Apparatus for depositing sections severed from a web of film
AssigneeWindmoller & Holscher
InventorFritz Achelpohl
Life of this patent
Estimating the term…
Abstract
Apparatus for depositing successive sections, such as carrier bag blanks, severed from the leading end of a web of superposed film layers fed through a transverse welding and severing station comprises nozzles for holding said leading end taut by means of an air jet, revolving suckers for engaging said leading end, and holding means to which said leading end is transferred by the suckers after each section has been severed.
Claims14
Apparatus for depositing sections severed from a web (S) of film fed between a transverse welding and transverse severing device, comprising air jet nozzles on both sides of the film for stretching a freely advanced end of the film, means for holding margins of the film facing the nozzles, suckers (11, 12) for suction attracting and for engaging the freely advanced end of the web (S) of film stretched by the air jet nozzles, means for rotating the suckers after the section has been severed from the web to transfer the engaged section to holding means, and holding means (25, 26, 27) disposed beyond the air jet nozzles which stretch the web (S) of film for receiving the severed section from the suckers.
Apparatus for depositing sections severed from a web (S) of film fed through a transverse welding and transverse severing device, the device including means for severing individual sections from the web (S), said apparatus comprising:
- air jet nozzles disposed on both sides of the web upstream of the means for severing for stretching a freely advanced end of the web (S);
- suckers (11, 12) disposed downstream of the means for severing for suction attracting and engaging the freely advanced end of the web (S) stretched by the air jet nozzles;
- means operative after severing of a section for rotating the suckers through an arc of substantially 180.degree. from a position engaging the freely advanced end of the web (S) to a position transferring the severed section;
- means for defining a support for the severed section during rotation of the suckers (11, 12);
- holding means (25, 26, 27) disposed at the transfer position of the suckers for receving a severed section from the suckers;
- means adjoining the holding means for forming a support for a severed section received by the holding means;
- and
- at least one air jet nozzle (23) disposed above said holding means and directed towards the severed end of the section for smoothing the section onto the support or a stack forming thereon.
Dependencies are inferred from the claim text.