DE3326453A1 - PRINTING MACHINE - Google Patents

Description

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Description:

The invention relates to a printing machine with a stamp, a cliché bearing an image and means for Inking the image, the stamp being movable between the cliché and an object to be printed in order to achieve a to transfer an image consisting of color from the cliché to the object. Generally, the stamp is made of silicone rubber. The deformability of the stamp allows the printing of objects with uneven surfaces, such as Plates of dinnerware, bottles, electronic components, etc.

Such machines use a printing plate or cliché into which the image to be printed is scratched or etched will. The cliché is colored and stripped off so that the color only remains in the etched-in recesses. A A silicone rubber stamp is pressed onto the cliché to remove the ink from the depressions and is then applied to the object to be printed on to leave a printed image thereon. There are stamps of various shapes used, e.g. conical or hemispherical stamps, to adapt them to the shape and size of the object to be printed and to the Adjust the size of the image to be printed.

When different colors are to be printed, a stamp and cliché are used to print each color. The stamps and clichés are arranged in a row and the objects to be printed are along the Row moved to be printed with each color in turn. This requires an extremely accurate index system for movement of the objects in a certain position in each of the multiple printing stations.

The present invention seeks to provide a printing machine for multi-color images or multiple images, in which the object to be printed only has to be held in one position during printing.

To solve this problem, a printing machine of the type mentioned is designed so that several images are provided and that the stamp can be moved to successively di <" Select images consisting of color and transfer them from the cliché to the object to be printed.

It is also possible to use a single cliché that carries several images from which individual images can be selected are. Alternatively, several clichés can be used, each cliché bearing one or more images. Each Cliché can have a separate inking device to produce different colors for each image or cliché to use and so enable a multi-colored print.

The various coloring devices can be individually controlled so that coloring only takes place when when the corresponding picture consisting of color is to be removed.

Other features of the invention will become apparent from the following description of the invention using an exemplary embodiment

with reference to the accompanying drawing. In the drawing show:

Fig. 1 is a schematic representation of the printing process and

Fig. 2 shows a machine with the features of the invention.

1 shows a cliché 1 into which an image is etched to a depth of, for example, 5.1 μια (0.2 thousandths of an inch). In order to print the image on a plate 2, ink is first applied to the cliché and the cliché is then wiped off with a scraper (not shown in FIG. 1) in order to remove the ink from the surface of the cliché, but with ink in the the etched recess 3 representing the image remains. A stamp 4 made of silicone rubber is pressed onto the cliché 1 and there picks up the image 5, which now consists of paint. The stamp 4 is then moved over the plate 2 and pressed against it, where it leaves an image 5 '.

The machine 8 shown in Fig. 2, which has the features of the invention, has a frame 6. At the front of the Machine is a printing table 7. The table 7 has a (not shown) receptacle for the fixation of a object to be printed. The receptacle can be designed for fixing the same objects; she can but preferably also be constructed so that it can be adapted to a wide variety of objects. The recording fixes deposited objects one after the other in the same positions. A stamp 9 protrudes from a control box 10, which is supported on legs 14. The punch is movable along two axes, namely vertically and along the machine of front to back and vice versa.

A base plate 12 fixes several clichés 11, with in every cliché has a picture drawn in. Alternatively, a single cliché can also be provided, the several Pictures or a combination of clichés that carry one or more pictures. The base plate is mounted in such a way that it can be moved sideways to the machine. A scraper 13 brushes over the surface of the clichés when the base plate is moved sideways. In addition, means (not shown) are provided for applying paint to the surface to apply the clichés.

The punch 9 can be driven electromagnetically in the vertical direction, while the forward and backward movement occurs a spindle can be effected.

When the machine is working, the base plate 12 is moved to one side, with paint being poured onto the clichés will. The base plate is then moved in such a way that the clichés are moved through under the scraper 13, to strip off excess color and to bring the clichés into the path of movement of the stamp 9, which this is in his Moves forward and backward. Der.Stempel 9 is now in a position above a selected image or Moved clichés and then pressed down on the cliché to the selected image formed by color from Take off cliché. The punch is then raised and to the front end of the machine in a position above the printing table 7 moves, where the stamp is pressed down on an object to be printed. Preferably located this station is in a certain position and the receiving device is preferably adjustable on the printing table 7, in order to be able to place the object to be printed at the desired location. After printing the first image, you can the stamp can be brought into a position above another cliché in order to create a second image different from the first

take a picture to be printed on the item. When a multicolored image is to be printed on an object, a series of plates is used, each plate bearing an image for an assigned color and each plate being coated with the assigned color. The stamp then moves between the item and each cliché in turn.

To print the different colors, a single stamp can be used as all of the color that makes up the image exists, is transferred to the object when it is pressed onto the object. However, when it is difficult to transfer all the color that makes up an image from one stamp to the object, it may be convenient to do two or to arrange more stamps in tandem on the control box, to achieve a simple construction at the same time are movable.

The machine can also print selected images from a larger number of images that are not of different colors have to. This can be useful when printing data or other variable information. The clichés then carry a range of information and the stamp is moved to a selected position to contain the desired information to be picked up and printed on the object. It can be seen that a single cliché is applied that carries multiple images and that a single color can be used to create the entire cliché or several To color clichés.

It is anticipated that the machine will be particularly suitable for printing a small number of items with Images chosen from a rich gamut, ranging from a single image of one color to a selection ranges from multicolored images.

The printing table 7 can carry a simple index mechanism. This mechanism can e.g. have a turntable, so that a second item can be placed in a receptacle while a first item is being printed will. A turning device can also be provided in order to turn an object over so that it can be attached to more than one Side can be printed.

The movement of the stamp can be precisely controlled by a programmable microprocessor. A fine adjustment device can also be used be provided to enable adjustment of the machine; furthermore, a storage device be available in order to be able to call up print programs. A lateral adjustment device for the stamp relative to the Clichés can be provided, preferably in the form that the sideways movement of the base plate 12 is controlled. On the control box 10, in which the drive for the stamp and a microprocessor are housed, a Control panel 15 are located.

Claims (1)

Patent attorneys - -:: ". ': 6300 Lahn-Giessen 1 July 21, 1983 Dipl.-Ing. Arne M is sling _. , ". ,, ",, Bismarckstrasse 43 Dipl.-Ing. Richard Schlee Telephone: CO641) 71Ο19 S / B 14.681 Alexander James CINIGLIO, 59 Kettlebury Way,
Marden Ash, Chipping Ongar, Essex, Great Britain Printing press Expectations; 1 «Λ printing machine with a stamp, one bearing an image - m cliché and means for coloring the picture, the Stamp can be moved between the cliché and an object to be printed in order to create an image consisting of color to transfer from the cliché to the object, characterized in that that several images (3) are provided, and that the stamp (4, 9) is movable in order to successively remove the Color to select existing images (5) and transfer them from the cliché (1, 11) to the object (2). 2ο machine according to claim 1, characterized in that several clichés (11) are provided, each cliché bearing an image or several images. 3. Machine according to claim 2, characterized by at least one device for inking each cliché (11). 4. Machine according to claim 3, characterized in that a plurality of devices for inking for multi-colored printing are provided.