US1560523A - Bobbin-winding machine - Google Patents

Description

Nav. 1o, 1925. 1,560,523

` F. ASHWORTH BOBBIN WINDING MACHINE Filed April 19, 1919' Mlfzess l nelfm @Mmm WW y@ im M Patented Nov. 10, 1925.

UNITED STATES PATENT oEFlcE.

FRED ASHWORTH, OF BEVERLY, MASSACI-ITISETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, 0F FATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

BOBBIN-WINDING MACHINE.

Application led April 19, 1919. i Serial No. 291,268.

To all whom t may concern.'

Be it known that I, FRED AsHwoRTH, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in BobbinWVinde ing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make use the same.

This invention relates to `bobbin lwinding machines and, more particularly, to machines for winding the bobbins of sewing machine shuttles.

The object of the invention is to improve the construction and mode of operation of machines for winding the bobbins of sewing machines shuttles, and to produce a machine of simple and compact construction by which such bobbins may be quickly and efficiently wound.

IVith this object in view the features of 4the invention consist in certain novel and improved constructions, arrangements and combinations of parts hereinafter ldescribed and particularly pointed out in the claims, the advantages of which will be readily understood and appreciated by those skilled in the art.

The invention is illustrated in the accompanying drawings in its preferred form, and will be readily understood from the drawings taken in connection with the following detailed description of the constructions therein shown.

In the drawings Figure 1r is a view partly in plan and partly in horizontal section of a machine embodying the invention; and Fig. 2 is a view in side elevation of the machine.

'Ihe machine illustrated in the drawing is provided with a bobbin supporting spindle 2 secured in a cylindrical boss 4 mounted on a rotary disk 6. The disk 6 .is secured to one end of a shaft 8 mounted to rotate in a bearing in a bushing 10 secured in the frame of the machine indicated at V12. The disk 6 constitutes the driven member of a friction clutch, the driving member of which consists of a pulley 14 mounted to rotate on one end of the bushing 10 which projects beyond the frame, as clearly shown in Fig. 1, said pulley being adapted to receive a suitable driving belt as indicated at 16. The driving pulley, as illustrated, is provided with a ring 18 of rubber or other suitable friction material embedded therein and arranged. to engage the adjacent face of the disk 6.` To enable the driven disk 6 and the driving pulley 14 tobe moved relatively into and out of driving engagement, theshaft 8 which carries the disk is mounted for longitudinal movement as well as rotary movement in the bushing 10. y

During the winding operation the driven disk 6 is held yieldingly in engagement with the driving pulley, and when a predetermined amount of thread has been wound on the bobbin, the disk is moved axially to the left (Fig. 1) to disengage the disk from the driving pulley. The devices for holding the disk in contact with the driving pulley also act to hold the bobbin in position on the spindle 2. In the construction illustrated, a rotary button 2O is mounted on a stud 22 journaled in an arm 24 and is adapted to engage the outer end of a bobbin 26 placed Yon the winding spindle 2. The arm 24 is pivoted on a stud 28 mounted in a block 30 and said arm is acted upon by a spring 32 which tends to swing the outer end of the arm 24 to the right. Through the action of the spring 32 the button 2O is forced against the outer end of the bobbin to hold the bobbin on the spindle 2, and the driven disk 6 is forced against the driving pulley 14.

vThe construction of the spring 32 is clearly 30 is pivote'd to turn freely on a rock shaft 36 mounted in a bearing in an arm 38 on a frame.

`In placing a bobbiny on the 4spindle 2 and starting the machine. the arm 24 is swung about the shaft 36 out of operating position,

trally, the button being located so that it will project slightly into the central bore in the bobbin and thus be held from displacement. Vith the arm 24 thus positioned, the driven disk 6 will be yieldingly held by the spring 32 in driving contact withthe driving pulley 14, and will be frictionally drive-n therefrom.

The devices for disengaging the driven disk 6 from the driving pulley 14 are normally held in inoperative positions and are controlled from the thread as it is wound on the bobbin so as to be thrown into operation when the bobbin contains a predetermined amount of thread. These devices when thrown into operation will act to move the driven disk 6 and the. parts connected therewith to the left against the tension of the spring 32 to disengage the disk from the driving pulley.

