JPH0731910A - Method for coating sheet glass coating solution and device therefor - Google Patents

Abstract

PURPOSE:To efficiently apply an adhesive on the periphery of a sheet glass in a fixed width by applying an coating soln. on the surface of a frame-shaped pad having the same shape as that of the peripheral part of the sheet glass and matching the pad with the periphery of the sheet glass on the one face side. CONSTITUTION:A sheet glass G on a truck 2 is sucked by the suction cup 8 of a conveyor 4, conveyed above one tank 10 by the conveyor 4 and delivered to a jig 17. A pad 11 dipped in a primer 9 is simultaneously raised and pressed on the periphery of the sheet glass G to transfer the primer 9 to the periphery of the sheet glass G in a specified width. The sheet glass G with the lower face coated with the primer is conveyed to an inverter 18, turned upside down and further conveyed above another tank 10 by the conveyor 4 to transfer the primer to the periphery of the lower face of the sheet glass G in a specified width. The sheet glass G coated with the primer is placed onto a truck 3 by the conveyor 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for applying a coating liquid such as a primer, an adhesive and a film forming agent to the peripheral portion of a plate glass.

[0002]

2. Description of the Related Art As a front window and a rear window of an automobile, a resin molding is integrally formed on the periphery of a plate glass. As shown in FIG. 4, the molding of the resin molding is performed by holding the plate glass G by the suction cup 101 of the rotating jig 100 and rotating the plate glass G in this state while the felt 10 is being rotated.
The primer is applied with a brush or a brush, the peripheral edge of the plate glass G coated with the primer is made to face the cavity of the molding die, and molten resin is injected into the cavity for molding.

In addition to the above, as a method of applying a coating liquid such as a primer, a method of applying while a dispenser attached to the tip of an arm of a robot is moved along the peripheral portion of the plate glass, or a method of spraying or guning along the peripheral portion of the plate glass is used. There are a coating method, a coating method using a metering valve, and the like.

[0004]

The conventional method shown in FIG. 4 is extremely inefficient because many parts are manually formed. In addition, since a large amount of the coating liquid adheres to the felt at the beginning of coating and the coating is performed manually, the coating width is not uniform, and the coating is bleeding or scraped.

On the other hand, when a robot or the like is used, it is not possible to deal with a plate glass having a complicated shape, and particularly when it is applied to a window glass of an automobile, which often adopts a deep-bent shape product, the shape is changed. It cannot be followed and becomes a big problem.

[0006]

In order to solve the above-mentioned problems, a method for applying a coating solution according to the present invention provides a frame-shaped pad having a shape equal to the peripheral shape of a plate glass, and the coating solution is applied to the surface of the frame-shaped pad. After application or impregnation, the frame-shaped pad and the peripheral edge of the one side of the plate glass are brought into contact with each other to transfer the coating liquid to the peripheral edge of the one side of the plate glass.

The coating liquid coating apparatus according to the present invention is
A tank filled with the coating liquid, a frame-shaped pad provided in the tank and having a shape equal to the peripheral shape of the plate glass, and the frame-shaped pad is raised above the liquid level of the coating liquid in the tank and is embedded in the coating liquid. An elevating mechanism for forcing and a carrying mechanism for carrying the plate glass to above the tank were provided.

[0008]

Since the width of the frame-shaped pad on which the coating liquid is applied or impregnated is constant, when the plate glass is pressed against this frame-shaped pad, the coating liquid is transferred with a uniform width.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is an overall view showing an example of a coating liquid coating apparatus according to the present invention, FIG. 2 is a perspective view of a frame-shaped pad constituting a part of the coating apparatus, and FIG. 3 is AA of FIG. It is a line expansion sectional view.

The coating apparatus for coating a primer as a coating liquid is a trolley 2 having a plate glass G before primer coating on one side of a base 1 and a plate glass G after primer coating on the other side.
A trolley 3 on which is loaded is disposed, and a transport device 4 is disposed above the trolleys 2 and 3. This transporting device 4 is attached via a pantograph-shaped link 5 so that a lower plate 7 can be moved up and down with respect to an upper plate 6, and a suction plate 8 for lifting and supporting a plate glass G is provided on the lower plate 7.

Further, tanks 10 and 10 filled with the primer 9 are provided on the left and right sides of the base 1, and frame-shaped pads 11 having a constant width are arranged in these tanks 10. As shown in FIGS. 2 and 3, the frame-shaped pad 11 is made of a material such as sponge or felt that is easily impregnated with a primer, and its shape is the same as the outer peripheral shape of the plate glass G to which the primer is applied.

