JP3171995U - Panel pressure bonding device structure - Google Patents

Abstract

A structure of a panel compression bonding apparatus is provided in which panels are uniformly pressed, overlapped, and integrally formed. The structure of the panel compression bonding apparatus includes a processing tank 1 and a pressure cover 2, and upper and lower plate positioning frames 4 and 3 are installed in the processing tank 1 to perform stacking processing. Each of the panels 7 and 6 can be accurately installed and positioned, and a plurality of elastic support parts are installed between the inside of the lower plate localization frame 3 and the upper plate localization frame 4. The pressure cover 2 is a pressure unit having a soft crimping surface on the bottom surface. During the pressure bonding process, the pressure cover 2 is tightly placed over the processing tank 1 and a vacuum is formed in the processing tank 1 by a vacuum pump. Then, downward pressure is applied to the lower panel 6 by the pressurizing unit. [Selection] Figure 4

Description

  The present invention relates to a structure of a panel compression bonding apparatus, and more particularly to a panel compression bonding apparatus that is used in a touch panel manufacturing process, and is formed by compressing and bonding a plurality of stacking layers such as a glass plate and another hard plate or a flexible thin film. Related to the structure.

  The structure of the touch panel is formed by adhesively bonding several glass plates or panel stacking layers such as flexible thin films. Further, two sheet-like resistive films are provided, arranged in a state of facing each other with a certain gap therebetween, and sealed between the panel stacking layers described above. Usually, the adhesive bonding means between each panel stacking layer is installed by fixing a flexible thin film on the bottom surface of the upper processing tank and fixing a glass plate made of a hard material on the upper surface of the lower processing tank. To do. Following this, the upper and lower processing tanks are combined and an appropriate compression stress is applied in the upper or lower processing tank. By carrying out like this, a glass plate and a flexible thin film are adhesively joined by the pressure which the adhesive agent previously installed on the mutual surface and the processing tank provide, and comprise one.

In the conventional means described above, when each panel stacking layer is installed in the upper and lower processing tanks, a target to be installed in advance is used as a basis for position adjustment. However, this type of installation method is time consuming and cumbersome, difficult to increase efficiency, and requires a high level of attention, which is prone to human error and stable processing quality. It is difficult to make it. Moreover, with the conventional means, most of the current pressure is applied to the processing tank by a set of pneumatic cylinder push mechanisms. However, in this type of system, the force of the pneumatic cylinder push mechanism concentrates on one point, so that the surface of the processing tank repeatedly receives enormous compression stress, which often causes protruding deformation, resulting in a uniform compression effect. Cannot be achieved. Furthermore, the design in which the compression stress transmitted from the atmospheric pressure cylinder is applied to the central portion of the processing tank cannot uniformly distribute the compression stress to each part on the processing tank surface. In particular, if the object to be pressed is placed unevenly, a difference appears in the pressing stress received by each part of each panel stacking layer. If this result is light, non-uniform pressure will be caused. If serious, a part of the pressed object will be damaged and close bonding will not be possible. Further, with the above-described conventional means, if plane bonding is performed in a general working environment, bubbles remain in the bonding surface, resulting in processing failure.
The present invention has been made in view of the above-described drawbacks of the structure of the conventional panel compression bonding apparatus.

  The problem to be solved by the present invention is to install a stereotaxic frame in the processing tank, and simply and quickly place and accurately position a plurality of panel stacking layers, and further create a vacuum in the processing tank. Utilizing a pressure unit having a soft crimping surface, a downward pressure is provided to each panel stacking layer, so that each part of the panel stacking layer can receive a uniform pressure and overlap to form an integral body. It is to provide a structure of a panel compression bonding apparatus.

