US1169197A

US1169197A - Web-cutting mechanism for envelop-machines and similar machines.

Info

Publication number: US1169197A
Authority: US
Inventors: Charles B Sanders
Original assignee: Union Bag and Paper Corp
Current assignee: Union Bag and Paper Corp
Priority date: 1914-05-14
Filing date: 1914-05-14
Publication date: 1916-01-25
Anticipated expiration: 1933-01-25

Description

c. B.SANDERS, WEB CUTTING MECHANISM FOR ENVELOP MACHINES AND SIMILAR MACHINES.

APPLICATION FILED MAY 14, I914;

' Patented Jan. 25, 1916.

4 SHEETSSHEET I.

WW: avwe who? C. B. SANDERS.

WEB CUTTING MECHANISM F0 8 ENVE'LO P MACHINES ANI) SIMILAR MACHINES. APPLICATION FILED MAY 14, I9I4. 1,169,197.

Patented Jan.2 5, l9l6.

4 SHEETSSHEET 2.

C.B.SANDERS, 'WEB CUTTING MECHANISM FOR ENVELOP MACHINES AND SIMILAR MACHINES.

APPLICATION FILED MAY I4, I9I4.

1,169,197. I 1 Patented Jan. 25, 1916 4 SHEETSSHEET 3- C. B. SANDERS. WEB CUTTING MECHANISM FOR ENVELOP MACHINES AND SIMILAR MACHINES.

APPLICATION FILED MAY 14, I914. I 1,169,197, Patented Jan. 25, 1916.

4 SHEETS-SHEET 4.

5] vwe nboz UNITED STATES Parana carton PAPER COMPANY, OF NEW YORK, N. Y.,' A CORPORATION OF NEW JERSEY.

WEB-CUTTING- MECHANISM FOR ENVELOP-MACHINES AND SIMILAR MACHINES.

To all whom it may concern:

Be it known that I, CHARLES E. SANDERS, a citizen of the United States, and resident of Montclair, in the county of Essex and State of New, Jersey, have invented certain new and useful Improvements in- Web-Cutting Mechanism for Envelop-Machines and Simi-' lar Machines, of which the following'is-a specification.

This invention relates to web cutting T mechanism of envelop machinesor similar machines for continuously moving webs, and has for its object to provide means by which the cut or printed impression may be pro duced at ,diflerently spaced intervals in the web without 'alteration of the printing or cuttin roll. 1 i

A further object of my invention is to provide a mechanism ofthis character which v may be combined withhanenvelop machine to-produce enve'lops of different engths in one machine with simple changes in adjustment.

after described and Further objects of the invention reside in improvements in the various details of construction of themechanism as will be herelnpointed out in the appended vclaims.

In the accompanying drawings I have illustrated a preferred embodiment of my invention as combined, with an envelop ma-' chine and in the said drawings: Figure 1 isa"plan'r'yiew of my improved machine;

Fig. 2 is a longitudinal section of the same;

Fig. 3 is a side view of' a portion of the machine showing the driving gears; Figs. 4,

5, 6 and 7' are detailed views of the cutter adjustingmechanism; Figs. 8 and 9 are diagrammatic views showing theenvelop in its various stages of manufacture; Fig. 10 is a partial plan view of a modified machine showing a printing as well as a cutting mechanism.

Referring now to the drawings 1 indicates the frame of the machine at one end of which is supported a roll of paper 2 from which envelops areto be made. The paper from the roll passes around through the guiderollers 3, and thence between the pasting disk 1 and cooperating roller 5. The pasting disk 4'runs in a paste tank 6 which is supported on the machine frame and applies a line of paste on one edge of the web as it is continuously fed mto the machine;

Specification of Letters Patent. Patented Jan. 1916: Application filed May 14, 1914. Serial No. 858,596.

After passing beyond '-.the roller 5 the webpasses between the edge cutting rolls 7 and 8, of which the bottom" roll 8 consists of a hardened steel cylinder, against which the knives on the roll 7 work in cutting the web. As shown more particularly in Fig. 1 the knives carried by the roll 7 comprise two nal knives 9, forming with the V-shaped 7 CHARLES B. SANDERS, or MONTCLAIR, New JERSEY, nssreivon 'ro THE UNION BAG &

slightly inclined but substantially longitudicircumferential knife 10 a. cutting die, cutting each edge of the paper the shape shown atainFig.8.

