US1050844A - Box-end-stapling machine. - Google Patents

Description

' G. J. OLTSGH.

BOX END STAPLING MAGHINE.

nrmouxox FILED 11u29, 1911.

1,050,844, Patented .1311.211 1913.

@www

Umrnn STATES rnrnnr ornicn.

GEORGE J'. OllilsCH,y OF SOUTH BEND, INDIANA.

:Box-END-srArLING MACHINE. v

Specication of Letters Patent.

Patented J an. 21,1918.

Application tiled May 29, 1911.v Serial No. 630,013.

from the inner sides of the ends, the ends" being of thinner lumber than the cleats, and secure the ends against the inner sides of the end cleats of the blank by driving the staples through the ends into the cleats. In, driving the staples from the inner sides of the box, it has been found in practice to be very advantageous in assembling and holding the box parts, and movingthe same during the stapling operation 'by hand, thatthe staples be driven in an upward direction.

The object of my invention is to provide a stapling machine in which the staples are delivered to the driving means in. an inverted position, without the use of any movablev delivering mechanism, thus greatly simplitying the structure and entirely abolishing the comparatively complex I:tuated mechanisms now employed in the art for that purpose.

In carrying out my invention I prefer to provide the machine with staple forming means, although it is to be understood that the machine may be arranged to use ready formed staples without departing from the spirit of my invention, which relates primarily to the new and novel means employed :tor delivering the staples inverted to the driving means, and in connection with which any suitable staple forming or supplying means may be employed.

Referring to the drawings, in'which are shown the preferred embodiment of my invention-Figure 1 is a side elevation, partly in section, of the head end of a stapling machine illustrating the invention. Fig. 2 is a horizontal sectional view taken on the` line -m of Fig. 1.

lilhe machine head comprises the frame 1,

y regulation U-shaped form of a staple.

supported in the usual manner by a standard not shown), and upon which standard the requisite pulleys and cams are mounted for actuating, through the medium of suitable connections, th'e staple forming, staple driving and wire feeding mechanisms, all of' which are arranged to operate in their proper order. As such actuating means are old 1n the art and forming no material part lof the present invention, an illustration and description thereof is dispensed with, it be-` ing sufficient for a clear understanding of the present invention to know that any suitable devices may be employed for actuating the-staple forming, staple driving and wire feed devices which are illustrated in the drawings and described herein.l A plate 2,y

mounted in ides 3 and lt, to be reci rocated up an down, carries a staple drlver 5. The p1ate2 is reciprooated by a rocking lever 6, which is pivotally connected With" the plate by a pin 7, which projects through a slot 8 in the' vertical wall of tlie'frame, the

rocking lever and head beingdisposed on opposite sides of said wall. Secured to the lar shaped plate 9, having an extended arm 10 provided with a central vertical slot 11, and an opening 12 intersecting said slot and passing entirly through the arm, said opening being somewhat larger than the staple guide 13, in' which the staple driver 5 is arranged to slide. An opening 14 is arranged in the plate 9 in alinement with the opening 12, and Islotted in .its upper and lower sides, as indicated at 15 and 16, to form a die, throughwhich the wire is forced'by the staple forming plunger and bent into tlp plate 18 secured to the frame,.as by screws, and in spaced relation with y, the plate 9, is provided with openings 19 and 20, in alinement respectively with the openings 14 and 17 in the plate 9, and through which open-` ings the staple forming plunger, and a cutter member for severing the Wire into proper lengths, reciprocate.

Fixedly secured between the opposite edges of the plates 9 and 18, is a pin 2l,

.80, Iframe, as by means of screws, is an irregu' the upper end ofv which is tapered and provided with a central longitudinal bore. A curved tubular guide 22, fixedly secured to the frame, adjoins said pin at its lower end, the lower end of the guide being disposed in line with a wire-feed device, presently explained, so that the wire will be fed Vthrough the guide and pin from'a horizontal to a vertical position, and in line to be operated upon byV the staple forming lunger and wire cutting'device. rlhe wire ceding device consists of a pair of serrated jaws 23, 23, tapered at their outer edges, and disposed between the converging walls of a reciprocated block 25,V the serrated edges of the jaws being held in gripping relation with the wire, on the feed stroke of the block, by a spring 26, which forces the jaws toward `the converging walls of the block. 0n the return stroke of the block, the jaws move toward the diverging ends of the walls against the tension of thesprmg, and release their grip upon the wire, at which time the wire is held against retractive movement by a sharp edged nger 27, which contacts with the exposed wire through a cut-out portion in the guide, as shown, whereby any downward movement of the wire causes the finger to bind the wire against the wall of the guide, while permitting a free upward movement of the wire without a binding action thereon. The block 25 is actuated by a cam (not shown) so as to intermittently feed a length of wire, and at the proper time, to be formed into a staple in a manner lpresently explained.

