CN1305589C - Arrangement for cleaning flat surface display panel - Google Patents

Abstract

A cleaning device for a flat display panel, comprising a roller brush rotatably installed on the board advancing channel and a drive unit installed inside the roller brush for transmitting rotational force to the roller brush during cleaning.

Description

Cleaning device for flat display panels

technical field

The invention relates to a cleaning device for a flat display panel, in particular to a cleaning device designed in a compact structure for effectively removing impurities on a flat display panel.

Background technique

Generally, a cleaning device for a flat display panel is designed to use a roller brush to remove impurities attached to the flat display panel. The device is arranged in the cleaning equipment, that is, in the washing tank, corresponding to the plate conveying part, and separated from the drying device and other parts.

Roller brushes use the cleaning agent in the cleaning section to brush impurities away from the surface. The roller brush can be placed horizontally on at least one of the upper and lower surfaces of the horizontal board along the conveying direction of the board to clean at least one surface of the board.

The roller brush includes a main body with cleaning bristles around the main body and drive shafts extending horizontally from both ends of the main body.

The drive shaft of the roller brush is connected to the output end of the drive unit through a coupling member, such as a coupling. Therefore, when the drive unit is working, the roller brush rolls to brush away impurities from the surface of the board.

The driving unit can be a motor placed outside the washing tank, which transmits torque to the roller brush. Such a cleaning device can be installed between individual stages of processing boards, or as a stand-alone device for separate cleaning stages.

However, in the conventional cleaning device, since the driving unit for driving the roller brush is designed to transmit torque outside the washing tank in which the plate is driven, the power transmission unit is very complicated and occupies a large space in the cleaning area. Moreover, since the internal structure of the power transmission unit (ie, coupling or bearing) and the roller brush inserted into the drive shaft are exposed, the cleaning agent can easily corrode the power transmission unit and reduce the durability of the power transmission unit.

Corrosion to these parts can also cause contamination of the cleaning agent, reducing cleaning efficiency.

Contents of the invention

Therefore, the present invention aims to solve the above-mentioned problems of the prior art.

Accordingly, an object of the present invention is to provide a cleaning device for a flat display panel, which has a simple structure and improves power transmission efficiency and cleaning efficiency.

In order to achieve the above object, the present invention provides a cleaning device for a flat display panel, comprising: a roller brush rotatably installed on the advancing channel of the panel; A drive unit that transmits rotational force to the brush.

Preferably, the driving unit includes: a supporting shaft for supporting the rolling brush, a driving source for generating rotational force and fixed on the supporting shaft, and a power transmission assembly for transmitting torque from the driving source to the rolling brush. The power transmission assembly is in physical contact with the roller brush to transmit the torque of the driving source to the roller brush.

Preferably, the power transmission assembly consists of a friction wheel assembly or a pair of meshing gears.

The inside of the roller brush is waterproof, and the support shaft and the output shaft of the driving source have the same longitudinal axis as the rotation axis of the roller brush.

Preferably, the driving source is an electric motor, and more than one driving unit is installed in a single roller brush.

Description of drawings

The following drawings are used to further understand the present invention, are included in this application, constitute a part of this application, illustrate embodiments of the present invention, and explain the principle of the present invention together with the specification. in:

1 is an overall perspective view of a cleaning device for a flat display panel according to an embodiment of the present invention;

2 is a cross-sectional view of the internal structure of a roller brush used in a cleaning device for a flat display panel according to an embodiment of the present invention;

Fig. 3 is a perspective view partially cut away of the drive unit shown in Fig. 2;

Fig. 4 is a local enlarged view of the roller brush shown in Fig. 1 fixed in the washing tank;

Fig. 5 is a sectional view illustrating the cleaning operation of the roller brush using the driving unit shown in Fig. 2; and

FIG. 6 is an enlarged view of a driving unit according to another embodiment of the present invention.

Detailed ways

Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Referring to FIGS. 1 to 3 , the cleaning device of the present invention includes: a roller brush 2 rotatably arranged on a conveying channel of a board P, and a driving unit 4 arranged in the roller brush 2 for rotating the roller brush 2 .

In this embodiment, the roller brushes 2 are used in pairs, respectively corresponding to the upper surface and the lower surface of the plate P, and the plate P moves in one direction of the washing tank B.

