Hole punching method and apparatus

Method and apparatus for punching holes in continuously moving board material are disclosed. The holes may be decorative or functional and are punched so that no or negligible elongation results. The board is continuously moved in a first direction at a first speed and at least one member having pin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BELCHER, MARK D, HILLMAN, THEODORE E
Format:	Patent
Sprache:	eng
Schlagworte:	CUTTING CUTTING-OUT GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAND CUTTING TOOLS PERFORATING PERFORMING OPERATIONS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING STAMPING-OUT TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING
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Beschreibung
Zusammenfassung:	Method and apparatus for punching holes in continuously moving board material are disclosed. The holes may be decorative or functional and are punched so that no or negligible elongation results. The board is continuously moved in a first direction at a first speed and at least one member having pins or other projections thereon is rotated simultaneously about two axes at angular speeds such that the pins contact and punch the board during a portion of the rotation of the member while the speed of the member and the first speed are approximately equal and with the projections being in an essentially predetermined orientation to the board. Since the projections are oriented with respect to the board and are moving at approximately the same speed as the board while they contact and punch the board, there will be no or negligible elongation of the punched holes.