US2141816A - Automatic reeling machine - Google Patents

Description

Dec. 27, 1938. 1. KOWADA AUTOMATIC REELING MACHINE zsnets-sneet 1 Filed Jan. 12, 1952 60 Kowada v6/vT0/ 927M Dec. 27, 1938. KOWADA AUTOMATIC REELING MACHINE Filed Jan. 12, 1952 2 Sheets-Sheet 2 m 1/ r W W Patented Dec. 27, 1938 UNITED STATES PATENT orrlcr.

versal Winding Company,

Boston, Mass., a corporation of Massachusetts Application January 12, 1932, Serial No. 586,215

2 Claims.

This invention relates to an improvement in a reeling machine wherein natural silk thread is automatically reeled off from. cocoons. Its most important characteristic points lie in the fact 5 that on one side of the cocoon releasing pan, a conduit suitable to admit and pass one row of cocoons is provided and all threads issuing from the cocoons are sustained by a sustaining rod and on the end of the conduit nearest to the cocoon releasing pan, a curved check plate is provided, leaving appropriate clearances on the under side, one side and back side, and on one side of the cocoon releasing pan, a movable lever for the additionof a new filament is provided, the end of which is placed close to the check plate andwhich is used as a hook for picking up the cocoon and fishing the added new filament and by keeping this movable lever for the addition of threads to rock in the direction of the axis of the conduit, the fishing hook picks up one row of cocoons along the surface of the check plate and then lets it drop down to the cocoon releasing pan and at the same time takes the new filament to the rotating zone of the rotary catcher of threads and lets them come down along the back side of the check plate and then to the front side of check plate and in short provides the device for the automatic supply of cocoons through certain passages as explained above.

A further characteristic point of this invention is as follows:

In front of a conduit suitable to pass one row of cocoons, a funnel shaped cocoon basin is provided and near the entrance where the co coons proceed from the basin toward the conduit, guide plates for regulating the passage and transportation of the cocoons are provided along the both sides of the basin and made movable and reversible alternately in opposite directions. and parallel to the axis of the conduit and when the cocoons thus proceed from the basinto the conduit, they push each other and thus they regularly and automatically proceed in the conduit in good order.

A further characteristic point of this invention is as follows: a certain stretch is given to the thread passing from the rotary catcher of thread ends to the reeling frame and the thread is made to pass over a roller, constantly tending to come down and only prevented from doing so by the tension of the thread proportional to the degree of fineness of the thread.

When the threads become thin on account of dropped cocoons etc., the tension of the thread decreases which causes the roller to move, and, when the motion of the roller attains a certain point a movable point of .the roller sustaining lever is electrically connected with the station'- ary point and the starting of the supply of cocoons with the beaten ends commences.

Another characteristic point of this invention is as follows:

To a constantly rotating large friction wheel, a small friction wheel is made to come in contact and to rotate by the transmission of the motion and is fixed to one end of the axis of the reeling frame closely neighbouring to the small friction wheel and on the same axis, a ratchet wheel is provided and also a click enabling it to engage with or stop the ratchet wheel is provided at the end of bell crank rocking lever, connected to the connecting rod for starting or stopping the rotation of the reeling frame.

The ratchet wheel end of the reeling frame axis is sustained by a movable lever at its middle portion so as to be free to move and. on one side of the movable lever, a check lever with sloping side and a step is fixed and pin connected to a bracket am so as to be movable on the axis.

A spring provided and fixed to the bracket constantly tends to push the check lever toward the side of the reeling frame and by the movement of the connecting rod for stopping or starting the reeling'frame a click engages with the ratchet wheel.

When the reeling frame suddenly stops, the frame axis and the movable lever will oscillate by the shock and will be sustained in its upward position by the stop in the check lever and thus the reeling frame will be retained in position.

This invention thus provides for the device for automatically stopping the motion of the reeling frame.

The accompanying drawings give an example of the reeling machine showing the application of this invention.

Fig. 1 is the longitudinal sectional elevation of a portion of this machine.

Fig. 2 is a partial plan of the cocoon releasing pan and the apparatus for supplyin cocoons with fibre ends to the pan taken on the line A-A in Fi 1.

Fig. 3 is the partial longitudinal elevation showing the relation between the cocoon check plate provided at the end part of the conduit for supplying cocoons with fibre ends and the end of the lever for the addition of a new filament.

Fig. 4 is the partial sectional elevation showing the working condition of the reeling frame.

