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The Further development of Oscillating knife cutting machine
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The Further development of Oscillating knife cutting machine

Views:2     Author:Site Editor     Publish Time: 2017-02-14      Origin:Site

The Further development of Oscillating knife cutting machine

For several years, Oscillating knife cutting machine are used to cut and severe foamed materials etc. The band knives run over a plurality of knife deflecting pulleys and span freely in a cutting zone for a length of up to 2.5 m. Such a cutting machine is known, for example, from the applicant's documents DE 11 84 069 or DE 75 50 595. With such cutting machines, however, it is necessary to return the band knife above the material so that a large frame is required for the circulating band knife. A Oscillating knife cutting machine is known from DE 101 29 909, in which the band knife is twisted by means of a knife rotating head, so as to perform contour cutting.


It is further known that Oscillating knife cutting machines may use knives guided in opposed directions. These are advantageous in that a particularly advantageous cutting becomes possible, since the arrangement of the knives in opposed directions results, seen on a microscopic level, in a tearing of the material, where the arrangement in opposed directions allows effecting the tearing at twice the speed of a knife guided in a single direction.


Band knives guided in opposed directions are known, for example, from JP 06182691 and DE 101 29 909 A1.

Some known Oscillating knife cutting machines guided in opposed directions have a problem that contour cutting is difficult to perform with these, since, due to the type of knife guiding, a large part of the machine would have to be taken along as the cutting portion of the knife is turned. Turning only the cutting portion of the band knife, as described above, is not possible with a double band knife, since the band knives would become offset with respect to each other if they were twisted.


For the cutting machine known for example from DE 101 29 909 A1, it has been found, however, that the service life of the knives is relatively short due to the great stress in the guiding means.

Therefore, it is an object of the present invention to provide a cutting machine having an endless band knife, in which the band knife is guided in opposite directions in a cutting zone of the band knife, the guiding means being adapted to be realized with little technical effort regarding devices, and, at the same time, a long service life of the band knife is possible.


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