US1252404A

US1252404A - Doffing device for spinning-machines.

Info

Publication number: US1252404A
Application number: US16923317A
Authority: US
Inventors: John P Crane
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-05-17
Filing date: 1917-05-17
Publication date: 1918-01-08
Anticipated expiration: 1935-01-08

Description

J. P. CRANE.

DOFFING DEVICE FOR SPINNING MACHINES.

APPLICATION FILED MAY I7. I917.

Patented Jan. 8, 1918i 4 SHEETS-SHEET1.

WITNESS:

I N VEN TOR, la/uw 172/22: R 'rane ATTORNEY.

J. P. CRANE.

DOFFING DEVICE FOR SPINNING MACHINES.

APPLICATION FILED MAY, 1917.

Patented Jan. 8, 1918.

4 SHEETS-SHEET 2 INVENTOR, John P? Qf'rarza,

@Qwv Jw. @ww/ WITNESS:

A TTORNE Y.

J. P. CRANE.

DOFFING DEVICE FOR SPINNING MACHINES. APPLICATION FILED MAYII. 1917.

L252, Patented Jan. 8,1918.

4 SHEETSSHEET 3.

II 2f 27 1;

Q 20 5 /4 a): 3 Z; 22

O Q g 0 II 5 i WITNESS: h IN VEN TOR, W rfiikll 1? mm,

A TTORNE Y.

J. P. CRANE.

DOFFING DEVICE FOR SPINNING MACHINES.

APPLICATION man MAY-17.1917.

Patented Jan. 8, 1918.

4 SHEETSSHEET 4- W] TNESS; INVENTOR,

w John Crane,

A TTORNEY.

D STA DOFFING DEVICE FOR SPINNING-MACHINES.

Specification of Letters Patent.

1 Patented Jan. 8, 1918.

Application filed May 17, 1917. Serial No. 169,233. v

To all whom it may concern:

Be it known that I, JOHN P. CRANE, a citizen of the United States of America, residing in Indian Orchard, in'the county of Hampden and State of Massachusetts,have invented certain new and useful Improvements in Doifing Devices for Spinning-Machines, of which the following is a specification.

This invention relates to improvements in attachments to spinning machines, such attachments being known as dofiing devices for simultaneously removing all of the filled bobbins from the spindles and for simultaneously replacing all of the empty bobbins orspools on the winding spindles. A common practice, at the present time, is to manually remove the filled bobbins, one by one from the spindles, which operation necessitates shutting down the machine for a considerable period, not only while the filled bobbins are being removed but also while the empty bobbins are being put in place on the spindles.

My invention, broadly considered, comprises a frame work which extends the length of the machine and is adapted to be operated by suitable means, preferably located at one end of the machine for removing the filled bobbins. This framework includes a bar formed with openings, which bar is designed to be slipped down over the filled bobbins and is provided with suitable means for engaging or gripping the bobbins to simultaneously effect the lifting of all of them free from the spindles and into a position that is out of the path of the empty bobbins, which at this point, in the operation, are lowered past the filled bobbins and into position on the driving spindles. Suitable devices are provided for simultaneously releasing all of the filled bobbins, permitting the same to fall by gravity into a suitable receptacle. The apparatus which is used to place the empty bobbins is first raised into its initial position after the operation of removing the filled bobbins has taken place.

Referring to the drawings:

Figure l is a side elevational view showing the two frames for removing the filled bobbins and for replacing the empty ones, with means for operating the same during the removal and filling operations;

Fig. 2 is an end elevational view of Fig. 1 looking from the right of this figure and showing the devices for operating the frame which removes the filled bobbins and the cords which control the frame and which carry the empty bobbins Fig. 3 is an enlarged end elevational view looking from the left of F 1, as indicated by the arrow and clearly showing the rack' and pinion construction which is operated by the hand wheel that controls the up and down movements of the frame for taking off the filled bob-bins, and also the hand wheel which controls the movements of the frame for lowering the empty bobbins into place on the spindles; 1 Fig. 4 is a partial transverse sectional View on the line 4-l of Fig; 1 showing the position of the attachments'before'the filled bobbins are removed and before the empty bobbins are lowered, also illustrating one hand wheel for operating the cableswhich controlsthe means for replacing the empty bobbins; i

Fig. 5 is a view similar to Fig. 4 showing the bobbin removing frame after it has just been lowered to engage the filled bobbin; the gripping devices for engaging'the filled bobbins being shown in contact therewith; Fig. 6 is a'view similar to Fig. 4 and which might properly be'termed the third position in the operation of removing the filled bobbins,which shows the filled bobbins swinging intothe dotted line position Fig. 7 illustrates the position of the empty bobbins after they have been lowe'red into engagement with thespindles and the position that the bobbin-releasing device assumes to free the filled bobbins from the bobbin removing frame; F

Fig. 8 is a detail end view of a portion of the shaft which supports the bobbin-removing frame and illustrating the hexagonal nut in section which is engaged by a wrench, or other device for operating the shaft for swinging the filled bobbins intothe position shown in Fig. 6 and prior to the removal, as shown in Fig. 7; i

Fig. 9is a detail view of the rail or rod which carries the clips which temporarily retain the empty spindles in place.

