Patent ID: 9579815
Date: 2017-02-28
CPC Classifications: B26D,B26F,Y10T

Claim:
1. A punching machine comprising: a guide member defining a material pathway for transporting a piece of material through the machine; a first sensor element disposed adjacent the material pathway for detecting a first position of an edge of the piece of material as the piece of material moves through the material pathway; a second sensor element disposed adjacent the material pathway for detecting a second position of the edge of the piece of material as the piece of material moves through the material pathway; and a punch element that punches a first aperture in the piece of material in a first area of the piece of material based on detection of the edge by the first sensor, and subsequently punches a second aperture in another area of the piece of material based on detection of the edge by the second sensor, wherein the punch element punches the first aperture prior to detection of the edge by the second sensor.