JPH049116B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for removing dust from plastic film sheets, etc.

In particular, manuscripts for printing precise patterns used in printing plates and printed circuits, drafting films,
This invention relates to a device for removing foreign matter such as dust adhering to both sides of base materials such as film for second original drawings, plastic film sheets, printing plates, and plywood of metal and plastic.

Conventionally, in the process of printing plates and creating patterns for printed circuits, the plastic sheets used as original manuscripts have been required to be of high quality and free of dirt and dust. The adhesion of dirt and dust causes defects in printed patterns and printed circuit patterns in those areas, causing problems such as correction work and redoing of pattern creation, resulting in a high defect rate.

Furthermore, when tracing is carried out with dirt or dust attached to the film for drafting and second original drawing, defects such as line breakage occur.

Furthermore, if there is foreign matter such as dirt or dust on the printing film sheet or plate, ink will collect around the foreign matter, causing defects.

In addition, when applying a pattern to plywood made of copper and plastic laminate, for example, if there is dirt or dust, pinholes may occur in some areas, making it impossible to obtain a normal pattern, resulting in defects that are difficult to repair. It was hot.

Even if you treat one side of the film from part to the entire surface with a hair brush, a brush, or something like a record cleaner, the foreign matter on the back side cannot be removed at the same time, and even if you remove the dirt on the front side, the film is easily charged. They have the disadvantage that they tend to re-adhere, and active rays during exposure are blocked by foreign matter such as dirt and dust on the front and back surfaces of transparent and copyable plastic films, plate-making lithium films, drafting films, films for second original drawings, etc. If it is in the margin, it is a stain, and if it is on a pattern such as a line or halftone dot, it is a defect in the pattern.

In particular, when treated with a silicone rubber system, the treated surface becomes water repellent due to the silicone and ink adhesion becomes poor, which is a problem for drafting films, printing films, and the like.

The object of the present invention is to provide a method and apparatus for completely and easily removing dirt and dust from plastic film sheets, etc., in order to eliminate the above-mentioned defects.The structure of the present invention will be explained below. do.

The adhesive rollers 15 and 16 are rollers made of adhesive rubber or the like;
Alternatively, it is possible to use an adhesive sheet laminated with a urethane-based synthetic resin or the like whose adhesion has been appropriately adjusted and adhered to the roller member, or a porous roller member impregnated with the adhesive urethane-based synthetic resin. If they become dirty after use, they can be washed with water and used again after drying.

By arranging adhesive rollers made of the above-mentioned materials relatively and passing a plastic film sheet 4 etc. between the adhesive rollers in contact with each other, dirt or dust on the plastic film sheet 4 etc. can be removed from both sides. Can be easily removed. Immediately after the above-mentioned dusting operation, if the static electricity charged on the plastic film sheet 4 is removed by a static electricity removing device, re-adhesion of dust etc. can be prevented even in the case of a film that is particularly prone to being charged. The apparatus of the present invention that can specifically carry out the present invention will be described below based on the drawings.

The drawings show an embodiment of the device of the present invention.
The figure is a perspective view of the entire device, and FIG. 2 is a side view with a portion thereof cut away.

Two adhesive rollers 15 and 16 facing each other are rotatably mounted in the housing 1, and a static electricity eliminator 10 is disposed on the side of the adhesive roller 15.

A guide 30 is fixed to the housing 1 in front of the housing 1, and a slide plate 31 that is slidable back and forth is fitted into the guide 30, and the surface of the slide plate 31 is treated with Teflon.
Improves the slippage of plastic film sheets, etc. Rails 8, 81 are formed on the upper part of the side plate extending from the housing 1. Both ends of a clamp mounting base 11 are fitted into the rails 8, 81, and the clamp mounting base 11 is mounted on the rails. It slides freely forward and backward.

The clamp mounting base 11 is attached to the endless belts 7, 7.
1, and the endless belts 7, 7
1 is stretched between pulleys 9, 90 and pulleys 91, 92, and pulley 92 is driven by a motor 2 that can freely rotate in forward and reverse directions with a belt 24 interposed therebetween.

Pulleys 90, 92 and pulleys 9, 91 are connected by shafts 25, 18, respectively,
Rotate synchronously.

