KR20130063642A

KR20130063642A - Fume leakage proctection schemes for roll-brush actuator

Info

Publication number: KR20130063642A
Application number: KR1020110130110A
Authority: KR
Inventors: 노진성
Original assignee: 주식회사 케이씨텍
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2013-06-17

Abstract

PURPOSE: A fume leakage prevention structure for a roll-brush actuator is provided to improve the reliability of a device and to prevent damage to a motor by preventing the outflow of fume. CONSTITUTION: A fume leakage prevention structure for a roll-brush actuator comprises a housing and a fume blocking cover(80). The housing transfers the driving force of a motor(30) to a roll brush driving shaft(60) through a power transmission shaft(40) to rotate a roll brush. The housing is positioned outside the roll brush driving shaft to rotationally support the roll brush driving shaft. The fume blocking cover has an O-ring(81) connected to the roll brush driving shaft and prevents the outflow of fume along the roll brush driving shaft while rotating with the roll brush driving shaft. An insertion groove(72) is formed in the end of the housing. A protruded part(82) is protruded from the fume blocking cover and is inserted into the insertion groove to prevent the outflow of the fume.

Description

Fume leakage proctection schemes for roll-brush actuator

The present invention relates to a fume leakage prevention structure of the roll brush driving unit, and more specifically, by connecting the fume blocking cover and the housing provided on the roll brush driving shaft in a bent structure, the fume generated from the roll brush side can be prevented from flowing into the motor. It relates to a fume leakage prevention structure of the roll brush drive.

In general, as a method for cleaning a large-area glass substrate used in the manufacture of flat panel displays, a non-contact cleaning method using cleaning water or a cleaning liquid and a contact cleaning method for removing foreign substances by directly contacting the brush with the surface of the glass substrate are known. .

The roll brush module generally used in the contact cleaning method includes a roll brush contacting the upper and lower portions of the glass substrate, and the structure is arranged in several stages to clean the glass substrate.

When washing the roll brush module, the washing water is also supplied, and when this washing water flows into the motor driving the roll brush, it causes a failure. Therefore, structures that prevent the outflow of fume are applied to the driving shaft that transmits the power of the driving unit. Doing.

In order to prevent the outflow of the fume, a roll brush is provided by adding a sealing cap of rubber material to one side of the base plate which blocks between the cleaning space in which the roll brush is located and the driving unit in which the motor is located. Even if it moves up and down, the structure which can block the outflow of a fume by maintaining the airtight state of the long hole of the base plate is disclosed.

The addition of such a sealing cap can prevent the fume from leaking through the long hole provided in the base plate for the vertical movement of the roll brush, but connecting the drive shaft of the roll brush, the rotating shaft of the motor and the drive shaft and the rotating shaft There is a minute gap between the rotating part that must be rotated, such as a coupling structure, and the fixing part that does not rotate and supports the rotating part, and the fume may leak into the gap.

As described above, when the fume flows out through the gap between the fixing part and the rotating part and the fume flows into the motor, a failure of the motor may occur.

In order to prevent the outflow of fume as much as possible, conventionally, a sealing cap is used as well as a fume blocking cover that is in contact with the outer surface of the roll brush drive shaft by O-ring. When described in detail with reference to the accompanying drawings as follows.

1 is a cross-sectional view of a fume leakage prevention structure of a conventional roll brush.

Referring to FIG. 1, a fume leakage prevention structure of a conventional roll brush includes a base plate 10 provided with a long hole 11 and a rotation shaft 31 of a motor 30 inserted into the long hole 11 to generate a driving force. A power transmission shaft 40 connected to the first coupling 32 to transmit power, and the power transmission shaft 40 is rotatable by a bearing 41, and the power transmission shaft 40 ) And a sealing cap 20 for sealing a part of the long hole 11 between the base plate 10 and the first housing 42 and the second coupling 50. It is coupled to the power transmission shaft 40 through the roll brush driving shaft 60 for rotating the roll brush (not shown) connected to the other side by receiving power, and one end is connected to the first housing 42 Located outside the second coupling 50 and the roll brush drive shaft 60 to protect the second coupling 50 and the roll brush drive shaft 60, the second bearing (71) A second housing 70 for supporting the roll brush drive shaft 60 in a rotatable state and a portion of an outer surface of the roll brush drive shaft 60 spaced apart from the second housing 70, A plurality of O-rings 81 surrounding the outer diameter of the brush drive shaft 60 is provided to include a fume blocking cover 80 to prevent the fume from leaking through the roll brush drive shaft 60.

Hereinafter, the configuration and operation of the fume leakage preventing structure of the conventional roll brush configured as described above will be described in more detail.

First, the base plate 10 divides the cleaning space in which the substrate is cleaned by the roll brush and the drive space in which the motor 30 driving the roll brush is located, and the base plate 10 has a roll brush. The long hole 11 is provided to enable the vertical movement of the.

