JP2011131144A - Roller brush for washing glass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roller brush for washing glass which reduces its weight and improves operability and productivity. <P>SOLUTION: The roller brush for washing glass which rotates around a center axis to wash the surface of a glass substrate includes a cylindrical roller shaft 2, and a brush sheet 3 fixed to the peripheral surface of the roller shaft 2 by an adhesive so as to cover the peripheral surface. The brush sheet 3 is configured by knitting bristle materials into a woven fabric, and the bristle materials are radially arranged on the roller shaft 2 so that their tip ends face the outside in the radial direction of the roller shaft 2. The roller shaft 2 is obtained by covering a pipe made of carbon with a film made of stainless steel. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a glass cleaning roller brush used for cleaning a glass surface in a manufacturing process of a flat display device such as a liquid crystal display device (LCD) and a plasma display device (PDP).

  In the manufacturing process of a liquid crystal display device or the like, the deposits adhering to the surface of the glass substrate are removed by a roller brush. For example, a glass substrate having a thickness of about 0.7 to 1.5 mm is transported in a horizontal direction at a high speed, and a pair of roller brushes are opposed to each other with the glass substrate interposed therebetween and rotated. The roller brush is rotated at a rotational speed of, for example, 300 rpm so that the shaft is disposed perpendicular to the glass substrate transport direction and the brush sweeps the surface of the glass substrate in the opposite direction to the glass substrate transport direction. To drive. The bristle material constituting the brush is made of nylon (trade name: polyamide fiber) having a wire diameter of, for example, 0.05 mm. The bristle material rubs the surface of the glass substrate to remove deposits on the surface of the glass substrate.

  The conventional roller brush has two types of modes in which the bristle material is attached to the roller shaft, and there are a flocking type roller brush and a channel type roller brush due to the mode of attaching the bristle material (Patent Document 1). The flocking type roller brush disclosed in Patent Document 1 is formed with a number of grooves on the circumferential surface of the roller shaft, the bristle material is folded back into a U shape, and the folded side is inserted into the groove, and the bristle material folded in this groove A pin is inserted into the part to fix the hair material in the groove. On the other hand, a channel-type roller brush has a band-shaped metal band formed into a channel with a U-shaped cross-section by raising both end portions in the width direction, and this channel is spirally formed along the peripheral surface of the roller shaft. After winding and fixing, a bristle material folded back in a U shape is inserted into the U-shaped groove from the folded side, and the wire is fixed to the roller shaft through the wire inside the bent portion of the bristle material. The bristle material is fixed to the shaft by bending the U-shaped side surface so that the upper end opening is narrowed.

JP 2007-38207 A

  However, the conventional roller brush described above has a problem that its weight is heavy. For example, in the channel type roller brush, even if the channel is made of metal and the roller brush has a length of 3 m, the weight of the brush portion excluding the roller shaft is as much as 20 kg, which is very heavy.

  Recently, along with the increase in the size of liquid crystal display screens, roller brushes used for cleaning glass substrates have also become longer. For this reason, the heavy weight of roller brushes hinders workability and productivity. ing.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a glass cleaning roller brush with reduced weight and improved workability and productivity.

  A glass cleaning roller brush according to the present invention is a glass cleaning roller brush that rotates around a central axis and cleans the surface of a glass substrate. A cylindrical roller shaft and a peripheral surface of the roller shaft. A brush sheet directly fixed by an adhesive so as to cover the brush sheet, and the brush sheet is formed by weaving a bristle material into a woven fabric. The roller shafts are arranged radially so as to extend outward in the radial direction.

  In this glass cleaning roller brush, the roller shaft is constituted by, for example, covering a carbon pipe with a stainless steel film.

  In the present invention, a bristle material is knitted into a woven fabric to constitute a brush sheet, and this brush sheet is directly bonded to a roller shaft to constitute a roller brush in which the bristle material is planted. For this reason, the portion of the brush sheet is extremely lightweight. Therefore, it is possible to obtain a glass cleaning roller brush with extremely excellent workability and productivity.

It is a perspective view showing the whole roller brush concerning an embodiment of the present invention. Similarly, it is the perspective view which expands and shows the edge part of the roller brush. Similarly, it is a perspective view which shows the flocked state of the brush sheet. Similarly, it is sectional drawing which shows the flocking aspect of the brush sheet. Similarly, it is sectional drawing which shows the other flocking aspect of the brush sheet. Similarly, it is sectional drawing which shows the other flocking aspect of the brush sheet.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. As shown in FIGS. 1 to 4, the roller brush 1 of the present embodiment has a length of 8 m, for example, and the brush sheet 3 is directly fixed to the peripheral surface of the roller shaft 2 by an adhesive. Has been. The brush sheet 3 is a sheet having a predetermined width, is spirally wound around the circumferential surface of the roller shaft 2, and is arranged so that there is no gap between the brush sheets 3. The peripheral surface is covered.

  The roller shaft 2 has a rotating shaft 4 coaxially and integrally formed with the roller shaft 2 on end surfaces of both end portions in the axial direction, and the roller brush 1 is formed on both outer end portions of the rotating shaft 4. An attachment plate 5 for attaching the motor to the drive device is formed integrally with the rotary shaft 4 with its surface perpendicular to the rotary shaft 4.

