DE1024473B - Process for the continuous punching or embossing of fitting parts from strips or tapes - Google Patents

Description

GERMAN

When continuously punching or embossing fitting parts from strips or tapes, it is necessary to to avoid too much waste to control the feed of the material so that the distance possible between the individual punching or embossing points becomes small, but on the other hand these places do not overlap. A tour of the material by hand is unsafe and time consuming.

It is already known to punch out marks in synchronous sequence, for example on the edge of the material, which form a stop for a sensor moved with the punching or embossing tool. To at To avoid such a process disturbances in the operation of the machine, a special channel must be used to remove the debris originating from the brands. In addition, the Control that pulls back the sensor, which penetrates into the recesses or holes as a stop, so that the strip of material can be advanced further, a special additional technical effort represent.

The invention relates to a method for continuously punching or stamping fitting parts Strips or ribbons, which are also on one long side of the material to be processed in a regular manner As a result, marks are cut to limit the feed rate in the same operation. According to the invention these marks are now bent up after the incision during the The punching or embossing process is bent back again by the pressure on the die surface. Through this eliminates the need for a special control device to remove the probe from the Provide marking gaps in the material. In addition, there is also a channel for separate discharge the waste parts that arise when punching out gaps in the marking are not required.

Although it is already known to cut slots in the vicinity of the edges of a strip of material and the to bend the resulting tongues so that z. B. a gear in the gaps to transport the Workpiece can engage in the punch. To a ZuTÜckbiegen the tongues during the punching process However, it does not come about here.

The process according to the invention is explained in more detail below with reference to the schematic FIGS.

For example, in the form of a sheet metal strip 1 (Fig. 1 and 2) in the direction of the arrow through the machine Drawn material from which, for example, fitting pieces 2, as shown in FIG. 3, are to be punched out.

Continuous punching method
or embossing of fitting parts
made of strips or ribbons

Applicant:

LICENTIA Patent Administration - G. m. B. H., Hamburg 36, Hohe Bleichen 22

Werner Wiehert, Kassel
has been named as the inventor

is shaped in regular succession by a cutting tool 3 guided from bottom to top at the edge a right angle 4 cut. Through more Upward movement of the cutting tool provided with an inclined flank 5 becomes the cut tool in each case Tabs 6 bent up. Then the cutting tool 3 is moved down again so that the bent up flaps 6 can be brought to the stop with a feeler 8, which the punching or The embossing tool for the main work step triggers directly or indirectly. When the die 7 descends the bent up flap 6 is bent back into the plane of the sheet metal strip 1, so that the other Passage of the material can go on unhindered.

Claims (1)

Godfather: Process for the continuous punching or embossing of fitting parts from strips or tapes, with the one on one long side of the material to be processed in regular succession in the same Operation marks are cut to limit the feed, characterized in that the marks that are bent up after the incision during the punching or embossing process be bent back again by the pressure on the die surface. Considered publications:
German Patent No. 507,780;
U.S. Patent No. 1,541,335;
American Machinist, issue of June 26, 1950, p. 83, and issue of April 14, 1952, p. 131. 1 sheet of drawings