Machine for production of stand up pouches

A machine for the production of stand up pouches from a web of film, the machine comprising:

• a feed mechanism adapted to move the web in a feed direction at a constant speed sequentially through a punching station, a folding station, and a welding station, the welding station having a pair of seal bars which travel with the web during engagement with the web;
• wherein the machine further comprises a rotary sensor measuring the speed of the film and an optical scanner determining a position of a registration mark on the web;
• the punching station including a first electromagnetic punch and a second electromagnetic punch that are disposed spaced apart from one another in the feed direction;
• wherein the first electromagnetic punch has a pair of punch structures arranged to cut a first pair of holes in the web adjacent to a first side of a pouch;
• wherein the second electromagnetic punch has a pair of punch structures arranged to cut a second pair of holes in the web adjacent to a second side of the pouch;
• and
• wherein the pair of punch structures of the first electromagnetic punch and/or the second electromagnetic punch includes a first punch structure and a second punch structure that are disposed equidistant from a center line of the web and, when actuated, cut a pair of holes in the web that are disposed equidistant from the center line of the web.