Патент USA US2124926код для вставки
' July 26, 1938. I 2,124,926 G. E. NORDSTROM ET‘ AL MACHINE FOR‘ MAKING FIBER REED Filed NOV. 16, 1936 ’ 3 Sheets-Sheet 1 fake/‘57701652? m . July 26,1938. G. E. NORDSTROM ET AL 2,124,926 MACHINE FOR umxmw FIBER REED Filed Nov. 16, 19:56 3 Sheets-Sheet 2 IH"l ‘q.l Iu?lml.l l %\‘ z! ‘jzdemérr'. iii/WW. die». July 26, 1938. G. E. NORDSTROM El‘ AL ‘ 2,124,926v MACHINE FOR, MAKING‘ FIBER REED Filed Nov. 16, 1936 s SheetS-Sheet 3 ‘Tm. J. War-47.1fm)! arJ 7.1561894 41... . T- ‘mum: . 2,124,926 UNITED j’ srArEs2,124.92‘: . PATENT‘ bFl-‘lCE- I > ' . ‘mom son. animal-‘man ms Gustaf E. Nordstrom and ‘Edward J. Holden, Gardner, Mara, assignors to American Fibre . Corporation, Gardner,‘ Masa. a corporation of . Massachusetts Application November 1s, 1936, Serial No." 110,93: 7 6 Claims. This invention relates to the manufacture of (CI. 93-84) looking in the direction of the arrow 8 in Fig. 6; ?ber reed by a continuous operation from a nar Fig. 9 is a rear elevation of the dies, looking row strip of heavy paper, commonly supplied as > in the direction of the arrow 9 in Fig. 6; a narrow roll of large diameter. A machine for Fig. 10 is a plan view of the deuce which 5 this general purpose is shown in a prior patent to guides the paper to the dies, looking in the di ' the applicant Nordstrom, No. 1,962,257, issued rection of the arrow III in Fig. 6; Fig. 11 is a side elevation of the device shown June 12, 1934. With this prior machine, the paper was gummed~and dried in a preliminary operation, and was scored for folding along predetermined lines before the previously dried glue was moistened. One object of our invention is to provide a reed in Fig. 10; ' Fig. 12 is a detail sectional view of the paper guiding device, taken along the line l2-l2 in 10 Figs. 6 and 11; ‘ Fig. 13 is an enlarged sectional front elevation of the forming dies, taken along the line 13-" making machine in which the gluing of the paper takes place during the passage of the paper in Fig. 6; through the machine,_while the pre-drying of the glue and the subsequent moistening thereof tially:; formed reed, taken along the line ll-M in is wholly avoided. ~ A further object is to_provide a machine in 20 which the scoring operation is eliminated and in which the freshly gummed paper is drawn ' Fig. 14 is a detail sectional view of the par Fig. ; - Fig. 15 is an enlarged partialvsectional plan view of the forming and pressing 'roll's, taken along the line l5—i5 in Fig. 6; . ‘ taken along the line lB-IB in Fig. 6; pletely formed reed to the winding devices. Another object is to provide means in such a tain roll-adjusting parts appearing in ,Fig. 1 but subsequent and separate drying and rewinding Fig. 17 is a detail side elevation showing cer in a different position; and Figs. 18 and 19 are ‘views similar to Fig. 15 but showing modi?ed forms of rolls and deeds. Referring to the vdrawings, our improved'reed making machine comprises a frame 20 support '. operation. Our invention further relates to'the provision of improved dies and guide devices for effectively forming a reed from a flat strip of freshly gummed paper. Our invention further relates to arrangements and combinations of parts which will be here inafter 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 side elevation, partly in section, 40 showing our improved reed making machine; Fig. 2 is a detail front view, looking in the direction of the arrow 2 in Fig. 1; Fig. 3 is an enlarged side elevation of certain ' of the parts shown in Fig. 1; ' Fig. 4 is a sectional front elevation, taken along the line 4-—4 in Fig. 3; . Fig. 5 is a detail plan view, looking in the di rection of the arrow 5 in Fig. 3; Fig. 6 is a side elevation of the reed forming parts, partly in section and taken substantially along the line 6-6 in Fig. '7; 20 Fig. 16 is a cross section of the formed reed, through a ?xed die and between tensloning and forming or pressing rolls which deliver a com machine for drying the formed reed as it is de livered to the winding spool, thereby avoiding a 15 _ Fig. '7 is a plan view of certain parts, looking in the direction of the arrow 1 in Figs. 1 and 6; Fig. 8 is a front elevation of the forming dies, ing standards 2| -in which a roll L of kraft or 30 similar paper is rotatably mounted. A weight W is preferably guided between the standards 2| and rests loosely on the top of the roll L, thus providing friction to sufficiently retard the de livery of the paper to the reed-forming mech anism. A glue pan 22 (Figs. 1 and 6) is mounted on a bracket 23 supported by the frame 20' and is provided with bearings for a drum 24, the lower portion of which dips into the glue as