US954688A - Automatic doffer for fly-spinning frames. - Google Patents

Description

N. R. NEWSHOLME. MTOMATIC DOIFER FOR FLY SPINNING FRAMES. APPLICATION FILED SEPT. 29, 1908.

954,688. Patented Apr. 12, 1910.

4 SHEETS-SHEET 1.

W/ 777525 855 M M- N. R. NEWSHOLME.

AUTOMATIC DOFFER FOR FLY SPINNING FRAMES. VAPPLIUATION FILED SEPT. 29, 1908.

954,688, Patented Apr. 12,1910.

M 415' a I Mr/wym- N. R. NEWSHOLME. AUTOMATIC DOFPER FOR FLY SPINNING FRAMES.

APPLICATION FILED SEPT. 29, 1908.

954,688, Patented Apr. 12, 1910.

4 SHEETS-SHBET 3.

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ANDREW a. smmm co PHCTO-LITHUGRAFMERS wsumewa n c N. R, NBWSHOLM-E. AUTOMATIC DOFFER FOR FLY SPINNING FRAMES.

APPLICATION FILED SEPT. 29, 1908.

Patented Apr. 12, 1910.

4 SHEETS-SHEET 4.

NORMAN ROBERT NEXVSI-IOLME, OF KEIGHLEY, ENGLAND.

AUTOMATIC DOFFER FOR FLY-SPINNING FRAMES.

To all whom it may concern:

Be it known that I, NORMAN ROBERT Nnwsnomrn, a subject of the King of Great Britain and Ireland, whose postal address is Holme Royd, Keighley, in the county of York, England, have invented certain new and useful Improvements in and Relating to Automatic Doffers for Fly- Spinning Frames, of which the following is a specification.

This invention relates to improvements in dotfing mechanism for fly spinning frames, and has for its object the arrangement, construction, and application to a spinning frame of certain mechanism whereby the full spools, bobbins, tubes, or the like, may be automatically doffed from, and empty ones inserted on the spindles. The mechanism may be readily applied to an existing frame and the ordinary spindles and fliers are in no way interfered with, with the exception of slightly altered whirls, and the addition of a worm wheel or the like as hereinafter described.

In describing my invention in detail, reference is made to the accompanying sheets of drawings, similar letters indicating similar parts, in which Figure 1 represents a sectional elevation through a spinning frame, with my improvements added. Fig. 2 represents an elevation of a portion of a spinning frame with my improvements added. Fig. 3 represents a detail of rack gearing. Figs. 4 and 5 represent elevation and plan respectively of the flier holder. Fig. 6 (in two portions) represents a plan of the cam gearing and clutches. Fig. 7 represents a plan of the setting on motion. Figs. 8-16 represent diagrammatic views showing various motions hereinafter referred to. Fig. 17 represents an elevation of the mechanism for guiding the whirl bands. Figs. 18 and 19 represent views showing the lifter mechanism. Figs. 20 and 21 are details hereinafter referred to.

In carrying out my invention, I will describe as far as possible, the mechanism and movements as applied to one spindle on one side of a fly spinning frame. Each spindle is doffed in a similar manner, and each side of the frame has separate butsimilar mechanism, that is, the mechanism is in duplicate.

From the main driving shaft A of the machine, (Fig. 7 the gearing hereinafter Specification of Letters Patent.

Application filed September 29, 1998.

Patented Apr. 12, 1910.

Serial No. 455,365.

described is driven preferably by means of a double chain wheel A mounted on the loose pulley of a fast and loose pair, the fast pulley driving the ordinary mechanism in the usual manner. One chain A engages a chain wheel A mounted on one of the mechanism driving shafts, carrying a pinion gearing into wheel A on shaft B, at one side of the machine, the other chain driving the other side, and the shafts B may be provided with clutch mechanism A connected to the setting on rod or the like A, so arranged as to throw the dofling mechanism into or out of gear, as required, this mechanism, however, being of usual construction, and I may adopt other mechanism to the same purpose. WVith a bevel wheel on the shaft B gears a bevel wheel B having on its shaft B a worm B which engages with and drives a worm wheel C mounted on a cam shaft C, and thus imparts a much slower motion to the said cam shaft C than that of the shaft B. On the shaft C are mounted face cams having a single action in some cases and a double one in others. These cams I have designated by the numbers 1 to 13. Engaging with the faces of these cams are ends of levers designated by numbers 1 to 13*, which levers are pivoted to a suitable frame, and held in contact with their respective cams or clutches by means of springs S. The other ends of the said levers in most cases engage sliding clutch members D, mounted on feather keys or the like on shaft B. These members when placed by the cams and levers into operation engage fixed clutch members E, also mounted on the shaft B, and having in connection therewith chain wheels, pulleys, gearing or-the like F, whereby the desired motion is transmitted to the various operating parts hereinafter described.

