CN108622456B - Method and device for sticking protective film to camera component - Google Patents
Method and device for sticking protective film to camera component Download PDFInfo
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- CN108622456B CN108622456B CN201710175186.8A CN201710175186A CN108622456B CN 108622456 B CN108622456 B CN 108622456B CN 201710175186 A CN201710175186 A CN 201710175186A CN 108622456 B CN108622456 B CN 108622456B
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- film
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- 230000001681 protective effect Effects 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims description 59
- 230000001070 adhesive effect Effects 0.000 claims description 59
- 239000011521 glass Substances 0.000 claims description 37
- 239000012785 packaging film Substances 0.000 claims description 30
- 229920006280 packaging film Polymers 0.000 claims description 30
- 239000010410 layer Substances 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000001179 sorption measurement Methods 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 description 9
- 238000012797 qualification Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
- B65B33/02—Packaging small articles, e.g. spare parts for machines or engines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Packaging Frangible Articles (AREA)
Abstract
The invention provides a method for sticking a protective film to camera modules, which comprises the following steps that step L, a plurality of camera modules are simultaneously adsorbed and fixed on a carrier plate A from a plurality of product grooves of a containing box in a vacuum way, and each camera module is fixed on a certain product grade of the carrier plate A; step M, the whole protective film containing a plurality of single protective films is adsorbed and fixed on a carrier plate B in vacuum, the carrier plate B directly attracts the plurality of single protective films, and the release film of the whole protective film is torn off, and each single protective film is fixed on a certain boss of the carrier plate B; and step N, aligning and pressing the carrier plate A and the carrier plate B to enable the camera component to be aligned and attached with the single protective film. The invention also provides a device correspondingly. According to practical inspection, the method and the device provided by the invention have the advantages that the production efficiency and the product quality of the camera component for sticking the protective film are greatly improved, and great contribution is made to the aspects of controlling the production cost, improving the labor efficiency and improving the customer satisfaction.
Description
Technical Field
The invention relates to the field of processing of camera components in mobile phones, tablet computers and various monitoring cameras, in particular to a method and a device for sticking a protective film to a camera component.
Background
The camera components in mobile phones, tablet computers and various monitoring cameras are generally small in size. As shown in fig. 1, the camera assembly includes a metal ring 01 (e.g. a stainless steel ring) and a glass sheet 02 (e.g. a sapphire sheet), wherein an annular step 011 protruding towards the radial inner side is arranged in an inner through hole of the metal ring, the glass sheet is fixedly arranged at one axial end of the annular step in the metal ring, and the other axial end of the annular step in the metal ring is required to be attached with the protective film for protecting the back surface of the glass sheet; the metal ring, the glass sheet and the attached protective film are coaxially arranged; the radial center position of annular step is equipped with axial through-hole 012, and the back of glass piece with annular step is fixed (for example through hot melt adhesive high temperature laminating), camera subassembly's back hole 013 is the hole that is used for inserting the protection film to step department from the back of camera subassembly. After the protective film is attached to the camera component, the camera component is assembled with other parts in the mobile phone or the tablet personal computer. The protective film protects the back of the sapphire lens during subsequent assembly, preventing hard objects from scratching the lens and solder and other impurities from contaminating the lens.
In the prior art, the protective film is pasted on the camera component in a manual single protective film pasting mode, and the protective film pasting work is completed manually through tweezers and the adhesive packaging film. The adhesive packaging film is divided into an upper layer and a lower layer, the two surfaces of the upper layer are not provided with adhesive, the upper surface of the lower layer contains adhesive with strong adhesive force, and the adhesive packaging film can be used for adhering the front surface or the back surface of the camera component. In the prior art, after a plurality of camera assemblies are stuck to the lower layer one by one, the camera assemblies are covered by the upper layer, and positions without the camera assemblies between the upper layer and the lower layer are stuck tightly.