The boards P are moved horizontally in the tank B by known belt transfer rollers (not shown). Installed in the tank B are a detergent supply unit for supplying detergent to the roller brush 2 and an air knife for removing residual water on the board P before and after the cleaning operation.

The roller brush 2 comprises a cylindrical tube around which cleaning bristles 6 are fixed. The width of the roller brush 2 is equal to or greater than that of the board P, so that the roller brush 2 can brush the entire surface of the board P.

The drive unit 4 includes: a support shaft 8 for supporting the roller brush 2, a drive source 10 for generating rotational force and fixed on the support shaft 8, and a power transmission for transmitting torque from the drive source 10 to the roller brush 2 Component 12. In this embodiment, as shown in FIG. 2 , one roller brush 2 is equipped with two drive units 4 .

The support shaft 8 is used to rotatably support the roller brush 2 and fix the driving source 10 . The support shaft 8 is inserted into the roller brush 2 using a bearing built into the roller brush 2 .

The support shaft 8 protrudes from the roller brush 2 and is fitted in the support bracket 16 so as to rotatably support the roller brush 2 in the washing tank B. As shown in FIG. Here, as shown in FIG. 4, the support shaft 8 is fitted in the support bracket 16, and is firmly fixed by a coupling member such as a set screw.

Although not shown in the drawings, the support bracket 16 may be moved toward or away from the board P by a cylinder or the like. That is, in the cleaning mode, the cylinder moves the roller brush so that the roller brush touches the plate P. In the non-cleaning mode, the cylinder moves the brush so that it moves away from the plate P.

When a motor is used as the drive source 10 and the motor is provided in the roller brush 2 , a shaft is provided on the same axis as the support shaft 8 . In this embodiment, as shown in FIG. 2 , the drive source 10 is fitted in a housing 18 in the roller brush 2 .

The housing 18 is made as a cylinder having an open end fitted around the support shaft 8 , and the housing 18 fixes the drive source 10 to the support shaft 8 of the roller brush 2 .

Although not shown in the drawings, the driving source 10 can be firmly fixed in the housing 18 by using set screws.

As shown in FIG. 3 , the power line of the driving source 10 extends through the central axis hole of the support shaft 8 and is connected to a control unit (not shown) for controlling the driving source 10 .

The power transmission assembly 12 is connected with a driving source (motor shaft), and transmits torque to the roller brush 2 . In this embodiment, the power transmission assembly 12 includes a driving wheel 12a and a friction assembly 12b assembled around the driving wheel 12a to transmit torque to the roller brush 2 .

The driving wheel 12a is made as a conventional wheel, the diameter of which is suitable for the inner diameter of the roller brush 2 .

The driving wheel 12a is fixed to the driving source 10 (motor shaft) in the roller brush 2, and is made of light and durable metal or synthetic resin.

The friction member 12b is made into a ring shape fitted around the drive wheel 12a, and is made of rubber or synthetic resin that prevents any slippage during power transmission by contacting the inner circumference of the roller brush 2.

The friction member 12b has a circular or polygonal portion that can efficiently transmit rotational force by contacting the inner circumference of the rolling brush.

The friction assembly 12b is made with a suitable size, so that when the friction assembly 12b is arranged in the roller brush 2, the friction assembly 12b can provide a biasing force toward the inner circumference of the roller brush 2. When the biasing force of the friction member 12b is too small, the contact force between the friction member 12b and the inner circumference of the roller brush 2 is broken, so that the rotational force cannot be efficiently transmitted due to slippage between them. On the contrary, when the biasing force of the friction assembly 12b is too large, it is difficult to arrange the driving unit 4 in the roller brush 2 .

Referring to FIG. 3 , both ends of the roller brush 2 are sealed by a cover 20 . The cover 20 is detachably installed on both ends of the roller brush 2 . Here, the support shaft 8 rotatably passes through the center of the cover 20 .

When the cover 20 is installed on the roller brush 2 , a conventional rubber ring for waterproofing is inserted between the cover 20 and the roller brush 2 .

