US2076405A

US2076405A - Web roll support

Info

Publication number: US2076405A
Application number: US759639A
Authority: US
Inventors: Albert J Horton
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1934-12-29
Filing date: 1934-12-29
Publication date: 1937-04-06
Anticipated expiration: 1954-04-06

Description

Filed Dec. 29, 1934 2 Sheets-Sheet l INVENTOR.

April 6, 1937. A. J. HORTON 2,076,405

WEB ROLL SUPPORT Filed Dec. 29, 1934 2 Sheets-Sheet 2 INVE NTO R M .5 M a ow o m M w fi w lb... ER: L F

Patented Apr. 6, 1937 UNITED sTATEs 2,076,405 wan ROLL SUPPORT Albert J. Horton, White Plains, N. Y., assignor, by mesne assignments, to R. Hoe & 00., Inc., New York, N. Y., a corporation of New York Application December 29; 1934, Serial No. 759,639

This invention relates to a structure for supporting web rolls and more particularly to a support for a rotatable reel for use in supporting a plurality of web rolls from which webs are fed successively to a printing machine.

The principal object of the invention is to provide an improved means for regulating axial or endwise adjustment of the reel as required to obtain the desired marginal alignment as the web passes through the printing machine.

It is also an object to provide a mechanism for both rotating the roll supporting reel and adjusting the axial position of same which is of generally improved construction, whereby the device will be simple, durable and inexpensive in construction, as well as convenient, practical, serviceable and eflicient in use.

With the foregoing and other objects in view which will appear as the description proceeds,

the invention resides in the combination and arrangement of parts, and in the details of construction hereinafter described.

The preferred embodiment of the invention is illustrated in the accompanying drawings, where- Figure 1 is an end elevation with parts broken away, and parts in section, showing a reel support and driving mechanism for rotating said, reel and also for providing an axial adjustment thereof; and

Figure 2 isa part elevational and part sectional view taken in the direction of the arrow on line 2 2 of Figure 1.

Two roll supporting spiders Ill-I0, which com- 3 prise the reel structure, are shown mounted on a horizontally disposed shaft ll, each spider being provided with a plurality of arms which are adapted to support a plurality of web rolls in the manner; shown in Figure 1. The ends of said shaft ll, which extend beyond each end of the reel, are supported by brackets i 2 and I 3, and

the brackets are preferably mounted on the machine frame II. A bushing 15 freely mounted on the driving end of the shaft II, is splined as at 20, within a bearing block I6, provided on the bracket I2, and is thereby permitted to be moved axially within the bearing while the shaft II is rotated therein. A gear I! is secured to the driving end of the shaft II, as shownin Figure 2, and abuts one end of the bushing l5. Said gear is preferably driven through a reduction gear drive, which includes a motor driven worm and worm gear l8 and' I9 respectively, and a pinion 2| mounted on a worm gear supporting shaft 22. A bracket 23, secured to the frame It,

has a bearing portion 24, within which one end of the shaft 22 is rotatably mounted. It is to be noted that the width of the pinion 2| is greater than the width of the gear H to provide constant mesh of the pinion and gear teeth when the gear position is adjusted, as will be hereinafter explained.

The opposite end of the reel supporting shaft H has a sleeve 25 mounted thereon, andsaid sleeve is mounted in a bearing block 26, provided on the bracket I 3, in a manner which will permit the sleeve to move axially but not rotative- 1y while the shaft is permitted to rotate within the sleeve. To provide for these conditions, the sleeve 25 is maintained in a fixed axial relation with the shaft by means of an annular internal flange 28 at the outer end of the sleeve which is confinedbetweena shoulder 2'! on the shaft and a collar 3| secured to the end of the shaft. A projection or lug 32 extends radially outward from the sleeve 25 atthe central portion thereof and has a screw threaded opening 33 therein. A shaft 34 rotatably mounted in bearings 35 in the bearing block 26, has a screw 36 thereon which engages the screw thread of the opening 33, and thus provides a means for holding the sleeve against rotation when the reel supporting shaft is rotated.

To move the sleeve .endwise within the bearing block, the screw shaft 34 is rotated. This causes the screw 35 to rotate within the threaded opening- 33.of the projection 32 and thus move the sleeve forward or backward. The said screw shaft may be rotated in any desired manner but is preferably power driven through a reduction drive including a worm and worm gear shown at 31 and 38 respectively. The worm gear 38 is secured to the screw shaft 34, while the worm 31 has shaft extensions 3939 rotatably mounted in bearings lI-Al, the latter being mounted in a housing 42 secured to the bracket I3. A

motor 43, supported on the frame I4, is connected in a driving relation with the shaft 39.

The driving mechanism, which is provided to rotate the roll supporting reel, is arranged in a simple and effective manner at one end of the reel supporting shaft ll, whereas the mechanism provided to adjust the reel in an endwise or axial direction for obtaining marginal align- 'of the shaft H, and the arrangement of the gear I! to slide along the teeth of the pinion 2|,

while remaining in full contact therewith due to the greater length of said pinion teeth, thus provides simple and effective rotational movement.

