US611252A

US611252A - Paper-box machine

Info

Publication number: US611252A
Authority: US
Publication date: 1898-09-27
Anticipated expiration: 1915-09-27

Description

Patented Sept. 27,- I898.

c. mhljnLcnma. PAPER Bhx mxcmnz.

(Appiication fllad June 30, 1896.)

5 shm shm I.

(No Model.)

WITNESSES:

Mam m5;

INVENTOR:

4 By his A/mmeys,

MW V

m: NORRIS PETERS cc. wHoYo-Lrmo" WASMNGTON. u. c.

No. 6l|,252. Patented Sept. 27, I898. C. M. HOLCOMB.

PAPER BOX MACHINE.

(Application filed June 30, 1896.) (No Model.) 5 Shaets-Sheet 2.

INVENTOR: WITNESSES M 2/6. $062 I 4/31 1% M By his Aftomeys,

14W M014 %a%zzw 6 TNE Nonms PU'ERS ca. FHOTO-LITHQ. WASHINGTON. n c.

Patented Sept. 27, I898.

C. M. HOLCOMB.

PAPER BOX MACHINE.

(Amalicatzicm filed June 30, 1896,)

5 Sheets-Sheet 3.

(No Model.)

WITNESSES:

INVENTOR:

-& figm By his Altomeys,

"m: nonms PEYEHS co, PHDYO-UYNO" wAsnmorou, o. 1:.

Patented Sept. 27, I898.

c. M. "H OLCUMB.

PAPER BOX MACHlNE.

N0. 6ll,252.

(Application filed June 30, 1896.)

5 Sheets-Sheet 4.

No Model.)

INVENTOR:

By his Altorzieys, ficmp-FQD WITNESSES: 12rd 14...... M-

No. 611,252. Patented Sept. 27, I898. c. M. HOLCOMB.

PAPER BOX MACHINE.

(Application filed June 30, 1896.)

(No Model.) 5 Sheets-Sheet 5.

WITNESSES; K INVENTOR:

'fmz mm -4 525? By his A/zomeys,

THE uonms PETERS c0, PHornLrMQ, WASNINUTON, o. a

Ni'rED STATES PATENT Enron.

CHARLES M. HOLOOMB, OF NEW YORK, N. Y., ASSIGNOR TO ALFRED BIRNIE, OF SPRINGFIELD, MASSACHUSETTS.

PAPER-BOX MACHINE.

SPECIFICATION formingpart of Letters Patent No. 61 1,252, dated September 27, 1898.

Application filed June 30, 1896. Serial No. 597,516. [No model.)

To all whom it may concern:

Be it known that 1, CHARLES M. HoLooMB, a citizen of the United States, residing in New York, (Brooklyn,) in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Paper-Box and other Machines, of which the following is a specification.

This invention relates to machines such as those used for making paper boxes and other articles from flat blanks, and aims to provide certain improvements in machines for this and analogous purposes. In machines of this character the blank operated upon is usually a strawboard or other blank having sides and ends scored or creased at their junction with the center or body at the point of bending the side or end to a position at right angles 'to the body, the blank usually having a cor- 2o ner-flap projecting from the side, which is folded in at right angles and glued to the inner face of the end in forming the box, the

whole being cut from a rectangular sheet,

with notches at the corners to give the de- 2 5 sired formation, and being scored or creased,

if required, before being supplied to the boxmachine, to which the blanks are supplied in piles. The machines have a feeding-table,

receiving a pile of blanks, a feeder passing 3o successive blanks to the forming-point, a

plunger pressing the fiat blank down through a folding-space, gumming mechanism, and driving mechanism.

My invention provides certain features of improvement in the construction, arrangement, and operation of machines of this general character, which will be hereinafter fully set forth, with reference to the accompanying drawings, in which Figure 1 is a plan view of a box-making machine embodying the preferred form of my present invention, the view being partly in horizontal section on the line 1 1 in Figs. 2 and 3, this section being below the gummer 5 and substantially'flush with the feed-table.

Fig. 2 is a front elevation thereof, the lefthand side of the figure being in vertical section on the line 2 2 in Figs. 1 and 3. 'Fig. 3 is an end elevation thereof, the left-hand side of the figure being in vertical section on the lines 3 3 in Figs. 1 and 2. Fig. 4. is an ele vation of the outer side of the roller-arm of the presser-toggle, looking in the direction of the arrow in Fig. 2. Figs. 5 to S, inclusive, are fragmentary detail views, on a larger scale, showing the operation of the flapfolder, Fig. 5 being a side elevation thereof before acting, Fig. 6 a like view during action, Fig. 7 a rear elevation in the position shown in Fig. 6, and Fig. 8 a plan view of Fig. 7. Fig. 9 is a fragmentary view of the gummer in the active position. Fig. 10 is an enlarged fragmentary vertical section of the back gage, showing the yielding guard. Fig. 11 is an enlarged fragmentary horizontal section of the end-presser, showing the puller-off; and Fig. 12 is a plan View of one of the blanks, showing the gum-points and folding lines or creases.

