US1522974A - Wire-stitching machine - Google Patents

Description

I N VEN TOR.

A TTORNEYS Jan. 2

1,522,974 J. N. PAGLIARUL WIRE STITCHING MACHINE Filed April 1922 6 Sheefis-Sheet z INVENTOR.

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ATTORNEYS.

Jan. 13, 1925. 1,522,974

I I J. N. PAGLIARUL WIRE STITCHING MACHINE Filed April 5, 1922 6 SheetsSheet 3 k 45 U u I INVENTOR.

J. N. PAGLIARUL j WIRE STITCHING MACHINE Filed April 5, 1922 e Sheets-Sheet 4 INVENTOR.

" ATTORNEYS.

Jan. 3, 5- v 1,522,974-

J. N. PAGLIARUL WIRE STITCHING MACHINE Filed April 5, 1922 6 Sheets-Sheet 5 INVENTOR.

Z W0 W4.

ATTORNEYS.

v Jan. 13, 19 5- 1,522,974

J. N. PAGLIARUL WIRE STITCHING MACHINE I Filed April 5, 1922 6 Sheets-Sneet 6 A TTORNEYS.

' INVENTOR.

Patented Jan. 13, 1925.

PATENT OFFICE.

JOSEPH IT. PAGLIARUL, F MILWAUKEE, WISCONSIN.

WIRE-STITCHING MACHINE.

Application filed April 3, 1922. Serial No. 549,346.

To all whom it may concern:

Be it known that I, JOSEPH N. PAGLIARUL,

a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented'new and useful Improvements in Wire-Stitching Machines, of .which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relates to wire stitching machines and has for oneof its objects to provide a machineof this character 'in which wire staples suitable for securing together overlapping portions of a card-board box or other receptacle may be formed from a continuous strip or roll of wire and may then be inserted through the said cardboard and clinched over, the entire operation being automatic from start to finish.

A further object .of the invention is to providemeans for feeding the wire to the staple forming mechanism, which means are actuated intermittently, as well as to provide an improved staple forming mechanism which will accurately and'rapidly perform its operations.

A further object of the invention is to provide staple forming mechanism in which the parts are so designed and assembled that the box and the legs of the staples will be efficiently supported during their penetration of the box material.

A still further object of the invention is to provide automatic means for cutting the wire from which the staples are formed.

A still further object ofthe invention is to provide a machine of this character which will be comparatively simple in construction, inexpensive to manufacture and more efiicient in use than those which have been heretofore proposed.

With these and other objects in view, the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the accompanying claims.

Referring to the accompanying drawings forming a part of this specificatiomin which like numerals designate like parts in all the views:

Figure 1 is a front elevetional view of a stitching machine made in accordance with the present invention;

Fig. 2 is an end elevational View of the parts shown in Fig. 1 as seen from the right of said Figure;

Fig. 3 is a front elevational view on an enlarged scale of the staple forming and wire feeding mechanisms, portions of the protectingcasing being broken away for the sake of clearness;

Fig. 4 is a central vertical sectional view taken approximately on the line 4l4 of Fig. 3, looking in the direction of the arrows;

Fig. 5 is a horizontal sectional View taken on the line 55- of Fig. 4, looking down;

Fig. 6 is a vertical sectional view of a portion of the cutting mechanism taken on the line 6-6 of, Fig. 3;

Fig. 7 is a vertical sectional view partly in elevation taken on the line 77 of Fig.

Fig. 8 is an enlarged detail view of means employed for regulating the length of the wire which forms the staple;

Fig. 9 is. a vertical sectional elevational view of the clutch member employed upon the main drive shaft;

Fig. 10 is a vertical sectional view taken on the line 10-10 of Fig. 9; and

Fig. 11 is a vertical sectional view of the wire-feeding mechanism taken approximately on the line 11-11 of Fig. 3.

Referring more especially to Figs. 1 and 2 of the drawings, 1 indicates any suitable base upon which is mounted an upright standard 2 provided with the horizontally extending arm 3 in which is suitably journaled the mainrpower shaft 4 which carries uplon one end a driving pulley 5 around w ich passes a belt 6, which belt receives its power from the pulley 7 mounted upon the shaft 8 of an electric or other suitable motor 9 carried by the base 1. The said power shaft 4 may be provided with a suitable clutch mechanism 10 (see Figs. 2, 9 and 10) for engaging and disengaging the driving pulley 5 with the said shaft 4, whereby power may be transmitted from the one to the other, and the said clutch mechanism may be controlled by means of the vertically extending rod 11, thelower end of which is connected and ada ted to be actuated by means of either of t e pedals'12 or 13.

