US1862387A - Machine for making fiber reed - Google Patents

Description

June 7, 1932 G. E. NORDSTROM E'r AL 1,862,387

MACHINE FOR MAKING FIBER REED l Filed April 27, 1928 6 SheetS-Sheet l June 7, 1932. G. NORDSTROM ET AL MACHINE FOR MAKING FIBER REED Filed April 27, 1928 6 Sheets-Sheet 2 w I Wm" N w Qfd |||,s,| Q 's' iq o N m f" if: -z

`lune 7, 1932.

G. E. NORDSTROM ET AL MACHINE FOR MAKING FIBER REED Filed April 27, 1928l 6 Sheets'-Sheet 3 June 7, 1932- G. E. NORDSTROM ET AL 1,362,387

MACHINE FOR MAKING FIBER REED Filed April 2v, 1928 s sneetsneet 4 June 7, 1932. G. E. NORDSTROM ET AL 1,852,387

MACHINE FOR MAKING FIBER REED Filed April 27, 1928 6 Sheets-Sheet 5 June 7, 1932- G. E. NORDSTROM ET Al. 1,862,387

MACHINE FOR MAKING FIBER REED Filed April 27, 1928 6 Sheets-Sheet 6 Patented June 7, 1932 UNITED STATES PATENT OFFICE GUSTAF E. NORDSTROM AND JOHN E. MILLETT, OF GARDNER, MASSACHUSETTS, AS-

SIGNOBS TO AMERICAN FIBRE CORPORATION, 0F GARDNER, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS MACHINE FOR MAKING FIBER REED Application led April 27,

'tion than has been heretofore customary.

In particular, we omit the preliminary foldin and unfolding of the strip of material be ore the gumming operation, and substitute therefor a simple creasing operation, which leaves the strip of paper in substantially flat condition, suitable for gumming or gluing Without unfolding.

Important features of our invention relates to the provision of an improved creasing mechanism and to the provision of an improved and simplified folding device.

Our invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a partial side elevation of our improved machine;

Fig. 2 is a detail plan View, looking in the direction of the arrow 2 in Fig. 1;

Fig. 3 is a detail sectional view, taken along the line 3 3 of Fig. 1;

Fig. 4 is a partial side elevation of the right hand orwinding end of our improved machine;

Fig. 5 is a plan view of certain driving mechanism, looking in the direction of the arrow 5 in Fig. 4;

Fi 5 is a sectional side elevation of parts of said driving mechanism.

Fig. 6 is a detail elevation of certain parts, looking in the direction ofthe arrow 6 in Fig. 4;

ig, 7 is a side elevation of the driving 1928. Serial No. 273,413.

mechanism for the pressing rolls and winding reels;

F ig. 8 is a plan view of the creasing mechamsm;

Fig. 9 is a sectional end elevation thereof, taken along the line 9 9 of Fig. 8;

Fig. 10 is an enlarged plan view of one of the paper guides;

Fig. 11 is a sectional elevation thereof, taken along the line 11-11 in Fig. 10;

Fig. 12 is an enlarged view, partly iii section, showing the operation of the creasing mechanism;

Fig. 13 is a plan view of a short portion of the creased paper strip;

Fig. 14: is a sectional View thereof, taken yalong the line 14--14 in Fi 13;

Fig. 15 is a plan view o the gumming or gluing mechanism;

Fi 16 is a sectional side elevation thereof, ta en along the line 16--16 in Fig. 15;

Fig. 17 is a. sectional end elevation thereof, taken along the line 17-17 in Fig. 15;

Fig. 18 is a plan View of the folding and pressing mechanism, with the presser rolls omitted;

Fig. 19 is a detail side elevation of the driving mechanism for the lower presser roll, looking in the direction of the arrow 19 in Fig: 18;

ig. 20 is an enlarged sectional side elevation of portions of the folding and pressing mechanism;

Fig. 21 is an enlarged plan view of one of the folding devices;

Fig. 22 is a side elevation thereof; and

Figs. 23 and 24 are transverse sectional elevations, taken alon the line 28--23 in Fig. 22 and 24-24 in ig. 21 respectively.

Referring to the drawings, our improved fiber reed machine comprises a feed or supply mechanism A, a creasing mechanism B, a gumming or gluing mechanism C Fig. 1), a folding and pressing mechanism (Fig. 4), and a winding mechanism E. A narrow strip of strong paper or similar material is drawn from the supply mechanism A through the creasing mechanism B, after which it is coated with gum or glue in the mechanism C, is folded to accurate width and thereafter pressed by the mechanism D and is wound on a suitable spool or reel by the mechanism E. The operation is continuous and may be performed ra idly and economically.

