JP2003245612A - Liquid supply humidifier adapted to cleaning cloth - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid supply humidifier adapted to cleaning cloth capable of controlling the liquid content of cleaning cloth to hold the cleaning and humidification of a liquid cleaning matter to a suitable state. <P>SOLUTION: The liquid supply humidifier adapted to cleaning cloth is constituted so that the contaminant adhering to the surface of matter is wipen off by the cleaning cloth humidified by the supply of a liquid and/or the liquid is supplied to the cleaning cloth in order to coat the surface of the matter with the liquid. This apparatus is equipped with a liquid supply member coming into contact with the cleaning point of the cleaning cloth or the vicinity thereof to supply the liquid to humidify the cleaning cloth and a means for supplying the liquid to the liquid supply member. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply / humidification device for a cleaning cloth, and more particularly, to a liquid supply / humidification device for a cleaning cloth or a cleaning device for removing contaminants adhering to the surface of an object. At the same time, the present invention relates to a liquid supply / humidifying device for a cleaning cloth for forming a liquid film on the surface of an object to be cleaned.

[0002]

2. Description of the Related Art When wiping and cleaning dust and other contaminant particles adhering to the surface of an object, the cleaning effect is great because the cleaning cloth is moistened. Figure 8
(A), (b), (c) shows the cleaner device which applied the conventional liquid supply humidifier to a cleaning cloth, respectively. The cleaning cloth is a belt-shaped cloth having a width substantially the same as that of the object to be cleaned, and is generally a long one wound in a roll shape. In the apparatus shown in FIG. 8A, the cleaning cloth 1 is fed from the uncontaminated roll 2, wound up by the contaminated roll 3 driven by a motor (not shown), and moves in the direction of arrow 15 on a predetermined locus. Meanwhile, the cleaning cloth 1 is humidified by the liquid supply humidifier 4. The device 4 is a tube 5 with a number of nozzles 6 through which liquid is sprayed onto the cleaning cloth 1. The portion that has been moistened with the liquid moves to a contact position 8 (hereinafter also referred to as a cleaning point) between the object to be cleaned 12 and the guide member 9, and at the contact position 8, contaminant particles on the object to be cleaned 12 are wiped off. In the apparatus shown in FIG. 2B, the cleaning cloth 1 moves via an arc-shaped guide plate 10 having a large number of perforated holes 11.
The liquid 17 sprayed from the nozzle 6 passes through these holes 11 and is distributed to the long liquid supply portion 18 of the cleaning cloth 1. In the apparatus of FIG. (C), a part of the liquid applying roller 13 is immersed in the liquid 14a in the water boat 14, and the liquid applying roller 1
While rotating 3, the liquid film is formed on the surface thereof, and the liquid film is applied to the cleaning cloth 1 in contact therewith, so that the cleaning cloth 1 is moistened with liquid. Note that, due to the wiping action, relative movement between the cleaning cloth 1 and the article to be cleaned 12 is required, and the arrow 16 indicates the movement direction of the article to be cleaned 12.

[0003]

Since the liquid supplied to the cleaning cloth 1 adheres to the surface of the object to be cleaned 12 during the cleaning or the liquid application, the liquid supply amount to the cleaning cloth is , And increases or decreases according to the traveling speed of the object to be cleaned 12 and the amount of liquid applied. By constantly controlling the liquid content of the cleaning cloth 1 to an optimum value, it is possible to maintain the cleaning and humidification of the object to be cleaned 12 in an optimum state. The liquid content of the cleaning cloth in the contact surface between the cleaning cloth and the object to be cleaned needs to be accurately controlled within the set value.
In particular, when cleaning paper having a high liquid absorption property, excessive liquid supply is impossible, and if the set upper limit of the liquid content of the cleaning cloth is exceeded, paper breakage will occur. In the contact surface,
Maintaining a uniform liquid content over the entire surface (width) of the cleaning cloth is important from the viewpoints of the cleaning effect and maintaining the uniformity of liquid application, and in particular, in the case of liquid application, it is supplied to the cleaning cloth. Since the liquid moves directly to the target object,
If the liquid content is not uniform over the entire surface, unevenness will occur in the applied liquid. Further, since the liquid supplied to the cleaning cloth is continuously taken according to the traveling speed of the object and the application amount of the liquid, a high responsiveness is required for the liquid supply to the cleaning cloth. Furthermore, it is hoped that the device will be small, lightweight and simple.