  On the other hand, the brush sheet 3 has a hair material 12 knitted into a fabric 11 and the hair material 12 is planted in a state of standing up from the fabric 11. As the hair material 12, for example, a nylon fiber having a wire diameter of 0.07 mm can be used. Examples of the flocking mode of the bristle material 12 with respect to the fabric 11 include those shown in FIGS. 4 to 6. In the flocking mode shown in FIG. 4 (a), ground weft yarns 22 (yarns extending in the horizontal direction in parallel to the paper surface in the drawing) are alternately arranged with the ground warp yarns 21 (yarns arranged perpendicular to the paper surface in the drawing). A ground texture is formed by crossing, and pile wefts 23 are knitted into this ground texture. The pile weft 23 is knitted so that, for example, it passes under a specific ground warp 21 and then jumps over three ground warps 21 and passes under a fourth ground warp 21. Then, as shown in FIG. 4 (b), when the central portion of the pile weft 23 is cut, the flocking is carried out so that the pile weft 23 is perpendicular to the surface of the ground structure. A brush sheet is obtained. This pile weft 23 becomes a hair material. As shown in FIG. 4 (c), in this hair transplantation mode, if there is a hair material 25 that has just passed through one ground warp yarn 21, the hair material 25 is alternately engaged with three ground warp yarns 21. Some have done.

  In the flocking mode shown in FIG. 5A, the ground warp yarns 31 are arranged in two upper and lower stages, and the ground weft yarns 32 are entangled with these ground warp yarns 31 to constitute a ground structure. Then, pile wefts 33 are knitted so as to pass under the upper warp 31 and form a loop in the middle of the upper warp 31. A wire 34 shown in FIG. 5C is driven into each loop of the pile weft 33. A blade 35 is formed at the rear end of the wire 34. By pulling out the wire 34, the blade 35 cuts the loop portion of the pile weft 33, and a flocking similar to that shown in FIG. 4B is obtained.

  In this case, as shown in FIG. 5B, a pile weft 42 is woven into the ground warp 41, and a wire 44 having a recess 45 formed at the upper end in the loop 43 of the pile warp 42 is driven into the recess 45. The loop 43 of the pile weft thread 42 may be cut by driving a blade.

  In the flocking mode shown in FIG. 6 (a), a group of ground warp yarns 51a and another group of ground warp yarns 51b are arranged in two upper and lower stages, and the respective warp yarns 51a and 51b are plain woven with ground weft yarns 52a and 52b, respectively. To do. Then, the pile weft 53 is alternately passed over the upper ground warp 51a and the lower ground warp 51b, and the pile weft 53 is cut between the upper and lower stages as shown in FIG. 6B. Thus, two pile fabrics can be obtained, and two brush sheets can be obtained.

  The roller shaft 2 is, for example, a carbon pipe covered with a stainless steel film. This carbon pipe is formed of, for example, pitch-based carbon, and this pitch-based carbon has an advantage that the moment of inertia is small because of its small deflection and light weight.

  The roller shaft 2 in which the carbon pipe is coated with a stainless film is formed by fitting a stainless steel pipe having a thickness of 0.5 mm to a carbon pipe having a thickness of 5 mm and a diameter of 100 mm, and press-fitting, for example. Can be manufactured. Alternatively, a stainless steel strip having an appropriate width may be spirally wound around the peripheral surface of the carbon pipe so that the carbon pipe is covered with stainless steel. If the carbon pipe is exposed, when the roller brush is used for cleaning the semiconductor wafer, the carbon comes into contact with alkaline water having a pH of about 14 and pulverization occurs. This stainless steel coating is for preventing such powdering of carbon.

  In addition, the pitch-based carbon is used for the base portion that bears the strength of the roller shaft 2 because the pitch-based carbon is light and has high rigidity. For example, the roller shaft 2 having a length of 8 m is used. This is because there is an advantage that there is little blurring of the central part when the is rotated at high speed.

  In the glass cleaning roller brush 1 of the present embodiment configured as described above, the upper and lower surfaces of the glass substrate that are arranged in parallel in a pair vertically and are passed between them at high speed are rotated by the roller brush 1. The brush is rubbed and cleaned by driving. The roller brush 1 rubs the surface of the glass substrate in a direction opposite to the moving direction at a high speed of, for example, 400 rpm. At this time, according to this embodiment, the roller shaft 2 is lightweight, and the brush sheet 3 is made by weaving a bristle material into a woven fabric and does not use a metal channel. Extremely lightweight. For example, the brush sheet 3 has a weight of about 5 kg in a roller brush having a length of 8 m. Therefore, the roller brush 1 of the present embodiment is lightweight as a whole, and can be easily handled even when the size of the roller brush 1 is increased for cleaning a large-sized liquid crystal display device. The glass substrate of the liquid crystal display screen can be cleaned. Thereby, a glass substrate having a large area can be cleaned safely and evenly.

  The roller shaft 2 does not necessarily use a carbon pipe, and since the brush sheet itself does not use a channel and is lightened, the weight of the roller brush can be reduced.

  Since the present invention is a lightweight and highly rigid roller brush, it is extremely useful when cleaning large areas such as glass substrates and semiconductor wafers of liquid crystal display devices.

1: Roller brush 2: Roller shaft 3: Brush sheet 4: Rotating shaft 5: Mounting plate 11: Fabric 12: Bristle material 21, 31, 41, 51a, 51b: Ground warp yarns 22, 32, 42, 52a, 52b : Weft 23, 33, 43, 53: Pile weft 25: Hair material

Claims (2)

In a glass cleaning roller brush that rotates around the central axis and cleans the surface of the glass substrate, it is directly fixed by a cylindrical roller shaft and an adhesive so as to cover the peripheral surface of the roller shaft. The brush sheet is formed by weaving a bristle material into a woven fabric, and the bristle material has the roller shaft so that the tip of the bristle is directed outward in the radial direction of the roller shaft. The glass cleaning roller brush is arranged radially. 2. The glass cleaning roller brush according to claim 1, wherein the roller shaft is configured by covering a carbon pipe with a stainless steel film. 3.

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