Apparatus for making bags

Details Apparatus for making bags Apparatus for making bags

B - Operations, Transporting

31

B

93/62

B31B 1/16 (2006.01) B31B 1/64 (2006.01) B31B 19/14 (2006.01) B31B 23/00 (2006.01)

Patent

CA 1264421

ABSTRACT Apparatus for making bags from a two-ply web of thermoplastic material comprises feed rollers for intermittently pushing forward the web in steps corresponding to a bag length into a gap between welding beams, which comprise an upper welding beam provided with drive means for lifting and lowering said upper welding beam. The apparatus also comprises a severing knife, which extends below the web and parallel to the lower welding beam beside the same and is secured to a endless tensile element, which revolves around pulleys. The upper welding beam is adapted to force down the web into the cutting range of the severing knife. The feed rollers directly precede the welding beams and are disposed in rows of upper and lower guide rods or air-blowing tubes, which rods or tubes are arranged like combs and cause the web to move between said rows in a plane disposed above the path of the knife as the web enters the gap between the opened welding beams. The lower welding beam is fixedly mounted on the frame. The continually revolving knife moves through that plane for the web which is defined by the lower welding beam as the transverse seam weld is made. Means are provided which are actuated as the upper welding beam is lowered and serve to impart a pivotal movament to the lower row of guide rods or air-blowing tubes toward the lower welding beam.

517332

Affiliated with

Also associated with

Rating

Apparatus for making bags does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for making bags, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for making bags will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1207811