The mac ine distin uishes in method of operation from the mac ine shown in the patent of.Baldwin and Wood No. 1,680,358, issued August 14, 1928, by substituting for the preliminary folding and unfolding mechanism a creasing mecha-nism which marks the lines of fold in the paper stri but receives and delivers the material in su stantially flat condition suitable for immediate coating by the gluing mechanism.

Thedifferent parts of Athe machine will now be described in their order of operation.

Supply mechanism l The strips of paper S from which the liber reed is manufactured are supplied to the machine in the form of large narrow rolls 30 (Figs. 1 and 2), a plurality of which are mounted side b side in a supporting frame or casing 31. ach roll is su ported by a separate shaft or member 32 `ig. 3), rotatable in open sided bearings 33 in the frame or casing 31 or mounted on the intermediate partitions thereof. With this construction, any roll 30 may be readily removed and replaced without disturbing the other rolls in the casing 31. It will be noted that each roll rotates independently of all of the other rolls and may be started or stopped without reference thereto.

Ureasz'ng mecha/naam,

The creasing mechanism B is designed to receive the fiat liber strip and to mark or score the lines of fold in the liber strip as it is drawn therethrough. The creasing mechanism is best shown in Figs. 8 to 14 and comprises three creasing units driven by parallel lower shafts 40, 41 and 42. Each creasing unit acts on two adjacent strips of paper and may be started or stopped independently,as will be hereinafter described.

As each strip of paper S approaches one of the creasing units, it is drawn through a guide, preferably comprising a block 45 (Fig. 11) having a groove or recess 46 at its upper surface covered by a plate 47. One of these guides 45 is provided for each of the several paper strips, the groove 46 being of substantially the width of the paper strip.

Each creasing unit comprises a pair of rolls 48 and 49 (Figs. 9 and 12). Each lower roll 48 is mounted on one of the driven shafts 40, 41 or 42, previously described. Each upper roll 49 is mounted on a shaft 50 connected by ears 51 and 52 to the corresponding lower riven shaft 40, 41 or 42.

Each upper roll 49 is provided with a pair of preferably rectan ular grooves 54, adapted to loosely receive anges or ribs 55 on the lower rolls 48. The operative relation of 1,sea,se7

the ribs 55 and grooves 54 is best seen in Fig. 12, and the e'ect on a paper stri drawn between these rolls is illustrated in i s. 13 and 14, from which it will appear that t e middle ortion of the strip is dlsplaced upwardly by orming parallel creases or bends in the paper strip, but without offsetting the material suiiiciently from its original plane to prevent satisfactory gluing or gumming thereof.

The creasing of the entire number of paper strips might be done b a single pair of creasing rolls, but the pro uction of the machine is materially increased by providing separate rolls for every pair of strips, thus ermitting the reater portion of the mac ine to continue 1n operation while a sin le pair of rolls is stopped for repair or rep enishment of a paper strip.

the paper strips approach the creasing rolls, they are accurately guided and positioned by the guide blocks 45, so that the creases in the paper strips are formed in accurately located positions, suitable for producing a fiber reed of the desired width.

Gamm/ng or gluingmeclzam'sm As the paper strips S leave the creasing mechanism they enter the gumming or gluing mechanism which will now be described and is best shown in Figs. 15 to 17.

The gluing mechanism comprises a tank or pan mounted on a suitable support and as the surface of the drum moves out of the tank 60.

' The paper strips S are drawn over the drum 62 and are depressed by guide members 65, so that they will be in close contact with the drum as they pass thercover. The driving mechanism is so arranged that the surface of the drum travels somewhat faster than the paper strips, thus providing a wiping action by which the paper is thoroughly and effectively coated with gum or glue. A second scraper 66 is provided for removing surplus glue from the paper strips as they leave the gumming mechanism C.

Lifting devices are provided, one for each pair of paper strips S. Each lifting device comprises a U-shaped wire 69 mounted in a cross shaft 70 supported in suitable bearings 71 and each having a handle 72. Any one of these handles may be actuated to swing its wine 69 under the two associated paper strips S, thus raising the strips high enough so that they will not be engaged by the surface of the drum 62. It is desirable to thus raise and support the paper strips whenever the operation of the machine 1s interrupted or discontinued.

The glue tank 60 is preferably provided with an extension 74 (Pi 15) from which the glue may be drawn o through a pipe 75 by opening a valve 76 as desired.

