US 2213569 A
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Description (OCR text may contain errors)
SePt- 3, 1940- C. J. RoHLAND I PRINTING APPARATUS Filed May 10, 1937 4 Sheets-,Sheet 1 l x TNI/ENToR.v
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ATYURNEYS v Patented Sept. 3, 1940 UN'IE@ STATES anita PRNTING AFPARATUS Curt J. Ruhland, Seekonk, Mass., assigner to Paul- Rohland, lino., a corporation of Rhode Island Application May l0, i937, Serial No. 141,613
This invention relates to a printing apparatus; and has for one of its objects the provision of an apparatus in which there may be printing of the work in any desired number of diierent colors and embossing or severing th-e work as it is discharged from the machine, all in a single pass of the work through the machine without transfer to a different machine for the cutting operation.
Another object of the invention is to travel the work through the machine with greater accuracy so that it will better register with the p-arts which are to print and/or cut the work than is: provided by printing or cutting work in a single at plane by rotating means.
Another object of the invention is the provision of a plurality of units each one of which handles the printing of a certain specific colo-r with an arrangement so that any desired number of units 20 may be supplied or removed from the machine when diierent numbers of colors are desired.
Another object of the invention is to adjust each of the printing units so that different sorts of Awork may be accommodated as topressure applied and the like.
Another object of the invention is to provide each of the print units with the printing rolls and ink conveying rolls with'their axes in substantially the same plane so that from the standpoint of thickness of the dimension of the units they may be multiplied and several of these may be used with such an arrangement that the ink reservoirs of each of the units is accessible to the operator.
Another object of the invention is to dispose or travel the work over an arcuate apron or on a radius so that the work will better register .with each of the stations where it is to be ma-r nipulated and also will pull away from the cut- 40 ting or printing in a better degree than were the work disposed and traveled along a straight line or in a single plane.
With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.
In the accompanying drawings:
Fig. 1 is a side elevation somewhat diagrammatic of the arrangement of some of the functioning parts of the apparatus;
Fig. 2 is a side elevation on a larger scale of the two units shown at the right of Fig. l;
Fig. 3 is a top plan View of the upper .unit shown in Fig. 2;
55 Fig. 4 is a sectional view on line llof thel 60 cutting roll and also bearer roll such as shown (Cl. i-4.81)
in both Figs. 4 and 5, which will be used in the last unit to operate upon thework;
Fig. '7 is a sectional View of the working portion of a bearer roll;
Fig. 8 is a sectional view of one form ofv a printing and cutting roll plate;
`Figs. 9 and 10 are face Views of fragmental portions of the cutting roll and the bearer roll showing the disposition of the soft and hard portions of these rolls for operation of the cutters; and
Fig. l1 -is a sectional view of the ink transfer roll and the mounting therefor taken substantially on linel l-l l of Fig. 2.
In rotary printing usually any cutting to be done on the work is performed `in a separate operation after being printed.'V Any embossing or cutting which is done at the time of the printing usually occurs while the work is traveling in a single plane or against a at plate in the reciprocating type of press printing. The present apparatus is so arranged that it may print by means of rotary cylinders and also cut at the same time as printing so that the operation of the machine may be materially speeded up and yet all of thel desired functions performed in onel apparatus. I further provide for a plurality of diferent printing units, each of which may be utilized for carrying and handling a different color so that a variety of colors may-be had in the operation of the machine; and the following is a more detailed description of the present embodiment of this invention, illustrating the preferred means by which these advantageous results maybe accomplished:
With reference to the drawings, I have shown in Fig. l a` general arrangement of the apparatus. There is a framework designated generally it! and consisting of a pair of spaced supportingv end standards Il with openings at intervals therethrough and an arcuate xed apron or supporting plate l2 located between these standards ll and upon which surface the work to be traveled rests,there being suitable openings aS i3 at spaced intervals along the apron i2 at which the different printing units operate and through which the different printing units are driven. A cushioning belt lil extends over this fixed apron l2 and is guided about the pulleys l5 and i6 and the inwardly spaced pulley il positioned to prevent the belt from passing through the last operating unit of the machine Where severing occurs, although severing may be had against this belt if desired.