Beyondthe rolls 7 and 8. the web runs between the cooperating screasing rolls 11 and 12 which crease the web along the line b to form the side flaps c and d. The'web then passesthrough the side folders 13 by means of which the flaps c and (Z are laid one ever the other to form thebody of the envelop. This folding mechanism I have not shown in detail, as it may be of the kind known as fplowshare folders, and forms no mechanism comprises plates properly shaped to lay or fold over the'flap as the web passes beneath them. Beyond the side folders are arranged draw rolls 14 and '15 by which the web of paper is drawn through the machine, these rolls being made. of any suitable construction to secure a sufficient grip upon the paper. As shown the bottomroller 15 comprises a metal shell; while the upper roller consists of two disks whose periph- 4 part of the present invention. The folding eries are designed to grip the surface of the lower roll. I

The end of the web as it leaves the drawing rolls is thrust between the cut off rolls 16 and 17 by means of'whieh the blanks are separated from the webalong the line e ,as shown in Fig.9. These rolls comprise a lower hardened steel roller and upper roller carrying a knife of'proper shape to 'give the -des ired--cut. yond the cutting.

rolls are arranged the bottom forming rolls which I'will later describe.

The shaft 18 of the lower cutting roll 17 constitutesthe driving shaft of the machine and is. extended beyond the machine frame to receive the fast and loose pulleys 18. The upper roll 16 is driven by means of a pinion 19 between the frame 1 and the bearing oftheroll.

Attached to the shaft 18 beyond the frame is a pinion 32 which drives through the gear 33, thepinion 34 on the shaft of the lower draw roll 15. As shown in Fig. 3 the gear 33 is supported on a stub axle mounted for adjustment on an arc concentric with the shaft 5 of' the lower draw ro ll whereby by substituting pinions of different sizes for the pinion 32 the speed of the draw rolls relative to the driving shaft may be varied and consequently the speed of movement of the web increased or decreased as desired. The purfpose of thisadjustment is to secureenvelops I of different lengths. The length of'the envelop is obviously determined by the distance between the edge cuts effected by the rolls 7 and'8, and this distance is'determiiied by the amount of paper fed for each revolution of the cutting rolls. It is obvious how- 'ever that at the moment of cutting the sur face speed of the cutting rolls at thei-rpoint of engagement must be equal to the speed of the web, otherwise when the paper is gripped between the knives and the lower roll, the

pull of the paper by the more rapidly revolving draw rolls would tear the paper and 25. cause an imperfect envelop; -'In' order therefore to vary the length of the envelop by J varying, the speed movement of the web I have provided means for driving the cutting rolls in such a manner that the time requiredfor a complete revolution remains the same,

but the surface speed of the periphery of therollers 7 and 8 during the moment of cutting may be varied in synchronism with the 7 various speeds of the drawing rolls.

4 driving shaft by means of apinion 2 0 which drives through the idler 21, the gear 22from which the edge cutting rolls are driven as will now be described.

I which may 1, on which is mounted a shaft 23 ofv a; hand be 'rotat'ably adjusted by' means The 'ciitting rolls are driven from the Extending beneath concentric with the'shaft 30 the roller 27 and grooves 28 will act as a shaft coupling and drive the shaft 3Ov at the same speed as the gear 22. When the crank pin 26 is eccentric to the shaft 30, the shaft 30 will still make 22, but during that portion ofthe revolution which the point of engagement of the roller 27 and the groove'28 is most distant from the center of the shaft 30, the speed of the shaft 30 will be slower than that of the 1 gear in the ratio of the distances of the one revolution for each revolution of the gear roller 27 from the center of the shaft and the center of the crank pin respectively. When the roller is at the point in its revolu 'tion-opposite the point shown in Fig. 4, the speed of the shaft 30 will be greater than that of the gear in the same ratio. By arranging the intermediate gearing of the cutting rolls so that the cutting takes place substantially at the instant in the rotation of the shaft 30 that its speed is greatest, the speed during the cutting can be adjusted by the hand wheel 24 to substantially synchronize with the speed of the web as varied by the change in gear 32. To permitthe gear 22 to be adjusted as described, and to retain the driving connection with the gear 20 the idler @21 is supported on a stubbearing 21 mounted for adjustment in the machine frame on an arc concentric with the gear 20.

