JP2701969B2 - How to attach the original film and base sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a photolithography of a printing plate, in which a manuscript film is applied to a base sheet as a preparation step before exposing a printing plate material. The present invention relates to a method of pasting a document film to be pasted and a base sheet.

(Prior Art) When automating photolithography of a printing plate such as a newspaper, there is a restriction, an obstacle, and a trouble in directly handling a manuscript film. Therefore, the printing plate material is exposed. As a preparatory step, the original film is pasted on a transparent and relatively large base sheet, and by handling this base sheet, the original film is exposed to the photosensitive surface of a plate material such as a PS plate. Have been.

In this case, at the time of exposure, by positioning the base sheet and the plate material, the original film attached to the base sheet is indirectly positioned with respect to the plate material. To
It is necessary to set the positional relationship between the base sheet and the original film. In particular, in color printing, three primary colors and four black printing plates are used for printing, and the patterns of these four printing plates match with high precision. Therefore, it is required to set the positional relationship between the original films of the respective colors with high accuracy when attaching the original films of the respective colors to the respective base sheets in the preparation stage of photoengraving.

Japanese Patent Application Laid-Open No. 61-193154 discloses that a base sheet (base film) and a manuscript film (decomposed film) are used.
Is shown.

In this apparatus, a manuscript film set in a predetermined positional relationship is lowered onto a base sheet, and the upper surface of the manuscript film and the upper surface of the base sheet are fixed at both ends of the manuscript film with an adhesive tape, so that the manuscript film is removed. The base sheet is attached to the base sheet, but at this time, the base sheet is adsorbed on the upper surface of the vacuum attaching table, and
Since this base sheet can be made relatively tough, there is no loosening of the base sheet,
The original film is merely placed on the base sheet with a part of its upper surface being sucked by the pair of suction gripping parts, and is not closely attached to the base sheet, so that the original film may be loosened. There is a problem that the pattern of the film does not match, causing color misregistration at the time of printing, and when pressing the adhesive tape on the upper surface of the original film and the upper surface of the base sheet, the pressed part of the original film and the base sheet There is also a possibility that it will shift.

In this apparatus, since the base sheet is punched after the original film is pasted, the base sheet cannot be reused and is disposable.

(Problems to be Solved by the Invention) As described above, in photolithography of a printing plate, as a preparatory step before exposing a plate material of the printing plate, when pasting an original film and a base sheet, a conventional method is used. However, there is a problem that the original film becomes loose or misaligned.
It could not be applied to photolithography for color printing.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to prevent looseness by adhering a document film and a base sheet to each other when they are attached to each other.

〔The invention's effect〕

(Means for Solving the Problems) A method for attaching a document film and a base sheet according to the present invention includes a first suction portion 15 for sucking a document film F and a base sheet positioned outside the first suction portion 15. A surface plate 11 is provided with a second suction unit 16 for adsorbing the peripheral portion of S, and a surface plate 11 movable in the surface direction, and a positioning unit 35 for positioning the base sheet S is provided. Holding frame 21 that can be relatively close to and separated from the surface of board 11
And a pressing body movable along the surface of the base sheet S held by the holding frame 21 and opposite to the surface plate 11.
51, a step of adhering the original film F to the first adsorbing portion 15 on the surface of the platen 11, a step of attaching a double-sided adhesive tape T to the original film F, and a step of attaching the base sheet S to the holding frame 21. Holding the platen; moving the surface plate 11 in the surface direction to adjust the position of the original film F on the surface; and bringing the holding frame 21 and the surface plate 11 close to each other to make the base sheet S and the original film After the step of approaching F, the pressing body 51 is moved along the base sheet S, and the base sheet S is attached to the original film F via the double-sided adhesive tape T, and the base plate 11 Is adsorbed by the second adsorption section 16.

(Operation) In the method of pasting the original film and the base sheet of the present invention, the original film F is adsorbed on the first adsorbing portion 15 on the surface of the surface plate 11, the double-sided adhesive tape T is adhered to the original film F,
Hold the base sheet S in the holding frame 21 and position it.
11 is moved in the plane direction to adjust the position of the original film F on the front surface, the holding frame 21 and the surface plate 11 are brought close to each other, and the base sheet S and the original film F are brought close to each other. By moving along the base sheet S, the base sheet S is stuck on the original film F via the double-sided adhesive tape T and is also adsorbed on the second suction portion 16 of the surface plate 11. .

