US2747208A

US2747208A - Roller washing apparatus

Info

Publication number: US2747208A
Application number: US231307A
Authority: US
Inventors: Charles C Schafer
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-06-13
Filing date: 1951-06-13
Publication date: 1956-05-29
Anticipated expiration: 1973-05-29

Description

May 29, 1956 c. c. SCHAFER ROLLER WASHING APPARATUS 2 Sheets-Sheet 1 Filed June 13. 1951 J67. ATTORNEY IN VEN TOR. CHARLES C. SCHAFER v 1 I A v May 29, 1956 c. c. SCHAFER 2, 7

ROLLER WASHING APPARATUS Filed June 13, 1951 2 Sheets-Sheet 2 7 INVENTOR. CHARLES C SCHAFER ATTOPN EY United States PatentO ROLLER WASHING APPARATUS Charles C. Schafer, Cleveland, Ohio Application June 13, 1951, Serial No. 231,307

7 Claims. (Cl. 15-4) The invention relates to apparatus for cleaning or washing rollers and more particularly to cloth covered rollers used in printing and the like.

Broadly the invention comprehends the provision of a roller washing apparatus wherein one of the rollers to be washed is driven from a power source and through surface engagement of this roller with a second roller the rotation thereof is transmitted to the second roller and in turn from the second roller to a third roller having surface engagement therewith. The first and third rollers are adapted to be partly immersed in a solvent for the removing of foreign material from the surface of the rollers being cleaned through the act of distribution of the solvent over the entire external peripheral surface of the rollers through rotative engagement of the first and third rollers with the second roller.

Among the principal objects of the invention are the provision of a roller cleaning or washing apparatus that:

1. Is simple and economical of construction and effective in use,

2. Utilizes the rollers to be cleaned through interengagement with one another as the means of effecting a cleaning or washing action thereon,

3. Requires solely the driving rotation of one roller to be cleaned to effect a rotation of the other rollers to be cleaned, and

4. Is readily and easily adaptable to the cleaning or washing of rollers used in the printing trade, be they of recent or older vintage.

Other objects and advantages of the invention will appear from the following description taken in connection with the drawings, forming a part of the specification; and in which Fig. 1 is a top elevation partly broken away view of a roller washing apparatus;

Fig. 2 is a side elevation partly broken away and partly cross-sectionalized view of the apparatus of Fig. 1;

Fig. 3 is a cross-sectional view taken substantially along lines 3-3 of Fig. 1;

Fig. 4 is a cross-sectional view taken substantially along lines 44 of Fig. l; and

Fig. 5 is a top elevation partly broken away and partly cross-sectionalized view of a modified chuck arrangement and modified form of roller for use in the apparatus of Figs. 1 and 2.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

This roller washing apparatus was devised primarily for the purpose of providing an apparatus of simple and economical construction and which is effective in use to quickly and easily remove foreign material which becomes deposited upon the external peripheral surface of printing machine rollers as a result of their service use.

The apparatus is simple in its makeup in that one of the rollers, such as a cloth covered roller, used extensively in the printing trade is rotatively driven from A 2,747,208 Patented May 2 1956 a power source such as an electric motor or the like. The drivingly rotated roller is adapted to have its ex ternal peripheral surface engage the external peripheral surface of a second roller to be cleaned, and the second roller is adapted to have its external peripheral surface engage the external peripheral surface of a third roller to be cleaned. Whereas the first and third rollers are journalled for rotation and are partly immersed in a cleaning solution or detergent, the second roller rests upon the first and third rollers for free rotation thereon effective to transmit rotation from the first roller to the third roller and thus provide for the distribution of the cleaning solution to the entire surfaces of all three rollers whereby through the frictional engagement of the second roller with the other two rollers a scouring, or rubbing, cleaning action occurs on the surfaces thereof. A positive tensioning of the second roller relative to the other two rollers can be provided if necessary so that a higher frictional drag is imposed and a positive cleaning action will result.

A variety of different rollers, particularly with regards to the shaft, or hub, thereof can be easily and readily accommodated merely by changing the chucking means therefor permitting of the driving rotation of the roller to be power driven.

Referring to the drawings for more specific details of the invention 10 represents generally a printing roller or the like cleaning or washing apparatus comprising basically a standard 12, an electric motor 14, reduction gearing 16, and a tank or pan 18.

The standard 12 includes a base 20, having

members

22 and 24 affixed thereto, member 22 providing an upright plate 26 and member 24 providing

upright plates

28 and 30 lying parallel to one another and spaced apart with plate 28 disposed between

plates

26 and 30 and axially spaced apart from plate 26 a predetermined distance, the purpose of which will hereinafter appear.