Folding and pressing mechanism The folding and pressing mechanism is best shown in Figs. 18 to 24. Each folding device comprises a plate 80 having a first folding member 81 and a second folding member 82 successively mounted thereon. Y As the paper strip S leaves the gluing mechanism and approaches the folding mechanism, it is given a half turn to bring the gummed surface to the upper side as it approaches the folding mechanism. (lne edge of the paper strip engages a guide pin 83 and the other edge is engaged and turned about one of the lines of crease by undercut part of the folding member 81, the outline of which is best shown in Fig. 23. The paper at this point occupies substantially the position indicated in said Fig. 23, With one fold of the paper partially completed. The half-turn of the paper facilitates this first folding operation.

The paper then approaches the second folding operation and presents the paper strip in position for the second or final fold, the parts being then in the position indicated in Fig. 24. As the strips leave the second folding member 82, it is positioned by a guide nin 86 and is drawn out in closely folded condition through a relatively narrow opening 87.

It will be noted that there are no moving parts in my improved folding mechanism and that all parts are readily accessible for cleaning. As the paper leaves the second folding member 82 through the opening 87 each gummed and folded strip is received between a grooved driven roll 90 and a narrow springpressed roll 91, the latter roll serving to force the folded strip into one of the grooves of the member 90 and applying pressure to the strip to complete the permanently folded form thereof.

It will be noted that pressure is applied only at the time the strip is in the groove of the lower roll 90, and that the pressure applied at this point causes the gummed strip to Hatten out and fill the groove, thus providing a product of accurate and uniform width.

Str1pper plates 93 are provided to detach the strips S from the roll 90, if the paper should adhere thereto. Reference to Fig. 18 will show that a single driving rollv 90 is provided, having a plurality of grooves 94 spaced axially along the surface of the roll, while a separate folding member is provided for each paper stri The roll 90is mounted on a driving shaft 95, rotated at predetermined speed by driving mechanism to be descrlbed. i

Winding mechanism The paper strips, after being glued, folded and pressed, are delivered to the winding mechanism E which comprises spools or reels 100, mounted on upright shafts 101 and frictionally driven thereby, the shafts rotating at speeds in excess of the desired speed of the drums or reels.

Guide members 102 are mounted on a traverse bar 103, which is provided with a rack 104 engaged by a pinion 105 on a shaft 106 having a mangle gear 107 (Fig. 5) mounted thereon. The gear 107 is rotated alternately in opposite directions by a pinion 108 on a shaft 109 having a worm wheel 110 at its opposite end, engaged and rotated by a worm 111. Driving connections for the worm wheel 111 will be hereinafter described.

As the worm rotates, the shaft 109 also rotates, causing alternate rotational movements of the mangle gear 107 and pinion 105 which engages the rack 104. The traverse bar 103 is thus raised and lowered adjacent the surface of the drums or reels 100. The winding mechanism itself forms no part of our present invention and for a more com lete description thereof, reference is ma e to the patent of Baldwin and Wood above referred to.

Dm'fv/ng mechanism We will now briefly describe the driving mechanism and connections by which the severa-l parts of our improved machine are caused to o eratein desired relation.

A motor (Fig. 1) is mounted in the base of the machine and is provided with a pinion 120 engaging a gear 121 (Fig. 4) on a. main drive shaft 122. Three pulleys 124, 125 and 126 are loosely mounted on the main shaft 122 and are provided with clutches 127 controlled by handles 128, 129 and 130 respective y.

The pulley 124 is connected by a. belt 131 to a pulley 132 on a shaft 133 which is thus rotated in unison with the shaft 122 when the handle 128 is moved to throw in the corresponding clutch 127.

The pulley 125 is correspondingly connected by a belt 134 to a pulley 135 to a second shaft 136, and the pulley 126 is connected by a belt 137 and pulley 138 to a third shaft 139.

The shaft 133 (Fig. 7) is connected bv bevel gears 140 to an upright shaft 141 which in turn is connected by bevel gears 142 (Figs. 8 and 9) to the lower creasing roll shaft 42. The shaft 136 is similarly connected by bevel gears 143, upright shaft 144 and bevel gears 145 to the lower creasing roll shaft 41 (Fig. 1), and the third shaft 139 is connected b v bevel gears 146, upright shaft 147 and bevel gears 148 to the lower creasing roll shaft 40 (Fig. 1).

