US1451726A

US1451726A - Bearing and fountain adjustment for intaglio machines

Info

Publication number: US1451726A
Application number: US406385A
Authority: US
Inventors: Adolph M Zuckerman
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1920-08-27
Filing date: 1920-08-27
Publication date: 1923-04-17
Anticipated expiration: 1940-04-17

Description

Apr. 17, 1923.

A. M. ZUCKERMAN BEAHlNG AND FOUNTAIN ADJUSTMENT FOR INTAGLIO MACHINES Filed Aug. 27, 1920 2 Sheets-Sheet 1 will :i

2 Sheets-Sheet 2 f x 4 N ENWENTW Apr. 37, 1923.

A. M. ZUCKERMAN BEARING AND FOUNTAIN ADJUSTMENT FOR INTAGLIO MACHINES Filed Aug. 27, 1920 Patent Apr. I7, I23.

ADOIJPH III. ZUCKERN, OF NEW YORK, N. Y., ASSIGNOB TO R. HOE AND 00., OF NEW YORK, N. Y., A CGRPORATION 015 NEW YORK.

BEARING AND FOUNTAIN ADJUSTMENT FOR INTAGLIU CHINES.

Application filed August 27, 1920. Serial No. 406,385.

T all whom'it may concern:

Be it known that I, AooLPH M. ZUCKER- MAN, a citizen of the United States, residing at New York cit county of New York, and

a State of New I ork, have invented certain new and useful Improvements in Bearings and Fountain Adjustments for Intaglio Ma chines, fully described and represented in the following specification and the accomw panying drawings, forming a part of the same.

This invention relates to certain improvements in machines for intaglio or rotogravare printing.

In this class of machines the printing is generally efl'ected by a vcylinder the surface of which is engraved with the matter to be printed and'it is necessary to move this cylinder bodily from the machine after the ac printing to change the form or enable another form cylinder to be placed in position. In this class ofmachines,furthermore, the form cylinder is in the best constructions supported in the machine so as to run di- 35 rectly in a fountain which supplies the ink necessarv for the printing, so that the ink will not dry on the engraved surface of the cylinder. To enable the cylinder to be removed from and placed in position in the Sc machine the bearings and fountain have to be removedaway from the cylinder and the distance which is necessary for the fountain to be moved is greater than the distance that it is necessary to move the bearings. Con- W sequently to free the cylinder of both the bearing and the fountain it was necessary for the operator to efleet two adjusting movements.

It is the object of the present invention to to provide a construction by which the cylinder bearings and the fountain may be moved to and from the cylinder the exact distance necessary to permit the cylinder to be removed from the machine, this movement of at the fountain and bearing being simultaneous, the fountain being moved the required greater distance so that but one adjusting operation is required to free the cylinder, and to adjust the bearings and fountain at when a cylinder is placed in the machine.

, A further object of the invention is to provide a simple and compact structure and one which can be either operated by power from the machine or by hand if necessary.

35 With these and other objects not specifically referred to in view, the invention consists in certain novel parts and combinations which will be particularly described with reference to the accompanylng drawings and pointed out in the annexed claims.

In the drawings:

Figure 1 is a sectional side elevation partly broken away showing one side of the machine with the form cylinder and adjacent parts in printing position.

Figure 2 is a similar View showin the parts in the position in which the cyllnder has been freed from the fountain and hearing and is ready for removal from the machine.

Figure 3 is a broken end elevation of the machine, and

Figure 4 is a detail plan view of the lower side of one of the nuts or bushings on which the bearings are carried.

Referring now to the drawings, the invention has been illustrated in connection with a machine employing one printing couple, but it will be understood that it may and is intended to be used with multicouple machines, the form cylinders of wh ch may all be supported and adjusted in ner. In the machine shown there is a form cvlinder 1, an impression roll 2, and a pair of tension rolls 3, overwhichthe web W is led as is usual during printing.

The cylinder 1 is supported in side framesel of the machine rising from a suitable base as 5, so that it may be freed from the fountain and bearings and readily removed from the machine, and the fountain and bearings may be given a simultaneous movement to and from the cylinder, the fountain bein moved the necessary greater distance than t e bearings.

Wh le the specific mechanism employed for effecting this may be varied, in the par ticular construction illustrated there is provided at each end of the cylinder a bearing block 6 having the usual concave recess 7 in which rests the end of the cylinder shaft 8. These blocks have extensions 9 which slide in guides 10 formed in the machine frame and the blocks are provided interiorly with a recess 11 having a shoulder 12. Extending into this recess and abutting against the shoulder is an interiorly threaded nut or bush 13 having a flange 14 by which it is secured to the bottom of the block by bolts 15 or in any other sutable manner, this cona similar man-- struction being duplicated at each side of the machine.

