Filing Information

Inventor(s)	Erwin Berner ·
Assignee(s)	Trützschler GmbH & Co. KG ·  View assignee updates
Attorney/Agent(s)	Venable · Gabor J. Kelemen ·
Primary Examiner	John J. Calvert ·
Assistant Examiner	Gary L. Welch ·
Application Number	US9843869
Filing date	04/30/2001
Issue date	03/12/2002
Predicted expiration date	11/27/2020
U.S. Classifications	191/2  · 191/11  · 191/9  · 191/7  ·
International Classifications	--
Kind Code	B2
International Classifications	19 98 · 19102 · 19104 · 19107 · 19109 · 19110 · 19111 · 19113 · 19114 ·
Related U.S. Application Data	CROSS REFERENCE TO RELATED APPLICATION This application is a continuation of pending U.S. application Ser. No. 09/722,019 filed Nov. 27, 2000. This application claims the priority of German Application No. 199 57 237.2 filed Nov. 27, 1999, which is incorporated herein by reference.
Foreign Priority	DE19957237 - 11/27/1999 ·

Patent Family

Abstract

A carding machine includes a main carding cylinder and a traveling flats assembly including flat bars circulating in a path and cooperating with the main carding cylinder. The carding machine further includes an apparatus for cleaning the flat bars. The apparatus includes a stationary track extending adjacent and transversely to the travel path of the flat bars; a carriage mounted on the track for back-and-forth travel thereon between opposite track ends; a blow nozzle mounted on the carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of the blow nozzle; and an arrangement for supplying pressurized air to the blow nozzle for causing it to eject an air jet for impinging on the flat bar clothing and for propelling the carriage along the track.

Independent Claims | See all claims (8)

1. 1. A carding machine comprising (a) a main carding cylinder having a cylinder clothing; (b) a traveling flats assembly including flat bars circulating in a predetermined path and cooperating with said main carding cylinder; said flat bars having a length oriented perpendicularly to said path and a flat bar clothing for cooperating with the cylinder clothing; and (c) an apparatus for cleaning the flat bars; said apparatus including (1) a stationary track having first and second track ends; said track extending adjacent and transversely to said path; (2) a carriage mounted on said track for back-and-forth travel thereon between said first and second track ends; (3) a blow nozzle mounted on said carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of said blow nozzle; said blow nozzle having a blow nozzle outlet; said blow nozzle having a first pivotal position in which said blow nozzle outlet is oriented in a direction pointing away from said first track end and a second pivotal position in which said blow nozzle outlet is oriented in a direction pointing away from said second track end; (4) a support on said carriage for pivotally holding said blow nozzle; (5) switching means for switching said blow nozzle from said first pivotal position into said second pivotal position upon arrival of said carriage at said first track end and for switching said blow nozzle from said second pivotal position into said first pivotal position upon arrival of said carriage at said second track end; and (6) means for supplying pressurized air to said blow nozzle for causing said blow nozzle to eject an air jet from said blow nozzle outlet for impinging on said flat bar clothing of the flat bar situated in said effective range and for propelling said carriage along said track.
2. 5. A carding machine comprising (a) a main carding cylinder having a cylinder clothing; (b) a traveling flats assembly including flat bars circulating in a predetermined path and cooperating with said main carding cylinder; said flat bars having a length oriented perpendicularly to said path and a flat bar clothing for cooperating with the cylinder clothing; and (c) an apparatus for cleaning the flat bars; said apparatus including (1) a stationary track having first and second track ends; said track extending adjacent and transversely to said path; (2) a carriage mounted on said track for back-and-forth travel thereon between said first and second track ends: (3) a blow nozzle mounted on said carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of said blow nozzle; said blow nozzle having a nozzle axis defining a travel direction of an air jet emitted by the nozzle opening; said oblique angle being composed of a first angle formed between said nozzle axis and a direction perpendicular to said path and a second angle formed between said nozzle axis and a direction parallel to said track; said first angle being approximately between −30° and 30°; and (4) means for supplying pressurized air to said blow nozzle for causing said blow nozzle to eject the air jet from a blow nozzle outlet for impinging on said flat bar clothing of the flat bar situated in said effective range and for propelling said carriage along said track.
3. 6. A carding machine comprising (a) a main carding cylinder having a cylinder clothing; (b) a traveling flats assembly including flat bars circulating in a predetermined path and cooperating with said main carding cylinder; said flat bars having a length oriented perpendicularly to said path and a flat bar clothing for cooperating with the cylinder clothing; and (c) an apparatus for cleaning the flat bars; said apparatus including (1) a stationary track having first and second track ends; said track extending adjacent and transversely to said path; (2) a carriage mounted on said track for back-and-forth travel thereon between said first and second track ends; (3) a blow nozzle mounted on said carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of said blow nozzle; said blow nozzle having a nozzle axis defining a travel direction of an air jet emitted by the nozzle opening; said oblique angle being composed of a first angle formed between said nozzle axis and a direction perpendicular to said path and a second angle formed between said nozzle axis and a direction parallel to said track; said second angle being approximately between 20° and 60°; and (4) means for supplying pressurized air to said blow nozzle for causing said blow nozzle to eject the air jet from a blow nozzle outlet for impinging on said flat bar clothing of the flat bar situated in said effective range and for propelling said carriage along said track.
4. 7. A carding machine comprising (a) a main carding cylinder having a cylinder clothing; (b) a traveling flats assembly including flat bars circulating in a predetermined path and cooperating with said main carding cylinder; said flat bars having a length oriented perpendicularly to said path and a flat bar clothing for cooperating with the cylinder clothing; and (c) an apparatus for cleaning the flat bars; said apparatus including (1) a stationary track having first and second track ends; said track extending adjacent and transversely to said path; (2) a carriage mounted on said track for back-and-forth travel thereon between said first and second track ends; (3) a blow nozzle mounted on said carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of said blow nozzle; (4) means for supplying pressurized air to said blow nozzle for causing said blow nozzle to eject an air jet from a blow nozzle outlet for impinging on said flat bar clothing of the flat bar situated in said effective range and for propelling said carriage along said track; said means for supplying pressurized air comprising (i) a duct containing pressurized air; said duct having a wall constituting said track; and (ii) a flexible pressure hose coupling said duct with said blow nozzle.
5. 8. A carding machine comprising (a) a main carding cylinder having a cylinder clothing; (b) a traveling flats assembly including flat bars circulating in a predetermined path and cooperating with said main carding cylinder; said flat bars having a length oriented perpendicularly to said path and a flat bar clothing for cooperating with the cylinder clothing; and (c) an apparatus for cleaning the flat bars; said apparatus including (1) a stationary track having first and second track ends; said track extending adjacent and transversely to said path; (2) a carriage mounted on said track for back-and-forth travel thereon between said first and second track ends; (3) a blow nozzle mounted on said carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of said blow nozzle; and (4) means for supplying pressurized air to said blow nozzle for causing said blow nozzle to eject an air jet from a blow nozzle outlet for impinging on said flat bar clothing of the flat bar situated in said effective range and for propelling said carriage along said track; said means for supplying pressurized air comprising valve means for regulating a force of said air jet.