US1289453A - Spring-winding machine. - Google Patents

Description

I'. w. HYATT.

SPRING WINDING MACHINE. APPLICATION FILED IAN. 4.1918.

Patend DQCQSLIQIS.

4 SHEETS-#SHEET l.

IIIIIIIII Patented Dec. 31, 1918.'

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SI.. W. HYATT; ,v SPRING WLNDING MACHINE; APPLlcATIQN mep JAN.4. 191s E ff; a J' j l llllm' m' l ,lz I l l l. c* 7IJ1Iy Patented Dec. 31, 1918.

J. W. HYATT.

SPRING wmmNG MACHINE. AFPLICAIION FILED lN.4.19l8.

Patented Dec. 31, 1918.

SHEETS-SHEET 4.

distance in a reverse direction when the JOHN W. HYATT, 0F NEWARK, NEW JERSEY.

SPRIN G-WIN DIN G MACHINE.

Specification of Letters Patent..

Patented Dec. 31, 1918.

Application led January 4, 1918. Serial N o. 210,247.

To all whom t may concern.'

Be it known that I, JOHN lV. citizen of the United States, of 141 Coinmerce street, Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in SpringlVinding Machines, fully described and represented in the following specication and the accompanying drawings, forming a part of the same.

The present invention relates to a maa series of spiral wire the book.

To torni such a series of spiral wire springs and connectors, the machine is provided with a mandrel which is alternately by `.automatic means,

rotated and stopped guide having a throat and is rotated within a to ing is commenced, forms connector with the succeeding may be desired for use in a given book-bind-f ing, each spring when wound being advanced upon the mandrel and the series of springs severed trom the wire when a suitable nunithe epring, and means for retracting the rolls during the advance movement of the spring. he wire-giude is reciprocated by adjustable mechanism which inay vary its stroke HYATT, a

Awhere the The wire-guide is reciprocated continuly rotated cani, and such cam is connected by a clutch, witi driving-gear, to intermittently rotate and the mandrel during the windautomatito disengage the said drivinggearing of the rolls from the cam after the winding of each spring,and to rengage the said driving-gear with the cam when the wire-connector has been guide and rolls renew the *winding movement.

The invention will be understood by reference to the annexed drawing, in which Figure l is a side elevation of the apparatus for want of space; Fig. la is a cross section on line. '5c-lm in Fig. l; Fig. lb is a cross section on the line z`e in Fi le; F' is a vertical section of the guide through the center of the mandrel; Fig. 2 is a front elevation of the upper part of the machine; Fig. 3 is a plan of the operative ends of they roll-pressing levers with a section of the spring-giiide afbovethe level of the wire-inlet; Fig. at is a plan of the gearing for driving themandrel; Fig. 5 is-a plan of i plan of the top-plate with the saine gearing as Fig. 4: and the clutch-disengaging device; Fig. 7 is an elevation of the upper part ot' the machine partly in sect-ion where hatched at nected spiral-springs; and Fig. ll is a side view of a connected group of four springs for such a binding. Figs. 3 and 4 are drawn upon a larger scale lthan the other figures.

The spiral-springs employed in binding.,r are ver)v small, as spring is shown book. and in Fig. 10 slanting holes s atthe and the strain upon all the parts of the machine is light, and it is therefore shown mounted upon a post A to which the bottom frame-plate B of the machine issecured, and to this a top-plate C is connected by tierods D.

A cam-shaft is extended vertically a Separate from the vextended through hinge of the book S;

through the plates and carries a cam barrel F provided with three cams (l, H and I. driving-shaft J extends across the upper plate over the shaft E and is shown provided with a driving-pulley J. The driving-shaft i5 connected with the cam-barrel F by spurgears F and worm-gear F2. The drivingshat't is connected by bevel-gears K and K with a spindle L, which revolves in bearings a iin-fthe opposite ends of a hollow shaft b which is mounted in bearings c in the frameplates. j

A hub d is attached to the hollow shaft and the bevel-gear K turns loosely thereon and can be clutched thereto by any suitable clutch mechanism, as the particular construction of the clutch forms no part of the present invention.

As a means of operating the clutch, a clutch-arm e is shown in Figs. (3 and 7, which is pressed normally by a spring c in the direction ot' the arrow c2. and when thus pressed. couples the bevel-gear K to the hollow shaft, and this Shaft then rotates simultaneously with"l the cam-barrel F.