In order to solve the above problems, the present invention provides the following structure of a panel compression bonding apparatus.
The structure of the panel compression bonding device includes a processing tank and a pressure cover,
The processing tank can be installed on the bottom wall of the tank, an upper panel can be installed, and in the processing tank, pores are installed, leading to a vacuum pump,
The upper plate positioning frame is installed on the outer periphery of the installation board, thereby defining the installation position of the upper panel,
The frame wall apex edge of the upper plate localization frame is slightly lower than the installation height of the upper panel apex surface,
The lower plate localization frame is installed on the outer periphery of the upper plate localization frame, and defines the installation position of the lower panel.
The frame wall apex edge of the lower plate orientation frame is slightly lower than the installation height of the lower panel apex surface,
A plurality of elastic support parts are installed between the inner side of the lower plate stereotaxic frame and the upper plate stereotaxic frame, and provide a force to support the lower panel from below, thereby providing a space between the lower panel and the upper panel. Has a gap,
The pressure cover can be placed over the processing tank and covered or opened freely. A pressure unit is provided at the bottom of the pressure cover and at the position where the lower panel is installed. The pressure unit is provided with a soft crimping surface;
Using the upper and lower plate positioning frames, the upper and lower panels are each accurately placed in the processing tank, and the pressure cover is placed tightly over the processing tank.
The processing tank is evacuated by a vacuum pump, and the pressure unit provides a downward pressure to the lower panel,
Thereby, the lower panel overcomes the supporting force from below each elastic support part and moves downward, thus the upper and lower panels are pressurized and overlap, forming an integral,
Each elastic support component is installed upright on the elastic pin or spring at the top edge of the frame wall of the upper plate positioning frame, and is installed vertically on the elastic pin or spring on the inner frame wall of the lower plate positioning frame. And
The elastic pin has excellent elastic deformation characteristics and is any of natural rubber, synthetic rubber, or elastic plastic, but the implementation range is not limited to this,
In another embodiment, the elastic support component is a telescopic engagement structure installed on the inner frame wall of the lower plate stereotaxic frame, and includes a hook and a spring.
One end of the hook is connected to the inner frame wall of the lower plate stereotaxic frame so that the side of the opposite end of the hook pushes the spring,
The pressure unit is an elastic membrane,
The elastic membrane peripheral edge is hermetically fixed and connected to the bottom surface of the pressure cover, and in the central portion of the elastic membrane, a space that can be filled with air is formed,
Another pressurizing unit is an elastic air tube,
In operation, using the drive of the air pump, the elastic membrane or the elastic air tube is filled with gas or degassed, thereby controlling the amount of pressure applied by the pressurizing unit, Between the lower panels, an adhesive layer such as optical adhesive (OCA) or isoprene rubber (Isoprene Rubber) is installed,
The adhesive layer is pre-installed on the upper surface of the upper panel, or pre-installed on the lower surface of the lower panel,
The lower panel employs a hard thin plate such as a glass plate, but the upper panel can use either a hard thin plate or a soft thin plate.

  The structure of the panel compression bonding device of the present invention is that a stereotaxic frame is installed in the processing tank, and a plurality of panel stacking layers are accurately positioned and positioned simply and quickly, and a vacuum is formed in the processing tank. In addition, a pressure unit having a soft pressure bonding surface is used to provide downward pressure to each panel stacking layer, so that each part of the panel stacking layer receives pressure uniformly and forms an integral unity. it can.

It is a side cross-sectional schematic diagram which shows the pressurization cover and processing tank of this invention 1st Example in a separated state. It is an overhead view of the processing tank of the first embodiment of the present invention. It is a side cross-sectional schematic diagram which shows the state which the pressurization cover and processing tank of 1st Example of this invention combined. When the elastic membrane of the first embodiment of the present invention is filled with air, the upper and lower panels are pressurized, overlapped, and are side cross-sectional schematic views showing a state in which they are integrally formed. It is a side cross-sectional schematic diagram of 2nd Example of this invention. When the elastic film of the second embodiment of the present invention is filled with air, the upper and lower panels are pressurized, overlapped, and are side cross-sectional schematic views showing a state of forming an integral body. It is a side cross-sectional schematic diagram of 3rd Example of this invention. When the elastic film of the third embodiment of the present invention is filled with air, the upper and lower panels are pressurized, overlapped, and are side cross-sectional schematic views showing a state in which they are integrally formed.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  The first embodiment of the present invention shown in FIGS. 1 and 2 includes a processing tank 1 and a pressurizing cover 2 that covers the processing tank 1 vertically corresponding to the processing tank 1. The processing tank 1 includes a tank-type working space that is recessed downward, and an installation substrate 11 is installed at a central portion of the bottom wall of the tank. Moreover, pores 12 are installed in the processing tank 1 and connected to a vacuum pump (not shown). A lower plate localization frame 3 is installed around the outer periphery of the installation substrate 11. A lower panel 6 to be stacked can be installed inside the lower plate positioning frame 3, whereby the installation position of the lower panel 6 can be positioned quickly and accurately. The frame wall top edge of the lower plate positioning frame 3 is slightly lower than the installation height of the apex surface of the lower panel 6, thereby preventing interference with the pressing operation between the panel stacking layers. An upper plate localization frame 4 is installed on the outer peripheral edge of the lower plate localization frame 3. At least four elastic pins 5 are inserted and installed inside the frame wall of the upper plate localization frame 4 and on the top edge of the frame wall of the lower plate localization frame 3. An upper panel 7 to be machined is installed on the inner side of the frame wall of the upper plate positioning frame 4 and the bottom surface of the upper panel 7 is supported by using the elastic pin 5 described above. , 6, an appropriate gap is maintained. In this way, the position of the upper panel 7 can be determined quickly and accurately. In particular, the frame wall apex edge of the upper plate positioning frame 4 is slightly lower than the installation height of the apex surface of the upper panel 7, so that interference with the press work between the panel stacking layers can be prevented. Since the above-described elastic pin 5 needs to have excellent elastic deformation characteristics, it is usually manufactured using a resin material such as natural rubber, synthetic rubber, or elastic plastic. In addition, an adhesive layer 8 is further provided between the lower panels 7 and 6. The adhesive layer 8 employs a material such as an optical adhesive or isoprene rubber, and is installed on the upper surface of the lower panel 6 or the lower surface of the upper panel 7 by means of coating or printing. The upper panel 7 is preferably selected from a hard thin plate such as a glass plate in order to avoid a situation where the upper panel 7 is supported by the elastic pin 5 and cannot be positioned. However, the lower panel 6 can be used for both hard thin plates and soft thin plates.

