Protective film roll material of fingerprint module and protective film attaching jig

Abstract

The utility model discloses a protective film roll material of a fingerprint module and a protective film attaching jig. The protective film roll material comprises a protective film and a release paper roll material, the protective film is electrostatically adsorbed or bonded on the release paper roll material through the back surface, and a double-faced adhesive tape is arranged on the front surface; a plurality of first through holes are formed in the release paper roll material, and alignment marks are arranged on the release paper roll material. The protective film attaching jig comprises a base, an upper cover and an air supply device, the base is used for placing the fingerprint module; the first side wall of the upper cover is provided with a feeding port aiming at a protective film roll material. A corresponding discharge hole is formed in a second side wall opposite to the first side wall; a plurality of second through holes are formed in the upper cover surface; and the air supply device is used for supplying air to the second through hole after the release paper roll material is aligned until the protective film is separated from the release paper roll material and is adhered to the fingerprint module. Therefore, not only can the attaching efficiency of the protective film be effectively improved, but also the alignment accuracy and consistency of the protective film can be improved, and the attaching reliability of the protective film is ensured.

Description

Technical Field

[0001] This application relates to the technical field of fingerprint module manufacturing, and particularly to a protective film roll material for a fingerprint module and a protective film attaching fixture. Background Art

[0002] A fingerprint module is a module used to implement fingerprint recognition and collection in a fingerprint lock or intelligent device. Before the fingerprint module is shipped and packaged, it is necessary to attach a protective film to its surface to protect it from dust contamination and scratches. In related technologies, the protective film is attached manually, which has certain drawbacks. Not only is the efficiency low, but it is also prone to misalignment and low reliability. Therefore, how to provide a protective film roll material for a fingerprint module and a protective film attaching fixture that can improve the efficiency and reliability of protective film attachment has become an urgent problem in the industry. Summary of the Invention

[0003] In order to solve at least one problem existing in the prior art, the purpose of this application is to provide a protective film roll material for a fingerprint module and a protective film attaching fixture, which can not only effectively improve the efficiency of protective film attachment, but also improve the accuracy and consistency of protective film alignment, and ensure the reliability of protective film attachment.

[0004] To achieve the above purpose, the protective film roll material for a fingerprint module provided by this application includes at least one protective film and a release paper roll material; wherein,

[0005] The protective film is electrostatically adsorbed and / or adhered to the release paper roll material through its back surface; a double-sided adhesive is provided on the front surface of each protective film for bonding the protective film to a fingerprint module.

[0006] The release paper roll material includes a contact area corresponding to the protective film; a plurality of first through holes are opened at least in the contact area; and alignment marks are also provided on the release paper roll material.

[0007] Optionally, the plurality of first through holes are evenly distributed or nearly evenly distributed in the contact area.

[0008] Optionally, the aperture range of the first through holes is 0.1 mm - 0.3 mm; the hole density of the first through holes is 16 - 36 per square centimeter.

[0009] Optionally, the thickness range of the protective film is 0.12 mm - 0.14 mm.

[0010] Optionally, the thickness range of the release paper roll material is 0.04 mm - 0.06 mm.

[0011] To achieve the above object, the present application further provides a fixture for attaching a protective film to a fingerprint module, which applies the protective film roll material of the fingerprint module as described above. The fixture for attaching the protective film includes:

[0012] A base for placing the fingerprint module with the cover surface of the fingerprint module facing upward;

[0013] An upper cover including an upper cover surface and a side wall; wherein, on the first side wall, a feed port for the protective film roll material is provided; on the second side wall opposite to the first side wall, a corresponding discharge port is provided; and a plurality of second through holes are provided on the upper cover surface;

[0014] An air supply device for supplying air to the second through holes after alignment based on the alignment marks of the release paper roll material until the protective film detaches from the release paper roll material and adheres to the corresponding fingerprint module.

[0015] Optionally, the opening size range of the feed port and the discharge port in the thickness direction of the protective film roll material is 0.2 mm - 0.5 mm.

[0016] Optionally, the aperture range of the second through holes is 0.1 mm - 0.3 mm; the hole density of the second through holes is 16 - 36 per square centimeter.

