US1973316A

US1973316A - Micrometer adjustment for coating machine rollers and the like

Info

Publication number: US1973316A
Application number: US672408A
Authority: US
Inventors: Hormel August
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-23
Filing date: 1933-05-23
Publication date: 1934-09-11
Anticipated expiration: 1951-09-11

Description

A. HORMEL Filed May 23, 1933 MICROMETER ADJUSTMENT FOR COATING MACHINE ROLLERS AND THE LIKE Sept. 11

Patented Sept. 11, 1934 MICROMETER ADJUSTMENT 'FOR COATING MACHINE ROLLERS AND THE LIKE August Hormel, Hoboken, N. J.

Application May 23, 1933, Serial No. 672,408

Claims.

This invention relates to an improvement in a means for accurately adjusting the relative positions of the rollers used in coating machines and the like.

As is well known in, this art, several rollers are employed in these machines, by which a film of the coating material is transferred to the composition roller. Since the thickness of the film or coating applied to the composition roller is of importance and is gauged by the relative positions of the several rollers to one another and to the composition roller, accuracy inv the spacing of these rollers is highly desirable.

Accordingly. the object of this invention is to ll provide a micrometer setting by which the several rollers may be accurately set with respect to one another and with respect to the transfer roller,

the setting thereof when once secured being main tained. In the accompanying drawing, wherein the preferred embodiment of the invention is shown, Fig. 1 is a side elevation of a portion of a coating machine, showing the improved micrometer adjustment for the several rollers; Fig. 2 is a similar view of the micrometer adjustment, showing the parts in their respective positions of adjustment; Fig. 3 is a sectional view on the line 3--3 of Fig. 1, looking in the direction of the arrows; Fig. 4 is a sectional view on the line 4-4 of Fig. 1, looking so in the direction of the arrows; and Fig. 5 is a sectional view on the line 55 of Fig. 1, looking in the direction of the arrows.

In the drawing 6 indicates one of the frame members of the coating machine, two of these 5 members being employed and connected together in any suitable way as is conventional in machines of this character. Rotatably mounted in the supporting frame members 6 by means of the i usual pairs of sliding bearing blocks 7 and 8 are the' composition roller 9 and the supporting roller 10, the sheets to be coated being fed between the two rollers 9 and 10 as is well understood in this art. At 11 is shown the fountain roller which mounted on the shaft 12 is rotatably supported in blocks 13 at the opposite sides of the machine. Each of the blocks 13 is guided between the frame members 14 and 15 and a spring. 16 tends to urge the blocks to the right in Fig. 1. The blocks 13, and the roller 11 supported thereby, are adjusted toward the composition roller 9 and against the pressure of the spring 16 by means of a threaded shaft 1'! which is threaded through an internally and externally threaded sleeve 18 that is threaded within the vertical frame member 19. The exbe had.

.a fountain roller 11. Said transfer roller applies.

PATENT OFFICE.

ternal threads on the sleeve 18 are of finer pitch than the threads on the shaft 17 so that by adjustment of the sleeve 18 a micrometer setting of the roller 11'is had. A hand-wheel 20 is provided on the end of the shaft 17 and a locking member or (I nut 21 is threaded on said shaft for a purpose to be hereafter set forth.

The sleeve l8carries a calibrated drum 22 and a fixed indicator 23 is provided on the frame member 19-which co-operates with the calibrated o drum to enable a precise setting of the roller 11 to The roller 25 receives coating material from a coating of the material to the surface of the composition roller 9. The transfer roller 25 is. mounted on'a shaft 26 rotatably held in bearing blocks 27 one of which is located at each side of the machine. Each of these bearing blocks 27 is spring pressed to the right of Fig. 1 by the spring 28. The blocks 27 are guided between frame members 14 and 29, a set screw 30 extending through the block and bearing against the side of the frame member 29, is adjusted when the spacing of therollers is set to prevent any possible vibratory movement of the block in the guides.

At 31 is indicated a shaft for adjusting the position of the transfer roller relative to the fountain roller 11. This shaft 31 is provided with a hand-wheel 32 and a threaded portion 33 which threads through a guide34 secured to the top of the bearing block 13 in which the shaft 12 of the fountain roller 11 is mounted. The shaft 31 carries a calibrated drum 36 which co-operates with an indicator or pointer 37 secured on the frame member 19 to indicate the setting of the roller 25. c

