US 11,718,931 B2
Weaving machine, method for simultaneously weaving two pile fabrics on such a machine and pile fabric obtainable with such a method
Andreas Schnabel, Bindlach (DE); Martin Burkert, Bayreuth (DE); Karsten Siebert, Weidenberg (DE); and Bert Pols, Pt Mijdrecht (NL)
Assigned to STAUBLI BAYREUTH GMBH, Bayreuth (DE)
Appl. No. 16/620,063
Filed by STAUBLI BAYREUTH GMBH, Bayreuth (DE)
PCT Filed Jun. 15, 2017, PCT No. PCT/EP2017/064674
§ 371(c)(1), (2) Date Dec. 6, 2019,
PCT Pub. No. WO2018/228694, PCT Pub. Date Dec. 20, 2018.
Prior Publication US 2020/0123686 A1, Apr. 23, 2020
Int. Cl. D03D 39/18 (2006.01); D02G 3/34 (2006.01); D03D 27/10 (2006.01); D06P 5/30 (2006.01); D03D 15/54 (2021.01)
CPC D03D 39/18 (2013.01) [D02G 3/346 (2013.01); D03D 15/54 (2021.01); D03D 27/10 (2013.01); D06P 5/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A weaving machine for simultaneously weaving a top pile fabric and a bottom pile fabric, each pile fabric presenting one or several pile patterns and including tufts made from pile warp yarns, binding warp yarns and weft yarns, the machine comprising
a pile warp yarns feeding unit,
a binding warp yarns feeding unit,
a shedding unit for creating a shed with the pile warp yarns and the binding warp yarns, said pile warp yarns for the top pile fabric and for the bottom pile fabric forming a warp sheet made by juxtaposition of the pile warp yarns between the pile warp yarns feeding unit and the shedding unit, wherein the warp sheet consists of the pile warp yarns,
a weft insertion unit for inserting the weft yarns in the shed, in successive insertion cycles,
a beating-up mechanism for beating the weft yarns into the shed,
a take up system for taking-up the two pile fabrics,
a control unit for controlling operation of the weaving machine,
a treatment unit located along a path of the warp sheet between the pile warp yarns feeding unit and the shedding unit for printing segments of differently colored inks on at least some of the pile warp yarns for the top pile fabric and segments of different colored inks on at least some of the pile warp yarns for the bottom pile fabric, and
an adjusting sub-assembly, different from the treatment unit and interposed on the path of the warp sheet, for simultaneously adjusting, in the warp sheet, a position of the segments of differently colored inks in the top pile fabric and the segments of different colored inks in the bottom pile fabric, wherein the adjusting sub-assembly includes at least one sensor for determining, in the warp sheet and along the pile warp yarns, the position and/or the length of the segments of differently colored inks on the pile warp yarns for the top pile fabric and the position and/or length of the segments of different colored inks on the pile warp yarns for the bottom pile fabric.