US2513209A - Dyeing machine - Google Patents

Description

IF. ROSELENE- DYEING MACHINE June 27, 1950 INVENTOR. I FRANK ROSELEHE ATTORNEY F. ROSELENE DYEING MACHINE June 27, 1950 2 Sheets-Sheet 2 Filed March 2, 1946 INVENTOR. FRANK ROSELEHE ATTORHEY Patented June 27, 1950 UNITED STATES PATENT OFFICE DYEING MACflINE Frank Roselene, Paterson, N. J.

Application March' 2; 1946, Serial No. 651,656

The present invention relates to improvements in equipment used for the winding and unwinding of materials supplied: inrollform, such as cloth, paper, and the like. More particularly, though not exclusively; the invention concerns a driving mechanism to be. used. in: connection with a dye jig for coloring; textile fabrics;

One of the prerequisites for obtaining-a uni at a substantially uniform speed. Moreover; when the material is unwound from. one roller 4' Claims. (Cl. 242555) and wound upon another, it is obviously desirable that both rollers be driven at substantially the same circumferential velocity. Thiszis com plicated by the fact that the diameter of the: leading roller increases as that ofthe trail-roller decreases, and recoursehas beenhadtin the past to driving only the former by means of gears alternatively connectable with eithershaft; Variable speed devices and adjustable brakingimec'he anisms have been proposed toregulate the-speed of the fabric, but these more or less cumber times detrimental strain upon the material tobe processed, paricularly where a. considerable braking movement is applied to the trailing member. Unrestricted motion of the latter, on the other'hand, may give rise to equally harmful os-- cillations caused by the resiliency of thefabric;

Oneobject of the present-invention is to provide a simple andeffectivedri'ving mechanism that eliminates the above shortcomings by' coin-- prising a pair of rollers which are positive-driven from a common power source.

Another object of this invention is to provide a pair of driven rollers rotating in synchronism at a constant and conveniently adjustable circumferential speed.

A further object of the invention is to eliminate, in an apparatus of the kind described, the danger of overstressing the fabric.

A still further object is the elimination of excessive braking action.

Reference is now made to the accompanying drawing showing a preferred embodiment of the invention.

Fig. l is an elevational cross section of a mechanism according to the invention, associated with a dye jig;

Fig. 2 is a fragmentary horizontal section on a larger scale, taken on line 22 of Fig 1;

Fig. 3 is a section along line 3-3 of Fig. 1.

According to the invention, there is provided a drive shaft ill bearing the main roller I I which is flanked by two auxiliary rollers l2 and (3. The shaft ID, as well as two guiding rollers'M and i5; are journalled in bearings unitary with or otherwise secured to the two halves of the frame It of' the dye jig, the two halves being connected by-tie-rods I! which are surrounded by spacers I8 and engaged by end nuts IS. A bottom roller 20 is journalled in the vat 2| containing' the liquid;- the vat is provided with a drain 2| and may be suspended between rods 22 which are supported by lugs 23; these lugs are suitably secured to frame I 6. Additional support for the vat 2! may be provided in the form of blocks 24, disposed at spaced intervals along its bottom.

The auxiliary rollers l2 and I3, as is best shown in Fig. 2, are journalled in bearing blocks 25, twosuch blocks being provided for each roller at the two ends thereof; The blocks are slidable in' horizontal channels formed by extensions of the frame I6, and springs 26 act upon these blocks tending to press the auxiliary rollers l2, I3 against the main roller ll.

adjusting screws '21.

Mounted upon' each half of the frame 6' is a standard 28: comprising two substantially vertical channels which accommodate the slidable bearing blocks 29. Two rollers, 30 and 31, are lodged" in respective pairs of opposite bearing blocks 29 andconstitute the leading and trailing members of the system. In the drawing, roller 3! has been shown'fully loaded; if this is assumed to be at the beginning of an operating cycle, the material is to be unwound from roller 3| and wound upon roller 30 which thus acts as the leading member. Power is derived from a motor (not shown) by means of a pulley 32 as fastened to the drive shaft Ill.

