US1572817A - Machine for interfolding paper - Google Patents

Description

Feb. 9

, Y 1,572,817 G. A. SHAFFERv ET Al. Y

MACHINE FOR INTERFOLDING PAPER Filed Dec. 31, 1924 6 sheets-Sheet 1 H W/RT A TTORNE YS.

` Feb. 9 1926.

G. A. SHAFFER ET AL MACHINE FOR INTERFOLDING PAEER Filed Dec, 31, 1924 5 She9ts sheet g Feb. '9 1926.

Filed Dec. 51, 1924 6 Sheetssheet 3 GLENN H SHHFFER INVENTORJ FP//v/fL//v IfI//RTZ f ATTORNEYS.

1,572,817 G. A. SHAFFER ET AL n MACHINE FOR INTERFOLDING PAPER Feb. 9 1926.

Filed Dec. 5l. 1924 5 Sheets-Sheet, 4

Feb. 9 1926. 1,572,817

G. A. SHAFFER ET AL V MACHINE FOR INTERFOLDING PAPER Filed Deo, 3l, 1924 6 sheets sheet 5 W I Il a I man@ I Yim wlw lll rHI. W \v\ .nm \\\MM l2 la /a 55 55 55 A E E /E Feb. 9 1926. 1,572,817

G. A. SHAFFER ET AL l MACHINE FOR INTERFOLDING `PAPER Filed Deo. 3l, 1924 6 SheetSK-Sheet 6 f7.5 7 fir,` f7@ 7 32 3B 3 F 1G /0 F/q,` Hc /2 Flc; 6

GL EN# H. JHHFFER INVENTOR.

FRHN/f hf M//RTZ BYl idatented eh. d,

GLENN A. SHAFFER AND FRANKLIN H. WIRTZ, 0F GREEN BAY, WISCONSN.

MACHINE FDR INTERJEOLDJING PAPER.

Application'led December 31, 1924. Serial No. 759,059`s T0 all whom 'it may concern.'

Be it known that we, GLENN A. SHArrua, a subject of the King of Great Britain, and FRANKLIN H. VVnrrz, a citizen ofthe United States, residing at Green Bay, in the county of Brown and. State of lVisconsin, have invented certain new and useful lmprovements in Machines for Interfolding Paper, of which the following is a specification.

The invention relates to foldingr machines, and more especially to the class of machines for the'folding and interfolding of paper sheets for packaging thereof.

\ The primary object of the invention is the provision of a machine of this character, wherein paper in superimposed webs is fed into the same at one end, and these webs are cut into predetermined length and thereafter folded or interfolded in a novel manner so as to produce a luralityof interfolded units, which may be packaged in their series for subsequent consumption.

Another object. of the invention is the provision of a machine of this character, wherein the folding and interfolding mechanism is of novel form and construction to assure perfect action and positiveness in the operation thereof` whereby the paper units in series will be folded and interfolded in a single operation of the machine.

A further object of the invention is the provision ofa machine of this character, wherein two or more superposed sheets of paper or webs will be cut into predetermined units, which will be automatically folded so that the terminal portions of advanced units will be interfolded with succeeding units, in such manner that the withdrawal of one unit froma cabinet containing a package of interfolded units will leave the terminal portions of the succeeding unit exposed A still further object of the invention is the provision of a machine of this character, wherein the cutting and folding and interfolding mechanisms will automatically operate in unison, for the cutting, folding and interfolding actions, and the continuous' stacking of the interfolded sheets in a trough for the convenient packing of the same prior to removal of the assembled units orsheets from the machine.

A still further object of the invention is the provision of a` machine of this character, wherein the parts thereof are comparatively simple and assembled in a novel manner, to assure thorough reliability and eficiency in thc operation thereof, durability and minimum expense for installation.

lVth these and other objects in View the invention consists in certain novel features of construction and combinations and arrangements of parts as will be hereinafter fully described in detail, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

In the accompanying drawings:

Figure l, is a fragmentary side elevation of the machine constructed in accordance with the invention. c

Figure 2, is an end elevation taken from the rear of the machine.

Figure 3, is a top plan view of the machine.

Figure 4, is an enlarged fragmentary longitudinal sectional view showing in detail the cutting and folding and interfolding mechanisms.

Figure 5, is a transverse sectional view taken on the line 5-5 of 'Figure 1.

Figure 6, is a fragmentary sectional elevation taken through the operating cams.

Figure 7, is a fragmentary detail elevation, showing one position of the tucker arms, during the folding and interfolding operations of the same.

Figures 8, 9, 10, 11, and 12, are fragmentary detail `views showing the folding blades in the different positions with relation to the paper during the folding and interfolding operations of the machine.

Similar reference characters indicate corresponding p arts throughout the several views in the drawings.

Referring to the drawings in detail, A, designates generally the bed of thes stand of the machine, andB, the supporting legs thereof, andl at one portion. of the bed A, is the combined cutting and folding and interfolding mechanisms C., 'and D, respectively, while at the other portion of said bed is a trough E, for receiving the assembled folded and interfol'ded units or sheets, whereby the same can be packaged and labelled prior to leaving the machine.

