US1735580A - Wireworking machine - Google Patents

Description

Nov. 12, 1929. MAGIDSON F,735,58@ WIRE WORKING MACHINE Original Filed Aug. 5, 1926 4 Shee ts-Sheefl 1 INVENTOR Frank 772a idson A TTORNE Y 6' Nov. 12, 1929. F. MAGIDSON WIRE WORKING MACHINE 4 Sheets-Sheet 2 mvbggog Original Filed Aug. 5, 1926 Frank 72a BY Nov. .l2, 1929. F. MAGIDSON 1,735,580 WIRE WORKING MACHINE Original Filed Aug. 5, 1926 4 Sheets-Sheet 3 mmvToR Wank Mayidson A ITORNEY Nov. 12, 1929.

F. MAGIDSON 1,735,580

WIRE WORKING MACHINE Original Filed Aug. 5, 1926 4 Sheets-Sheet 4 3 INVENTOR Frank maildson A TTORNEY Patented Nwfia ieza FRANK HAGIDSON, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR '10 STAR-SERVICE HANGER COMPANY, 011' DETROIT, MICHIGAN wmnwonxme nacnnrn Original application filed August 5, 1926, Serial No. 127,317, Patent No. 1,695,603, dated December 18,

1928. Divided and this application filed November 8, 1928.

, The subject matter of this application is disclosed in my application for Letters Patent filed August 5, 1926, Serial No. 127,31 7, and

this application is a division thereof.

' The main object-of this invention is to provide in a wire working machine an improved means for twisting the ends of an article, such as a garment hanger, together.

Objects pertaining to details and economies is of my invention will definitely appear from the description to follow. The invention is defined in the claims.

A machine embodying the features of my invention is clearly illustrated in the accomle panying drawing, in which: Fig. 1 is a plan view of a machine embodying my improvements as I have adapted the same for the manufacture of garment hangers. Fig. 2 is a detail vertical section on line as 2-2 ofFig. 1.

Fig. 3. is a detail section on line 33 of Fig.1.

Fig. 4 is an enlarged detail plan view showing t e forming arms in actuating position,

the ends of the wire forming the hanger being shown in their initial position in the twister, and the forming arms being shown iin their retracted or initial position by dotted nes.

' Fig. 5 is a detail view partially in vertical section showing the twister head in discharging position.

Fig. 6 is a top plan view of the twister head in operative position or in position to receive the ends of the wire.

Fig. 7 is a detail view mainly in section on line 7-7 of Fig. 6.

' Fig. 8 is a sectional view on line Fig.

Fig. 9 is a detail view mainly in section on line 9-9 of Fig. 7.

Fig. 10 is a view similar to Fig. 9 but with V the twister head turned 90 degrees with the locking device in unlocked or releasing posi tion. Fig. 11 is a sectional view on line 11-11 of Fig. 5 showing means tor'holding or looking the twister head against rotation during the discharging operation.

59 In the accompanying drawing I have illus= Serial No. 317,913.

trated only such parts ofa wire forming machine as I deem essential to the proper illus- .tration of an embodiment of the subject matter of the claims herein, the machine being completely illustrated in my above mentioned application for Letters Patent of which this application is a division.

The bed 1 of the machine is of suitable design to support the various mechanisms in proper cooperating relation. The stock wire 2 is fed into the machine by means of a feed mechanism designated 7 generally by the numeral 3 and comprising feed rollers, one of which is illustrated at 4. v ihis feed mechanism is made the subject matter of acopending application which is also a division ofv my said application SerialNo.h127,317.

The stock wire is delivered by the feed mechanism through the wire straightening mechanism. designated generally by the numeral 5 and into operative relation to a former block or plate 6, and also to a hook forming mechanism describedin detail in my said application Serial No. 127,317. This hook forming mechanism forms a hook, as 7, while the wire is in its initial forming position in the machine, see Figs. 1' and 4.