The form cylinder 1 runs in an ink fountain 16, which is supported to have a movement toward and away from the cylinder and simultaneously with the bearings. The specific means for supporting this founta'n may be somewhat varied, but at each side of;

fore stated, a simultaneous movement toports carried thereby.

ward and from the cylinder and this move ment in the present instance is a raising and lowering movement, the fountain moving a greater distance than the bearings. VVhle means for effecting such movement may be varied, as shown, this varied movement of the fountain and bearing is effected by providing a pair of screw rods 20, these screw rods extending into the nut or bushings13 and the bushings 21, before referred to, and acting on the operation of the screws, to

raise and lower the' nut andbushings and .consequently the bearings and fountain suptheir lower ends take bearing in recesses in the frame of the machine, thrust collars 20 being provided to take up the end thrust.

These screw rodsv are identical in construction, and each has at its upper end a threaded section 22 which works in one of the bushes or nuts 13, and a lower threaded section 23 which works in the threaded portion of the bushings 21. The pitch of the threads 23 is coarser than that of the threads 22 so that as the screw is rotated a greater amount of movement will be given the bushing 21than is given the nuts 13, consequently the sleeves 17 and the fountain carried thereby will be moved a. greater distance than the hearing, but simultaneously therewith. The pitch of these threads, of course, may be varied to suit the requirements of any particular machine and the relative distance which the bearings and the fountain have to travel, the pitch selected being such as to move the bearing and the fountain the desired distance.

, The screws may be rotated in any suitable or desired manner. In. the best constructions means will be provided whereby they can be operated from a moving part of the machine, the movement being effected by a motor and the amount of movement being controlled by an electric switch. As

These screw rods at illustrated there is provided a shaft 24 provided at each .end with a worm 25' which meshes with worm wheels 26, one of these.

a motor 27 having a shaft 28 on the end of which is a spur pinion 29 which meshes with the spur gear 30 on a shaft 31 suitably mounted in the frame of the machine. This shaft 31 carries a worm which meshes with. a worm wheel 32, on a shaft 24: and the motor is controlled by means of a limit switch (not illustrated) by which the exact amounts of turning movement desired may be given the screw rods and the bearing and fountain adjusted exactly, which is important in returning the parts to position after a cylinder has been changed or for varying the impression, or for other reasons.

If desired, instead of the motor drive, or if desired withit, the machine may be provided with a device for effecting the raising and lowering of the bearings and fountain by hand. While the particular mechanism employed for this purpose may of course be' widely varied, in the construction shown the bushings 21 before referred to, are provided with teeth 34: which mesh with worms 35 on a shaft 36 extending across the machine. This shaft carries a miter 37 which meshes with a miter 38.0n a short shaft 39 suitably supported in the machine, this shaft having an operating handle 40 by which it may be turned and through the gear connections described the screw rods operated.

To enable the cylinder to be readily removed from the machine bars 41 may be provided inside the bearings on which the cylinder shaft may rest and on which it may be rolled out after it has been freed of the bearings and fountain as described.

While the invention has been shown and described in its preferred form, it will be understood that various changes and variations may bemade in the specific embodiment illustrated, and that such changes and variations are within the scope of the appended claims.

What I claim is:

- 1. In an intaglio printing machine the combination of a printing cylinder, movable bearings therefor, an ink fountain movabletowards and from the cylinder, a pair of screw rods, supporting the bearings and fountain and threads of different pitch on the rods for causing simultaneous movement 'of the bearings and fountain different distances to and from the cylinder when the rods are rotated.

2. In an intaglio printing machine the combination of a printing cylinder, movable bearings therefor, an .ink fountain movable towards and from the cylinder, a pai of nae'mae screw rods supporting the bearings and fountain, threads of difl'erent pitch on the rods for causing simultaneous movement of the bearings and fountain difi't'erent distances to and from the cylinder, a power shaft, and connections from the shaft for driving both the screw rods.

3. In an intaglio printing machine the combination of a printing cylinder, movable bearings therefor, a pair of screw threaded rods. threads on the rods through which the bearings are moved, bushings, supports from the bushings for supporting the fountain, threads on the rods having a greater pitch than the first threads for moving the fountain, and connections for rotating the rods.

4. In an intaglio printing machine the combination of a printing cylinder, movable bearings therefor, a pair of screwthreaded rods, upper bushings extending into the bearings, upper threads on the rods taking into the bushings, lower hushings, a sleeve supported on the lower bushings and supporting the fountain, threads in the lower bushing and lower threads on the rods of greater pitch than the upper threads and taking into the lower bushingaand con nections for rotating the rods.

5. In an intaglio printing machine the combination of a printing cylinder, moreable bearings therefor, an ink fountain moveable a difi'erent distance than the bearings and in which the cylinder runs, a power shaft, connections from the shaft for moving the fountain a greater distance than but simultaneously with the bearings, a second. shaft and manual connections from it for moving the fountain a greater distance but simultaneously with the bearings.

In testimony whereof, I have hereunto set my hand. v

ADULPH M. ZUCKER-MAN.