Specifically, the method for manually and singly attaching the protective film in the prior art comprises the following steps: the camera module is clamped by tweezers and stuck on the lower layer of the adhesive packaging film one by one, and the front face (one end containing the sapphire sheet) of the camera module is stuck and fixed, so that the back face of the camera module is exposed. Then, the single protective film is manually pasted, namely, the single protective film is taken out from the release film of the whole protective film by using tweezers, and is poked into the step from the back hole of the camera assembly by using tweezers, so that the peripheral ring of the adhesive surface of the single protective film is pasted on the step of the camera assembly. After the protective film is attached, the upper layer cover of the adhesive packaging film is arranged above the camera component, so that the process of attaching the protective film and packaging the camera component is completed.
In the process of sticking the protective film, the sharp parts of the tweezers are easy to collide with the sapphire lens and the metal ring because the tweezers are poked into the step from the back of the camera module, so that the camera module product is scratched. Meanwhile, the tweezers press the protective film in a single-point mode, so that the bonding firmness of the protective film is poor. Therefore, the mode has low efficiency and low film pasting qualification rate.
There is therefore a need in the art for a new method and apparatus for applying a protective film to a camera assembly.
The prior patent CN201620806411.4 of the inventor provides a glass film sticking jig, which comprises a film sticking base, wherein a film sticking groove for bearing rectangular glass is arranged on the film sticking base, the film sticking groove is provided with two adjacent positioning edges for positioning the rectangular glass, and a plurality of vacuum through holes for connecting with a vacuum device are arranged in the film sticking groove; the film sticking jig further comprises at least two positioning blocks which are arranged on the film sticking groove and used for positioning rectangular glass, the two positioning blocks are respectively arranged opposite to the two positioning edges, and the top surfaces of the positioning blocks are protruded above the bottom surface of the film sticking groove, so that the rectangular glass is fixedly arranged in the film sticking groove through the two positioning edges and the at least two positioning blocks. The glass film sticking jig provided by the patent positions glass products through the two positioning edges and the adjustable positioning block, has a good clamping effect, is simple to operate, can be suitable for film sticking of glass products of different models, and is convenient to assemble and disassemble, high in production efficiency and low in production cost. However, the apparatus and method are only suitable for vacuum lamination of a whole film on, for example, a mobile phone panel, but are not suitable for small-sized products such as a camera module, which can rather reduce the lamination efficiency when the vacuum lamination method is used for lamination of individual films. There remains a need in the art for a new method and apparatus for applying protective films to camera modules.
Disclosure of Invention
Therefore, the invention aims to provide a method and a device for simultaneously pasting protective films on a plurality of camera modules.
The invention provides a method for sticking a protective film to camera modules, which comprises the following steps that step L, a plurality of camera modules are simultaneously adsorbed and fixed on a carrier plate A from a plurality of product grooves of a containing box in a vacuum way, and each camera module is fixed on one product grade of the carrier plate A; step M, vacuum adsorbing and fixing the whole protective film containing a plurality of single protective films on a carrier plate B, wherein the carrier plate B is directly and simultaneously attracted with the plurality of single protective films, and tearing off a release film of the whole protective film, and each single protective film is fixed on a boss of the carrier plate B; steps L and M may be performed simultaneously or optionally sequentially; and step N, the carrier plate A and the carrier plate B after the steps L and M are aligned and pressed, so that the camera component and the single protective film are aligned and laminated.
In the present invention, the radial cross-sectional shape of the metal ring 01 is not limited, and is, for example, circular, elliptical, square, or kidney-shaped. Accordingly, the glass sheet and the protective film are generally circular, oval, square, or kidney-shaped in shape. Correspondingly, the annular step can also be in the shape of a circular ring, an elliptical ring, a square ring or a waist-shaped ring. The shape of the boss can be any shape such as a circle, an ellipse, a square or a waist.
