to the area covered by the diaphragm, and make the lower mold 31 correspond to the upper mold 21, so that the upper mold 31 The mold 21 can be closed with the lower mold 31 again. During specific implementation, the lower mold driving unit 32 can drive the lower mold 31 to move back and forth along the guide rail or the guide groove.

In order to improve the clamping efficiency of the upper mold 21 and the lower mold 31 , the lower mold driving unit 32 can drive the lower mold 31 to clamp the upper mold 21 . That is, the upper mold 21 and the lower mold 31 can move toward each other when they are closed.

The moving mode of the lower die 31 can be selected according to actual needs. For example, the lower mold driving unit 32 can drive the lower mold 31 to move, and can drive the lower mold 31 to close the upper mold 21 . For another example, the lower mold driving unit 32 may only drive the lower mold 31 to move. For another example, the lower mold driving unit 32 may only drive the lower mold 31 to close the upper mold 21 .

Optionally, the diaphragm positioning mechanism 4 further includes a sliding rail 42 , a sliding block 43 and a sliding block positioning member 44 . The slide rail 42 is installed on the support 1 . The slide rail 42 may have a rod-like structure. The diaphragm positioning part 41 includes a bracket diaphragm positioning part 411 and a slider diaphragm positioning part 412 , the bracket diaphragm positioning part 411 is arranged on the bracket 1 , and the slider diaphragm positioning part 412 is arranged on the slider 43 . The bracket diaphragm positioning part 411 and the slider diaphragm positioning part 412 may have a hook structure. The bracket membrane positioning part 411 can be connected with the bracket 1 through integral molding or welding. The slider membrane positioning part 412 can be connected with the slider 43 by integral molding or welding.

The sliding block 43 is slidingly matched with the sliding rail 42 , and the sliding block 43 can move along the sliding rail 42 . The slider positioning member 44 is provided for positioning the slider 43 at different positions of the slide rail 42 . The specific structure of the slider positioning member 44 can be flexibly selected according to actual needs. For example, the slider locating member 44 is a jaw that can fix the slider 43 on the slide rail 42 . For another example, the slider positioning member 44 is a protrusion on the slide rail 42, and the slider 43 is provided with a groove that can cooperate with the protrusion, and the slider 43 is positioned on the slide rail 42 through the cooperation of the protrusion and the groove. at different locations.

After the diaphragm is fixed on the bracket diaphragm positioning part 411 and the slider diaphragm positioning part 412 , adjust the position of the slider 43 to adjust the distance between the slider diaphragm positioning part 412 and the bracket diaphragm positioning part 411 . The diaphragm positioning mechanism 4 of the present disclosure can fix the diaphragm. In addition, by adjusting the distance between the diaphragm positioning part 412 of the slider and the diaphragm positioning part 411 of the bracket, the diaphragm positioning mechanism 4 can maintain the tension of the diaphragm, so as to heat-bend the diaphragm efficiently and reliably.

Further, the slider positioning member 44 includes a threaded rod 441 and a rocker arm 442 . Both ends of the threaded rod 441 are rotatably connected to the bracket 1 , and the threaded rod 441 is threadedly engaged with the slider 43 . The rotational connection between the threaded rod 441 and the bracket 1 can be realized by means of shaft-hole fit or bearing connection.

The rocker arm 442 is configured to rotate the threaded rod 441 so that the slider 43 moves along the threaded rod 441 . When the threaded rod 441 is rotated by the rocker arm 442 , the slider 43 can move along the slide rail 42 under the push of the threaded rod 441 . In this way, according to the size of the diaphragm, the diaphragm positioning mechanism 4 can adjust the distance between the diaphragm positioning part 412 of the slider and the diaphragm positioning part 411 of the bracket, so as to maintain the tension of the diaphragm.

Optionally, the upper mold 21 is a convex film, and the lower mold 31 is a concave mold.

Optionally, both the upper mold 21 and the lower mold 31 are made of silica gel. The upper mold 21 and the lower mold 31 made of silica gel are beneficial to protect the diaphragm.

Next, take the specific embodiment shown in the figure as an example to illustrate the lens film sticking device of the present disclosure:

As shown in FIG. 1 , the lens film sticking device includes a bracket 1 , an upper mold mechanism 2 , a lower mold mechanism 3 , a membrane positioning mechanism 4 and a membrane heating mechanism 5 .