the drum 40 rotates. A transfer roll 25 rests on ‘the drum 24 and is rotatably mounted in bearings in the swinging ends of arms 26, mounted‘on a ?xed pivot 21. The paper strip S is guided over the transfer roll and in segmental contact therewith 45 by a fixed guide-roll 28. The glued or gummed strip S is engaged by a scraper or blade 30 (Figs. 6 and 7) pivotally mounted adjacent a ?xed guide rod 31 on a post 3|“. The scraper is secured in position by a 50 clamping nut 32 which may be loosened when it is desired to angularly adjust the scraper blade about its supporting axis. The function of the scraper is to remove surplus glue from the strip S. As the paper strip 8 is advanced'by the upper 55 2 2,124,998 forming and pressing rolls 4. and 4|, it is drawn under a forming device or guide member 42 and is drawn through a pair of forming dies 42 and 44. i The forming device 42 is secured to the under side of a ?at paper guide 45 (Figs. 10, 11 and 12) . The guide 42 is substantially semi-circular in cross section in its middle portion, as indicated in Fig. 12. and is tapered or beveled oi! in its 10 rear portion as shown in Figs. 6 and 11. At its front end, the guide 42 is tapered in all directions, so that the extreme front end portion is conical and resembles in contour the pointed end of a pencil. The guide plate 45 is secured to a ?xed 15 arm 46 (Figs. 1 and 6) supported by the post 3|“. The dies 43 and 44 are mounted side by sidé in a holder 41 (Fig. 7) carried by a fixed support 46 and provided with a clamping screw 49 by which the dies may be held in longitudinally 20 adjusted position. When the dies are assembled, they provide a gradually contracting passage which is substantially square at its larger end, as indicated at 56 in Fig. 9. _ - The passage is gradually contracted both ver 25 tically and horizontally toward the left. in Fig. 6, and the outlet of the passage has the irregular and much reduced shape indicated in Fig. 8, in which it will appear that the passage is of gen eral contracting U section in both dies, but with 30 the outlet 5| in the die 44 of substantially less height than the outlet 52 in the die 43. The operation of the die in folding the paper strip will be hereinafter described. As disclosed herein, the machine is designed 35 for the production of a special reed R having the cross section indicated in Fig. 16, the reed being ?at on one side and convex and substan tially semi-circular on the other. ' ‘The rolls 40 and 4| are designed to produce 40 a reed of this particular cross section, the roll 40 being provided with a groove‘ 54 (Fig. 15) having a rounded bottom, and the roll 4| being provided with a ?ange 55 ?tting the groove 54 but having a square outer edge. 45 ' By varying the cross section of the groove and ?ange, the shape of the reed produced may be modi?ed as desired. In Fig. 18 we have shown a roll 4|)”L having a rib'at the bottom of the groove and producing a form of reed R’ with a single groove therein. The roll 40b in Fig. 19 with two ribs at the bottom of the groove will produce a reed R” with parallel grooves therein. The forming and pressing roll 40 is mounted in a ?xed bearing block 51 (Figs. 1 and 3) which 55 in turn is secured to a ?xed bracket 58. A strip per 59 is also mounted on the bracket 58 and extends into the groove 54 to remove the formed reed therefrom. - . The roll 4| is rotatably mounted in a bearing 60 block 60 (Figs. 3 and 4) which is ‘connected by a link 6| (Fig. 5) to a forked link 62. The link 62 is also pivotally connected to the end of a stud 63 threaded in the axial opening of an ad justing screw 64. The screw 64 is threaded in 65 the end portion 65 of the ?xed bracket 58 and a lock nut 66 is provided to maintain the adjust ment. ‘ ‘ The thread on the stud 63 is of the same hand as the thread on the screw 64 but of slightly 70 different pitch. Consequently when the screw 64 is rotated, a very delicate differential adjustment of the stud 69 is provided, which adjustment is .transmitted through the links 62 and 6| to the bearing block 60 of the forming and pressing 75 roll 4|. The links 6| and 62 form a toggle, commonly aligned with the stud 62 as indicated in Figs. 1 and 3 but capable of being swung upward man ually to the position shown in Fig. 17 when it is desired to separate the rolls 46 and 4| for thread ing or other purposes. This separation of the rolls may be quickly and easily accomplished. without destroying the ‘adjustment and setting of the rolls. ~ ' A second set of forming and pressing rolls II 10 and 'II is mounted below the‘ rolls 46 and 4|, said rolls being supported on a ?xed bracket 12. A third bracket 13 is provided on which a third