In a specific embodiment, the camera component comprises a metal ring (01) and a glass sheet (02), wherein an annular step (011) protruding towards the radial inner side is arranged in an inner through hole of the metal ring, the glass sheet (02) is fixedly arranged at one axial end of the annular step in the metal ring, and the protective film is required to be attached at the other axial end of the annular step in the metal ring and is used for protecting the back surface of the glass sheet (02);
the method for sticking the protective film comprises the following steps:
step L, fixing a plurality of camera assemblies on a carrier plate A, wherein the steps include steps L1 and L2 in sequence;
l1: placing a plurality of camera assemblies in a plurality of product grooves (11) of the accommodating box (1), wherein the front surface of each camera assembly, namely the front surface of the glass sheet (02), faces upwards;
l2: vacuum-adsorbing a plurality of camera assemblies in the accommodating box (1) by using a carrier plate A (2), wherein each product position (21) on the carrier plate A (2) comprises a central hole A (22) for vacuum-adsorbing the front surface of a glass sheet (02), the radial dimension of the central hole A (22) is smaller than the radial dimension of the glass sheet (02), and the plurality of camera assemblies are adsorbed and fixed in the product position (21) of the carrier plate A (2);
step M, fixing the protective film on the carrier plate B;
the support plate B (3) comprises a plurality of bosses (31), and each boss (31) comprises a central hole B (32) for vacuum adsorption of the whole protective film (08); the whole protective film comprises a whole release film (081) and a plurality of single protective films (082) distributed on the release film, one surface of the single protective film is non-sticky, namely the exposed surface of the single protective film is used for being adsorbed on the carrier plate B, and the other surface of the single protective film, namely the sticky surface of the single protective film is fixed on the release film; the radial dimension of the central hole B (32) is smaller than that of the single protective film (082), the carrier plate B (3) is used for vacuum adsorption of the exposed surfaces of the single protective films, and the process of simultaneously fixing the single protective films on the carrier plate B is completed after the whole release film is torn off from the adhesive surface of the carrier plate B;
step N, aligning and laminating;
after the steps L and M are completed, the carrier plate A and the carrier plate B are in alignment and sleeved, and the radial dimension of a boss (31) on the carrier plate B is smaller than the radial dimension of a back hole (013) of the camera module, so that a single protective film is inserted into a step in the corresponding metal ring on the back of the camera module; and removing the vacuum of the carrier plate B, and then taking down the carrier plate B, wherein the camera component with the protective film attached is sucked on the carrier plate A in vacuum.
In a specific embodiment, the glass sheet is a sapphire sheet.
In a specific embodiment, in step L1, the plurality of camera modules are respectively clamped into the plurality of product grooves (11) of the accommodating box by tweezers, or the plurality of camera modules are simultaneously dropped into the plurality of product grooves of the accommodating box.
In a specific embodiment, the carrier plate A and the carrier plate B are connected with vacuum pipelines with valves; preferably, the number of the product grades on the carrier a and the number of the bosses on the carrier B are both 5 or more, more preferably 10 or more, and most preferably 20 or more.
In a specific embodiment, in step L, the product site (21) is a concave acupoint on the carrier plate a, and a radial dimension d1 of the concave acupoint is greater than a radial maximum dimension d2 of the camera assembly; in the step M, the radial dimension of the boss (31) is consistent with the radial dimension of the single protective film.
In a specific embodiment, in step L2, the carrier plate a connected with the vacuum tube is firstly reversely buckled on the accommodating box provided with the camera component, the vacuum is turned on to enable the camera component to be adsorbed on the carrier plate a in vacuum, the carrier plate a and the accommodating box are integrally turned over, the camera component is firmly adsorbed by the vacuum of the carrier plate a, and the accommodating box is taken down from the upper part of the camera component when vacuum pumping is kept.
In a specific embodiment, a blocking adhesive layer is adhered to the radial center position of the adhesive surface of the single protective film, the radial dimension of the blocking adhesive layer is smaller than the radial dimension of the film body of the single protective film, so that only the peripheral ring of the single protective film on the whole protective film is adhered to the release film, and after the release film is torn off in the step N and aligned and attached, the blocking adhesive layer can prevent the adhesive surface of the single protective film from being attached to the back surface of the glass sheet.