The stand 1 includes a stand body 11 and a stand base 12 . The bracket main body 11 has an L-shape. The support base 12 is fixedly connected with the straight arm of the support main body 11 .

The upper mold mechanism 2 includes an upper mold 21 and an upper mold driving unit 22 , and the upper mold driving unit 22 is installed on the other straight arm of the bracket main body 11 . The lower mold mechanism 3 includes a lower mold 31 and a lower mold driving unit 32 , and the lower mold driving unit 32 is installed on the support base 12 . The upper mold 21 is a convex film, the lower mold 31 is a concave mold, and both the upper mold 21 and the lower mold 31 are made of silica gel. The line between the center of gravity of the upper mold 21 and the center of gravity of the lower mold 31 is perpendicular to the straight arm of the bracket main body 11 on which the upper mold driving unit 22 is installed.

The upper mold driving unit 22 can drive the upper mold 21 and the lower mold 31 to close the mold, and form the membrane positioned by the membrane positioning mechanism 4 by thermal bending. The upper mold driving unit 22 can also drive the upper mold 21 and the lower mold 31 to close the mold, so as to press-fit the hot-bending film onto the lens to be attached placed on the lower mold 31 . The lower mold driving unit 32 can drive the lower mold 31 to move, so that the lower mold 31 moves between the inside and outside of the area covered by the film, so that the lens to be bonded is placed on the lower mold 31 more conveniently.

The diaphragm positioning mechanism 4 includes a diaphragm positioning member 41 , a slide rail 42 , a slider 43 and a slider positioning member 44 . The slide rail 42 is installed on the support 1 . The diaphragm positioning part 41 includes a bracket diaphragm positioning part 411 and a slider diaphragm positioning part 412 , the bracket diaphragm positioning part 411 is arranged on the bracket 1 , and the slider diaphragm positioning part 412 is arranged on the slider 43 . The sliding block 43 is slidingly matched with the sliding rail 42 , and the sliding block 43 can move along the sliding rail 42 . The slider positioner 44 includes a threaded rod 441 and a rocker arm 442 . Both ends of the threaded rod 441 are rotatably connected to the bracket 1 , and the threaded rod 441 is threadedly engaged with the slider 43 . The rocker arm 442 can rotate the threaded rod 441 so that the slider 43 moves along the threaded rod 441 to position the slider 43 at different positions on the slide rail 42 .

The membrane heating mechanism 5 includes a heating element 51 , a heating element driving unit 52 , a driving gear 53 and a connecting plate 54 . The heating element 51 includes an upper grilling plate 511 and a lower grilling plate 512 . The upper baking plate 511 and the lower baking plate 512 are arranged to face different surfaces of the membrane. The heating element driving unit 52 is installed on the straight arm connecting the support body 11 and the support base 12 . A driving gear 53 is connected to the driving output end of the heating element driving unit 52 . The connecting plate 54 is connected to the heating element 51 . The connecting plate 54 is provided with a hole structure, and the inner edge of the hole structure is provided with a rack portion 541 . The driving gear 53 is engaged with the rack portion 541 for transmission. When the heating element driving unit 52 drives the driving gear 53 to move, the connecting plate 54 moves synchronously. The heating element 51 connected to the connecting plate 54 moves together with the connecting plate 54, and the heating element 51 can move toward or away from the membrane, thereby heating the membrane or moving away from the membrane.

When the lens film sticking device of this embodiment is used, at first, the diaphragm 6 to be processed is fixed on the bracket diaphragm positioning part 411 and the slider diaphragm positioning part 412, and then the threaded rod 441 is rotated by the rocker arm 442, and the slider 43 Pushed by the threaded rod 441 , it moves along the slide rail 42 to adjust the distance between the diaphragm positioning part 412 of the slider and the diaphragm positioning part 411 of the bracket, so that the diaphragm 6 to be processed remains in a tensioned state.

Then, the heating element driving unit 52 drives the driving gear 53 to move, the driving gear 53 drives the connecting plate 54 to move, and the heating element 51 connected to the connecting plate 54 moves towards the direction close to the membrane 6 to be processed. When the heating element 51 moves to the heating position, the upper baking plate 511 and the lower baking plate 512 heat the film 6 to be processed. After the heating operation is completed, the heating element driving unit 52 drives the driving gear 53 to move, and the driving gear 53 drives the connecting plate 54 to move, and the heating element 51 connected to the connecting plate 54 moves toward a direction away from the film 6 to be processed, so that the heating element 51 Leave the diaphragm.

