US1649751A - Driving mechanism of spinning and analogous machines - Google Patents

Description

Nov. 15, 1927. 1,649,751

W. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNING AND ANALOGOUS MACHINES Filed Nov. 1, 1926 3 Sheets-Sheet 1 NEv. 15, 1927.

w. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNlNG AND ANALOGOUS MACHINES Filed Nov. 1. 1926 3 Sheets-Sheet a 2 2 z zxzz zzzzww A ATTORNEY Nov. 15, 1927. 1,649,751

W. PRINCE-SMITH ET AL DRIVING MECHANISM OF SPINNING AND ANALOGOUS MACHINES Filed Nov. 1, 1926 s Sheets-Sheet s zrrm/m Patented Nov. 15, 1927.

UNITED STATES,

PATENT DRIVING MnoHAnIsi/i or srrnnme AND ananoeons acnrnns,

Application filed November 1 ,"1926, Serial No. 145,663, and in Great Britain December 1, 1325.

This invention relates to roving, drawing, spinning and like machines, more particularly to the mechanism for driving certain elements'of those machines, and it has for its object to overcome several disadvantages presented by the present driving means.

In roving drawing, or spinning machines it is usual at present to actuate the front rollers by means of twist gearing located at one end of the machine, that is to say, at the driving end, and to actuate the back rollers'by means of draft gearing located at the oppositeend of the machine; the intermediate rollers or carriers being driven by means of spur gearing connecting them with the back rollers.

One ofthe disadvantages of this present arrangement is that power must be transmitted to the back rollers throughout the entire length of the front BOllG1'S Wl1lCl1, in the case of machines or frames of great length imposes undue strain on the front rollers and their shafting and bearings. It is also objectionable in that the draft end of a machine is usually in thecentre of a room and the compulsory guarding of the draft gearing masks a large portion of .the machine.

Another disadvantage of the present ar rangement is that the back rollers cannot be moved for any purpose without disturbing the change wheels and without disengaging other gear; and, in the case of the usual method of driving the carriers the gearing not only takes up considerable space butit is the cause of vibration.

To overcome these disadvantages this invention consists in locating both the twist gearing and the draft gearing at one end, namely the driving end of the machine, so associated and arranged that adjustments between the centres of the back and front rollers are capable of being effected without disengaging the gearing. The invention also includes the driving of the carriers directly from the draft gearing so that their speed is proportional to that of the back rollers.

The draftgearing is therefore carried by adjustable supporting means whereby it is maintained in correct relation to or association with the twist gearing in accordance with the required conditions for the time being obtaining-the si pporting means cooperating to maintain the gearing constantly in mesh unless and until change wheels of other dimensions are required.

In accordance with one constructional form of the invention the front rollers may be driven by twist gearing of the usual form which is actuated in the ordinary manner from the cylinder shaft, and the back rollers may receive motion by means of a change wheel carried by and at the driving end of the front roller shaft and meshing with an intermediate pinion the axis of which is adjustable vertically and horizontally and which inturn engages a second change wheel whereof the axis is not adjustable. The axis of said second change wheel carries also a spur wheel meshing with a second intermediate pinion carried by an angularlyadjustable lever and engaging a second spur wheel borne by the back roller shaft which supports a second lever adjustable angularly aboutthe axis'of said second intermediate pinion. Means are provided for locking or securing the adjustable parts in any required position of 'adjustment.

By this construction and arrangement ad justment of the back rollers relatively to the front rollers can be effected without disturbing the meshing of any of the'gearin The outer carriers may be driven from the driving end of the machine by meansof an adjustable chain or other suitable drive actuated directly from the aforesaid back roller "or draft gearing, and the inner carrier or carriers maybe driven from the op posite or what has been heretofore the draft end of the machine, by means of a similar adjustable chain or other suitable drive actuated from that end of the back roller shaft.

In the accompanying drawings one convenient constructional embodiment of the invention is illustrated quasi-diagrammatically by way of example as applied to one type of spinning machine, but it will be readily understood that the invention is equally applicable to other types of spinning and analogous machines.