The manner of operation of the mechanism will now be apparent to those skilled in the art. The material taken from roller 3| is initially inserted between the main roller l I and auxiliary roller l3, conducted past the guiding roller l5, around bottom roller 29, and past guiding roller I4, inserted between rollers II and I2, and finally wound around the leading roller 30. The pulley 32 is driven by the motor at a suitable, preferably constant, speed which the roller H communicates by friction to the rollers l2 and I3. The leading member 30, sliding freely in a vertical direction, is forced by gravity to ride The tension of the springs 26 may beregulated by means of on the roller l2 and thereby to rotate at a, peripheral speed substantially equal to that of the three rollers H, [2, and I3. As the diameter of this member increases, its R. P. M. will drop, but the peripheral speed caused by frictional contact with the roller l2 will not change. At the same time, the growing radius will gradually raise the shaft of roller 30 until the latter finally reaches a position corresponding to the initial position of roller 3|, as shown in dot-dash line in Figs. 1 and 3.

Meanwhile, in identical manner, the trailing member 3| is forced to follow the movement of roller I 3 and thus to rotate at a peripheral speed equalling that of the other rotating members. As the diameter decreases, the roller 3| gradually descends and finally comes to rest in a position likewise indicated by a dot-dash line in Fig. 1. The material may now be subjected to further treatment in the jig by simply reversing the direction of rotation of pulley 32.

It may be safely assumed that the weight of even the unloaded leading roller-will provide sufficient pressure toprevent any appreciable slippage thereof, particularly since no additional pull need be exerted by this member, transportation of the fabric being assured by the cooperation of roller H with rollers I2 and 13. On the other hand, this vertical pressure may be increased by the application of extra weights. Again, horizontal spring pressure may be optionally applied only to auxiliary member l2, or l3,,or neither of them,

without departing from the scope of the invention which is based on the idea of driving one or more rollers at substantially theperipheral speed of a central driving member.

treated, whereby such rate of travel may be conveniently adjusted to any desired value, constant or otherwise.

I claim:

1. A driving mechanism for use with a dye jig,

comprising a support, a cylindrical roller hori- This speed corresponds to the rate of travel of the material being 2. A dyeing machine of the character described comprising a mounting frame, a central roller journalled in said frame; a pair of idlin rollers slidably journalled one on each side of said central roller; a second pair of rollers slidably journalled in said frame and riding upon said pair of idling rollers, and a plurality of guide rollers by which a flexible web of material may be wound from one of said second pair of rollers riding on said idling rollers onto the other.

3. A dyeing machine of the character described comprising a mounting frame; a central and driven roller fixedly journalled in said mounting frame; a pair of idling rollers journalled on either side of said central roller in frictional contact with same, said idling rollers having slidable bearings under spring tension forcing same against said centrally driven roller, a second pair of rollers having slidable bearings, said bearings bein slidable in a vertical sense, and said rollers being located parallel to and on top of said pair of idling rollers, and said rollers being furthermore in frictional contact with said idling rollers.

4. A dyeing machine of the character described comprising a mounting frame; a driven roller centrally journalled in said mounting frame; a pair of idling rollers journalled in bearings horizontally slidable in said mounting frame, said bearings being spring loaded whereby same are pressed against said central roller in a frictional connection; adjustable means for varying said spring tension on said idling rollers, a pair of cylinders containing'a web of flexible material, said cylinders having bearings vertically slidable in said mounting frame, one of said cylinders being located directly above each of said idling rollersand parallel to same, and'a plurality of guide rollers whereby said flexible web of material may be wound with constant peripheral speed from one roller onto the other, by means of a frictional drive through said idling rollers.

- FRANK ROSELENE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Butterworth May 15, 1934

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