The wire is severed from thestock by a cutter conventionally illustrated at 8.

After the hook has been formed and the section of wire severed from the stock, the forming arms 9 are actuated to wrap or storm the wire around the form plate 6. These arms are shown in their actuated position in Fig. 4. The detailsof the mechanism for actuating the arms. are not shown or described in this application.

As the ends of the wire are wrapped around the form plate, they are guided by the guide members 10 and 11, the guide member 10 guiding the longer or hooked end of the wire. These guide members direct the ends of the wire as shown in Fig. 4 into a twister head 12 which is located on the median line of the former plate 6. This twister head is mounted on a shaft 13 which carries a beveled or crown gear 14. The shaft 13 is journaled in bearings carried by the frame 15.

This frame is provided with oppositely projecting trunnion members 16 and 17, the

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trunnion 16 being tubular. The shaft 18 which carries the beveled or crown gear 19 is disposed in this tubular trunnion and this shaft is journaled in a bearing 20 carried by a bracket 21 on the front of the bed of the machine. The trunnion 17 is journaled in a bearing 22 which is also carried by this supporting bracket 21.

On the trunnion 17 is a pinion 23 while the shaft 18 has a pinion 24 keyed thereto. The pinion 23 meshes with a rack'25 reciprocating in the guideway 26. A similar rack 27 reciprocating in the vertical guideway' 28 coacts with the pinion 24.

On the outer end of the trunnion member 17 is a collar or abutment 29 and in spaced relation thereto a collar or sleeve 30. A coiled spring 31 is arranged on the trunnion member, one end thereof being secured to the member 29 and the other to-the collar 30. The spring is placed under tension by rotating the collar and locking it in its'adjusted position to a stationary part of the machine by means of the pin 32. Thus arranged the spring acts or is so stressed that it tends by rotating the gear 23 to force the rack 25 downwardly tothe lower limit of its stroke or travel.

An adjustable link '33 connects the rack 25 to the swinging end of the lever 34 which is pivoted at 35 in coacting relation to the cam 36. This lever carries a roller 37 coacting with the cam. As the rack is moved downwardly it will cause the head to move from the discharging position to receiving or twisting position, and when the rack moves upwardly under the action of the cam it will swing theframe, and therefore the twister head, from the receiving to discharging position. During this travel of the frame the gear 14 rolls on'the gear 19 and consequently rotates the twister shaft 13.

The rack 27 is connected by the adjustable link'38 to the lever 39 which is pivoted at 40 to coact with the cam 41. The lever is provided with a'roller 42 which is engaged by the cam.

The shaft 18 carrying the gear 19 and the pinion 24 is provided with an abutment 43 at its outer end and a collar 44 adjustably supported by means of the pin 45 substantially as described for the collar 30. A coiled spring 46 is secured at one end to the abutment 43 and at the other to this collar so that the spring acts to rotate the gear 24 to yieldingly' urge the rack 27 to the upper limit of its travel.

The twister head 12 is provided with a socket 47 to receive the shaft 13 to which it is pinned. The head is provided with a slot 48 extending from side to side, the edges of the slot being beveled ofi or chamfered at 49 to facilitate the entrance of the wire into the slot. The slot is longer at one side, as 50, than on the other side, as at 51, the interveiling metal being curved at 52 providing a stop for the rear portion of the hook as the hook end of the wire is forced into the head, see Fig. 411 The hook end of the wire enters through the long 'side of the slot while the straight end enters through the short side.

The head is provided with a hardened lower aw 53 having a shank 54 extending into a bore 55 provided therefor in the head. This shank is clamped in position by means of the set screw 56. An upper coacting jaw 57 is provided with a shank 58 mounted in the bore 59 for rotative movement therein. A pin 60 is threaded into the shank 58 and ex- EEIICEIS through ,a slot 61 in the body of the The operating lever 62 is pivoted at 63 on the head by means of the shoulderedscrew 64 to coact with the pin 60 for controlling the jaw 53. The lever has a slightly elongated slot 65 to receive the pin.