The method of spraying the liquid directly from the nozzle onto the cleaning cloth as shown in FIG. 8A has the following drawbacks. (B) Since the fluid ejected from the nozzle has a flow rate distribution characteristic that the injection pressure is high and the liquid flow rate density is large near the center of the nozzle injection, the sprayed liquid causes liquid unevenness on the cleaning cloth surface, The liquid content becomes non-uniform.
In particular, in the vicinity of the center of the nozzle spray, the liquid may excessively ooze to the opposite side (wiping action surface) of the cleaning cloth. (B) Since there is a guide member for bringing the cleaning cloth into contact with the object to be cleaned, the cleaning point cannot be supplied with liquid from the back surface of the cleaning cloth. Even if you can supply liquid,
It is not practical for the reason of the above (a). Further, since the cleaning point and the liquid supply humidifying position are separated, it is difficult to control the liquid content of the cleaning cloth at the cleaning point, and the portion to which the liquid has been supplied is moved to the wiping action portion by winding the cleaning cloth. However, that much wastes the cleaning cloth. (C) In order to supply the liquid uniformly over the entire width of the cleaning cloth, it is necessary to increase the distance between the nozzle and the cleaning cloth or increase the number of nozzles, which makes it difficult to reduce the size, weight and simplification of the device. Become.

As shown in FIG. 8 (b), when a liquid is sprayed from a nozzle onto a plate having a large number of perforations such as perforations and the liquid is passed through the perforations to supply the cleaning cloth, the perforations are formed. Since the liquid passes through and reaches the cloth, there is a large amount of liquid near the perforation holes and the liquid is in excess. It has the same drawbacks as the above-mentioned nozzle injection method. As shown in FIG. 8 (c), when the liquid application roller is dipped in a water boat to form a liquid film on the surface of the roller, and the cleaning cloth 1 in contact is heated and humidified, Since the liquid application roller and its rotation drive device are required, it is difficult to make the device small, lightweight and simple. (B) While the liquid application roller is being rotated, the surface of the liquid application roller is brought into direct contact with the cleaning cloth to supply the liquid, and the cleaning cloth is pulled in the direction of rotation of the liquid application roller by the frictional force with the roller, and locally expands. Occurs, and it is not possible to form a uniform contact surface that is flat in the entire width direction. (C) When a large amount of liquid is applied to the cleaning cloth,
Although it is necessary to significantly increase the number of rotations of the liquid-applying roller, the rotation of the liquid-applying roller causes the surface of the liquid in the water boat to wavy, causing the liquid to overflow outside the water boat. As described above, according to the conventional liquid supply moisturizing method, it is difficult to control the liquid supply amount to the cleaning cloth with high responsiveness according to the change of the traveling speed and the applied amount of the object to be cleaned. It was

The present invention has been made in view of the above circumstances, and the liquid can be directly moisturized to the cleaning point, and the liquid content can be accurately controlled in the contact surface between the cleaning cloth and the object to be cleaned. An object of the present invention is to provide a liquid supply / humidifying device capable of maintaining a uniform and uniform liquid content over the entire contact surface and having high responsiveness to changes in liquid content.

[0007]

In order to achieve the above-mentioned object, the present invention makes a cleaning cloth moistened with a liquid supply contact a running object to clean the object and / or apply a liquid. A liquid supply / humidification device for cloth includes a liquid supply member for contacting a cleaning point of the cleaning cloth to humidify the liquid supply, and a unit for directly supplying the liquid to the liquid supply member. FIG. 1 shows a first embodiment of a liquid supply / humidifying device for a cleaning cloth according to the present invention. The liquid supply / humidifying device 20 is disposed in the rear of the liquid supply member 22 and a substantially rod-shaped liquid supply member 22 which extends in the width direction of the cleaning cloth and which is protruded forward, and supplies the liquid to the liquid supply member 22. And a liquid supply pipe 23 having a large number of small-diameter holes 24 (for example, diameter 0.3 mm) formed at intervals in the longitudinal direction. The liquid supply pipe 23 and the small diameter hole 24 form a means for supplying the liquid to the liquid supply member 22. Liquid absorbing member 22
The liquid supply pipe 23 and the liquid supply pipe 23 are fixed in a case 25 having a U-shaped cross section with an appropriate gap. The case 25 is attached to the support beam 21. The humidifying liquid is sprayed from the small diameter hole 24 of the liquid supply pipe 23, and the liquid is absorbed by the liquid supply member 22, and at the same time,
It rapidly penetrates and propagates in the longitudinal direction, and the liquid content in the liquid supply member 22 becomes uniform. As the humidifying liquid, a conventional liquid is used. The liquid supply member 22 is in direct contact with the back surface of the cleaning cloth 1 at a contact position (cleaning point) between the cleaning cloth 1 and the object to be cleaned 12 (for example, a paper having a width of 1000 mm), and is suitable for the cleaning cloth. Humidify the liquid supply.