Means is also provided to limit the endwise movement of the shaft II, which includes two

limit switches

46, 41, each having an

operating arm

44 and 45 connected therewith and -posi-. tioned at either side of a finger 46 secured to the bushing [5, said finger being adapted to engage and rock either of the

arms

44 or 45 to open a

switch

46 or 41 and thereby break'a circuit to the motor 43 when a predetermined limit of movement of said shaft II has been reached.

It will be understood that the invention may be embodied in other specific forms without de- 20 parting from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive, reference being had to the claims rather than to the foregoing description to indicate the scope of the invention.

What I claim is: V

1. In a web roll support, the combination of a roll supporting reel having a shaft, means to support said shaft at each end thereof and means to rotate, same, means to adjust said shaft including a sleeve confined to one end of the shaft and axially movable within the support, a screw in operative engagement with said sleeve to move same coaxially with the shaft and thereby adjust the axial position of the reel, and means to rotate said screw.

2. In a web roll support, the combination of a roll supporting reel, a reel supporting shaft, a sleeve at one end of the shaft and held against axial movement thereon, a bearing block arranged to support the sleeve while permitting axial but not rotary movement thereof, a projection on said sleeve and having a screw thread formed therein, a screw rotatably supported in t the bearing block and engaging said screw thread, and a power drive for rotating the screw to thereby adjust the axial position of the reel.

3. In a web roll support, the combination of a roll supporting reel, a reel supporting shaft,-a sleeve at one end of the shaft and held against axial movement thereon, a bearing block arranged to support the sleeve while permitting axial but not rotary movement thereof, a projection on said sleeve and having a screw thread formed therein, a screwrotatably supported in the bearing block and engaging said screw thread, and a power drive for rotating the screw to thereby adjust the axial position of the reel, a finger extending from said reel supporting shaft and limit switches electrically connected with the power drive, each having an actuating arm extending in the path of said finger, whereby the power,

drive circuit may be broken after a predetermined distance of movement of the shaft in either axial direction.

4. In a web roll support, the combination of a roll supporting reel, 2. reel supporting shaft, a sleeve at one end of the shaft and held against gaxial movement thereon, a bearing block arranged to support the sleeve while permitting axial but not rotary movement thereof, a screw associated with said sleeve and adapted to adjust the axial position of the sleeve, and means-to rotate said screw to thereby adjust the axial position of the reel, a gear on the opposite end of the reel supporting shaft and axially movable therewith, a pinion having teeth along which the teeth of the gear are arranged to move and maintain full running contact while permitting extreme shaft adjustments to be made, and means to drive said pinion.

5. In a rollsupporting reel having a shaft, sleeve members in which said shaft is rotatably supported adjacent each end, means to confine, one end of the shaft to one sleeve, supports in which said sleeves are axially movable, means for moving the confined sleeve axially to thereby move the shaft, and means for rotating the shaft.

6. In a web roll supporting reel having a shaft, a bearing member at each end of said shaft, said shaft being rotatable and confined against axial movement in both of said members, a support for each member and in which they are axially slidable, and meansengaging one of said members to axially move both of said members whereby said shaft and reel are axially moved.

'7. In a web roll supporting reel having a shaft, 9. bearing member at each end 'of said shaft, said shaft being rotatable and confined against axial movement in both of said members, a support for each member and in which they are axially slidable, means engaging one of said members to axially move said shaft and reel, and means associated with one of said members to control said moving means to limit the extent of the aforesaid axial movement.

8. In a web roll supporting reel having a. shaft,

a bearing member at each end of said shaft, said shaft beingrotatable in said members and confined against axial movement in one, a support for each member and in which said members are axially slidable, means to axially move the mem-'' her in which said shaftis confined whereby said shaft and reel-are axially moved, and means to rotate said shaft including a gear secured thereto and axially movable therewith, and another gear in mesh with the first mentioned gear, one of said gears being wider than the other whereby full running contact is assured in all adjusted vpositions of said reel.

9. In a web roll supporting reel having a shaft, a bearing member at each end of said shaft, said shaft being rotatable and confined against axial' -movement in both of said members, a support shaft, said shaft being rotatable and confined against axial movement in both of said members, a support for each member and in which they are axially slidable, means engaging oneof said members to axially move said shaft and reel,

and means movable with said shaft to control said member moving-means to limit the extent of the movement of said shaft in both directions.

11. In a web roll supporting reel, a shaft upon which the reel is supported, a bearing block at each end of the shaft and concentric therewith relatively to which the shaft is axially slidable,

the bearing block at one end of the shaft supporting a sleeve in which the shaft is rotatable, the sleeve being connected to the shaft for axial movement therewith, means to rotate said shaft, means acting through said sleeve to axially move said shaft, and, means movable axially with the shaft and controlling the means to axially move the shaft, to limit the extent of such movement.

12'. In a web roll supporting reel, a. shaft upon which the reel is supported, a bearing block at each end of the shaft and concentric therewith relatively to which the shaft is axially slidable, the bearing block at one end of the shaft supporting a sleeve in which the shaft is rotatable,

means to connect the sleeve to the shaft to prevent relative axial movement therebetween, a. lateral extension on the sleeve, means to engage said extension to move said sleeve and with it said shaft axially in said bearings, an electric motor to actuate said sleeve moving means, a control for said motor, and means movable axially with said shaft to actuate said control and limit the extent of the axial movement of said shaft.

ALBERT J HORTON.