In a specific embodiment, after step N, further includes step S, packaging: the method comprises the steps that the adhesive surface of an adhesive packaging film, namely the upper surface of the lower layer of the adhesive packaging film, is attached to a camera component, on which a protective film is attached, on a carrier plate A, the carrier plate A and the lower layer of the adhesive packaging film are integrally turned over, so that the lower surface of the lower layer of the adhesive packaging film is placed on a platform, after vacuum of the carrier plate A is removed, a metal ring on the back of the camera component is attached to the adhesive packaging film, and the front of the camera component is covered with the upper layer of the adhesive packaging film, namely packaging of the camera component after the protective film is attached is completed.
The invention also provides a device for sticking the protective film to the camera component, which comprises a containing box (1), a carrier plate A (2) and a carrier plate B (3),
the accommodating box (1) is provided with a plurality of product grooves (11) for accommodating a plurality of camera modules, and the radial size of the product grooves (11) is matched with the radial size of a metal ring in the camera modules;
the carrier plate A (2) is provided with a plurality of product grades (21), each product grade (21) comprises a central hole A (22), the carrier plate A also comprises at least one vacuum inlet A (23) which is communicated with the central holes A (22) and is used for vacuum adsorption of the front surface of a glass sheet (02) in the camera assembly so as to fix the camera assembly on the carrier plate A, and the radial dimension of the central holes A (22) is smaller than the radial dimension of the glass sheet (02);
the support plate B (3) comprises a plurality of bosses (31), each boss (31) comprises a central hole B (32) for vacuum adsorption of the whole protective film, and the support plate B further comprises at least one vacuum inlet B communicated with the central holes B (32); after the whole protective film is torn off, the carrier plate B (3) is used for vacuum adsorption and fixing of a plurality of single protective films, the radial dimension of the central hole B (32) is smaller than that of the single protective film, and the radial dimension of the boss (31) on the carrier plate B is smaller than that of the back hole (013) of the camera module; therefore, when the carrier plate A and the carrier plate B are in alignment and pressing, the single protective film can be abutted against the step inside the metal ring of the corresponding camera assembly on the back of the camera assembly.
In a specific embodiment, the non-para-position pressing surfaces of the carrier plate A (2) and the carrier plate B (3) are provided with handles; preferably, the number of the product grades on the carrier a and the number of the bosses on the carrier B are both 5 or more, more preferably 10 or more, and most preferably 20 or more.
In a specific embodiment, the size of the carrier plate A (2), the number and the positions of the product positions (21) are matched with the accommodating box (1) and the carrier plate B (3); preferably, the device further comprises an adhesive packaging film, and the adhesive packaging film is sized to match the carrier plate a (2).
The invention has at least the following beneficial effects:
1. the device provided by the invention uses the containing box to finish part of functions of the adhesive packaging film in the prior art, so that the camera component is easier to take and place in the carrying and inspection processes of the adhesive packaging film, and foreign matters and dust are not easy to adhere; the accommodating box is easy to clean after being polluted. The probability of poor film sticking of the camera component can be greatly reduced, and the product yield is improved.
2. According to the invention, the matched accommodating box, the carrier plate A and the carrier plate B are used for sticking the protective films to the camera assemblies, so that a plurality of camera assemblies can be stuck in batches at one time, and the film sticking efficiency is greatly improved. Taking 50 one-time lamination as an example in the embodiments of fig. 2 to 10, the single average lamination time (until packaging is completed) of the protective film can be reduced from 7S to 0.8S, and the lamination efficiency is improved by 8.75 times.
3. The positions among a plurality of camera modules which are manually stuck on the adhesive packaging film used in the prior art are disordered, and the positions among a plurality of camera modules which are stuck with the protective film and stuck on the adhesive packaging film for shipment can be tidy and uniform.
4. According to the invention, the sharp tools such as tweezers are completely prevented from being poked into the step inside the metal ring, the scratch caused by the sharp tools can be reduced or avoided, and the quality of the camera component is improved.
5. The invention greatly reduces the chance of contact between the hands of the operator and the product, thereby reducing the risk of dirt brought to the product by manual operation and improving the quality of the product.
