US1343791A - Sheet-guide for folding-machines - Google Patents

Description

E. SCHEICK.

S HEET GUIDE FOR FOLDING MACHINES.

APPLICATION FILED DEC. I6. 1919.

PatentedJune 15,1920.

I W/TiJESSES ,4

,4 TTORNEYS UNITED STATES PATENT OFFICE.

EDWARD scHEIcK, 'oE ARLINGTON, NEW JERSEY.

SHEET-GUIDE FOR FOLDING-MACHINES.

Specification of Letters Patent. P te t d J 11119 15, 1920.

Application filed December 16, 1919. Serial in. 345,359.

tively longand narrow strips of paper, or

other materiahto the folding rolls, on what is known as the Cleveland folding machine, but it is understood that it is adapted for use in other machines employing a sheet feed mechanism, and where an accurate fold 'is desired. a

It is to be understood that no claim is'here made broadly to ameans of feeding generally paper to a folding mechanism because such devices have heretofore been employed. However in the feeding devices. heretofore used, the operation" of the same have been unsatisfactory for example in feeding relatively long and narrow strips tothe folding mechanism. There has been a tendency for the paper to tilt, as it is being fed, so that when it reaches for example the first pair of rollers of the folding mechanism,-the strip is fed thereto at an-angle, so that it isnot properly folded.

One of. he objects of this invention is to provide animproved feed device which will overcome the difliculties above noted, and which will permit relatively long and narrow, strips of paper or the like, tobe fed to a folding mechanism so that the said. strip will receive an accurate fold.

A further object ofthisinvention is to provide in a sheet folding device employing a feed means including feed rolls,and a sheet guide for one edge of the sheet, a means which will enable relatively long and nar-' row strips to be accurately fed to a folding mechanism, the last named means including-a device for holding the other edge of the strip in spaced relationfrom the feed rolls, .andproviding a frictional drag on said edge; I a Stilla further object of this invention is to provide aimeans adjustable to different widths, for effecting an adjustable friction dragupon a longitudinally extending portion of theunder surface of the strip.

. Generally, the above objects are accomincorrect folding of strips.

plished by providing a longitudinally extending friction bar preferably having a relatively smooth surface, and a means for adjusting the bar laterally of the table, and

-hol'ding the same spaced above the table whereby a friction drag may be exerted upon the under surface atone side of the-strip as it is fed to the folding mechanism.

Other objects and advantages will be apparent from the accompanying drawings showing for example a practical embodiment of the invention, and from the following description and the appended claims.

In the accompanying drawingsforming a part of this, specification, similar characters of reference deslgnatecorresponding parts in the several views.

Figure 1 is a .top plan View showing a paper feed mechanism embodying the invention. y I

Fig. 2 is a sectionalview looking in the direction of the arrowsandtaken generally on the line2-2 of Fig. 1, showing the manner inWhich one side of the strip is held on the friction bar in spaced relation to the paper feeding means. I

Fig... 3 is an enlarged perspective view of the attachment.

. Fig. 4 is a sectional view looking inthe direction of the arrows and taken generally on thelines 4:4= of .Fig. 1.

Fig. 5 is a view showing the correct and With reference to the accompanying drawings, the invention is shown applied to the feeding device of what is known as tain an accurate fold for a relatively long and narrow strip of paper and the like. The

mechanism for feeding a relatively, longand narrow strip 1, is shown as comprislng a feed table having a plurality of spaced feed rolls 2 rotatably mounted on said table, and

driven belt 3 being arranged to contact-with the'surface of the said rolls to drive the same. 'A plurality of spaced bars 4 are arrangedbetween the spaced feed rolls 2, the upper face of the bars being slightly below the outer surface of the rollers, so'that as the strip 1' is placed thereon, thesaid strip will he fed or carried in-the direction indicated by the" arrow, to the folding roll 5 of being angularly disposed thereon,as shown n Fig. 1,a sultable means such as a power the folding mechanism now shown. A side feed guide 6 is arranged at one side of the feed table, to function as a guide for one side edge of the strip 1 as the strip is fed along the table. In order to form an accu rately folded sheet such as represented at A Fig. 5, the strip 1 should be fed to the roll 5, so that the axis of the strip is normal to the axis of the roll. In practice, it has been found that in feediiig' relatively long and narrow strips to the folding mecha nism, there is a tendency for the strip to tilt in a manner represented in Fig. 1 by the strip '7, so that the strip is fed to the roll 5 of the folding mechanism, at an angle, resulting; in an impro fold by the folding mechanism, an exam )le for instance of which is shown at B in 1 lg 5.

