JPS6046435B2 - Manufacturing method of digital display leaf - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a digital display component such as a digital display watch.

Conventionally, the method for manufacturing digital display leaves is to create a mount by printing a position display positive on multiple sides to display the position, then mount a numeric positive film with the position display on it to create a positive master plate for printing, and then print. A punching mold is manufactured to match the positive master plate for printing, and a silk screen plate made using the positive master plate for printing is used to print on both sides of the synthetic resin sheet with pin holes. It is manufactured by inserting the hole into the pin of a punching machine, aligning it, and punching it out.

However, in this method, although it is necessary to manufacture a punching mold according to the position display positive printed on multiple sides, the feed pitch and mold manufacturing time of the typesetting machine for position display positive printed on multiple sides are different. Because there is an error in the feed pitch of the leaf, the position of the pattern on the leaf after punching is often different from the original plan, and in some cases the two sheets used to display one image are Handle misalignment may occur between the leaves, resulting in a loss of commercial value, making it impossible to stably manufacture the product while maintaining the required precision.

In order to eliminate the above-mentioned drawbacks, the inventor of the present invention, as a result of research,
Using a punching die for digital display leaf punching, parts that will become leaves are punched out from a synthetic resin sheet for printing having pin holes to create a punched shell. A positive film having a pattern and a leaf punching line display frame (a frame indicating the punching location when punching leaves from a synthetic resin sheet for printing) is created, a transparent film is placed on the punched crotch, and a transparent film is placed on the transparent film. A positive film with a pattern mark of the pin hole is pasted at a position corresponding to the pin hole of the punched shell, and a positive film including a pattern of each digital display leaf on the opening edge of the punched part of the punched shell. A positive film containing the image of each digitally displayed leaf is pasted onto a transparent film by matching the leaf punching line display frame, and then the leaf punching line display frame is erased to create a positive master plate for printing plate creation. Then, using a printing plate created using this positive master plate for printing plate creation, printing is performed on both sides of a synthetic resin sheet for printing plate, and then punching is performed using the above-mentioned punching die. According to the authors, it has been discovered that the above-mentioned drawbacks can be overcome, and the present invention has been completed based on this knowledge. That is, the gist of the present invention is to use a punching die for digital display leaf punching having positioning pins to cut leaves from a printing synthetic resin sheet in which positioning pin holes that fit into the pins are opened. a step of punching out a portion to create a punched shell; a step of creating a plurality of types of positive film having a single digital display leaf pattern and a leaf punching line display frame by photolithography; A transparent film is placed on the punched shell, and a positive film with a pin hole pattern mark is pasted on the transparent film at a position corresponding to the pin hole of the punched shell, and the opening edge of the punched part of the punched shell is pasted. , align the leaf punching line display frame of the positive film containing the pattern of each digital display leaf, paste the positive film containing the pattern of each digital display leaf, and then insert the leaf punch line display frame. A process of erasing a photographic master plate using a correction technique to create a positive master plate for making a printing plate, a process of creating a printing plate using this positive master plate for making a printing plate, and a process of using the printing plate and combining it for printing. A process of inserting pins into the pin holes of the resin sheet, aligning and printing, and attaching the printed material to the punching mold by inserting pins into the pin holes of the synthetic resin sheet for printing. A method for manufacturing a digital display leaf, characterized by comprising a step of punching using the punching die.

An embodiment in which the present invention is implemented as a digital watch will be described below based on the drawings.

FIG. 1 shows a synthetic resin sheet 1 for printing for manufacturing a display leaf for a digital watch. A hard vinyl chloride resin is suitable for this synthetic resin sheet 1 in terms of printing suitability and punching suitability, and its thickness is suitably 0.3 to 0.5 TWi.

A plurality of pin holes 2 are made in a synthetic resin sheet 1 to obtain a synthetic resin sheet 3 for printing. This pin hole 2 is used for positioning during printing and punching.

As a punching die (not shown), cutting dies for each leaf are provided at a predetermined interval so that the leaves can be punched from multiple sides, and the pin holes 2 of the synthetic resin sheet 3 for printing are provided.
An alignment pin to be inserted into the pin hole 2 may be provided at a position corresponding to the position of .