  The pressure cover 2 can be placed over the processing tank 1 so as to cover or open. An elastic film 25 is provided on the bottom surface of the pressure cover 2. The peripheral edge of the elastic membrane 25 is fixedly connected to the peripheral edge of the bottom surface of the pressure cover 2 so as to control the compression by screwing the compression control ring 26. A space that can be filled with gas is formed in the central portion of the elastic membrane 25, and pores 12 are provided in the central portion of the bottom surface of the pressure cover 2 to communicate with the air pump. Since the elastic membrane 25 employs a rubber material, the above-described air pump is used to fill the air or to remove the air, thereby determining whether or not the elastic membrane 25 generates pressure, and whether The size can be controlled.

  As shown in FIGS. 3 and 4, when operating the present invention, the operator first installs the lower panel 6 to be stacked on the installation board 11 in the lower plate positioning frame 3. Further, the upper panel 7 to be stacked is placed in the upper plate localization frame 4 and supported by the elastic pins 5 for localization. Next, the pressurization cover 2 and the processing tank 1 are closely aligned so that the upper and lower sides correspond vertically. Subsequently, a vacuum state is formed in the processing tank 1 by the operation of the vacuum pump, and at the same time, the filling of air is started by the air pump leading to the pressure cover 2. As a result, the elastic film 25 gradually swells and pushes downward. However, the downward pressure of the elastic film 25 acts uniformly on the upper panel 7, so that the elastic pin 5 on the bottom surface receives the pressure. Deforms and moves downward. Thus, the upper and lower panels 7 and 6 are pressurized to form an integral body. When the pressurization to the upper and lower panels 7 and 6 is completed, the air pump releases the air pressure, whereby the elastic membrane 25 is contracted and restored. At the same time, the vacuum pump returns air into the processing tank 1. Thereby, the pressurization cover 2 and the processing tank 1 are opened and separated, thereby facilitating the removal of the panel that has been pressed.

  As described above, the present invention installs the upper and lower plate positioning frames 4 and 3 in the processing tank 1 to install the upper and lower panels 7 and 6 quickly and accurately. Further, by using the air filling to the elastic film 25, a uniformly distributed compression stress is generated, whereby the upper and lower panels 7 and 6 can obtain an average compression effect. Further, damage to the processed property can be avoided, and during processing, the pressure inside the processing tank 1 is evacuated due to the close correspondence between the pressure cover 2 and the processing tank 1, so that the upper and lower panels 7, 6 It is possible to overcome the problem that air bubbles are generated on the joint surface, and to improve the yield and the quality of the product.

The names and contents of the present invention described above are only used for explaining the technical contents of the present invention, and do not limit the present invention. For example, the elastic pin 5 can be replaced with a spring. Further, as shown in the second embodiment of FIGS. 5 and 6, the elastic pin 5 can be installed vertically on the inner frame wall of the upper plate positioning frame 4. In this case, due to the elastic deformation characteristics of the elastic pin 5 ′, when it receives pressure, it bends downward, the upper panel 7 is moved downward, and is pressed and joined to the lower panel 6 to form an integral body (FIG. 6). reference). Further, as shown in the third embodiment of FIGS. 7 and 8, the elastic pin described above can be replaced with a telescopic engagement structure installed on the inner frame wall of the upper plate positioning frame 4. The telescopic engagement structure includes a hook 91 and a spring 92. One end of the hook 91 is connected to the inner frame wall of the lower plate positioning frame, so that the side surface of the opposite end of the hook 91 presses the spring 92. When the hook 91 receives pressure, the hook 91 swings downward, whereby the upper panel 7 moves downward and press-joins with the lower panel 6 to form an integral body (see FIG. 8).
As described above, the second and third embodiments of the present invention can achieve the same or similar functions as the first embodiment.
The names and contents of the present invention described above are only used for explaining the technical contents of the present invention, and do not limit the present invention. All equivalent applications based on the spirit of the present invention, parts (structures) conversion, replacement, and quantity increase / decrease shall be included in the protection scope of the present invention.

