Transportation device for the advance by steps to the workplace in material for parts in the form of strips, barraso bands to be prepared. (Machine-translation by Google Translate, not legally binding)

摘要

Transport device for advancing in steps to the work place material for pieces in the form of strips, bars or bands to be processed, for example by die-cutting, pressing, cutting, sawing, etc., which has two pairs of tensioning elements that are find, superimposed above and below the path of advance and cooperating there for the imprisonment and tensioning, each arranged as an independent unit along this path of advance with different separation from the workplace, executing alternately its movement of imprisonment and tensioned, pairs of which the torque acting as a feed clamp further still describes an alternate displacement movement along the advancing path and the other pair acting as a holding pin is stationary in the direction of travel, and whose movements are produced by individual piston and cylinder assemblies pneumatically or hydraulically driven and governed through s of a control valve, characterized in that the control valves combined with the three plunger and cylinder assemblies of the device are connected to each other in such a way that they reciprocally change as a function of the pressure reached in each case. (Machine-translation by Google Translate, not legally binding)