(Embodiment) An embodiment of a method for attaching a document film and a base sheet according to the present invention will be described with reference to the drawings.

FIG. 5 shows an automatic sticking machine.
An attaching device 1 for attaching an original film F and a base sheet S, and an original film F supplied from a stocker 2 to the attaching device 1 and supplied.
And a sheet supply device 5 for supplying a base sheet S from a stocker 4 to the attachment device 1.

Although the above-mentioned attaching device 1 will be described in detail later, the film supply tape attaching device 3 and the sheet supplying device 5
Are provided with adsorbers 6 and 7 which are respectively formed so as to be horizontally movable and which can be moved up and down. In particular, the film supply tape attaching device 3 includes tapes for attaching a double-sided adhesive tape T to a plurality of locations of the film F. The tension soaking mechanism 8 is provided so as to be able to move up and down.

The original film F (hereinafter, referred to as film F)
As shown in FIG. 4, a rectangular, flexible synthetic resin film having flexibility, a picture is formed on one surface by a film, and a plurality of register marks M for positioning, which are called dragonflies, are provided. Is formed.

The film F is stored in the box 2 with the film surface on which the pattern is formed facing down, and a double-sided adhesive tape T (hereinafter, referred to as a tape T) is provided at a plurality of peripheral portions on the upper surface opposite to the film surface. The base sheet S is stuck on the weakly adhesive side of the plurality of tapes T, and the film F is peeled off from the base sheet S. T remains on the film F side.

Note that a plurality of register marks M (hereinafter, referred to as marks M) formed on the film F are provided asymmetrically, so that the top, bottom, left, and right of the film are not mistaken.

As shown in FIG. 4, the base sheet S (hereinafter, referred to as a sheet S) is formed of a rectangular, flexible, transparent synthetic resin sheet, and is formed to be larger and tougher than the film F, The front and rear edges are held by support plates p1 and p2 made of a magnetic material such as iron, and the front and rear support plates p1 and p2 are formed with a pair of positioning holes h1 and h2 of round holes and long holes, respectively. I have.

The distance between the pair of positioning holes h1 and h2 of the support plate p1 on the front side (left side in the figure) of the sheet S is larger than the distance between the integral positioning holes h1 and h2 of the support plate p2 on the rear side (right side in the figure) of the sheet S. Broadly, this prevents the front and rear of the sheet S from being mistaken.

The attaching device 1 will be described in detail with reference to FIGS. 1 to 3.

Reference numeral 11 denotes a rectangular plate-shaped surface plate. The surface plate 11 is provided horizontally on a positioning table 12 shown in FIG. 5, and is formed so as to be able to move linearly and rotationally in a horizontal direction, that is, a plane direction thereof. .

As shown in FIG. 3, on the upper surface of the surface plate 11, a first suction portion 15 formed of a concave groove for sucking the film F is formed in a lattice shape. Fifteen
A second suction portion 16 formed of a concave groove for sucking the peripheral portion of the sheet S is formed in a lattice shape and a stripe shape, and surrounds the first suction portion 15.
A plurality of suction holes 17 and 18 are opened at the bottoms of the concave grooves 15 and 16, and an exhaust pump is connected to the plurality of suction holes 17 and 18 via an electromagnetic opening / closing valve and a negative pressure tank (not shown). 17,18
, Air is sucked from the respective adsorbing sections 15 and 16.

The first suction unit 15 and the second suction unit 16 operate independently.

Reference numeral 21 denotes a holding frame.
2. A structure in which the right rear side 23 and the left and right side 24 (only one is shown) are combined in a rectangular shape, and has a large rectangular opening 25 for the sheet S. In a state facing the surface plate 11, it is provided horizontally above the surface plate 11, and as shown in FIG. 5, can be moved up and down in a vertical direction. Or so.

