Device and a process for applying a preparation fluid to an advancing thread

Abstract

A device and process for applying a preparation fluid to an advancing thread or yarn, which includes a housing having a thread inlet opening and an thread outlet opening. A preparation device is provided in the housing for applying a preparation fluid to the advancing thread and for applying a swirling air stream against the advancing thread to cause the fluid to penetrate into the interior of the thread. The housing and the preparation device are both divided so that they may be opened to facilitate the initial thread up of the thread through the housing. Also, the inlet and outlet openings are configured to provide a seal between the advancing yarn and the housing to minimize leakage of the fluid from the housing.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] The present application is a continuation of international application PCT / EP2005 / 051573, filed 8 Apr. 2005, and which designates the U.S. The disclosure of the referenced application is incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] The invention relates to a device and a process for applying a preparation fluid to threads of the type which comprises a housing which includes an inlet opening for a thread, an outlet opening for a thread, and a preparation device disposed in the housing. [0003] There are different known processes and possibilities for applying fluid preparations to a thread, which as used herein includes a yarn. The application is accomplished, for example, by the thread being moistened with oil by being conducted over rollers which rotate through an oil bath. An additional possibility consists in the yarn running over a preparation pin. The pin includes an orifice via which the preparation oil is sup...

AI Technical Summary

Benefits of technology

[0008] The above and other objects and advantages of the present invention are achieved by the provision of a device and process for applying a preparation fluid to threads, and which comprises a housing which comprises an inlet opening for the thread and an outlet opening for the thread. In the housing a preparation device is disposed. According to the invention, the housing is divided at the inlet opening and the outlet opening so that the thread can be laid into the housing without difficulty. By the division of the housing it is avoided that the thread has to be threaded through a small opening of the housing, guided through the housing, and at the end of the housing guided out of the housing once again. This significant expenditure of effort is no longer required with the present invention since the housing is divided in the area of the inlet opening and the outlet opening and can be opened there. When the housing is open, the thread is laid in so as to be transverse to the direction of the run of the thread and the housing is subsequently closed. The thread is thus ready for a preparation, in particular with preparation oil. Through the division of the housing at the inlet opening and the outlet opening the housing can be opened by a pivoting motion or a linear motion in the direction of the run of the thread.

[0009] Along with the easier thread up of the thread into the housing there is, vis-à-vis the state of the art, the further advantage that the housing is essentially closed during the preparation of the thread. On the one hand, sufficient space to let the thread pass through is found only at the inlet opening and the outlet opening. On the other hand however, these openings are so narrow that they have a sealing effect. Hardly any preparation fluid gets out through these openings. Due to this, as is not the case in the state of the art, preparation fluid is spared and moreover the environment of the device is not contaminated.

[0010] In order to avoid contamination of the environment of the device, it is thus particularly advantageous if the division of the housing and / or the inlet opening and the outlet opening are sealed or act as seals. The sealing ensures that the preparation fluid remains within the housing. Due to this, contamination of the environment of the housing is avoided, even though the housing is divided for the simple introduction of the thread into the housing.

Problems solved by technology

Hardly any preparation fluid gets out through these openings.

Images