Then, the upper mold drive unit 22 drives the upper mold 21 to move towards the lower mold 31. After the upper mold 21 and the lower mold 31 are closed, the heated membrane 6 to be processed can be hot-bent formed, thereby obtaining a The lens has a contoured diaphragm of the same shape. After the profiling diaphragm is obtained, the upper mold driving unit 22 drives the upper mold 21 away from the lower mold 31 .

Next, the lower mold driving unit 32 drives the lower mold 31 to move from the area covered by the membrane to outside the area covered by the membrane. After the lens to be laminated is placed on the lower mold 31, the lower mold driving unit 32 drives the lower mold 31 to move back from the area covered by the film to the area covered by the film, and makes the lower mold 31 correspond to the upper mold 21.

Then, tear off the protective film layer on the profiling diaphragm, so that the adhesive layer of the profiling diaphragm corresponds to the lens to be pasted. The upper mold driving unit 22 drives the upper mold 21 to move towards the lower mold 31 again. After the upper mold 21 and the lower mold 31 are closed, the hot-bent profiling diaphragm is pressed onto the lens to be attached on the lower mold 31 . The profiling film and the lens to be pasted are bonded together to obtain a filmed lens.

As shown in FIG. 4 , the lens film sticking device of the present disclosure may have a corresponding lens film sticking process. The lens filming process includes the following steps:

Step S1: Position the membrane to be processed by the membrane positioning mechanism. The diaphragm positioning mechanism can position the diaphragm to be processed by clamping and other methods. In particular, the diaphragm positioning mechanism is the diaphragm positioning mechanism in the lens film sticking device of the present invention.

Step S2: hot-bending the membrane to be processed through the clamping operation of the upper mold mechanism and the lower mold mechanism to obtain a profiling membrane. The upper and lower mold mechanisms can be heatable mold structures well known in the art. In particular, the upper mold mechanism and the lower mold mechanism are the upper mold mechanism and the lower mold mechanism in the lens film sticking device of the present invention. The hot bending forming of the membrane to be processed can be realized by using the upper mold mechanism and the lower mold mechanism to shape the heated membrane, or by using the upper mold mechanism and the lower mold mechanism to simultaneously perform heating and forming operations on the membrane to be processed. The profiled film should have the same shape as the lens to be attached.

Step S3: Position the lens to be attached on the lower mold mechanism. The lens to be attached can be positioned on the lower mold mechanism by means of positioning columns or shape matching limit. The lens to be attached refers to the lens that has been processed to have a certain curvature. The lens to be attached can be obtained by injection molding or heat bending molding.

Step S4: The profiling diaphragm is pressed onto the lens to be attached through the mold clamping operation of the upper mold mechanism and the lower mold mechanism, so that the profiling diaphragm and the lens to be attached are bonded together. During specific implementation, an adhesive layer for pasting can be selected on the profiling diaphragm, or an adhesive layer for pasting can be arranged on the lens to be pasted according to actual needs.

The lens film sticking process of the present disclosure can effectively avoid stress between the film and the lens to be pasted by pasting a profiling film having the same shape as the lens to be pasted on the lens to be pasted, which is conducive to ensuring the optical performance and optical properties of the lens. image quality.

Optionally, step S2 includes:

Step S201: heating the film to be processed by a film heating mechanism to obtain a softened film. The film heating mechanism can be, for example, a heating plate or a hot air blower. In particular, the film heating mechanism is the film heating mechanism in the lens film sticking device of the present invention.

Step S202: forming and softening the diaphragm through the clamping operation of the upper mold mechanism and the lower mold mechanism to obtain a profiling diaphragm. The mold closing of the upper mold mechanism and the lower mold mechanism can easily form the softened diaphragm into a profiling diaphragm.

Optionally, step S201 includes:

After the membrane to be processed is heated to a preset temperature by the membrane heating mechanism, the membrane heating mechanism is moved outside the mold clamping working area of the upper mold mechanism and the lower mold mechanism to obtain a softened membrane. Here, the diaphragm heating mechanism can move inside and outside the mold clamping working area of the upper mold mechanism and the lower mold mechanism, thereby preventing the diaphragm heating mechanism from interfering with the mold clamping of the upper mold mechanism and the lower mold mechanism.