set of pressing and forming rolls may be mounted ii’ desired. A second stripper ‘I5 may be provided 15 for the roll ‘I0 and is mounted on the fixed bracket 12. The mounting and adjustment of the lower rolls 10 and ‘H is identical-with the mounting and adjustment of the rolls 40 and 4| as above 20 described, and further reference thereto is con sidered unnecessary. A drive shaft 80 (Figs. 3 and 4) is mounted in a bearing 9| on the lower bracket 13 and receives power from any suitable source. A gear 62 on 25 the shaft 80 engages an intermediate gear 62 on the bracket 12 which in turn engages a gear 64 mounted to rotate with the lower forming roll 16. The gear 64 in turn engages an intermediate gear 85 mounted on the upper bracket 56 and meshing 30 with a gear 86 associated with and driving the upper forming roll 4|). The front upper forming roll 4| is preferably geared to rotate with the back forming roll 46 but the lower front roll ‘H is preferably free to 35 rotate in contact with the roll 16 and with the reed passing between the rolls. After passing through the upper and lower pairs of forming and pressing rolls, the formed reed R is drawn downward past a guide-roll 90 40 (Fig. 1) mounted on a swinging support 9| and held in operative position by a stop 92. The roll 90 may be swung forward out of the way when desired, for cleaning or other purposes. The reed R passes from the guide-roll 90 to a 45 drying drum 94 pivotally mounted on a carriage 95 and rotated by a motor M or other suitable driving mechanism. The reed is drawn over a sector of the drum 94 and is then wound on a spool 96, rotatable in bearings 9'l'slidably sup 50 ported on guide-bars 98 extending rearward from the carriage 95. Weights W are connected to the bearings 91 by cords or chains 99 and pull the spool 96 forward to press the reed thereon into yielding engagement with the drum 94. 55 The carriage 95 is reciprocated on brackets I00 during the winding operation to provide the de sired traverse for laying the reed helically on the barrel of the spool 96. The traversing mecha nism may be of any suitable construction, such 60 as is shown for instance in the Nordstrom Patent No. 1,962,257 previously mentioned. Suitable provision is preferably made for heat ing the drum 94. In the drawings we have indi cated the drum as being heated by steam con 65 ducted from a steam supply pipe ||l| by a ?exible feed pipe “)2. We have also shown a ?exible re turn pipe I03 connected to an exhaust or return main I04. Any other suitable or convenient method of heating the drum 94 may be substi 70 tuted. Having described the details of construction of our improved reed making machine, the method of operation will be easily apparent. After the machine is threaded up, the paper strip. 8 is 75 3 '2,124,926 drawn into the machine by the tension of the upper and lower pairs oi? forming and pressing rolls and by additional tension supplied by the winding drum. As the paper passes over the transfer roll 25, the under side of the paper receives a coating of adhesive, such as gum or glue, and any surplus adhesive is removed by the scraper blade 30. 10 Thepaper strip S is then drawn under the guide plate 45 and guide member 42 and is under such tension that the paper assumes the upwardly reed, that improvement which consists in provid ing in said winding apparatus a heated rotated roll, a. winding spool, means to press said spool yieldingly against said roll, and means to guide said reed into contact with said heated roll at a point removed by approximately one-eighth of a circumference from the point where the reed is wound. on said spool, whereby said reed is sub stantially dry as it approaches said winding spool and is further dried by contact of said heated 10 roll with the outer layer of reed on said spool. 2. In a machine for making ?ber reed by the successive operation of means to supply a ?ber concave form indicated in Fig. 12. The paper in this concave form then enters the larger end of the passage between the forming -‘strip, a glue-applying device, guiding, forming, crushing and‘pressing devices, and a winding de 15 dies 43 and 44, with the. two edges of the paper upwardly disposed. As the paper is drawn vice, and in which said pressing device com through the dies, the rear or left-hand edge of prises a driven roll mounted in ?xed bearings the paper, as viewed in Fig. 13, is drawn into the and a second roll mounted in movable bearings, upper portion oi! the wider forming groove 52 and 20 the restof the paper is crushed or irregularly folded more or less into the position indicated in 25 Fig. 13. As the strip leavesthe forming dies and ap proaches the forming and pressing