[0017] Optionally, at least two fingerprint modules are placed in the first direction in the base so that the at least two fingerprint modules can attach the protective film simultaneously;

[0018] Wherein, the first direction is the feeding and discharging direction of the protective film roll material.

[0019] Optionally, at least two fingerprint modules are placed in the second direction in the base so that the at least two fingerprint modules can attach the protective film simultaneously;

[0020] Wherein, the second direction is different from the feeding and discharging direction of the protective film roll material.

[0021] A protective film roll material and a protective film attaching fixture for a fingerprint module of the present application. By placing the fingerprint module into the base of the attaching fixture with the cover plate of the fingerprint module facing upwards; and by providing corresponding inlet and outlet ports on the upper cover, one end of the protective film roll material can pass through the inlet port on the first side wall and the outlet port on the second side wall; and based on the alignment marks of the release paper roll material, the protective film is aligned with the fingerprint module. Then, by supplying air above the upper cover through an air supply device, the air flow passes through a number of second through holes on the upper cover surface, and the positive air pressure acts on the protective film exposed in a number of first through holes until the protective film on the release paper roll material is separated from the release paper roll material; and is adhered to the cover plate of the aligned fingerprint module through the double-sided adhesive on the front. Thus, not only can the efficiency of protective film attachment be effectively improved, but also the accuracy and consistency of protective film alignment can be improved, ensuring the reliability of protective film attachment.

[0022] Other features and advantages of the present application will be described in the following specification, and in part, will be obvious from the specification, or will be understood by implementing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and together with the embodiments of the present application, are used to explain the present application, and do not constitute a limitation to the present application. In the drawings:

[0024] Figure 1 Schematic structural diagram of the release paper roll material of the protective film roll material according to an embodiment of the present application;

[0025] Figure 2 Schematic structural diagram of the back surface of the protective film of the protective film roll material according to an embodiment of the present application;

[0026] Figure 3 is Figure 2 Schematic structural diagram of the front surface of the protective film of the protective film roll material in

[0027] Figure 4 Schematic structural diagram of the protective film attaching fixture according to an embodiment of the present application;

[0028] Figure 5 Schematic diagram of the protective film attachment by the protective film attaching fixture according to an embodiment of the present application.

[0029] Among them, specifically include the following reference numerals:

[0030] Protective film roll material 100; Protective film 110; Double-sided adhesive 111; Release paper roll material 120; Contact area 121; First through hole 122; Alignment mark 123;

[0031] Protective film attaching fixture 300; base 310; upper cover 320; upper cover surface 321; first side wall 322; feeding port 323; second side wall 324; discharging port 325; second through hole 326. Detailed implementation manners

[0032] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present application. It should be understood that the drawings and embodiments of the present application are only for exemplary purposes and are not used to limit the protection scope of the present application.

[0033] As used herein, the term "including" and its variants are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0034] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0035] Embodiment 1

[0036] As Figures 1-3 shown, the protective film roll stock 100 of the fingerprint module includes: at least one protective film 110 and a release paper roll stock 120.

[0037] Among them, the protective film 110 is disposed on the release paper roll stock 120. A double-sided adhesive 111 is provided on the front surface of each protective film 110 for bonding the protective film 110 to a fingerprint module (not shown in the figure). Specifically, the fingerprint module includes a cover plate disposed on the upper surface, and the protective film 110 is bonded to the cover plate of the corresponding fingerprint module.

[0038] In one example, the protective film 110 can be positioned on the release paper roll stock 120 by electrostatic adsorption on the back surface. In another example, the protective film 110 can be bonded to the release paper roll stock 120 by adhesion on the back surface. In still another example, the protective film 110 can be positioned on the release paper roll stock 120 by electrostatic adsorption and slight adhesion on the back surface.

[0039] The release paper roll material 120 includes a contact area 121 corresponding to the protective film 110, and the contact area 121 is the area where the release paper roll material 120 contacts and overlaps with the protective film 110. At least a plurality of first through holes 122 are formed in the contact area 121. A registration mark 123 is further provided on the release paper roll material 120 to ensure the registration of the protective film 110 and the fingerprint module during the attachment process.