The cani 1 upon the upper end of the barrel F is provided to operate a lever l pivoted in a. slot Z in the upper plate C, and having a lug c at (lin/e end to engage the clutch-arm e for a certain part ot' each rotation ot the barrel and to thus release the hollow shaft, from the gear-wheel K, which `is, 'rotated continuously by the driving-pulley J.

A mandrel-chuck or driver 0 is mounted rotatably in a bearing y upon the front edge of 'the top-plate C and the mandrel j extends parallel with the hollow shaft 7).

Cam-levers m and m are pivoted upon the hollow shaft opposite. the upper and lower ends of the barrel F, and have short arms me, as shown in Figs. 3 and 9. to carry the journals r, r of the two winding-rolls l1., h', which are pressed upon opposite sides of the spring-coils s when the cams are operating upon the arms. The mandrel hangs between the rolls, and is rotated simultaneously therewith.

The hollow shaft b is connected by gearwheels g with the journals r, r of the pressing-rolls h, h', such gears being indicated merely in dottedlines in Fig. 3. and a gear-wheel 1', upon the roll h drives a train ot' gears n which is connected to the mandrel-chuck 0.

The gears 'n are indicated only by dotted circles in`Fig. (S. but where exposed in Fig. Ll. are shown provided with the necessary teeth. .Y

In this figure, the chuck of the mandrel y' is shown provided with a cog-wheel r which is connected with the gear-wheel i by the train of gears n.

The mandrel being very much smaller than the pressing-rolls h. 71.. is rotated by the gearing n at a much higher rotary ber of coils before the cam I automatically actuates theclutch and arrests the mandrel and rolls.: l

The wire 'v is guided and laid upon the mandrel by a wire-guide'having a lbody (j.

provided with a longitudinal slot t intermediate to its ends for the passage of the coiled springs. The guide has a head q upon which a spool u. is mounted, and the wireyis led from the spool into they slot through a throat lv. The guide is of rectangular section, as shown in Figs. 1a and 1", and is movable vertically in bearings t and t2. (See Fig. 1)." The upper end `of the guide above the slot is perforated for the passage of the mandrel which rotates therein, such perforation forming a bearing which operates to center the mandrel in the slot in proximity to the throat lv, and thus holds the mandrel firmly adjacent to the throat as the guide moves longitudinally upon the mandrel in coiling a spring.

The head qf projects above the throat lv, and is perforated merely for the passage of the mandrel through the head to the said throat, below which the slot in the guideis wide enough to receive the finished springs,

which. when the required number has been vwound with their intermediate connectors,

are severed from the wire by cutters fw shown in Figs. 1 and 5. The slot has covers t3 (Fig. 1a) which are komitted in Fig. l to show the openings s.

The cutters are pivoted upon an arm M.

(shown only in Figs. 1 and 2) adjustable.`

upon the supporting post A so as to vary the distance ot' the. cuttervfrom the mandrelchuck, as required by variations in the number and le'ngtlrof the springs in each integral series.

The cutters are pivoted like scissors blades. and the rear ends of their handles orlevers in project at opposite lsides of a drum fr: having cam-projections .fzz to press the levers apart in opposition to a spring w3.

The drum has hollow journals M carried in bearings upon the arm M, and is driven by a shaft :c2 extended through the plate B of the frame. and connected by gears g/ with the barrel F. as shown in Fig 1. so astg be actuated intermittently. The shaft is splined within the drum so as to drive the same in whatever position the arm M may be adjustled upon the post.

During the winding operation. the coils cannot slip endwise upon the mandrel as they Vare pressed tightly thereon, and the sloping cani-groove G on the barrel F.

crum to enable the uniform throw of the guide, and has a slot o2 crum can be adjusted.

The lever-pivot is a sleeve able in a slotted carrier P attached to the under side of the frame-plate C by a foot P2.

The sleeve is clamped to the' lever by a bolt and thumb-nut N2, when the lever and the plate -P are adjusted.

The frame P has scale-marks u', and the plate has index-marks by which the plate can be set in any adjusted position by the iscale..

