US 12,077,326 B2
Apparatus and method for filling bulk materials into open bags
Heinz-Peter Felling, Beckum (DE); Dominik BLEß, Oelde (DE); Christian Rolf, Oelde (DE); and Christian Hinse, Lippetal (DE)
Assigned to HAVER & BOECKER OHG, Oelde (DE)
Appl. No. 16/610,051
Filed by HAVER & BOECKER OHG, Oelde (DE)
PCT Filed May 3, 2018, PCT No. PCT/EP2018/061378
§ 371(c)(1), (2) Date Oct. 31, 2019,
PCT Pub. No. WO2018/202789, PCT Pub. Date Nov. 8, 2018.
Claims priority of application No. 102017109495.4 (DE), filed on May 3, 2017.
Prior Publication US 2020/0062429 A1, Feb. 27, 2020
Int. Cl. B65B 1/06 (2006.01); B65B 1/02 (2006.01); B65B 37/02 (2006.01); B65B 39/10 (2006.01); B65B 39/12 (2006.01); B65B 39/14 (2006.01); B65B 43/46 (2006.01); B65B 43/58 (2006.01); B65B 51/14 (2006.01); B65B 51/32 (2006.01)
CPC B65B 1/06 (2013.01) [B65B 1/02 (2013.01); B65B 39/10 (2013.01); B65B 39/14 (2013.01); B65B 43/465 (2013.01); B65B 51/146 (2013.01); B65B 51/32 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus for filling open-mouth bags, comprising:
a control device and a filling station including a filling spout for filling the open-mouth bags and including a plurality of grippers;
wherein the grippers comprise at least feed grippers for holding the empty open-mouth bags during feeding to the filling station;
holding grippers for holding the open-mouth bags in the filling station; and
discharge grippers for holding the filled open-mouth bags during discharge from the filling station;
a conveyor device extending up to beneath the filling station for supporting and for transporting the filled open-mouth bags, the conveyor device remaining at a constant height during the filling of the bags;
the filling station accommodates the filling spout together with the holding grippers in a height-adjustable supporting structure;
the filling station is configured for lowering the supporting structure with the filling spout and the holding grippers and for taking over the open-mouth bag with the holding grippers;
the filling station is configured for elevating the supporting structure with an appended open-mouth bag so that the bottom end of the open-mouth bag is freely suspended above the conveyor device;
wherein the control device and the filling station are configured to provide an initial product thrust of a bulk material into the open-mouth bag for unfolding the bottom end of the bag which is freely suspended above the conveyor device;
wherein at least one compacting device is integrated in the conveyor device; and
wherein the filling station is suitable for lowering the supporting structure with the appended open-mouth bag onto the conveyor device so that the bottom end of the open-mouth bag is supported from beneath by the conveyor device, and is processed by the compacting device upon contact of the appended open mouth bag with the conveyor device;
wherein the height-adjustable supporting structure includes a pivot lever, wherein the pivot lever is configured to move vertically and wherein the filling spout is mounted on the pivot lever, such that the filling spout and the appended bag is moved between an elevated position and a lowered position by the movement of the pivot lever, wherein the bag is unsupported in the elevated position but can receive product through the filling spout, and wherein the bag is supported by the conveyor device when the filling spout is in the lowered position, and wherein the bag is appended to the filling spout when the filling spout is in the lowered position.