Fig. 5 is the longitudinal elevation of the reeling frame during rest.

Fig. 6 is part sectional elevation of the reeling frame showing the same condition as in Fig. 5.

The construction and working of the different parts of the automatic reeling machine of this invention will be fully explained referring to the drawings as described above.

First referring to Fig. 1, Fig. 2 and Fig. 3, I shall explain about the cocoon releasing pan and the device for supplying cocoons with fibre ends to the pan and alsothe part of the devices connected to the pan.

i is a trough shaped releasing on top oi which a rotary thread catcher 2 and a knot remover I are provided as shown. On the front side of the releasing pan I and in front of cocoon releasing part it directly below the thread catcher 2, a slim conduit 4 is provided and filled with hot water so that one row of cocoons are arranged and made to float in the water.

All beaten threads c issuing from the cocoons b are collectively conducted and wound over the sustaining rod 4 provided on one side of the conduit 4.

Near the end of the conduit 4 facing the pan I, curved cocoon check plate 8 is fixed to one side of the conduit 4 and placed at a certain inclination to the pan, the check plate being preferably fork shaped with slits as shown. The check plate has suitable clearances on the other side of the conduit and on the under and back sides of the plate.

On one side of the releasing pan, a movable lever I for the addition of new filament-is provided and free to move round an axis.

The end of the rocking lever I is placed close to the check plate 6, being bent at right angles near its outer end, and is fork shaped and serves as a hook 8 for picking up a cocoon and for fishing for the thread thereof so as to pick up one cocoon at a time. The base of the rocking lever 1 is pivoted to the upper end of the rocking lever 9 and the lever I rocks round the supporting point of the axis.

In the forward motion of the rocking lever I, the fork shaped hook I at the end of the rocking lever 1 picks up or fishes one beaten thread and in that state moves upward on the axis of the upper end of the rocking lever l and comes close to the side of thread catcher 2 and thus conducts the fished thread to the rotating zone of the rotary catcher 2 as shown in dotted lines on Fig. 1 and then the backward motion will commence.

In the return motion of the rocking lever I, the fork shaped hooked end 8 of the rocking lever 1 takes a different path, i. e., along the back and side of the check plate 6 as shown in dotted lines on Fig. 1.

At the close of the return motion, the hook proceeds through theunder side of'the check plate 6 and comes back to the first starting position taking the above explained special closed path.

To go into the mechanism for affording the movements, as explained above, toothed wheel ll vided in the rod IS, the roller II is kept in constant touch with the cam.

The middle portion of the reversible bar It is pivoted to the rocking lever 9 and by the reverse motions of the red I krocjingmotion of the rocking lever O is performed and the upper end of the lever which is the connecting point of the thread adding lever 1 shifts from point d to di as shown on Fig. 1.

The point (I is the beginning point of the upward motion of the thread adding lever I and d1 is the finishing point of the downward motion of the lever I.

On the other end of the parallel shaft II, a rotating disc Iii is fixed and on its side, eccentrical- -ly situated, a crank pin 20 is fixed. To this crank pin, a rocking connecting rod 2| is connected the upper end of which is made to loosely fit in a groove 22 provided in the middle part of the thread lever I and by the rotation of the disc I I and through the intermediate action of the crank pin II and the connecting rod 2|, upward or downward motion oi the thread lever I is performed.

The sustaining rod 5 for winding beaten threads, takes all threads 0 from cocoons and winding them round, rotates in the direction shown by the arrows and continues to push the ends of the extending threads I) of the cocoons toward the front of the conduit 4.

I The construction for rotating the sustaining rod I is as follows:

On the lower end of the sustaining rod 5, a grooved pulley 23 and on the power shaft I! another grooved pulley 24 is fixed, these pulleys being connected by belt 25 the rotation of the power shaft l0 istransmitted to the sustaining rod 5.

Now to explain about the working of the apparatus, beaten cocoons are admitted into conduit 4 in one row, and the threads issuing from them are collectively wound on the sustaining rod I and accompanying the rotation of the sustaining rod 5, the cocoons are pulled toward the pan side end of the conduit 4 and the foremost cocoon is checked by and in touch with the cocoon check plate 6.

By the working of a certain starting device which will be explained later, the thread adding lever 1 commences to make an upward motion and the fork shaped hooks 4 at the end of the thread adding lever 1 will rise up along the front side of the check plate 6 and at the same time pick up one cocoon touching the front face of the cocoon check plate 8 and while finishing th'e cocoons, the beaten cocoons drop to the releasing pan I. At the same time, the thread issuing from the cocoon is picked up by the fork shaped hooks 8 and in that state taken to the rotating zone of the rotating thread catcher 2 and thus the grasping of thread is performed.

