Laminating roller, laminating jig and laminating method of flexible screen and bent cover plate
阅读说明:本技术 贴合辊、贴合治具及柔性屏与弯曲盖板的贴合方法 (Laminating roller, laminating jig and laminating method of flexible screen and bent cover plate ) 是由 石佳凡 陈立强 王作家 王青松 李刚 于 2019-10-18 设计创作,主要内容包括:本申请实施例提供了一种贴合辊、贴合治具及柔性屏与弯曲盖板的贴合方法。该贴合辊,包括:辊筒和贴合件;贴合件为弹性材质,贴合件具有第一底面、第二底面和周面;第二底面与辊筒的表面相贴合;第一底面包括主贴合面和端贴合面;主贴合面与第二底面平行,用于与弯曲盖板的底面主体相配合;端贴合面用于与弯曲盖板的底面端角相配合;端贴合面凸起于主贴合面;周面连接第一底面和第二底面;周面用于与弯曲盖板的弯曲面相配合。本申请实施例采用辊压式贴合,并优化了柔性屏的局部贴合顺序,改善柔性屏受力情况从而能实现柔性屏与弯曲盖板的充分贴合。(The embodiment of the application provides a laminating roller, a laminating jig and a laminating method of a flexible screen and a bent cover plate. This laminating roller includes: a roller and an attaching member; the attaching piece is made of elastic materials and is provided with a first bottom surface, a second bottom surface and a peripheral surface; the second bottom surface is attached to the surface of the roller; the first bottom surface comprises a main binding surface and an end binding surface; the main binding surface is parallel to the second bottom surface and is used for being matched with the bottom surface main body of the bent cover plate; the end binding surface is used for matching with the bottom surface end angle of the bent cover plate; the end binding surface is raised from the main binding surface; the circumferential surface is connected with the first bottom surface and the second bottom surface; the circumferential surface is used for matching with the bending surface of the bending cover plate. The embodiment of the application adopts roll-in type fitting, optimizes the local fitting sequence of the flexible screen, and improves the stress condition of the flexible screen, thereby realizing the sufficient fitting of the flexible screen and the bent cover plate.)
1. A laminating roller (500), comprising: a roller (510) and an attachment member (520);
the attaching piece (520) is made of elastic materials, and the attaching piece (520) is provided with a first bottom surface (520a), a second bottom surface (520b) and a peripheral surface (520 c);
the second bottom surface (520b) is attached to the surface of the roller (510);
the first bottom surface (520a) comprises a main abutting surface (520a1) and an end abutting surface (520a 2); the primary abutment surface (520a1) is parallel to the second bottom surface (520b) and is adapted to cooperate with a bottom surface main body (100a1) of a curved cover plate (100); the end abutting surface (520a2) is used for being matched with the bottom surface end corner (100a2) of the bent cover plate (100); the end abutment surface (520a2) is raised from the main abutment surface (520a 1);
the peripheral surface (520c) connects the first bottom surface (520a) and the second bottom surface (520 b); the circumferential surface (520c) is adapted to cooperate with a curved surface (100b) of the curved cover plate (100).
2. The laminating roller (500) according to claim 1, characterized in that the height of the end laminating surface (520a2) projecting above the main laminating surface (520a1) is H, 100 μ ι η ≦ H ≦ 150 μ ι η;
the end abutting surface (520a2) is a sector with the radius of 3 mm.
3. The laminating roller (500) according to claim 1, wherein the profile of the first bottom surface (520a) is recessed by 0.4mm to 0.7mm compared to the profile of the bottom surface of the curved cover plate (100);
the circumferential surface (520c) is an arc surface matched with the curved surface (100b) of the curved cover plate (100), and the arc radius of the circumferential surface (520c) is R1The arc radius of the curved surface (100b) of the curved cover plate (100) is R2,R2-R1=0.7mm。
4. The laminating roller (500) according to any one of claims 1-3, characterized in that the roller cylinder (510) has a vacuum chamber (510a), the vacuum chamber (510a) being used for connecting a vacuum device; the roller (510) is also provided with a vacuum channel, one end of the vacuum channel is communicated with the vacuum cavity (510a), and the other end of the vacuum channel is arranged at the surface of the roller (510) corresponding to the second bottom surface (520b) of the attaching piece (520);
the jointing piece (520) is provided with a plurality of adsorption holes (521), one end of each adsorption hole (521) is opened and communicated with the vacuum channel of the roller (510), and the other end of each adsorption hole is opened and arranged at the main jointing surface (520a1) or the end jointing surface (520a2) of the first bottom surface (520 a); the diameter of the adsorption hole (521) is 0.5 mm-1 mm.