Referring to the drawings in detail: land 2 designate the 'end frames of the machine which are provided with the slidable racks 3 and twhich are movable up and-down as willbe described. These-racks are engaged by the pinions 5 and 6 that are mounted on rection of rotation of the wheel 10.

the ends of a transversely located shaft 7 the center portion of which is provided with a spiral thread 8, which thread is engaged by a spiral gear 9, whereby when the hand wheel 10 is operated the shaft 7 will be ro-' tated causing the pinions to raise or lower the racks 3 and 4, depending upon the diracks are the bars 14 having the openings 15 the manually operable levers 16 and movtherein. Normally, or while the thread is being wound on the bobbins, these bars are held in an elevated position as shown in Figs. 2, 3, and 4. Attached to these bars are able by the levers is the rod 17 which carries the fingers 18 which engage the filled bobbin. The bars 14 are attached to movable links 19 by means of the brackets .20. The upper ends of the links 19 are pivotally connected to a shaft or rod 21 that extends longitudinally of the machine as shown clearly 111 Fig. 1, 1n S1ClOGlGVZItIOI1, and 111 Figs. 2, 3, 4, in end vlew.

I shafts travel up and down in the longitudi- 'nal openings 22 of the end frames, when step is to disengage the filled bobbins 23 removing the filledbobbins or lowering'th'e bobbin removing frame. iVhen it is desired to remove thefilled bobbins, which are inclicated in Figs. 4 and 5 at 23, the operator rocated in Fig. 5.

the lever 16 toward the right causing the tates the hand wheel 10 causing the racks 3 and 4 to descend, which carry the bars 14 therewith. The openings 15 in the bars l4 pass down over the filled bobbins, as indi- The operator then moves fingers 18. to engage the filled bobbin, as shown in Fig. 6. The operator now moves the lever. 16 to bring the fingers 18 into contact with the threads of the filled bobbins Upon the rotation of to grip the same. the hand wheel 10 in the opposite direction the bar 14 will be elevated carrying with it all of the filled bobbins 23' as indicated in Fig. 6. After the bobbins have been elevated above the spindles 24, the operator now moves the bar 14 outward by applying a wrench or other implement to the nut 24 on the end of the shaft 21, from the position shown in Fig. 6 to that shown in Fig. 7

in which position the bar is held or supported. by means of the link 25 which is connected to the link 19, this link 25 is placed by the operator in a socket in the plate 26, as shown. The next 'step in the operation is replacing the empty bobbins or spools on the spindles 24 and this is accomplished as followszThe operator places the empty bobbins, as shownin Figs. 3, 4, and 5, in the These then downward over the rollers 33'fan'd 34.

and the. winding drums 55 and 36' which are located, as shown in Fig. 1, at the op-- posite ends of the machine. These

drums

35 and 36 are-operated. by the hand wheel 37- by means of the longitudinally: arranged connecting shaft 38. As the'hand wheel 37 is rotated the empty 'spcolsor bobbins arelowered in position to slip on to the winding spindles 24 (see Fig. 7), ,It will be noticed that the dru1ns'31 are connected to shafts 31 whichextend through the endframes 1 and- 2 and to the inner ends of which drums 31. are attached. j A V In order to free thebobbins 27 from the spring clips 28 after the empty bobbins have been placed on the spindles 24 the operatorpulls outward on the rod 29 in the direction of the arrow 31, as shown in the dotted line position 29, Fig. 7, thereby freeing all of the empty bobbins from this rod. Thenext from the bobbin removing bar 14. This is accomplished by the operator pulling toward the left on the lever 16, v(Fig. 7 whereby the fingers 18 are simultaneously disengaged from the filled bobbinallowing them to fall into the receptacle 39,shown inFig. 7.

Itshould be stated that after the. rod 29 is freedfrom the empty bobbins the hand wheel 37 is again operated and the rodis drawn upward to its initial position in'the' upper part of the machine. The racks and 4are -also n iove d upward into the position shown in Fi 3 whlchplaces them ready for the next operation ofremoving' the filled'bobbin as already described.

The usual drawing rollers are indicated in Figs. 4 and 5, at 40, from which extends the threads tothe bobbins being wound.

