JP2000233830A - Erect carrying method of glass substrate and carrying device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent cracking of a glass substrate in a liquid by perpendicularly nipping both smooth surfaces of the glass substrate by a plurality of upright rollers, respectively, and carrying the glass substrate upright by the rotation of the upright rollers. SOLUTION: A glass substrate 5 in a solution, such as cleaning solution, is nipped by symmetrically mounted upright rollers groups 6, 7 and is carried upright by the rotation of the upright roller groups 6, 7. The upright roller groups have elastic members 8, 9, 10, 11 while nipping and guiding the glass substrate 5 in contact with both smooth surfaces. The upper and lower ends of the glass substrate 5 are supported by an upper roller group 12 and a lower roller group 13, respectively. Since the upper end of the glass substrate 5 makes contact with a cushion member 15 provided on the groove part 14 of the upper roller group 12 and the lower end of the glass substrate 5 engages with a cushion member 17 provided on the groove part 16 of the lower roller group 13, both the upper and lower ends of the glass substrate 5 are guided without shaking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass substrate upright transfer method and apparatus for transferring a glass substrate used for a liquid crystal cell or the like in an upright state. Needless to say, the present invention can be used for transporting thin and thick glass substrates other than liquid crystal cells.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 1 and 2, a glass substrate 1, which is a material of a liquid crystal cell, is transported horizontally by rollers 2, 3, and 4. Therefore, the glass substrate 1
If the glass substrate is cracked or chipped due to the weight of the substrate itself, vibration due to rotation of the rollers 2, 3, 4 or if the glass substrate is conveyed in a liquid during a cleaning step or the like, the glass substrate is shaken due to the flow of the cleaning liquid or the like. , Product yield was poor.

[0003]

Conventionally, in a step of immersing a glass substrate in a liquid, such as a step of cleaning a glass substrate or a step of peeling a part of a thin film laminated on the surface of the substrate, the own weight of the substrate itself, The glass substrate was cracked or chipped due to blurring of the glass substrate caused by the liquid flow in the liquid, the rotational vibration of the transport roller, and the like. SUMMARY OF THE INVENTION An object of the present invention is to provide a glass substrate upright transfer method and a transfer apparatus for solving the problems in the conventional glass substrate transfer.

[0004]

To achieve the above object, the present invention is characterized in that a glass substrate is transported in an upright state. A glass substrate for a liquid crystal cell is transported. A guide wire is provided parallel to the side surface of the glass substrate and at a predetermined interval. The surface of the guide wire is covered with a protective cover. The smooth surface on both sides of the glass substrate is sandwiched between a plurality of upright rollers, the glass substrate is made upright, and the glass substrate is transported upright by rotation of the upright roller.

[0005]

According to the present invention, the glass substrate is held upright by sandwiching the smooth surfaces on both sides of the glass substrate with the upright roller, and the glass substrate is transported upright by rotation of the upright roller. Deflection due to its own weight, blurring of the glass substrate due to rotational vibration of the transport roller, blurring of the glass substrate due to the flow of the cleaning liquid in the cleaning process, etc., and as a result, cracking or chipping of the glass substrate can be suppressed. Can be prevented.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a transfer method in which a flat surface of a glass substrate is sandwiched between upright rollers, the glass substrate is placed in an upright state, and the glass substrate is transported upright by rotation of the upright roller. The method and the transfer device thereof are described in a concrete and concrete manner by an embodiment.

[0007]

FIG. 3 is a front view showing an embodiment of the present invention. The present invention will be specifically described based on this figure.
In this embodiment, the glass substrate is transported in a solution such as a cleaning liquid. The glass substrate 5 is sandwiched between upright roller groups 6 and 7 symmetrically mounted, and is transported upright by rotation of the upright roller groups 6 and 7. The upright roller groups 6 and 7 are provided with elastic members 8, 9, 10 and 11 for contacting and guiding the glass substrate 5 while being in contact with the smooth surfaces on both sides of the glass substrate 5. The upper and lower ends of the glass substrate 5 are supported by an upper roller group 12 and a lower roller group 13, respectively. In addition, A shows the cross-sectional structure of the upper roller group 12, and B shows the cross-sectional structure of the lower roller group 13. In these figures, the upper end of the glass substrate 5 is
The lower end of the glass substrate 5 is engaged with a buffer member 17 provided in the groove 16 of the lower roller group 13. Thereby, the upper and lower ends of the glass substrate 5 are guided without blurring. Further, when the central portion of the glass substrate 5 is blurred in the horizontal direction, guide wires 18, 19, 20, 21 covered with a protective cover are provided so as to suppress the amplitude of the blur. The upright roller groups 6 and 7 are driven to rotate by a driving method such as a chain drive or a belt drive.
Illustration of these drive mechanisms is omitted. FIG.
It is a side view of the example of the present invention. As is clear from this figure, the glass substrate 5 is conveyed in the direction of the arrow (←) while being held upright by the rotation of the group of upright rollers 6 and 7 while being held between the upright rollers 6 and 7. FIG. 5 is a plan view of the transport state shown in FIG. 4 as viewed from above. In this figure,
The state where the glass substrate 5 is transferred from the cleaning step or the peeling step to the next step in the liquid tank 22 is shown. When the glass substrate 5 approaches the carry-out port 23, a sensor (not shown) senses the signal, and the detected signal is transmitted to the slide door drive unit 24, and in response to this signal, the slide door drive unit 24 responds. Is activated, thereby causing the sliding door 2
5 is opened, and the glass substrate 5 is conveyed to the next process line.
Further, the guide wires 18 to 21 are fixed by guide wire supports 26 to 29 fixed to the inner wall of the liquid tank 22.
The glass substrate 5 is tensed in a constant tension state, so that blurring of the glass substrate 5 is suppressed. The liquid in the liquid tank 22 is discharged by the open state of the slide door 25, but is collected by a discharged liquid collecting mechanism (not shown) and reused or stored in a fixed container.

[0008]

According to the present invention, the upright transfer of the glass substrate can be realized with a simple mechanism, and the problem of cracking of the glass substrate in the liquid has been solved. In addition, the transfer method and the transfer device can reduce the floor area in the liquid crystal cell manufacturing process. That is, planar transport requires a planar space equal to or larger than the area of the glass substrate, but in the present invention, it is possible to provide two or more parallel transport lines (not shown) in the liquid tank, It is possible to reduce the floor area in the manufacturing process.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conventional glass substrate transfer method.

FIG. 2 is a side view showing a conventional glass substrate transfer method.

FIG. 3 is a front view showing an embodiment of the present invention.

FIG. 4 is a side view showing an embodiment of the present invention.

FIG. 5 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Glass substrate 2, 3, 4 ... Roller 5 ... Glass substrate 6, 7 ... Upright roller group 8, 9, 10, 11 ... Elastic member 12 ... Upper roller group 13 ... Lower roller group 14 ... Groove 15 ... Buffer member 16 … Groove part 17… Buffer member 18, 19, 20, 21… Guide wire 22… Liquid tank 23… Unloading port 24… Slide door drive unit 25… Slide door 26, 27, 28, 29

Claims (13)

[Claims] 1. A glass substrate upright transfer method comprising transferring a glass substrate in an upright state. 2. The method according to claim 1, wherein a glass substrate for a liquid crystal cell is transferred. 3. The glass substrate upright transfer method according to claim 1, wherein a guide wire is provided parallel to a side surface of the glass substrate and at a predetermined interval. 4. The method according to claim 3, wherein the surface of the guide wire is covered with a protective cover. 5. The glass substrate is characterized in that the smooth surfaces on both sides of the glass substrate are respectively sandwiched by a plurality of upright rollers, the glass substrate is made upright, and the glass substrate is transported upright by rotation of the upright roller. Glass substrate upright transfer method. 6. A glass substrate upright transfer device for transferring a glass substrate in an upright state. 7. The glass substrate upright transfer device according to claim 6, wherein the glass substrate for a liquid crystal cell is transferred. 8. The glass substrate upright transfer device according to claim 6, wherein the upper and lower ends of the glass substrate are supported by a plurality of upper rollers and lower rollers, respectively. 9. A glass substrate upright transfer device for transferring a glass substrate in an upright state. 10. The glass substrate upright transfer device according to claim 6, wherein the glass substrate for a liquid crystal cell is transferred. 11. Parallel to a side surface of the glass substrate,
7. The glass substrate upright transfer device according to claim 6, wherein a guide wire is provided at a predetermined interval. 12. The glass substrate upright transfer device according to claim 11, wherein a protective cover is coated on a surface of said guide wire. 13. The glass substrate is characterized in that the smooth surfaces on both sides of the glass substrate are respectively sandwiched by a plurality of upright rollers, the glass substrate is made upright, and the glass substrate is transported upright by rotation of the upright roller. Glass substrate upright transfer device.