The first of the operating parts is the flier holder Gr, which is a metal plate in the shape of a fork, (Figs. 1, 4, 5, and 14,) having in each prong a recess G for the flier H to rest in. The spindle J enters the opening G between the forks which are sufliciently wide and of uneven lengths to insure the flier resting therein at the desired angle, the uneven arms tending to turn the flier H as required. The spindle J and flier H are attached together by the usual screw joint. The holder G is mounted on a bar Gr (Fig. 1) having attached thereto racks G4 which are engaged by pinions G mounted on a shaft G (Fig. 3), said shaft being operated by means of the chain K, passing around chain wheels F and F operated by clutch members E, D, and lever 5 and cam 5, (Fig. 6). Intermediate gear wheels are arranged in order to insure the correct travel of rack G, as shown in Fig. 1.

As the flier holder G comes forward and etains the flier, the spindle J is turned in the required direction by means of pinion J (Figs. 1 and 2), mounted thereon being on gaged by worm wheel J mounted on a sliding shaft J which is revolved through the Cam 1 and its lever 1 and gearing shown in Fig. 10. The sliding shaft- J is moved by the cam 13 and lever 13, (Figs. 6 and at the desired time in order to engage the wheel J with the pinion J By this means the flier H is released or unscrewed from the spindle J. Cam 9 and lever 9 then cause the bobbin holder L to move forward (Figs. 1, 6, 11, and 13). This holder L is mounted on a bar L which is carried in racked studs or the like L operated by means of a pinion L similar to the arrangement shown in Fig. 3. The pinion L is operated by means of its cam 9, lever 9 clutch members E and D, chain wheel F chain K and suitable chain wheels as shown in Fig. 13. The full bobbin is gripped by the holder L, as shown in Fig. 21. Cam 7 and lever 7 (Figs. 6 and 11) now come into operation and cause thestep rail M to be lowered, this operation being performed by the gear wheels F and F revolving shaft M and engaging rack M in step rail carrier M At the same time, or practically so, as lever 7 comes into operation, cam No. 1 operates lever 1, and through the gearing shown in Fig. 8, revolves the shaft N which carries on its end a gear wheel N which is in gear with the ordinary lifter motion as shown in Figs. 18 and 19. The lifter motion being operated, the lifter rail N is lowered, the lifter motion being as it were, driven backward. Vi hen the dotling mechanism is set on, a clutch lever T engaging a sliding member T is operated by setting-on rod A, causing the said member to disengage from the member T mounted on shaft T on which is carried a worm wheel T and gear wheels T engaging with the lifter mechanism, as shown in Figs. 18

and 19. The lifter mechanism is thus only operated when its cam 1 or causes same to be put into gear.

Some device is required to provide for the altered conditions as regards the whirl band, which passes in the usual way around whirl )V (Figs. 1 and 2). On the collar Q} of the spindle rail Q is mounted a loose whirl 7 the said collar being provided with an extension to carry the loose whirl, and in the case of an altered frame, the new collars Q would have to be substituted for the old pattern.

The whirl band passes between guide bars ll (Fig. 17) pivoted to the frame of the machine, so as to be capable of a slightly upward motion. This motion is accomplished by means of lever Vi slidably attached to guide bars by means of pin ll and slot the lever being operated by means of sliding lever 1V, connected to the setting on mechanism by means of red A which is preferably connected to the belt fork operating rod A (Fig. 17). Thus, as the dofling mechanism is started, the whirl band is lifted off whirl and placed on to loose whirl and as the spindle is turned by its gearing to unscrew, and screw on the flier the whirl band is on the loose whirl, and the free movement of the spindle is not interfered with. )Vhen the dol'ling mechanism knocks oif, or spinning starts, the guide bars V are moved in the reverse direction, and the whirl band replaced on to the ordinary whirl.

