US2366335A - Printing machine - Google Patents

Printing machine Download PDF

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Publication number
US2366335A
US2366335A US395011A US39501141A US2366335A US 2366335 A US2366335 A US 2366335A US 395011 A US395011 A US 395011A US 39501141 A US39501141 A US 39501141A US 2366335 A US2366335 A US 2366335A
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Prior art keywords
roller
cylinder
ink
cylinders
shaft
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US395011A
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William F Huck
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R Hoe and Co Inc
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R Hoe and Co Inc
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Priority to US261480A priority Critical patent/US2300549A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/30Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301Devices for tripping and adjusting form rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/15Devices for moving vibrator-rollers

Description

6 Sheets-Sheet l TT'Y INVENTOR M/fl/fam I; HUG/Q.
lllllrll JgnfZ, 1945. w, P, nuc 2,366,335
PRINTING MACHINE Original Filed March 173. 1939 6 Sheets-Sheet 2 INVENTOR MV/fam F A UC/ Jan. 2, 1945. w. F. Huck PRINTING MACHINE Original Filed larch 13; 1939 e Sheets-Sheet 3 v INVEN TOR VV/W/am E I /UCIQ.
' Jan. 2, 1945. -w HWK 2,366,335
PRINTING mourns Original Filed March 13, 1939 e Sheets-Sheet 4 INVENTOR I M/fibm Huck.
Jan. 2, 1945. w. F. HUCK PRINTING MACHINE Original Filed larch 13, 1939 6 Sheets-Sheet 5 INVENTOR W/fl/am A/uck 3 6 413? y 'rTY w. F. HUCK PRINTING MACHINE Original Filed March 13, 1959 Jan. 2, 1945.
6 Sheet-Sheet e mom - which is a division or my oopending application UNITED STATES PATENT OFFICE William F.- Huck, Richmond Hill, N. Y.', asignorto 11.. B a 00., Inc. New York, N. Y. a corporation of New York i Original application March 13, 1939, Serial No.
' 231,480,110! Patent HID-293N549, dated Novemher 3, 19 42. Divided and this application Hay ,24. 1941, Serial No. 395,011 7 v zocmms. (Lin-P137) Y I, The invention disclosed in this application nism'shown in Figure 3 and'taken' on line 4 ct. that figure and looking in. the direction of the arrow; 1 v Figure 5 is a broken sectional viewtaken on I lineHofFigure'3;.
BerialNumber 281,480'flled March 13, 1939, relates to rotary. printing machines and more particularly to improvements in printing mechanism v I therefor. o w v Figure 6 isan end view of certain parts shown The-new and useful features and principles of in Figure 5;
.- this invention are especially a p cable to 'multi- Figure 7 shows a form cylinder and certain ink color oil'set lithographic printing machines, wherein fixed oil-tight bearings are provided for the ink distributing cylinders, and wherein cer-' tain of the inking rollers rotate about fixed centers; As it is necessaryin such typesof rotary printing machines, to occasionally separate, or trip the various cylinders and inking rollers, this invention contemplates as one of its principal objects, the provision of an improved combined and selectively 'operable trippingmechanism. Another object is to provide an improved ductor roller mounting and an. improved adjustable actuating mechanism therefor.
cylinder and ink roller Further objects include the provision of im Figure 12is an enlarged face View rollers with their bearings and cooperating mechanism' in the relation indicated by the zi8-zag' line 1-1 of Figure 8;
Figure 8.is a sectional view taken on li e H of Figure 7 Figure9isaviewsimilartoFi8ure8but showing the parts in, another position with the inking rollers in tripped position;
Figure 10 is an enlarged view partly in section takenonlinelll-ll oiFig'ure8;
Figure 11 is an enlarged sectional view taken onlinellofFigureB;
of a portion of the trippin mechanism;
It is also an object of this invention to provide a rotary printing mechanism ofgenerally improved construction, whereby the mechanism will be simple, durable, and inexpensive in construction, as well as convenienapractical, serviceable,
- o and emcientin its use.
-With,the foregoing and other objects in view,
' which will appear as thedescription proceeds, the: invention resides inthe combination and ar- 1 rangemenft of parts, and in the details of construction hereinafter described and claimed.-'
A preferred embodiment of the invention ,is
'illustrated'in the accompanying drawings, wherein: v
Figure '1 isiadiagrammatic illustration of.
multi-coior lithographic printingmachine. em-
bodying the features and principles of this in- .vention;
Figure 21s a perspective view of several of the cooperating cylinders and inking rollers of one ofthe units of the machineshown in Figure 1, certain parts being broken away and others omitted for the sake-of clearness;
k 31s an elevation partly in section of an '1 roller showing the'reciprocating mocha: nismthereior, the view being taken on' line 3 of Figures 1' and 4' looking" in-the' direction of the amw's; i v
Figure-its a view of the reciprocating mecha Figure 13 is a side view of the parts shown in Figure 12;
Figure 15 is a top plan view of another portion of the tripping mechanisman "looking in the Figure 16 he sectional viewdaken on line li-ltoiFigurelli. The-printing machine diagrammatically shown in Figure 1 comprises a plurality" of perfecting printing units= 2|, arranged to print simultaproved. locking devices for roller socket screws 1 i and the provision-of improved bearing moimt- Figure'li is a sectional view taken on lineings and supports for inkrollers. ll-ll ofFigure 13;
' direction oral-r w ll ln'mlire 1s and s neously on both sides of the web- 22 as it passes between the cylinders 23 and 24 of each unit.