Bearings 5, 51 are fixed to the clamp mount 11, and both ends of a shaft 17 are rotatably pivotally connected to the bearings 5, 51.

Clamps 12, 13, and 14 are fixed to the shaft 17, and the clamp 13 is connected to a solenoid plunger 22 via an operating rod 6.

The solenoid plunger 22 is fixed to a solenoid plunger mounting member 23 that is integrally formed with the clamp mount 11 .

Place the plastic film sheet 4 on the slide plate 31, slide the slide plate on the guide 30, operate the roller release lever 3 in the direction of arrow a, release the adhesive roller 15, and release the plastic film sheet 4. is inserted through the opening 26 of the housing 1.

The gap between the adhesive rollers 15 and 16 can be adjusted by operating the roller release lever 3, and in the embodiment of the present invention, a plastic film sheet or the like of 50 μm to 5 mm can be used.

Operate the solenoid plunger operation switch 29, clamp the tip of the plastic film sheet 4 with the clamps 12, 13, 14, return the roller release lever 3 to its original position, operate the retraction switch 28, and remove the clamp mounting base 11. When moved in the direction of arrow b, the clamp mounting base 11 reaches the position of the film release limit switch 19 and the clamp 1
The clamping operations of 2, 13, and 14 are released, and the plastic film sheet 4 is cleaned of dust and placed on the film sheet holder 21.

The film sheet holder 21 can be slid as shown by the dotted line in FIG.

After the clamp mount 11 has stopped at the position of the clamp mount stop limit switch 20, the forward switch 27 is operated to reversely rotate the motor 2 and return it in the direction of arrow c, preparing for the next operation cycle.

A series of these controls is performed by a known electric circuit (not shown).

Since the present invention has the above-described configuration, it can be applied to manuscripts for printing precision patterns, drafting films, etc. used in printing plates and printed circuits.
It is possible to simultaneously and easily remove foreign matter such as dirt or dust that adheres to both sides of substrates such as film for second original drawings, plastic film sheets, printing plates, plywood of metal and plastic, etc., and films that are easily charged. It is possible to prevent dust etc. from re-adhering to the surface.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention.
The figure is a perspective view of the entire device, and FIG. 2 is a side view with a portion thereof cut away. 1... Housing, 2... Motor, 3... Roller release lever, 5, 51... Bearing, 4... Plastic film sheet, 6... Operating rod, 8,
81...Rail, 7,71...Endless belt, 9,90,91,92...Pulley, 10...
...Static electricity eliminator, 11...Clamp mounting base, 1
2, 13, 14... Clamp, 17... Shaft, 15, 16... Adhesive roller, 18, 25
...Shaft, 19...Film release limit switch, 20...Clamp mount stop limit switch, 21...Film sheet holder, 22...
Solenoid plunger, 23... Solenoid plunger mounting member, 23... Solenoid plunger mounting member, 24... Belt, 26... Opening, 27... Forward switch, 28... Reverse switch, 29... Solenoid plunger ear operation switch, 30... guide, 31... slide plate.

Claims (1)

[Scope of Claims] 1. It has two adhesive rollers that are rotatable opposite each other, has a static electricity removal device located on the side of the adhesive rollers, and has a static electricity removing device located on the side surface of the adhesive rollers, with a guide and a slide plate interposed between the adhesive rollers. It has a clamp that clamps the leading end of the plastic film sheet, etc. that is inserted, and is configured such that a clamp mounting base that fixes the clamp moves along a rail to transport the plastic film sheet, etc. A device for removing dust from plastic film sheets, etc. 2. A plastic film sheet, etc., according to claim 1, which allows the gap between two adhesive rollers to be adjusted by operating a roller release lever, and allows insertion of a plastic film sheet, etc. with a thickness of 50μ to 5mm. dust removal equipment. 3. A patent characterized in that the pulley on which the endless belt is stretched is driven by a motor that can freely rotate forward and backward, and the clamp mount that is fixed to the endless belt is moved forward and backward along the rail. A device for removing dust from plastic film sheets, etc., according to claim 1. 4. A device for removing dust from plastic film sheets, etc., as set forth in claim 1, characterized in that the two adhesive rollers are detachable from the main body of the device and are configured to be reusable after being washed with water and dried.