DE7006597U - DEVICE FOR COPYING PRINT PLATES. - Google Patents

Description

Dipi-ΐηε. WERNER STECH

Patent attorney

61 Darmstadt,.! Cn February 19, 1970 <j «» ftlif.tr.il5i- -t Tflcfon Ό (> 1 M) I.

U-nunwjii iiip !. Ιηι ;. ^ 'Su-di. M ljjrr: mjjt, < .octlicstr 4

Utility model

the company Wilhelm Staub G.m.b.H., 6078 Neu-Isenburg,

Hermannetraße 15

concerning
"Device for copying printing plates"

Ee are devices for copying printing plates known (DBGM 1 978 664, DBGK 1 979 470 and DBGM 1 979 471).

Furthermore, a double copier frame is obviously previously used, which has a device for insertion on both sides of copy goods, and which is pivotably mounted about a longitudinal axis. Such a double copy frame allows the exposure of the from below

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already inserted printing plate takes place, while at the same time a new printing plate is inserted from above will. When the copying time has expired, the frame is swiveled and the exposure of the new printing plate begins, and this exposure time is used to remove the already exposed printing plate and again insert a new printing plate. This increases the pace of work which can be achieved with the help of such a device, accelerated quite considerably.

The disadvantage of the known device is that a relatively large one for pivoting the pressure plate Space is required under the pressure plate. This requires a correspondingly large distance between the printing plate and the light source, whereby the luminous efficiency deteriorates and the exposure becomes uneven.

According to the invention, this Kachteil is avoided in that the double copy frame in the upper section a closed substructure is mounted and that in the substructure vertically movable in a horizontal plane a fluorescent tube field, optionally with an upstream directional grille, is arranged. When swinging the copy frame This makes it possible to move the fluorescent tube field downwards beforehand, so that the pivoting copying frame does not penetrate the plane of the fluorescent tube field. After the end of the swivel, the fluorescent tube field is back moved up. The fluorescent tube field can be mechanically or electrically coupled to the double copying frame in this way be that when pivoting the frame, the fluorescent tube field is moved down so that it is vertical Position of the frame assumes its lowest position and comes back to the normal operating state for the copied goods, when the double copy frame is back in a horizontal one

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Is swiveled in length. Such mechanical or electrical Locks are known from other technical fields. They make it possible with the device according to the invention that the pivoting will only take place can, if the fluorescent tube field is lowered accordingly and the raising of the fluorescent tube field only takes place, when the frame has returned to its basic position. The arrangement can also be made that when the exposure is switched on, the fluorescent tube field moves to copy position and after expiry of the exposure time to return to the lower position. Both arrangements avoid accidentally using the R hmens the fluorescent tube field is destroyed when swiveling.

The device according to the invention can also with a additional point light lamp, which is arranged above, can be operated. In this way it becomes possible that for Cases in which the template does not allow working with the fluorescent tube field, with the point light lamp in conventional Way or also in the combination of directed light of the fluorescent tube arrangement and point light lamp is being worked on.

An embodiment of the invention is shown in the drawings and is described in more detail below.

Show it:

Pig.l a copier according to the invention seen from the side;

2 shows a copier according to the invention seen from the front;

Pig.3 on a larger scale the corner B * · βτ Pig.2;

Pig.4 on a larger scale corner A of the Pig.l.

As FIGS. 1 and 2 show, the double copying frame 2 is pivotably arranged in the housing 1. Below The double copy frame 2 is a fluorescent tube field 3, which can slide up and down on both sides by means of rollers 5 on rails. The device to and sliding down the fluorescent tube panel 3 driven by means of the electric motor 16 and the downstream gear 17, which in turn has a shaft 15 drives which are connected to one another via chains 11 Wheels 6, 7, 8, 9 »10 acts in such a way that the fluorescent tube field 3 can be pulled down into a Position that makes it possible to tilt the double copy frame 2.

A stand 12 is attached to the side of the housing box, on which, as shown, a point light device 13 hangs with the point light source 14.

FIG. 3 shows, in a partial view on an enlarged scale, details of the double copier frame. The shaft 26 with the mandrel 29 is arranged on the section 27 of the fixed part 23 of the housing 1. On the wave ? ^r is stored in bearings 31 of the double copying frames 2, and awar via brackets 30 »on which the plastic sheets 21 are attached. The copy is placed on top of these documents. Above that comes a glass plate 40 which is well sealed by means of the seal 22. The cover plate 20 is placed on the glass plate 40.

As FIG. 3 shows, all the parts described last are present twice, namely above and below. Printing plates 23, which are under the Virkung of the coil springs 24, "21 firmly to read paper material and the glass plate Di *." Press Kunststoffpls.ti% ^r jd ^ m 24 support from check on the common web 25.

Figure 4 shows the lowerable fluorescent tube field. The Housing 3 of the Leuchtröhreiif eldes is mounted by means of bearing blocks 35 on wheels 5 which, as already described, can slide up and down on the rails 4. The fluorescent tubes are in the housing 3 of the fluorescent tube field 37 arranged. A directional grid 36 is attached in front of the fluorescent tubes 37.

Claims (2)

protection claims 1. Device for copying printing plates with a Loppelkopierrahmen, which on both sides has a device for inserting copy and the is mounted pivotably about a longitudinal axis, characterized in that the double copying frame (2) in the upper section of a closed substructure (l) is mounted and that in the substructure (l) in a horizontal A fluorescent tube field (3) can be moved vertically on the level, if necessary with an upstream directional grille (36), arranged 5st. 2. Device according to claim I, characterized in that that the Leuohtröhrenfeld (3) aerart mechanically or is electrically coupled to the Loppelkopierrahmen (2) that when pivoting the frame the fluorescent tube field (3) is moved downwards, so that it assumes its lowest position in the vertical position of the frame (2) and again in the Normal operating condition for the copy material comes when the double copy frame (3) is back in a horizontal Position is swiveled in. 3 · Device according to claims 1 to 2, characterized characterized in that the fluorescent tube field (3) so mechanically or electrically with the Doppelkopierrahroen (2) is coupled that when you turn on the exposure, the fluorescent tube field (3) in Kopierpobition moves and returns to the lower position after the exposure time has expired. -ΊΑ. Device according to. Claim 1, characterized in that a spatial point light loop (13, 14) is arranged above the double copying frame.