[0040] It should be noted that generally, a plurality of protective films 110 are provided on the release paper roll material 120, and at least a part of the plurality of protective films 110 is arranged along the rolling extension direction of the release paper roll material 120.

[0041] By applying the protective film roll material 100 of the fingerprint module according to the embodiment of the present application, air can be injected on the side of the release paper roll material 120 away from the protective film 110, and the positive pressure acts on the protective film 110 exposed in the plurality of first through holes 122, so that the protective film 110 on the release paper roll material 120 is separated from the release paper roll material 120 and adhered to the cover plate of the corresponding fingerprint module through the double-sided tape 111 on the front side.

[0042] Optionally, the plurality of first through holes 122 are evenly distributed or nearly evenly distributed in the contact area 121 to improve the reliability of attachment.

[0043] Optionally, the aperture range of the first through holes 122 is 0.1 mm - 0.3 mm; the hole density of the first through holes 122 is 16 - 36 per square centimeter, so as to balance the reliability of the adsorption and positioning of the protective film 110 on the release paper roll material 120 before attachment and the reliability of attachment.

[0044] In a specific example, the thickness range of the protective film 110 is 0.12 mm - 0.14 mm; the thickness range of the release paper roll material 120 is 0.04 mm - 0.06 mm.

[0045] Embodiment 2

[0046] As Figures 4-5 shown, the protective film attachment jig 300 of the fingerprint module applies the protective film roll material 100 of the fingerprint module in the above embodiment. The protective film attachment jig 300 includes: a base 310, an upper cover 320, and a gas supply device (not shown in the figure).

[0047] The base 310 is used to place the fingerprint module, and the cover plate surface of the fingerprint module faces upward.

[0048] The upper cover 320 includes an upper cover surface 321 and a side wall; wherein, on the first side wall 322, a feed port 323 for the protective film roll material 100 is formed; on the second side wall 324 opposite to the first side wall 322, a corresponding discharge port 325 is formed; and a plurality of second through holes 326 are formed on the upper cover surface 321.

[0049] An air supply device is used to supply air to the second through holes 326 after alignment based on the alignment marks 123 of the release paper coil 120 until the protective film 110 is separated from the release paper coil 120 and adhered to the corresponding fingerprint module.

[0050] When applying the protective film attaching jig for the fingerprint module of the embodiment of the present application, place the fingerprint module on the base 310 of the attaching jig with the cover plate surface of the fingerprint module facing upward. And pass one end of the protective film coil 100 through the feed port 323 of the first side wall 322 and the discharge port 325 of the second side wall 324 (the protective film 110 on the protective film coil 100 faces downward). Then, based on the alignment marks 123 of the release paper coil 120, align the protective film 110 with the fingerprint module (specifically, when the alignment mark 123 coincides with the edge of the discharge port 325, it is determined that the alignment state is achieved). Then supply air above the upper cover 320 through the air supply device, so that the air flow passes through a plurality of second through holes 326 on the upper cover surface 321, and the positive air pressure acts on the protective film 110 exposed in a plurality of first through holes 122 until the protective film 110 on the release paper coil 120 is separated from the release paper coil 120 and adhered to the cover plate of the aligned fingerprint module through the double-sided tape 111 on the front side. Then, by opening the upper cover 320, take out the fingerprint module with the applied film, that is, the attachment of the protective film 110 of the fingerprint module is realized. After that, other fingerprint modules to be attached with film can be placed, and the movement of the protective film coil 100 towards the discharge port 325 can be controlled to perform the alignment and air pressure attachment in the next cycle. Thus, not only can the efficiency of the protective film attachment be effectively improved, but also the accuracy and consistency of the protective film alignment can be improved, ensuring the reliability of the protective film attachment.

[0051] Optionally, the opening size range of the feed port 323 and the discharge port 325 in the thickness direction of the protective film coil 100 is 0.2 mm - 0.5 mm, so as to balance the smoothness of the loading and unloading of the protective film coil 100, gas saving and the reliability of the air pressure attachment.

[0052] Optionally, the aperture range of the second through holes 326 is 0.1 mm - 0.3 mm; the hole density of the second through holes 326 is 16 - 36 per square centimeter, so as to ensure the reliability and stability of the attachment.