The frame-shaped pad 11 is attached to the frame body 12, and the frame body 12 is connected to the rod 14 via the frame 13.
It is attached to the top. And the rod 14 is the tank 1
It extends through the bottom surface of 0 and extends downward, and a rack 15 is engraved in the lower half thereof, and a pinion 16 rotated by a motor is meshed with this rack 15.

The normal rotation of the pinion 16 raises the rod 14, and the pad 11 is the primer 9 of the tank 10.
Of the primer 9 in the tank 10 because the rod 14 descends as the pinion 16 reverses.
Buried inside.

Further, a jig 17 for transferring the plate glass G to and from the conveying device 4 is arranged above each of the tanks 10 and 10, and a plate glass reversing device 18 is arranged between the tanks 10 and 10. is doing.

In the above, the plate glass G on the carriage 2 is sucked by the suction cup 8 of the transfer device 4, the plate glass G is transferred to one tank 10 by the transfer device 4, and the plate glass is transferred to the jig 17. In parallel with this, the pad 11 buried in the primer 9 is raised and the pad 11 is pressed against the peripheral edge of the plate glass G. As a result, the primer 9 is transferred to the peripheral portion of the plate glass G with a constant width.

Next, the plate glass G having the primer applied and transferred to the lower surface thereof is conveyed to the reversing device 18 by the conveying device 4 so that the upper and lower surfaces are inverted, and the plate glass G is conveyed to above the other tank 10 by the conveying device 4, In the same manner as described above, the primer is transferred and applied to the peripheral portion of the lower surface of the plate glass G with a constant width. As a result, the primer is applied to both sides of the plate glass G.

After that, the plate glass G on which the primer has been applied is placed on the carriage 3 by the transport device 4. In this case, a spacer is inserted between the plate glasses G so that the applied primers do not overlap each other.

In the illustrated example, the frame-shaped pad can be moved up and down in the primer tank. However, the frame is made hollow, and the primer is fed into the frame by pressurizing it to form holes in the frame. Alternatively, the primer may be supplied from the pad to the pad so that the primer exudes from the pad. In this way, it is possible to prevent dust and the like in the air from being mixed into the primer. Further, this method is suitable when the viscosity of the primer is low. Further, the present invention is not limited to the application of a primer, but can be applied to a coating liquid for forming a coating film such as an adhesive or a ceramic color.

[0019]

As described above, according to the coating liquid application method of the present invention, the coating liquid is applied or impregnated on the surface of the frame-shaped pad having the same shape as the peripheral shape of the plate glass, and then the frame is formed. Since the strip-shaped pad and the peripheral edge of one side of the plate glass are brought into contact with each other, the coating liquid can be accurately applied to the peripheral edge of the plate glass with a constant width.

Further, according to the coating liquid coating apparatus of the present invention, the tank filled with the coating liquid, the frame-shaped pad provided in the tank and having the same shape as the peripheral shape of the plate glass, and the frame-shaped pad are provided. Since the elevating mechanism for raising the liquid level of the coating liquid in the tank and burying it in the coating liquid and the transport mechanism for transporting the plate glass to above the bath are provided, the coating liquid can be applied automatically. Further, by providing a pair of tanks and disposing the plate glass reversing mechanism between these tanks, the coating liquid can be continuously applied to both front and back surfaces of the plate glass.

[Brief description of drawings]

FIG. 1 is an overall view showing an example of a coating liquid coating apparatus according to the present invention.

FIG. 2 is a perspective view of a frame-shaped pad forming a part of the coating apparatus.

FIG. 3 is an enlarged sectional view taken along line AA of FIG.

FIG. 4 is a perspective view illustrating a conventional coating method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2, 3 ... Cart, 4 ... Conveyor, 9 ... Primer (coating liquid), 10 ... Tank, 11 ... Pad, 12 ... Frame,
18 ... Inversion device, G ... Plate glass.

Claims (3)

[Claims] 1. A coating solution is applied to or impregnated on the surface of a frame-shaped pad having the same shape as the peripheral edge of the plate glass, and the frame-shaped pad and the peripheral edge of the one surface side of the plate glass are brought into contact with each other to contact the one surface side of the plate glass. Transfer the coating liquid to the periphery,
Then, the coating liquid is applied to the other side peripheral edge of the plate glass by the same means, and the coating liquid is applied to the plate glass. 2. A tank filled with the coating liquid, a frame-shaped pad provided in the tank and having a shape equal to the peripheral shape of the plate glass, and the frame-shaped pad being raised above the liquid level of the coating liquid in the tank. An apparatus for applying a coating liquid to a plate glass is also provided with an elevating mechanism for immersing the plate glass in the coating liquid, and a transport mechanism for transporting the plate glass above the bath. 3. The apparatus for applying a coating liquid to a plate glass according to claim 2, wherein a pair of said tanks are provided, and a plate glass reversing mechanism is arranged between these tanks.