Apparatus for regulating the warp section tension during warping
US4819310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Mar 30, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02H13/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
During warping, the threads removed from the bobbins of a warp creel are supplied by means of a respective adjustable and settable thread brake to a reed located on the warping carriage of the warping machine and from that location the threads are ordered or arranged in a warp section prior to winding onto the warping drum. During operation of the warping machine, all of the thread brakes can be simultaneously adjusted by a central brake adjusting device controlled by control signals of a processor which, prior to the start of warping, stores by means of an input station, the warp section tension to be kept constant during operation, apart from other data. In the processor, the set or reference value of the warp section is constantly compared with actual value signals fed into the processor by a tension measuring device. If there exists a set value-actual value difference, the central brake adjusting device is controlled in the sense of correcting the thread tension by means of the thread brakes. The tension measuring device comprises a measuring roller which deflects the complete warp section between the reed and the warping drum and whose exposure to the warp section tension prod…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.