The motor 14 of conventional type adapted to receive its electrical power from any well known source, not shown, has gearing 16 driven from the output thereof with gear 32 of said gearing fixedly secured to output shaft 34 of the motor meshing with a proportionally larger gear 36.

The gear 36 is in turn fixedly secured upon a shaft 38 journalled upon

bearings

40 and 42 mounted in stationary relations respectively upon the

plates

28 and 30. A chuck 44 adapted to receive one end of a printing roller, such as a cloth covered roller 46 used in present day printing equipment, is fixedly secured upon the end 48 of shaft 38 opposite from the end upon which gear 36 is secured. Whereas the gear 36 is mounted upon one end of shaft 38 extending axially outward beyond plate 30, the end 48 of shaft 38 extending axially beyond plate 28 is directed axially toward the plate 26.

A shaft 50 similar to shaft 38 in respect to being journalled upon

bearings

52 and 54 mounted in stationary relation respectively on

plates

28 and 30 and having a chuck 56, identical with chuck 44, fixedly secured on end 58 thereof, differs therefrom solely in that it has drive connection directly with the motor.

The plate 26 support one side thereof disposed axially toward the chucks 44 and 56 a pair of tailstock members 60 the axis of which lie co-axially respectively to the axes of

chucks

44 and 56.

The tailstock members 60 each include a hollow cylinder 62 having a plunger 64 reciprocable therein. having on one end thereof extending axially away from the plate 26 a reduced portion 66 adapted to be received in a borev v movable relative to cylinder 62 through the provision of a pin 70 fixed to the plunger and extending radially through a predetermined formed slot 72 formed in the body of cylinder 62, thus permitting of the manual movement of the plunger as is required to mount or remove the rollers from cleaning position between the

chucks

44 and 56 and the tailstock members 60.

The cylinder 62 of the tailstock members are rigidly secured relative to the plates by way of their being set screw fastened to horizontally disposed and spaced parallel plates 74 welded or otherwise integral with plate 26.

A roller 76 adapted to be supported for cleaning purposes between tailstock member 60 and chuck 56 is, as shown, identical to roller 46.

The ends of both

rollers

46 and 76 each have bores 68 and hubs 78 wherein one bore 68 of each roller receives reduced portion 66 of the operative, plungers 64 therein whereas the hub 78 on the opposite end of the

rollers

46 and 76 are received in the

chucks

44 and 56 with a reduced portion 80 of shaft 38 and reduced portion 82 of the shaft 50 received respectively in the bores 68 of the

rollers

46 and 76 at this end. As a means of insuring the connecting of the chuck 44 to the roller to be power driven directly from the motor the peripheral surface of one hub of roller 46 is milled so as to provide a slot 84 within which a pin 86 fixed in the chuck 44 is received.

A third roller 88 of the cloth covered type adapted to be cleaned is disposed in friction contacting relation upon

rollers

46 and 76 effective to transmit rotation from roller 46 to roller 76. Although it is not essential, the roller 88 as shown being one of a set of rollers of a specific printing equipment consisting of

rollers

46, 76, and 88 is of a larger diameter for the purpose of properly mounting same has

axial shaft extensions

90 and 92 journalled in the hubs thereof, not shown.

Roller 88 as noted for the purpose of assuring a sufiicient friction contact upon the

rollers

46 and 76 is tensioned toward said rollers by a pair of springs 94, one attached between the respective shafts extensions 90 and 9 2 and stationary posts 96, one mounted upon each of the

plates

26 and 28.

As a means of restraining the roller 88 from axial movement the

plates

26 and 28 are disposed in predetermined axially spaced relation to one another so that the extremities of the shaft extensions bear lightly against the

respective plates

26 and 28.

The tank 18 is rather shallow and is adapted to contain a cleaning solvent which the

rollers

46 and 76 are adapted to be only partially immersed in the solvent for the cleaning thereof. A drain cock 97 is provided so as to permit of ease in the cleaning and removing the solvent from the tank as may be necessary.

Fig. illustrates a modified form of tailstock member 98 and chuck 100 adapted for use in the apparatus of Figs. 1 through 4 for supporting a modified form of roller 102 from that of 46 and 76 wherein one hub 104 of the roller 102 is received in a chuck 106 supported for movement on a stationary shaft 108 wherein a set screw 110 is adapted to secure or permit of the axial movement of chuck 106 on shaft 108. Chuck 100 which is driven directly from a rotative power source is adapted to receive the hub 112 of roller 102 includes a pin, or key, 114 adapted to fit a slot 116 in roller 102 and thus insure the rotation of the roller simultaneously with chuck 100.