rolls 40 and 4|, the strip becomes flattened and widened and assumes substantially the condition indicated in vFig. 14, where it will appear that the upper or leit-hand edge portion S’ is so disposed that when pressed between the forming rolls, the'edge 30 of the portion S’ will substantially coincide with the edge of the reed. The reed then passes between the forming and that improvement which consists in providing di?erential mechanism for positively adjusting said movably mounted roll toward and away from said driven roll, said differential mechanism com prising a stud connected to said movable bear ings, an adjusting screw in which said stud is threaded, and a ?xed element in which said 25 screw is threaded, said screw and said stud hav ing external threads of the same hand vbut of slightly different pitch. 3. In a machine for making ?ber reed by the successive operation of means to supply a ?ber strip, a glue-applying device, guiding, forming, 30' crushing and pressing devices, and a winding de pressing rolls l0 and ll, as indicated in Fig. 15, Y vice, and in which said pressing device compris and is thereby given the cross section shown in ing a driven roll mounted in ?xed bearings, a second roll mounted in movable bearings, and a 35 Fig; 16. As the adhesive is still moist at this roll-adjusting device, that improvement which point in the operations, the several layers of paper are ?rmly cemented together. A." An additional pressing and forming operation is performed by the lower rolls ‘l0 and ‘II, this second operation improving the uniformity and ?rmness of the product. If desired, the lower driven roll "I0 may be of very slightly greater diameter than the upper driven roll 40, so as to provide a very slight additional tension or draft on the reed as it emerges from the rolls ill and ll. The reed delivered by the rolls ‘I0 and ‘II is further tensioned by the coacting winding drum 50 N and spool 9i and the reed is held in close contact with the heated drum as the reed is de livered to the spool. . The reed wound on the spool also rolls in con tact with the heated drum until covered by a succeeding layer, so that additional heat is trans formed and the reed is dried to such an extent that ea M it may be used directly in a loom or for other purposes without an additional and separate dry consists in providing thrust-transmitting connec tions between said adjusting device and said mov able bearings which connections comprise toggle members which constitute a rigid brace when in 40~ normal operative position and-which are manu ally movable irom operative positionto separate said rolls, while maintaining the adjustment of the movably mounted roll unchanged when said toggle and roll are returned to normal operative 45 position. 4. In a machine for making ?ber reed, a pair of forming dies having associated passages each passage being gradually contracted toward the delivery end of the dies and being of broadened U-shape in cross section, with one passage sub stantially broader at its delivery end than the other passage. 5. In a machine for making ?ber reed, a pair of forming dies having associated passages, each 55. passage being gradually contracted toward the delivery end of the dies and being of broadened ing, operation. A substantial saving in manu ‘ U-shape in cross section, with one passage sub stantially broader at its delivery end than the iacturing cost is thus e?ected. other passage and so positioned that the asso While a single unit only has been shown and 60 ciated edge portions 01’ said passages are in align described, it will be understood that a commer cial' machine will ordinarily comprise a plurality ment at one side or said passage and substan of such units, preferably assembled as indicated tially o?set at the other edge. 6. In a machine 'for making ?ber reed, a ?xed in said Nordstrom patent. Having thus described our invention and the forming and crushing device having a passage advantages thereof. we ‘do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what we claim is: I. In a machine for making ?ber reed in which strip-supplying means, a glue-applying device, a 70 .guiding and preliminary rorming device. forming and crushing dies and rolls‘ and winding ap paratus cooperate in successive operative rela tion to transform a strip of paper into a ?ber through which a strip of paper is drawn and irregularly crushed, said passage being gradu ally contracted toward its delivery end and hav ing an oii'set portion at said delivery end which is effective to substantially align'the outer,edge of 70 the crushed paper strip with one edge‘ of the resultant reed. GUBTAF E. NORDS'I'ROM. EDWARD J. HOLDEN.