The supply of the web material to be printed is indicated at I8 and is led from this reel over a guide pulley it and thence over the Xed apron l2 and belt i4 through the apparatus, which will be more fully described later, and fed by means v means (not shown) to the reeling mechanism 22 to be suitably reeled for transmittal to some other location, while the portion of the web which is unused and is designated as scrap 23 may be delivered to some container or the like for suitable disposal. A motor 25 through suitable reduction gears drives the large gear 26 from which power is supplied to the diiferent units. I
The units for operating upon the work may be of any suitable ntunber. I have here illustrated four which are designated A, B, C and D'. The units are generally alike, although they may vary in certain details, which will be hereinafter pointed out. Each consists of a frame member 30 which is pivoted to the spaced end standards Il by reason of the ears 3| extending between these standards and receiving the pivot pin 32 which is provided with a head 33 at one end and a threaded portion 34 at the other end upon which the nut having a knurled head 35 is positioned. Each of these frame members 30 may be adjusted about this pivot connection with the standards I I by means of an adjustable link designated 36 and consisting of aimember 31 pivoted to the standard and a member 38 pivoted to the frame 30, these members having a threaded connection' between them by reason of the threaded part 39 and the nut or handle portion 40 so that an adjustment of this linkage 36 may be had to swing the frame 30 about its pivot 32, to vary the space between the print cylinder and the bearer to accommodate work of dierent thicknesses.
A bearer roll designated 45 is mounted in the standards |I at the location of each of the openings I3 in the apron I2. This roll is driven by means .of a gear 46 fixed thereon which meshes with the large gear 26 operated by the motor 25. A printing cylinder or mandrel 41 is mounted on a removable spindle in the frame member 30 which is driven by means of a gear 48 meshing with the gear 46 of the bearer roll 45. Ink is supplied to the printing cylinder 41 from the ink reservoir 49 by means of a series of rolls 50, 52, 53, 54, 55, 56 and 51. This reservoir consists of a pocket formed between the roll 50 and the doctor blade 5|. This doctor blade 5I is adjusted to control the amount of ink delivered by means of a plurality of threaded members |10 which engage the `undersurface of the doctor blade as at |1| so as to force it closer to or allow .lt to be spaced a little more from the reservoir roll 50. After these members |10 are adjusted they are locked in place by wing bolts |12 that their position may be maintained and the ink supply definitely controlled.
The roll 50 rotates intermittently while the roll 52 is oscillated to alternately contact with the roll 50 and the conveyor roll 53 which in turn transmits the ink to the conveyor roll 54, thence to the inking drum 55 and from this inking drum by means of the conveyor rolls 56 and 51 to the printing cylinder. The oscillating inking drum 55 is driven by means of its gear 59 from the gear 48 through the spur gear 58, while the rolls 54, 56 and 51 are driven by frictional contact with the drum 55, the roll 53 driven by frictional contact with the roll 54, and the roll 52 driven by frictional contact with either the roll 53 or 50. A cam 60 rocks the lever arm 6| which is pivoted as at 62 and which is connected by means of the link 63 to a lever arm 64 which carries a pawl 65 to engage the ratchet teeth 66 on the ratchet guard 61 which is Xed to the shaft 68 upon which the roll 50 is mounted.
An adjustable guard 61 covers a portion of the ratchet wheel. At each reciprocation the roll 50 is moved an amount dependent on the adjustment of the guard so as to determine lthe number of teeth which are gripped on the ratchet wheel, the guard serving to cause the ratchet to slide over some teeth according to its setting. The roll 52 has a shaft 69 which is mounted in the U-shaped bearings 10, while the lever arm 1| which is pivoted as at 12 also is connected to this shaft 69 at one of its ends. A cam 13 operates the rod 14 against the action of the spring 15 tending to hold it against the face of the cam so as to swing the lever arm 1| about its pivot and rock the shaft 69 and roll 52 from contact with the roll 63 to contact with the roll 50.
y As rotary movement is transmitted to the printing drum to turn it about its pivot trunnions 15 in suitable bearings 16 a transverse movement is also given the drum by reason of the cam faces 11 and 18 which are diametrically oppositely disposed and which engage the guiding rolls 19 so that as the cylinder rotates it is also movedaxially back and forth to better distribute its printing ink, both for the reception of the same from roll 54 and the transmission of the ink to the conveying rolls 56 and 51.
