Control for bag making machine

Details Control for bag making machine Control for bag making machine

B - Operations, Transporting

31

B

156/21, 93/32

B31B 23/60 (2006.01)

Patent

CA 1052605

Abstract of the Disclosure Apparatus for making a succession of bags from a web of sheet material which has been printed with a series of spaced parallel bands of heat activatable adhesive located at intervals corresponding to the lengths of the bags to be made wherein the web is formed about a mandrel into a tube and advanced therealong to sealing instrumentalities situated forwardly of the mandrel in the direction of movement, a pair of endless belts paralleling the mandrel for advancing the tube along the mandrel toward the sealing instrumentalities and a detector responsive to the presence of a band of adhesive on the web and located at a place in the path of movement of the web which corresponds to a whole number of bag lengths from the sealing instrumentalities which controls the feeding means so as to feed one bag length at a time relative to the sealing instrumentalities.

289467

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