5. The bonding roller (500) according to claim 4, wherein the openings of the suction holes (521) at the main bonding surface (520a1) of the first bottom surface (520a) are spaced apart from each other by a distance d in a longitudinal direction of the main bonding surface (520a1)1The distance between the main contact surface (520a1) in the width direction is d2,d1:d2=5:4;
Or, d1Is 25mm, d2Is 20 mm.
6. The laminating roller (500) according to claim 4, wherein the openings of the suction holes (521) at the end laminating surface (520a2) of the first bottom surface (520a) are at least 3 and are distributed near the vertex of the end laminating surface (520a 2).
7. The laminating roller (500) according to any one of claim 4, characterized in that the laminating roller (500) further comprises a heating member (522), the heating member (522) comprising an annular heating pipe (522a) and a plurality of strip-shaped heating pipes (522 b);
the fitting piece (520) is provided with an annular accommodating cavity and a plurality of strip-shaped accommodating cavities, the annular accommodating cavity is arranged along the edge of the fitting piece (520), and the strip-shaped accommodating cavities are arranged in an area defined by the annular accommodating cavities at intervals; the adsorption holes (521) are arranged between two adjacent strip-shaped containing cavities and/or between the annular containing cavity and the adjacent strip-shaped containing cavity;
the annular heating pipes (522a) are arranged in the annular accommodating cavities, and the strip-shaped heating pipes (522b) are arranged in the strip-shaped accommodating cavities in a one-to-one correspondence mode.
8. The utility model provides a laminating tool which characterized in that includes: a base (600), and a conformable roller (500) according to any of claims 1-7 above;
the base (600) is used for limiting the bent cover plate (100);
the attaching roller (500) is used for attaching the flexible screen (200) to the curved cover plate (100).
9. A method for attaching a flexible screen to a curved cover plate is characterized by comprising the following steps:
constraining a curved cover plate to the base in the bonding jig of claim 8;
restraining the flexible screen at the abutment of the abutment roller in the abutment jig of claim 8;
aligning the flexible screen on the fitting member of the fitting roller with the curved cover plate on the base;
one end of the flexible screen is attached to the corresponding end of the bent cover plate, and the attaching roller is driven to roll towards the other ends of the flexible screen and the bent cover plate along the base; in the rolling process, the end binding face of the binding piece of the binding roller tightly presses the corresponding part of the flexible screen and the bottom end corner of the bent cover plate.
10. The attaching method according to claim 9, wherein the restraining the flexible screen at the attaching member of the attaching roller in the attaching jig according to claim 8 comprises:
the main body part of the flexible screen is vacuum-adsorbed at the main binding surface of the binding piece, and the bent end corner of the flexible screen is vacuum-adsorbed at the end binding surface of the binding piece;
heating the flexible screen to a preset temperature.
Technical Field
The application relates to the technical field of laminating of flexible screens, in particular to a laminating roller, a laminating jig and a laminating method of a flexible screen and a bent cover plate.
Background
With the rapid development of display technologies, various types of display products are gradually emerging in people's lives. The curved surface display product has the advantages of better sense organ experience due to the curved surface screen, more comfortable wearing experience or better three-dimensional display effect due to the strong bending plasticity of the flexible curved surface screen, and the like, and is favored by more and more consumers.
The curved screen comprises a curved cover plate and a flexible screen which are attached to each other. As shown in fig. 1 and 2, the curved cover plate includes a bottom surface main body having a relatively small curvature, and a bottom surface end portion or end corner having a relatively large curvature. The flexible screen and the bottom surface main body of the bent cover plate correspond to each other and are main body parts, and the bending degree is small; the flexible screen is bent end parts or bent end angles corresponding to the bottom end parts or the end angles of the bent cover plate, and the bending degree is large.
The conventional curved screen production method generally includes, as shown in fig. 3, respectively limiting a flexible screen and a curved cover plate on two molds, and fitting the flexible screen and the curved cover plate by closing the two molds to obtain the curved screen. In the process of attaching the flexible screen to the curved cover plate, as shown in fig. 4, the bending end portion or the bending end corner of the flexible screen is very complicated in deformation, and the bottom end portion or the end corner of the bent cover plate is likely to have undesirable phenomena such as bubbles, and even the flexible screen is broken. And along with the increase of curved surface screen plane quantity of buckling, the bending end portion of flexible screen or the deformation of buckling the extreme angle department will be more complicated for the laminating of flexible screen and crooked apron is more difficult.
Disclosure of Invention
The application aims at the defects of the existing mode, provides the attaching roller, the attaching jig and the attaching method of the flexible screen and the bent cover plate, and is used for solving the technical problem that the flexible screen and the bent cover plate are difficult to attach in the prior art.