The shaft 133 (Fig. 7) is also provided with bevel gears 150, engaging corresponding bevel gears 151 atthe lower ends of two of the windin shafts 101 previously described. It-will In: noted that the shaft 133 is shown cut away in Fig. 7 and that only one of the winding connections is shown. Bevel gears 190 (Fig. 4) connect the main shaft 122 with the shaft 191 on which the worm 111 is mounted and thus provide a drive for the traverse mechanism.

The shaft 136 is connected by geears 152 to ashaft 153 having bevels 154 engaging bevels 155 on the lower ends of other corresponding winding shafts 101. The shaft 139 is connected by s rockets 157 and a. chain 158 to a shaft 159 havmg bevel gears 160 engaging similar gears 161 at the lower ends of a third pair of winding shafts 101.

With these connections, it will be seen that any desired pair of creasing rolls may be separately started or stopped and it is thus possible to stop operations on one pair of paper strips While the machine continues to operate on the remaining pairs of strips, thus largely increasing the output.

It is not found necessary to sub-divide the pressing roll 90, as each of the upper presser rolls 91 is pressed downward by al spring 165 (Fig. 6) and the support 166 for each roll is provided with a throw-ofi' handle 167 by which it may be lifted and held out of contact with the presser roll when so desired.

The shaft 95 of the presser roll 90 (Figs. 18 and 19) is connected by bevel gears 170 and 171 to an intermediate shaft 172 (Fig. 4) which in turn is connected by bevel gears 173 to the-main shaft 122 by which the presser roll is thus continuously rotated.

A separate motor R (Fig. 1) is provided for driving the gumming or gluing drum 62.

.The motor R is connected by a belt 180 (Fig. 15) to a pulley 181 on an intermediate shaft 182 having a small pulley 183 connected by a second belt 184 to a large pulley 185 on the shaft which supports the drum 62. The drum is thus continuously rotated at a speed much less than that of the motor R but providing a surface speed greater than the rate of travel of the strips S, as previously described.

Having described the construction of my improved machine, the method of operation will be apparent. After the machine is threaded up, the operater moves the handles 128, 129 and 130 to start the different sec- .tions of the machine and the paper strips are then drawn continuously through the machine, being first creased but left in relatively flat conditon and being thereafter glued, inverted, folded, pressed, andA finally being wound up on the reels 100.

Should one of the strips break, it is not necessary to stop the whole machine, but is merely necessary to release the clutch 127 corresponding to the pair of strips which includes the broken strip. The remaining parts of the machine continue in operation as usual while re airs are being made on the broken strip.- uring the repairs, the corresponding throw offI handles 167 (Fig. 4) will be swung up to lift the upper presser rolls awa from the lower and driven presser roll.

Hiiving thus made clear the construction and operation of our improved machine, we do not wish to be limited to the details herein disclosed otherwise than set forth in the claims, but what we claim is 1. In a fiber reed machine, having means to supply a fiber strip, means to prepare said strip for subsequent gluing and folding, the combination with a folding device comprising an undercut stationary member effective to form a first fold in a lued fiber strip, and a second stationary mem er spaced longitudinally from said first member and effective to form a second fold in said fiber strip, said second folding member having a guide finger depending therefrom and effective to close the first fold as it approaches folding position in said second member.

2. In a fiber reed machine, a plurality of scoring rolls mounted in pairs on adjacent shafts, each pair of rolls being effective to score two parallel strips of fiber, and means to start and stop each pair of rolls independently of the other rolls.

3. In a fiber reed machine, means to supply a plurality of fiber strips to said machine, scoring devices, gluing mechanism, folding and pressing mechanism, and devices to wind said strips, said gluing, folding and pressing mechanisms being operated continuously, means to drive said scoring devices and said Winding devices in associated sections, and means to start and stop each associated section independently.

4. In a fiber reed machine, means to supply a plurality of fiber strips, a scoring device for each pair of strips, means to start and stop each scoring device independently, a gluing drum, means to rotate said drum. and se arate means to raise each pair of strips fiom said drum when the corresponding scoring device is stopped.

5. In 'a fiber reed machine, the combination of a pluralit effective respective y to supply a fiber strip, to score said strip, to apply adhesive to a surface of said strip, t0 fold said strip into several plies, to press said plies together, and to wind up the resultant laminated stri said scoring station comprising a pair of agjacent rollers between which the strip passes, one of said rollers being grooved and the other of said rollers being provided with a mating tongue in said groove whereby the strip is provided with an indented portion of substantial width providing a longitudinally disposed fold line of broken down fibers at each side of the indentation.

of consecutive stations l 6. In a liber reed machine, the combination of a pluralit of consecutive stations effective respective y to supply a fiber strip, to score said strip, to appl adhesive to a surface of said strip, to fol said strip into several plies, to press said plies together, and to wind up the resultant laminated strip, means to operate the scoring devices and the winding devices in associated sections, and means to start and stop each associated section independently.

