Patent ID: 7987755

Claim:
A device for forming sleeve-like foil envelopes from a continuous flat strip of a shrinkable sleeve-like envelope foil material comprising: a supply member for supplying the continuous flat strip of shrinkable sleeve-like envelope foil material wherein the continuous flat strip of shrinkable sleeve-like foil envelope material when cut is predisposed to seal together at the cut surfaces; a cutting member for making a cut in the strip of shrinkable sleeve-like envelope foil material over the full width thereof so as to provide individual sleeve-like foil envelopes, wherein the cut surfaces of the envelope material are unsealed; and a discharge member for discharging the individual sleeve-like foil envelopes from the device, wherein the cutting member comprises at least two cutting elements that are movable relative to the flat strip of shrinkable sleeve-like envelope foil material, each cutting element comprising a cutting blade extending parallel to at least part of the width of the strip, in such a manner that the individual cutting blades of each of the cutting elements cooperate in successive cutting operations to form several partial cuts contiguous to each other in the strip of shrinkable sleeve-like foil envelope material over the entire width thereof; wherein the device is provided with at least one sensor, which is arranged for detecting markings provided some distance apart on the continuous strip of shrinkable sleeve-like envelope foil material and delivering a measuring signal on the basis of the detection, wherein on the basis of the measuring signal the cutting member forms partial cuts in the strip of shrinkable sleeve-like foil material; and a conveying member comprising a guide element positioned within the strip of shrinkable sleeve-like envelope foil material over which the strip of sleeve-like foil material can be led during operation, wherein the guide element extends beyond the cutting member when viewed in the direction of transport of the strip of sleeve-like foil material; and wherein the guide element has at least two distinct openings formed therein each with a portion of the guide element positioned laterally to the opening, each guide element opening accommodates at least one cutting blade, respectively, during each of said successive cutting operations.