It has been found that by providing a means for exerting a friction drag upon the under surface of the strip, that it is possible to feed a relatively long and narrow strip to the'folding mechanism so that the of the strip 1, is normal to that of the roll 5, one side edge 8 of the strip being in contact with the side guide 6. In order toeffect a friction drag upon a longitudinally extending portion 9 of the bottom or under surface of the strip 1, a friction drag bar 10 having preferably relatively smooth surface is provided together with spacing members 11 adjustable on the bar for holding the said bar spaced above the table, the said spacing members in the form shown comprising a head portion 12 adapted to rest upon the bars d, and a stem portion 13- extending through a slot 1% formed in the bar 10-, a suitable spring clip 15 being connected with the stem in or ler to adjust the spacing members 11 longitudinally of the bar 10. It is to be understood however that any suitable spacing means may be provided. As a means of adjusting the friction bar 10 laterally of the feed table for strips of different widths, and as a means of varying the width of the strip 1 overlying the friction bar 10 to vary the friction, arms 16-17 are provided one end of each.- of said arms being suitably connected to the friction bar 10', the other end thereof being supported by the feed table 18" by an adjustable connection which permits adjustment of the friction bar 10, laterally of the table. In the form shown, the arms are provided with a slot 19, a spacing block 20 being provided to' hold the arms in spaced relation to the table, a bolt 21 being provided which extends through a table and the slot of. the arm, a wing nut 22'being threaded upon the bolt- 2'1 to hold the arm in fixed adjusted position. It is to be understood however that any other suitable adjusting means may be provided.

It is to be noted that when the friction bar 10 is adjusted laterally of the table either to vary the width of the overlying edge of the strip, or to set the bar for strips of different width, that by reason of the angularly arranged bars and rollers, it may be necessary to move the spacing members 11 longitudinally of the bar 10 so that they may rest upon the bars 4:. In operation, the friction drag attachment is adjusted laterally of the feed table so when one side 8 of the strip is in contact with the side guide 6, a certain portion of the other side 23 will overlie the friction bar 10. As the angularly arranged rollers 2 are rotated, thestrip 1 is fed toward the folding mechanism, and brings the edge 8 of the strip 1 in contact with the side guide 6, and the strip is prevented from tilting by reason of the friction drag exerted upon the under surface by the friction bar 10. 7

While one practical embodiment of the invention has been shown it is to be understood that certain changes and i'nodificat'ions may be made without departing from the spirit and scope of this invention.

. Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 11. A paper feed mechanism including power driven rollers therefor, a side guide adapted to" guide one edge'of a strip of paper, and a friction bar having a relatively smooth surface spaced above said rollers and extending longitudinally of the feed table for holding one edge of the strip spaced from the rollers throughout the travel thereof, whereby a friction drag is exerted upon one edge of the strip to prevent the said strip from being fed at an angle to said feed table,rand means for adjusting said friction bar laterally of the feed table.

2. In a device of the characterdescr'ibed a friction bar adapted to hold one edge of a strip of paperin spaced relation to a feed mechanism, rotatab'l'y mounted on a feed table, the said bar having a'plur'ality of arms extending laterally of the table, andmeans connecting said arms with the table for obtaining adjustment of such friction bar laterally of the table.

3. In a device of the character described including in combination a feed table having spaced bars angularly arranged thereon, power driven feed rolls arranged between adjacent bars, a feed side guide adapted to guide'one side of a strip of paper longitudinally of the table, folding mechanism at one end of the table, and a means spaced above the table and extending longitudinally thereof spaced from the side guide, the said means being adapted to hold the other edge of the strip spaced from said feed rollers mechanism which consists in providing a feed table including a plurality of spaced bars, power driven feed rollers arranged be tween said bars, the said bars and said roll-- ers being angularly arranged relative to the table, a feed side guide arranged at one side of the table to function as a guide for one edge of a strip, and a means for effecting a friction drag upon a portion of the under side of the strip on the edge opposite the registered edge throughout the travel of the strip longitudinally of the table.

5. A paper feed device for a Cleveland folding machine adapted to feed relatively long and narrow strips to the folding Inechanism the said feeding device including spaced rollers angularly arranged upon a feed table, a side feed guide at one side of the table to act as a guide for one side of a strip, and a stationary means adjustable to effect a friction drag upon a longitudinally extending portion of the under side of the strip at the edge opposite to the registered edge. 1

6. A paper feed device for a Cleveland folding'machine adapted to feed relatively long and narrow strips to the folding mechanism, the said feeding device including tered edge, the said means including a friction bar having a relatively smooth surface extending longitudinally of the table, means adjustable on said bar for supporting the bar in spaced relation to the table, and

means for. adjusting the said friction bar laterally of the table.

EDWARD SOHEICK.

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