DD263263A1 - PAINTING DEVICE IN EXPENSES OF PRINTING MACHINES - Google Patents

Abstract

Painting device in displays of printing machines for applying a paint layer by means of a painting, which is associated with a counter-pressure cylinder and a coating unit formed by rolling and the painting cylinder between the upper and lower run and the chain circle is arranged and the leadership of the chain in this area is done by rails arranged on both sides , The object of the invention to provide a painting equipment in displays of printing presses, which is space-saving in their arrangement is achieved by providing a permanently connected to this Lackierzylinder between the two rear Kettenumlenkraedern. Fig. 1

Description

Painting device in displays of printing presses for applying a paint layer by means of a painting cylinder, which is associated with a counter-pressure cylinder and a coating unit formed by rolling and the Lackierzyünder between the upper and lower run of the chain circle is arranged and. the chain is guided in this area by rails arranged on one side.

Characteristic of the known state of the art

In DE-OS 3114076 a sheet-fed rotary printing machine is shown with a transport chain system.

The printed sheet is transferred from the last printing unit to the gripper carriage of the boom chain, fed to the delivery and placed on the delivery pile.

If the gripper carriage is located at the highest point of the delivery, in the area of the lower run, the printed sheet can be subjected to a further treatment. By a Lackierzylihder, which is located between the upper and lower run of the boom chain circuit and this is associated with a counter-pressure cylinder and a coating unit, the printed sheet can finally white lacquered the.

In the area of the painting cylinder, the boom chain is guided on both sides by an upper and a lower rail.

Due to the elongated design of the Auslegekettenkreises a smear-free bowing between the last printing unit and Lackierzyünder only with the use of additional sheet guiding is possible. The overall length is exceeded by a substantial compared to the standard version.

Object of the invention

It is an object of the invention to provide a painting in displays of printing machines, which is fair with the lowest possible technical effort of a high operating speed with an optimal bowing.

Explanation of the essence of the invention

It is an object of the invention to provide a painting equipment in displays vcn.Druckmaschinen, which is space-saving in their arrangement;

According to the invention, the object is achieved by providing a firmly connected with this' ackierzylinder between the two rear Kettenumlenkrädern that the Lackierzyünder and dan rear Kettenumlenkrädern the common shaft is assigned, that the rear Kettenumlenkräder and the Lackierzyünder in single or double-large Zyiindersystem can be arranged and that the transfer drum is assigned to the Lackierzyiinder counter-cylinder, the transfer drum from the last printing unit.

Embodiment ·

The invention will be explained in more detail below using an exemplary embodiment.

In the accompanying drawing show:.

1 shows a side view of the sheet delivery with the device according to the invention. FIG. 2 shows a section along the line A-A of FIG. 1

1 shows the sheet delivery in its side view with the delivery pile (1), the boom chain circle (2), consisting of an endlessly circulating chain (3), on which the gripping PA'agen (4) are fixed, the upper and lower strand (3.1,3.2) of the chain (3) and the associated front and rear derailleur wheels (5,5.1).

To guide the chain (3) in the region of the rear Kettenumlenkräder (5.1) rails (6) are provided. On the shaft (7), the painting cylinder (8) and on the left and right of each a rear Kettenumlenkrad (5.1! Permanently ordered. The painting cylinder (8), which is located between the upper and lower run (3.1,3.2) of the chain (3) , the coating unit (9) and vertically under the painting cylinder (8) are associated with the impression cylinder (10) .The transfer drum (11) is between the impression cylinder (10) of the delivery and the printing cylinder of the last printing unit (for reasons of clarity not with shown) at a small angle (α).

FIG. 2 shows the device according to the invention in section. Evident is the drive shaft (14) arranged thereon with the impression cylinder (10) and the drive wheel (13) which engages in the teeth of the on the shaft (7) seated counter-wheel (12). The shaft (7) is at the same time drive for the arranged on her rear Kettenumlenkräder (5.1) and for the painting cylinder (8).

The operation of the device is the following:

The printed sheet is taken from the Übergabetrommei (11), fed to the impression cylinder (10) and conveyed to the highest point of the impression cylinder (10). There, the transfer of the sheet to the gripper carriage (4) of the boom chain circuit (2) and the sheet can be promoted and stored on the Auslegestapel (1). The drive wheel (13) drives the on the drive shaft (14) arranged impression cylinder (10) and sitting on the shaft (7) mating gear (12), at the same time the painting cylinder i8) and the rear Kettenumlenkräder (5.1) with the Move the chain (3) hanging hook carriage (4) into motion. The sheet transferred from the counter-pressure cylinder (10) to the gripper carriage (4) is provided with a coating application in the sheet transfer area by means of a coating unit (9) associated with the coating cylinder 8. The condition for this is that the drive of the coating cylinder (8) and the rear chain reversing wheels (5.1) from a common shaft (7) takes place and the diameter of Lackierzylir.der (8) and rear Kettenumlenkrädern (5) are the same size to guarantee a uniform application of paint and an exact sheet transfer The arrangement of the coating unit (9) and of the painting cylinder (8) between the upper and lower run (3.1,3.2) of the delivery chain circle and vertically above the. impression cylinder (10) has the advantage that the freshly painted sheet is already in the storage height of the delivery pile (1) and no longer has to be curved by the sheet transport The Läckierzylinder (8) and the rear Kettenumienkräder (5) can be simply big en cylinder system as applied in the double-size cylinder system, while the center distance (B) and the height of the delivery pile (1) is influenced. By installing the transfer drum (11) and counter-pressure cylinder (10), the chain guide is saved in the ascending region of the delivery and the associated sheet guiding elements and replaced by simple means. The cylinder design allows better interchangeability, a more flexible conversion and the delivery can be considered as an aggregate.

Between painting cylinder (8) and Auslegestapel (1) it is possible to install additional equipment (eg dryer, second Auslegestapel). The painting cylinder (8) can also be converted, z. B. as a cutting or perforating.

Claims (4)

claims: 1. Painting in displays of printing presses for applying a paint layer by means of a painting cylinder, which is associated with a counter-pressure cylinder and a coating unit formed by rollers and the painting cylinder between the upper and lower run of the chain circle is arranged and the leadership of the chain in this area by one-sided rails takes place, characterized in that between the two rear Kettenumlenkrädern (5,1) is provided with this permanently connected Lackierzylinder (8). 2. Painting device according to claim 1, characterized in that the painting cylinder (8) and the rear Kettenumlenkrädern (5.1) is associated with the common shaft (7). 3. Lackiereinrichiung according to claim 2, characterized in that the rear Kettenumlenkräder (5.1) and the Lackierzyünder (8) in the single or double-large cylinder system can be arranged. 4. Painting device according to claim 1, characterized in that the painting cylinder (8) tangential impression cylinder (10) is associated with the transfer drum (11) from the last printing unit. For this 2 pages drawings
Field of application of the invention