In a normal operational use of the washing apparatus 10, the

rollers

46 and 76 are first mounted between the respective sets of tailstock members and chucks by retracting the plungers 64 axially into their cylinders by the movement of pins 70 in slots 72 provided in the cylinder permitting of the slipping of the hubs 78 of

rollers

46 and 76 into the

respective chucks

44 and 56 with the slot 84 in the hub 78 of roller 46 receiving key or pin 86 so as to lock the roller 46 to the chuck 44 for simultaneous rotation therewith. With the hubs 78 of the

rollers

46 and 76 received in the

respective chucks

44 and 56 the plungers are moved axially out of their cylinders so as to project the reduced portions 66 of the plungers into the bore 68 of the roller with which it is adapted to be associated. In their mounted positions between the chucks and tailstock members, the rollers are partially immersed in the cleaning solution contained in the tank 18 and roller 88 is next nestled in a position lying upon the

rollers

46 and 76 in parallel array thereto with its outer surface in frictional contacting relation to the outer surface of the other rollers. As a means of insuring a slight pressure between the surfaces of the

rollers

46 and 76, and roller 88 the springs are secured between posts 96 and the shaft extensions and 92.

With the rollers so mounted the motor 14 is started resulting in a direct rotation of roller 46 by way of reduction gearing l6 and the splined relation of the roller 46 and chuck 44 secured to shaft 48. The rotation of roller 46 is transmitted to roller 88 by way of the frictional contact of the surfaces thereof which rotation is then transmitted by roller 38 to roller 76 through frictional contact between their engaging surfaces. As the

rollers

46 and 76 rotate in the cleaning solution they serve to carry the solution along on their peripheral surfaces and thus provide for the conveyance thereof to the roller 88 whereby as the surfaces of the

rollers

46 and 76 move frictionally in engagement with roller 88 a slight scrubbing, or cleaning action occurs resulting in an easy, quick, and effective washing of the rollers.

For the purpose of insuring that the rollers will remain mounted as they are rotated the roller 46 has a clockwise rotation imparted thereto so that the plungers 64 are locked against axial movement by way of pins 70 acting against the one end of slots 72.

After the rollers are thoroughly washed the motor is stopped and by way of removing the roller 88 from on top of the

rollers

46 and 76 and by retracting the plungers 64 the rollers are removed from mounted position in the apparatus thereby making the apparatus ready for another set of rollers to be cleaned.

Although this cleaning apparatus is directed specifically at the washing of rollers of specific character and structure it is susceptible of modification by those skilled in the art without departing from the basic structural features disclosed and accordingly is to be limited only to the extent evidenced by the appended claims.

What Iclaim is:

1. A roller washing apparatus comprising means for rotatably mounting a roller to be washed, means for rotatably mounting a second roller to be Washed in parallel spaced relation to the first roller to be washed with the axis of said first and second rollers lying substantially in a horizontal plane, means for drivingly rotating one of the first two rollers and a third roller rotatably mounted in parallel surface engaging relation upon the first and second mounted rollers providing for the rotation of the third roller as engaged by the drivingly rotated roller, and for transmitting rotation of the drivingly rotated roller to the one of the first two rollers which .is not drivingly rotated, said means for mounting the first and second rollers, each including a chuck for supporting one end of the roller and an axially movable tail stock member for supporting the other end of the roller.

2. A roller washing apparatus according to claim 1 wherein one of the chucks in addition to supporting the one end of the roller is splined thereto and wherein the means for drivingly rotating one of the rollers to be washed has its output connected to the chuck splined to the one end of the roller associated therewith.

3. A roller washing apparatus according to claim 1 wherein the chucks are journalled for rotation.

4. A roller washing apparatus according to claim 3 wherein a stand is provided including a base and a plurality of parallel uprights and where the tailstock members are mounted on one of the uprights and the chucks journalled on another upright.

5. A roller washing apparatus according to claim 4 wherein the means for drivingly rotating one of the rollers includes an electric motor mounted on the base and reduction gearing interconnected intermediate the output of the motor and one of the chucks and wherein a tank adapted to contain a cleaning solution is mounted on the base between the uprights with a portion of the first and second mounted rollers extending into the tank.

6. A roller washing apparatus according to claim 5 wherein the third roller is a roller to be washed and wherein the chuck connected to the reduction gearing is splined to the one end of the roller which it supports.

7. A roller washing apparatus comprising means for rotatably mounting a roller to be washed, means for rotatably mounting a second roller to be washed in parallel spaced relation to the first roller to be washed with the axis of said first and second rollers lying substantially in a horizontal plane, means for drivingly rotating one of the rollers and a third roller rotatably mounted in parallel surface engaging relation upon the first and second 7 References Cited in the file of this patent UNITED STATES PATENTS 67,293 Gransden July 30, 1867 1,002,322 Sague Sept. 5, 1911 2,027,407 Von Webern Jan. 14, 1936 2,277,724 Smith Mar. 31, 1942 2,291,991 Spraker Aug. 4, 1942