The support plate p for the sheet S is provided below the holding frame 21.
A pair of front and rear holding rods 28, 29 for holding 1, p2 are provided in parallel, and these holding rods 28, 29 face the opening 25, and as shown in FIG. The rod 28 is the spacer 30
The holding rod 29 on the rear side (right side in the figure) is fixed to the left and right side parts 24 via a slider 31.
And is horizontally movable in the front-rear direction by a thin cylinder 32 shown in FIG.

The positioning holes h1 and h2 of the support plates p1 and p2 of the sheet S are provided above the pair of front and rear holding rows 28 and 29, respectively.
A pair of positioning pins 35 as positioning parts to be fitted to
(Only one is shown) is projected, and a plurality of magnets 36 for attracting the support plates p1 and p2 are embedded.

Reference numeral 39 denotes a slide frame. The slide frame 39 is supported at both ends by a rodless cylinder 40 (only one is shown) provided in parallel on the left and right side portions 24 of the holding frame 21. A fifth pair of rodless cylinders 40 on the left and right
As shown in the figure, it is designed to move horizontally in the front-rear direction.

Then, a slide-type rodless cylinder 44 is mounted on the rear side near the both ends of the slide frame 39 via mounting plates 43, respectively.
(Only one is shown in FIG. 3) is mounted horizontally in the front-rear direction, and thin cylinders 46 (only one is shown) are mounted downward on the rodless cylinders 44 on both sides via mounting plates 45 respectively. Both ends of a small-diameter and long leveling roller 47 are rotatably supported by the rods of the pair of left and right thin cylinders 46, and the elongated leveling roller 47 is moved in the front-rear direction by a pair of left and right rodless cylinders 44. While moving horizontally, the pair of left and right thin cylinders 46 vertically move up and down.

Further, thin cylinders 50 (only one is shown) are attached to the front side portions near both ends of the slide frame 39 downward, and an elongated brush body as a pressing body is pressed against the rods of the pair of left and right thin cylinders 50. Both ends of 51 are equalizing rollers
The brush body 51 is attached in a slanting manner in parallel with 47 and with the bristle tips facing downward. The brush body 51 is moved up and down by a pair of left and right thin cylinders 50.

The operation of attaching the original film F and the base sheet S in the above-described configuration will be described.

First, in FIG. 5, with the holding frame 21 of the sticking device 1 raised to the state shown by the two-dot chain line, the plurality of suction bodies 6 are transferred from the film supply tape sticking device 3 shown in the solid line state into the stocker 2. , The upper surface of the uppermost film F in the stocker 2 is adsorbed by the plurality of adsorbents 6, and the plurality of adsorbents 6 are raised to their original positions. , The plurality of adsorbents 6 are lowered, the film F is lowered onto the surface plate 11 of the sticking device 1, and the lower surface of the film F is placed on the first suction portion 15 (first 3) and adsorbent 6
After the suction of the upper surface of the film F is released and the suction body 6 is lifted, the apparatus 3 is horizontally moved to the position shown by the solid line in the figure.

Then, in the film supply tape pasting device 3, when the suction body 6 descends to the surface plate 11 together with the film F, the tape pasting mechanism 8 also descends, and the film F
In a state where the tape T is sucked by the first suction portion 15, the tape sticking mechanism 8 is operated to stick the tape T to a plurality of locations on the upper surface of the film F as shown in FIG. When the application of T is completed, the tape application mechanism 8 is raised.

In parallel with this operation, the plurality of adsorbents 7 are lowered into the stocker 4 from the sheet supply device 5 in the state indicated by the solid line in the drawing, and the plurality of adsorbents 7 support the uppermost sheet S in the stocker 4. The upper surfaces of the plates p1 and p2 (shown in FIG. 4) are sucked,
After raising the plurality of adsorbents 7 to their original positions, the apparatus 5 is horizontally moved to the position indicated by the two-dot chain line in the figure, and the plurality of adsorbents 7 are lowered to attach the sheet S to the holding frame 21 of the attaching device 1. Then, the support plates p1, p2 of the sheet S are held and positioned on the holding rods 28, 29 of the holding frame 21, and the suction of the upper surface of the support plates p1, p2 of the sheet S by the adsorbent 7 is released. 7, the device 5 is horizontally moved to the position indicated by the solid line in the figure.