[0053] Optionally, at least two fingerprint modules are placed in the base 310 in the first direction, so that the at least two fingerprint modules are simultaneously attached with the protective film 110. Among them, the first direction is the coil feeding and discharging direction of the protective film coil 100. That is, at least two fingerprint modules are placed in the coil feeding and discharging direction to further improve the attachment efficiency of the protective film 110.

[0054] Optionally, at least two fingerprint modules are placed in the base 310 in the second direction so that the at least two fingerprint modules simultaneously adhere to the protective film 110. Herein, the second direction is different from the feeding and discharging direction of the protective film roll 100. In a specific example, the second direction is perpendicular to the feeding and discharging direction of the protective film roll 100. It can be understood that, correspondingly, the protective film roll 100 is arranged with a corresponding number of protective films 110 along the second direction. Thereby, the adhesion efficiency of the protective film 110 can be further improved.

[0055] It should be noted that the concepts such as "first" and "second" mentioned in this application are only used to distinguish different structures or directions, and are not used to limit the order of functions performed by these structures or directions, or their interdependent relationships or relative importance.

[0056] It should be noted that the modifications of "one" and "multiple" mentioned in this application are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more"; "multiple" should be understood as two or more.

[0057] In the description of this application, it should be noted that the relationship between structures should be understood in a broad sense. For example, the orientation or positional relationship indicated by "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application.

[0058] It should be noted that in the drawings, for clarity, the dimensions of layers, regions, components and their relative dimensions may be exaggerated. Wherein, the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions.

[0059] Those of ordinary skill in the art can understand that the above are only the preferred embodiments of this application and are not used to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A protective film roll for a fingerprint module, characterized in that: The protective film roll includes at least one protective film and a release paper roll; wherein, The protective film is electrostatically adsorbed and / or bonded to the release paper roll through the back side; each protective film is provided with a double-sided adhesive on the front side, which is used to bond the protective film to a fingerprint module; The release paper roll includes a contact area corresponding to the protective film; at least a plurality of first through holes are opened on the contact area; and an alignment mark is also provided on the release paper roll.

2. The protective film roll according to claim 1, characterized in that: The plurality of first through holes are evenly distributed or nearly evenly distributed on the contact area.

3. The protective film roll according to claim 1, characterized in that: The aperture range of the first through holes is 0.1 mm-0.3 mm; the hole density of the first through holes is 16-36 per square centimeter.

4. The protective film roll according to claim 1, characterized in that: The thickness of the protective film ranges from 0.12 mm to 0.14 mm.

5. The protective film roll according to claim 1, characterized in that: The thickness of the release paper roll is in the range of 0.04 mm to 0.06 mm.

6. A protective film attaching jig for a fingerprint module, characterized in that: The protective film roll of the fingerprint module according to any one of claims 1 to 5 is used, and the protective film attaching jig comprises: A base, used to place the fingerprint module, with the cover of the fingerprint module facing upwards; The upper cover comprises an upper cover surface and side walls; wherein a feeding port for the protective film roll is provided on the first side wall; a corresponding discharge port is provided on the second side wall opposite to the first side wall; and a plurality of second through holes are provided on the upper cover surface; The air supply device is used to supply air to the second through hole after alignment based on the alignment mark of the release paper roll, until the protective film is separated from the release paper roll and adhered to the corresponding fingerprint module.

7. The protective film attaching jig according to claim 6, characterized in that: The opening size range of the feed port and the discharge port along the thickness direction of the protective film roll is 0.2mm-0.5mm.

8. The protective film attaching jig according to claim 6, characterized in that: The aperture range of the second through holes is 0.1 mm-0.3 mm; the hole density of the second through holes is 16-36 per square centimeter.

9. The protective film attaching jig according to claim 6, characterized in that: At least two fingerprint modules are placed in the base in a first direction, so that the at least two fingerprint modules are attached to the protective film at the same time; The first direction is the direction in which the protective film roll is fed in and out.

10. The protective film attaching jig according to claim 6, characterized in that: At least two fingerprint modules are placed in the base in the second direction, so that the at least two fingerprint modules are attached to the protective film at the same time; The second direction is different from the direction in which the protective film roll is fed and discharged.

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