US2040331A

US2040331A - Vibrating mechanism

Info

Publication number: US2040331A
Application number: US733703A
Authority: US
Inventors: Henri E Peyrebrune
Original assignee: Miehle Printing Press and Manufacturing Co
Current assignee: Miehle Printing Press and Manufacturing Co
Priority date: 1934-07-05
Filing date: 1934-07-05
Publication date: 1936-05-12
Anticipated expiration: 1953-05-12

Description

May 12, 1936' H. PEYREBRUNE VIBRATING' MECHANISM Filed July ,5, 1934 3 Sheets-Sheet l Webmin@ @fi H.

n Tl

May 12, 1936. H. E. PEYREBRUNE VIBRATING MECHANISM Fi1ed-July.5, 1934 3 Sheets-Sheet 2 ebru May 12, 1936. H. E. Pl-:YREBRUNE VIBRATING MECHANISM 5 Sheets-Sheet 3 Filed July 5, 1954 *7g/06m: Henrbyrebrzne Patented May 12,l v 1936 UNITED STATES PATENT oFFlCE VIBRATING MECHANISM Henri E. Peyrebrune, River Forest, Ill., assigner to The Miehle Printing Press and Manufacturing Company, Chicago, Ill.,y a corporation of Illinois Application July 5, 1934, serial No. 733,703

2 5 Claims.

One of the primary objects of the present iny of a roller.

A further object is to provide an improved mechanism in which all of the operating parts are completely inclosed and effectively sealed to ,protect them against grit and other foreign matter that might cause undue Wear of said parts.

A still further object of the invention resides in the provision of means whereby the vibrating mechanism may be conveniently and effectively lubricated while in operation. f

These and other objects of the present invention will become more fully apparent from the following' description and accompanying drawings, ln which: l

Figure 1 is a diagrammatic view in side elevation of the roller arrangement in an inking mechanism of a printing press in which vibrating mechanlsmtembodying the present invention may be used;

Figure 2 is a longitudinal section of a roller showing one form of the improved vibrating mechanism housed therein;

Figure 3 is a cross section taken along line 3`-3A of the roller illustrated in Figure 2;

Figures 4 and 5 are partial longitudinal sections of the roller illustrated in Figure 2, showing the parts of the vibrating mechanism in different positions; and

Figures 6 and 'l represent a modified form of vibrating mechanism with the roller shown in printing form (CI. lOl-348) longitudinal section and the parts of the vibrating mechanism located in positions similar to those illustrated in Figures l and 5.

Referring now more particularly to'Figure 1 of the drawings, the ink distributing rollersV l0, Il, to which this invention may be readily applied, are shown in rolling contact with the rider rollers l2, I3 and form rollers I4, l5 respectively. Preferably such distributing rollers derive their rotation merely by friction due to their peripheral contact with the other rollers, which latter, however, are driven positively by gearing. The inking mechanism shown is of a conventional type frequently used on planographic printing presses, the ink being fed to the distributing roller unit by means of a ductor roller I6, which alternately contacts with the fountain roller Il and the rider roller I8. After the printing ink has been thoroughly distributed by the cooperation of the rider rollers, vibrator roller I0 and ink distributing drum I9, the film of ink is transferred from. said drum to the form rollers by distributing rollers 20, 2|, 22, 23, 24, and 25, and then applied to the on the cylinder 26 by said form rollers.

According to the particular form of vibrating mechanism shown in Figure 2, the shaft 2l is mounted stationary in any suitable bearings such as indicated at 28. This shaft supports the roller shell 29 so that it can freely rotate on and move axially of said shaft. Preferably I provide bearing heads 30 at each end of the shell 29 to rotate therewith, and which heads are formed with an internal groove to retain a sealing washer 3|.