In a first aspect, embodiments of the present application provide a laminating roller, including: a roller and an attaching member;
the attaching piece is made of elastic materials and is provided with a first bottom surface, a second bottom surface and a peripheral surface;
the second bottom surface is attached to the surface of the roller;
the first bottom surface comprises a main binding surface and an end binding surface; the main binding surface is parallel to the second bottom surface and is used for being matched with the bottom surface main body of the bent cover plate; the end binding surface is raised from the main binding surface;
the circumferential surface is connected with the first bottom surface and the second bottom surface; the circumferential surface is used for matching with the bending surface of the bending cover plate.
In a second aspect, an embodiment of the present application provides a bonding jig, including: a base, and a laminating roller as provided in the first aspect above;
the base is used for limiting the bent cover plate;
the laminating roller is used for laminating the flexible screen and the bent cover plate.
In a third aspect, an embodiment of the present application provides a method for attaching a flexible screen to a curved cover plate, including:
limiting the bent cover plate on the base in the attaching jig provided by the second aspect;
limiting the flexible screen at the laminating piece of the laminating roller in the laminating jig provided by the second aspect;
aligning a flexible screen on an attaching piece of an attaching roller with a bent cover plate on a base;
one end of the flexible screen is attached to the corresponding end of the bent cover plate, and the attaching roller is driven to roll the flexible screen and the other end of the bent cover plate along the base; in the rolling process, the end binding face on the binding piece of the binding roller tightly presses the corresponding part of the flexible screen and the bottom end corner of the bent cover plate.
In a fourth aspect, an embodiment of the present application provides a method for manufacturing a bonding roller, including:
a vacuum cavity, a vacuum channel communicated with the vacuum cavity and a circuit channel are reserved in the roller;
preparing an inner cavity of an initial mold for manufacturing an attaching piece according to the surface of the inner cavity of the bent cover plate, and processing the inner cavity of the initial mold according to the curvature radius of the attaching piece to be prepared to obtain a mold;
injecting the elastic material in a molten state into a mold, and cooling and molding to obtain a fitting piece;
the attaching piece is in interference fit with the surface of the roller; or, the attaching piece is adhered to the surface of the roller.
The technical scheme provided by the embodiment of the application has the following beneficial technical effects:
1. the roller type laminating structure of the roller is adopted to realize the roller type laminating of the flexible screen and the bent cover plate, the flexible screen and the bent cover plate are in line contact during laminating, and the direction quantity of stress applied to the bent end angle of the flexible screen at the same moment can be reduced, so that the stress condition of the flexible screen can be obviously improved, and the risk of fragmentation is reduced; with the advance of the roller, air between the flexible screen and the bent cover plate can be well extruded out, and attaching bubbles are remarkably reduced;
2. the attaching piece is made of an elastic material, and provides flexible attaching force for attaching the flexible screen and the bent cover plate, so that the flexible screen can be protected while attaching is more sufficient;
3. the end binding face on the first bottom surface of binding piece is more protruding than main binding face, can take the lead to the bending end angle of flexible screen and the corresponding bottom surface end angle of crooked apron closely laminate at the laminating in-process, on this basis, the main binding face of binding piece rethread first bottom surface is progressively laminated with the main part of flexible screen and the bottom surface main part of crooked apron, the local laminating order of flexible screen has been optimized, the direction quantity of the stress that the angle department of buckling of flexible screen received has further been reduced, the deformation of the angle department of buckling of flexible screen has been simplified, thereby can realize the abundant laminating of flexible screen and crooked apron, the yields of curved surface screen has been improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a curved cover plate in the prior art;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic structural view of two bonding molds using a folding method in the prior art;
FIG. 4 is a schematic view showing a bonding state using the bonding mold shown in FIG. 3;
FIG. 5 is a schematic structural diagram of a laminating roller according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an attaching member of an attaching roller according to an embodiment of the present disclosure;
FIG. 7 is an enlarged view of FIG. 6 at B;
fig. 8 is a schematic side view of an engaging member of an engaging roller according to an embodiment of the present disclosure;
fig. 9 is a schematic view of an expanded structure of an attaching member of an attaching roller according to an embodiment of the present application;
fig. 10 is a schematic structural view of a bonding jig according to an embodiment of the present disclosure;
fig. 11 is a schematic flowchart illustrating a method for attaching a flexible screen to a curved cover plate according to an embodiment of the present disclosure;
fig. 12 is a schematic flow chart illustrating a process of limiting a flexible screen to an attachment member of an attachment roller in an attachment jig in a method for attaching a flexible screen to a curved cover plate according to an embodiment of the present application;
in the figure, the position of the upper end of the main shaft,
100-curved cover plates; 100 a-cover bottom surface; 100a 1-bottom body; 100a 2-bottom face end corner; 100 b-curved surface;
200-a flexible screen;
300-upper mold; 400-lower mold;
500-laminating roller;
510-a roller; 510 a-a vacuum chamber;
520-an abutment;
520 a-a first bottom surface; 520a 1-primary abutment surface; 520a 2-end abutment surface; 520 b-a second bottom surface; 520 c-a peripheral surface;
521-adsorption holes; 522-heating element; 522 a-annular heating tube; 522 b-strip heating tube;
600-a base;
700-bubbles.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, and/or components, but do not preclude the presence or addition of one or more other features, steps, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The inventors of the present application have conducted research to find that, as the number of the
The application provides a laminating roller, laminating tool and flexible screen and curved cover plate's laminating method, aims at solving prior art technical problem as above.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
The embodiment of the present application provides a
the
the second
the
the
In this embodiment, a roller-type attaching structure of the
The
The end attaching surface 520a2 on the
Alternatively, the attaching
Optionally, the surface of the
The inventor of the present application considers that the end abutment surface 520a2 on the
as shown in FIG. 8, the height of the end abutting surface 520a2 protruding from the main abutting surface 520a1 of the embodiment of the present application is H, 100 μm H150 μm (micrometer);
the end abutment surface 520a2 is a sector with a radius of 3mm (millimeters).