Immediately after the proper length of wire has been fed in line to, be acted upon by the staple forming plunger and wire cutting device, those members are actuated to erform their severalfunctions. The staple orming plunger 28 is carried by a reciproeating head 29, which slides in guides 30 and l3l secured to the frame, and which head also carries a pivoted finger 32, nor- .mally pressed inwardly by a spring 33.

The free end ofthe linger is shouldered at 34, and engages the head of a wire cutting member 36, having a cutting` edge 37 on an angle corresponding with the upper` tapered end of the pin.21. The linger 32 is provided with a laterally .projecting trip finger 38, which engages a` cam block 39 when the linger has been moved forward a suilicient distance for its end to sever the wire, and disengages the end of theiinger A from the head end of the cutting member,

whereu on the latter,under the influence of the spring 40, is returned to its normal position, while the finger 32 continues its stroke with the head with which it is pivotally connected, its end sliding upon the plate 18, to

one side of thecutter member. A stop pin es 41 limits the movement of the cutter member in one direction, kand against which said member.

member normally rests, the end of the finger 32 being forced against the frame alter it passes the head end of the cutting meinber, and in line with the latter, so that upc-n the next forward stroke, the end of the finger will abut with the head end of the cu tting member, and the operation above descrlbed repeated. Simultaneous with the severing of the wire, the end of the plunger 28 engages the severed part intermediate its ends Vand forcing the same through the slotted opening 14, bends the wire into the U-shaped form of a staple. The stroke of the plunger continues until the Joints'of the staple have passed a stripping nger 112, pivotally connected to the frame, the free end of which is raised by the staple contacting with the rounded under side of the laterally projecting portion thereof, and drops by gravity as soon as the staple has passed. the same, so that upon the return stroke of the plunger the staple ends will contact therewith and the staple will be stripped from the plunger.

As the staple is stripped from the plunger, it falls and slides down the inclined slot 11, its head end contacting with one pole o'f a magnet, the poles 44: and 45 of which are exposed on one side through the wall of the vertical staple guide 13, while the magnetic attraction of the opposite pole upon the upper leg of the staple will cause the same to tilt and be held by magnetic attraction, with the points thereof directly upwardly, and properly disposed within the guide 13 to be acted upon by the driving Even though the magnet used should not be strong enough to attract the staple to a vertical position, the slightest upward movement of the staple driver will, owing to the resistance of the magnet against moving the staple, whichis in con'- tact therewith at one side thereof, cause the same to swing into a vertical position, and in consequence of which a permanent magnet may be advantageously used. vThe magnet illustrated in the drawings is of the horseshoe type, with its ends bent so as to fit around the nose of the machine frame, and its major portion seated in a cavity in the side of the frame, as represented by dotted lines in Fig. 2. It is obvious that an electromagnet or any other suitable type of magnet may be used for the purpose herein described.

Having thus described my invention, what is claimed is- 1. In a stapling machine, the combination with mechanism for driving a sta le in an upward direction, of means for' elivering the staple by gravity to the driving mechanism in a position out of the vertical, and magnetic means for attracting the staple to a'vertical position and holding the same to be acted upon by the driving mechanism.

.Slo

,25. posltion, of means for driving the staple upstaple will contact with the magnet and the 2. Ina sta ling machine, the combinationwith staple ormlng and upwardly driving mechanism, of inclined means for guiding and delivering the staple from the forming to the driving mechanism by gravity, and magnetic means for attracting the staple from an inclined to a vertical position with the points uppermost, and holding the same in the path of the driving mechanism.

3. In a sta ling machine, the combination with means or delivering the staple headend foremost, of means for driving the staple upwardly, a vertical guide for the staple and the driving means, an inclined guide for receiving and delivering the staple to the vertical guide by gravity, and a magnet disposedl opposite the lower end of the inclined guide, whereby the head-end of the staple will strike the magnet at an angle and the points thereof will be attracted upwrdyl and held indriving position.

chine, the combination withl a staple former adapted to deliver the staple in 'a horizontal wardly, a verticalguide for the staple and the drivin means, an inclined guide for re ceiving an conducting the staple by gravity to the driving -mechanism, and a magnet disposed o posite the lower end of the inclined gui e, whereby the head-end of the points thereof be attracted to and held in a a staple forming and driving ma-l vertical position to be acted upon by the4 driving means.

5. In a stapling machine, the combination with staple forming and drivin mechanism, of a guide member provide with an inclined slot to receive and deliver the staple by gravity, a vertical guide. for the staple and for the driving mechanism, and a magnet exposed through the wall of the latter guide to attract and holdl the staple inI a vertical position within said guide.

6. In a stapling machine, the combination with mechamsm for driving a sta le in an the head-end of a staple to a point above the driving mechanism and in a position out of the vertical, and magnetic means for attracting the driving points of the sta le upwardly into position for upwardly riving.

7. In a stapling machine, the combination upwardly direction, of means for elivering.

with a staple driver, of a fixed guide for thel t GEORGE J. OLTSCH.'

` Witnesses A Trios. M. HARRISON, L. HUNSBEBGER.

whereof I aiiix my signature'

Images