The shell 29, which as indicated above, derives its rotary motion by frictional contact with other rollers of the inking mechanism, has secured to its inner Walla driver 32 which operates within a longitudinal slotI 33, formed in a follower 34 to thereby rotate the latter' about the stationary shaft 21. In order to reduce friction between the driver 32 and the walls of the slot 33 in theA follower 34, I preferably provide a roller 35 mounted on anti-frictionj bearings 36. At vone end of the follower is provided an internal gear 31 which meshes with a pinion 38 that is mounted to rotate'on an eccentric vbearing sleeve 39 rigidly secured to the shaft 2l in any suitable manuel such as by means of a taper pin 4l).

Said shaft also carries a rotary cam member 4| formed with a cam groove 42 within which operates a cam roller 43 secured to the `inner wall of the shell 29 and preferably mounted on ari anti-1 friction bearing 44.

In order to absorb end thrust to which the member 4| is subjected, as will be readily understood from the following description, end thrust bearings 45 are mounted at each end of said member. The inner end of the cam member 4| is provided with an internal gear 46 which also meshes with said pinion 33; however, this gear in the preferred form of mechanism illustrated has a larger number of teeth than the gear 31, for the purpose of producing a differential motion between the follower 34 and the cam member 4|, as will be explained later. A similar result would be obtained, how' gear, while the gear 31 must be a generated gear,

or lvice versa, because they both mesh withthe one pinion 38.

The lfollower 34, cam member 4| and pinion 38 are held in cooperative relation on the shaft 21 by means of retaining

collars

41 and 48, the former abutting against the outer thrust bearing 45 on the member 4| and the latter bearing against the free end of the follower 34. Saidcollars may be secured to the shaft 21 in any suitable manner such as by setscrews 49.

In order to assure effective Alubrication of the various parts mounted on the shaft21, I provide a bore 5U in said shaft and a number of oil ducts 5|, which latter leadl to the various points that require lubrication. The outer` end of said bore is closed by means of a plug 52. 'Ille oil cup 53 is provided in the bearing 28 of the shaft 21 at anaccessible point so that all parts of the vibrating mechanism may be conveniently lubricated during the operation of the roller.

TheY enlarged cross sectional view illustrated in Figure 3 shows the pinion 38 in engagement with the internal gear46 of the cam member 4|,

the pinion being assumed to be driven in the di'- rection indicated by the arrow in Figure 3, due

to its meshing engagement with the internal gear 31, see Figure 2, which follows the direction of rotation of the shell 29 indicated by the arrow in Figure 2, it being understood, however, that if the rotation of the shell 29 were in the .other direction, the function of the respective parts would be the same.

- rection. This rotation, due to the meshing ensagement of the internal gear 31with the pinion 39 will also rotate the latter inthe same `direction about its eccentric bearing sleeve 39, see Figures 2 and 3, the eccentric mounting ofsaid pinion,prod11cing the equivalent of a crank action. The rotation of said pinionis thus transmitted to the internal gear 43, however, the rate of rotation ofthe latter gear is slower than that of the internal gear 31, due to the gear 43 having more teeth than the gear 31.

Asillustrated in Figure 2, the driver 32, as well as the cam roller 43, are both rigidly mounted on the shell 29, therefore, due to the differential speed of rotation at which the follower 34 and the cam member 4| travel, the roller 43 in this particular instance will ride against the surface 54 of the cam groove 42, see Figures 4 and 5, and consequently the sleeve 29 will 'move to the left until the roller 4.3 has reached the apex 55 of the cam groove 42.

Upon continuation of the rotationbf shell 29, the cam roller 43 will bear against the surface 53 of the cam groove 42, and as a result the shell 29 will be moved in the opposite direction, namely to the left, as viewed in Figures 4 and 5, the driver 35 of coursefollowing this movement within the slot 33 of the' follower 3'4, until the driver 35 and roller 43 have reached the positions indicated in broken lines in Figure 5, thereby completing one cycle of oscillation of the shell 29.