The printing machine shown is of the type known as an oiiset perfecting press, but it is to be under- I stood thatthe features and principles of this in- 'vention are not to be limited to the particular type 'or printing machine herein shown; The cylinders 23 and 24in this instance are the printing or blanket cylinders and receive the impr s ion to be printed upon the web 22 from form or plate cylinders 2,5 and 28 respectively.
The respective cylinders 23-, 24, 25 and 28 are,
arranged to be driveni'rom a shaft 21, which in turnis preferablydriven by a motor '20 geared to the shaft 21 by bevel gears 29and 1l. The cylinder! 23 is drivingly connected to the shaft 21by means of a worm 32 anda' worm-wheel indicated diagrammatically'in index 24 is driven from the cylihder 23 fill-Oughgears 3i and 35, the outer peripheries of these Sears rather than their pitch lines being shown 2 aseassu in dotted lines in Figure 1. The cy1inder25 is Ink fountains 38 and 38 are provided andcona tain ink for the forms or plates on the cylinders 25 and 25 respectively, each fountain 38 and 38 having the usual rotating fountain roller 4| therein. A swingably mounted ductor roller 421s provided to take ink from each of the fountain rollers 4| and transfer it to a reciprocating ink roller 43, whereover the ink is spread by a pair of rollers 44. The ink is then transferred from the roller 43, through rollers 45 and 45, to a pair of reciprocating ink rollers 41 and 48, spaced apart about the cylinders 25 and 25.- From each of the rollers 41 and 48, the ink is carried to the plates on the cylinders 25 and 25 by ink form rollers-48 and 50.
Water fountains 5| and 52 are provided to supply moisture for the printing plates or forms, each fountain having the usual rotatable fountain roller 53 therein. A swingable ductor roller 54 carries water from the fountain roller 53 to reciprocating moisture rollers 55, wherefrom moisture is carried to and distributed on the plates on the cylinders 25 or 28 by form moistening rollers 55.
As shown in Figure .7, the reciprocating ink rollers and moisture or water rollers 41, 48 and 55 are arranged to be driven by means of suitable gearing from their associated cylinders 25 or 25,
through an idler gear 51 in mesh with the respective gears 35 and 31, and an idler gear pinion 58 rotatable with the gear 51 and in mesh with a gear 58 on one end of a shaft 50 of the respective reciprocating ink or water r'oller. Each of the swingable ductor rollers 42 and 54 are arranged to be swung in the same manner from the respective fountain rollers 4| and 53 to the respective reciprocating ink and water rollers 43 and 55, by means of a rotatable cam 5|, one of which cams is shown in Figures 1 and 2, and it will be understood that similar-operating mechanism is provided for the ductor rollers,
in the lower portion of each printing unit. The cam 5| is arranged to be rotated from the shaft of the reciprocating ink roller 41; through an idler gear 52 which is in mesh with the gear 58 on the shaft of the roller 41, and av gear'53 on the shaft of the cam 5| also in mesh with the gear The connection between the cam5l and the ductor roller 42 (see Figures 1 and 2), includes a lever 54 secured 'on a shaft 55 extending between and journaled in machine frame members 65 and 51. One of the shaft ends 58 and 58 of the ductor rollers, for instance. the shaft end 58 of the roller 42, is journaled in one arm H of the lever 54, and the other shaft end 58 is journaled in one a 12 of a lever 13, which is secured near the othe end of the shaft 55. The other arm 14 of the lever 54 is'connected'by a link 15 to an arm 18.which has an arcuate slot 11 formed therein, the'arc of the slot 11 being concentric to the pivotal point of the link 15 on the arm 14 when the ductor roller 42 is in engagement with the fountain roilef 4|. The link I5 is adjustably-connected to the arm 18 by means of a clamp screw 18' slidable in the slot 11. The arm 15 is secured on one end of a short rocker shaft 18 which is journaled in the frame member 55. An arm 8I secured on the shaft 19 50 formed eccentric to the shaft. II.
has a roller 82 on its free end which is adapted to ride on the periphery of the cam 5|. means of the link 15 and its adjustable connection with the arm 15 in the arcuate slot 11, the
5 throw of the ductor roller 42 toward the ink roller 43 may be adjusted .to vary the pressure of its engagement therewith without changing the pressure of the engagement of the roller 42 with the fountain roller 4|.
Coiled springs 83 are provided to react between studs 84 secured to the frame members 55 and 51 and the'arm 14 of the lever 54, and another arm 85 of the lever 13 to maintain the roller 82 against the cam 5|, and press the ductor 15 roller 42 toward the fountain roller 4|. A swingable catch member 85 is pivoted to the frame member 61 and is adapted to be swung'into the path of a lip 81 formed on the end of the arm 85 of the lever 13, to hold the ductor roller 42 20 out of contact with the fountain roller 4|. The
ductor roller 42 is rotatably supported in the arms 1| and 12 in a manner identical with the arrangement for supporting the form rollers 48 and 50 and hereinafter described.
The mechanisms (see Figures 1-7 inclusive). for reciprocating the ink and water rollers 43,
41, 48 and 55 are substantially identical and include the gear 58 on one end of the shaft 50 of the respective roller, and theother end 88 of this shaft 60. The shaft end -88, as best shown in Figure '3, extends through the frame member 55, in which it is journaled to rotate on a fixed axis, and into an oil-tight casing 88. A worm gear 8| is secured to'the shaft end 88 within thecasing 88 and meshes with a wormgear wheel 82 having hubs 83 and 34 journaled in the sides of the casing 88. 'Thecasing 88 is supported upon a reduced portion 85 of the end 88 of the roller shaft 50 and is reciprocated with the respective ink roller, being guided and prevented from rotating with the shaft by rollers 85 and 8 1 pivotally supported on the casing and 'disposed to engage and ride one on either side of a bar 88, secured to and extending from the frame member-55. Both ends of the ink roller shaft are journaled in roller bearings 88 secured in the frame members 85 and 51 and are adapted to rotate as well as to slide axially therein. The
50 worm-wheel 82 is provided with an eccentric bore adapted toreceive a shaft ml which is held against axial'movement therein by means of a pin I02 passing through the hub 84 and engaging a groove I03 in the shaftIOI to permit rela- 55 tive rotation between the shaft |0| and the worm-wheel 82. The shaft IN is thus eccentric to the worm-wheel 82 and has gudgeons I04 and I05 extending from its ends, the gudgeon I04 being hollow. The gudgeons I04 and I05 are A clamp bolt I05 passes axially through the gudgeon I04 and one end of the shaft IM and isscrewthreaded into ablock I01 disposed in a recess I08 provided in the shaft m. The block I01 is adapted to lock the shaft IM to the wormwheel 82 when the bolt I05 is tightened, by being wedged between an inclined bottom surface I08 of the recess I08-and the surface III of the bore in the worm-wheel 82.
A screw 2 .is screw threaded into a gudgeon I05 and secures a disc I I3in position as shown in Figure 5. The disc 3 is provided with a lug Ijja on its inner side which fits into a crossgroove I I4 formed on the end of the gudgeon I05.
The disc |I3 has a hexagon-shaped boss I|3b on assasss its outer side and it will be understood that by to a member II'Ilfsccured to the frame member 86. Thepivots II1a are in alignment and they are preferablyso positioned that their axis intersects the axis of the shaft end 88. By means of the above described roller reciprocating mechanism, the reciprocating ink and water rollers are given an' axial reciprocating movement whenever they are rotated through the gear 58. This movementis due to the rotation ,of the gudgeons I04 and I05 about the axis of applying a suitable wrench to the hexagon boss,
shoulder I23 to engage the pin I25. The long arm I38 of the lever I34 has a sleeve |4I (best shown in Figures 12. to 14) secured thereto by a nut I42 and has a handle I43 upon its free end. The sleeve I is slidably mounted on a rod I44 and disposed in an'elongated opening I46 formed in a frame I45. The rod I44 passes lengthwise through and is secured to the'frame I by nuts I41 and I48. The sleeve I is disposed between collars I49 and I6I which normally abut against shoulders I52 and I53 respectively providedon the frame I45 and which extend inwardly from the sides of 'the opening I46. Springs I54 and I56 coiled about the rod I44 react between the collars I49 and I5I and the respectively adjacent ends of the opening I46.
Movement of the rod I44 to the left will swing the lever I34 and relieve the pressure of the spring I38 against the-lug of the arm I33. The arm II8 will then be swung downward by gravity and the catch shoulder I24 will engage thepin I26 and trip the cylinders-oil? impression" as the worm-wheel 92, whereby the lever H5 is rocked upon its pivotal connection with the link I.I| and slides the casing 89 along thebar 38 and the shaft-.60 of the reciprocating ink and water rollers axially in its bearings in the frame members 66 and 61. By adjusting the eccentricity ofthe gudgeons I64 and I05 relatively to the worm-wheel 32. the length of the stroke of the respective roller may be varied. Due to-the ,novel arrangement of cranks and levers, the
pivotal connection at which the thrust- 0f the lever H5 is applied to the link Ill, moves in an elliptical path and the force is exerted with much of which is pivotally mounted'on a crank pin II6 extending from and eccentric'to a shaft end I2I hereinafter described.
As shown in Flgurel, the rod I44 extends'along the side of all of the units 2|. On one of the units therod I44 passes, through a guide M411 and collars H417 and H40 are secured to the rod on either side 'of the guide, A spring 411 is placed upon the rod I44 between the guide I440 and the collar I440 and acts to force the rod I44 to the right asshown in the drawings, to the extent permitted by the collar I44b.
A switch I56 and conductors I51 provide means to energize a solenoid" I 58 or like deviceyto actuate a bell crank I59 and thereby move the rod I44 towards the leftas shown in the drawings, and simultaneously rock the shafts I3I of all of the units 2I in the proper direction to trip the cylinders and form rollers ofi impression." If, howso ever, any of the levers I39 are locked in eitherthe the rod I 44 by the solenoid.
of the lower printing or blanket cylinder 24. The
other end I22 0f the arm H8 is provided with catch shoulders I23 and I24, one on each side edge thereof. The catch shoulders I23 and I24 are adapted to engage pins I25 and .I26 respectively between which the arm IIBcan be swung.
The pins I25 and I26 extend between spaced apart bars I21 and I28, the bar I21 having a squared end I29 adapted to receive a wrench, and the bar I28 being secured on the end of a y, and I26 by the catch shoulders I23 and I24 is controlled includes links I32 connected to the. end I22 of the arm II8and to the free end of an arm I33 pivotally supported on the frame member 66. Th arm I33 is connected to a lever I34 by a rod I35 which is pivotally connected to a short arm. I36 of the lever I34 and extends to and through a lug I31 on the arm. I33. A spring I38 is coiled about the rod I35 and reacts between it and the lug I31 to constantly urge the arm I33 in a direction to maintain the arm H8 in position for the shaft I 3I which extends between and is journaled impression on or impression off position, they obviously will not be affected by the movement of The means whereby the various rollers and cylinders are simultaneously tripped. in the directions indicated by the arrows I in Figure 1, when the shaft I3I is rocked-in a counter-clockwise direction includes arms I 6|, (Figure l) secured on the shaft I3I, (Figure 2) and links I62 (Figure 1 pivotally connected to the arms I 6| andbeing secured to and extending to lugs I63 provided on -rings I64 which are secured to the hubs I65 06 bushings I66.
The bushings I66 are mounted in the frame members 66 andtl'and support the bearings I61 of the upper blanket cylinder 23. The bushings I66 are arranged eccentric to the-bearings I61 so that-rotation of the bushings I 66 will raise the axis of the cylinder 23 and separate its peripheral surface from thecooperating peripheral surface of the lower blanket cylinder 24. The form and operation of the rings "I64 and the eccentric. bearing supporting bushings I66 shown in operative position in respect to the cylinder 23, is similar to that-efi rings I68, (see Figure '1), which are secured to'the hubs I69 of eccentric bearing supporting bushings "I and support the bearings I13 of the form or plate cylinders 25 and 26. The rings I68 are connected by horizontal links I14 (see Figures 2 and '1). to vertical links I15 at a point I16 spaced from the upper end of the links I15. j
The lower ends of the links I15 are connected *ny bars I11 to arms I18 secured on a shaft I19 which extends between and is journaled in the l which are secured one on each end of a tubular shaft I84 by screws I85. The tubular shaft I84 is rotatably mounted on and supported by a shaft I88 extending between and joumaled in the frame members 66 and 81. A coiled spring I81 is provided to react between the arm I82 and a stationary stud I88 extending from the frame member 66 to resist the rotation of the tubular shaft I84 to rock the bushings Ill, and to separate the formcylinders 25 and 26 from the blanket cylinders 23 and 24 respectively. The spring I81' also similarly acts to resist rotation of the tubular shaft in the opposite direction after it has been movedto trip the cylinders as described. Thev arm I 83 has an extension I89 which is provided with a tool receiving socket I9I by which it, and through the hollow shaft I84, the arm I82 may be rotated to turn both bushings I1I simultaneously.
A spring and ball locked pin I 92 is provided in the extension I89 and arranged to be inserted in an opening I93 provided in an arm I94 to lock the arm I83 and the arm I94 together.
The arm I94 is rotatably mounted on the end of the hollow shaft I84 adjacent .to the arm I83 and has an extension I95 to whichlinks I98 are pivotally secured. The links I96 extend from the extension I95 to an arm I91 secured on the shaft I3I adjacent the frame member 61. Rocking movement of the common rock shaft I3I will, through the links I98 and arm I94 (when the pin I92 is in position to lock the arms I83 and I94 together), rock the hollow shaft I84 to cause the cylinder 25 to be separated from the cylinder 23.v
This rocking movement of the shaft I3I' will also cause the cylinder 23 to be separated from the cylinder 24 by turning the bushings I66 through a the arms I6I, the links I62, and the rings I64 in a similar manner. When the pin I92 is withdrawn from the arm I94, only the form cylinder 25 will be moved to separate it'from the blanket cylinder 23, when the arm I83 is turned by a tool inserted in the socket I9I.
The handle I8I is used to adjust the impression ressure, or the degree of engagement of the form on the cylinder 25 with the blanket on the cylinder 23, and a scale I98 and a handle locking means I99, (shown in Figure 2), is provided to indicate such adjustment and to lock the handle I8I in its adjusted position. When the handle I8I is locked in position, the shaft-J19 is held stationary and the arms I18 through the links I11 hold the lower ends of the links I15 to insure movement of the bushings "I as above described by rocking movement of the hollow shaft I84. 1
The means whereby the form inking rollers 49 and 58 are tripped or separated from the form cylinders 25 and 26 respectively, includes sleeves 28! (see Figures '7 to 9), rotatably mounted upon the hubs I69 of the bearing supporting bushings HI, and which are connected by links 282, each secured at one of their ends :tolugs 288 provided on the sleeves 28I, and at their other ends to arms 284 and 285 (shown also in Figure 2), which are secured one at each end of the shaft I88 adjacent the frame members 68 and-81 respectively. A coiled spring 286 isv provided and arranged to react betweenthe am 284 and the stationary stud I88 to resist rotation of the shaft 8 to rock the bushings 28I.
The arm :05 has ascasss 284 may be rocked to simultaneously rock the sleeves 28I. A spring and 'ball locked pin 289 is provided in the arm I94 and is arranged to be inserted in an opening 2 provided in the extension 281 to lock the arms 285 and I94 together whereby the sleeves 28I will be rocked whenever the shaft I3I is rocked.
The sleeves 28I are each provided with a cylindrical surface 2I2 (shown in Figures -'1 to 9) eccentric to its axis and to the hub I69. A ring 2 I3 is rotatably mounted upon each eccentric 2 I 2 and is retained against rotation by links 2I4 pivotally connected at one end to the adjacent frame member 88 and 81 respectively, and at their other ends to 9. lug 2I5 provided on the respective ring 2I2. The rings 2I3 are held against the side frames by screws 2I8, screw-threaded into the adjacent frame member 66 or 61, elongated openings 2" being provided in the rings 2I3 to permit their movement in the general, direction of the arrow I88, when the sleeve 28l is turned.
Arms 2I8 and-2I9 (see'Figures 8 and 9) pivoted at their adjacent ends-to the rings 2I2 (intermediate the ends of the form inking rollinto which-an adjusting. screw 223 is screwthreaded. The screws 223 are rotatably mounted in lugs 224 (see Figure 10), which are pivotally mounted in the ring 2I3. The screw heads 225 are under constant urge away from the lugs 224 by coiled springs 228 arranged to react between one side of the lugs 224 and the respective screw heads 225. A stop nut 221 screw-threaded on each-of the screws 223 is pinned thereto and engages the other side of the lug 224. The springs 228 resiliently maintain the remote ends 22I of the arms 2I8 and 2I9 in their adjusted position. V
The arms 2I9 and 2I 8 are connected by links 228 to split ink roller sockets 229 and 23I respectively, and these sockets 229 and 23I are carried on arms 229a and23 Ia respectively, each of these arms being rotatably mounted upon the inner end of a supporting sleeve 238 disposed one at each end of they roller 48 and which also act to secure the roller bearing 99 in position. The
sleeves 232 which are eccentric to the axis of the rollers 49 and 58 and have a central portion reduced in 'diameter so as to form what may be termed a dumb-bell shaped bearing. The sleeves 232 are clamped in the respective bracket 229 and 23I by a clamp screw 233 which acts on'a swings able cap 234 in the usual manner. A roller bearing 235 (see Figure 7), is disposed in each of the ends 236 and 231 of the sleeves 232. Rotation of the sleeves 232 will adjust the respective roller 49 or 58 in respect to the reciprocating roller 48 and the amount of this adjustment is indicated by comparison of a dial and pointer 248.
A vertically extending rod 238 (see Figures 1 are and 2), is connected at its lower end to the aged from the form.
extension 291 of the arm 235 (see also Figure 16), and at its upper endto one arm 239 of a bell crank 24I pivotally secured to the: frame member, 51 by a screw 242. The other arm 243 or the bell crank 2 is connected by a horizontal rod 254. The pin 252 may be drawn into the arm I39 by pulling upon the'handle I43 and then 1 slightly rotating it to move the hol 255 pro- 244 to the catch member 35. The rod 244 passes through alug 245 provided on the catch member 55. Springs 245 and 241, one on each sideof the lug 245, react between this lug and collars 249 and 249 respectively, which are secured to the rod 244. The catch member 85 is pivoted to the frame member 51 b a screw 25I and is adapted The mechanism employed to trip the printing cylinders and inking rollers, and the ductor roller operating mechanism of the upper portion of each of the printing units 2I are shown in Figure -2. Although not shown in the drawings, it will be understood that tripping mechanism to'be swung into the path of thelip 81 on the similar to that shown in Figure 2, is employed for moving the form cylinders 25 away from their ping the form rollers away from the form cylinders 26; also that additional mechanism similar to that depicted in Figure 2, is provided for operating the ductor rollers and other members that are duplicated in the lower portion .of the printing The mechanism for tripping the cylinders and ,rollers in the lower portion of each unit is operated by a second arm" I91 notshown, but also secured on the shaft I3I, and connected to the tripping mechanism in substantially the same manner as that shown for the upper portion of the unit. a
During the time that the press is being made ready for a run, and especially when several men are each working on difierent units of the press, it is desirable that mechanism be provided whereby the operator of any unit can so i set the tripping mechanism that the unit will be tripped on impression and b locked ther so the impression cannot be tripped "off" by an operator on any of the other units, and also, it is desirable that mechanism be provided whereby the operator can set the tripping mechanism of th unit on which he is working, to trip the impression 011" and it-will 'belocked there and the-unit will be held off impression-until it is unlocked' Manually operated means is provided to separately lock each of the levels I34- (see Figures '2, 12 and 13) in a osition to trip the cylinders and rollers of any unit 2I on impression, and to lock them in such tripped position, and these means also provide for tripping ofl impression, the cylinders and rollers of any-unit and locking them in such tripped position. These means include a spring pressed vided therein, out of alignment with a pin 255 secured in the arm I39 and protruding therer from. This operation will hold the pin 252 in inoperative position and the lever I34 will be free and can be swungJiy' the solenoid I53,
through the rod m. It will be, understood that the lever I39 may beswu'ng'to bring the pin 252 into alignment with the hole 253 and by then turning the handle I43 to bring the hole Assuming that the printing machine is in operation and for some reason it is desired to trip or separate the movable blanket c linder 23 from the other blanket cylinder 24, ders 25 and 25 from their cooperating blanket cylinders, and the inking rollers from their respective form cylinders on all of the units 2I simultaneously, an operator closes the switch I56 to energize the solenoid I58. Energization of the solenoid I58 will, through the bell crank I59, push the rod I44 to the left in Figure 1 to compress the springs I 55, whereupon pressure will be exerted to turn the lever I34 from its normal neutral position to wing the reciprocating arm II8 ofeach unit I in the proper direction to cause the catch shoulder I24 to engage the pin I25 and rock the shaft I3I counter clockwise in Figures 1 and 2. This rocking movement of the shaft I3I will simultaneously rock the eccentric bushings I55 to trip all of the blanket cylinders 23, and through the link I95 rock the arm I94. As the pins I92 and 209 are both inserted in their respective openings I93 and 2 in the arm extensions I95 and 291 respectively when the machine is in operation, rocking movement of the arm I94 will simultaneously rock the eccentric-bushings HI and l the sleeves 2M, tripping all of the form cylinders 25 and 25 to separate them from the respective blanket cylinders 23 and24 and all of the ink iorm rollers to separate them .from the form cylinders 25 and 25. At the same time that the,
cylinder 23 of one of the units- 2|, the pins I92 and 299 are withdrawn and the shaft I3I may be rocked by a wrench applied to the wrench pin 252 (Figure 13) which is slidably mounted in .ed to receive the pin 252 and lock the lever I34 in the above-mentioned positions respectively. In Figures 2, 12 and 13, the lever I34 is shown locked in the impression on" position, with the pin 252 of the arm I33 extending into the hole 75 25. and this is accomplishedby withdrawing the lug I29. By withdrawing only the pin 209 and leaving the pin I92 in looking position, theform cylinders 25 and 25 may be tripped simultaneous- '1 with the blanket cylinder 23 of the selected e form cylinlysdiusted byr r ment with pin :09 and rocking the shaft I85 by a mi inserted in the socket 208. a
From the foregoing, it. will be understood that the printing impression may be manually tripped a wrench applied on its squared .end I29. Any
of the form cylinders may be disengaged from its coacting blanket cylinder by withdrawing the pin I 92 from its locking position and turning the socket I91, and the :torm rollers in any printing unit may beseparated from the form. by withdrawing the pin 209 from its locked osition and rotating the shaft I86 by a toolv inserted in the socket 208.. a
In "machines of this kind as heretofore constructed, the inking rollers have been carried on vertically movable plates or light frame members, by means of which they are lifted from the form, usually by cam mechanism, and when the rollers are lowered into engagement with the form they are held in contact with it by gravity,
thus allowing the rollers a certain amount of freedom which permitsthem to bounce as they are engaged and disengaged from the plate or :form as it passes under them. with the eccentrically controlled roller operatingmechanism as herein disclosed, th rollers are positively held in both the non-e and in the engaging,
assasss parting from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, and it will 'be further understood that each and every novel feature and combination present in or possessed v by the mechanism, herein shown and disclosed, the sleeve I84 by means of a bar inserted in I forms a part of the invention application.
What I claim is:
1-. In a printing machine, a blanket cylinder, a form cylinder, and means to apply a liquid to a form on the form cylinder, said means includingja first roller adapted to rotate about a fixed axis, a second roller in running engagement with the first roller and the form, and mounted to swing about the axis of the first roller, to be disengaged from the form, means including supporting bushings for the form cylinder to trip the form cylinder out of engagement with the blanket included in this fcylinder, and means including sleeves mounted positions and a much smoother and positive action' results. 7 A
Form inking rollers used in machines 0! this kind have heretofore been rotatably supported in roller sockets secured to the frame members,
and while screw adjusting means for positioning these sockets to give the desired contact pressure of the rollers were provided, adjusting one of these sockets, required first the loosening oi one ormorebolts whichsecuredthe socketto the frame, then adjusting one or more adjusting screwstoregulate thepressureandfinallytight- -eningthebolts. Itwillbeseenthatwiththe arrangement herein disclosed, theadiustment of any form roller socket with relation to the form cylinder is eflected by turning but one screw which is automaticall locked in positlon.
In order to provide forlvariation in the di- I ameter of the ductor roller, the mechanism for rting swinging ucto 'll ammo and the d r m am pm to cooperate with one of the blanket cylinders,
vides means :toradiustingthe axial distance ofthe ductor roller from the fountain roller by rotation of the eccentric bushings in. which the on the said supporting bushings and connected to the form cylinder tripping means to swing the second roller out of contact with the form when the form cylinder is tripped.
2. In a printing machine, a pair of cooperating blanket cylinders, a form cylinder adapted to cooperate with one of the blanket cylinders, and mechanism to apply a liquid to a form on said Iorm cylinder including a first roller adapted to rotate about a fixed axis, a second roller in running engagement with theiirst roller and the form, and mounted to swing about the axis of the first roller to be disengaged from the form while engagement with the first roller, a first means to trip one of said blanket cylinders out of engagement with the other,
means acting simultaneously with said first means to trip the form cylinder out of contact with the blanket cylinder which it engages, and
means connected to the form cylinder tripping means to swing the said second roller out of contact with the form whenthe form cylinder is 3. In a printing machine, a pair of cooperating blanket cylinders, a form cylinder adapted and mechanism to apply ink to a form on the form cylinder including an ink supply roller,
I a ductor roller, a. train'oi. rollers having a first roller which receives ink from the ductor roller preciatethatthisllasimpleriormofadiustand finishing swin in movement obtained usually bytheduotorrollerswinging empl yed in Where reierenoc is hereinafter made to "mechanism tor-applying liquid to a form," the term I ment'than those-heretofore known. Further while the'ductor roller is in contact with one of thcothcroithsrollers betweenwhichit swings,
and transfers it to another roller of the train, means to swing the ductor roller into contact al-' ternately with the ink supply roller and with the first roller, means for supporting a second roller otthetraintorotateaboutafixedaxiaathird roller mounted to swing about the axis 01 the second roller to (engage the form and transier the liquid from the second roller thereto, a third means to trip one of the blanket cylinders out of contact with the other, means acting slmultm.
neously with thethirdmeans to trip the form cylinder out of contact with the blanket cylinder which it engages, means connected to the term cylinder tripping means to swing the third roller out of contact with the form when the form cylinder is tripped, and means to restrain the swinging action oi the ductor roller when the :hird must a mu out a contact w s v "4. Inaprinting machine, apairotcoo ting blanket cylinders, a tormo-cylinder adap to cooperate with one the blanket cylinders, and mechanism to apply ink to a form on the form cylinder including an ink supply roller, a ductor roller, a train of rollers having a first roller which receives ink from the ductor roller and transfers it to another roller of the train, means to swing the ductor roller'into contact alternately with the inkvsupply roller and with the first roller, means for supporting a second roller of thetrain to rotate about a fixed axis, a third rolled mounted to swing about the axis of the second roller to engage the form and transfer ink from the second roller thereto, a third means adapted to trip one of the blanket cylinders out of contact with the other, means acting simultaneously with the third means to trip the form cylinder out of contact with the blanket cylinder which it engages, means connected to the form cylinder tripping means to swing the third roller out of contact with the form when Y the form cylinder is tripped, means to restrain the swingin action of the ductor roller when the third roller is swung out of contact with the form, and means to actuate the third means and the last mentioned tripping means separately.
1 5. In a printing machine, a pair of cooperating 30 blanket cylinders, a form cylinder adapted to carry a form in engagement with one of the blanket cylinders, a first means to trip one of the blanket cylinders out 01' contact with the other, a second means to trip"the form cylinder out of contact 'with the blanket cylinder contacted thereby, an axially reciprocating ink transfer-cylinder rotatable about a fixed axis, a roller in contact with the reciprocatingcylindcr and the form, a third means to trip the roller out oi contact with the form, and selectively operable means to connect the first and second tripping means ior simultaneous operation and to connect all of the tripping m neous operation.
6.. In a printing machine, a form cylinder having a form thereon, an ink roller, a form roller, bearings for the ink rollerwhereby it may be rotated on a fixed axis, means for supporting the form roller in running engagement with the ink roller and for bodily moving the .iorm roller into eans for simultaand out of engagement with the form, including first arms supported to swing about'the axis oi the ink roller, the said first arms being iurnished with adjustable Supports for the bearings ofthe form roller whereby form rollers of various diameters may be used and the bearings adJusted to bring the form roller into engagement with the ink roller, a movable tripping member, secand arms adjustably secured to the tripping member and movable toefiect proper engagement of form rollers of various sizes with the form, means connecting each of the first arms with one o! the second arms whereby when the tripping member is moved, the form roller is 65 moved out of engagement with the form.
7. In a printing machine, a form cylinder having a form thereon. a blanket cylinder, means including supporting bushings tor the term, cylindex" for bodily moving the term cylinder to separate it from the blanket cylinder, an ink roller supported to rotate on a fixed axis, a form roller in running engagement with the ink roller and with the form, and means including sleeves mounted on the said supporting bushings to disa. Inaprinting machinepans: printing 5' ylinders between whichasheet is led, a form cylinder adapted to carry a printing iormin engagement with one of the printing cylinder-a a first means to trip-one oi the printing cylinders ,out of contact with the other, a second I means to trip the form cylinder and' move the form out of contact with the. printing cylinder which it engages, an ink cylinder rotatable'about a fixed axis,xa-iorm roller in contact with the ink cylinder and the i'orm, means .tow trip the form roller out of contact with the form,
and selectively operable means to connect the first and second tripping means for simultanii ous operation and alternately to connect allior the tripping means for simultaneous operation. 9: In a printing machine having a plurality. of
printing units, each unit having printing cylinders, meansior tripping'the printing cylinders to printing position and to non-printing position, an electrically operated rod for simultaneously tripping the cylinders of all the units to printing and to non-printing positions, means for locking the tripping means-oi any unit in printing position and alternately in non-print ing position, and'means including a yielding connection between the electrically operated rod and the locking meanswhereby the cylinders of the units that are not locked can be tripped though the cylinders of other, units may be 10. In a printing machine having a plurality of printing units, a tripping control mechanism for each unit including a control member having means to look it in a trip .on position and also in a trip 011" position, operating rod connected by a yielding connection to all of the control members, and electrically controlled means to move the operating rod and thereby operate each control member that is not locked.
11. In a printing machine having a plurality of printing units, a tripping control mechanism for each unit including a control memberhaving means to lock it in a trip on" position and also in a trip "off position, and an operating rod connected by a yielding connection to all of the control members whereby the control members that are not locked may be actuated.
12. In a tripping mechanism for a printing "machine having a first cylinder supported to rotate on a movable axis whereby it may be separated from a second and cooperating cylinder, an ink roller supported to rotate on a fixed axis, and an inking roller in running engagement with the first cylinder and the ink roller to transfer ink from the latter to the for mar; meansincluding rotatable supporting bushings to move the axis of the first cylinder, and means including sleeves mounted on the said rotatable supporting bushings and actuated by the first cylinder axis moving means to swin the inking roller about the fixed axis of the ink roller to disengage the inking roller from the first cylinder.
13. In a tripping mechanism for a printing machine having a first cylinder supported to rotate on a movable axis whereby it may be separated from. a second and cooperating cylinder, an ink roller supported to rotate on a fixed axis, and an inking rollerin running engagement with the first cylinder and the ink 7 roller to transienink from the latter to the fixed axis of the ink rollerand upon which the inking roller is carried, means including rotatable supporting bushings to move the axis of the first cylinder,
- an ink roller supported ,to rotate on a fixed axis,
and an inking roller in running engagement with the first cylinder and the ink roller to transfer ink from the latter to the former; means including rotatable supporting bushings to move the. axis of the first cylinder, means including sleeves former; an arm mounted to swing about the der, an ink roller supported to rotate on a fixed axis, an inking roller in rimning engagement with the first cylinder and the ink roller to transfer. ink from the latter to the former, means to axially reciprocate the ink roller, a ductor roller to supply ink to the ink roller, means to swing the ductor roller into and out of engagement with the ink roller, and means to catch and hold the ductor roller out of engagement with the ink roller; means to move the axis, of the first cylinder, means actuated by the first cylinder axis moving means to swing the inking roller about the fixed axis of the ink roller to dis-= engage the inking roller 'from the first cylinder. and means connecting. said inking roller swinging means with the ductor roller catching and holding means to actuate it to hold the ductor roller out of engagement wit the ink roller when the axis of the first cyl nder is moved to mounted on the said supporting bushings to swing the inking roller about thefixed axis of the ink roller to separate the inking roller from the first cylinder, and means -to'connect said cylinder axis moving means and said inking roll- Y er swinging means whereby they will act simulta-' neously. Y
15. In a tripping mechanism. for a printing machine having a first cylinder supported to rotate on a movable axis whereby it may be separated from a second and cooperating cyiinder,anink roller supported to rotate on a fixed axis, an
inking roller in running engagement the first cylinder and the ink roller to transfer ink from the latter to the former, a ductor roller to supply ink to the ink roller, means-to swing the ductor into and out of engagement with the ink roller, and means to catch and hold the ductor roller out of engagement with the ink roller; means tomove the axis of thefirst cylinder, means actuated by the first cylinder axis moving means to swing the inking roller about the fixed axis of the roller to disengage the inking roller from the first cylinder, and -.means connecting said inking roller swinging means with the ductor roller-catching and holding means to actuate it to hold the ductor roller out or engagemnt with the inkroller when the axis'of the first cylinder is moved to separate this cylinder iromthe second cylinder.