Pins extend inwardly from the opposite sides of frame 30 and a bar 66 having an opening 81 receives the pin 85. These bars also each have a bore 88 receiving a spring 69 which has one end engaging the pin 95 and the other end en` gagingV an adjustable abutment 90 which is threaded in the end of the bore 88. At the opposite end of each of the bars 86 there is a bearing for the shaft 9| one of which mounts the rolls 56 and the other of which mounts the roll 51. These rolls are drawn against'the ink drum 55 by means of these springs 89, while they are rocked about their pivots by a spring 92 tending to swing these rolls away from each other, while the thumb screw 93 for roll 56, and 94 for roll 51, engaging the bars swing the roll about their pivot so that they will rmly contact the printing plate on the cylinder 41. The printing cylinder 41 is shown in more detail in Fig. 4. Here the frame member 30 is shown in which the print cylinder has its support. The cylinder or mandrel consists of a tubular member 95 which has a gear 96 at one end with va neck portion 91 having a forced fit with the tubular member 95 so as to function as a part thereof, while there is a bushing 98 having aI forced fit with the other end of the tube, as illustrated. 'I'he gear member 91 has a bore 99, while the bushing has a bore |06 for the reception of spindle |0| which ts the bore 99 and has an enlarged portion |02 for tting the bore |00. This spindle also has an enlarged portion |63 against which the bushing 98 abuts at one end while it has a head portion |94 which has a threaded pin |05 to engage the frame 39 by which its engagement may be adjustable. An adjustable bearing |08 has threaded engagement with the frame 30 as at |09 and forms an abutment for the end ||0 of the gear or body portion of the mandrel, while its bore receives the spindle |0| which is bound rmly in position by the'nut ||2 having engagement with the threads ||3 of the spindle I0 This spindle does not turn but the mandrel turns on the spindle. To mount the printing plate in position I provide a collar H4 having undercut edges H5, which collar abuts the gear 96; a backing up plate 6 engages this collar and serves as a support for the print plate I1. A
binding collar l I8 having undercut edges ||9 engages the opposite edge oi the printing plate |l'| and the whole is secured in position through a washer |20 which is urged toward the lgear end of the mandrel by means of a nut |2| having threaded engagement as at |22 with the tubular portion of the mandrel. The taper of the undercut edges binds the print plate iirmly in position.
The bearer roll is shown in more detail in Fig. 5 and is similar in many respects to the mounting of the printing cylinder. It is mounted in the standard li of the apparatus. There is an adjustable bearing |25 having threaded engagement as at E25 with the standard and provided with a bore |27 for the reception of a spindle |28. This spindle is enlarged as at |29 to extend through the bearing |30 in the opposite standard H and is provided with a head |3| which has some suitable adjustable means as at |32 for engagement with the frame |35 has threaded engagement with the threaded end |35 of the spindle |28 to bind this spindle in position. The tubular body of this bearer roll is designated |31 and has-the gear 46 provided with a neck portion |38 to extend into this tubular member with a suiciently tight t so that the two parts will turn together, While there is a bushing i3d having a forced iit with the opposite end of the tube |31 to provide a bearing for the spindle |28. A collar |40 is slid over the tube |31 and then the bearer or make ready surface lill is positioned on this tubular cylinder which is of a suicient dimension to accommodate the print plate and after which there is a spacing washer |42 provided, through which the parts are held together against the gear by the nut |53 having threaded engagement as at IM with the tube |37.