By installing the cover 20 at both ends of the roller brush 2, the inner space of the roller brush 2 is separated from the outside and sealed, thereby preventing the cleaning agent from entering the roller brush 2 and preventing the inner surface of the driving unit 4 and the roller brush 2 from being corroded.

The operation of the driving unit 4 for rotating the roller brush 2 when the board P passes through the cleaning area will be described below.

As shown in FIG. 1, when the board P enters the cleaning area, the driving source 10 is operated to generate a rotational force.

The rotational force is transmitted to the driving wheel 12a of the power transmission assembly 12, thereby rotating the driving wheel 12a. Here, since the friction member 12b is in contact with the inner circumference of the roller brush 2 by a predetermined biasing force, the rotational force of the driving wheel 12a is transmitted to the roller brush through the friction member 12b, thereby rotating the roller brush 2 and causing the roller brush 2 to rotate through the support shaft 8. The cleaning operation is carried out horizontally in the sink.

The drive unit 4 is designed so that the pair of roller brushes 2 rotates in the forward direction of the board P as shown in FIG.

That is, the cleaning of the board P is completed as the board P passes through the rotating roller brush 2 provided with cleaning agent.

Here, since the inner area of the roller brush 2 is sealed by the cover, corrosion of the drive unit 4 by cleaning agents can be prevented.

By preventing the above-mentioned corrosion, it is possible to prevent the cleaning agent from being contaminated, prolong the flow period of the cleaning agent, and improve the cleaning efficiency of the cleaning agent.

In the embodiment described above, although the power transmission assembly 12 is composed of the driving wheel 12a and the friction assembly 12b closely contacting the inner circumference of the roller brush 2, the present invention is not limited to this embodiment.

For example, as shown in FIG. 6, the power transmission assembly 12 may include a driving gear 12c and a driven gear 12d. The rotational force is transmitted by the meshing of the driving gear 12c and the driven gear 12d. Here, the driving gear 12c may be a pinion gear mounted on the driving source 10 . The driven gear 12d may be a ring gear, and is firmly fixed to the inner surface of the roller brush 2 to mesh with the pinion.

When the power transmission assembly 12 is formed as the above-mentioned gear unit, since no slippage occurs, power loss can be minimized, thereby improving power transmission efficiency.

However, the power transmission assembly 12 can be designed in various configurations.

In addition, in the embodiment described above, although a single roller brush 2 is provided with a pair of drive units 4, the present invention is not limited to this embodiment.

For example, a separate drive unit 4 may be provided at one end of the roller brush 2 . Here, the other end of the roller brush 2 is supported by a rotating shaft.

According to the present invention, since the driving unit is installed in the roller brush sealed from the outside, the driving unit can be prevented from being corroded by the cleaning agent, thereby preventing the cleaning agent from being polluted and improving the cleaning efficiency of the cleaning agent.

In addition, since the power transmission assembly is designed in a simple structure in which the power transmission assembly can transmit energy through simple physical contact, the structure of the entire cleaning device can be simplified, thereby reducing the cleaning space.

It is obvious that various modifications and changes can be made to the present invention by those skilled in the art. Therefore, the present invention includes any changes and modifications within the coverage of the claims and their equivalents.

Claims (8)

1, a kind of cleaning device that is used for flat display board comprises:

Be installed in rotation on the round brush on the preceding stand in channel of plank; And

Be installed in this round brush inside, be used at the driver element of cleaning course to round brush transmission rotatory force.

2, cleaning device according to claim 1, wherein driver element comprises: be used to support the back shaft of round brush, the power transfer assemblies that is used to the power of rotating and is fixed on the drive source on the back shaft and is used for torque is sent to from drive source round brush.

3, cleaning device according to claim 2, wherein power transfer assemblies contacts with round brush physics, to transmit the torque of drive source to round brush.

4, cleaning device according to claim 2, wherein power transfer assemblies is made up of friction pulley assembly or pair of engaged gears.

5, cleaning device according to claim 1, wherein the inside of round brush is waterproof.

6, cleaning device according to claim 2, wherein the output shaft of back shaft and drive source has the longitudinal axis identical with the round brush pivot center.

7, cleaning device according to claim 2, wherein drive source is an electric motor.

8, cleaning device according to claim 1 wherein is installed in driver element in the single round brush more than one.

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