The arm orextension 3 of the standard 2 has rigidly secured only to its outer end a will presently appear.

vided with the two arms 15 and 16 (see Fig. 1), the last mentioned arm 16 comprising a table or support for the cardboard or other material which is being operated upon. The arm 15 of the U-shaped member 14 is rigidly secured at one end to the forwardly projecting horizontal arm 3 of the standard 2, and extends a considerable distance laterally, toward the left as seen 1n Fig. 1, although it is obvious that 1t might be reversed and extended toward the right, if desired. The lower arm 16 of the member 14 forms a rev'ersely bent spaced continuation of the arm 15, and'constitutes a table or support for the box blanks, which as shown, extends a considerable distance to the right of the horizontal standard arm 3.

The arms 15 and 16 thus form a bight or loop, through which the opposed edges of the box blanks which are to be stitched together, may be introduced from -op osite sides and overlapped preparatory to emg subjected to the stapling mechanism. That is to say, the blanks are preferably fed in a fiat condition on a. moving conveyer (not shown to a point below the left hand portion 0 the arm 16, with their opposed edges which are to be stapled lying respectively in front and in back of the said arm. These said edges are now lifted and introduced from opposite directions through the bight or loop between the arms 15 and 16, thus causing the blank to assume a substantially: rectangular shape about the arm 16. The said edges are overlapped the required distance, and the blank is then moved from left to right, as viewed in Fig. 1, to the stapling mechanism, which will now 'be described. The end of the shaft 4 opposite to that carrying the driving pulley 5 has rigidly secured to it a cam member 17 provided with a suitably designed cam groove 18 and also having an outer cam face or surface 19 for a purpose ,Which will appear more fully be low. The-said cam member 17 may be enclosed within a suitable housing or casing 20. the back wall 21 of which casing may constitute a support for the staple forming members, the wire feeding mechanism and the wire cutting mechanism, as will presently appear. The staple forming mechanism, as best illustrated in Figs. 3, 4, and 5, comprises a vertically movable slide member 22 adapted to reciprocate up and down in a slot or groove 23 cut in the said wall 21 (see Fig. 5). The said slide 22 is provided at or near its upper end with a roller 24 which engages the groove 18 with which the cam member 17 is provided, whereby motion may be imparted from the-said cam member to the said slide, for a purpose which itself provided with a groove or guideway 25 extending substantially the full length The said slide 22 is thereof in which is slidably mounted for vertical movement a second slide member 26.

Motion is likewise imparted to the said second slide member 26 from the cam member 17 by means of a link 27 which is pivotally secured to the said slide 26 as at 28 and to the said cam member 17 as at 29 (see Fig. 3). It thus results that the motion imparted to the second slide member 26 is substantially that produced by an eccentric while the motion imparted to the slide member 22 is controlled entirely by the design of the cam groove 18. The parts are so designed and assembled that the slide members 22 and 26 move downwardly at the same time, but'the member 22 is caused to move at a faster speed than the member 26, due to the particular shape of the came groove 18.

Carried by the said slide member 26 and reciprocating therewith'is a pivoted dog 30 of substantially the shape shown in Fig. 4, said dog being controlled by aleaf spring 31, as will be readily. apparent The back wall 21 of the casing 20 is bored as at 32 to accommodate a slidable staple holding pin 33,-

one end of which is enlarged and provided with a groove 34 which is entered and engaged by the fiat spring 35 secured to the said wall 21 and normally tending to hold the said pin 33 against rotation and in the position illustrated in Fig. 4. The other end of the said pin 33 is tapered or beveled, as clearly indicated at 36 (see Fig. '4), and the said beveled end is provided with a transverse slot or groove 37 through which the wire from Wl110l1 th6 staple is to be formed is adapted to pass. 7 The said pin 33 constitutes a wire staple holding member and is positioned medially of the slide members.

22 and'26. As the last mentioned slide member descends under the influence of the link 27 its inner corner 38 engages the beveled face of the reciprocating wire-holding pin 33 and causes it to move to the right, as seen in Fig. '4, against the pressure of the spring 35.

Particular attention is directed to the fact that the staple pin 33 is reciprocally held in operative position by the spring 35 and that when it is desired to remove the staple holding pin 33, it is only necessary to swing the spring 35 to one side and the pin 33 may then be easily' withdrawn. This removal can be easily accomplished without the use of any tools.