When the clamp-nut is tightened, the sleeve rocks with the lever in the plate P.

lie reciprocation of the guide may thus be varied to suit the length of the spring-coils required in a single spring.

he cam revolves at a suitable speed to move the throat of the wire-guide at the same rate that the Wire-coils accumulate upon the mandrel, and through the automatic operation of the lever l and the clutch, the pressing-rolls are separated sutliciently to release {pressure upon the and the lever H has reached its extreme movement.

ach spring is wound during a portion of the upward stroke of the guide, and the straight connector formed mainder of the stroke.

hen the movement is sufficient to carry the throat o to the upper end of the rolls, the guide passes between the roll-bearings mi as is apparent from Figs. 3 and S, the gear-wheels n being arranged Wholly at the lett-hand side oi the guide so as to clear the saine, as shown in Fig. 6.

he gear-wheel n guide) has no spindle, but runs and thus permits the wire-guide the desired `height.

to rise to shown in Fig. 11, nector s', and such connector is formed between the successive springs in `the following manner.

clutch from the gear K.

he cams H continue to press the rolls l fitted to. turn in an adjustable plate P which is movduring the re- 't tion, the springs are same, as shown in Fig. l0, and the (which stands over the b on a stud, th

, matic, means tightly upon the wound coils, thus preventing any end movement of the coils while the guide g continues its upward movement.

uring such upward movement the throat o draws a portion s of the wire into the slot bove the wound spring, and when the upper limit the cams release the rolls i, i, which permits tlie loosening of the wound spring upon the mandrel descending movewire-guide reaches its lowest limit, Vthe cams and mandrel into rotation.

As the barrel F revolves continuously. the movement of the wire-guide is reciprocating, and as the coils, when the winding presupon the mandrel; the descending movement .i

guide causes the Wire which lies in guideand attached to the last coil of the spring, to carry the wound spring downward yin the slot t of the guide. ne Aspring is woundduring each rotation of the barrel F, and a series thus successively wound with nectors s', as shown in Fig. 11 and the series is cut off by the'cutters w; whichare connected to the barrel F by gearing so proportioned as to sever the wire after the barrel certain number of times. If desired, change-Wlieels may be'connected lto the gears i/ to vary the operation of the cutter.

The holes formed in the leaves ofthe book o receive the springs ,are preferably inclined, as shown in Fig. 10,' to admit a spring longer than of the springs engaged with the leaves of the clenching the same in e paper, or by any other suitable means.

aving thus set forth the natureof the l ook,'by 'bending and -invention what is claimed herein is:

nv a spring winding machine, the comlbination with a rotatable mandrel, of autofor intermittently rotating and mandrel, and means operating wind a series of a cylindrical spring upon the mandrel, and to shift such spring along the mandrel, when stopped, with a straight portion of the wire to form a tie with the succeedingsprin a guide slotted longi-, tudinally and having a throat at one side, of a mandrel rotated-fin .the slot, means for adv a mandrel extended vancing the guide longitudinally of the mandrel, means to Jfeed the wire to the mandrel through the throat, and rolls arranged to press toward the opposite sides ot' the mandrel and operating upon the coils of the springs through the sides of the slot.

3. In a spring-Winding machine, the combination, with a mandrel, and a slotted guide for delivering Wire thereto, of rolls arranged to press upon t-he coils at opposite sides of the slot, means for advancing the guide longitudinally of the mandrel, and means for arresting the rotation of the rolls in the closing part of the advance movement, whereby a portion of the wire is extended `straight along the mandrel from the end of ythe spring toform an integral connector with a subsequently Wound spring.

4. In a spring-Winding machine, the combination, with a guide slot-ted intermediate to its ends, of a passage in the upper end of the guide forminga bearing for a mandrel, through such passage for reciprocating the into the slot, means mandrel, rolls guide longitudinally of the arranged to press upon the spring-coilv through the slot at opposite sides ot' the mandrel, means for rotating the rolls during the irst part of the guides advancevmovement, such rotation being continued during through the slot at opposite mandrel, al cam rotated continuously and a lever connecting the said cam with the guide the said guide.

6. In a spring-Winding machine, the combination, with a mandrel and a slotted guide for deliveringa Wire thereto and iitted to move longitudinally ofthe mandrel, of rolls arranged to press upon the spring-coils at opposite sides of the mandrel, means for reciprocating/thev guide, means for rotating the mandrel andlthe rolls, andcams operating synchronously to reciprocate the guide, to press the rolls upon the coils of the Wound spring, and to arrest the movement of the rolls and mandrel when the spring is Wound to 'forman integral tie upon the spring.

In testimony whereof I have hereunto set my hand.

to reciprocate Jona W. HYATT,

the rolls during the

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