Figures 6 and 'I illustrate a modification of the vibrating mechanism shown in the preceding iigures, and, as will be seen, instead of vproviding one single follower 34 and one single cam member 4|, as illustrated in Figures 4 and 5, I provide two

cam members

51 and 58 which alternately function as a cam and a follower, the purpose of this modification being to provide a cam groove, the angle of which will be less acute than the angle of the cam groove 42 in the cam member 4| of the mechanism hereinbefore described, in this manner the friction. between the cam rollers and their respective cam grooves will be appreciably in Figure 6, and assuming that the shell 2 9 rol tates in the direction indicated by the arrow, the roller 64 will enter the linear portion 32 of the cam groove because as explained above, the internal gear 31 which has a smaller number of teeth than the internal gear 43 will rotate at a faster rate of speed so that the cam member 31 will overtake the roller 33, and the latter will then enter "the cam groove 59 and ride against the cam surface 35, whereby the shell 29 will be moved to the left as viewed in Figure 6.

In Figure 'I the

rollers

33 and 34 areshown midway of their travel through the

cam grooves

59 and 39, the roller 34 acting as a driver' against the face 33 of the linear portion 32 in the cam groove 39.

In Figme 6 the position of the rollers 83 and 3 4, when they have, reached the end position of one reciprocatingstroke of the shell 29,` is shown in broken lines.

The direction of rotation remaining the same asfindicated by the arrow, then upon continued rotation of the shell 29, andtherewith of the

rollers

33 and 34, the cam meinber 51 i. e. its face 31, -due to the greater speed of said cam member as compared with that of the cam member 39, will. Y

bearagains't the roller 33whereas the roller 34 roller against the face 3.3 of

willtranquila cam groove u and bythe naar groove 60, the roller 63, while bearing against the face 61 of thel linear portion of the cam groove 59, will be moved to the right and therewith the shell 29 will be moved to the right, the cam member 51, due to the roller 63 traveling in the linear portion 6I of the groove 59, then acting as a follower during the reciprocation of the sleeve 29 in the direction to the right'as viewed in Figures 6 and 7. The mechanism will have completed one cycle when the

rollers

63 and 64 have again reached their position indicated in full lines in Figure 6.

It will be understood that, Without departing from the principle of the invention, various other forms of mechanism may be readily used, for instance, instead of providing a differential gearing such as is comprised by the

internal gears

36 and 31 and the pinion 38, a reduction gearing comprislng for example a worm gear mounted on the stationary shaft to rotate with the roller shell and cooperating with Worm wheels, and pinions suitably arranged so that a similar reduction of the speed and reciprocation of the shell may be accomplished. In this form of construction, the cam member would be mounted rigid on the stationary shaft, and the cam roller would be carried by a sleeve arranged to rotate within the shell but secured against lateral displacement relative to the shell, so that the latter Will follow the lateral reciprocation of said sleeve.

I claim:

1. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a supported rotary member, and diierential gears for imparting a lateral reciprocating motion to said rotary member. A

2. In vibrating mechanism for ink distributing rollers or the like, the combinationof a stationary shaft, a supported rotary member, and differential mechanism for'imparting a lateral motion to said rotary member.

3. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, ashell on said shaft mounted for rotation, and differential speed means for imparting lateral motion to said shell.

4. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell on said shaft mounted for rotation, and differential speed means for imparting lateral reciprocating motion to said shell during its rotation.

5. In vibrating mechanism for ink distributing shaft, a shell on said shaft mounted for rotation, 'a cam member, and differential speed means cooperating with said cam member for imparting a lateral reciprocating motion to said shell.

8. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell on said shaft mounted for rotation, a cam member, and differential speed means within said shell cooperating with said cam member and including a train of gears for imparting a lateral reciprocating motion to said shell.

9. In vibrating mechanism for ink distributing rollers or the like, the combination of a closed supported rotary member, and differential speed means within said member for moving it longitudinally of its support at a predetermined ratio to the peripheral speed of said member.

10. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell on said shaft mounted for rotation, and differential speed means Within said shell including a train of gears for moving said shell longitudinally of said shaft at a predeter mined ratio to the peripheral speed of said shell.

11. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a. shell on said shaft mounted for rotation, a cam member, and differential speed means within said shell cooperating with said cam member and including a train of gears for moving said shell longitudinally of said shaft at a predetermined ratio to the peripheral speed of said-member.

12. In vibrating mechanism for ink distributing rollers or the like, the combination of a shaft, a closed shell on said shaft mounted for rotation, and differential speed means within said shell and including a train of gears for imparting a lateral reciprocating motion to said shell during its rotation. i

13. In vibrating mechanism for ink distributing rollers or the like, the combination of a shaft, a closed shell on said shaft mounted for rotation,

, and means provided within said shell, including ed for rotation, a cam Within said shell, and retionary shaft, a closed shell on said shaft mounted for rotation, and means provided within said shell and including differential gearing for imparting a lateral reciprocating motion to said shell during its rotation.

16. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a closed shell on said shaft mount'- ed for rotation and driven by rollers in contact therewith, a cam and gearing operatively asso- 'ciated within said shell for imparting a lateral reciprocating motion to said shell during its rotation.

17. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell mounted to rotate on and move longitudinally of said shaft, a cam mounted for rotation on said shaft, a follower, and differential gearing operatively associated with said cam andI follower for imparting a lateral reciprocating motion to said shell duringvits rotation.

18. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell mounted to rotate on and move longitudinally of said shaft, a. cam mounted for rotation on said shaft, a follower driven by said shell and carried by said shaft, and differential gearing operatively associated with -said cam and follower for imparting a.` lateral reciprocating motion, to said shell during its rotation.

19. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell mounted to rotate on and move longitudinally of said shaft, a cam mounted for rotation on said shaft, a follower driven by said shell and carried by said shaft to rotate thereon, means to prevent movement of said cam and follower longitudinally of said shaft, and differential gearing operatively associated with said cam and follower for imparting a lateral reciprocating motion to said shell during its rotation.

` 20. In vibrating mechanism for ink distributing rollers or the' like, the combination of a shaft, a shell on said shaft mounted for rotation, a rotary cam and follower Within said shell, a gear on said cam, a gear on said follower, and a pinion eccentrically mounted for rotation on said shaft and meshing with said gears for imparting differential motion to said cam and follower and to thereby laterally reciprocate said shell during its rotation.

21. In vibrating mechanism for ink distributing rollers or the like, the combination of a shaft, a ,shell on said shaft mounted for rotation, a rotary cam and follower within said shell, an internal gear on saidcam, an internal gear on said follower, having a different number of teeth than said first mentioned gear, and a pinion eccentrically mounted for rotation on said shaft and meshing with said gears for imparting differential motion to said cam and follower and to thereby laterally reciprocate said shell during its rotation. y

22. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell mounted to rotate on 23. In vibrating mechanism for ink distribut-y ing rollers or the like, the combination of a stationary shaft, a shell mounted to rotate on and move longitudinally of said shaft, a rotary cam a gear on said cam, a gear on said follower having a different number of teeth than the gear on said cam, and a. pinion eccentrically mounted for rotation on said shaft and meshing with said gears for imparting differential motion to said cam and follower and to thereby laterally reciprocatefsaid vshell during its rotation.

. 24. In vibrating mechanism for ink distributing rollers' or the alike, the combination of a stationary shaft, a shell on said shaft mountedv for rotation and driven by rollers in contact therewith, and means provided within said shell and including reduction gearingv operative to move said shell longitudinally of said shaftl at a. prevand follower mounted for rotation on said shaft, l

determined ratio to the peripheral speed of said.,

shell. i'

25. In vibrating mechanism for ink distributing rollers or the like, the combination of a stationary shaft, a shell on said shaft mounted for rotation and driven by rollers in contact therewith, and means provided within'said shell and including differential gearing operative to move said shell longitudinally of said shaft at a predetermined ratio to the peripheral speed, of said shell.

HENRI E. PEYREBRUNE.