US 12,071,268 B2
Bag web and method and equipment for packing items
Henrik Pape, Horsens (DK)
Assigned to SCHUR TECHNOLOGY A/S, Horsens (DK)
Appl. No. 16/496,463
Filed by SCHUR TECHNOLOGY A/S, Horsens (DK)
PCT Filed Mar. 27, 2018, PCT No. PCT/DK2018/050056
§ 371(c)(1), (2) Date Sep. 23, 2019,
PCT Pub. No. WO2018/177490, PCT Pub. Date Oct. 4, 2018.
Claims priority of application No. PA 2017 70218 (DK), filed on Mar. 27, 2017.
Prior Publication US 2020/0369416 A1, Nov. 26, 2020
Int. Cl. B65B 43/12 (2006.01); B65B 7/02 (2006.01); B65B 43/26 (2006.01); B65B 61/06 (2006.01); B65D 30/20 (2006.01); B65D 75/42 (2006.01)
CPC B65B 43/123 (2013.01) [B65B 7/02 (2013.01); B65B 43/267 (2013.01); B65B 61/06 (2013.01); B65D 75/42 (2013.01); B65D 31/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for packing items, liquid or bulk goods in bag items of a bag web, the method comprising steps of:
providing the bag web, wherein the bag web comprises a zip closure, which is applied parallel to the upper edge of the bag web and is continuous for the entire length of the bag web;
providing a transport path of the bag web, wherein the transport path is defined by a filling station, a first guide, and a second guide, wherein the first guide and second guide are separate from each other, wherein the first guide and the second guide are positioned on opposite sides of the filling station along the transport path, wherein the first guide is arranged to retain and guide the bag web to the filling station and the second guide is arranged to retain and guide the bag web from the filling station, wherein the second guide is arranged to grip around and clamp the zip closure along the bag web, and wherein the second guide comprises a belt and a gripping surface and/or a belt, spring, or chain drive and a clamp, wherein the filling station comprises a first finger positioned near the first guide and a second finger positioned at the second guide, wherein the first finger and second finger are positioned on the transport path and the first finger and second finger are perpendicular to the transport path, and wherein the first finger opens the bags continuously by separating parts of the zip closure of the bag web during passage of the bag web through the filling station as an uppermost part of side walls of the bag web are not sealed between two successive bag items, thereby preventing collapse during filling;
forcing the bag items open by
briefly stopping the second guide and the bag web, while the first guide continuously feed the bag web forwards towards the filling station, and/or
briefly increasing the feed speed in the first guide and maintaining or
reducing the feed speed in the second guide.