At the close of the upward motion of the thread adding lever I and at the moment of commencement of downward motion, the reversible bar I moves on account of the cam and thus the rocking point d of the thread adding lever 1 moves to di moving back in the direction of the axis of the conduit 4. The lever 9 takes a different path in its downward movement that is, it moves along the backside of the cocoon check plate 6. After the lever completes its downward course, it proceeds again to the front side of the check plate 6.

Now to explain about the construction for supplying and adding cocoons to the conduit 4, a funnel shaped cocoon basin 2 is provided, ad-

joining the front end of the conduit 4 and near the entrance to the conduit leading cocoons from the basin 26 to the conduit 4, two curved plates 21, 28 one on each side of the funnel and which may be alternately reversed, are provided. These plates regulate and assist the transportation of the cocoons to the conduit, so that one cocoon at a time is admitted and carried. If two or more cocoons crowd together near the entrance to get in, they check each other andonly one cocoon at a time is conducted.

The mechanism for effecting the reversing of the position of the two curved guide plates 21 and 28 for regulating the transportation of cocoons is as follows:

Referring to Fig. l and Fig. 2, each of the curved plates 21 and 28 is movably sustained by means of sustainers 29 which also serve as guides fixed to the side walls of the cocoon basin 26.

To each of the guide plates 21 and 28, movable rods 30 and 3| are connected respectively. The other ends of the rods 38 and 3| are pivoted to the ends of the connecting rod 32.

The middle portion of the connecting rod 32 is connected to an axle shaft 33 in such a way that the connecting rod may freely force about the shaft 33.

For the movable shaft 33, a movable arm lever 34 is connected and the arm lever 34 is connected to connecting rod 35. In this way, the lever 34 keeps connection with the upper end of the rocking lever 36.

This rocking lever 36has, in its middle part, a long groove 31 and loosely fitted in the groove and connected at one end of power shaft i8, is a crank disc 38.

Through the motion of this crank disc 38, the lever 36 rocks through the intermediation' of the connecting rod 35, arm rod 34 and the other connecting rod 32, the movable rods 30 and 3| being alternately moved and reversed.

To explain next about the other portion of the device of this invention, 1. e., the device for con--. ducting threads:

The threads going up from the rotary thread catcher 2 pass to a small pulley 40 through the usual kennel twisting arrangement, then pass over a smaller pulley 4| and return again to the pulley 40. After being wound about the pulley 48 once, the threads are conducted downwardly and pass over a guide roller 43 on the rocking lever 42, then they are extended upwardly again and wound on the larger pulley 44 on the same axis as the pulley 48 from which they proceed to the reeling frame 45. V

The smaller pulley 4|) and larger pulley 44 'are mounted on the same axis and rotate together and the thread passing round these pulleys is given a constant stretch and tension due to the difference of the speeds of the passing thread on these two pulleys.

The lever 42 with the thread conducting roller 43 on it, being supported by and on a point 46, the arm containing the roller 43 has a natural tendency to move down and is balanced by the tension of the thread going round the roller 43 and is kept in position accordingly.

In this case, the tension of the thread passing over the roller 43 is of course proportional to the degree of fineness of the 'thread. When thread is strong, lever 42 will have a tendency to move up and when it is thin, lever 42 will have tendency to move down.

The lever 42 has on its one end, a movable elec-.

trical contacting point 41 and in order to connect or disconnect this point, a stationary point 49 (consisting of a mercury pot) is provided on a supporting disc 48.

By means of these points 41 and 48 the 'electrical circuit 50 is either established or closed.

On the electrical circuit 50, an electric magnet is inserted. When magnet 5| .is magnetized, this will attract the movable iron piece 52 which is connected to one end of hook rod 53 which serves as the click for the partially toothed wheel |2 on Fig. 1.

Ordinarily the hook end 53a of the hook rod 53 engages with the click 54 of the partially toothed wheel and thus keeps the latter in an immovable position.

As shown on Fig. 1, the untoothed portion |2a of the wheel I2 is placed in touch with the toothed wheel II on the power shaft I8 and therefore the rotation of the wheel M will not be transmitted to the wheel I2.