6. According to the invention, the convex tables on the carrier plate B apply uniform force to the annular surface contact generated by the attachment of the protective film to the step, so that the protective film is not easy to fall off by changing the point contact mode of the attachment of tweezers in the prior art, and the qualification rate of the protective film attachment is greatly improved.
Drawings
Fig. 1 is a schematic view illustrating the structure and adhesion of a camera module and a protective film according to the present invention.
Fig. 2 is a schematic structural view of the whole protective film used in the present invention.
Fig. 3 is a schematic perspective view of a housing box according to the present invention.
Fig. 4 is a schematic top view of the accommodating box.
Fig. 5 is a schematic perspective view of a carrier a.
Fig. 6 is a schematic top view of the carrier a.
Fig. 7 is a schematic side view of the carrier a.
Fig. 8 is a schematic perspective view of a carrier B.
Fig. 9 is a schematic side view of the carrier B.
Fig. 10 is a schematic diagram of alignment and nesting of the carrier a and the carrier B.
Detailed Description
As shown in the figure, the characteristics of the metal ring, the glass sheet and the protective film in the device are all round, and the steps are also corresponding to be round.
In the present invention, the adhesive surface of the protective film is adhesive over the entire surface or only a part of the area (peripheral annular area) thereof. Because the adhesive surface of the protective film has only its peripheral annular portion for engaging the step, the central portion of the adhesive surface may be provided without adhesive or with a blocking layer to block the adhesive from the original central portion to avoid the adhesive from the central portion from adhering to the back surface of the glass sheet, thereby leaving the back surface of the protective film soiled with adhesive. The exposed surface of the protective film can be provided with a handle, so that in the subsequent process, when the protective film has completed its service life, the protective film can be easily clamped from the camera component by tweezers; the exposed surface of the protective film is also not provided with a handle, so that the protective film can be removed by vacuum adsorption and other methods when the subsequent protective film has completed its service life.
In the step L1, the camera modules are clamped into the accommodating boxes (plastic sucking boxes) one by using tweezers, and through holes are not formed in the accommodating boxes, so that the camera modules arranged in the accommodating boxes are clean and tidy and fixed in position. In step L2, the carrier plate a adsorbs and fixes the plurality of camera modules, and applies force to separate the plurality of camera modules from the accommodating box.
In a specific embodiment, the carrier plate a and the carrier plate B are both connected with a vacuum pipeline, and a valve is arranged on the vacuum pipeline to control the opening and closing of the vacuum.
In one embodiment, an operator holds the carrier a and holds the carrier B by one hand, and performs alignment and lamination between the carrier a and the carrier B to perform the lamination process of step N.
The method for simultaneously pasting the protective films on the plurality of camera assemblies breaks through the traditional pure manual single camera protective film pasting process, and adopts 3-4 jigs to carry out batch and assembly line pasting of the protective films. The process can be widely applied to film pasting processes of a protective film with a handle and film pasting processes of a protective film without a handle. The process can reduce manual operation and collision of sharp tools such as tweezers to the camera assembly, so that poor appearance of the camera assembly can be obviously reduced and the material utilization rate can be improved. Meanwhile, the invention can greatly improve labor production efficiency, greatly reduce production cost and promote enterprise competitiveness.
In the present invention, the accommodating box 1 is specifically designed for the transportation and transfer of the camera module, and the accommodating box 1 is, for example, a plastic sucking box, and can realize the functions without any vacuum component. The size of the accommodating box 1, the number and the positions of the product grooves 11 are matched with those of the carrier plate A.
In the invention, the carrier plate A is used for simultaneously vacuum adsorbing and fixing a plurality of camera modules, and the size, the number and the positions of the product grades 21 of the carrier plate A are matched with the accommodating box 1 and the carrier plate B. The product grade 21 is a concave acupoint on the carrier plate A, and the diameter d1 of the concave acupoint is larger than the outer diameter d2 of the camera module, so that when the glass sheet on the front surface of the camera module is adsorbed on the carrier plate A in vacuum, the outer diameter of the front end of the camera module and the product grade 21 are loosely arranged in the radial direction. When the support plate A is used, the support plate A connected with the vacuum tube is reversely buckled on the accommodating box provided with the camera component, vacuum is opened, the support plate A and the accommodating box are integrally turned over, for example, 180 degrees is turned over, the camera component is firmly adsorbed by the vacuum of the support plate A, and the accommodating box is taken down. The carrier plate a adsorbs a sapphire surface in the camera assembly, namely the front surface of the camera assembly, and the back surface (to-be-attached surface) of the camera component faces outwards.
