JPH11249355A - Wiping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a wiping device which is suitable to clean a bar work such as a rubber roller etc., and to automatically wipe off foreign matter and soil such as a rubber piece sticking to the surface of the bar work and dust, etc., and to efficiently clean the bar work. SOLUTION: On a moving frame 13 which is moved backward and forward in the longitudinal direction of the work W which is rotatably supported by a work supporting table 2, a push jig 15, a wiping liquid blow-off jig 16 and an air blow-off metal fixture 17 are installed, where the push jig 15 is prepared for pushing a tape-like wiping sheet S held by a sheet holding jig 14 against the work surface, the wiping liquid blow-off jig 16 is prepared for supplying the wiping liquid to the wiping sheet S in pushing the sheet S against the work surface, and the air blow-off metal fixture 17 is prepared for spraying the air on the part, through which the push jig 15 passes, of the work W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for automatically wiping off foreign matter and dirt adhering to the surface of a rod-shaped workpiece and cleaning the same.
In particular, the present invention relates to a wiping device suitable for cleaning a rubber roller used in precision office equipment such as a copying machine and a facsimile machine after buffing.

[0002]

2. Description of the Related Art For example, precision office equipment such as copiers and facsimile machines include:
Various rubber rollers are used for paper feeding and the like.
This rubber roller is usually subjected to a buffing process after vulcanizing a rubber roller with a cored bar to finish it to a predetermined dimensional accuracy.After this buffing process, buff powder, rubber powder or the like adhering to the rubber roller surface is removed. A wiping operation is performed to remove foreign substances such as dust and dirt.

[0003] However, this wiping operation has conventionally been a manual operation by hand using a sheet, so that there is a problem that the cost is high and the cleanliness is not constant. In addition,
Various attempts have been made to automate the wiping operation.Especially, in order to remove rubber powder and the like adhering to the roller surface, a moderate pressing frictional force is required, and an elongated shape having a small diameter is required. It has been more difficult than expected to automate the wiping of the roller surface efficiently.

Accordingly, the present invention provides a method of moving a wiping sheet wetted with a wiping liquid in a longitudinal direction while pressing the wiping sheet against a surface of a rotating workpiece, and spraying air on a wiping portion through which the wiping sheet has passed. It is an object of the present invention to provide a wiping device capable of reliably and efficiently automatically removing foreign matter, such as rubber powder, even when the foreign matter such as rubber powder adheres to the surface of an elongated rubber roller.

[0005]

In order to achieve the above object, the present invention relates to a wiping apparatus for wiping and cleaning foreign matters on the surface of a rod-shaped work, the work being configured to rotatably support the work. A sheet holder having a support base and a moving frame that reciprocates in the longitudinal direction of the work, and holding the tape-shaped wiping sheet on the moving frame; A pressing tool for pressing against a surface, a wiping liquid discharging tool for supplying a wiping liquid to the wiping sheet in advance at the time of pressing, and a work for spraying air toward a portion of the workpiece through which the pressing tool has passed; An air blow-out fitting for blowing off foreign matter on the surface and drying the wiping liquid is provided so as to be integrally reciprocable.

[0006] By opening a supply hole of the wiping liquid discharging tool on the pressing surface of the pressing tool, a sufficient amount of the wiping liquid is intensively and stably supplied to the wiping portion. Above, which enhances the effect of removing foreign substances,
In addition, the structure for supplying the wiping liquid can be simplified. Also, it is preferable to use alcohol as the wiping liquid because it is easy and safe to handle, drying is quick after wiping, and work is performed quickly, and efficient wiping is performed without deteriorating the work surface. It is preferable in performing the taking operation.

It is preferable to provide the air outlet fittings on both sides in the moving direction of the pressing tool in order to further enhance the effect of removing foreign substances.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, a wiping device 1 is a device for cleaning the surface of a rod-shaped work W such as a rubber roll, and includes a work support base 2 that rotatably supports the work W, and a work support base 2 that supports the work W. And a wiping tool 3 for wiping the rotating work W. In this example, the case where the wiping device 1 includes two sets of the work support base 2 and the wiping tool 3 and wipes the surfaces of two works W arranged in parallel is shown. Or one set.

The work supporting base 2 has a pair of holding parts 5A and 5B for detachably and one-touch holding the metal core parts We projecting from both ends of the work W. One of the holding parts 5A is, for example, A chuck portion 6A connected to the electric motor M1 fixed to the frame F, and a splicing shaft portion 7A whose outer end is gripped by the chuck portion 6A are provided. The other holding portion 5B includes a chuck portion 6B attached to the frame F so as to be repositionable in the longitudinal direction of the work W, and a joint shaft portion 7B having an outer end fixed to the chuck portion 6B. 7
The workpiece W is rotatably supported by narrowing the pressure in the axial direction (longitudinal direction) between the inner ends of A and 7B. The joint shaft portions 7A and 7B have substantially the same diameter as the work W, and provide standby positions Y1 and Y2 of the pressing tool 15 described later.