FIG. 2 shows a punched shell 8 obtained by punching the printing synthetic resin sheet 3 shown in FIG. 1 using the punching die and removing portions corresponding to the respective leaves.

In FIG. 2, 7 indicates the punched portion of the leaf. Figure 3A,
b is a positive film 4 of each leaf having a digitally displayed leaf pattern 6 and a leaf punching line display frame 5, which is obtained by photographing a manuscript on which a digitally displayed leaf pattern and a leaf punching line display frame are drawn. show.

Figure 3a shows a positive film of the leaf in the lower half of 11''5J1, and Figure 3b shows a positive film of the leaf in the upper half of 11'5J1.

Further, FIG. 4 shows a positive film 4'' of a pattern mark 9 of a pin hole made by a photolithographic method in the same way.A transparent film such as a polyester film (
(not shown).

Then, align the pattern mark 9 with the opening edge of the pin hole 2 of the punching shell 8, paste the positive film 4'' with the pin hole pattern mark 9 on the transparent film, and punch out the punching shell 8. The leaf punching line display frame 5 is aligned with the opening edge of the section 7, and the positive film 4 of each leaf is pasted onto the transparent film.Then, using a photographic original correction technique, for example, reversing a positive original into a negative. Then, fill in the black and white inverted image part of the leaf punching line display frame 5 with opaque (a transparent paint used to prevent light from passing through by applying it to a part of the negative image during photoengraving). Furthermore, the leaf punching line display frame 5 is erased by the method of returning to the positive, and a positive original plate for printing plate creation is created. Since it is double-sided printing, you will have to make two copies for each side.

A silk screen printing plate was created using the positive master plate for printing plate creation created as described above, and using the created printing plate, the pin holes 2 of the printing synthetic resin sheet 3 were set in the printing machine. Insert a pin (not shown), align, and perform silk screen printing on the synthetic resin sheet 3 for printing.

At this time, in order to print accurately, it is desirable to use a silk screen plate made of stainless steel gauze with little expansion and contraction. As described above, the punching die is used on the printing synthetic resin sheet 3 that has been printed on both sides, and the pins (not shown) of the punching die are inserted into the pin holes 2 of the printing synthetic resin sheet 3. ), align and punch out.

Since the pins in the mold and the cutting die are in an immovable relationship with each other, as long as printing is done accurately, no misalignment will occur.

As explained above, the present invention requires more time and effort than the conventional method to produce a printing positive, but after that, there are no problems such as misalignment, and stable products can be manufactured.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the synthetic resin sheet for printing, Fig. 2 is a plan view of the punched shell, Fig. 3 A and b are plan views of the positive film containing the digital display leaf pattern, and Fig. 4 is a plan view of the pin hole. FIG. 2 is a plan view of a positive film with pattern marks. 1...Synthetic resin sheet, 2...Zen hole, 3...Synthetic resin sheet for printing, 4...
・Positive film, 5...Leaf punching line display frame,
6...Picture, 9...Pin hole pattern mark, 4''
...Positive film, 7... Punching part, 8.
・・・・・・Extracted shell.

Claims (1)

[Claims] 1 Using a punching die for digital display leaf punching that has positioning pins, punch out parts that will become leaves from a printing synthetic resin sheet in which positioning pin holes that fit into the pins are opened. , a step of creating a punched shell, a step of creating a plurality of types of positive films having a single digital display leaf pattern and a leaf punching line display frame by photolithography, and a step of creating a transparent film on the punched shell. A positive film with a pattern mark of the pin hole is pasted on the transparent film at a position corresponding to the pin hole of the punched shell, and an individual digital display is placed on the opening edge of the punched part of the punched shell. The leaf punching line display frame of the positive film containing the leaf pattern is aligned, and the positive film containing the individual digital display leaf pattern is pasted, and then the leaf punching line display frame is adjusted using the photographic original plate correction technique. A process of erasing and creating a positive original plate for printing plate creation, a process of creating a printing plate using this positive original plate for printing plate creation, and a process of using the printing plate and inserting it into the pin holes of a synthetic resin sheet for printing. A process of inserting and aligning pins and printing, and then attaching the printed material to the punching mold by inserting pins into the pin holes of the synthetic resin sheet for printing, and then inserting the printed material into the punching mold. 1. A method for manufacturing a digital display leaf, comprising a process of using and punching.