Melzer Maschinenbau Gmbh

Melzer Maschinebau Gmbh

Rainer Melzer

Roland Melzer

A method for producing data carriers equipped with integrated transponders is disclosed in which the transponders are supplied in a transponder web and are covered on one side with a label, wherein the transponders are separated and aligned before being assembled with an associated label. The disclosure further includes an apparatus for producing data carriers equipped with an integrated transponder that includes a device for supplying a first web of labels and a device for supplying a web of transponders adjoining one another and includes a joining station for cutting and separating the transponders from the transponder web which divides the transponders from the web, separates them and transfers them individually to the label web.

Method and apparatus for producing data carriers equipped with an integrated transponder

The invention relates to a device for laminating a layered structure ( ), consisting of at least two plastic strips in sections, comprising successive panels with designs, for producing plastic cards along a conveyor path. Said device comprises heating and cooling devices ( ) which are positioned one behind the other and consist of individual compression elements, located on a common support ( ), whose temperature can be controlled and which accommodate a whole number of panels and a drive unit which displaces opposing compression belts ( ) which can be driven intermittently in a direction of transport and between which the plastic strips can be displaced in sections through the heating and cooling devices. The aim of the invention is to provide a device which permits the production of plastic cards with a higher laminate quality. To this end, the compression elements are mounted so that they can be displaced in the direction of the conveyor path against a restoring force which acts upon their initial position.

Device for laminating a layered structure consisting of at least two plastic strips in sections

Process for producing plastic cards

When producing plastic cards, a plurality of layers is laminated under application of heat and pressure resulting in unpredictable shrinking. In order to compensate shrinking, the laminated web is elongated to adapt to its nominal alignment size. Elongation is produced by material displacement along grid bars separating to-be-fabricated cards later punched off the web leaving a waste grid.

Method for compensating shrinkage of plastic webs

A method to fabricate plastic cards is disclosed. A substrate tape is perforated with evenly spaced holes, and when placed in a working station, positioning pins engage into the holes. The spacing between two sets of pins is then slightly increased thereby tensioning the tape without stretching it thereby providing for highly accurate alignment.

Method for fabricating plastic cards

In a system for processing a plastic web plural work stations are disposed on an elongated beam. The web is provided with positioning holes cooperating with complementary pins in at least one work station. As the distance spacing allocated holes may vary due to shrinking, the beam may be bent about a transverse axis into a ring sector shape thereby adapting the pin distances to the actual hole distances.

System for processing a web of plastic material

A machine tool comprises a spindle head displaceable in two orthogonal directions. The spindle head supports a plurality of main spindles and at least one common central driving gear. The spindle head is suspended by means of three flexible rods and a stationary main drive motor is coupled to the driving gear via a flexible shaft. To be used for milling recesses into plastic cards, the recesses being dimensioned to receive electronic chips.

Machine tool

A relief printing technique wherein the material to be printed on is placed between an inked relief and a supporting assembly comprising a dressing web and a second relief reproducing the pattern of the printing relief.

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Schwelm, Germany

Rainer Melzer