Metering method and metering apparatus for dispensing predeterminable quantities of fiber flocks
US5121523A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Feb 14, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G13/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A metering method or a metering apparatus for dispensing predeterminable quantities of fiber flocks per unit time by two feed rollers (18, 20; 18.1, 18.2, 170, 172) which are arranged at the lower end of a flock shaft (14, 14.1, 14.2), which are rotatable in opposite directions and which form a conveying gap between them, with an opening roll (22; 22.1, 180) preferably being arranged beneath the feed rollers, is characterized in that at least one of the feed rollers is biased in the direction of the other feed roller (18; 20.1; 170) and is movable away from the latter under the pressure of the flocks; in that the spacing (x) between the two feed rollers, or a value proportional to this distance is measured; and in that the speed of rotation of at least one of the feed rollers is so regulated that the product (n.multidot.x) of the speed and of the spacing remains constant, at least on average.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.