Method of and a control arrangement for a machine for extracting fiber flocks from textile fiber bales
US4660257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Jan 31, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G7/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In order to extract fiber flocks from individual textile fiber bale groups with a substantially constant extraction power independently of density variation distribution over the bale height, the individual bale groups are subdivided into a plurality of height zones exhibiting different densities of fiber material. Then, an extracting member provided with a rotating extraction head is moved through the upper zone with a relatively large penetration depth, while the penetration depth is gradually reduced during the movement of the extracting member through the next lower zone until the penetration depth desired for the next following lower zone is reached, from which point this penetration depth is maintained until reaching the lowermost zone during the movement through which the penetration depth is again gradually increased until the last layer to be extracted is reached. A control system for performing the above method includes a microprocessor which stores the inputted desired number of passes and penetration depths for the definition of the zones, and controls the movement of the extraction member accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.