The bobbin holder cam 9, having a double action then causes the bobbin holder to be traveled farther forward, and as the spindle J has fallen clear of the bobbin, the bobbin is moved forward until same is over a peg P mounted on bar P and hinged to a supporting bar P The pegs P are when in their lowest position, somewhat tilted, to facilitate the removal of the bobbin, as shown in Figs. 1 and 12, owing to the bar P being in contact with a projection P formed on the bracket B. An arm 1 carries a sliding cutter bar 0. On the spindle rail Q or other convenient part of the machine frame is carried a bracket R, (Figs. 1 and 12) through which the guide shafts P of the bar P may work. This bracket R carries a movable bar, shaft, or the like R on which empty bobbin pegs R are carried. These pegs are provided with a spring R (Fig. 1), in order to hold the empty bobbins thereon when the bar R is turned in the direction of the ar row. The peg rail or bar P is then operated by means of cam S, and lever 8, and raised by means of chain K through the gearing shown in Fig. 12, until the peg has entered the bobbin, the peg P assuming a vertical position as soon as the projection P has been passed. The bar R is then turned by the cam 3, and its lever 3 coming into operation by means of the gearing and chain K shown in Fig. 10, and the empty bobbin on the peg R is turned until it is over the spindle J, i. e. in the direction of arrow in Fig. 1. As the bar is turned, the spring R comes in contact with a projection R (Figs. 1 and 2), mounted preferably on the bar G below the flier holder G, and is pressed back and allows the empty bobbin to fall on the spindle end. The shaft R is counter bal anced by means of weight B (Fig. 2), and

resumes its original position immediately its function has been carried out. As soon as the full bobbin has been placed on its peg P, the bobbin holder L returns through the action of cam 6, and its lever 6 through the gearing shown in Figs. 6 and 11. Then the empty bobbin has been placed on its spindle in the manner before described, the cam 10 and lever 10*, and cam 2 and lever 2 come into operation (Figs. 6, 9, and 13), and the spindle or step rail M and lifter rail N are raised, the action being the re verse of that shown in Figs. 8 and 11, and the spindle J enters the flier H; cam 13 comes into operation, also cam 12, and the spindle is turned until the flier is screwed on its spindle. As soon as this operation is performed, the flier holder Gr returns to its original position by means of the cam 11 and its lever 11 and gearing shown in Fig. let. The movement of the spindle and flier is continued until a wrap or two of yarn is put on to the empty bobbin. Cam 8 now places its lever 8 and clutch members D and E into operation by a second motion of said cam, and the peg bar P moves farther up. One end of bar 0 carried thereon, carries a bowl 0 working in a cam bracket 0 and as the said bar 0 moves up, it is caused to slide in direction of arrow in Fig. 2, by reason of the configuration of the cam bracket 0 The bar 0 in addition to carrying thereon breakers O (Figs. 1 and 2), carries an inclined projection 0 (Figs. 1 and 2), which as the bar 0 is moved by the bowl 0 tends to wedge the full bobbin on its peg.

The shaft 0 from which a chain K operates the peg rail P is provided on one end with a ratchet quadrant O and catch 0 (Fig. 20). The quadrant and catch serve to keep the peg rail in its first raised position against the action of a balance weight. As the shaft 0 revolves to raise the peg rail P, the catch gradually passes over the quadrant and the rail P drops by its own weight and that of the balance weight, a stop 0 preventing the quadrant O fall ing too far. This causes the thread which extends from the flier to the full bobbin to be broken, as such thread is embraced by the upper or hooked or like portion of the thread breaker 0 The dofling is now completed, and the mechanism knocks ofi, by cam 14 engaging lever Z on rod A and releasing clutch mechanism A and is ready to start spinning, at the same time the lifter motion clutch T T is put into gear, (Figs. 17 and 18).

In order to insure the correct travel of the step rail M, the levers 7 and 10 (Fig. 6) are extended and provided with bowls V, (Figs. 6, 1 1, 13, and 16), to engage cam projections V formed on the step rail M or attached thereto. This arrangement will i be understood from Fig. 16. This arrangement insures the levers and therefore their clutches being thrown out of gear at the correct time.

What I claim as my invention is 2- 1. A doffing mechanism for fly spinning frames, comprising a series of spindles for the bobbins, a flier screwed to each spindle, means for rotating the spindles, means for holding the fliers stationary, means for detaching the spindle from the bobbin and flier, means for displacing the full bobbin, means for placing an empty bobbin on the spindle, and means for actuating said before mentioned plurality of means comprising a shaft, clutches thereon, a cam shaft and operating levers actuated by the cams on said shaft for placing said clutches into and out of gearing. I

2. In automatic doffers for fly spinning frames, a bobbin carrying spindle, a flier screwed to said spindle, means for detaching said spindle from the flier, comprising means for rotating the spindle to detach the flier therefrom, and means for holding said flier stationary while the spindle is rotating, said means comprising a pair of prongs spaced apart and of uneven length, each prong having a recess in its upper face for the flier to rest in, and means for reciprocating said prongs.

