JPH0152190B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a device in which a printing drum in a stamping machine can be freely attached and detached and easily replaced.

<Prior art> In the conventional stamping machine of this type, the printing plate base with the desired printing plate attached was firmly fixed to the printing drum using screws, etc., but after the stamping machine was operated, it In order to replace the printing plate, it is necessary to use operating tools each time to perform removal and installation work, which has disadvantages such as complicated work, time consuming, and poor printing efficiency. Ta.

<Problems to be Solved by the Invention> The device according to the present invention is intended to fundamentally improve the above-mentioned conventional drawbacks, and in particular, it is possible to move several printing plates from the printing drum to one-touch operation as needed. It is intended to be easily attached and detached by movement.

<Means for Solving the Problems> An embodiment of the apparatus according to the present invention will be specifically explained with reference to the drawings. In FIGS. Showing the whole drum,
3 is a disc frame provided on both sides of the printing drum 1;
are two type holder guide rods, screw 9
5 is a round shaft of two stays, which are interposed between the guide rods 4, and screws 1.
0 to the disc frame 3, and therefore, the disc frame 3, the guide rod 4, and the round shaft 5 constitute the frame of the printing drum 1. Reference numeral 6 denotes a boss of the disc frame 3, which is fixed to the disc frame 3 by screws 7 and at the same time to the drum shaft 2 by screws 8. Reference numeral 11 designates positioning pins for a printing plate table 12, which will be described later, which are provided on the outer circumferential surface of the disc frame 3 to protrude at a predetermined interval. Reference numeral 12 denotes an arc-shaped printing plate having a width approximately 1/4 of the circumference of the disc frame 3, and holes or screw holes for attaching the pin 11 and a bullet plate 13, which will be described later, are bored at predetermined positions. It is set up. This bullet plate 13 is formed in a substantially U-shape as a whole, and the legs at both ends of the bullet plate 13 are formed to bulge out in a semicircular arc shape. It is configured to engage with the section. 1
Reference numeral 4 denotes a mounting screw that can fix the bullet plate 13 to the back surface of the printing plate stand 12. In the figure, 15 is a type, 16 is a type holder that can hold and fix the type to the guide rod 4, 17 is a mounting screw that can fix the holder 16 to the guide rod 4, and 18 is a double-sided tape or the like on the surface of the printing plate 12. This is the desired printing plate that is adhered and fixed through the plate.

<Function> As described above, the device according to the present invention has the printing drum 1.
A U-shaped bullet plate 13 having semi-circular bulges on both end legs is fixed with screws 14 to the back side of an arc-shaped printing plate 12 having a width approximately 1/4 of the width of the printing plate 12. When attaching this printing plate stand 12 to the printing drum 1, as shown in the figure, by strongly pushing both ends of the bullet plate 13 toward the drum shaft 2,
The semicircular arc portions of both legs of the bullet plate 13 are firmly engaged and locked with one corner of the guide rod 4 and the side of the stay round shaft 5, and at the same time, the positioning pin 11 is inserted into the hole in the printing plate table 12. , thereby connecting the printing plate plate 12 to the printing drum 1.
It can be easily attached to. Next, when removing the printing plate 12, simply pull the printing plate 12 strongly outward to extract the semicircular arc-shaped portions of both legs of the bullet plate 13 from the guide rod 4 and the round shaft 5. , this allows it to be taken out.

<Effects of the Invention> Since the apparatus according to the present invention has the above-described structure, the printing plate base can be easily attached and detached from the printing drum with a one-touch operation, without using specific tools as in the conventional case. Therefore, the work is extremely easy, and the printing plate table can be easily replaced.
It has the characteristics of making printing work easier and more efficient.

[Brief explanation of drawings]

1 to 4 are explanatory diagrams showing the apparatus of the present application. 1 is a printing drum, 3 is a disc frame, 4 is a guide rod,
5 is a round shaft, 11 is a positioning pin, 12 is a printing plate stand,
13 is a bullet plate.

Claims (1)

[Claims] 1 Several type holder guide rods and stay round shafts are alternately strung across and fixed on both frames of the printing drum, and a U-shaped bullet plate with the ends of both legs shaped into semicircular arcs is used as an arc-shaped printing plate. Printing in a stamping machine characterized in that the plate plate is attached to the back surface of the plate and the printing plate plate is attached to the printing drum so that the semicircular arc legs are engaged with the sides of the type holder guide rod and the stay round shaft. Drum attachment/detachment device.