JPS6134136B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching a film original used in an automatic printing machine to a mount film.

Generally, this type of automatic printing machine prints on a transparent mount film a, as shown in the principle diagram of FIG.
For example, in the case of a color printing original plate, each film original plate B, which is a set of four sheets of yellow, red, indigo, and black, is temporarily
It is pasted and fixed with adhesive tape C, and this is printed (exposed) by irradiating transmitted light e onto a photosensitive plate (a photosensitive plate coated with a photosensitive material on the surface of an Al substrate) that will serve as a printing original plate, and then The original plate d on which this latent image has been formed is developed to create a printing original plate.

On the other hand, as shown in FIGS. 2 and 3, the conventional method for attaching a film original plate used in the automatic printing machine is a suction substrate consisting of a flat substrate g having a large number of suction holes f. (Also referred to as a mountain table) A pair of guide pins i are installed on both sides of h, and both guide holes j of the mount film a are engaged with these guide pins i and placed thereon, and at the same time, the mount film a is placed on both guide pins i. is vacuum-adsorbed by each suction hole f of the suction substrate h, and is supported horizontally. Next, a cross line a ₁ engraved on the surface of the mount film a
A pair of register marks (indicators) b ₁ drawn on the above-mentioned film original plate b for color printing forming a set of four sheets are visually polymerized, and then,
One corner of the film original plate b and its side edge are fixed to the mount film a by adhesive tapes k ₁ and k ₂ in at least two places, thereby fixing the mount film a to the mount film a. original film b
It is designed to be temporarily attached and fixed by aligning it with the reference position. In this way, the other three film original plates b are also attached in the same way.

However, in _the above-described method of attaching the film original plate, as shown in the adhesive tapes k ₁ and _{k 2} in FIG. When sticking the adhesive tapes together, _the adhesive tapes k ₁ and _{k 2 are} always pulled in one direction. Under the influence of the change, it expands and contracts, and as a result, misalignment and distortion occur between the mount film a and the original film b due to the expansion and contraction action, and the accurate reference between the mount film a and the original film b is Not only is there a risk of errors in positioning, but since the adhesion positioning is done by visual inspection, there is a risk of synergistic errors with the other three film originals used during color printing due to individual differences. be. Furthermore, the above-mentioned film original plate b can be used as a printing original plate d in an automatic printing machine.
After creating, in order to store this, again,
Although each of the adhesive tapes k ₁ and k ₂ described above must be peeled off, the work of peeling off each of the adhesive tapes k ₁ and k ₂ is performed without damaging the film original plate b.
This requires a lot of time and labor, and there is a risk that the adhesive will remain on the film original plate b and the film surface will be damaged when it is wiped off.

In order to solve the above-mentioned difficulties, the present invention reverses the polymerization order of the film original and the backing film compared to the conventional means, positions the film original with each movable reference pin without visual inspection, and furthermore, the backing film has a plurality of Through-holes are punched, and each adhesive sheet is pasted in advance so as to cover each of the through-holes, and when a mount film is superposed on the film original plate, each of the adhesive sheets is pressed onto the film original plate through each of the above-mentioned through-holes. This makes it possible to adhere the backing film and the film original plate accurately and quickly, and also makes it possible to easily perform the peeling operation during peeling work without damaging the film original plate. The present invention provides a method for attaching a film original plate for the purpose of achieving the following.

Hereinafter, an illustrated embodiment in which the present invention is applied to four film original plates for color printing will be described.

4 to 7, reference numeral 1 denotes a suction substrate composed of a flat substrate 3 having a large number of suction holes 2, and this suction substrate 1 is vacuum-adsorbed by the large number of suction holes 2. It is becoming possible to do so.
Further, a pair of guide pins 4 are installed on both sides of the suction substrate 1, and movable reference pins 5 are mounted on the front and rear sides of the suction substrate 1, for example, using an electromagnet or a cylinder device (not shown). It is provided so that it can freely move forward and backward so that it can come out and go into the suction substrate 1. Furthermore, the suction substrate 1
The reference holes 7a, 7b, 7c, and 7d formed in the film original plate 6 can be engaged with the movable reference pins 5, and the reference holes 7a form round holes. , the other reference holes 7b, 7c, and 7d form strips to restrict movement in the vertical and horizontal directions.
They are designed so that they can be engaged with each other with a margin, so that displacement due to expansion and contraction of the film original plate 6 can be corrected.