Optionally, step S2 also includes:

Step S203: removing the protective film of the profiling film to expose the adhesive layer of the profiling film. The adhesive layer arranged on the profiling diaphragm can stick the profiling diaphragm on the lens to be pasted.

Optionally, the lens to be attached in step S3 is obtained through the following steps:

Hot-bending the flat base material to obtain the lens to be pasted.

The thermal bending of the lens to be attached can be realized by using a mold to shape the heated lens.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration rather than limiting the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims (11)

1. A lens film sticking device is characterized by comprising a support, an upper die mechanism, a lower die mechanism and a film positioning mechanism; wherein,

the upper die mechanism comprises an upper die and an upper die driving unit, and the upper die driving unit is arranged on the bracket;

the lower die mechanism comprises a lower die, and the lower die is arranged on the bracket;

the diaphragm positioning mechanism is arranged on the support and comprises a diaphragm positioning piece which is matched with the diaphragm so as to position the diaphragm between the upper die and the lower die;

the upper die driving unit is used for driving the upper die and the lower die to be matched, so that the diaphragm positioned by the diaphragm positioning mechanism is formed in a hot bending mode, and the diaphragm formed in the hot bending mode is pressed on the lens to be attached placed on the lower die in a pressing mode.

2. The lens film sticking device according to claim 1, further comprising a film heating mechanism;

the membrane heating mechanism comprises a heating element and a heating element driving unit;

the heating element is arranged to heat the membrane;

the heating element driving unit is configured to drive the heating element to move so that the heating element moves toward or away from the film.

3. The lens film sticking device according to claim 2, wherein the film heating mechanism further comprises a driving gear and a connecting plate;

the driving gear is connected with the driving output end of the heating element driving unit, the connecting plate is connected with the heating element, and a rack part is arranged on the connecting plate;

the drive gear is in meshing transmission with the rack portion to move the heating element.

4. The lens filming apparatus of claim 2 wherein said heating element comprises an upper grilling plate and a lower grilling plate;

the upper and lower baking sheets are disposed to face different surfaces of the film sheet.

5. The lens film sticking device according to claim 1, wherein the bracket comprises a bracket main body and a bracket base, and the bracket main body is fixedly connected with the bracket base;

the upper die driving unit is installed on the support main body, and the lower die is arranged on the support base.

6. The lens film attachment device according to claim 5, wherein the holder main body has an L-shape;

the bracket base is fixedly connected with a straight arm of the bracket main body, and the upper die driving unit is arranged on the other straight arm of the bracket main body;

and a connecting line between the gravity center of the upper die and the gravity center of the lower die is perpendicular to the straight arm of the upper die driving unit arranged on the support main body.

7. The lens filming apparatus of claim 1, wherein the lower mold mechanism further comprises a lower mold drive unit mounted on the carriage;

the lower die driving unit is used for driving the lower die to move so that the lower die moves between the inside and the outside of the area covered by the membrane; and/or the presence of a gas in the gas,

the lower die driving unit is configured to drive the lower die and the upper die to be clamped.

8. The lens film sticking device according to claim 1, wherein the film positioning mechanism further comprises a slide rail, a slide block and a slide block positioning member;

the sliding rail is arranged on the bracket;

the diaphragm positioning piece comprises a bracket diaphragm positioning piece and a sliding block diaphragm positioning piece, the bracket diaphragm positioning piece is arranged on the bracket, and the sliding block diaphragm positioning piece is arranged on the sliding block;

the slider is in sliding fit with the slide rail, and the slider positioning part is arranged to position the slider at different positions of the slide rail.

9. The lens filming apparatus of claim 8, wherein the slider positioning element comprises a threaded rod and a rocker arm;

two ends of the threaded rod are rotatably connected with the bracket, and the threaded rod is in threaded fit with the sliding block;

the rocker arm is configured to rotate the threaded rod to cause the slider to move along the threaded rod.

10. The lens film sticking device according to any one of claims 1 to 9, wherein the upper mold is a convex mold and the lower mold is a concave mold.

11. The lens film sticking device according to any one of claims 1 to 9, wherein the upper mold and the lower mold are made of a silicone material.