In the invention, the carrier plate B is used for carrying the whole protective film and a plurality of single protective films in sequence. As described above, the size of the carrier B, the number and the positions of the bosses 31 are all matched with the carrier a. The diameter of the boss 31 is identical to the outer diameter of the single protective film. The carrier plate B is used for positioning and vacuum-adsorbing the whole protective film, wherein the non-adhesive surface of each single protective film, namely the exposed surface (for example, the handle surface of the protective film with a handle) is vacuum-adsorbed on the carrier plate B, and the release film is torn off to expose the adhesive surface of the single protective film.
In the process of film pasting (alignment pasting) of the invention: and positioning and sleeving the carrier plate A adsorbed with the plurality of camera modules and the carrier plate B adsorbed with the plurality of single protective films by pins. At this time, the adhesive surface of the protective film is attached to the surface to be attached (on the step) of the camera module. And turning off the negative pressure (vacuum) of the carrier plate B, taking out the carrier plate B, and attaching the single protective film on the camera component of the carrier plate A in an aligned manner.
As known to those skilled in the art, the commercially available adhesive packaging film is divided into an upper layer and a lower layer, the upper layer is provided with no adhesive on both sides, the upper surface of the lower layer contains an adhesive with strong adhesive force (the adhesive cannot remain on the camera assembly), the adhesive can be used for adhering the front surface or the back surface of the camera assembly, and the lower surface of the lower layer does not contain the adhesive. After the plurality of camera modules are adhered to the lower layer, the camera modules are covered with an upper transparent film and positions without modules between the upper layer and the lower layer are adhered tightly.
The size of the adhesive packaging film is matched with that of the carrier plate A. In the invention, the adhesive packaging film is only used in the packaging step after film pasting, and can firmly adhere to the camera component product to prevent sliding during carrying. However, in the process of manually sticking the protective film in the prior art, an adhesive packaging film is also used during film sticking, and dust, foreign matters and the like are easy to adhere to the adhesive packaging film during film sticking, so that the qualification rate of the camera component product for sticking the protective film is affected.
According to practical inspection, the method and the device provided by the invention have the advantages that the production efficiency and the product quality of the camera component for sticking the protective film are greatly improved, and great contribution is made to the aspects of controlling the production cost, improving the labor efficiency and improving the customer satisfaction.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. The method for attaching the protective film to the camera module is characterized by comprising the following steps of enabling a plurality of camera modules to be simultaneously adsorbed and fixed on a carrier plate A from a plurality of product grooves (11) of a containing box (1) in a vacuum manner, and enabling each camera module to be fixed on one product position (21) of the carrier plate A; step M, vacuum adsorbing and fixing the whole protective film containing a plurality of single protective films on a carrier plate B, wherein the carrier plate B is directly and simultaneously attracted with the plurality of single protective films, and tearing off a release film of the whole protective film, and each single protective film is fixed on a boss (31) of the carrier plate B; steps L and M are performed simultaneously or optionally sequentially; and step N, carrying board A and carrying board B after step L and M are aligned and pressed, so that the camera component is aligned and laminated with the single protective film;
the camera component comprises a metal ring (01) and a glass sheet (02), wherein an annular step (011) protruding towards the radial inner side is arranged in an inner through hole of the metal ring, the glass sheet (02) is fixedly arranged at one axial end of the annular step in the metal ring, and the protective film is required to be attached to the other axial end of the annular step in the metal ring and is used for protecting the back surface of the glass sheet (02);
the method for sticking the protective film to the camera component comprises the following steps:
step L, fixing a plurality of camera assemblies on a carrier plate A, wherein the steps include steps L1 and L2 in sequence;
l1: placing a plurality of camera assemblies in a plurality of product grooves (11) of the accommodating box (1), wherein the front surface of each camera assembly, namely the front surface of the glass sheet (02), faces upwards;