Suppose in that state the points 41 and 49 are placed in contact and the electrical connection is established, then the magnet 5| will be magnetized and the hook lever 53 will be attracted and the wheels i2 and II will be engaged and the partially toothed wheel l2 will rotate due to the position of the cam H which also acts as a weight to thus start the mechanism for the supply and addition and working of beaten cocoons by means of the lever l, which process was explained already.

Lastly we proceed to the other portion of this invention, that is, the construction of thread winding portion.

Referring now to Fig. 1, Fig. 4, Fig. 5 and Fig. 6, on the constantly rotating wheel 55, a small friction wheel 56 is placed in contact so that the small wheel is made to rotate by frictional transmission from the large wheel 55.

This wheel 56 is fixed to one end of the axis 51 on which the reeling frame is also mounted.

Closely neighboring the small friction wheel 56, side by side and on the same axis, a ratchet wheel 58 is fixed and also a click 53 on one end of a rocking lever 60 of hell crank shape, and the click 58 allows or stops the rotation of the ratchet wheel 58.

This rocking lever 68 is connected through a connecting rod 6| to the rear end of the sustaining lever 62 which sustains the knot remover 3 on the other end.

When the thread passing through the knot remover 3 have comparatively larger knots and thereby pull up the knot remover 3 the rocking of the lever 62 will cause the connecting rod 6| to move down and also move the rocking rod 68 down and the click 59.

The click 59 will thus engage with the ratchet wheel 58 and stop the rotary motion of the reeling frame 45.

On one side of the rocking lever 68, a counterweight 63 is placed so as to balance said lever.

When the knot remover 3 operates without any interference, the lever 62 and connecting rod 6| will be pulled up and the click 59 will not engage with the ratchet wheel 58 and thus the ordinary state retained.

Again the ratchet wheel 58 of the reeling frame shaft 5'| is supported by the rocking lever 65 at an intermediate point. The lever 65 may rock round the sustaining point 64, but still allows the winding wheel to rotate round.

Adjoining the side of therocking lever 65, a checkrod 61 .having sloping side and a step 66 is fixed and pin connected to bracket arm 68 so as to be movable round the common axis. The spring 59 will always tend to push the check rod 61 toward the side of the reeling frame 45 and concerning the movement of the connecting rod SI for stopping or starting reeling frame, the click 58 engages with the ratchet wheel 58 and when the rotation of the reeling frame suddenly stops, the lever 85 with the reeling frame axis will move up by the shock and then the step 66 of the check rod U will retain the lever 'in position-and thus the reeling frame 45 will keep its upward stop position.

On the under side of the rocking rod 65, an electrical contact piece 10 is suspended and a stationary contact piece II is provided in the electrical circuit 50 so as to be placed in or out of contact. When the rocking lever \65 moves up and reeling frame stops its rotation, the point 10 will be placed out of contact. As long as the lever 65 goes up and the reeling frame stops its rotation these points will be separated out and the device for supplying cocoons will stop its working also as will be seen from Fig. 5.

Having now particularly described the nature of my invention, I declare that what I claim is:

1. Apparatus for the control of cocoon supply mechanism including in combination with cocoon supply mechanism a small pulley over which thread passes after leaving the supply mechanism, another pulley situated beneath the first pulley and about which the thread is passed, a control circuit for the cocoon supply mechanism, a switch arm in the form oi a pivotally mounted lever interposed in the circuit and arranged beneath the pulleys, a guide roller on the switch arm and over which the thread is trained, a fixed contact interposed in the circuit and located beneath the rocking lever, a further and larger pulley mounted on the same axis asthe first pulley and about which the thread is trained after leaving the guide roller, the thread being passed about the small and large pulleys to rotate said pulleys and the thread being given a constant stretch and tension due to the constant speeds of the passing thread on the first and last mentioned pulleys, the arrangement being such that the thread is given a certain constant stretch and tension due to the dlflerent speeds of the passing thread on to said pulleys and the rocking lever is made to move in accordance with the tension of the thread in proportion to the degree of fineness oi the thread and when the denler" of the thread decreases the switch lever moves to close the circuit thereby starting the cocoon supply mechanism.

2. An arrangement as claimed in claim 1 wherein one end of the pivotally mounted lever terminates in a contact point for associating with the fixed contact disposed therebeneath, a magnet interposed in the circuit, and a control member for the cocoon supplying mechanism associated with the magnet which when the contacts are engaged to energize the magnet the latter acts to start the mechanism for supplying fresh cocoons.

ISOJI KOWADA.

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