Feeding means for feeding a material web in a packaging machine
AssigneeMultivac Sepp HaggenmüLler SE & Co. KG
InventorsJohann Natterer, Ivo Ruzic
Life of this patent
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Abstract
A feeding means for feeding a material web in a packaging machine comprises feeding chains, sprocket wheels and an engagement element for feeding the feeding chains. In order to facilitate the insertion and clamping of the material web the engagement member is designed such that in a first portion of the travelling section the movable clamping member is lifted from the fixed clamping member in a substantially vertical direction and in a second portion of the travelling section following the first portion the movable clamping member is additionally moved laterally away from the edge of the material web to be gripped.
Claims10
Feeding means for feeding a material web from an inlet side to an outlet side in a packaging machine, comprising feeding chains disposed on both sides of the web and sprocket wheels for guiding the feeding chains, each feeding chain having link chains and clamps connected thereto for gripping the edge of the material web, the clamps having a fixed clamping member connected with the associated chain link, a movable clamping member with a clamping jaw and a compression spring for biasing the movable clamping member into the closed position, and further comprising an engagement element for engaging the movable clamping member along a traveling section of the chain where the material web is to be gripped by or released from the clamps, the engagement element being designed as a slider supported slidably in axial direction of the sprocket wheel and engaging with a guiding means extending along the traveling section for guiding the engagement element with a varying distance from the plane of the sprocket wheel while the engagement element moves along the traveling section, whereby in a first portion of the traveling section the movable clamping member is lifted from the fixed clamping member in a substantially vertical direction and in a second portion of the traveling section following the first portion, the clamping jaw of the movable clamping member is additionally moved laterally from the edge of the material web to be gripped.
Feeding means for feeding a material web from an inlet side to an outlet side in a packaging machine, comprising feeding chains disposed on both sides of the web and sprocket wheels for guiding the feeding chains, each feeding chain having chain links and clamps for gripping the material web connected thereto and having a fixed clamping member connected with the associated chain link, a movable clamping member with a clamping jaw and a compression spring for biasing the movable clamping member into the closed position, and further comprising an engagement element adapted to be brought into engagement with the movable clamping member for lifting the movable clamping member from the fixed clamping member along a traveling section of the chain where the material web is to be gripped by or released from the clamps, the engagement element comprising means for guiding the movable clamping member along a curve having a first distance from the plane of the sprocket wheel in a first portion of the traveling section and a second distance from the plane of the sprocket wheel in a second portion of the traveling section following the first portion, whereby in the first portion the movable clamping member is lifted from the fixed clamping member in a substantially vertical direction and in the second portion the clamping jaw of the movable clamping member is additionally moved laterally away from the edge of the material web to be gripped.
Dependencies are inferred from the claim text.