Mounted on the bed A, at the portion thereof occupied by the cutting and fol-ding and interfolding mechanisms C, and D, is a frame structure 10, having suitably supported therein at the upper portion of the same a guide plate 11, over which travels superposed webs or sheets of paper `12, the latter being directed thereto from a large supply roll (notrshown), and are fed between an lupper pinch roll 13, and a lower bed roll 14, the latter also serving as a measuring roll to measure off a predetermined length of paper. The pinch roll 13, has its axle 15, journaled in adjustable eccentric pivot 16, mounted in the frame structure, while the bed roll 14` has its shaft 17, journaled in bearings 18, in the frame structure.

Arranged spaced from the pinch roll 13. is a guide roll 19, the journal 20, thereof being supported by an adjustable eccentric pivot 21, mounted in the fra-me structure 10, while located between these rolls 13 and 12), is aknife shaft 23, having fitted therein a knife or cutter 24, which engages in channels 25, formed equidistantly lfrom each other in the periphery of the bed roll 14, whereby during the rotation of the latter and the knife shaft the paper 12, will be severed in predetermined lengths to form successive sheets or units during the working of the machine.

Mounted in proximity to the bed roll 14, and the guide roll 19, are superposed strippers 26, and 27, respectively, to prevent the.. severed sheets or units from following these rolls 14 and 19, circumferentially of the same, and to pass between said strippers, the stripper 26, being formed in its lower half with a pocket 28, and step 29, for a purpose presently described.

Located below the guide plate 11, are superposed reciprocatory and swinging tucker arms 30, and 31, respectively, each formed at its free end with a tucker head 32, while the opposite ends of said arms are pivoted at 33, to oscillatory levers 34, and 35, respectively, the lever 34, being keyed to shaft 36, journaled in bearings 37, and likewise `l'ever 35, is keyed to shaft 38jour naled in bearings 39, which with the bearing 437, are sujita'bly mounted on the frame structure 10.

The tucker arms`30 and 31, are fitted with rollers 40, which engage a cam 41, carried on a shaft 42, journaled in bearings 43, and in this manner these arms 30 and 31, move toward and away from each other. A spring 44, which is suitably mounted acts upon the arms 30 and 31, to hold the rollers 40. in constant contact with the cam 41, as will be ap arent.

The shaft arms 45, which are cause-d to operate in unison through the medium of a connecting rod 46, pivoted thereto at 47, while connected to the shaft 38, is another arm 48, the same .being fitted at its free end with a roller 49, adapted to travel upon a cam 50, mounted on the shaft 42, and in this manner the said tucker arms areV reciprocated for a purpose presently describf" l..

Engaged with and acting upon the cons 36, and-38, have keyed thereto,

necting rod 46, is a spring 51, which serves to hold the roller 49, against the cam 50, throughout the operation of ,the maclune.

The tucker heads 32, of the arms 30, andL 31, are arranged between the inner open mouth end of the trough E, and the strippers 26, and 27, and serve to interfold the units or sheets and push the same into said trough for the subsequent bundling and labelling in packaging thereof.

0n the shaft 17, at one side of the frame 10, is a chain sprocket 52, having trained thereover a Sprocket chain 53, the same being also trained over a chain sprocket 54, on the shaft 42, the shaft 17 at the other side of the frame 10, being driven from any suitable source of motive power.

The bed roll 17 and rolls 13, '19, and also knife shaft 23, are properly timed in driving connection with each other in any suitable manner.

In the operation of the machine, the sheet or sheets 12, of paper are introduced into the machine to travel over the guide platt` 11, and pass between the bed roll 14, and pinch roll 15, to be acted upon by the knife 24,'and this bed roll 14 cooperating with the knife shaft 23, measures off single or matched double units, which are cut into unit form by the knife, whereupon Said units are stripped from the bed roll 14, and the guide roll 19, so as to pass between the stripper members 26 and 27, the former stripper being, formed with the pocket 28, and step 29, which will allow the furthest advanced unit including a sheet or pair of superimposed sheets to drop down into the pocket 28, so that the next succeding unit will overlap the precedingI unit. At this point the tucker arm 30, moves in a downward direction and then in a backward course, getting under the overlapped unit.

Now, the tucker arm 30, comes up catching the units overlapped between the heads 32, of both tucker arms 30 and 31, and after the tucker arm 30, has reached its maximum upward stroke, the tucker arm 31, moves upward and backward folding the units over the point 55, of the head 32, on thetucker arm 30, the upward and downward movements of the tucker arms 30, and 31, being accomplished by the cam 41, hereinbefore described.

The backward and forward movements of the arms 30, and 31, are accomplished by the cam 50, as will be apparent. These last named movements of the arms 30, and 31, serve to press ,the massed interfolded assemblage of the units into the trough E, for the stacking thereof, to enable the subsequent packing and labelling of the same.

rI lhe roll 14, is mounted on and free to rotate around shaft 17, the `latter being held in the frames 10, in a fixed position by the nuts on each end-of the shaft 17.

