Drawbox air shut-off and method for doffing a textile comber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 24, 1989
Grant Date -
N/A
app pub date -
Jul 13, 1987
filing date -
Jul 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A textile comber drawbox shut-off and method are disclosed for terminating the supply of suction air to the drawbox during doffing. Suction air shut-off assemblies B are placed in suction lines 56 leading to vacuum cleaning nozzles 50, 52 of the drawback which clean coiler units A during drawing off of combed sliver 48. Pivotal flapper valves C are tied together by air cylinder D for simultaneous operation. In accordance with the method, upon a prescribed amount of sliver being deposited in cans 26, the comber and supply of suction air are stopped. Following doffing of the full cans, the comber is restarted and the supply of suction air remains shut off by closed valves C. After approximately 60 seconds, of high operation speed, the closure valves C are simultaneously actuated to once again establish suction air in drawbox enclosure 28 for cleaning. Elimination of excessive suction in enclosure 28 during restart eliminates air interference in coiler tube 40 caused by air seepage in a direction opposite that to which sliver 48 travels through coiler tube 40.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully