US2818805A

US2818805A - Roller socket mounting for printing machine ink mechanism

Info

Publication number: US2818805A
Application number: US427728A
Authority: US
Inventors: Charles A Harless; Jr Burton C Polglase
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1954-05-05
Filing date: 1954-05-05
Publication date: 1958-01-07
Anticipated expiration: 1975-01-07

Description

Jan. 7, 1958 c. A. HARLESS ETAL ROLLER SOCKET MOUNTING FOR PRINTING MACHINE INK MECHANISM Filed May 5, 1954 2 Sheets-Sheet 1 Mar/e: ,4 Mr/w; 6

n 7, 1958 c. A. HARLESS ET AL 2,818,805

ROLLER SOCKET MOUNTING FOR PRINTING MACHINE INK MECHANISM Filed May 5, 1954 2 Sheets-Sheet 2 1511/1012 6. Poly/ass, J"?

IN V EN TORS Aim/var ROLLER SDCKET MOUNTING FOR PRINTING MACHINE INK IVIECHANISM Charles A. Harless, Riverside, Conn., and Burton C. Polglase, In, White Plains, N. Y., assignors to R. Hoe & Co., Inc., New York, N. Y., a corporation of New York Application May 5, 1954, Serial No. 427,728

13 Claims. (Cl. 101-348) This invention relates to roller socket mountings for the inking mechanisms of printing machines.

A variety of rollers are used in the ink motions of printing machines, both as form rollers for inking a plate cylinder and as transfer and distributing rollers in the train of drums and rollers which lead from the ink pump or fountain to the plate cylinder. A close adjustment of axial distance from a cooperating drum or drums is required and, in the case of some offset presses, a movement of the rollers for tripping them off the plate cylinder.

The general object of the present invention is to provide an improved roller mounting for a roller cooperating with two cylinders. Further objects include the elimination of sliding adjustments and the provision of a very solid mounting which does not require location by attachment of brackets to the machine frame.

In the drawing:

Fig. 1 is an end elevation view, with frame structure omitted, or section on the line 11 of Fig. 2; and

Fig. 2 is a developed sectional view taken on the axial planes as indicated by line 2-2 of Fig. 1.

Only the plate cylinder and two cooperating form rollers and ink drum are shown, as any suitable train of drums and rollers for supplying ink from the ink pumps or fountain and ductor roller may be used. Also, it will be understood that more than one arrangement such as shown may cooperate with a single plate cylinder and that the arrangement shown may, in the case of offset presses, be used for supplying either ink or water.

Plate cylinder is inked (or moistened) by form rollers 11, 11 from reciprocating drum or vibrator 12, which in turn is supplied with ink (or water) by a train of drums and rollers 13 etc. The initial drum of this train may be supplied in any convenient manner, as by means of an ink pump or fountain and ductor roller.

The machine frame slidably supports drum 12 in bearings 21, the drum being rotated and reciprocated axially in the usual way, by mechanism not shown.

Rollers 11 and 11' are supported for swinging movement about the axis of drum 12 and are tripped and ad justed in position relative to drum 12 and plate cylinder 10 by parts which are similar for the two rollers and identified by similar reference numerals, apart from the presence or absence of a prime sufilx. The following description will therefore be given with reference to roller 11, but will apply equally to the roller 11.

A sleeve is fixed in a bore 26 in frame 20, concentrio with drum 12 and is generally spaced from the shaft 27 of this drum. The inward end of the sleeve 25 may fit shaft 27, apart from a small clearance to permit the shaft movements, so as to provide an oil closure or seal. The outside of sleeve 25 has a reduced concentric section carrying a pair of

eccentric bushings

28, 28, which are held in place axially of the sleeve 25 by a shoulder 29 and end plate 30, bolted to the sleeve.

Each bushing 28, 28' has an

eccentric part

31, 31 and shoulder 32, 32', the

shoulders

32, 32 facing each hired States Patent 0 "ice other to form a space for receiving

straps

33, 33 which support the rollers 11, 11'.

Each bushing 28 also has a worm wheel sector 35, concentric with' the eccentric part 31, formed in or attached to its periphery and which meshes with a worm 36 by means of which the bushing 28 is angularly adjusted. Strap 33 carries a pair of blocks or poppets 37 in which the worm 36 is rotatably journaled and axially positioned by a spring 38 holding the enlarged center section of the worm. Worm 36 is equipped with a head 40 for turning by a wrench, and turning this .Worm r0,-

tates eccentric bushing 28 (the strap 33 being held against rotation about the axis of shaft 27 by mean later described), thereby varying the distance of the worm axis and attached strap 33 from the axis of shaft 27.

The end of strap 33 forms one jaw of the roller socket which is completed by a complementary jaw 46 pivotally attached by links 47 and adjustably and releasably held in position by a screw fitting 48 of usual type. The

bearings

50, 50 for rollers 11, 11 have a flanged spool configuration, as shown, and are removably held by the

jaws

45, 45' and 46, 46'. I I

The mounting for roller 11, as thus far described, holds the roller 11 at a fixed axial distance determined by the adjustment of worm 36 but permits it to swing about the axis of shaft 27. In this swinging movement, no change of axial distance is involved as the eccentric bushing 28 moves bodily with the strap 33.

Fixed to strap 33 by means of bolts is a generally angle or L-shaped block 56, slidable against the frame 20 and held thereagainst by an extension or car 57 which extends into a slot under a gib or guide piece 58 screwed to the frame 20. A poppet 60 is carried by the block 56 and mounted therein for rotation about an axis parallel to the axis of roller 11 and coincident or nearly coincident therewith. A combined tripping and adjusting rod 61 passes through the poppet 60, being rotatable therein but fixed axially by its head 62 and a thrust collar 63. The opposite end of rod 61 is screw threaded and received in a threaded bore 64 in a poppet 65 which is rotatably carried by a tripping ring 66, which surrounds an eccentric bushing 67, in turn surrounding a cylindrical bearing surface concentric with the plate cylinder. Rotating the bushing (by further tripping mechanism elements, not shown) moves the ring 66 bodily in a generally vertical direction. A spring surrounding rod 61 thrusts against the

poppets

60, 65 through

thrust collars

63 and 71, serving to maintain the adjusted distance between poppets as determined by turning rod 61 by means of its head 62, formed to take a wrench.

For adjustment of roller 11, the worm 36 i manipulated to set its axial distance from drum 12 accurately, and the rod 61 is turned to adjust its axial distance from the plate cylinder 10. Since the latter adjustment does not affect the former, an extremely nice adjustment of the form rollers relative to plate cylinder may be obtained.

If now bushing 67 is rotated, the upward movement of ring 66, acting through rod 61, forces the roller 11 (in a circular are about drum 12) away from cylinder 10, thus tripping this roller oil. A similar action takes place with respect to roller 11', thus tripping off the ink (or water) motion.

In certain cases the cylinder 10 may itself be tripped away from a cooperating blanket or impression cylinder (not shown). In such case, cylinder 10 and ring 66 move bodily together and the rollers 11, 11' remain in engagement with

cylinders

10 and 12.

Where no trip movement is required, the poppets 65 may be fixed instead of being movable, the rods 61 serving in this case merely for adjusting the position of the roller.

We cl im:

1. A roller mounting for printing machine inking mechanisms comprising a rotatively mounted eccentric bushing, a strap carried by the eccentric bushing and supporting a roller socket, means carried by the bushing and strap for adjusting their relative angular position to regulate roller distance from the bushing rotative axis and means for adjusting the strap and bushing angularly and bodily about the said axis.

2. A roller mounting for printing machine inking mechanisms comprising a rotatively mounted eccentric bushing, a strap carried by the eccentric bushing and supporting a roller socket, a worm gear sector carried by the bushing and a worm carried by the strap for adjusting their relative angular position to regulate roller distance from the bushing rotative axis and means for adjusting the strap and bushing angularly and bodily about the said axis. 7

3. A roller mounting for printing machine inking mechanisms comprising a rotatively mounted eccentric bushing, a strap carried by the eccentric bushing and supporting a roller socket, means carried by the bushing and strap for adjusting their relative angular position to regulate roller distance from the bushing rotative axis and means for adjusting the strap and bushing angularly and bodily about the said axis, the last said means comprising a block slidable against the machine frame, fixed to the strap and extending under a guide piece attached to the machine frame.

4. A roller mounting according to claim 3, comprising an adjustable poppet rod for moving the block to adjust the roller position and means for moving the poppet rod between predetermined positions for giving .the roller a tripping movement.

5. In a. printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising an eccentric bushing mounted rotatively about the ink drum axis, a strap carried by the eccentric and supporting a roller socket, means carried by the strap and eccentric for adjusting their relative angular position to regulate roller distance from the drum axis, and means for adjusting the strap and bushing angularly and bodily about the drum axis to regulate the roller distance from the plate cylinder axis.

6. In a printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising a fixed concentric sleeve surrounding the ink drum shaft, an eccentric bushing mounted rotatively about the ink drum axis upon the said sleeve, a strap carried by the eccentric and supporting a roller socket, means carried by the strap and eccentric for adjusting their relative angular position to regulate roller distance from the drum axis, and means for adjusting the strap and bushing angularly and bodily about the drum axis to regulate the roller distance from the plate cylinder axis.

7. In a printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising an eccentric bushing mounted rotatively about the ink drum axis, a strap carried by the eccentric and supporting a rollersocket, a worm carried by the strap and a worm wheel sector carried by the eccentric for adjusting their relative angular position to regulate roller distance from the drum axis, and means for adjusting the strap and bushing angularly and bodily about the drum axis to regulate the roller distance from the plate cylinder axis.

8. In a printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising a fixed concentric sleeve surrounding the ink drum shaft, an eccentric bushing mounted rotatively about the ink drum axis upon the said sleeve, a strap carried by the eccentric and supporting a roller socket, a worm carried by the strap and a worm wheel sector carried by the eccentric for adjusting their relative angular position to regulate roller distance from the drum axis, and means for adjusting the strap and bushing angularly and bodily about the drum axis to regulate the roller distance from the plate cylinder axis.

9. In a printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising a pair of eccentric bushings mounted rotatively about the ink drum axis, a strap carried by each eccentric and supporting a roller socket, a worm carried by each strap and a Worm wheel sector carried by each eccentric for adjusting the relative angular position of either strap and its eccentric to regulate the roller distances from the drum axis, and means for adjusting each strap and its bushing angularly and bodily about the drum axis to regulate roller distance from the plate cylinder axis.

10. In a printing machine inking mechanism having a plate cylinder, an ink drum and a form roller operatively engaging the two, a roller mounting comprising a fixed concentric sleeve surrounding the ink drum shaft, a pair of eccentric bushings mounted rotatively about the ink drum axis upon the said sleeve, a strap carried by each eccentric and supporting a roller socket, a worm carried by each strap and a worm wheel sector carried by the corresponding eccentric for adjusting their relative angular position to regulate roller distance from the drum axis, and means for adjusting each strap and its bushing angularly and bodily about the drum axis to regulate roller distance from the plate cylinder axis.

11. In a printing machine inking mechanism having a pair of cylinders, and a roller operatively engaging the two, a roller mounting comprising an eccentric bushing mounted rotatively about a cylinder axis, a strap carried by the eccentric and supporting a roller socket, a worm carried by the strap and a worm Wheel sector carried by the eccentric for adjusting the relative angular position of the strap and its eccentric to regulate the roller distance from the said axis, and means for adjusting the strap and its bushing angularly and bodily about the said axis to regulate roller distance from the other cylinder axis.

12. A roller mounting according to claim 11, comprising also a second eccentric bushing, strap, Worm and worm wheel arrangement for similarly supporting and adjusting a second. roller.

13. In a printing machine inking mechanism having a cylinder and two rollers operatively engaging the same, a roller mounting comprising a fixed concentric sleeve surrounding the cylinder shaft, a pair of eccentric bushings mounted rotatively about the cylinder axis upon the said sleeve, a strap carried by each eccentric and supporting a roller socket, a Worm carried by each strap and a worm wheel sector carried by the corresponding eccentric for adjusting their relative angular position to regulate roller distance from the cylinder axis, and means for adjusting each strap and its bushing angularly and bodily about the cylinder axis to regulate roller distance from a cooperating cylinder.

Atwood Oct. 18, 1910 Peyrebrune Apr, 21, 1953