In this embodiment, the work support table 2 has
The work W before the wiping is carried in by the work transfer device 9 and the work W after the wiping is carried out.

In the present embodiment, the work transfer device 9 comprises a chain conveyor which is intermittently fed, and the sprocket 1
Attachments 12 for receiving the respective cores We are protrudingly provided on two rows of chains 11 wound between 0 and 10 and circling in a direction perpendicular to the longitudinal direction. Accordingly, the work transfer device 9 transfers the work W to the attachment 1.
It is transported so as to straddle between 2 and 12.

The wiping tool 3 is provided with a tape-shaped wiping sheet S on a moving frame 13 which reciprocates in the longitudinal direction of the workpiece W.
And a sheet holder 14 for holding the sheet
15 for pressing the wiping sheet S against the surface of the work, a wiping liquid discharger 16 for supplying a wiping liquid to the wiping sheet S at the time of pressing, and a work W which the pressing tool 15 has passed. And an air blow-out fitting 17 for blowing air toward the portion.

In the present embodiment, the moving frame 13 is in the form of a vertical plate oriented in the longitudinal direction, and reciprocates in the longitudinal direction via the linear moving means 19. In this example, a linear moving means 19 using a ball screw mechanism is illustrated, and is fixed to the frame F and extends in the longitudinal direction.
It comprises a row of guide shafts 20 and a screw shaft 21 which is pivotally attached to the frame F in parallel with the guide shafts 20 and has one end connected to the electric motor M2. The guide shaft 20 guides the movable frame 13 along the guide shaft 20 by inserting the first protrusion 22 provided on the movable frame 13. The screw shaft 21 is screwed with a second protrusion 23 provided on the moving frame 13 to reciprocate the moving frame 13 in parallel according to the number of rotations and the direction of rotation of the screw shaft 21. In addition, the linear moving means 1
As 9, various other structures using a chain mechanism, a gear mechanism, and the like can be adopted.

As shown in FIG. 3, the sheet holder 14 has a holding roller 25 for holding a new tape-shaped wiping sheet S in a roll form, and a collecting roller for collecting the wiping sheet S contaminated by wiping. The wiping sheet S, which is rewound from the holding roller 25, passes through the idle roller 27 and the lower surface of the pressing member 15 and is taken up by the collection roller 26.

As the wiping sheet S, a soft material that does not damage the work surface is used. However, from the viewpoints of water absorption, cushioning (elasticity in the thickness direction), tensile strength, and the like, long fibers are used. Can be suitably used. Since this one has a rough surface and a high porosity, it is also excellent in the effect of trapping and capturing foreign matter. In addition, in order to further enhance the cushioning property and increase the contact area and to make it easier to remove foreign matter from the work surface during rubbing, a plurality of foreign substances, for example, 2
The wiping sheets S are used in an overlapping manner. For this purpose, two holding rollers 25 are used, and the wiping sheet S from each holding roller 25 is
The superimposition has begun at the point where the difference occurs.

In the present embodiment, the pressing member 15 is provided at the other end 2 of the mounting piece 29 extending above the work W from the moving frame 13.
9E is held via urging means 30 for urging downward. As shown in FIG. 4, in this example, the pressing member 15 has a rectangular block shape, and is vertically movably guided by inserting vertical guide pins 31 extending from the other end 29E. . The biasing means 30 is a spring piece disposed between the other end 29E and the pressing member 15, and the pressing force of the pressing member 15 causes the pressing surface 15S, which is the bottom surface, to be pressed by the spring force. The passing wiping sheet S is pressed against the work surface with a predetermined force.

As shown in FIG. 4, the wiping liquid discharger 16 includes a tank 32 for storing wiping liquid, and a tank 3 for storing the wiping liquid.
And a flow path 33 for supplying the wiping liquid from 2 to the wiping sheet S.

The flow path 33 is formed on the pressing surface 15S.
It has one or more supply ports 35 opened at a contact portion in contact with the work surface via the wiping sheet S, and in this example, a plurality of (two in this example) supply ports 35 arranged in the longitudinal direction. The supply port 35 is connected to the tank 32 through vertical and horizontal guide holes 36A and 36B provided in the pressing tool 15, a hose body 37 extending from the pressing tool 15, and the like. The supply port 35 is a small hole having a diameter of, for example, about 0.5 mm. In this example, the supply port 35 is automatically supplied quantitatively by a so-called auto feeder 39 that adjusts the amount of drop from the tank 32. In addition, you may comprise so that it may forcibly supply from the tank 32 using a pump etc.

The wiping liquid is a lubricant that cleans the surface of the work and causes fine foreign matter to adhere to the wiping sheet S side and floats the foreign matter from the work surface, and also prevents the work surface from being damaged. Also works as It is preferable to use alcohol for this purpose,
Drying after wiping can be speeded up while maintaining the handling property and safety at a high level while exhibiting the washing function and the like more.