'the upper strippers ilo, are mounted on a shaft h5, and are spacedl al` intervals to coincide with the grooves in the bed roll ll), and the entire assembly of the strippers is free to swing about shaft 2t), whereby the strippers can be lifted out of the opcrators way when threading the machine with a new sheet of paper. 'l`he linl 22, makes the connection between vshaft 20, and thc stripper l'Vhat is claimed is:

l. A machine otthe character described, comprising a stand, a guide plate on the stand, means for feeding sheets onto the plate, means for cutting the sheets successively into units, strippersadjacent to the cutting n'ieans, one of the strippers beingr constructed and arranged to position the units adjacent to each other in overlapped relation to each other, tncli'cr means includ ing pivotally connected members on opposite sides of the path of the units, and mechanism for actuating the tnckcr means for effecting the inter-folding of said units and the pressing of the same in an assembled mass. ,y t

2. A machine yof the character described, comprising a stand, a guide plate on the stand, means for feeding sheets onto the plate, means sively into units, strippers adjacent to the cutting means, one of the strippers being constructed and arranged to position the units adjacent to each other in overlapped relation to one another, tricher means on opposite sides ofthe path of the units, mechanism for actuating the tucker means for effecting the interfolding of said units and pressing the same in an assembled mass, and means for receiving the mass from the 'tricher means.

f Y 3. ln a machine of the character described,

the combination of, means for cutting and feeding the Work material, means for strip ping the cut material from the feed means and having a pocket for the overlapping of adjacent cnt pieces, and pivotal swinging members having tuckers on opposite sides ofthe pocket for folding and interfolding the overlapped pieces into massed assembled form.

Il. ln a machine of the character described, the combination of, means for cutting and feeding the work material, means for stripping the cut material from the feed means and adapted to position adjacent cnt pieces into relation for the interfolding thereof, swinging tnclers for folding and interfelding the positioned pieces into massed assembled form., and means for receiving the massed assembled pieces.

ln a machine. of the character described, the ceiinbinatioirof, means for' cutting and feeding the work materia-l, means for stripping the cut material from the feed means for cutting the sheets succes-v ainl adapterl to position adjacent out pieces in overlapped relation, means for folding and ifntelfolding the positionedpicces intomassed assembled form, comprising, a pair of opposed reciprocatory and i incl-er arms having. tncking heads at their free ends. i i i h. ln a machine of the character described, the combination of, means for cutting and feeding the worli material, means for stripping the eut material from the 'feeding means and adapted to position adjacent cut pieces in overlapped relation one to means ttor folding aml'interfolding the positioned pieces into massed assembled form,

comprising, a pair of opposed reciin'ocatory` and swinging tuclier arms having tucking heads at their free ends, and means located next to the heads for receiving the massed assembled pieces.

7. ln a machine of the class described, in combination, opposed tucker arms, tncker hars each haring an end mounted on one of said arms, a movable pivot for-each of said arms, means for moving said arms alternately out of and into positions where said bars overlap, means acting'npon said pivots to produce longitudinal reciprocatory n'iovement ot said arms while said bars are separated to canse them to alternate in their overlapped position, and means to feed successive sheets of material overlapping position sheets in interfolded relation.

8. ln a machine of the class described, in combination, a frame, a pair of shafts journaledin said frame, bell cranks mounted on whereby to fold said said shafts, a pair of tucker arms pivoted one on each of said bell cranks, a tncker bar engaging the free end of each arm, said bars in normally overlapping relation, means to alternately move said arms out of position Where said bars overlap, means to operate said bell cranks whereby to reciprocate said arms to reverse the overlapping relation of said bars at each irst-named movement of said arms, and means to feed successive sheets of material in overlapping relation to position to be interfolded by said bars.

9. ln a machine of the class described, in combination, a frame, a pair ofy parallel shafts jonrnaled-in said frame, pairs of bell cranks mounted on said shafts, a pair of tricher arms at each side of the frame pivoted one on each of said bell cranks, a tricher bar engaging the free ends ofcorresponding bars of each pair, said tricher bars normally standing in overlapping relation, means to alternately move corresponding arms o l said pairs ont of the position Where said hars overlap, means to operate said bell cranks whereby to reciprocate said arms to reverse the overlapping relation of said bars at each first--nan'ied moverment of said arms, and means to feed successive swinging to said bars in' the other,

Sheelsof material in overlapping` relation lo position, to he interfolded by said bars.

l0. In a machine of the class described, in combination, a frame, a pair of parallel shafts journaled in said frame, pairs of bell cranks mounted on said shafts, a pair of tuoker arms at each side of the frame pivoted one on each of said bell cranks, a tucker bar engaging the free ends of corresponding bars oi each pair, said tueker bars norn1ally` standing in overlapping relation, means to alternately move Corresponding arms of said pairs, means to oscilla-te said shafts to cause the pivot-bearing ends of said hel] cranks lo move in opposite direc- 16 tions, the movement of oscillation of said shafts being alternately reversed, whereby to reciprocate said arms to reverse the overlappingr relation of said bars at each firstnamed movement of said arms, and means 0 GLENN A. SHAFFER. FRANKLIN H. WIRTZ.

Images