On the other hand, a transparent mount film 8 is positioned above the film original 6, and a pair of guide holes 9a and 9b are bored in the mount film 8 so that they can engage with both guide pins 4. has been done.
Moreover, although this guide hole 9a forms a round hole, the other guide hole 9b forms an elongated hole,
The elongated guide hole 9b facilitates the engagement of the guide pin 4. Further, relatively large through holes 10 are formed in the mount film 8 located at each corner 6a of the film original plate 6, and each of the through holes 10 is formed so as to cover each of the through holes 10. The adhesive sheet 11 made of
It is attached in advance.

Therefore, when attaching the film original 6 to the mount film 8 according to the present invention, the suction substrate 3
By engaging the reference holes 7a, 7b, 7c, and 7d of the film original 6 with the movable reference pins 5 on the upper part and placing it thereon, the vacuum suction is performed using the suction holes 2 of the suction substrate 3. The film original 6 is sucked onto the suction substrate 3, and then each of the movable reference pins 5 is
is evacuated into the suction substrate 3. Next, the guide holes 9a and 9b of the backing film 8 are engaged with the guide pins 4, and the film is superimposed on the original film 6. Therefore, each of the adhesive sheets 11
is pressed and pasted onto the film original plate 6 through each of the through holes 10 (see FIG. 7). In this way, the original film 6 and the mount film 8 can be accurately attached to predetermined reference positions without having to be visually inspected as in the prior art.

On the other hand, when storing the original film 6 after printing, when peeling the original film 6 from the backing film 8, the original film 6 is removed by pulling both together.
It can be easily and quickly removed without causing any damage. Further, the mount film 8 that has been used once can be reused as is.

As described above, according to the present invention, at least two
The above-described movable reference pins 5 are provided so as to be able to move forward and backward, and each of the reference holes 7a, 7b, 7c, and 7d of the film original plate 6 is engaged with each of the movable reference pins 5, and the film original plate 6 is placed on the suction substrate 1. Adsorb this film original plate 6
Each guide hole 9a, 9 of the backing film 8 superimposes on
b is engaged with each of the guide pins 4 and positioned;
Each through hole 10 is made in advance in the mount film 8 located at each corner 6a of the film original plate 6, and each adhesive sheet 11 formed so as to cover each through hole 10 is pasted. The above film original version 6
When polymerizing the mount film 8, each of the adhesive sheets 11 is pressed and attached to the film original plate 6 through each of the through holes 10.
In addition to being easy to handle, the adhesive sheet 11
It has excellent effects such as eliminating distortion and misalignment caused by the film, and not only can it be applied accurately and quickly, but also the peeling operation after the printing operation can be easily peeled off without damaging the film original plate.

[Brief explanation of the drawing]

1 to 3 are diagrams for explaining a conventional film master pasting method, FIG. 4 is a cross-sectional view showing a state in which the film master pasting method according to the present invention has been completed, and FIG. FIG. 6 is a plan view of the same, FIG. 6 is an exploded perspective view of the same, and FIG. 7 is a diagram for explaining the operation of the present invention. 1...Adsorption substrate, 2...Adsorption hole, 3...Substrate,
4... Guide pin, 5... Movable reference pin, 6...
Film original plate, 7a, 7b, 7c, 7d... Reference hole, 8... Mounting film, 9a, 9b... Guide hole, 10... Through hole, 11... Adhesive sheet.

Claims (1)

[Claims] 1 At least two or more movable reference pins are provided on a suction substrate provided with a pair of guide pins so as to be movable back and forth, and each reference hole of the film original is engaged with each of the movable reference pins, and the film original is placed on the suction substrate. Each guide hole of the mount film to be superposed on the film original plate is engaged with each guide pin for positioning, and the mount film located at each corner of the film original plate is preliminarily attached to each guide hole. A through hole is formed, each adhesive sheet formed to cover the through hole is pasted, and when a backing film is superposed on the film original plate, each of the adhesive sheets is passed through each of the through holes and the above film is pasted. A method for attaching a film original plate, characterized in that the film original plate is adhered by pressing it onto the original plate.