As shown in FIGS. 1 and 3, the air outlet fitting 17 is connected to a high-pressure air source (not shown), and blows the air downward toward the portion where the pressing tool 15 has passed. Thereby, the foreign matter on the work surface is blown off and the wiping liquid is dried. In this example, the air outlet fitting 1
Numerals 7 are provided on both sides in the moving direction of the pressing tool 15, and are operated by switching the air blow-out fittings 17, 17 respectively when the wiping tool 3 moves on the outward path and the return path. In the reciprocating movement, both may be operated at the same time without switching the air outlet fittings 17, 17. At this time, the one air blow-out fitting 17 sprays air on the surface of the work before wiping to float foreign matters, so that the cleaning effect at the time of wiping can be further improved.

The wiping tool 3 is surrounded by a hood 40 below the work W in order to prevent foreign matter and wiping liquid blown off by the air blow-out fitting 17 from scattering. In addition, the foreign matter once blown off is the work W
A dust collector 41 for sucking the inside of the hood 40 is connected to prevent re-adhesion to the hood and exhaust the alcohol.

The work W conveyed intermittently by the work transfer device 9 is transferred to and mounted on the work support 2, and the work W is rotated by the operation of the electric motor M1.

On the other hand, in the wiping tool 3, the pressing tool 15 moves from the standby position Y1 on the one joint shaft portion 7A to the folding position Y2 on the other joint shaft portion 7B, and enters the standby position Y1.
Reciprocate in the longitudinal direction until it returns to.

During this reciprocating movement, the pressing member 15
An appropriate amount of the wiping liquid is dripped into the wiping sheet S under the pressing surface 15S from the supply port 35 to penetrate the wiping sheet S, and the wiping sheet S including the wiping liquid is applied to the rotating work surface with an appropriate force. The automatic wiping operation is performed by moving in the longitudinal direction while pressing.

At this time, since the air from the air blow-out fitting 17 is sprayed on the work surface immediately after the wiping,
Foreign matter other than those captured by the wiping sheet S, that is, rubbing of the wiping sheet S and blowing off of the foreign matter floating with the wiping liquid, further enhances cleanliness, dries the wiping liquid, and prevents reattachment of the foreign substance. I do. Further, the hood 40 and the dust collector 41 more reliably suppress the scattering of the foreign matter and the wiping liquid that are blown off to the surroundings or the reattachment to the work W.

In this example, the sheet holder 14 operates when the pressing member 15 is at the standby position Y1 and the folding position Y2. A new portion of the wiping sheet S is supplied below the applicator 15, and the supplied new portion is sequentially filled with a wiping liquid from a supply port 35. In addition, it is preferable to form the joint shaft portions 7A and 7B with a smooth low friction surface such as a metal for the rotation of the wiping sheet S.

Further, since the supply port 35 is formed in the pressing surface 15S of the pressing tool 15, a sufficient amount of the wiping liquid can be intensively and stably supplied to the wiping portion, and the cleaning effect and the like can be obtained. While suppressing excessive consumption of the wiping liquid.

[0028]

Since the present invention is configured as described above,
Even when foreign matter such as rubber powder adheres to the surface of the elongated rubber roller or the like, the foreign matter can be reliably and efficiently removed automatically.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a wiping device of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a perspective view showing a main part thereof.

FIG. 4 is a cross-sectional view showing a pressing tool together with a wiping liquid discharging tool.

[Explanation of symbols]

 2 Work support stand 13 Moving frame 14 Sheet holder 15 Pressing tool 15S Pressing surface 16 Wiping liquid discharge tool 17 Air blow-out fitting 35 Supply hole S Wiping sheet W Work

Claims (3)

[Claims] 1. A wiping device for wiping and cleaning foreign matter on the surface of a rod-shaped work, comprising: a work support table rotatably supporting the work; and a moving frame reciprocating in a longitudinal direction of the work. A sheet holder for holding a tape-shaped wiping sheet on the moving frame, a pressing member for pressing the wiping sheet from the sheet holder against the work surface, and A wiping liquid ejector for supplying a wiping liquid to a sheet in advance, and an air for spraying air toward a portion of the workpiece through which the pressing tool has passed to blow off foreign substances on the surface of the workpiece and dry the wiping liquid. A wiping device provided with a blow-out fitting so as to be able to reciprocate integrally. 2. The apparatus according to claim 1, wherein the wiping liquid is alcohol, and the pressing tool has a supply hole of the wiping liquid discharging tool opened on a pressing surface for pressing the wiping sheet against a work surface. The wiping device according to claim 1, wherein: 3. The wiping device according to claim 1, wherein the air outlet fittings are provided on both sides in the moving direction of the pressing tool.