The jaw 57 has its sides slotted as shown by dotted lines at 66 to slidably receive a U- shaped gate member 67. The inner ends of the gate member are beveled as-shown at 68 so that the gate will be lifted as the ends of the wire are forced to position between the jaws. The gate member is yieldingly held in wire locking or operative position by means of the coiled spring 69 supported by a pin 70 extending through a bore 71 in the cross portion of the gate This pin is threaded into the jaw member and its outer end is provided with an adjusting nut 72 forvarying the'tension of the spring.

The bore formed. in the jaw member for the pin 70 extends through the jaw member but has its diameter reduced to receive the hardened pin 73. This pin 73' is held in position by t lzle pin 70 which abuts the head of the in 3. p The lever 62 is held in its normal or initial position by means of the coiled spring 74. The rearend of the twister head body is reduced at 75 and. this reduced portion has a stop shoulder 76 formed thereon. a This stop shoulder coacts with a pawl 77v pivoted at 78 on the. supporting frame 15. The bracket 79 carries a tappet 8O threaded for adjustment and adapted to engage the lever 62 when the twister head is moved to discharging position.

This engagement of the lever with this tappet rocks the jaw 57 of the twister head to releasing position as shown in Fig. 5.

The actuation of the cams 36 and 41 is suitably timed or synchronized. with the coopcrating mechanisms so that when the wire is bent or formed around the form block 6 the twister head is in position to receive the ends of the wire as shown in Fig. 4. The head is then rotated to twist the ends of the wire together as indicatedin Fig. 5 and the twister head is swungto dischar ing position as shown in that figure. The formed hanger is shown in partially discharged position in Fig.

ent hanger forming machines such as illustrated in my said application for Letters Patent of which this is a division. I have not attempted to illustrate other adaptations or modifications which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my improvements asmay be desired. Having thus described my invention what I claim as new and desire to secure by Letters Patent is: g

1. In a wire working machine, a twister comprising a body having a slot for receiving wires from opposite sides thereof, a stationary jaw, a pivoted jaw, a locking device carried by the pivoted jaw for locking two wires in side by side position between said jaws, a spring for moving said look into locking position, said lock having tapered sides whereby the same is forced to unlocking position by the wires entering said slot, and means for swinging the pivoted jaw to discharge the twisted article.

2. In a wire working machine, a twister head comprising one fixed and one pivoted jaw, means for delivering the wire to be twisted between said jaws from opposite sides thereof, means for automatically locking said wires within said jaws in side by side relation, means for holding the main body of the wire against rotation, means for rotating the twister head to twist the wire projecting therefrom and immediately adjacent thereto,

and means for swinging the twister head to discharge the twisted wire therefrom.

3. In a wire working machine, a twister head adapted to receive two strands of wire in side by side relation, a reciprocating lock mounted on said head and adapted to be opened by the wire entering the twister head, a spring for closing said lock, and means for swinging said lock to discharging position.

4. In a wire working machine, a twister head adapted to receive two strands of wire in side by side relation, a reciprocatinglock mounted on said head and adapted to be opened by the wire entering the twister head, means for automatically closing saidlock, and means for swinging said lock to discharg. ing position.

5.111 a wire working machine, a twister 3 disposed centrally relative to said locking member.

6. Ina wire working machine, a twister comprising a body having a slot for receiving wires from opposite sides thereof, a pair of coacting jaws, one of which is mounted for rotative movement on said body member, and a locking member reciprocatinglyjmounted on said pivoted jaws.

7. In a wire working machine, a twister head comprising a. fixed and a coacting piv- 'oted jaw, means for delivering the ends of wire to be twisted together from opposite sides of said jaws, alocking device yieldingly mounted on the pivoted jaw to automatically engage the wires as they are delivered to the hand. V

FRANK MAGIDSON.

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