The bottom forming mechanism forms no part of the invention of the present application and therefore has not been shown m j J detail and'comprises briefly a pair of creasing rolls 35, 36\ which creases a blank .along the line f of Fig. 9, add delivers it to the folding and pasting rolls 37 38, whichgrip the blank along the lineof theend fold,

the folder 13 is'a transverse bar of the frame pasting the flap against the body of the 05 7 blank to form the completed envelop as" shown at'E in Fig. 9. The envelop is de-' wheel 24 and locked in its adjusted position livered from the rolls 37, 38by means of a? by means of its split clamping bearings 25v asi stripper 39 through which the, envelop is 45 shown in Figs. 4and 5. The shaft 23 is pro; vided beyond its bearing with a crank pin 26 whichforms a bearing for the gear 22. On

its face away from the shaft 23 the gear 22;

is provided with a roller'27 eccentrically dis- 50 posed with relation to the gear and operating in a diainetric groove 28 across the face of a disk 29 attached to a "shaft 30 mounted in ,fixed hearings on the machine frame. The shaft 30 is in the same horizontal plane as 56 the shaft 23 but is out of alinenient there- 66 It is obvious that when the crank pin 26 is guided to the delivery belt 40.

The feed roller 5 is preferably driven with the draw rolls 14, 15 to havethesame surface speed as the paper. As shown this roll is driven through; a side shaft 41 having a mitered gear on each end meshlng with miter gears on the end of the lower draw roll shaft and the shaft of the roll-5 respectively. The creasing rolls 11,412 are also driven from the shaft 41, 'b'y,means of suitable miter gears 42, the shafts'of the rolls being connected by spur gears -o 1 1e of which is indicated at 43. For convemonce :in determining the proper adjustment of, the'cutting mechanism the hand wheel 24 provided with a scale on its periphery with which cooperates the index pouiter 45 attached to the adjacent bearings of the,

shaft 23. The scale may-be marked with numbers indicating the length ofthe envelop to be formed, -Wh10h numbers W111 alsobe'stamped on the various that the two adjustments may be accurately obtained when changing-the length of the envelop without experiment.

- It will be obvious that my improved mechanism may be employed withequal adting mechanism, and also a prlnting mechanism for. printing a return address or other legend upon each envelop. As here shown the machine is the same as in'Figs. l and2 except that the frame is the same in Figs.

' 1 and 2 except that the frame is elongated between the pasting roll 5 and the cutting rolls 7 and 8. to provide space for the pair of printing rolls and 51. It will be understood that the upper roll constitutes the platen, and the lower roll carries the,type, not shown. The shafts of the printing rolls are geared together at 54 and the shaft of the'lower roll is extended b'eyondthe frame and provided with a miter gear driven from a similar gear attached to the shaft 31 whereby the printing rollsand cutting rolls will-be driven arid adjusted in synchronism.

I-have described my invention in a detailin order that it may be fully understood,

but my invention is of. course not limited to ,1 such deta ls of construction, and, covers all such modifications oi the same as fall within the scope of the" appended claims. It

will also be understood that the invention is not limited to an envelop machine, but as stated above, may be employed with equal advantage in any machine em ying a web cutting or printing mechanism.

Having thus described my invention, what I claim and desire to secure by Letters Patcut is 1. In a; machine of; the class described,

the combination of a pair of rollers for feed mg the web, means for continuously driv- ,ing said rollers at various speeds, a pair of gears 32 so 4 shaft, a disk mounted on rollers carrying devices adapted to engage and operate upon said web at intervals inthe rotation of rollers, and means for driving said last mentioned rollers comprising a'variable speed gearing whereby the surface speed of said rollers during the interval of their engagement may be varied without varying the time of rotation of said rollers, "said means comprising a rotatable crank, a disk driven thereby, and means for varying the relative positions ofthe centers of rotation of said crank and said 2. In a mechanism of the class described, the combination of 'a pair of cooperating ,rolls, a pair of draw rolls for feeding the web between said first mentioned rolls, means for driving said first mentioned rolls comprising a driving member having a crank pin, a driven disk having a transverse slot engaged by saidcrank pin, and means for bodily adjusting the shaft of said driv, ing member relative to the center of rota tion of said driven disk.

3. In a machine of the .class described, the .combination of a pair of rolls, a pair of draw rolls forfeeding a web throughsaid first mentioned rolls, a driving shaft, a change gear between saiddriving shaft and said draw rolls, means for driving said first mentioned rolls comprising a supporting shaft having a stub axle eccentric thereto, a driving gear supported on said stub axle and driven from said driving shaft, a driven shaft out of alinement with said supporting said driven shaft and having a transverse slot, a crank pin carried by said driving gear and engaging said slot, driving connections between said disk and said. rolls, and means for rotatably adjusting said supporting shaft and locking'the same in adjusted position.

.Signed at Montclair, in the county of day of Mav, 1914.

CHARLES B. Witnesses: I n y W. 0. Human, W. M. HOWELL.

SANDERS.

Essex and State of New Jersey, this 9th