JPH01269540A - Printing method and printer thereof - Google Patents

Abstract

PURPOSE:To make intermittent operation and operation for a prolonged term impossible, to eliminate the need for ink washing after the completion of operation, and to improve workability by taking out ink by an intaglio printing from an ink fountain section, transferring the ink to a letterpress and conducting printing by the letterpress. CONSTITUTION:A cylinder type printer is composed of an ink fountain section 2, an intaglio printing roller 3, a printing element section of which is indented, and a letterpress roller 4 to which a letterpress is installed. In the mechanism, the intaglio printing roller mounted so as to block the outlet of the ink fountain section is turned, ink 1 is taken out by the intaglio-printing printing element section 31, ink 1 is transferred to the letterpress printing element section 41 of the letterpress roller synchronously rotated with the intaglio printing roller, and printing is performed to a print 7 moved at the same speed as the peripheral speed of the letterpress roller by the letterpress. Since only minimum ink required for one-time printing is extracted from the ink fountain section, ink is not dried, and intermittent operation and operation for a prolonged term are enabled. Since the adhesion of ink is limited to the picture element section of the intaglio printing and the printing element section of the letterpress, washing after the completion of printing work is unnecessitated, thus extremely improving workability.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a printing method for printing on small parts and the like, and a printing machine for printing by the method.

(Prior Art) Conventionally, printing machines using letterpress have been used in many cases for printing on small parts, and only a few have used printing machines using intaglio.

Conventional letterpress printing machines use an ink knife to adjust and draw out the amount of ink adhering to the ink dispenser roller from the ink reservoir, transfer it to the ink transfer roller, inking roller, and printing area of the letterpress, and then directly print it with the letterpress. Printing was done by transferring the ink from the printed area to a rubber cylinder and pressing the cylinder against the printed material.

In addition, printing machines using intaglio plates take out ink from the ink reservoir at the image area of the intaglio plate, transfer the ink from the image area to a rubber cylinder, and press the rubber cylinder against the printed material to perform printing. .

(Problems to be Solved by the Invention) Conventional letterpress printing machines deposit ink on the outer periphery of the ink dispenser roller from the ink reservoir, draw it out, transfer the ink to the outer periphery of the inking roller, and remove the ink. It was transferred to letterpress and used for printing. Therefore, the ink is drawn out from the ink reservoir and comes into contact with the outside air. Of the ink drawn out, only a few percent is used for direct printing, and the remaining unused ink returns to the ink reservoir while being in contact with the outside air. Repeat the above operations. Therefore, the time that the ink is in contact with the outside air is long, causing the ink to change in quality, and especially in the case of quick-drying ink, the ink hardens, making intermittent operation or long-term operation impossible, which has a negative impact on printing. Furthermore, after the work is completed, the ink adhering to the ink dispenser roller and inking roller must be washed, resulting in very poor workability.

In the case of intaglio printing, when the intaglio plate attached to block the outlet of the ink reservoir moves and the image area of the intaglio comes out of the ink reservoir, ink enters the image area and is taken out, which is transferred to the rubber cylinder. and then printed. Therefore, intaglio plates are made of hard steel and are difficult to process, making them very expensive, and even if you want to change a single character to be printed, you must prepare a special intaglio plate. Furthermore, when changing one character to be printed during printing, it was necessary to remove the ink from the ink reservoir, replace the plate, and refill the ink reservoir, which required a large amount of time. .

(Means for Solving the Problem) In order to solve the above-mentioned problems of the conventional device, the present invention has the following method and configuration. That is,
Take out the ink l from the ink reservoir part 2 with the intaglio plate 3,
The ink l was transferred to a relief plate 4, and printing was performed using the relief plate 4.

Further, the mechanism of the present invention is constructed as follows.

An intaglio plate 3 is movably attached so as to close the outlet of the ink reservoir part 2, and a letterpress plate 4 is provided which transfers the ink 1 that has entered the intaglio printing line part 31 due to the movement of the intaglio plate 3.
is pressed onto the printed material 7, or a blanket cylinder 6 is provided and transferred thereto, and the blanket cylinder 6 is configured to be pressed against the printed material 7.

(Function) The intaglio printing line part 3I is a recess with a constant depth and a minimum area that covers the whole of the letterpress printing line part 41, and the ink 1 is taken out from the ink reservoir part 2 through the depression of the intaglio printing line part 31. , the ink 1 is transferred to the relief printing line portion 41.

(Example) Embodiments of the invention will be described with reference to the drawings.

FIG. 1 is a flowchart representation of the method of the present invention.

FIG. 2 is a flowchart representation of an application example of the method of the present invention.

First example FIG. 3 shows a partially sectional side view of a first embodiment of the invention.

The first embodiment is an example in which the mechanism of the present invention is applied to a circular pressure printing machine, and is composed of an ink reservoir 2, an intaglio roller 3 whose printing area is a depression, and a letterpress roller 4 to which a letterpress is attached. .

