DE7140539U - Suction device for textile yarn processing machines - Google Patents

Description

899 Lindau (Lake Constance)

James Howorth & Company Limited, Victoria Works, Lome Street, Farnworth, Bolton, County of Lancaster, England

"Suction device for textile yarn processing machines"

This innovation concerns improvements in textile processing machines, in particular a suction device for holding the ends of running yarn.

It has been suggested to pass continuous lengths of yarn to or from converting machines

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054374 by agreement Bayer. Staatsbank Lindau (Bj No. 156?

n- and exchange bank Lindau (Bi No. 27B920

71413391 JM

Postal checking account: Munich 29525

Conveying suction tubes in which the yarn is drawn along the tube by a stream of air and is not in contact with the walls of the tube; however, difficulties have been encountered when it is necessary to change the direction of movement of the yarn. When passing a curvature running in the tube, the yarn comes in contact with the pipe wall, which causes an increase in the resistance m to the yarn, as well as breaking points and an increase in required fan power to propel the yarn through the tube.

The task of the innovation is to reduce the resistance on the yarn and also the required Power to pull the yarn through the tube and balance the suction in the tubes.

The innovation includes tubes for the passage of run-C3n Yarns, with sleeves attached in each tube when the direction of the yarn passing through it changes are.

The innovation is described with reference to the accompanying drawings.

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It shows:

Figure 1 is a sectional plan view of a tube and a sleeve which darstallt the passage of yarn therethrough;

Figure 2 is a plan view of a number of a connection • connecting tube coupled yarn tubes, whereby the

Connecting pipe through a reflux pipe to a Suction pump or blower is connected;

FIG. 3 is a sectional plan view of part of a pipe connected to a connecting pipe;

Figure 4 is a sectional plan view showing running yarn passing from one tube to one parallel so arranged pipe runs;

Figure 5 is a plan view of two substantially parallel Tubes for collecting broken ends or during threading;

Figure 6 is a sectional plan view in the larger Haßstab, which represents a further sleeve shape;

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FIG. 7 is a sectional view taken along line 7-7 of FIG Figure 6.

A sleeve A is at the end or between the ends of a tube B for the passage of a running yarn in Yarn processing machines attached to prevent the yarn from changing the direction of the passing through it Yarn to touch the wall of the pipe. As shown in Figure 1, yarn is taken from a tube B. a coupling machine directed through a bore b of the sleeve A. The end of the tube B is flared outwards and the direction of the air flowing through it tends to pull the sleeve into the tube and thereby a seal between the bore of the tube and the Provide sleeve. A tubular connection C connected to one end formed with a right-angled curvature is, is in the outer end of the sleeve and attached to another (not shown) sleeve to the To straighten yarn in a subsequent tube.

In the arrangement shown in Figs. 2, 3 and 5 for collecting broken yarn ends and yarn ends before threading and when attaching to textile processing machines or running the yarn from a bobbin rack

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one end of a pipe E connected to a suction fan D, as it is arranged, air and running yarn

1 2

sucking through connecting pipes B of pipes B connected to the spool rack or pipes B for broken ends or the like. A sleeve A is fitted in the tubes B, B to guide the yarn into and from the connecting tube. It has been found that by connecting the fan D

the suction in the tubes B is transferred to the tube B. the length of the pipes for collecting broken ends in the is substantially uniform.

Figure 4 illustrates another arrangement for joining the ends of two tubes B.

In a further arrangement with a U-shaped tube B, the sleeve has the shape of a baffle plate A and is provided in the curvature with inclined legs a at an inclination to the direction of flow of the air stream to to direct the current away from the barrel wall of the curve.

In the case of broken yarn ends or before threading into the holes or openings in the suction tube, a Bundling or entangling the yarn in the tube

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occur where the holes or openings are aligned along the length of the tube, and it has been found that bundling or entanglement is reduced by staggering the holes or openings so that one hole or opening is approximately 45 to the adjacent Holes or openings is arranged.

A sleeve A is placed in each hole or opening, to direct the yarn into the tube.

The centralization of the air flow causes the yarn ends, or the running yarn, in the center along the tubes to run to a collecting chamber, with filters being arranged next to the entrance of the fan.

S chut ζ claims

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Claims (5)

Protection claims 1. Suction apparatus for textile yarn processing machines, characterized by tubes (B) through which running yarn or yarn ends are pulled , the air flow being held by sleeves (A) in the center of the tube, which are in the ends of the bore of the tube and between the Ends are arranged when the direction of the pipe changes. 2. Suction apparatus according to claim 1, characterized in that a tube (B) to a Suction fan (D) and a connecting pipe (B) is connected to which another pipe or pipes 2 (B) are connected to the running yarn of one Pull the bobbin rack. 3. Suction apparatus according to claim 1, characterized in that a tube (B) on one Suction fan (D) and a connecting pipe (B) is connected to which another pipe or pipes 714953917.2.72 (B) connected and with holes formed therein to accommodate broken ends or ends during the Cranking up. 4. Suction apparatus according to one of claims 1-3, characterized in that a connection is provided for transferring the yarn ends from a sleeve in a tube to a sleeve in a tube at right angles thereto. 5. Suction apparatus according to claim 1, characterized in that the tube (B) is U-shaped and the sleeve has the shape of a baffle plate (A) which is provided with inclined legs {a) _ , and at the point of change of direction "Hole is attached. 714153817.2.72