To set the positions of the several rollers, the first step is to position the two rollers 11 and 25 relative to one another. This is done by shifting the roller by turning the hand-wheel 32 until the periphery of the roller 25 is brought into contact with the periphery of the roller 11. The drum 36 is then loosened on the shaft 31 by loosening the set-screw 50, and the drum is turned freely on the shaft 31 until a zero reading in alignment with the pointer 37 is had. The set screw 50 is then tightened, and as the calibrations on the drum 36 are in thousandths, the hand-- wheel 32 may be turned to space the drum 25 the required separation from the drum 11 in thousandths, as indicated by the calibrations on the drum 36. When the position of the two rollers 11 and 25 with respect to one another has been obtained, they are locked in-this position by a set-screw 40 which extends through the 'guide 34 and impinges against the threaded portion 33 of the shaft 31. This set-screw maintains the position of the block 13 relative to the block 27 and thus maintains the two rollers 11 and together as a unit in their position of adjustment with respect to one another. The two rollers 11 and 25 are then moved as a unit toward the composition roller 9 to adjust the space between, the transfer roller 25 and the composition roller. This is done by turning the hand-wheel 20 which rotates the shaft 17 within the sleeve 18 and forces the block 13 to the left of Fig. 1. As the block 13 is connected by the set screw to shaft 31 which operates against the block 27, said block 2'7 and transfer roller 25 carried by it are moved toward the composition roller 9. If a satisfactory adjustment of the spacing between the transfer roller 25 and the composition roller 9 is had by rotation of the shaft 17, such position of adjustment is then set by moving the locking nut 21 to the left of Fig. 1 to bring it into contact with the drum 22 as shown in Fig. 2. The tightening screw 41 for the nut 21 is then tightened to secure the nut against movement. Thereafter, the two rollers 11 and 25 can be shifted away from the composition roller 9 as shown in Fig. 1, whenever desired, without losing the setting of these two rollers with respect to the composition roller, by turning the shatl'l. To bring the rollers back to their former position, it is merely necessary to turn the shaft 1'1 until the nut 21 is brought up against the drum 22.

In case a very fine adjustment of the transfer roller 25 toward the composition roller 9 is required, the sleeve 18 is used. First, a relative rough adjustment is secured by turning the shaft 17 to bring the roller 25 to an approximately proper spacing with respect to the roller 9. Then the set-screw 43, which normally holds the sleeve 18 from turning in the frame member 19, is loosened. and the sleeve 18 is manually turned, this bringing the shaft 1'7 toward the left, or vice versa according to the direction in which the sleeve 18 is being turned. As the sleeve 18 has a fine thread, a very precise adjustment of the transfer roller relative to the composition roller is had. When the proper spacing of the two rollers 25 and 9 is secured, by rotation of the sleeve 18 the set-screw 43 is tightened to fix the sleeve in position, and the lock-nut 21 is adjusted on the shaft 17 to bring it up against the drum 22 as shown in Fig. 2, and it is then set by tightening the locking screw 41. Thereafter the two rollers 11 and 25 can be moved as a unit away from the composition roller 9 whenever desired by turning the hand-wheel 20, and they can be restored to their former position by turning the hand-wheel to bring the nut 21 up against the drum 22.

The calibrated drums 22 and36 permit the adjusting means located at the opposite sides of the coating machine to be set in like position.

What I claim is:

1. A device of the character described comprising, a composition roller, a fountain roller, a transfer roller for receiving a coating from the fountain roller and applying it to the composition roller, means for mounting the transfer roller to permit it to be moved to and from the composition roller, means for moving the fountain roller to and from the transfer roller, and means for connecting the fountain and transfer rollers to enable them to be moved together as a unit to and from the composition roller without disturbing their setting with respect to one another.

2. A device of the character described comprising, a. support, a sleeve threaded therein, a

shaft threaded within the sleeve, a roller mounting spring-pressed against the shaft, means for permitting rotation of the shaft within the sleeve, means for locking the sleeve against rotary movement in the support, and stop-means adjustable on the shaft for limitng rotary movement of the shaft within the sleeve.

3. A device of the character described comprising, a composition roller, a pair of rollers adapted to be adjusted relative to the-composition roller, means for adjusting the position of each of the rollers relative to one another, means for locking the two rollers in any set position of separation from one another, a threaded shaft for shifting the pair of rollers as a unit toward the composition roller, and a threaded mounting for the shaft to be shifted to move the shaft with it.

4. A device of the character described.comprising, a composition roller, a fountain roller, a support for said fountain roller, a threaded sleeve mounted in said support, means for fixing said sleeve in any position of adjustment in the support, a threaded shaft extending through the sleeve, adjustable means on said shaft for limiting the longitudinal movement of the shaft through the sleeve, means engaged by the shaft for shifting the fountain roller on its support, a transfer roller and means for shifting said transfer roller relative to the fountain roller, means for locking the fountain roller and transfer roller together as a unit in any position of separation so that the same may be moved as a unit toward the composition roller by the means for shifting the fountain roller.

5. A device of the character described comprising, two rollers, slidable bearing members in which the rollers are mounted, a pair of shafts for adjusting the position of said rollers, a support on which the bearing members are mounted, a threaded sleeve adjustable in said support, one of the shafts movable through said sleeve for slidingone of the bearing members on the support, the second shaft being threaded through one of the bearing membersand engaging the other bearing member to move it on the support and means for locking the last mentioned shaft with respect to the bearing member through which it is threaded.

AUGUST HORMEL.