- The pin 33 is formed with an annular groove 33 to permit dust or other foreign matter to lodge therein 50' as not to interfere with the movement of the pin, and which pin can be easily removed, as before described, toclean the dust from the' pin The table or supporting arm 16 of the U- Shaped member 14 is provided directly below the staple forming mechanism with an anvil having a plurality of grooves or depressions 41 adapted to be engaged by the legs of the staple member after they have penetrated the card-board or other material 42, whereby they may be first turned inwardly and then upwardly to clinch the staple. The said anvil 40 is adapted to be adjusted vertically to accommodate different thicknesses of card-board by means of an adjusting screw 43, as will be clear from Fig. 4.

Attention is also particularly directed to the fact that the'supporting arm 16 is entirely free from direct connection with the standard 2 and the arm 3 and that the entire horizontal portion of the arm 16 is free and-unobstructed so that the entire arm may be used for supporting the box material to be stapled. It will also be noted that the arm 16 extends comparatively a considerable distance to the right of the stitching mechanism, as shown in Fig. 1, to permit the easy turning of the box material thereon from side to side to position the overlapped portions to be stitched. The U-shaped arm forms a rigid stru'cture for supporting the box material and for receiving the blows of the hammer in clinching thestaples.

Associated with the said staple forming mechanism is a wire cutter 44 comprising a vertically reciprocating member 45 provided with a suitable shear or other cutting member 46 rigid therewithand adapted to co-act with a stationary shear member 47, all as will be clear from Figs. 3 and 7. Said reciprocating member 45' may be guided in suitable ways provided in the frame work of the machine and the said member is bored as at 48 to accommodate the vertically disposed guide pin 49 around which is mounted a coil compression spring 50 which normally tends to turn the said cutting member 45 together with its cutting edge to the positionillustrated in Fig. 7. The said cutting member is adapted to be depressed by means of a cam 51 carried by a shaft 52 engaging an anti-friction roller 53 carried by the said member 45, all as is clearly shown in the said figure. The said cam 51 is provided with a shoulder 54 adapted to engage a oorresponding shoulder 55 formed on one face of the slide member 22, whereby the said cam may be rotated about the said' shaft 52 by the engagement of the said s'h0ulders'54 and 55 as the member 22 descends.

The vertically reciprocating cutter member 45 audits associated parts are carried upon a slidable block 56 which is movable laterally in a slot 57 provided in the wall 21, and the said'slidable plate 56 may be securely clamped in any desired position by means of a clamping screw 58 (see'Figs. 6 and 8). The said clamping screw 58 passes through the-sliding plate 59 positioned on the opposite side of the wall 21, which plate is provided with an an'gularly dispose extension 60 through-which passes one-end of an adjusting screw 61 threaded in a stationary portion 62 of the framework. The said screw 61 is provided on one end with an enlarged head 63 and upon its other end with a handle 64, whereby it may be rotated to adjust the position of the plate 56 and cutter member 45 whereby the length of the Wire which is severed by the said cutter member may be varied at will to provide staples having legs of differentlengths.

The wire feeding mechanism, as is best illustrated in'Figs. 3 and 11, comprises an oscillating arm or lever 65 which isloosely mounted upon a stationary stud 66 carried by the framework of the machine. The said lever 65 has a resilient connection with the said stud 66 by means of a helical torsion spring67 mounted within a counter-bore 68 with which the, said lever 65 is providd. which spring has 'one of its ends 69 rigidly connected to the said arm 65 and its other end 70 similarly connected to the head 71 of the stud 66.

On the .upper end of the said lever 65 there is provided an anti-friction roller 72 which is adapted to be engaged by the cam surface 19 with which the cam member 17 is provided, as above described. The opposite end of the said lever 65 carries a pivoted toothed wheel the teeth of which are adapted to co-act witha lug or extension 74 rigid with the said lower end of the arm 65, whereby wire 75 may be gripped between'said members and fed toward the right, as seen in Fig. 3, when the'cam surface 19 engages the roller 72 of the arm 65 to move the same against the force exerted by the spring 67. The teeth of the said wheel 73 are preferably of theratchet form shown, and when the said arm 65 is permitted to return to its initial position illustrated in Fig. 3 by, the cam surface 19, the said wheel 73 will revolve along the wire without drawing the same back toward the left, as seen in the said figure. Any suitable form of tension means 76 may be provided for holding the wire taut as it 'is drawn from the reel or other supply 77, and said vtension means may be pro-. vided with a handle 7 8 whereby it may be manually released if for any reason the wire should be gripped by the said tension means to such an extent-asto prevent its being fed to the staple forming mechanism and thus prevent the breaking of the said wire.