The hereinbeiore describedV print cylinder and bearer roll are such as would be used in units A, B or C, but a different pair of rolls will be used in unit D which is the last unit to operate upon the work where some cutting of the work is desired to be accomplished at the same time that the last printing and/or embossing occurs, and accordingly, I have illustrated the modification which is necessary for this cutting action to occur. The printing cylinder and bearer roll will be mounted the same as that above described. However, in place of having a collar ||4 `the collar now designated as |50 will be slid upon the print cylinder S5 and will be provided with cutting edges |5| in addition to the undercut to receive a printing and embossing platel |52 to be bound beneath the beveled surfaces |53 of the collarV |50. The binder member |54 also has the beveled surfaces |55 and a cutter |56, the same as the cutter |5|. The filling in washer |20 and binding nut |23 will be the same as heretofore. The bearer cylinder will have a washer as |40 but instead of having a plain back up surface I 4| I will provide a member |60 with recesses |6| receiving rubber bands |62 which will be opposite the raised portions |63 for embossing on the print roll, while the edges |64 of this bearer surface snugly t within and form cooperating cutting edges with |5| and |56 so that as rotation occurs any material which extends across these cutting edges will be severed by action of the cutting edge shearing against the surface |54 of the bearer roll, while the embossing will take place by reason of the raised portions |63 forcing the stock into the rubber surfaces |62 while allowing their remaining surfaces to be maintained in the gen- A nutv eral plane of the stock between these embossed portions. The usual washer |42 will be provided and binding nut |43 for this bearer roll.
Where it is desired that a perforation extend transversely of the travel of the Work for later tearing the work apart, the printing cylinder or plate will have raised portions |65 extending transversely of the travel of the work or axially of the roll, which raised portions may be interrupted at intervals and serve by means of engagement with'corresponding steel portions |65 on the bearer roll to provide points of` cuttingor perforation of this stock, it being usually desired that these cutting edges be interrupted at such points as |61 so that a continuous cut across the work is not provided, but is held together at the portion |68 of resilient material so that the work may be torn apart after the same is reeled up and transmitted to such location as may be desired.
The roll 52 is unique in some respects in that it is made up of one or more short sections |70, lll, the section |10 being larger andutilized for transferring the ink from the reservoir roll 50 to the roll 53. In other words, if I am utilizing stock which is of a width only half that ofthe printing roll, such for instance as that shown in Figs. 4 and 5, I will then transfer ink only one-half of the Width of the capacity of the machine, thereby saving ink which may be used. i
This roll is thus made up so that the larger diameter sections and smaller diameter sections may be suitably arranged upon its axis orspindle to position the large diameter section in the desired location.
The foregoing description is directed solely towards the construction illustratedbut I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to whichfthe device is susceptible, the invention being defined and limited only bythe terms ofv the appended claims.
l; In a printing apparatus, a support, an arcuate apron provided with a plurality of openings on said support, a cushioning belt trained over said apron, means for moving said belt, a web to be printed positioned on and movable with said belt, and a plurality of units each having a printing cylinder positioned at one of said openings to print on the convex side of said Web, and a bearer roll for each of said printing cylinders positioned on -the opposite 'side of said' cushioning belt and at the location ing.
2. In a printing apparatus, a support, an arcuate apron provided with a plurality of openings on said supporta cushioning belt trained over said apron, means for moving said belt, a web to be printed positioned on and movable with said belt, a plurality ofk units each having a printing cylinder positioned at one of said openof said openings to print on the convex side of said web', and
a guide adjacent one of said openings for guiding said cushioning belt out of engagement with the Web and one of said units.
3. In a printing apparatus, means toy move the web to be printed on a curvature, and a plurality ofA units for printing the work on the convex side of said web pivoted to a support, each of said units having an adjustable link f pivoted thereto and tosaid support for additionally 4supporting and adjusting each of the units to and from the work. l
4. In a printing apparatus, a support, a common gear rotatably mounted on said support,
means for rotating said gear, a plurality of units for printing the work, each unit being spaced from each other and pivotally secured on said supportl and provided with a print cylinder :and
. adjustable about its pivot to move the print cylinder to and from the work, individual impression cylinder for each printing cylinder of said units and secured to said support and each provided with a pinion gear meshing with said common gear to be rotated thereby. o
5. In a printing apparatus, a support, a common gear rotatably mounted on said support, means for rotating said gear, a plurality of units for printing the work, each unit comprising a printing cylinder having a gear thereon and ink transferring cylinders, each unit being pivotally secured on said support and in spaced relation with each other, individual impression cylinder secured to said support for each printing cylinder of said units and each provided with a gear meshing with said printing cylinder gear and with said common gear for rotating said printing cylinder and said impression cylinder.