l2: vacuum-adsorbing a plurality of camera assemblies in the accommodating box (1) by using a carrier plate A (2), wherein each product position (21) on the carrier plate A (2) comprises a central hole A (22) for vacuum-adsorbing the front surface of a glass sheet (02), the radial dimension of the central hole A (22) is smaller than the radial dimension of the glass sheet (02), and the plurality of camera assemblies are adsorbed and fixed in the product position (21) of the carrier plate A (2);
step M, fixing the protective film on the carrier plate B;
the support plate B (3) comprises a plurality of bosses (31), and each boss (31) comprises a central hole B (32) for vacuum adsorption of the whole protective film (08); the whole protective film comprises a whole release film (081) and a plurality of single protective films (082) distributed on the release film, one surface of the single protective film is non-sticky, namely the exposed surface of the single protective film is used for being adsorbed on the carrier plate B, and the other surface of the single protective film, namely the sticky surface of the single protective film is fixed on the release film; the radial dimension of the central hole B (32) is smaller than that of the single protective film (082), the carrier plate B (3) is used for vacuum adsorption of the exposed surfaces of the single protective films, and the process of simultaneously fixing the single protective films on the carrier plate B is completed after the whole release film is torn off from the adhesive surface of the carrier plate B;
step N, aligning and laminating;
after the steps L and M are completed, the carrier plate A and the carrier plate B are in alignment and sleeved, and the radial dimension of a boss (31) on the carrier plate B is smaller than the radial dimension of a back hole (013) of the camera module, so that a single protective film is inserted into a step in the corresponding metal ring on the back of the camera module; removing the vacuum of the carrier plate B, and then taking down the carrier plate B, wherein the camera component with the protective film attached is sucked on the carrier plate A in vacuum;
in the step L, the product position (21) is a concave acupoint on the carrier plate a, and the radial dimension d1 of the concave acupoint is larger than the radial maximum dimension d2 of the camera assembly; in the step M, the radial dimension of the boss (31) is consistent with the radial dimension of the single protective film; in step L2, the support plate A connected with the vacuum tube is firstly reversely buckled on the accommodating box provided with the camera component, the vacuum is turned on to enable the camera component to be adsorbed on the support plate A in a vacuum way, the support plate A and the accommodating box are integrally turned over, the camera component is firmly adsorbed by the vacuum of the support plate A, and the accommodating box is taken down from the upper side of the camera component when the vacuum pumping is kept.
2. The method for attaching a protective film to a camera module according to claim 1, wherein in step L1, the plurality of camera modules are respectively clamped into the plurality of product grooves (11) of the housing box by tweezers, or the plurality of camera modules are simultaneously dropped into the plurality of product grooves (11) of the housing box.
3. The method for sticking a protective film on a camera module according to claim 1, wherein the carrier plate A and the carrier plate B are connected with vacuum pipelines with valves, and the glass sheet is a sapphire sheet; the number of the product grades on the carrier plate A and the number of the bosses on the carrier plate B are more than 5.
4. The method for sticking a protective film on a camera module according to claim 1, wherein the number of product grades on the carrier plate a and the number of bosses on the carrier plate B are both more than 10.
5. The method for attaching a protective film to a camera module according to claim 1, wherein the number of product grades on the carrier plate a and the number of bosses on the carrier plate B are both more than 20.
6. The method for attaching a protective film to a camera module according to claim 2, wherein a blocking adhesive layer is adhered to a radial center position on the adhesive surface of the single protective film, and the radial dimension of the blocking adhesive layer is smaller than the radial dimension of the film body of the single protective film, so that only the peripheral ring of the single protective film on the whole protective film is adhered to the release film, and after the release film is torn off in the step N and attached in an aligned manner, the blocking adhesive layer can prevent the adhesive surface of the single protective film from being attached to the back surface of the glass sheet.
