CN111755631A

CN111755631A - Net-stretching machine table

Info

Publication number: CN111755631A
Application number: CN202010594558.2A
Authority: CN
Inventors: 张新建; 万永超
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2020-10-09
Also published as: WO2022000890A1

Abstract

The invention discloses a net-stretching machine table, which comprises a machine table body, wherein the machine table body is provided with a bearing surface, and the bearing surface is used for bearing a mask frame; the groove holes are formed in the bearing surface of the machine table body, air holes are formed in the bottoms of part of the groove holes, and part of the groove holes are communicated with the air floatation mechanism through the air holes; and the frame spacing sensor is arranged in part of the groove holes and is used for measuring the blowing height of the mask frame.

Description

Net-stretching machine table

Technical Field

The application relates to the technical field of displays, in particular to a net stretching machine table.

Background

In the current market, flat panel displays include liquid crystal display displays, organic light emitting diode displays, plasma display panel displays, electronic ink screen displays, and the like. Among them, organic light-Emitting diodes (OLEDs for short) mainly have the advantages of being capable of Emitting light autonomously, being capable of being provided with a flexible screen, having high light-Emitting efficiency, fast response time, being light and thin, low power consumption, high contrast, high color gamut, and the like, and are the development trend of next-generation displays. The OLED display technology mainly includes a PMOLED (Passive matrix organic electroluminescent diode) display technology and an AMOLED (Active matrix organic electroluminescent diode) display technology. The AMOLED display technology is realized in a mode of 'LTPS backboard + fine metal Mask (FMM Mask)' and in a mode of 'Oxide backboard + WOLED + color film'. The former is mainly applied to small-sized panels such as display designs of mobile phones and mobile products, and the latter is mainly applied to large-sized panels such as screens and televisions. At present, the mode of the LTPS backboard and the FMM Mask is preliminarily mature, and mass production is realized.

In the LTPS backplane + fine metal Mask (FMM Mask) approach, a high-precision metal Mask needs to be screened. In the existing mesh process, the two biggest difficulties of a Fine Metal Mask (FMM mesh for short) are the matching of welding, tension and Counter Force (CF). In the existing screen stretching process, a mask Frame (Frame) is borne on a screen stretching machine (Stage), and the friction force existing between the mask Frame and the Stage greatly hinders the accurate application of counter force. Because the mask frame can be placed on a machine table of the tensioning device, friction force can be applied in the process of applying the CF, and the accuracy of the applied CF is reduced. The process difficulty in managing and controlling the parameters of the CF transfer process is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the embodiment of the application provides a stretch-net machine, which can reduce the friction force between a mask frame and the stretch-net machine, and ensure the accuracy of the counter force.

The embodiment of the invention provides a net-stretching machine table, which comprises a machine table body, wherein the machine table body is provided with a bearing surface, and the bearing surface is used for bearing a mask frame;

the groove holes are formed in the bearing surface of the machine table body, air holes are formed in the bottoms of part of the groove holes, and part of the groove holes are communicated with the air floatation mechanism through the air holes; and

and the frame spacing sensor is arranged in part of the groove holes and is used for measuring the blowing height of the mask frame.

According to the mesh stretching machine table provided by the embodiment of the invention, the air holes are uniformly arranged in part of the groove holes at intervals.

According to the mesh stretching machine station provided by the embodiment of the invention, the frame spacing sensors are uniformly arranged in part of the groove holes at intervals.

According to the mesh stretching machine station provided by the embodiment of the invention, the number of the frame distance sensors is less than that of the air holes.

According to the mesh-opening machine table provided by the embodiment of the invention, the machine table body is of a frame structure and is formed by enclosing a plurality of side edges, and the bearing surface corresponding to each side edge is provided with a plurality of groove holes.

According to the netting machine provided by the embodiment of the invention, a plurality of groove holes arranged on the bearing surface corresponding to each side edge are arranged in a plurality of rows, and the intervals of the groove holes in the same row on the side edge are the same.

According to the netting machine provided by the embodiment of the invention, the groove holes arranged on the bearing surface corresponding to each side edge are arranged along two rows.

According to the netting machine provided by the embodiment of the invention, the number of the groove holes in the plurality of rows of the bearing surfaces corresponding to the same side edge is equal.

According to the netting machine table provided by the embodiment of the invention, the groove holes are square or circular or rhombic or spherical.

The invention has the beneficial effects that: according to the mesh stretching machine table provided by the embodiment of the invention, the bearing surface of the body of the mesh stretching machine table is provided with the plurality of groove holes, part of the groove holes are internally provided with the air holes, the air holes are connected with the air floatation mechanism, and the mask frame placed on the bearing surface can be blown and floated through the air holes. And a frame spacing sensor is also arranged in part of the groove holes and used for measuring the blowing height of the mask frame. If the frame sensor detects that the height of the mask frame is too high, the air flow speed of the air holes can be changed to reduce the blowing height of the mask frame. The design of blowing the mask frame by using the air holes can reduce the contact between the mask frame and the stretched net machine table, so that the friction force between the mask mining machine and the stretched net machine table is greatly reduced, the counter force can be accurately exerted on the mask frame, and the mask stretching precision in the manufacturing process is remarkably improved.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic top view of a web-spreading machine according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Fig. 1 is a schematic top view of a web-stretching machine 100 according to an embodiment of the present invention. In the present exemplary embodiment, the stretching machine 100 disclosed in the present embodiment is described by taking a stretching device applied to an OLED device as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the concepts of the present disclosure to other types of display devices or other processes, and such changes are within the scope of the principles of the screening machine 100 as set forth in the present disclosure.

