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US 1790582 A
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Description (OCR text may contain errors)
Jan. 27, 1-931. a. GRAHAM ET AL 0,
' s'rocx WINDING MECHANISM FOR CALENDERS Original Filed o t. 1, 3
- INVENTORS. Thornton G.raham Y Ph'mp V. Tlppet Patented Jan. 27, 1931 UNITED .s-r 'rEs PATENT OFFICE 'rnonn'ron e. smut, or me, AND rmmr v. mm, or mnnzooa ems, omo,
ASSIGNOBS To run venom: nmcnmnnv comm, or entrances FALLS, onro,
A CORPORATION OF OHIO STOCK-WINDING FOB CALENDEBS Application filed October 1, 1928, Serial No. 685,818. Renewed February 4, 1928.
This invention relates, as indicated, to a new and improved stock winding mechanism especially adapted to receiverubber stock as it is delivered from calenders, and refers Heretofore, it has been the practice to support a single stock receiving roll adjacent the delivery side'of the calender and to wind the stock thereon with a sheet of fabric liner between each convolution. Whenthe roll is as full as it is convenient to handle, 1t is necessary to stop the calender during the interval required to remove the completed roll of rubber and fabric sheets from the winding position and to substitute in place thereof a bare stock roll. At the same time a new.sup-' ply of fabric liner is located in the ordinary manner and the winding process repeated. Such practice has many inherent disadvantages, a particular one being the loss of considerable valuable time during each changing of rolls. Our invention consists of novel mechanism conveniently mounted at the delivery side of the calender, which is adapted to receive the rubber sheet as it is delivered,
and to wind such sheet onto stock rolls to the usual size without the stopping of the calen' der during the changing of such rolls. An object of the invention resides in the simplicity of the present mechanism.
A further objectof our mvention is to provide a continuously operable stock winding mechanism which may be easily and expeditiously attached for operation adjacent a calender, and which may be quickly attached to the operating, elements of the calender so that the winding mechanism will be driven therefrom. To the accomplishment of the foregoing and related ends, said invention then consists of the meanshereinafter fully described and particularly pointed out in the claims. 4
The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of the various mechanical forms in which the principle of the invention may be used;
In said annexed drawing:
' Fig. 1, is a side elevation of the novel stock windmg mechanism, showing a calender diagrammatically 5 Fig. 2, is a view taken on line 2--2 in Fig. 1, illustrating the driving connections between the calender and stock winding mechanism; and,
Fig. 3, isa diagrammatic plan view of a modification of our invention While the showing of the invention in the drawings and the following description relates more particularly to a stock winding device for rubber calenders, it is obvious that the invention might be embodied in winding mechanisms to be used with other machines where it is desired to continuously feed away and wind up the material produced thereby.
The calender, indicated by numeral 10, is of any of the well known types and comprises end standardsld and a plurality of parallel rolls 12 between which the rubber is conditioned to the proper width and thickness. The rolls are arranged horizontally one above the other, and rubber, in the form of a'batch 13, is fed between the upper two. Detailed description of the calender is deemed unnecessary in view of their well known construction. Generally the several rolls are driven through suitable gears mounted on their ends which project through standards 11', there being indicated in Figs. 1 and 2, the car 15 of the lower rolls only. r
T e sheet of material 16 produced by feeding the rubber 13 betweenthe'rolls passes ar dunder the lower roll and is delivered to he rear of the calender, from where it is wound up on suitable stock shells or rollers. On account of the adherent condition of the uncured rubberv sheet it is necessary to provide a sheet of fabric liner between each convolution of the rubber on the stock roll. As has been hereinbefore described, the usual practice is to hold a single stock roll adjacent the delivery side of the calender until sufiicientlyfilled, and then to stop the calender until the filled stock roll can be removed and an empty one put in place.
One of the main'purposes of this invention is to provide a mechanism for continuously winding the stock as received from the calender and to eliminate the necessity of stopping the calender during the changing of.
Carried on suitable transverse shafts 22v journaled' in the members 20 isan endless conveyor belt 23 passing around drums 24 and 25 secured to said shafts. The front end of the conveyor 23, or in other words, the drum 25, is located a suflicient distance forward of the uprights 19 of the framework to permit the positioning of such end of the belt closel ad acent the, lower roll of the cal-- ender. T e belt 23 is adapted to be driven at a speed equivalent to the surface speed of the lower calender. roll so that no stretch will occur in the rubber sheet between such roll and the conveyor belts. As herein provided,
the belts mayr be driven from the driving mechanism for the calender rolls. Meshing with the gear 15 of the lower calender roll is a chain of gears 27 which transfer power to a stub shaft 28 mounted in a bracket 29 on the rear of the calender frame 11. The inner. end of shaft 28 is provided with a squared portion 30 on which is slidably carried a collar 31-, fen a purpose to be resently described. The drum shaft 22 of the winding mechanism is provided with a spur gear 32 which meshes with a pinion-33 on a shaft 34 journaled in the longitudinal members 20. The outer end of shaft 34 is also squared, and
when the winding mechanism is moved into operative position the end of shafts 34 and 28 abut in coaxial alignment. .The collar 31 is then moved to couple the two shafts together and driving relation is established etween the calender and'the conveyor belt. In operation the rubber sheet, indicated by 16, is led from the calender roll to the continuously moving conveyor belt 23, on which it is carried to winding devices. Mounted on each side. of the framework 18 are a pluralit of spaced vertical brackets 40, these brac ets extending from the members 20 upwardl beyond the top of the conveyor belt 23. 11 one side of each bracket isprovid'ed a vertical slot 41, open at the top' and extend ing to the level ofthe conveyor belt, in which slots may be received the ends of a stock receiving roll 42. It will obviously be understood that the brackets 40 will be arranged in pairs, transversely opposite one another so as to hold the rolls 42 across the feed of the rubber stock on the conveyor belt. As indicated in Fig. 1 at 43, the empty stock receiving roll, when first placed in a set of the slots 41, rests directly on the surface of belt 23 and is adapted to be rotated by the move- Consequently the movement of the belt will cause the rubber sheet to ment of such belt.