16. In a tripping mechanism for a printing .machine having a first cylinder supported ,to rotate on a movable axis whereby it may be axis, an inking roller in running engagement separate this cylinder from the second cylinder.
18. In a tripping mechanism for a printing machine having a pair of cooperating blanket cylinders, one being movable and the other mounted on a fixed axis, and a form cylinder cooperating with each of the blanket cylinders; means to trip the movable blanket cylinder away from the cylinder'having a fixed axis, a rock= able member actuated by the tripping means, and means detachably connected to the rockable member to trip each of the form cylinders away from its cooperating blanket cylinder simultaneously with the tripping of the blanket cylinder.
19. In a tripping mechanism for a printing machine having a pair of cooperating blanket cylinders, one being movable and the other mounted on a fixed axis, a form cylinder cooperating with each of the blanket cylinders, a first roller adapted to rotate about a fixed axis, a
second roller in engagement with thefirstroller and with a form on the form cylinder,-
; ber actuated by the tripping means, means detachably connected tothe rockable member to trip each of the form cylinder ,away from its cooperating blanket cylinder simultaneously with the tripping of the movable blanket cylinrder, and means detachably connected tofthe w rockable member to trip the second roller away with the first cylinder. and the ink roller to.
transfer ink fro the latter to the former, and
means to axia y reciprocate the ink roller;
means including supporting bushings to move the axis oi! the first cylinder, and means including rotatable sleeves supported on the said supporting bushings and actuated by the first cylinder axis moving means to swing the inking roller about the fixed axis of the ink roller to disen-. n
nose the inking rollen from the firstcylinder. 17; In a tripping mechanism for a printing I machine having a first cylinder supported to rotate on a movable axis whereby it may be separated irom a second and cooperating'cylinfrom the form on the form cylinder si'multane-' ously with the tripping of the movable blanket cylinder and the form cylinders.
20. In a, tripping mechanism for. a printin machine having a formcylinde'r with a form thereon,-a blanket cylinder, an ink roller supported to rotate on a fixed axis, and a form ink-.-
ing roller in running engagement with the ink roller and with the form;- means including supj' porting bushings for bodily moving the form" cylinder to separate it from the blanket cylin-.
der, and means including sleeves mounted on the said supporting bushings to swing the form inking roller about the fixed axis of the ink roller .to disengage the form inking roller from the term when the form cylinder is moved to separate it from the blanket cylinder.
'wnnmur.
US395011A 1939-03-13 1941-05-24 Printing machine Expired - Lifetime US2366335A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594214A (en) * 1948-11-22 1952-04-22 Ras Max Roller trip for printing machines
US2653537A (en) * 1950-05-16 1953-09-29 Miehle Printing Press & Mfg Form roller and cylinder tripping mechanism
US3191529A (en) * 1962-05-02 1965-06-29 Schnellpressenfab Heidelberg Successive interruption for letterpress printing machines
US3633503A (en) * 1969-06-20 1972-01-11 Miehle Goss Dexter Inc Drive and interrupter arrangement for rotary offset press
US3785287A (en) * 1968-06-17 1974-01-15 H Dahlgren Sheet interrupter
US3814014A (en) * 1968-06-17 1974-06-04 H Dahlgren Inker
US3847079A (en) * 1972-05-04 1974-11-12 H Dahlgren Method of printing sheets
DE19756990C2 (en) * 1997-12-20 2000-01-20 Koenig & Bauer Ag Double-sided printing machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594214A (en) * 1948-11-22 1952-04-22 Ras Max Roller trip for printing machines
US2653537A (en) * 1950-05-16 1953-09-29 Miehle Printing Press & Mfg Form roller and cylinder tripping mechanism
US3191529A (en) * 1962-05-02 1965-06-29 Schnellpressenfab Heidelberg Successive interruption for letterpress printing machines
US3785287A (en) * 1968-06-17 1974-01-15 H Dahlgren Sheet interrupter
US3814014A (en) * 1968-06-17 1974-06-04 H Dahlgren Inker
US3633503A (en) * 1969-06-20 1972-01-11 Miehle Goss Dexter Inc Drive and interrupter arrangement for rotary offset press
US3847079A (en) * 1972-05-04 1974-11-12 H Dahlgren Method of printing sheets
DE19756990C2 (en) * 1997-12-20 2000-01-20 Koenig & Bauer Ag Double-sided printing machine

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