6. In a printing apparatus, a support, a plurality of printing units carried by said support, each of said units having a frame portion carrying a printing cylinder and inking means, and means to removably mount said cylinder on said frame comprising a spindle upon which said cylinder rotates, and a locking member releasably secured to said spindle and engaging said frame for detachably securing said spindle to said frame whereby upon the release of said locking member said spindle may be disengaged from said frame and withdrawn therefrornand said printing cylinder may be then removed from said unit without disturbing other elements of the apparatus. i
7. In a printing apparatus, a support, a plurality of printing units carried by said support, each of said units having a frame portion carrying a printing cylinder and inking means, and means to removably mount said cylinder on said frame comprising a spindle upon which said cylinder rotates, said spindle having an abutment at one end for engaging a portion of said frame and threaded at its other end for releasably receiving a locking member `for detachably securing said spindle to said frame whereby upon the disengagement of said locking member from said spindle it may be withdrawn from said frame and said printing cylinder then removed from said unit without disturbing other elements of the apparatus.
8. In a printing apparatus, a support, means to move a web to be printed with relation to said support, a self-contained printing unit provided with a print cylinder for printing the work, means to pivotally mount said unit on said support, an expandable link having one end connected to said support and the other end connected to said unit, and adjustable means within said link intermediate its said ends to operatively vary the length between the endsi of said link to change the position of the unit.
9, In a printing apparatus, a support, means to move a web to be printed with relation to said support, a plurality of self-contained printing units each provided with a print cylinder for printing the work, a pivot located eccentric to the axis of the print cylinder for mounting each of said units on said support, a plurality of eX- pandable links each having one end connected to said support and the other end connected to one of said units, and adjustable means within each link intermediate its said ends to operatively vary the'length between the ends of said link to change the position of the unit and move the print cylinder to and from the work.
10. In a printing apparatus, a stationary support, an arcuate apron xed on said support, a cushioning belt trained over said apron, means for moving said belt over said apron, a web to be printed positioned on and movable with said belt, a plurality of units at spaced locations along said beltA and each provided with a rotary print cylinder for contacting and printing the web.
1l. In a printing apparatus, a stationary support, an arcuate apron fixed on said support, a cushioning belt trained over said apron, means for moving said belt over said apron, a web to be printed positioned on and movable with said belt, a plurality of units each provided with a rotary print cylinder for printing the web, means to pivotally support each of said units for adjustment as a whole about its pivot to move the print cylinder to and from the web.
l2. In a printing apparatus, a cushioning belt for backing up the work, means for moving said belt, a web to be printed positioned on and movable with said belt, a unit privided with a rotary print cylinder for printing the web, means separating the paths of travel of said belt and web after printing, and means for acting on the web alone after separation from the cushioning belt for cutting through portions of said web.
13. In a printing apparatus, a xed arcuate apron, a cushioning belt engageable with said apron for backing up the work, means for moving said belt along said apron, a web to be printed positioned on and movable vwith said belt, a unit provided with a rotary print cylinder for printing the web, means separating the paths of travel of said beltand web after printing, and means for acting on the web alone after separation from the cushioning belt for cutting through portions of said web. i
14. In a printing apparatus, a xed arcuate apron provided with an opening therein, a cushioning belt. for backing up the work engageable with said apron, means for moving said belt along said apron, a web to be printed positioned on and movable with said belt, a unit provided with a rotary print. cylinder for printing the web, said cushioning belt-passing through said opening in said apron and said web continuing along said apron for separating the paths of travel of said belt and web after printing, and means for acting on the web alone after separation from the cushioning belt for cutting through portions of said web.
l5. Ina printing apparatus, a fixed arcuate apron provided with a first opening and a second opening therein, a cushioning belt for backing` up the work engageable with said apron, means for moving said belt along said apron, a
eb to be printed positioned on and movable with said belt, a unit provided with a rotary print cylinder for printing the web, vsaid cushioning belt passing through the rst said opening in said apron and said web continuing along said apron for separating the paths of travel of said belt and web after printing, said second opening beingV located in said apron along the portion of which said web alone travels, and cutting rolls on opposite sides of the web acting through said second opening for cutting portions of said web.
CURT J. ROI-ILAND.