The devices for disengaging the driven disk from the ldriving pulley comprise a cam fia-nge 40 projecting outwardly from the boss 4, and a roll 42 mounted on one arm of a lever 44 and arranged to engage the cam flange. The lever 44 is secured to the rock shaft 36 so that the roll 42 may be moved into and out of the path of the cam flange 40 by turning the rock shaft. Upon another arm of the lever 44 is formed a contact plate 46 arranged to engage between the flanges of the bobbin and to Contact with the thread as it is wound on the bobbin. The position of t-he lever 44 is controlled by means of' a spring 48 connected at one end with an arm 50- secured to the rock shaft 36 and at the other end with a pin 51 secured in the frame of the machine. The spring 48 is larranged so that it will act on the lever 44 to maintain the contact plate 46 in engagement with the thread and the roll 42 out of position to engage the cam flange 40 during the greater part of the winding operation, or when the bobbin contains less than a predetermined amount of thread, and that when a predetermined amount o-f thread has been wound on the bobbin it will swing the lever tol carry the roll 42 into position to engage the cam flange. To this end the pin 51, the arm 50 and the lever 44 are relatively arranged so that when the contact plate 46 is swung down into position to engage the thread at the beginning of the winding operation, the central line of the spring is `located abo-ve the axis of the rock shaft 36, and that the central line of the spring is carried below the axis of the rock shaft by the movement of the lever 44 produced by the engagement of the thread with the plate 46 as the thread is wound lon the bobbing.

With this construction the spring 48 when the plate 46 is swung into acting position at the beginning of the winding operation will tend to turn the rock shaft 36 and to swing the lever 44 in a. direction to maintain the contact plate 46 in yielding engagement with the thread. As the amount of thread upon the bobbin increases, the outward movement of the plate 46 produced by the engagement of the thread therewith will gradually swing the lever44 against the tension exerted by the spring until the central line of the` spring is carried below the axis of the rock shaft 36, Vhen this occurs the spring will `act to swing the lever 44 in a direction to carry the roll 42 upwardly into position to engage the cam flange 40, and through the engagement of the cam incline on the cam flange with the roll the driven disk 6 will be moved to the left out of engagement with the driving pulley 14. Afterv being disengaged from the driving pulley 14 the driven disk 6 is held in its outer position by the engagement of the roll 42 with the lateral face of the cam liange 40.

Having explained the nature and object of the invention, and having speoiiically described a machine embodying the invention in its preferred form, what is claimed is:

1. A bobbin winding machine having, in combination, a rotary driving member, a 1'0- taryv driven member movable axially into and out of driving contact with the driving member, a bobbin supporting spindle connected with the driven member, a cam secured to the driven member to rotate therewith, an abutmentarranged to engage the cam and cause the cam by its rotation to move the driven member axially out of contact with the driving member and movable into and out of the path of the cam, and means controlled from the thread wound on the bobbin for controlling the position of the abutment.

2. A bobbin winding machine having, in combination, a rotary driving member, a rotary driven member mounted to rotate coaxially with the driving member and movable axially into and out of driving contact with the driving member, a bobbin supporting spindle'oonnected with the driven member, means for yieldingly holding the driven member in driving Contact with the driving member, a cam secured tothe driven member to rotate therewith, an abutment arranged to engage the cam and cause the cam by its rotation to move the driven member axially out of Contact with the driving member and movable into and out of the path of the cam, and means controlled from the thread wound on the bobbin for controlling the p0- sition of the abutment.

3. A bobbin winding machine having, in combination, a rotary driving member, a longitudinally movable shaft extending centrally through the driving member, a rotary driven member mounted on the shaft, a bobbin supporting spindle secured to the driven member, means for holding the driven member yieldingly in driving contact with the driving member, a cam secured to the driven member to rotate therewith, an abutment arranged to engage the cam and'cause the cam by its rotation to move the driven member axially out of contact with the driving member movable into and outof the path ci' the cam, and means controlled from the thread wound on the bobbin for controlling the position of the abutment. g

1 4. A bobbin winding Amachine having, in combination, a rotary driving member, a rotary driven member movable axially into and out of driving contact with the driving member, means Jfor holding the driven member yieldingly in driving contact with the driving member, a cam secured to the driven member to rotate therewith, a lever, an abutment carried by the lever arranged to engage the cam and cause the cam by its rotation to move the driven member out of con tact with the driving` member' and to be carried into and out or' the path of the cam by the swinging movement of the lever, and a contact plate carried by the lever for engaging the thread wound onV the bobbin.