The steps or positions maybe summed up as follows: first, that shown in Fig. 4 where the bobbins are. filled. The bobbins are filled readv to be removed, the bobbin re-' moving rall beingin elevated position asf',

shown in this figure. In the second position the rail 14511518 been'lowered as shown'in operator now; operates thehand wheels 10 causing all ofthe filled bobbins to be drawn 1 upward above the spindle 24, nextthe op.

erator rotates the shaft 21 by means of a wrench or other implement which is placed on the nut end 24:, and swings'the bar 14 and the filled bobbins to the dotted line position where it is temporarily elevated until the empty bobbins are .placed on the spindlesQt. In the fourth position the operator rotates the hand wheel 37 for lowering the bobbins 27 into the position shown in Fig. 7, then he pulls outward on the rod 29 freeing the bobbins from the spring clips 28. The rod 29 is then drawn upward again into its initial position for the operator to fill the spring clips 28 with empty bobbins. Next the operator moves the lever 16 outward thus releasing the gripping fingers 18 from the filled bobbins whereby they will fall into a receptacle 89 which is placed along the side of the machine. The braces 25 are then released and the frame drawn upward again into the position shown in Fig. 4 where it is ready for the next operation of doflin the filled bobbins.

What I claim is:

1. In a doffing device for spinning frames the combination with a vertically movable bar formed with openings therein to receive the filled bobbins, means for moving the bar to cause the openings therein to pass over the filled bobbins, means for gripping the bobbins when the bar is in this position, means for elevating the bar and bobbin as a unit, devices for swinging the bar and bobbins outward to a position beyond the plane of the end of the frame of the machine prior to disengaging the bobbins, a bar provided with spring clips for temporarily receiving the empty bobbins, means for lowering this bar positioning the empty bobbins on the spindles, the empty bobbins being released from the bar by an outward pull thereon, and means for disengaging the filled bobbins from the first mentioned bobbin receiving bar, as described.

2. In a dofiing device for spinning frames for removing the filled bobbins and for replacing the empty bobbins, said device com prising a bar formed with openings therethrough for receiving the filled bobbins,

means for gripping the filled bobbins, devices for elevating the bar and bobbin into a position above the winding spindles, means for moving the filled bar and bobbins in a lateral direction away from the vertical axis of the winding spindles to permit an empty bobbin holder to be lowered in position on the spindles, means for supporting the empty bobbins, and means for raising and lowering said empty bobbin-supporting means.

8. In a dofling device the combination with the end frames of the spinning machine, recesses in the ends of the frame,

secured to the racks for raising and lowering the bar into a position over the filled bobbins, means on the bar for gripping the filled bobbins to effect their removal from the spindles when the bars are elevated, and means for releasing the filled bobbins when the gripping means is moved in an opposite direction, as described.

at. In a spinning frame, the combination with the spindles thereof, of means for placing the empty bobbins on the spindles, including a bar provided with spring clips for releasably holding the empty bobbins in place thereon, a shaft extending longitudinally of the machine and having cable winding drums on its ends, cables extending from the drums and connected to the empty bobbin-supporting bar, whereby when the shaft is operated the empty bobbins will be lowered into position for placing empty bobbins on the winding spindles, said bobbins being simultaneously removed from the clips by a pull in a direction transverse to the axis of the winding spindles.

5. In a dofiing device the combination with a spinning frame, the end plates of which are formed with longitudinal openings, racks in the openings, a shaft secured to the racks and traveling therewith and having its ends formed with a projection to receive a suitable implement for rotating the shaft, a link secured to the shaft, a bobbin receiving bar secured to the link and formed with openings therein and designed to slip over the filled bobbins, means engaging the rack for elevating the bobbins and removing them from the spindles, the rotation of said shaft serving to move the bobbins to a position beyond the plane of the end frames, and means for releasing the filled bobbins, comprising gripping fingers for engaging the filled bobbins.

6. In combination with the winding spindles of a spinning frame, of means for replacing the empty bobbins on said spindles, comprisinga bar, spring clips secured thereto for temporarily receiving the empty bobbins, cables secured to said bar, drums located on the inside of the end frames, and to which the cables are secured, shafts secured to said drums and arranged near the top of the end frames, drums on the outer ends of the shaft, cables secured to the drums and secured to a winding drum, whereby the empty bobbins can be lowered by the operation of the winding drums and into a position to permit the empty bobbins to be placed on the spindles, said clips permitting the bobbins to be removed therefrom when moved in a direction transversely to the machine.

7. In a device for holding the empty bobbins in a spinning machine prior to placing them on the winding spindles and comprising a member to which clips are secured the clips having a' throat portion that is narrower than the seat-receiving portion to permit their insertion, and to permit their removal when the member is moved in a direction that is transverse to the machine, means for raising and lowering the bar, comprising winding drums and cables which Ccpies of this patent may be obtained for five cents each, by addressing the Com Washington, D. C. v

are attached to the bar, said cables permitting the bar to be swung outward after the empty bobbins have been placed on the winding spindles, whereby the empty bobbins are disengaged fromthe bar and positioned on the winding spindles. V I

JOHN P. CRANE.

nission er of Patents,