The operation of the improved wire stitching machine will be clear from the foregoing, but it may be briefly summarized as follows: The overlapping ortions of the card-board box or other artic e which it is desired to secure together having been placed in position upon the upper surface of the supporting table 16 and acoil or ber "33.

reel of wire, preferably flat, having been placed in position, as illustrated in Figs. 1 and 2, the said wire is threaded through the tension device 76 and between theroller 73 and the lug 74 of the wire feeding arm 65, through the slot in the wire holding shear member 47, and through the slot 37 in the end of the spring pressed pin mem- One of the controlling pedals 12 or 13 is then depressed, thereby engaging the clutch 10, whereby power from the motor 9 will be transmitted from its shaft 8 through the pulley 7, belt 6, pulley 5 and clutch 10 t0 the main power shaft 4, thereby rotating the cam member 17 one complete revolution. 7

ts above'stated the parts are so designed and assembled that the rotation of the cam member 17 will cause both the slide members 22' and 26 to descend simultaneously, but the member 22 will be operated at a rate of speed in excess of that imparted to the member 26. The downward movement of the said slide 22 will, through the contacting shoulders 54 and 55, cause the cam' 51 to move the cutter carrying member .45 downwardly, thereby causing the shears 46 and 47 to sever the wire at a predetermined oint. The lower bifurcated end39 of the s ide member 22 will straddle the wire holding pin 33, and the side portions 79 of said member 22 will engage and bend the .end portions of the wire downwardly a ainst the sides of the dog '30, thereby orming the legs of the V staple, which occupy the lower portions of the grooves 80 with which the side walls of the channel 25 is provided. The cam groove.

18 here stops further downward movement of the slide 22, but the link 27 causes further movement of the slide 26, which brings its edge 38 into contact with the beveled or cam surface 36 of the pin 33, thereby forcing the latter to the right, asseen in Fig. 4. The legs of the formed staple being 'held in the vertical grooves 80, lateral movement thereof is prevented, and the movementof the pin 33 just described disengages the slot 37 of the )in 33 from the head of the staple and t e staple is free to move downwardly.

The said head now rests upon the upper curved surface of the dog 30, and continued downward-movement of the slide 26 causes its lower surface to contact with the, upper face of the said head, whereupon the mem= her 26, dog 30, andthe staple will move downwardly in unison, the legs of the staple sliding in the supporting grooves 80 of the channel 25. The dog 30 engages and supports the"inner sides of the staple legs, preventing them from bending inwardlv during the initial penetration of the cardlioa'rd 42 thereby, but upon the engagement said card-board, a cam action is had, which causes the said dog to oscillate about its pivot to the left, as seen in Fig. 4, against the action of its spring 31, thereby permitting the member 26 to drive the staple home.

The lowermost portions will pass entirely through the card-board 42, and will engage the grooves or depressions 41 in the anvil 40, which will cause them first to be turned inwardly, and then upwardly, to clinch the same.

The staple forming and clinching operation having been completed, further rotation of the cam member 17 will now raise both the slide members 22 and 26 to their uppermost positions and during this said upward movement the cam surface 19 of the member 17 will engage the roller 72 carried by the wire feeding arm and force it to the left, as seen in Fig. 3, thereby causing the lower portion of said arm to move toward the right, as seen in the said figure, whereby its gripping members 73 and 74 are caused to feed another portion of the said wire75 into position beneath the staple formin mechanism. Of course, as the slide mem ers 22 and-26 move upwardly the springs 31 and 35 return the dog 30 and' the pin 33, respectively, to their initial positions, illustrated in Fig. 4. As soon as the feeding of the new portion of the wire to the staple forming mechanism: has been completed the cam surface 19 permits the wire feeding arm65 to return to its initial position, shown in Fig. 3, under 1 a the influence of its controlling torsion spring 67,-as will be readilyapparent. The

box material is then moved forward to the position desiredfor the next staple, wherea open end of the leg 16. It will be noted that the movements of the container after it is once positioned about the leg 16v are all in one direction, and that the leg is rigid, so thatit is necessary to stop the machine, or swing the leg to discharge the container, thereby facilitating the operation of the device and eliminating undue loss of time.