5. A bobbin winding machine having, in combination, a frame, a bushing secured in the frame,a driving pulley journaled on the bushing, a shaft journaled in the bushing and ar `anged for longitudinal movement therein, a driven member mounted on the shaft, a cam secured to the driven member to rotate therewith, an abutment arranged to engage the cam and cause the cam by its rotation to move the driven member axially out of contact with the driving pulley and movable into and out the path of the cam, and means controlled from the thread wound on the bobbin for controlling the position of the abutment.

6. A bobbin winding machine having, in combination, rotary driving and driven members, a bobbin supporting spindle con nected with the driven member, a movable arm, a spring connected to said arm and acting in one direction on said arm when the arm is on one side of a given position, and acting in the opposite direction on said arm when the arm is moved to the opposite side of said position, a device arranged to engage the thread wound on the bobbin and connections between said device and said arm for moving said arm gradually from one side of said position to the other side thereof and devices controlled by said arm for disconnecting the driving and driven members.

7. A bobbin winding machine having, in combination, rotary driving and driven members, a bobbin supporting spindle connected with the driven member, a lever, a tension spring connected with said lever and located on one side of the axis thereof so as to tend to swing the same in one direction when the lever is on one side of a given po sition, and arrangedtoxbe carried tothe driving anddriven members.

8. A bobbin winding machine having, in combination, a bobbin supporting spindle, means for driving the spindle, a lever for holding the bobbin on the spindle pivoted to swing in a plane containing the axis of the spindle, and also to swing independently of the spindle in al plane substantially perpendicular to the axis of the spindle into and out of acting position, a spring acting on said lever and tending to swing the same in the first of said planes, and a rotary button carried by said lever for engagement with the outer end of the bobbin.

9. A bobbin winding machine having, in combination, a rotary driving member, a rotary driven member mounted to rotate coaxially with the driving member and moving axially into and out of contact with the driving member, a bobbin supporting spindle secured to the driven member, a cam secured to the driven member to rotate therewith, a lever pivoted on an axis substantially parallel with the common a- Xis of the driving and driven members, an abutment carriedby one arm of said lever arranged to engage the cam and cause the cam by its rotation to move the driven member axially out ot' driving contact with the driving member and to becarried into and out of the path of the cam by the swinging movement of the lever, and a contact plate carried by another arm of the lever for engagement with the thread wound on the bobbin.

10. A bobbin winding machine having, in combination, a bobbin supporting spindle, a clutch for driving the spindle, a spring and mechanism acted upon by the spring to maintain the clutch yieldingly engaged and to hold a bobbin in position on the spindle.

11. Abobbin winding machine having, in combination, a` driving clutch member, an axially movable driven clutch member, abobbin supporting spindle secured to the driven clutch member, a device for 'engaging a bobbin placed on the spindle and a spring acting on said device and tending to force the same in the direction of the axis of the spindle, to hold the bobbin on the spindle and to hold the driven clutch member yieldingly in engagement with t-he driving clutch member.

l2. A bobbin winding machine having, in combination, a bobbin supporting spindle,

means for drivingthe spindle, and a lever for holding the bobbin on the spindle piv- -oted to swing in a plane containing the axis of the spindle, and also to swing independently of the spindle in a plane substantially perpendicular to the axis of the spindle into and out of acting position.

r13. 'A bobbin Winding machine having, in combination, a bobbin supporting spindle, a driven member, a driving member, a rotating cam', mechanism actuated by the cam during its rotation to disconnect the driving anddriven member, and `means contrOlled fromv the thread Wound on the bobbin for lrendering the cam operative.

14. A bobbin Winding machine having, in combination, a bobbin supporting spindle, a driving member, a driven member, a rotating cam, mechanism including an abutment arranged to engage the cam and cause the cam during its rotation to disconnect the driving and driven members, and means con t'rolled from the thread Wound on the bobbin for controlling the position of thek abutment.

FRED ASH'WORTH.

Images