  The present invention has the novelty that is a requirement for utility model registration, has sufficient progress compared to similar products of the past, has high practicality, meets the needs of society, and has a very high industrial utility value. large.

DESCRIPTION OF SYMBOLS 1 Processing tank 11 Installation board 12 Pore 2 Pressurization cover 25 Elastic film 26 Frame type compression control ring 3 Lower plate localization frame 4 Upper plate localization frame 5 Elastic pin 5 'Elastic pin
6 Lower panel 7 Upper panel 8 Adhesive layer 91 Hook 92 Spring

Claims (10)

The structure of the panel compression bonding device includes a processing tank and a pressure cover,
In the processing tank, an installation substrate can be installed on the bottom wall of the tank, an upper panel can be installed, and in the processing tank, pores are installed, leading to a vacuum pump,
The upper plate positioning frame is installed on the outer periphery of the installation board, thereby defining the installation position of the upper panel,
The frame wall apex edge of the upper plate localization frame is slightly lower than the installation height of the upper panel apex surface,
The lower plate localization frame is installed on the outer periphery of the upper plate localization frame, and defines the installation position of the lower panel.
The frame wall apex edge of the lower plate orientation frame is slightly lower than the installation height of the lower panel apex surface,
A plurality of elastic support parts are installed between the inner side of the lower plate positioning frame and the upper plate positioning frame, and provide a force to support the lower panel from below, whereby the lower panel is located between the upper panel and the upper panel. Has a gap,
The pressure cover can be placed on top of the processing tank so as to cover or open, and a pressure unit is provided on the bottom surface of the pressure cover and at the position where the lower panel is installed. The pressure unit is provided with a soft crimping surface;
Using the upper and lower plate localization frames, the upper and lower panels are each accurately installed in the processing tank, and the pressure cover is placed tightly over the processing tank,
The processing tank is evacuated by a vacuum pump, and the pressurizing unit provides a downward pressure to the lower panel,
Accordingly, the lower panel overcomes the supporting force from below each elastic support component and moves downward, and thus the upper and lower panels are pressurized and overlap to form an integral body. Panel pressure bonding device structure. Each elastic support component is installed upright on the elastic pin at the top edge of the frame wall of the upper plate localization frame,
The structure of the panel compression bonding apparatus according to claim 1, wherein the material of the elastic pin is one of natural rubber, synthetic rubber, or elastic plastic. Each elastic support component is vertically installed on an elastic pin on the inner frame wall of the lower plate stereotaxic frame,
The structure of the panel compression bonding apparatus according to claim 1, wherein the material of the elastic pin is one of natural rubber, synthetic rubber, or elastic plastic.   The structure of the panel compression bonding apparatus according to claim 1, wherein each of the elastic support parts is a spring. Each elastic support component is a telescopic engagement structure installed on the inner frame wall of the lower plate stereotaxic frame,
The telescopic engagement structure includes a hook and a spring,
The panel compression bonding apparatus according to claim 1, wherein one end of the hook is connected to an inner frame wall of the lower plate stereotaxic frame so that a side surface of the opposite end of the hook presses the spring. Construction. The pressure unit is an elastic membrane,
The peripheral edge of the elastic membrane is hermetically fixed and connected to the bottom surface of the pressure cover, and the elastic membrane central portion is driven by an air pump, filled with gas, or wetted with gas. The structure of the panel compression bonding apparatus according to claim 1.   The structure of the panel compression bonding apparatus according to claim 1, wherein the pressurizing unit is an elastic air tube, is driven by an air pump, is filled with gas, or is wetted with gas.   The structure of the panel compression bonding apparatus according to claim 1, wherein the lower panel is a hard thin plate.   The structure of the panel compression bonding apparatus according to claim 1, further comprising an adhesive layer on an upper surface of the upper panel.   The structure of the panel compression bonding apparatus according to claim 1, further comprising an adhesive layer on the bottom surface of the lower panel.

Images