US2404838A - Winding machine control - Google Patents

Description

July 30, 1946. J L HALL AL 2,404,838

WINDING MACHINE CONTROL Filed Jan. 7, 1945 INVENTORS' JOHN L. HALL. ANGELO M- SANTOLLA.

x gwum A TTORNE Y5 Patented July 30, 1946 WINDING MACHINE CONTROL John Lee Hall, Narrows, and Angelo M. Santolla,

Pearisburg, Va., assignors to Celanese Corporation of America, a corporation of Delaware Application January 7, 1943, Serial No. 471,536

2 Claims. 1

This invention relates to yarn winding and packaging machines, and relates more particularly to improved means adapted to be applied to a yarn winding and packaging machine for stopping the winding of yarn on to the package when the package has attained a predetermined size.

It is an object of this invention to provide an improved device adapted to be applied to a yarn winding machine for automatically and instantly stopping the winding of the yarn on to the package when the package has attained a predetermined size.

Another object of this invention is to provide, in a yarn winding machine, an improved stopping mechanism, responsive to the size of the package being wound, for halting the winding operation and preventing the building up of the package to a point where the thread guide presses on the outside windings of the package to mar the same.

Other objects of this invention will appear from the following detailed description and drawing.

In yarn winding and packaging devices, as heretofore commonly constructed, it was found necessary to stop the winding machines during lunch periods or change-of-shift periods in order to prevent the production of oversized packages and/or damaged packages caused by th thread guide rubbing against the outside windings of oversized packages. By employing the improved stopping mechanism of the present invention, not only are improved packages of yarn produced, but it is also not necessary for the operator to be present during the winding of the complet package. Since the winding machine runs continuously from the start until the package has reached its predetermined size, a better package is produced than where the machine is stopped, slowed down or the traverse of the yarn is otherwise disturbed during the building of the package. As is well known, a change of speed in the machine during the Winding operation invariably alters the throw of the yarn at each end of the traverse stroke thus effecting the build of the ends of the package.

In accordance with our invention, we construct a package size control gauge for application to a traverse frame dog of a winding machine, said gauge presenting a working face positioned at an angle to the traverse bar, thus permitting the assembly of a winding machine the operation of which is automatically controlled by the size of the package.

A preferred embodiment of our invention is shown in the accompanying drawing wherein like reference numerals refer to the same or similar elements in the respective views.

In the drawing:

Figure 1 is a perspective view of the clutch and Figure 3 is a cross-sectional View taken on the line 3-3 of Figure 2,

Figure 4 is a cross-sectional view taken on the line 44 of Figure 3 and in a direction opposite to that of Figure 2, and

Figure 5 is a detail view of the gauge of our invention showing the striking face.

Referring more particularly to the drawing, the reference numeral I indicates standards on the main frame of a winding machine in which is journaled a main shaft 2 adapted to rotate spindle 2' and the package of yarn 3 being wound supported on said spindle. This main shaft 2 is equipp d with a driving pulley 4 adapted. to be rotated by a belt 5 when said belt is held in contact therewith by idler pulley 6. Idler pulley 6 is journaled inone end of an arm 1 the other end of which rotates on a stud shaft 8 mounted in a bracket 9 that is part of the main frame I. This main shaft 2 also has a brake drum ll attached thereto.

A clutch lever rod l2 extends across the top of the frame I from front to rear. On the rear end of lever rod I2 is a cam face l3, which is adapted to act as the idler pulley arm lifter, while on the front end is a brake lever l4 arcuate in shape. The brake lever l4 carries a brake [5 adapted to cooperate with the brake drum H in operative position. A catch [6 is provided for cooperation with an abutment I! on a lever l8 to maintain the brake in inoperative position out of contact with drum II. The lever [B is part of a traverse frame dog segment 19 that is pivoted to the main frame on a stud shaft 2|.

The winding machine is also equipped with a traverse frame a part of which is indicated by the reference numeral 22. In general, this traverse frame is mounted on the cam shaft bushing, thus being pivoted about the hub 23 and provides a support and guide for the remainder of the traverse mechanism. A guide 24 formed at the top of the traverse frame 22 controls the movement of a traverse bar 25 that has attached thereto a yarn guide supporting rod 26 carrying a yarn guide 21. The traverse bar 25 is reciprocated by its aXis. an angle, obviously this would require a compen- 3 a cam (not shown) to control the path of the yarn on the package being formed, while the whole traverse frame 22 rotates clockwise, as seen in Figure l, as the package is built.

The rotation of main shaft 2, and with it the rotation of spindle 2, is halted by the traverse bar 25 cooperating with a package size control gauge 28 placed in a predetermined position on the extension of traverse frame dog segment I9 and held thereon by a set screw 29. Thus, when package 3 has reached its predetermined size the traverse bar will have been moved to such a position that the point 3| thereof will strike near the middle of face 32 of gauge 28 causing the rotation of lever I8 about stud shaft 2I, which rotation releases brake lever [4. The free brake lever I4 is pulled counter-clockwise by any suitable means, such as a spring or a weight (not shown), thus rotating lever rod I2 to apply brake I5 to drum II, and at the same time causing cam I3 to lift idler pulley 6 from the belt 5 which action effects the removal of the belt from the surface of the drive pulley 4.

By grindin the face 32 of gauge 28 to a certain'contour, no detrimental effects are produced on the package by the striking of traverse bar 25 against gauge 28 to halt the winding operation when the package has reached its predetermined size.

To produce the desired results w have found that the face 32 should have an angle of slope which ranges from 12 degrees vertical and 30 degrees horizontal to-1'7 /2 degrees vertical and 25 degrees horizontal, highly satisfactory results being obtained when the angle of slope of in Figure 5 of the drawing, the horizontal angle which may vary from 25 to 30 being indicated by reference character A and the vertical angle which may vary from l2 /2 to 17 being indicated by reference character B. These angles are conditional upon th point 3I being formed by ending the traverse bar 25 at right angles to If the corner or point 3I is ground to sating change in the angle of slope of the face 32.

The gauge is preferably made of hot rolled steel, case hardened, but may be made of ther types of steel alloys such as tool steel, etc.

4 It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of our invention.

Having described our invention, what we desire to secure by Letters Patent is:

1. In a yarn package winding machine comprising a drive for rotating the package, braking means adapted to stop the rotation of said package, a traverse bar having a square end and yarn guide for traversing the yarn on said package, and means including a traverse frame dog segment for holding said braking means in inoperative position, a gauge mounted on said traverse frame dog segment for cooperating with sai traverse bar to throw said braking into operativ position to halt th winding operation when sai package has reached a predetermined size, said gauge comprising a member having a beveled edge cut away at one end thereof to form a striking face for coming into contact with one corner at the end of said traverse bar, the striking face being in a single plane sloping from 12 degrees vertical and 30 degrees horizontal to 17 degrees vertical and 25 degrees horizontal and being at an angle to the plane of said beveled edge.

2. In a yarn package winding machine comprising a drive for rotating the package, braking means adapted to stop the rotation of said package, a traverse bar having a square end and yarn guide for traversing the yarn on said package, and means including a traverse frame dog segment for holding said braking means in inoperative position, a gauge mounted on said traverse frame dog segment for cooperating with said traverse bar to throw said braking into operative position to halt th winding operation when said package has reached a predetermined size, said gauge comprising a member having a beveled edge cut away at one end thereof to form a striking face for coming into contact with one corner at the end of said traverse bar, the striking face being in a Single plane sloping 17 degrees vertical and 27 /2 degrees horizontal and being at an angle to the plane of said beveled edge.

JOHN LEE HALL. ANGELO M. SAN TOLLA.

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