Textiles: cloth finishing – Napping – Planetary
Patent
1994-04-25
1995-12-12
Crowder, C. D.
Textiles: cloth finishing
Napping
Planetary
26 32, D06C 1100
Patent
active
054738016
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a wire card napping machine for fabrics with at least one driven cylinder, several rotatable and lockable pick-up devices each of which is equipped with at least one napping roller of a different roller type and is embedded in the side disks of the cylinder.
The surface of the textile fabric is napped (napping effect) by the wire card napping machine using a differential speed between the textile fabric to be napped and the napping rollers. As a result of such napping, an increased heat-holding capacity and a wooly, fleecy handle are attained. To achieve napping effects, napping rollers of the same roller type (counter-pile rollers or pile rollers) or napping rollers of different roller types (counter-pile rollers and pile rollers in the same or different ratio to one another) are used. Moreover, the possibility also exists of using different card clothings for the napping rollers.
A wire card napping machine with several revolve-shaped pick-up devices embedded in side disks of a cylinder has been proposed (German patent No. 401,721). Each pick-up device is equipped with several napping elements in such a manner, that only one napping element of each pick-up device is in the working position and that the textile fabric is napped first with a blunt and then, corresponding to the progressing operating cycle, with a sharper card clothing.
Due to a cogwheel driving mechanism, which is appropriately connected with the pick-up devices, only the possibility exists of adjusting all pick-up devices jointly in such a manner that, after the adjustment, the textile fabric can be napped once again first with a blunt and then, corresponding to the progressing operating cycle, with a shaper card clothing.
SUMMARY
It is an object of the invention to overcome the drawbacks of the prior art. In the wire card napping machine of the present invention, the ratio of one type of napping rollers to another type of napping rollers can be changed by at least one unlocking, adjusting and locking device.
The adjusting device of the present invention has a lifting device that can be operated in a controlled manner. starting position and an operating position, which brings about a pick-up device that is to be rotated in a defined angle, is connected in hinged fashion. disposed firmly at the pick-up device that is to be rotated.
The adjusting device has assigned to it an unlocking device, which second lifting device between a starting position and an operating position, which brings about the unlocking of the pick-up device that is to be rotated through a defined angle. fashion to a locking device disposed at a pick-up device that is to be rotated before the pick-up device in question is rotated to bring about the unlocking.
The advantages achieved by the invention are seen to lie essentially in that the ratio of the one to the other type of napping rollers in the operating position can be changed. This is understood to include also such a ratio, for which the napping rollers of only one type of roller are in the operating position. As a result, other napping effects can be achieved. In this connection, it is also essential that the textile fabric, during the change in the ratio of the one to the other type of napping roller in the operating position, can remain on the cylinder and relatively long retooling times are avoided.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a diagrammatic cross-sectional representation of a cylinder of a wire card napping machine with an equal number of counter-pile rollers and pile rollers in the operating position, as well as two drawing rollers assigned to the cylinder.
FIG. 2 shows a diagrammatic representation of an unlocking, adjusting and locking device, the unlocking process being initiated at a defined pick-up device.
FIG. 3 shows a diagrammatic representation of the unlocking, adjusting and locking device during the adjusting process of the defined pick-up device.
FIG. 4 is a time-lapse plan for unlocking, adjusting and locking a pick-u
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patent: 3175224 (1965-03-01), Bertrand
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Fankhaenel Lothar
Schaedlich Gotthard
Seidel Dieter
Straube Volker
Crowder C. D.
Textilmaschinenbau Aue GmbH
Vanatta Amy B.
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