Cutting – Interrelated tool actuating means and means to actuate work... – Work clamp
Patent
1987-06-24
1989-06-06
Schran, Donald R.
Cutting
Interrelated tool actuating means and means to actuate work...
Work clamp
83 14, 83282, 414907, 100 90, B26D 702
Patent
active
048360740
ABSTRACT:
A guillotine type cutting machine for stacks of paper sheets has a table which supports the stock to be cut and a knife which can sever the stock in a vertical cutting plane. A feeding unit is provided to advance the stock along the table across the cutting plane, and a hold-down device is provided at the cutting plane to engage and press upon the stock opposite the descending knife while the stock is being severed. This hold-down device further serves to bear upon the stock during expulsion of air from the stock preparatory to the first cutting step. The air expelling unit has a roller which is lowered onto the stock adjacent the hold-down device and is then moved along the stock toward the feeding unit to expel air from pockets between the sheets. A cover is placed between the roller of the air expelling unit and the stock so that the roller need not directly engage the topmost sheet of the stock. A pusher is provided on the feeding units to shift the stock against a lateral stop upon completion of the air expelling step but prior to the first severing step.
REFERENCES:
patent: 4509417 (1985-04-01), Brandt
Kontler Peter K.
Schran Donald R.
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