The first housing 42 is inserted into the long hole 11, and a power that is connected to and rotated by the rotary shaft 31 of the motor 30 and the first coupling 32 inside the first housing 42. The transmission shaft 40 is provided.

A first bearing 41 is provided between the first housing 42 and the power transmission shaft 40 so that the inner power transmission shaft 40 smoothly rotates while the first housing 42 is fixed. can do.

When the roll brush moves up and down, the motor 30 must also move up and down, and thus, the motor 30 is accommodated in the motor housing 33 and moved as the motor housing 33 moves up and down.

The long hole 11 is sealed by a sealing cap 20 of rubber material, one end of the sealing cap 20 is fixed to the base plate 10 by the first fixing plate 21, the other end is made of The second fixing plate 22 is fixed to the outside of the first housing 42.

The power transmission shaft 40 is connected to the roll brush drive shaft 60 by the second coupling 50 to rotate the roll brush drive shaft 60.

The drive shaft 60 and the second coupling 50 are protected inside the cylindrical second housing 70, and the drive shaft 60 and the second coupling (with the second housing 70 fixed). The bearing 71 is provided so that 50 may rotate.

In such a structure of power transmission, a fume blocking cover 80 is provided at a part of the outer diameter of the roll brush driving shaft 60. The fume blocking cover 80 provides a plurality of O-rings 81 in contact with the roll brush driving shaft 60 to rotate the motor along the surface of the roll brush driving shaft 60 when the substrate is cleaned with a roll brush. It is possible to block the movement of the fume to the (30) side.

However, when the fume exceeds the fume blocking cover 80, the fume may flow into the gap between the second housing 70 and the roll brush drive shaft 60, and the introduced fume may be introduced into the second housing 70. And a gap between the second coupling 50 and the gap between the power transmission shaft 40 and the first housing 42 may flow out to the motor 30.

Therefore, the conventional fume outflow prevention structure of the roll brush is not able to completely block the outflow of the fume, there is a risk of failure of the motor 30 there is a problem that the reliability of the device is lowered.

The technical problem to be solved by the present invention in consideration of the above problems is to provide a fume outflow prevention structure of a roll brush that can completely block the outflow of the fume from the cleaning space in which the substrate is cleaned by the roll brush.

The fume outflow prevention structure of the roll brush of the present invention for solving the above problems, the driving force of the motor is transmitted to the roll brush drive shaft through the power transmission shaft to rotate the roll brush, the roll brush driving shaft is located outside the A fume blocking cover for preventing the flow of fume along the roll brush drive shaft while rotating together with the roll brush drive shaft, including a housing supporting the roll brush drive shaft in a rotatable state and an O-ring contacting a part of the roll brush drive shaft. In the fume outflow prevention structure of the roll brush comprising a; inserting groove provided in the end of the housing, and protruding inserting portion protruding from the fume blocking cover is inserted into the insertion groove to block the outflow of the fume.

The present invention structurally blocks the inflow of the fume between the fume blocking cover for preventing the outflow of the fume along the surface of the roll brush drive shaft and the second housing located outside the roll brush drive shaft, thereby preventing the outflow of the fume. By improving the reliability of the device, there is an effect that can prevent the motor from being damaged by the outflow of the fume.

In another aspect, the present invention by supplying air between the rotating part to rotate and the fixed part that is fixed without rotating to protect the rotating part, by preventing the flow of the fume by the positive pressure of the supplied air, to prevent the outflow of the fume There is an effect that can be completely blocked to improve the reliability of the device.

1 is a cross-sectional view of a fume leakage prevention structure of a conventional roll brush.
2 is a cross-sectional view of a fume leakage prevention structure of a roll brush according to a preferred embodiment of the present invention.
3 is a cross-sectional view of a fume leakage prevention structure of a roll brush according to a preferred embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the fume outflow prevention structure of the roll brush of the present invention will be described in detail.

2 is a cross-sectional view of a fume leakage prevention structure of a roll brush according to a preferred embodiment of the present invention.

Referring to FIG. 2, the fume leakage prevention structure of the roll brush according to the preferred embodiment of the present invention includes a base plate 10 provided with a long hole 11 and a motor inserted into the long hole 11 and generating a driving force ( The power transmission shaft 40 and the power transmission shaft 40 which are connected to the rotary shaft 31 of the 30 through the first coupling 32 to transmit power, and the power transmission shaft 40 are rotatable by the bearing 41, A first housing 42 for protecting the power transmission shaft 40, a sealing cap 20 for sealing a portion of the long hole 11 between the base plate 10 and the first housing 42, A roll brush driving shaft 60 coupled to the power transmission shaft 40 through a second coupling 50 to rotate a roll brush (not shown) connected to the other side, and the first housing 42. One end is connected to the second coupling 50 and the roll brush driving shaft 60 to be located outside the second coupling 50 and the roll brush driving shaft 60. A second housing which protects the shaft 60, supports the roll brush drive shaft 60 in a rotatable state by a second bearing 71, and an insertion groove is provided at an end of the roll brush drive shaft 60 side ( 70) and a plurality of O-rings 81 provided on a portion of an outer surface of the roll brush drive shaft 60 spaced apart from the second housing 70 and surrounding the outer diameter of the roll brush drive shaft 60. 2 is provided with a protrusion insertion portion 82 is inserted into the insertion groove 72 of the housing 70, to prevent the fume flowing out of the roll brush drive shaft 60, and the roll brush drive shaft 60 and the And a fume blocking cover 80 for blocking the outflow of the fume into the gap between the second housings 70.

