JPS6132766Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a printing press used for decorating plates or similar ceramic products, by replacing the printing plate.
Furthermore, the printing plate is capable of performing multicolor printing by changing the color of the ink supplied to the printing plate, and includes a male die into which the printing material can be freely attached and detached, and a male die which is attached to a predetermined position on the base plate. a female mold into which the male mold is removably inserted; a positioning engagement portion that fits into the male mold and the female mold is provided; the male mold is aligned with a register provided on a printing medium; The present invention is characterized by the provision of a register locking portion, which allows a monochrome printing machine to accurately align the printing material and perform multicolor printing without color blurring.

Conventional plate printing machines print in one color using a single printing plate formed to match the curved surface of the printing material and attached to an elevating punch. Attach printing plates with different patterns to each of the multiple lifting punches, and after printing one color, transfer the printing material to the lower part of the other lifting punches, or move the other lifting punches to the position of the printing material. The second color is printed by moving upwards, and the third color and subsequent colors are similarly printed by moving the substrate or lifting punch. Although the printing speed is fast, Because the printing plates cannot be precisely aligned, colors cannot be matched exactly as in the original drawing, and although this is not noticeable on the product, in most cases printing scratches occur.

However, in single-color stamping presses, there is no need to determine the angular position of the printing material, which is mostly round, so a lifting punch and a female die aligned with the printing plate are mounted on the underframe of the printing press. The printing operation is simple because all you have to do is attach the underframe and randomly fit the printing material into the underframe. The present invention uses such a single-color printing machine, changes the color of the printing plate and ink after printing one color, and prints in two or three colors. In this case, the most important thing to prevent color blurring is the alignment of the printing substrate. The present invention aims to make such alignment extremely easy.

An embodiment of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 indicates the base plate of the stamping printing machine, and an elevating punch (not shown) for replacing and mounting the printing plate is located at the center O of the base plate 1.
match. Of course, there is also a model in which the center O can be adjusted to some extent.

In order to supply a printing material such as a plate onto the base plate 1, a male mold 2 into which the printing material a is freely inserted and detached is used, and a female mold 3 into which the male mold 2 is removed and freely inserted are used. . The male die 2 has a concave curved surface 4 that matches the curved surface b on the lower side of the printing material a, and a fitting ring groove 5 that matches the thread bottom c.
Each part is provided with short electrostatic flocking (not shown) to prevent impact during handling of the printing material a, and lifting handles are provided at two symmetrical locations on the outer periphery. A protruding first positioning engagement portion 6 that also serves as a first positioning engagement portion 6 is provided.

The female die 3 is formed into a frame shape with a concave surface 7 into which the male die 2 is inserted from above and is tightly fitted into the female die 3. A concave second positioning engagement portion 8 is provided to protrude from the outer periphery of the concave surface 7 so that the parts are tightly fitted and dropped. This female mold 3 is mounted with the center of the concave surface 7 aligned with the center O of the base plate 1, using screws 10 etc. passed through the elongated holes of the mounting protrusion 9.

A register 11 is provided on the printing substrate a, and the male mold 2 is provided with a register locking portion 12 that precisely matches the register 11. In the implementation of the present invention, an unfired printing substrate a is formed of clay and dried. The thread bottom c is provided with a register 11 cut into a triangular shape from the lower surface, and the male mold 2 is provided with a register locking portion 12 consisting of a triangular protrusion into which the register 11 is fitted into the fitting ring groove 5.

In this embodiment, a plurality of male molds 2 having the same shape are used.
, fit the curved surface b on the lower side of the printing material a into each concave curved surface 4, rotate it a little so that the register 11 matches the register locking part 12, and perform angular positioning. The pieces are fitted one by one into the concave surface 7 of the female die 3 on the base plate 1, and the first positioning engaging part 6 is tightly fitted into the second positioning engaging part 8 to perform printing positioning. (not shown) after printing the first color, remove the male mold 2 from the female mold 3,
Thereafter, the same operation is used to finish printing, and when there is a large amount of printing material a, it is removed from the male die 2. Next, the printing plate is replaced and the second color is printed in the same manner as above, and the third and fourth colors are printed as necessary.

As clarified from the above explanation, the present invention is to mount a female mold 3 aligned with the printing plate on the base plate 1 of the same stamping printing machine, and to align and engage the female mold 3 with the female mold. The female mold 3 that fits the plates 8 and 6 is removably inserted into the male mold 2, and the printing plate and the printing material are removably inserted into the male mold 2, aligning the register 11 with the printing plate and the printing material. A is always consistent not only in center alignment but also in the angular direction, so it is possible to accurately perform multicolor printing without color fading by simply replacing the printing plate or ink of a single-color printing press. Motsu.

[Brief explanation of the drawing]

The accompanying drawings show one embodiment of the present invention, in which Figure 1 is a perspective view of the female mold 3, Figure 2 is a perspective view of the male mold 2, and Figure 3 is a perspective view of the male mold 2.
The figure is a perspective view of the bottom of printing substrate a, FIG. 4 is a plan view of the male die 2 and female die 3, FIG. 5 is a sectional view of the register 11 and the register locking part 12, and FIG. FIG. 1 → Base plate, 2 → Male mold, 3 → Female mold, 6 → First positioning engagement part, 8 → Second positioning engagement part, 11
→ Register, 12 → Register locking part, a → Printing target.

Claims (1)

[Scope of utility model registration request] In a printing press that lowers a printing plate onto a printing material such as a ceramic plate placed on a base plate to print a painted pattern, there is a male mold on which the printing material can be freely attached and detached, and a male mold on the base plate. a female mold that is attached to a predetermined position and removably fits into the male mold; a positioning engagement portion that fits into the male mold and the female mold is provided in the male mold; 1. A multicolor printing positioning device for a press printing machine for plates, characterized in that a register locking part is provided for aligning the provided registers.