US2172037A

US2172037A - Wire-weaving machine

Info

Publication number: US2172037A
Application number: US123047A
Authority: US
Inventors: Frank F Schmiege
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-01-29
Filing date: 1937-01-29
Publication date: 1939-09-05
Anticipated expiration: 1956-09-05

Description

Sept. 5, 19,39.

F. F. SCHMIEGE WIRE-WEAVING MACHINE Filed Jan. 29-, 1937 Patented Sept. 5, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to wire weaving machines, and more particularly to improved means for winding the wire cloth on rolls after the weaving operation has been completed.

In the manufacture of wire cloth, for example the cloth used on Fourdrinier machines, it is necessary that the finished cloth be very smooth. Substantial difficulty has been encountered in providing a uniformly smooth cloth with the machines employed for weaving the cloth and then winding the finished cloth on rolls.

In most wire weaving machines, the wire cloth, after the weaving operation is completed, is passed around a breast beam and then wound ona cloth roll while the cloth is held under'substantial tension. At the point where the woven cloth initially contacts with the cloth previously wound on the roll, the knuckles of the cloth on the roll contact with the incoming cloth, thus causing the latter to climb the knuckles of the previously wound cloth. This action causes one orbothof the edge portions of the cloth to move laterally inwardly and results in the longitudinal wrinkling or puckering of the cloth. These wrinkles or puckers may continue to form for a fewinches of the length of the cloth and very often extend through several feet, the action referred to continuing until the tension on the cloth is released and the woven wire again spread out.

An important object of the present invention is to provide a device for preventing the wrinkling or puckering of wire cloth under the conditions referred to.

A further object is to provide a novel device engageable between the cloth on a roll and the strip of incoming cloth about to be wound on the roll, to cause the incoming cloth to be. wound perfectly fiat on the roll without the formation of puckers or wrinkles.

A further object is to provide a novel device of extremely simple construction comprising 1 a plate of resilient smooth material such as polished spring steel, arranged to engage beneath the incoming cloth at the point where it normally initially contacts with the cloth roll to prevent the knuckles of the wound cloth from destroying the smooth continuity of the incoming cloth.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the drawing I have shown one embodiment of the invention. In this showing:

Figure 1 is a vertical sectional view of the front portion of a wire weaving loom,

Figure 2 is a fragmentary end elevation of the same, and,

Figure 3 is a fragmentary perspective view of the resilient plate forming the principal subject matter of the present invention. 5

Referring to Figure 1, the numeral I0 designates the main frame as a Whole of a conventional wire weaving loom having side frame members I I between which is mounted a conventional breast beam I2. The side frame members also support a rotatable shaft I3. The woven wire cloth is indicated by the numeral I 4, and in accordance with conventional practice, the cloth, whilebeing held under tension, passes around the breast beam I2 and then around a roll I5 supported on the shaft I3. As is well known the roll I5 is advanced automatically by a suitable step. by step movement to wind the cloth on the roll a distance equal to the distance between each adjacent pair of-shutevwires, as each successive shute wire is driven into position in the weaving operation.

The cloth passing around the breast beam I2 initially contacts with the roll along a line which has been indicated in Figure 1 by the numeral I6. This line, of course, will be the line at which the plane of the cloth between the breast beam. and the winding roll is tangent to the roll I5, or the successive turns of cloththereon. The difficulty now experienced in producing smooth woven wire cloth is due to the action which occurs along the line IS, the knuckles of the wound cloth causing lateral displacement of portions of the incoming wire and creating the highly undesirable puckers or wrinkles in the cloth.

The present invention provides means for preventing the knuckles of the wound cloth from causing'any portions of the incoming cloth from climbing the knuckles of the wound cloth along the line I6. A resilient plate I1, preferably formed of polished spring steel, is supported in the position shown in Figure 1, the inner edge I8 of the plate extending approximately one inch beyond the line I6. Accordingly it will be apparent that the. incoming wire is supported adjacent the line I6 around the perfectly smooth surface of the plate I I, the resiliency of this plate between the line I6 and the inner edge I3 of the plate permitting the plate to flex downwardly to generally coincide with the shape of the roll I5 or the successive turns of cloth thereon.