The clutch member 10 may be of any desired construction but it is preferred to make it so that it will automatically disengage tlie power from the shaft 4 upon the completion of one full revolution of the said shaft and its cam member 17.

It will thus be seen that this invention provides an entirely automatic mechanism, capable of handling. comparatively large card-board containers, which mechanism is to penetrate the said material, and its legs to be clinched over, thereby rigidly securing the overlapping portions of the said material together. Upon the completion of these operations the parts return to their initial positions, iwhleneupon another portion of. Wire is fed to the staple forming mechanism.

andthe cycle of operation repeated.

It is obvious that those skilled in the art may vary the details ofi construction as well as the arrangement of parts without departing from the spirit of the invention, and therefore it is not wished to be limited to the above disclosure except as may be required by the claims.

What is claimed is:

including a reciprocating slide provided with a shoulder; means for feeding a strip of material to said forming means; means for sev ering a portion of said strip from which a staple may be formed, in operative relation to said forming means; and a cam provided with a shoulder adapted to be engaged by the shoulder of sa1d formmg means, for actuating said severing means.

.2. An automatic stapling machine for card board containers and the like comprising a standard having a projecting arm; an elongated U-shaped member extending transversely of said arm, having one of its legs rigidly connected to said arm and its other leg extending approximately horizontally beneath said first leg, said last mentioned leg being adapted to support the edges of the container members throughout substantially their entire length; the end of said last mentioned leg being free to permit the containers to be slid thereover; and means carried by said projecting arm for drivin staples through said container members w ile supported on said leg.

3. An automatic stapling machine for large card board containers and the like comprising a standard having a projecting arm; an elongated U-shaped member. ex tendin transversely of said arm, havin one of 1ts legs rigidly connected thereto, an its other leg extending approximately horizontally beneath and or a considerable disizance beyond said arm, the free end of said e talners may be freely slid thereover, said last mentioned leg serving to support the \edges of the container members throughout 65 substantially their entire length; an anvil 1. In an apparatus of the class described the combination of a staple forming means being unobstructed whereby said con-' carried by said lower leg; and staple forming and driving means carried by said projecting arm. I

4:. An automatic staple forming mechanism comprising a support having a' guideway; staple forming members reciprocally mounted in said guideway; a staple holding member comprising a reciprocally mounted headed pin extending transversely of said guideway, provided with a slot for holding the staple while it is being formed, the head of said pin having a circumferential groove; and means comprising a pivotally mounted leaf spring engaging the groove in the head of said pin for normally maintaining it in position, and adapted to ermit its ready removal without the use 0 tools.

5. In an automatic box stapling machine comprising a standard having a projecting arm; a U-shaped arm having one of its leg portions connected to said projecting arm and its other leg portion extending approximately horizontally below the plane of the first mentioned leg and having an anvil thereon; and means carried by the projecting arm for driving staples into engagement with the anvil, said U-shaped arm being arranged to receive the opposed edges of the box blanks through its loop in opposite lateral directions and to then support said edges in overlapped position as they are moved longitudinally of said arm to said stapling mechanism and then by movement in the same direction to discharge position.

6. An automatic box stapling machine "comprising a standard having a horizontal forwardly projecting arm; a U-shaped arm having one of its leg portions rigidly con.- nected at one end at substantially right angles to said projecting arm and its other legvportion extending approximately horizontally below the plane of the first mentioned leg and beneath the projecting arm and having an anvil thereon; and staple forming anddriving mechanism carried by the projecting arm for forcing staples into enga ement with said anvil, said U-shaped arm being arranged to receive the opposed edges of the box blanks through its loop in opposite lateral directions and to then support said edges in overlapped position as they are moved longitudinally of said arm to said stapling mechanism and then by movement 1n the. same direction to discharge position.

ci'fiAn automatic box stapling machine comprising a standard having a projecting arm; a U-shaped arm having one of its leg portions connected at substantially right angles to said pro'ecting arm and its other leg portion exten ingapproximately hori zontally below theplane of the first mentioned leg and beneath the plane of the projecting arm and a suitable distance beyond Ill) nism carried by the projecting arm for forming and forcing staples into engagement with the anvil; said U-shaped arm being arranged to receive the opposed edges of the box blanks through its loop to one side of said projecting arm and to then support said edges in. overlapped position as 10 they are moved longitudinally of said armto said stapling mechanism and thence by movement in the same direction to discharge position.

In testimony ture.

JOSEPH N. PAGLIARUL.

whereof, I afiix my signa- 15

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