As shown in fig. 1, the web-stretching machine 100 provided in the present embodiment mainly includes a machine body 101, the machine body 101 has a bearing surface 1011, and the web-stretching machine 100 bears the mask frame 110 through the bearing surface 1011 (the dashed box in the figure indicates the mask frame 110). A plurality of groove holes 102, wherein the groove holes 102 are all disposed on the bearing surface 1011 of the machine body 101, wherein air holes 1021 are disposed at the bottom of a part of the groove holes 102, a part of the groove holes 102 are communicated with an air floating mechanism through the air holes 1021, and when the air floating mechanism blows air into the groove holes 102 through the air holes 1021, the mask frame 110 placed on the bearing surface 1011 is blown up. The machine body 101 further comprises a frame spacing sensor 1022, the frame spacing sensor 1022 is disposed in a portion of the groove hole 102, and the frame spacing sensor 1022 is used for measuring a blow-up height of the mask frame 110. The groove holes 102 are square or circular or diamond or spherical, and in this embodiment, the groove holes 102 are circular.

Specifically, the air holes 1021 for blowing air are arranged at regular intervals in a part of the groove holes 102. The air holes 1021 are uniformly spaced, so that the mask frame 110 can stably and continuously lift. Wherein the frame pitch sensors 1022 are disposed at regular intervals in a part of the groove holes 102. The uniform arrangement of the distance sensors 1022 allows more accurate determination of the height of the mask frame 110 blown by the air flow, and thus more accurate adjustment of the reaction force acting on the mask frame 110. The number of the frame pitch sensors 1022 is smaller than the number of the air holes 1021.

Specifically, in this embodiment, based on the structure of the mask frame 110, the machine body 101 may preferably adopt a frame structure. The frame structure is formed by enclosing a plurality of side edges 103, and on this basis, the bearing surface 1011 corresponding to each side edge 103 is provided with a plurality of groove holes 102. Further, based on the design that the bearing surface 1011 corresponding to each side 103 is provided with a plurality of the groove holes 102 in this embodiment, the plurality of the groove holes 102 provided on the bearing surface 1011 corresponding to each side 103 are preferably arranged in a plurality of rows, and the intervals between the plurality of the groove holes 102 on the side 103 in the same row are the same. In this embodiment, the plurality of groove holes 102 disposed on the bearing surface 1011 corresponding to each side 103 are arranged in two rows. In other embodiments, the number of the rows of the groove holes 102 disposed on the bearing surface 1011 corresponding to each side edge 103 may be one row or two or more rows, and is not limited to the two-row arrangement in this embodiment. In the present embodiment, for the rows of the recessed holes 102 disposed on the bearing surface 1011 corresponding to the same side 103, the number of the recessed holes 102 in each row is equal.

In this embodiment, when the mask frame 110 is placed on the machine body 101, the mask frame 110 is suspended above the machine body 101 by the airflow blown out through the air holes 1021, so that the contact between the mask frame 110 and the machine body 101 can be reduced, and the friction between the mask frame 110 and the machine body 101 can be greatly reduced. Before the counter force is applied to the mask frame 110, whether the mask frame 110 is at a reasonable height may be detected by the distance sensor 1022, and if the mask frame 110 is at an unreasonable height, the height between the mask frame 110 and the machine body 101 may be adjusted by changing the amount of air blown into the air holes 1021 by the air floating mechanism.

According to the mesh stretching machine table provided by the embodiment of the invention, the bearing surface of the body of the mesh stretching machine table is provided with the plurality of groove holes, part of the groove holes are internally provided with the air holes, the air holes are connected with the air floatation mechanism, and the mask frame placed on the bearing surface can be blown and floated through the air holes. And a frame spacing sensor is also arranged in part of the groove holes and used for measuring the blowing height of the mask frame. If the frame sensor detects that the height of the mask frame is too high, the air flow speed of the air holes can be changed to reduce the blowing height of the mask frame. The design of blowing the mask frame by using the air holes can reduce the contact between the mask frame and the stretched net machine table, so that the friction force between the mask mining machine and the stretched net machine table is greatly reduced, the counter force can be accurately exerted on the mask frame, and the mask stretching precision in the manufacturing process is remarkably improved.

The above detailed description is made on a mesh machine provided in the embodiment of the present application, and a specific example is applied in the detailed description to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understand the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A net-tensioning machine station, characterized in that, net-tensioning machine station includes:

the mask frame comprises a machine table body, a mask frame body and a mask frame body, wherein the machine table body is provided with a bearing surface used for bearing the mask frame;

the groove holes are formed in the bearing surface of the machine table body, and air holes are formed in the bottoms of part of the groove holes; and

2. The tentering frame of claim 1, characterized in that the air holes are arranged in part of the groove holes at uniform intervals.

3. The tentering stage of claim 1, characterized in that the frame pitch sensors are evenly spaced in part of the grooved holes.

4. The tentering stage of claim 1, characterized in that the number of frame pitch sensors is less than the number of air holes.

5. A screening machine as claimed in claim 1, wherein the machine body is of a frame-type structure and is enclosed by a plurality of side edges, and the bearing surface corresponding to each side edge is provided with a plurality of groove holes.

6. A screening machine station according to claim 5, wherein a plurality of the groove holes provided in the bearing surface corresponding to each side are arranged in a plurality of rows, and the intervals of the groove holes in the same row on the side are the same.

7. A screening machine station according to claim 6, wherein the plurality of groove holes provided in the bearing surface corresponding to each side are arranged in two rows.

8. A screening machine station according to claim 7, wherein the number of the rows of the groove holes provided in the bearing surface corresponding to the same side edge is equal.

9. A screening machine station according to claim 1, characterized in that the groove holes are square or circular or diamond or spherical.