US1476416A - Machine for feeding and pointing hairpin blanks and the like - Google Patents

Description

Dec. 4 1923.

E. R. PERSON MACHINE FOR FEEDING AND POINTING HAIRPIN BLANKS AND THE LIKE Filed June 2 Sheets-Sheet 1 1 65 2?, Easom Dec. 4, 1923.. 1,476,416

' E. R. PERSON MACHINE FOR FEEDING AND POINTING HAIRPIN BLANKS AND THE LIKE Filed June 9, 1920 2 Sheets-Sheet 2 Patented Dec. 4, 1923.

UNITED STATES PATENT,GFF1CE..

EARL R. PERSON, LEOMTNSTER, MASSACHUSETTS, ASSEGNGR TO VISCOLQID COM- PANY, A CORPOEATION OF MASSACHUSETTS.

MACHINE FOR FEEDING AND POINTING HAIRPIN BLAHKS AND THE LIKE.

Application filed June 9,

To (ZZZ whom it may concern Be it known that I, EARL R. PnRsoN, a citizen of the United States, residing at Leominster, in the county of Worcester and State of Massachusetts, have invented a new and useful Machine for Feeding and Pointing Hairpin Blanks and the like, of which the following is a specification.

This invention, although capable of general use, is especially designed for feeding of celluloid hair-pin blanks in straight cylindrical form to a hair pin bending machine, centering them. with respect thereto, and pointing their ends.

The principal objects of the invention are to provide simple means for taking the blanks one at a time from a hopper in which they are located and supplying them to a carrier, to provide a carrier with an intermittent motion, and with means for grasping the blanks and delivering them to a centering and pointing device; and to provide an effective and mechanical pointing device for simultaneously pointing both ends of the blank and holding them in proper position to be delivered into the hair pin bending machine or other device for further treatment. Theinve-ntion also involves improvements in the details of construction of these various parts and in the way in which they are combined with eachother.

Reference is to be had to the accompanying drawings in which- Fig. 1 is a side view or". a machine constructed in accordance with this invention connected with a hair pin bending machine to which it delivers its product;

Figs. 2 and 3 are opposite end views of the same, and

Fig. 4 is an enlarged sectional view on the line H of Fig. 1.

The invention is shown as mounted on a frame or base which is also connected with a support 11 for the hair pin bending machine 12. The details oi the hair pin bending machine will not be described the one shown is described in full in my Patent. No. 1330,4-50 granted Feb. 10, 1990. it is provided with a pulley 18 on, a shaft- 14 I which receives power from a counter shaft 1920. Serial No. 387,567.

above or in any other desired way, and by belt drives a pulley 15 on the transverse ma n shaft 16 of the machine which is the sub ect of this invention.

The main shaft 16 is provided with a worm 17 operating a worm gear 18 on a longitudinal shaft 19 on which is a cam 20, preferably a double cam. The rotation of this cam depresses a roll 21 on a swinging lever 22 which by means of a link 23 operates a lever 29 pivoted on the frame 10 to lift a feed plate 25 pivoted to its end. The weight of this plate can be employed to hold the roll 21 up in contact with the cam if desired.

This plate is provided with a concave end at 26 large enough to hold one hair pin blank and no more and this reciprocates up and down in a. hopper 27, the bottom walls 28 of which converge toward the center so that the hair pin blanks or other cylinders will roll down to the bottom of it and one of them will be lifted practically every time the plate 25 rises in the hopper. This constitutes the means of feeding one blanket a timeup out of the hopper until the last one is discharged from it. This concave top 26 is so narrow that there is no possibility of feeding two blanks at once.

Also mounted on the shaft 16 there is a pinion, not shown, which meshes with a gear 81 on a shaft 32 provided with another cam 38, preferably a double cam, which operates a roll 34 on a springpresscd lever 35 pivoted at 36. This lever is provided with a link 37 at its free end to which is connected a spring-pressed ratchet tooth 38 mounted in a holder 39 at its end. This engages a ratchet wheel l0 and every time either end of the cam 33 depresses the lever 35 the ratchet tooth 38 will engage one or the teeth or" the wheel 40 and advance this wheel the length of the space between two adjacent teeth. This gives the shaft il on which the ratchet wheel 40 is fixed an intermittent rotary motion in the direction of the arrow.

(in this shaft -11 is mounted a rotary car rier Thisis provided with aplurality ot pairs or" spring gripping devices 48 equal in num er of sets to the teeth of the whee.

t0 and each consisting of two pairs of spring fingers which are near enough together to grasp a hair pin blank between them and hold it and are spread apart at their ends to permit it to receive them.