become wound onto the roll 42 which upon the increase inits size, is permitted to gradually move upwardly in the vertical slots 41. Also provided on the brackets are other slots or bifurcations 44 in which extra stock receiving rolls may be held in reserve, as at 45. When the roll 42 in one position hasbeen wound with the limit of rubber stock convenient to handle, the sheet of rubber is out ahead of the next winding position and caused to be rolled up on a second stock receiving roll which has been .takenfrom the slots 44 and placed into a pair of the slots 41.. 'While the new roll 42 is being wound with its supply of rubber stock, the previously completed roll may be removed from the framework 18 and an empty roll be placed in reserve in the slots 44. In this manner, we provide a very simple andefiicient mechanism which is adapted to receive the sheet of. rubber stock as continuously fed from the calender and to wind such sheet upon ordinary stock rolls.
On account of the plastic condition of the I I rubber sheet as delivered from the calender, it is necessary to supply between each convolution of the rubber as it is wound on the rolls 42, a sheet of fabric 46, cmmonly known as a liner. For convenience of manipulation, we provide on the frame work 18 means for holding rolls of such fabric liner adjacent the position of each pair of brackets 40. Such means herein consists of supporting brackets 47, mounted on the sides of the framework 18 inopposed pairs, and provided at their lower ends with looped portions 48' in which are received the ends'of the shells or rolls 49 on which the liner is wound. The liner is led from such roll to the adj acentroll 42, and is drawn therefrom by the winding action of the rubber stock upon such stock as a roll is filled to the limit, the stock may be wound on such reserve rolls without requiring a suspension in the operation of the calender during the changing of the rolls.
Fig. 3 illustrates diagrammatically how this principle may be carried out.
Other modes of applying the principle of our invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.
We therefore particularly point out and distinctly claim as our invention.
1. A mechanism of the character described comprising a portable framework, an endless Y conveyor belt, sai
tioned for continuously winding the material said calender, means for ho ding conveyor belt carried thereby, brackets mounted at each side of said framework, vertical slots in said brackets adapted to receive the ends of a stock receiving roll, said slots being adapted to position the roll transversely of and in contact with said belt, and
other slots in said brackets wherein a stock receiving roll may be held out of contact with said belt.
2. A mechanism of the character described comprising a portable framework, an endless conveyor belt carried thereby, a plurality of means for holding stock receiving rolls transversely of said belt, and means for supporting other rolls adjacent each of said stock receiving rolls, all of said rolls being adaptedside of said framework, vertical slots in said brackets adapted to receive the ends of a stock receiving roll, said slots being adapted to position the roll transversely of and in contact with said belt, and other slots in said brackets wherein a stock receiving roll may be held out of contact with said belt.
7. The combination with a calendering machine, of a winding device comprising a conveyor belt, means for driving said conveyor belt from the driving mechanism of said machine, means for holdin a stock receiving roll transversely of saidielt and in contact therewith,-and means for holding a second stock receiving roll whereupon the material carried on said belt may be wound after said first named roll has been filled, said second holding means holding said second stock receiving roll out of contact with said belt.
' 8.. A wind-up device comprising a belt, a pair of wind-up rolls arranged in line with each other for use alternately in winding up a single strip of stock on the belt, and means for positionin the rolls. individually either in contact with the belt for winding or elevated above the belt in an inactive position. Signed by us this 26th day of September,
' THORNTON G. GRAHAM.
PHILIP v, TIPPET.
portable framework mounted adjacent said machine, a longitudinally extending conveyor belt carried by said framework and having one end extending contiguous. to one of said calender rolls, means for detachably connecting said belt with the driving mechanism of the calender rolls, means for holding stock receivin rolls transversely of the socket rolls being posias delivered from said' calender on to said belt, and means for supporting rolls of fabric liner adjacent each of said stock receiving rolls. 5. The combination with a calendering machine, of a portable framework, an endless conveyor belt carried thereby, quick detachable means for operabl connectln said conveyor belt with the mac anism of a stock receiving roll transversely of sald conveyor belt, and means for holdin a second stock receiving roll, whereupon t e material carried on said belt ma first named roll has en filled;
6. A mechanism of the character described rivin comprisin a framework an endless conveyor. belt carrie thereby, brac ets mounted at each be wound after said