7. The method for attaching a protective film to a camera module according to any one of claims 1 to 6, further comprising, after step N, step S of packaging: the method comprises the steps that the adhesive surface of an adhesive packaging film, namely the upper surface of the lower layer of the adhesive packaging film, is attached to a camera component, on which a protective film is attached, on a carrier plate A, the carrier plate A and the lower layer of the adhesive packaging film are integrally turned over, so that the lower surface of the lower layer of the adhesive packaging film is placed on a platform, after vacuum of the carrier plate A is removed, a metal ring on the back of the camera component is attached to the adhesive packaging film, and the front of the camera component is covered with the upper layer of the adhesive packaging film, namely packaging of the camera component after the protective film is attached is completed.
8. The apparatus for applying a protective film to a camera module according to the method for applying a protective film to a camera module of claim 7,
the device for sticking the protective film to the camera component comprises a containing box (1), a carrier plate A (2) and a carrier plate B (3),
the accommodating box (1) is provided with a plurality of product grooves (11) for accommodating a plurality of camera modules, and the radial size of the product grooves (11) is matched with the radial size of a metal ring in the camera modules;
the carrier plate A (2) is provided with a plurality of product grades (21), each product grade (21) comprises a central hole A (22), the carrier plate A also comprises at least one vacuum inlet A (23) which is communicated with the central holes A (22) and is used for vacuum adsorption of the front surface of a glass sheet (02) in the camera assembly so as to fix the camera assembly on the carrier plate A, and the radial dimension of the central holes A (22) is smaller than the radial dimension of the glass sheet (02);
the support plate B (3) comprises a plurality of bosses (31), each boss (31) comprises a central hole B (32) for vacuum adsorption of the whole protective film, and the support plate B further comprises at least one vacuum inlet B communicated with the central holes B (32); after the whole protective film is torn off, the carrier plate B (3) is used for vacuum adsorption and fixing of a plurality of single protective films, the radial dimension of the central hole B (32) is smaller than that of the single protective film, and the radial dimension of the boss (31) on the carrier plate B is smaller than that of the back hole (013) of the camera module; therefore, when the carrier plate A and the carrier plate B are in alignment and pressing, the single protective film can be abutted against the step inside the metal ring of the corresponding camera assembly on the back of the camera assembly.
9. The device for attaching a protective film to a camera module according to claim 8, wherein handles are arranged on non-alignment pressing surfaces of the carrier plate a (2) and the carrier plate B (3); the number of the product grades on the carrier plate A and the number of the bosses on the carrier plate B are more than 5.
10. The device for attaching a protective film to a camera module according to claim 8, wherein the number of product grades on the carrier plate a and the number of bosses on the carrier plate B are both more than 10.
11. The device for attaching a protective film to a camera module according to claim 8, wherein the number of product grades on the carrier plate a and the number of bosses on the carrier plate B are both more than 20.
12. The device for attaching a protective film to a camera module according to claim 8, wherein the size of the carrier plate a (2), the number and the positions of the product positions (21) are matched with the accommodating box (1) and the carrier plate B (3); the device further comprises an adhesive packaging film, and the adhesive packaging film is matched with the carrier plate A (2) in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175186.8A CN108622456B (en) | 2017-03-22 | 2017-03-22 | Method and device for sticking protective film to camera component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710175186.8A CN108622456B (en) | 2017-03-22 | 2017-03-22 | Method and device for sticking protective film to camera component |
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| CN108622456A CN108622456A (en) | 2018-10-09 |
| CN108622456B true CN108622456B (en) | 2023-10-31 |
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| CN201710175186.8A Active CN108622456B (en) | 2017-03-22 | 2017-03-22 | Method and device for sticking protective film to camera component |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113510734B (en) * | 2020-04-10 | 2023-04-28 | Oppo（重庆）智能科技有限公司 | Protective film assembly, grabbing device and grabbing system thereof |
| CN113021864A (en) * | 2021-02-25 | 2021-06-25 | 深圳市磐锋精密技术有限公司 | Mobile phone lens protective cover plastic film laminating device and laminating process |
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| CN108622456A (en) | 2018-10-09 |
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