Then, when the tape F is stuck on the film F adsorbed on the first suction portion 15 of the platen 11 of the sticking device 1, a camera (not shown) for positioning the film F on the platen 11 called a plurality of dragonflies. The surface of the surface plate 11 on the positioning table 12 is moved linearly or rotationally so that the marks M move to the reference positions by photographing the marks M (illustrated in the fourth part) and performing image analysis. To adjust the position of the film F, whereby the film F is moved to the pair of positioning pins 35 of the holding rod 28 on the front side of the holding frame 21.
Position with respect to

Incidentally, the moving fee of the surface plate 11 when positioning the film F is within several mm.

As shown in FIG. 1, the sheet S supplied to the holding frame 21 of the sticking device 1 by the sheet feeding device 5 has the positioning holes h1 and h2 of the support plates p1 and p2 before and after the sheet S. Of the holding rods 28, 29 are fitted to the positioning pins 35, and the support plates p1, p2 are attracted to the magnets 36 (shown in FIG. 3) of the holding rods 28, 29. It is in a state of being held and positioned by the pair of holding rods 28, 29.

In this state, as shown in FIG. 1, the front side of the sheet S is lifted upward by the leveling roller 47 of the sticking device 1, and the supporting plate p2 on the rear side of the sheet S is correspondingly lifted. The holding rod 29 on the rear side of the held holding frame 21 is moved slightly forward by the thin cylinder 32 so as not to tension the sheet S.

Then, the film F sucked to the first suction portion 15 of the surface plate 11 is moved to the pair of positioning pins 35 of the holding rod 28 on the front side of the holding frame 21 by the above-described movement in the surface direction of the surface plate 11. The sheet S is positioned relative to the sheet S.
In a state in which the holding frame 21 is positioned with respect to the positioning holes h1 and h2 of the front support plate p1, as shown in FIG.
, And the sheet S approaches the film F.

In this state, assuming that the sheet S is not lifted by the leveling roller 47, the sheet S is at a height at which the sheet S comes into surface contact with the film F and the surface plate 11.

Next, the second suction part 16 of the surface plate 11 starts sucking air, and the slide frame 39 provided with the leveling roller 47 and the brush body 51 is moved rearward by the rodless cylinder 40, whereby The leveling roller 47 moves rearward in a non-contact state with the film F while rolling on the lower surface of the sheet S,
After the sheet S is squeezed, the brush body 51 rubs the upper surface of the sheet S, and the sheet S is taped with the film F.
The sheet S is moved backward while being pressed against the second suction portion 16 of the platen 11 to stick the sheet S to the tape T and
Is adsorbed to the second adsorbing portion 16 of the platen 11 to bring the sheet S into close contact with the film F.

At this time, since the brush body 51 moves following the smoothing roller 47, the brush body 51 immediately passes the tape T, the film F, and the platen 11 to the portion where the slack of the sheet S is removed by passing the smoothing roller 47. And the sheet S is lifted by the leveling roller 47 in the direction in which the brush body 51 moves.
Air elimination during
In the portion where 51 has passed, the sheet S and the film F are securely adhered without loosening.

When the movement of the slide frame 39 is completed, the leveling roller
47 moves above the gap between the rear end of the platen 11 and the rear holding rod 29, and in this state, the holding rod 29 holding the rear support plate p2 of the sheet S immediately becomes thin. While the sheet S is moved rearward by the shaped cylinder 32 to tension the sheet S, the leveling roller 47 is lowered by the thin cylinder 46 into the gap between the surface plate 11 and the holding rod 29 and is separated from the sheet S.
The sheet S adheres to the entire surface plate 11, and in this state, the sheet S
Is completely attracted to the second attracting portion 16 of the surface plate 11, and thereafter, the tape T between the sheet S and the film F
The air remaining in the surrounding area is sucked into the second suction section 16, and as a result, the sheet S and the tape T and the tape T and the film F are pressed by the atmospheric pressure, and the sheet T and the film F are stuck by the tape T. The adhesion is strengthened, and the pressing is not mechanically performed by a solid member such as a pressing member, but is performed by a static fluid pressure. The positioning accuracy between the film F and the sheet S can be maintained.