Figure 1 is an end view and Figure 2 is a front view of a portion of an end-stand and illustrating only the driving mechanism or twist gearingfor the front rollers of the machine.

Figure 3 is an end view, Figure 4 is a front new, and Flgure 5 1s a plan view, of

the upper part of the whole end stand, illustrating the driving mechanism or draft gearing for the back rollers, and the driving means for the outer carrier rollers; the twist gearing being omitted for the sake of elearness.

Referring firstly to Figures 1 and 2. 1 is a portion of one half of the end-stand or main frame of the machine at the head of which is located the top-board 2 upon which are disposed the creel pegs 3, 3, and forwardly from which extend the usualinclined carriage stands 1 that support the back rollers 5, 5, the outer carrier rollers 6, 6, 7, 7, and the middle or intermediate carrier rollers 8, 8. i y a 9, (omitted ilrFigure 2 for the sake of clearness) is one of the upper front rollers, and are lower front rollers which are borne in the usual manner by the front roller shaft 11 extending lengthwise of the machine and supported in bearing brackets such as 12 boltedto the end-stand 1, and also supported intermediately by bearings such as 13 formed on or connected with the inclined carriage stands 4 at their lower or front ends; the rollers 9 being driven frictionally, as usual, by the rollers 10 which receive motion from twist gearing of the usual form actuated in the ordinary manner from the main cylinder shaft 14:.

On the main cylinder shaft 1 1 is keyed a sprocket wheel 15 with which an endless chain 16 engages and also with a sprocket wheel 17 keyed upon or otherwise secured to an arbor 18 carried by a slotted bracket 19 suspended from an extension of the hearing bracket 12; and on said arbor 18 there is also mounted a change wheel 20, which meshes with a gear wheel 21 keyed or other wise secured upon a spindle 22 carried adjustably in a curved slot 22 formed in bracket 19. A pinion 23 is also keyed or otherwise rotatably mounted on spindle 22 and meshes with a gear wheel 24: carried by the front roller shaft 11.

25 and 26 (see Figure 8) are slots formed in the end-stand 1 in order to enable adjustments, required by different sized change wheels, to be effected in the angular position of the slotted bracket 19 which is clamped to the end-stand by bolts passing through said slots.

This construction and arrangement of twist gearing is usual and well-known.

Referring now to Figures 3, 4t and 5, the back rollers 5, 5, are driven at each side of the machine by the following arrangement of draft gearing. a

Removably secured upon the front roller shaft 11 is a change wheel 27 which meshes with an intermediate pinion 28 carried by an arbor 29 borne by a slotted plate 80 which is clamped adjustably at 31 in a horizontally slotted extension 32 of a bracket 33 bolted at 31 to the end-stand 1. The pinion 28 meshes with and drives a second change wheel 35 mounted on an arbor 36 carried in a bearing formed on the extension 32 of bracket 33. The slots in said plate and extension 32 provide for any adjustments which maybe necessitated by the use of different sized change wheels.

At the opposite endof the arbor 30 to the change wheel there is keyed a pinion 37 (Fig. 1) which meshes with an intermediate pinion 38 mounted upon an arbor 39 borne at the upper extremity of one limb of a bell-crank lever 10 carried pivot-ally upon the arbor 3 6 and having its other limb adjustably clamped at 11 in an arcuate slot 12 formed in a projection 43 on the bracket 33, and, articulated to the arbor 3!) is a lever {14; anchored at its upper extremity on a fixed ccntre about the back roller shaft 15 upon which is keyed a pinion 16 with which said intermediate pinion 38 meshes.

