Machine for processing web material
AssigneeBobst SA
InventorEdouard Borel
Life of this patent
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AssigneeBobst SA
InventorEdouard Borel
Estimating the term…
A machine including a feeding group or station, a first rotative cutting or creasing station, a second rotative cutting or creasing station and a rotative stripping station characterized by a single drive motor driving the various rotating tools of the stations and a feed roll of the feeding station. Each of the first and second stations and the stripping station have a frame with two lateral frame members with each of the lateral frame members having a groove for receiving bearing blocks for the upper and lower rotatable tools and one of the frame members of each groove mounts a drive pinion in a fixed position relative to the groove and in driving engagement with a gear on the shaft of the lower tool. Each of the bearing blocks have the same outer dimensions with the axis of the tool being positioned in the bearing block depending on the size of the tool so that by changing tools, the gears of the tools always engage the same drive pinion. To insure synchronization between the various groups or stations having rotatable tools, the motor drives the pinion for one station which pinion in turn is connected by a gear train to the adjacent rotatable tool station which in turn is connected by a gear train to the stripping station. In addition, the driven first pinion is connected by a drive train to a differential for driving the feed roll which differential receives a signal for correcting registration.
In a machine for processing web material comprising a feeding station, a creasing station provided with rotatable tools, a cutting station with rotatable tools, a stripping station with rotatable tools, a delivery station and drive means for rotating the rotatable tools, the improvements comprising each of the stations with rotatable tools including a frame having two lateral frame members, each lateral frame member having a groove, a drive pinion of the drive means being mounted on one of the two lateral frame members adjacent the groove, each of said grooves receiving a lower bearing block and an upper bearing block separated by a thickness plate, said upper and lower bearing blocks mounting upper and lower rotatable tools with one of the tools having a pinion in driven engagement with the drive pinion of the station, said bearing blocks having identical outside shapes regardless of the size of the rotatable tool, locking means being provided on each of the frame members for providing a locking pressure to urge the upper and lower bearing blocks downwardly with the lower bearing block engaging the lower face of the groove, said locking means including jam-preventing means for releasing the locking pressure on the bearing blocks in response to a predetermined pressure being applied to the rotatable tools;
Dependencies are inferred from the claim text.