7. In a fiber reed machine, means to apply glue to the underside of a strip of `fiber and means to form a three-ply folded reed therefrom, said folding means comprising members positioned to receive the strip in, inverted position after application of the glue thereto and shaped to fold marginal portions of the strip downwardly and inwardly upon a central portion of the stri with the glued surface of the strip inturne 8. In a fiber reed machine, the combination of a plurality of consecutive mechanisms effective to treat a strip of fiber comprising means to feed a flat strip of fiber through said machine, means to produce parallel scored lines longitudinally thereof While retaining said strip substantially flat and unfolded, comprising mechanism effective to slightly displace a longitudinal central section of substantial width from the main plane of the strip, thereby producing scored lines of broken down fibers along the edges of said displaced section.

9. In a fiber reed machine, mechanism for performing a successive series of operations comprising means to feed a flat strip of fiber to said machine, means to score said fiber strip in parallel lines longitudinally thereof, and substantially equidistant from each other and from the edges of the strip, while retaining said strip substantially fiat and unfolded, and means to apply glue to one surface of the strip, to fold the edge portions thereof inwardly into overlapping relation to each other. and to press said edge portions into engagement with the body of the strip and with each other.

10. In a fiber reed machine, mechanism for performing a successive series of operations comprising means to feed a flat strip of fiber to said machine, means to score said fiber strip in parallel lines longitudinally thereof, while retaining said strip substantially flat and unfolded, and means to apply glue to one surface of the strip. and to fold the edge portions thereof inwardly into overlapping engagement with each other and with the body of the strip.

l1. In a fiber reed machine, the combination. in consecutive operative relation. of means to supply a fiber strip with means to prepare said strip comprising a scoring mechanism having a pair of driven rolls, one of which is provided with an annular groove and the other with an annular rib pro'ecting into said groove but spaced from the ottom and side edges thereof, means to a ply an adhesive to one surface of the strlp, and means to fold edge portions of said strip inwardly into overlapping relation to each other thereb to form a multi-ply fiber strip.

12. In a ber reed machine, the combination, in consecutive operative relation, of means to supply a fiber strip with nieans to prepare said strip comprising a scoring mechanism having a air of driven rolls, one of which is provide with an annular groove and the other with an annular rib projecting into said groove but spaced from the bottom and side edges thereof, said rolls having cylindrical portions at each side of said groove and rib rotatable in closely adjacent positions, thereby to maintain the strip in substantially flat and unfolded condition, means to apply an adhesive to one surface of the strip, and means to fold edge portions of said strip inwardly into overlapping relation to each other thereby to form a multi-ply liber strip.

13. In a fiber reed machine, the combination of a plurality of consecutively arranged stations effective respectively to supply a fiber strip, to score said strip, to a pl adhesive to a surface of said strip, to ibl said strip into several plies, to press said plies into engagement with each other and with the central portions of said strip, and to Wind up the resultant laminated strip, said folding station comprising means to bend one margin of the strip inwardly over the central portion of the strip, and means to bend the other margin inwardly and overlapping said first margin, thereby to produce a strip of threeply structure throughout substantially its full width.

14. In a liber reed machine, the combination of a plurality of consecutively arranged stations effective respectively to supply a fiber strip, to score said strip, to apply adhesive to a surface of said strip, to fold said strip into several plies, to press said plies into engagement with each other and with the central portion of said strip, and to wind up the resultant laminated strip, said folding station comprising means to bend one margin of the strip inwardly over the central portion of the strip and means to bend the other margin inwardly and overlapping said first margin, and said pressing station comprising means to press sald margins into engagement with the body of the strip and with each other thereby to produce a strip of three-ply structure throughout substantially its full width.

15. In a fiber reed machine, means to feed a strip of fiber, means to break down the fibers along spaced parallel lines longitudinally of the strip, means to apply glue to the underside of said strip, and means to form a threeply folded reed therefrom, said folding means comprising members positioned to receive the 6 I megas? stri in inverted position after allplication of t e glue thereto and shaped to fo mar al portions of the strip downwardly an inwardl upon a central ortion of the strip 5 and a. on said broken own lines with the glued sur ace of the strip inturned.

In testimony whereof we have hereunto axed our signatures.

GUSTAF E. NORDSTROM.

10 JOHN E. MILLETT.

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