When the slide frame 39 is moved backward, the leveling roller 47 is moved by the rodless cylinder 44 to the brush body 51.
, And the interference between the leveling roller 47 and the holding rod 29 on the rear side is prevented while securing the movement stroke of the brush body 51.

After the film F and the sheet S are stuck in this manner, the brush body 51 is lifted up by the thin cylinder 50 and separated from the sheet S, and the first suction portion 15 and the second suction portion Then, when the holding frame 21 is lifted, the sheet S is raised with the film F stuck via the tape T, and the slide frame 39 is moved to the rodless cylinder 40. , The smoothing roller 47 and the brush body 51 return to their original positions without contacting the film F and the sheet S, thereby attaching the film F. The removed sheet S can be removed upward from the holding frame 21.

In the above-described embodiment, the holding frame 21 is moved with respect to the surface plate 11 in order to move the surface plate 11 and the holding frame 21 toward and away from each other. It may be.

In the above-described embodiment, the brush body is used as the pressing body.
Although 51 is used, a roller may be used as the pressing body.

In the above-described embodiment, the leveling roller 51 is used.
The sheet S is transferred to the film F and the surface plate 11 while
The leveling roller 51 can be omitted in some cases.

[Effects of the Invention] As described above, according to the present invention, when attaching the original film to the base sheet, the original film is attracted to the first suction portion on the surface of the surface plate, so that the original film is loosened. After the base sheet held and positioned on the holding frame is brought close to the original film whose position has been adjusted by moving the surface plate in the surface direction, the pressing body is moved along the base sheet to move the base sheet. The sheet is stuck to the double-sided adhesive tape stuck to the original film, and the peripheral portion of the base sheet is adsorbed to the second adsorbing portion of the platen, so that the base sheet is not loosened on the original film and the platen. Then, air remaining around the double-sided adhesive tape between the base sheet and the original film can be sucked into the second suction portion of the surface plate. The base sheet and the double-sided adhesive tape, and the double-sided adhesive tape and the original film are pressed by the atmospheric pressure, and the adhesion of the base sheet and the original film by the double-sided adhesive tape is strengthened. In addition, the pressing is performed by a solid member such as a pressing member. Since the pressure is not static and is based on static fluid pressure, the pressure-sensitive adhesive surface of the double-sided pressure-sensitive adhesive tape does not shift during pressing, and the positioning accuracy between the original film and the base sheet can be maintained.

[Brief description of the drawings]

1 is a sectional view of a sticking device, FIG. 2 is a side view thereof, FIG. 3 is a plan view thereof, FIG. 4 is an explanatory view thereof, and FIG. FIG. 4 is a schematic view of an automatic pasting machine using the pasting device of FIGS. F: Original film, S: Base sheet, T: Double-sided adhesive tape, 11: Surface plate, 15: First suction part, 16:
The second suction unit, 21... A holding frame, 35... A positioning pin as a positioning unit, 51... A brush body as a pressing body.

Claims (1)

(57) [Claims] A first suction portion for sucking a document film and a second suction portion located outside of the first suction portion for sucking a peripheral portion of a base sheet are provided on a front surface and are moved in the surface direction; A possible surface plate, a holding frame that includes a positioning portion for positioning the base sheet, and that holds the base sheet and is relatively close to and separated from the surface of the surface plate; A step of adhering the original film to the first adsorbing portion on the surface of the base plate using a pressing body movable along the surface opposite to the base plate of the base sheet, and attaching a double-sided adhesive tape to the original film; Attaching, holding and positioning the base sheet on the holding frame, moving the surface plate in the surface direction to adjust the position of the original film on the surface thereof, and bringing the holding frame and the surface plate close to each other. Base sheet and manuscript file And moving the pressing body along the base sheet to attach the base sheet to the original film via the double-sided adhesive tape, and a second suction portion of the surface plate. A method for attaching a document film and a base sheet, wherein