When, therefore, it is desired to alter the distance between the centres of the front rollers and the back, rollers to suit some variation in the quality of yarn, this may be done with great ease and simplicity by merely slackening the nut clamping the bolt '11 and moving the levers and 44; inwards or outwards angularly until the desired change in the position of the back rollor shaft 45 has been secured when said nut is re tightenedg the various change wheels and pinions of this particular system of gearing remaining in mesh while such adjustment is being effected. At the right hand side of Figure 3 the centres of the back and front roller shafts -15 and 11 respectively are shewn as closer together than shewn at the left hand side of the figure, which alteration in position has been taken up by making the adjustment described above. i

In addition to the advantages arising out of the maintenance in constant mesh of the various elements of the gearing there is also the advantage inherent in the above de scribed arrangement that the change wheels are of smaller diameter than usually employed (because they are imlepcmlent of the position of the rollers) and they are more easily withdrawn and exchanged than in the arrangements at present in use; and,

furthermore, as will be obvious from the drawings, the arrangement of gearing of this invention is less cumbersome and is more compact for the purpose of guarding than those now in use. p i

The outer carrier rollers 6, 6, and 7, 7,

are driven from the same end of the machine as the above described gearing and in the following manner The shaft 36 is prolonged inwardly through appropriate bearings carried by the end-stand 1 and on its inner extremity there till ill!

is keyed a sprocket wheel 47 while similar sprocket wheels 48 and 49 are keyed upon the ends of the shaft of each lower outer carrier roller 6 and 7 respectively and are disposed in the same vertical plane as the sprocket wheel i? so that an endless chain 50 passing over all three sprockets transmits motion from shaft 36 to said outer carrier rollers.

In order to compensate in this chain drive for adjustments of the carrier rollers 6 and 7 upon the carriagestands 4 an intermediate or jockey sprocket wheel 50 is carried upon an arbor that is disposed adjustably in a vertical slot 51 formed in a bracket 52 secured appropriately to the machine frame on the inner side of the end-stand 1, by which means the correct tension of the chain 50 is maintained in accordance with the particular adjustment, for the time being, of the outer carrier rollers.

It will be observed that said outer carrier rollers are therefore driven directly from the back roller gearing and at a speed which is proportional to that of the back roller shaft.

The middle carrier rollers 8 are driven independently from the opposite end of the machine in a manner similar to the driving of the outer carrier rollers, that is to say, from a sprocket wheel keyed upon. the end of the back roller shaft 6&5, an endless chain passing over said sprocket wheel and over another keyed upon the middle carrier roller shaft and also over an adjustable tensioning jockey sprocket wheel mounted similarly to the jockey 50 as will be readily understood from the above description and from the drawings; this being the only roller driving mechanism located at the end usually termed the draft end of the frame.

it will be understood that various modifications may be effected in the details of construction, and arrangement of the several elements or mechanisms which are embodied in the invention, in order to suit the requirements of machines of the different kinds to which the invention is susceptible of application, without departingfrom the invention, provided that the alterations in design or arrangement retain the association of the twist and the draft gearing at the same end of the machine and also provided hat the principle of driving the several rollers in the manner described is not materially affected.

Vfhat we claim is 1. Roving, drawing, spinning and like machines including variable twist gear-- machines including variable twist gearing and variable draft gearing, characterized by the fact that said variable draft gearing is carried by adjustable supporting means whereby it is maintained in correct relation to and association with said variable twist gearing and at the same end of the machine therewith.

3. In roving, drawing, spinning and like machines including variable twist gearing and variable draft gearing both located in associated relationship at the same end of the machine and including back rollers, front rollers and carrier rollers, driving said variable carrier rollers directly from said draft gearing and in such a manner that their speed is directly proportional to the speed of said back rollers.

4. A machine of the character described, including a frame, variable twist gearing and variable draft gearing associated with and located at the driving end of the frame, and means for adjusting the centers of the back and front rollers, respectively, of said gearings without disengaging the main gear elements. a

5. A machine of the character described, including a frame, variable twist gearing and variable draft gearing associated with and located at the driving end of the frame, means for adjusting the centers of the back and front rollers, respectively, of said gearings without disengaging the main gear ele ments, said adjusting means including a double bell-crank lever pivoted to the frame and in the outer end of which is journaled the back roller, and means for adjustably connecting the other free end of the lever to the frame for locking the back roller in various adjusted positions.

In testimony whereof we affix our signatures.

WVILLIAM PRINCE-SMITH. DAVID WATERHOUSE.

characterized by said variable nu Am!

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