Hereinafter, the configuration and operation of the fume outflow prevention structure of the roll brush according to the preferred embodiment of the present invention configured as described above in more detail.

The roll brush drive shaft 60 and the second coupling 50 are protected inside the cylindrical second housing 70, and the drive shaft 60 and the second couple are fixed in a state in which the second housing 70 is fixed. The bearing 71 is provided so that the ring 50 can rotate.

An insertion groove 72 is provided at the end of the second housing 70. The insertion groove 72 is provided in a circular shape along the side end of the cylindrical second housing 70, but is shown as a single groove in the figure, the radius from the rotation center of the roll brush drive shaft 60 is different from each other It can be composed of multiple grooves.

The insertion groove 72 is inserted into the protrusion insertion portion 82 protruding from the side of the fume blocking cover 80. At this time, the second housing 72 is configured to be fixed without rotation, and the fume blocking cover 80 is rotated together with the roll brush drive shaft 60, so that the insertion groove 72 and the protrusion insertion portion ( 82) Ensure that there are no bent gaps but bent gaps.

As such, the bent gap between the insertion groove 72 and the protruding insertion portion 82 is different from the traveling direction of the fume flowing along the rotating roll brush drive shaft 60, and the fume is along the bent gap. It is in a difficult state to be discharged to the outside.

Therefore, it is possible to further prevent the outflow of the fume compared to the prior art to improve the reliability of the device.

3 is a cross-sectional view of a fume leakage prevention structure of a roll brush according to another embodiment of the present invention.

Referring to FIG. 3, the fume leakage prevention structure of the roll brush according to another embodiment of the present invention is configured to further include a pressing unit 90 in the configuration of the preferred embodiment of the present invention described in detail with reference to FIG. 2.

The pressing unit 90 has a bearing 91 such that the rotating shaft 31 of the motor 30 is rotatable, and is provided inside the motor housing 33 to accommodate the first coupling 32. An air supply tube 92 is provided inside the case to supply purified air from the outside.

Pressurized air supplied through the air supply tube 92 is supplied to the second coupling 50 side through a bearing 41 between the first housing 42 and the power transmission shaft 40. The second coupling 50 and the second housing 70 and the roll brush drive shaft 60 and the second housing 70 is supplied through a gap.

The purified air thus supplied is transferred to the bent gap between the protrusion insertion portion 82 of the fume blocking cover 80 and the insertion groove 72 of the second housing 70 described above, By increasing the internal pressure, it is possible to completely prevent the fume from being discharged to the motor 30 side between the insertion groove 72 and the protruding insertion portion 82.

Therefore, the present invention completely blocks the outflow of the fume, thereby improving the reliability of the apparatus and preventing the failure of the motor.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

10: base plate 11: long hole
20: sealing cap 21: first fixing plate
22: the second broken plate 30: motor
31: rotating shaft 32: first coupling
33: motor housing 40: power transmission shaft
41: bearing 42: first housing
50: second coupling 60: roll brush drive shaft
70: second housing 71: bearing
72: insertion groove 80: fume blocking cover
81: O-ring 82: protrusion insert
90: pressure part 91: bearing
92: air supply tube

Claims

A housing for transmitting the driving force of the motor to the roll brush drive shaft through a power transmission shaft to rotate the roll brush, positioned outside a part of the roll brush drive shaft to support the roll brush drive shaft in a rotatable state, and a part of the roll brush drive shaft. In the fume leakage prevention structure of the roll brush comprising a fume blocking cover for preventing the flow of fume along the roll brush drive shaft while rotating with the roll brush drive shaft including an O-ring in contact with,
An insertion groove provided at an end of the housing;
The fume leakage prevention structure of the roll brush further protruding from the fume blocking cover further inserted into the insertion groove to block the outflow of the fume.

The method of claim 1,
The insertion groove
A fume outflow prevention structure of a roll brush, characterized in that a plurality of grooves having different radii from the center of rotation of the roll brush drive shaft.

The method of claim 1,
Fume leakage prevention structure of the roll brush, characterized in that the bent gap is provided between the insertion groove and the protruding insertion portion.

4. The method according to any one of claims 1 to 3,
And a pressurizing part for supplying pressurized air between the housing and the rollbrush drive shaft.

5. The method of claim 4,
The pressing portion
The bearing is provided so that the rotating shaft of the motor rotates, the case located between the motor and the power transmission shaft, the fume of the roll brush, characterized in that it comprises an air supply tube for supplying purified air in the case Spill prevention structure.