detection device on a spinning preparation machine and carding bar assembly provided for this

摘要

a carding set (10) has a foundation (12), needles from the carding set (11) that protrude through it, maintained by it in position and on a first side of the foundation (12) and a layer electrically conductive (13, 15) arranged on a second side away from the first side, on the foundation (12), in such a way that it electrically contacts the needles (11) on the second side of the foundation (12) . or the layer (15) is a component of the foundation (12), and the needles (11) come into contact with the layer (15) through it. the layer (15) can have a textile fabric (15) with electrically conductive fibers, coupled together, directly or indirectly, by the needles of the carding set (11), which can extend longitudinally or transversely to the carding set (10) , which has an electrically conductive contact element (20), such that it contacts the layer (13, 15) electrically, that the contact section is electrically coupled with all fibers. the contact element (20) has a connection section (16), designed to electrically contact an external element (50). a carding bar (10, 20, 30) has a carding assembly support (30) with support section and connecting section of the electrically conductive carding assembly (20) forming the outer element (50) (50), as well as, the carding set (10) kept fixed in the carding set support (30). a spinning preparation machine has such a carding bar (10, 20, 30), a carding bar holder (70) for securing the carding bar (10, 20, 30) and a contact section of the card bar carding (3), designed, in the assembly of the carding bar (10, 20, 30), in the carding bar support (70) to be electrically coupled to the connection section of the carding set (20).