The forward or outer edge portion of the plate I! is riveted or otherwise secured as at I9 to a plurality of holding members 20, preferably in the form of flat shanks. The members 20 may be spaced apart any suitable distance and in practice it has been found that they preferably should be spaced apart approximately eighteen inches. The free ends of the members 20 are respectively receivable in slots 2i formed in the inner ends of supporting bolts 22. When the parts are thus assembled, connecting pins 23 are adapted to be inserted in registering openings 24 and 25 formed respectively in the members 20 and bolts 22.

The forward ends of the bolts 22 are threaded and extend through a suitable brace member 26 extending transversely of the machine. The brace 26 may be formed of angle section as shown in Figure 1, and the threaded ends of the bolts 22 extend through suitable openings in the depending portion of the brace 26. Each bolt 22 is preferably provided with an adjusting nut 21 and a jamb nut 28 for holding the adjusting nut against turning, as will be apparent. The brace 25 may be secured at its ends to the side framemembers by means of suitable brackets 29, and one or more posts 36 may be employed for rigidly supporting the brace 26intermediate its ends. Rods 3E and turnbuckles 32 may be employed for rigidly fixing the brace 26 against inward movement incident to the pull exerted on the plate H in a manner to be described.

The operation of the device is asfollows:

The cloth is woven in the loom in the usual manner, the cloth advancing upon the driving of each shute wire into position. Thecloth I l passes around the breast beam l2 and then inwardly to be wound upon the roll IS, the wire being maintained under tension in the usual manner. In the absence of the plate ll, the highlyundesirable wrinkling or puckering of the cloth would occur, as in the usual practice.

With the present invention, the inner end of the plate ET? is arranged between the roll l5 and the incoming cloth and preferably has its inner edge I8 extending approximately one inch beyond the line it. The distance that the plate extends beyond the line It is not critical, and satisfactory results can be obtained if'the edge 18 extends somewhat more or less than an inch beyond the line IS. A projection of one inch is preferred, for the reason that it provides perfect results and for the additional reason that the extension of the edge I8 further inwardly results in the transmission of excessive pull on the plate ll incident to the frictional grip exerted upon opposite faces of this plate adjacent the inner end thereof when the winding operation is taking place.

The plate I! is preferably formed of thin, polished spring steel, and while the thickness of the plate is not critical, it has been found that excellent results are obtained with a plate of about .015 inch thickness. When a suitable plate is employed and is projected beyond the point 16 in the manner stated, the hardness of the plate and the polishing of the surfaces thereof permits the wire cloth to slide freely over the end of the plate without being injured in any way, the

plate serving to maintain the incoming cloth perfectly fiat from edge to edge. Beyond the plate ll, there is no tendency for the cloth to contract laterally and thus pucker or wrinkle, and accordingly the functioning of the plate perfectly prevents the winding of defective Wire cloth.

The pins 23 loosely connect the shanks 20 to the bolts 22, and the bolts are loosely mounted in the brace 26, the nuts 21 merely limiting the inward movement of the bolts, and consequently of the plate [1. Thus the plate i1 is free to move at least to a certain extent in every direction except in the direction of movement of the cloth as it is wound upon the roll. This mounting of the plate provides for a perfectly free and uniform feeding of the wire cloth to the roll l5. The pins 23 are removed upon the complete winding of each roll of the cloth to permit the removal of the plate IT. The plate is replaced for the winding of the next roll, and the initial winding operation will draw the plate inwardly to its proper limit of movement as defined by the position of the adjusting nuts 21. As previously stated, the uses to which most wire cloth is put require that the cloth be perfectly fiat, and this is particularly true in Fourdrinier machines. The making of uniformly flat wire cloth has been found impossible with ordinary loom constructions for the reason that the incoming cloth climbs the knuckles of the previous turns of cloth wound upon the roll. The present invention provides an extremely simple and effective means for preventing the wrinkling and puckering of the cloth, thus permitting the making of a wire cloth which is uniformly perfectly fiat.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

I claim:

The combination with a wire cloth weaving loom having a breast beam and a cloth receiving roll to which the cloth from said breast beam passes tangentially, of a thin, smooth, hard, nonstretchable plate arranged in the angle between the roll and the cloth moving thereto, the inner edge portion of said plate only slightly extending across the line at which the cloth moving to the roll is tangent thereto, the inner extremity of said plate being substantially parallel to such line, a transverse brace rigidly connected to the frame of the loom, and means for loosely connecting said plate to said brace, said means being operative for limiting the movement of said plate in the direction of movement of the cloth toward said roll, and for providingiimited movement of said plate at right angles to said direction.

FRANK F. SCHMIEGE.