3. In automatic dofiers for fly spinning frames, the combination with the spindles and the fliers thereon, means for holding the fliers and bobbins stationary when the spindles are to be detached from said bobbins and fliers, said detaching means consisting of a pinion on each spindle, a sliding shaft, worm gears on said shaft engaging with the pinions, means for rotating the sliding shaft, and automatic means for re ciprocating the shaft to move the pinions and worm gears into and out of gear, said automatic means comprising a lever having one end engaging the shaft and a rotating cam engaging the other end of the lever.

4. In automatic doffers for fly spinning frames, the combination with the spindles and fliers thereon, means for detaching the spindles from the bobbins and fliers, means for holding the fliers stationary, and a holder for the bobbin comprising a fork shaped piece, means for reciprocating the holder to cause the fork to engage with the bobbin to hold the same stationary while the spindle is being detached therefrom, a peg rail having pegs thereon adapted to receive the bobbin from the holder, means for moving the peg rail into and out of operative position and means for automatically actuating all of the beforementioned means from the main shaft.

5. In automatic dolfers, for fly spinning frames, the combination with the spindles, means for moving the same to detach the bobbins therefrom, a peg rail having pegs thereon, a supporting rod to which the rail is hinged, a stop with which the rail engages when in its lowest position for tilting the said rail, means for raising and lowering said rail, means for moving the bobbin from a position over the spindle to a posi tion over the peg whereby the peg will engage with the bobbin as it moves upwardly and means for automatically actuating the before mentioned means from the main shaft.

6. In automatic dotlers for fly spinning frames, the combination with the spindles, means for moving the same to detach the bobbins therefrom, a peg rail for receiving the bobbins, means for moving the bobbins from the spindles, on to the peg rail, means for giving the peg rail vertical movement to receive the bobbins, a sliding thread breaker bar, thread breakers thereon, engaging with the thread to break the same on the downward movement of the peg rail, inclined wedges on said breaker bar adapted to force the bobbins on to the peg rail, and means for reciprocating said bar.

7. In automatic dofiers for fiy spinning frames, the combination with the spindles, a vertically movable step rail on which the lower ends of the spindles rest, means for moving the rail to permit longitudinal movement of the spindles so that said spindles will engage and disengage with the bobbins, and means for insuring the correct travel of said step rail, said means comprising inclined portions on the rail, and levers adapted to engage therewith for stopping the movement of the rail at the proper time.

8. In automatic doffers for fly spinning frames, the combination with the spindles, means for moving the same to detach the bobbins, a peg rail for the empty bobbins, a peg rail for the full bobbins, means for moving the full bobbins from the spindles to the peg rail for the full bobbins, and means for revolving the empty peg rail to place the empty bobbin in position over the spindle, springs on the empty peg rail engaging with the empty bobbins to hold the same in place, and a movable stop adapted to engage with said springs to release the same when the empty bobbin is in place over the spindle.

9. In automatic doffers for fly spinning frames, the combination with the spindles,

means for moving the same to detach the bobbins, a peg rail having pegs thereon, means for raising the same, means for moving the full bobbins from the spindles on to the pegs, means for lowering the peg rail. a thread breaker, inclined cam guides for the same whereby the breakers will engage with the thread to break the same, a shaft carrying a ratchet to hold up the thread breaker as it rises and allowing the same to fall by means of a balance weight as soon as the thread breaker has reached its highest point.

10. In automatic doffers for fly spinning frames, the combination with the spindles and the fliers, means for moving the same vertically to detach the bobbins and fliers therefrom, a reciprocating fork engaging with the flier to hold the same stationary while the detaching operation is being carried out, a reciprocating bobbin holder for moving the bobbin laterally from otl the spindle, a vertically movable peg rail hav ing pegs thereon, for receiving the full bobbins from the bobbin holder, an oscillating empty peg rail for delivering the empty bobbins to a position over the spindle, a vertically movable step rail, supporting the lower end of the spindles, breakers for breaking the thread, a sliding bar for said breakers andmeans for automatically actuating the before mentioned means from the main shaft.

In witness whereof, I have hereunto set my hand, in the presence of two witnesses.

NOltlliAN ROBERT NEWSHOLME, I'Vitnesses Josnrr-r P. KIRBY, J. J. BOTTERILL.

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