This mechanism rotates the intaglio roller 3 attached so as to block the outlet of the ink reservoir $2, takes out the ink l through the intaglio printing line section 31, and transfers it to the letterpress printing line section 41 of the letterpress roller 4, which rotates synchronously with the intaglio roller 3. The ink 1 is transferred, and the letterpress prints on a printed matter 7 that moves at the same speed as the outer peripheral speed of the letterpress roller 4. Second Embodiment FIG. 4 shows a partially sectional side view of a second embodiment of the invention.

The second embodiment is an example in which the mechanism of the present invention is applied to a circular pressure printing machine, and includes an ink reservoir 2, an intaglio roller 3 whose printing area is a recess, a relief roller 4 to which a letterpress is attached, and a rubber cylinder. Consists of 6.

This mechanism rotates the intaglio roller 3 attached to block the outlet of the ink reservoir 2, takes out ink l through the intaglio printing line part 31, and transfers the ink l to the letterpress printing line part 41 of the letterpress roller 4, which rotates synchronously with the intaglio roller 3. The ink 1 is transferred and transferred by the letterpress onto a blanket cylinder 6 that rotates in synchronization with the letterpress roller 4, and the blanket cylinder 6 is pressed against a printed matter 7 that moves at the same speed as the outer circumference of the blanket cylinder 6 to perform printing.

Third embodiment FIG. 5 shows a partially sectional side view of a third embodiment of the invention.

' The third embodiment is an example in which the mechanism of the present invention is applied to a circular pressure printing machine, and an ink reservoir 2, an intaglio roller 3 whose printing area is a depression, an inking roller 5, and a letterpress are attached. It is composed of a letterpress roller 4 and a blanket cylinder 6.

This mechanism rotates the intaglio roller 3 attached so as to block the outlet of the ink reservoir, takes out the ink 1 through the intaglio printing line section 31, transfers the ink 1 to the inking roller 5 which rotates in synchronization with the intaglio roller 3, The ink 1 is transferred to the letterpress printing line part 41 of the letterpress roller 4, and the letterpress transfers it to the rubber cylinder 6 that rotates in synchronization with the letterpress roller 4, and the printed material moves at the same speed as the outer circumference of the rubber cylinder 6. 7 to press the rubber cylinder 6 to perform printing.

Fourth example 6 and 7 show partially sectional side views of the fourth embodiment.

The fourth embodiment is an embodiment in which the mechanism of the present invention is applied to a flat pressure printing press, and is composed of an ink reservoir 2, an intaglio plate 3 having a flat plate surface, and a letterpress plate 4 having a flat plate surface. As shown in Figure 6, the intaglio plate 3 blocks the outlet of the ink reservoir 2, and in the next operation, the seventh
As the intaglio plate 3 moves in the direction of the printing plate as shown in the figure,
The ink is taken out from the intaglio image line part 31, the ink 1 is transferred to the relief image line part 41, and it is pressed against the printed material 7 to perform printing. Furthermore, it is also possible to provide a rubber pad section in the mechanism of the fourth embodiment, and after transferring the ink l of the letterpress printing line section 41 to the pad section, printing can be performed by pressing the pad against the printed material 7.

(Effects of the invention) With the mechanism configured as described above, only the minimum amount of ink required for one printing is taken out from the ink reservoir, so there is no ink drying, and when printing is not performed, the intaglio plate is By stopping the printing area within the ink reservoir, the ink can be sealed and prevented from drying, and when printing is required, printing can be started immediately by rotating the intaglio plate.

From the above points, intermittent operation or long-term operation is possible, and since ink adheres only to the image area of the intaglio plate and the image area of the letterpress plate, there is no need for cleaning after printing is completed. My sex has improved a lot. In addition, since letterpress is used for direct printing, inexpensive rubber stamps and type can be used on the plate, and the plate can be replaced, making it easy to change printed characters, etc.

As described above, the method and mechanism of the present invention solve the problems that the plates of conventional intaglio printing machines are expensive, that the workability of replacing plates is poor, and that the ink of letterpress printing machines deteriorates due to drying. Intermittent operation and long-term operation are now possible. Furthermore, problems such as poor workability due to cleaning after completion of work could be solved.

[Brief explanation of the drawing]

1 and 2 are flowcharts of the method of the present invention. FIG. 3 is a partially sectional side view of the first embodiment. FIG. 4 is a partially sectional side view of the second embodiment. FIG. 5 is a partially sectional side view of the third embodiment. 6 and 7 are partially sectional side views of the embodiment. 1 is ink 2 is ink reservoir 21 is the lid 3 is the intaglio 31 is the intaglio printing line part, 4 is the letterpress 41 is the relief printing line part, 5 is the inking roller 6 is rubber cylinder 7 is printed matter Patent applicant Takeshi Ltd. 1) Giken Diagram 1 Figure 6 Figure 7

Claims (2)

[Claims] (1) A printing method in which ink is taken out from the ink reservoir by the image area of an intaglio plate, the ink is transferred to the image area of the letterpress plate, and the ink transferred to the image area of the letterpress plate is used for printing. (2) A printing machine consisting of an ink reservoir, an intaglio section that takes out ink from the ink reservoir, and a letterpress section that transfers the ink and performs printing.