The liquid supply member 22 is a rod-shaped material which extends over the entire width of the cleaning cloth 1, has an excellent liquid absorption capability, and has a physical property of rapidly permeating and propagating the liquid in its longitudinal direction. The one that can rapidly suck and drain the liquid is used so that the liquid content of both is in an equilibrium state at the contact portion with the cleaning cloth 1. Liquid absorption, permeation, propagation, and liquid drainage in the liquid supply member 22 are performed by a capillary phenomenon.

The following members can be used as the liquid supply member 22. (1) Lipophilicity, molded body of fiber base material; for example, those used for liquid suction cores formed by bundling long fibers, cores of magic ink, synthetic fiber nibs for marking, etc. (2) Continuous porous body of lyophilic base material; for example, water-absorbent urethane sponge, foamed vinyl chloride sponge and the like. (3) Polymer sintered continuous porous body: For example, a polyethylene continuous porous body.

FIG. 2 shows a liquid supply member 22 in which a liquid content sensor 26 is embedded. The sensor 26 has, for example, 1 mm
The diameter of the wire (SUS316) is used, and the liquid supply member 22 is detected by the detection unit 27 that detects a change in current due to a change in water content.
The liquid content of the liquid is detected, and the adjusting means 2 is based on the detection result.
The liquid supply amount from the liquid supply pipe 23 is adjusted via 8 to control the liquid content of the liquid supply member 22. Thereby, the liquid content of the cleaning cloth is indirectly maintained with high accuracy. Detection means 2
7. As the adjusting means 28, a conventional one can be used.

FIG. 3 shows a liquid supply member 30 different from the liquid supply member 22 of the above embodiment. The liquid supply member 30 is formed of a base portion 30a formed of the same material as the material forming the liquid supply member 22 and a material different in mechanical properties from the material of the base portion (preferably the same liquid absorption performance). Tip 3
0b, and the tip portion 30b is formed in front of the base portion 30a. The tip portion 30b is made of a material that is familiar to the surface of the object to be cleaned. For example, the liquid supply member (1)
Even if the same material as (3) to (3) is used, a material having a hard surface to be cleaned has elasticity (cushioning property), and a soft material having a soft surface is used when the surface is easily scratched.

In FIG. 4, a cloth 31 (using a non-woven fabric or the like) is wound around the liquid supply pipe 23 in such a manner that the fibers are aligned in the longitudinal direction of the liquid supply pipe so that the liquid easily penetrates and propagates. Member 2
It is a close contact with 2. The liquid is supplied from the liquid supply pipe 23 to the cloth 31, and the liquid supply member 22 is made to absorb the liquid through the cloth. According to this structure, the liquid can be slowly transferred, the liquid can be prevented from leaking from the end of the case due to the scattering of the liquid in the case 25, and the liquid can permeate in the longitudinal direction of the liquid supply pipe of the cloth 31. The synergistic effect with the propagation action can further accelerate the permeation and propagation of the liquid in the liquid supply member 22.

FIG. 5 shows a hole 32 extending in the longitudinal direction of the liquid supply member 22.
Through the liquid supply pipe 23. A gap 29 is provided between the hole 32 and the liquid supply pipe 23, and the liquid supplied from the small diameter hole 24 of the liquid supply pipe 23 is supplied to the liquid supply member 22.
At the same time, the liquid flows in the longitudinal direction through the gap 29, so that a uniform liquid-containing state can be made more rapidly over the entire length of the liquid supply member.

As shown in FIGS. 6 (a) and 6 (b), the paper end 12a of the paper 12 which has been moistened with the liquid is much more contaminated with paper dust, coat clay and the like than the central part. The contaminants 34 adhere to the cleaning cloth 1, and the contaminants 34 are concentrated on the contact portion with the paper edge of the cleaning cloth 1. This contaminant may scatter around and reattach to the paper. Therefore, as shown in FIG. 7, the device 20 is swung in the width direction of the cleaning cloth 1 so that the cleaning of the paper end portion is performed not on the straight line but on the swing width surface. The means for rocking the device may be any method and is not particularly limited. In the figure, 35 is an end support member, and 34 is a state in which contaminants are attached. The rocking is performed, for example, over the width 36 to which the contaminant 34 is attached. Reference numeral 37 indicates the paper traveling direction. As a result, the amount of cleaning cloth used can be reduced.