The intermittent rotation of the carrier presents the blanks held by the grip lingers i3 periodically into position in which they can be acted on by the pair mechanism Mounted on the shaft il there are tvo cams 44; each operating a roller to, each of which is mounted on a lever pivoted at at? be tween its ends and pivotally connected at its upper end with a holder 48. On a stationary projection 49 on the frame it) pivoted a link 50, the upper end of which also pivotally connected with the holder 48. The holder -18 wiLl move in a slightly arenate direction out and in. This holder is provided with a pulley 51 which rotates a cutter shaft 52 on which is mounted a cylindrical cutter 53 rotating on an inclined axis. It has spur gear teeth 55 on one side meshing with an internal gear on the holder 48. This cutter rotates around the center with a planetary motion so as to sharpen or cut a point ona hair pin blank when it is centered in a conical center with which this holder is provided. This mechanism is duplicated on the other side and it will be seen that the operation involves the presentation of the hair pin blank or cylindrical rod by means of the carrier 42 directly in line with the centers at, at which time the caricr stops. Then the cams 4:4 actuate the parts just described to bring up the centers 54- and accurately center the blank at both ends, and then to move further in so that the blank will be sharpened at both ends. Then the cutters are automatically withdrawn and the carrier 42 takes another step forward, after which the blank is discharged in the following way.

The cam 2-0 operates a roller 56 on a lever 57 connected with a link 58 that osciIlates an arm 59 on a shaft- 60 supported by the frame 10 and which is provided with ejectors 61 in the form of two or more hooks. These periodically engage the blanks held by the springs 13 and detach them, allowing them to fall from these hooks and drop on an inclined surface (32 which delivers them into a hopper G3 oftlie hai in bending machine 12.

twill be understood of course that the form of the hair pin bending or making machine to which the blanks are delivered is immaterial, and I will not describe the same in detail except to say hat in the form shown the blanks are fed out of the hopper 63 and rolled along the table Gel; unt l they come against. stops not shown. Then a pluncgn inov "ward to bend the pins and 1 .aoves down to sir e the ,L but any other mechanism can be employed at this point and the machine which is the subject of this invention can be used by itself.

Although I have illustrated and described only a single term of the invention I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims,

Therefore I do not wish to be limited to all the details of coi'istrnction herein shown and described, but what I claim is:

1. In a machine for pointing the ends of rod-like blanks, the combination of a pair of centers for supporting the ends of said blanks, a holder on each side of the machine, said holders being mounted to swing, substantially parallel motion connections for swinging them forward and back, and a cutter behind each center in each holder for engaging the surfaces of the end of the blank and simultaneously pointing both its ends.

:2. In a machine for pointing the ends of rod-like blanks, the combination of a pair of centers for supporting the ends of said blanks, a cutter behind each center for engaging and cutting the end of the blank, two holders, a shaft having hearings on each holder for supporting one of said centers, and cutters and operating the cutter, a lever supporting one end of a holder for moving it back and forth, a link connection supporting the other end always at substantially the same level as the end supported by the lever, and means for moving said levers toward each other to center the blank and point both its ends.

In a machine for pointing the end of a rod-like blank, the combination of a center for supporting; the end of one of said blanks,

a cutter behind the center for engaging and cutting the end of the blank, a movable holder, a shaft on the holder supporting the center and cutter and rotating the cutter, a lever pivotally connected with the forward end of the holder, positive means for operating the lever to swing the holder'inwardly to operative position, and a link pivoted to the hoder at the same level as the lever is, and pivoted to a stationary part of tie machine at substantially the same level as the pivotal support for the lever for moving said center and cutter forward to center the blank and point its ends.

4. ln a machine for pointing the end of a rodlike blank, the combination of a center for supporting the end of said blank, a cutter behind the center for engaging and cutting the end of the blank, a lever for supporting said center and cutter and moving them into a position to center the blank and point its end, and a link for ensuring a parallel motion for the center. i

5. In a machine-of the characte described, the combination of a rotary carrier having a series of pairs of radial flat spring fingers each fixedly mounted thereon adapted to engage the blanks to be operated upon and clasp them by their own resiliency at a distance from the carrier, means for rotating said carrier by a step-to-step motion, a hopper below the carrier for receiving the blanks, means for positively moving a single blank up from the hopper in a radial direction into the space between a pair of said 10 fingers when the carrier is in stationary position with said pairs of fingers extending downwardly, and means for stripping the blanks from the fingers.

In testimony whereof I have hereunto 15 affixed my signature.

EARL R. PERSON.

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