In this embodiment, the height of the end abutting surface 520a2 on the
The inventor of the present application considers that the
the
the
By adopting the matching mode provided by the embodiment, a certain matching gap can exist between the
The inventor of the application considers that the
as shown in FIG. 5, the
as shown in fig. 6 and 7, the
In this embodiment, the
The inventor of the present application considers that the
as shown in fig. 9, in the embodiment of the present application, the openings of the suction holes 521 located on the main attachment surface 520a1 of the
Or, d1Is 25mm, d2Is 20 mm.
By adopting the layout mode of the adsorption holes 521 at the main attachment surface 520a1 of the
The inventor of the present application considers that the
as shown in fig. 7, in the embodiment of the present application, at least 3 openings of the suction holes 521 are located at the end abutting surface 520a2 of the
Since the bending end angle of the
Alternatively, when the openings of the suction holes 521 are 3 or more, at least 3 of them are arranged at the positions of three vertices of a triangle to enhance the suction effect of the suction holes 521 on the
The inventor of the present application considers that the
as shown in fig. 9, the
the
the
In this embodiment, the
Alternatively, the
Based on the same inventive concept, the embodiment of the present application provides a bonding jig, a schematic structural diagram of which is shown in fig. 10, the bonding jig includes: a base 600, and any of the
the
the attaching
The working principle and the beneficial effects of the attaching jig provided in this embodiment refer to the attaching
Based on the same inventive concept, a flow schematic diagram of the method for attaching the flexible screen to the curved cover plate is shown in fig. 11, and the method includes the steps of:
s701: limiting the bent cover plate on the base in the attaching jig provided by the above embodiment;
s702: the flexible screen is limited at the laminating piece of the laminating roller in the laminating jig provided by the embodiment;
s703: aligning a flexible screen on an attaching piece of an attaching roller with a bent cover plate on a base;
s704: one end of the flexible screen is attached to the corresponding end of the bent cover plate, and the attaching roller is driven to roll the flexible screen and the other end of the bent cover plate along the base; in the rolling process, the end binding face on the binding piece of the binding roller tightly presses the corresponding part of the flexible screen and the bottom end corner of the bent cover plate.
In this embodiment, a roller-type attaching structure of the
By using the elastic material of the attaching
In the attaching process, the end attaching surface 520a2, which is more convex than the main attaching surface 520a1, on the
In step S702, a flowchart of a specific method for limiting the flexible screen to the fitting member of the fitting roller in the fitting jig provided in the foregoing embodiment is shown in fig. 12, and may include:
s7021: the main body part of the flexible screen is vacuum-adsorbed at the main binding surface of the binding piece, and the bent end corner of the flexible screen is vacuum-adsorbed at the end binding surface of the binding piece;
s7022: the flexible screen is heated to a preset temperature.
In this embodiment, vacuum adsorption is adopted to make the
Based on the same inventive concept, the preparation method of the laminating roller provided by the embodiment of the application comprises the following steps:
a vacuum cavity, a vacuum channel communicated with the vacuum cavity and a circuit channel are reserved in the roller;
preparing an inner cavity of an initial mold for manufacturing an attaching piece according to the surface of the inner cavity of the bent cover plate, and processing the inner cavity of the initial mold according to the curvature radius of the attaching piece to be prepared to obtain a mold;
injecting the elastic material in a molten state into a mold, and cooling and molding to obtain a fitting piece;
the attaching piece is in interference fit with the surface of the roller; or, the attaching piece is adhered to the surface of the roller.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
1. the roller type attaching structure of the
2. the
3. the end attaching surface 520a2 on the
4. the
5. the
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:用于汽车引擎构件的多孔模具