[0015]

According to the present invention, there is provided a liquid supply / humidification device for cleaning a cleaning cloth by bringing the cleaning cloth moistened with the liquid supply into contact with a running object or applying a liquid to the surface of the object. A liquid supply member capable of rapidly maintaining the liquid content of the entire member in a uniform state because the liquid supply is humidified by contacting the cleaning cloth at or near the cleaning point.
Since the liquid supply member is provided with a means for supplying the liquid, for example, a liquid supply pipe having a small diameter hole, the following effects can be obtained. (1) Since the liquid supply member permeates and diffuses the supplied liquid in the liquid supply member and contacts the cleaning cloth in a state where the liquid content of the entire member is uniform, the liquid supply member directly from the back surface of the cleaning cloth at the cleaning point. It is possible to uniformly and quickly supply and humidify the liquid across the width of the cleaning cloth. Further, the liquid supply member and the cleaning cloth are in static contact with each other, and only the liquid is transferred from the liquid supply member to the cleaning cloth due to capillarity, self-absorption, etc. The shape accuracy of the above forms the cleaning surface of the cleaning cloth. Therefore, a flat and uniform liquid supply / humidification surface can be easily formed over the entire cleaning surface, particularly the entire width direction. (2) The liquid content of the cleaning cloth follows the liquid content of the liquid supply member. It is possible to indirectly control the liquid content of the cleaning cloth by detecting the liquid content of the liquid supply member with a sensor and adjusting the amount of liquid supplied to the liquid supply member based on the detection result. The liquid content of the cleaning cloth on the cleaning surface, which changes momentarily due to changes in the running speed of the object to be cleaned, is detected in proximity to the cleaning point and liquid is supplied, so numerical accuracy and responsiveness are achieved in liquid content control. Can be increased. (3) By using a liquid supply member that penetrates and propagates the liquid in the longitudinal direction, it suffices to provide the liquid supply pipe with small diameter holes at appropriate intervals. Moreover, the liquid jet nozzle is unnecessary, and
Since the liquid supply pipe can be arranged close to the liquid supply member, the device can be simplified, downsized, and lightened. (4) The liquid content of the liquid supply member (water retention ratio with respect to its own weight during drying) is generally several 100%. In practical use, it is never used beyond this liquid content, and since no liquid dripping occurs, it is omnidirectional (360 °) to the horizontal and vertical directions.
Can be used for cleaning or liquid application.

[Brief description of drawings]

FIG. 1 is a conceptual cross-sectional view showing a device for humidifying and supplying liquid to a cleaning cloth according to the present invention.

FIG. 2 is a conceptual diagram showing a liquid supply member in which a liquid content sensor is embedded.

FIG. 3 is a conceptual diagram showing another embodiment of the liquid supply member.

FIG. 4 is a conceptual diagram showing another embodiment of the liquid supply member.

FIG. 5 is a conceptual diagram showing another embodiment of the liquid supply member.

FIG. 6 shows the state of swelling of contaminants generated at the edge of paper,
(A) is a front view and (b) is a side view.

FIG. 7 is a perspective view showing a state in which the liquid supply / humidifying device is rocked to the left and right with respect to the fed paper.

FIG. 8 shows a conventional liquid supply humidifier, (a), (b),
Each of (c) conceptually shows each conventional example.

[Explanation of symbols]

1 cleaning cloth 2 Uncontaminated roll 3 Contamination roll 12 paper 20 Liquid supply humidifier 21 Support beams 22 Liquid supply member 23 Liquid supply volume 24 small hole 25 cases 26 Liquid Content Sensor 27 Detection means 28 Adjustment means 30 Liquid supply member 30a Base of liquid supply member 30b Tip of liquid supply member 31 Non-woven cloth 32 holes 34 pollutants 35 End member support member 36 Swing width

Claims (5)

[Claims] 1. An apparatus for supplying a liquid to a cleaning cloth for wiping off contaminants adhering to the surface of an object and / or applying a liquid with a cleaning cloth moistened with a liquid supply, the apparatus comprising: A liquid supply / humidification device for a cleaning cloth, comprising: a liquid supply member that comes into contact with a cleaning cloth to moisturize the liquid supply; and means for supplying liquid to the liquid supply member. 2. The cleaning liquid supply / humidification device for a cleaning cloth according to claim 1, wherein the liquid supply means is a liquid supply pipe having a small diameter hole. 3. A liquid content sensor is provided on the liquid supply member,
The liquid supply humidification of the cleaning cloth according to claim 1, wherein the liquid content of the cleaning cloth is controlled by adjusting the liquid content of the liquid supply member based on the detection result of the sensor. apparatus. 4. The liquid supply member comprises a base portion made of a material having a liquid absorbing property, and a tip portion made of a material having a mechanical property different from that of the material of the base portion. Item 3. A moistening device for supplying liquid to a cleaning cloth according to item 1 or 2. 5. An object to be cleaned, characterized in that a cleaner device including the cleaning cloth and the liquid supply / humidifying device is swung in a direction traversing the object to be cleaned such as a paper to be fed. Cleaning method.