Referring to the drawings, let A indicate the feed-table at front of the machine; B, the blank; 0, a rear gage therefor; D, the feed-slide; E, the forming-pocket; F, the plunger; G,the gummer; H,the end-pressers;

I, the flap-folders; J, the puller-off, and K the delivery-board.

In operation the feed removes the undermost blank from the pile, the others being retained by the guide 0, and pushes the blank to its proper position over the pocket E, the shape of which substantially corresponds internally to the external shape of the box to be formed. The blank then rests with its sides on the top edges of the pocket, its ends on the end edges thereof and immediately beneath the gummers, and its body beneath the plunger F, the external shape of which corresponds to the desired internal shape of the box. The plunger then descends on the body, forcing it into the pocket, thus bending its sides and ends at the edges of the pocket, so that the sides and ends turn up between the walls of the pocket and plunger. During or just prior to this bending the gummers Gapply glue to the inner faces of the ends of the 5 blank at the points a thereof, this being the point which contacts with the flap b of the adjacent sides 0 when the sides have been bent and the flaps folded in before the ends (I are bent. The flaps are folded during the bending of the sides by the folders I, so that they will be in position in time to receive the gummed ends. Then the box is pushed within the pocket until properly opposite the pressers II, whereupon the plunger is arrested and the pressers move toward it, compressing the box ends against the flaps with sufiicient force to secure perfect adhesion of the glued portions, whereupon the pressers release, the plunger rises, and the formed box is pulled ofi? the plunger and out of the pocket by the puller J, the box falling onto the chute K and escaping. The parts then return to their positions for a successive operation.

I will now describe in detail the preferred form of my improvements as illustrated in the machine shown.

The machine comprises a framework consisting of side frames 6 and a cross-brace f, with bottom corner-stays g. This frame may be of any suitable construction which will suffice to hold and carry the parts.

The table Ais a suitable flat table mounted at the top front side of the machine, of suflicient width and depth to receive any sizes of blanks B for which the machine is adapted, and having a track or slot h on and through which the feed-slide D reciprocates. The inner end of the table is near the pocket E, sufficient distance being left to provide for working room and the space between the table and the pocket being bridged by one or more extension-pieces t' to prevent sagging of the blank. At the sides of the table adjustable side gages j are mounted which engage the ends of the blanks and hold them in proper position for entering the forming mechanism. At the rear of the table a fixed. gage C is placed, which gage has beneath it a feedingslot 71:, between its lower edge and the top of the table, which slot is long enough and high enough to permit the passage of any one blank.

. Near its front edge the table has adjustable gages Z, which are adjusted against the outer edge of the pile of blanks and prevent out- Ward displacement of the lower ones. The front gage Z holds the bottom blank in position to be caught by the slide D, and the inner gage prevents the other blanks from moving in with the bottom one. A weight m may be laid on the blanks to hold them down.

The feed-slide D consists of one or more adjustable plates 41 on a reciprocating carrier 0, which plates pass under the pile and push the undermost blank inward past the gage C until it is properly located under the plunger. To prevent the blank from slipping above the slide after passing the gage, I provide inwardly-extending top holders 1) on the gage, which hold down the blank until its edge is sufficientlyinward. To prevent injury of the feed-slide in case it shall accidentally pass under instead of catching the lowermost blank or should slip therefrom when the.

blank is part way through the gage, I make the front gage O upwardly yielding, preferably by forming it with a yielding portion 0, which is above the slide and normally rests at the proper height to pass one blank; but

should the slide slip under the blank after the latter is partly fed the portion 0 will rise and permit the passage of the slide beneath it and the partly-fed blank under it without injury. The gageis shown as havinga socket q near each end of its portion 0, into which socket studs r from this portion rise, which studs are surrounded by spiral springs s, forcing them down, and carry studs 25, Working in slots to, by which they are prevented from escaping from the sockets, and the downward movement of the yielding guard C is limited, as shown in Fig. 10.

The feed is operated by a feed-cam L, fixed on the driven shaft M of the machine and connected by a link 1;, having a roller w bearing on the cam and a fork w embracing the shaft with the short arm of a lever g, which is fulcrumed on a shaft .2 and is coupled at its upper end to the slide 0, while it is retracted by a spring z. The cam L has a rise a, during the action of which against the roller 10 the feed moves inwardly. Above this rise the cam has an outer rest I), on which the roller bears while the feed rests at the inner position. At the end of the outer rest the cam gradually recedes to the innerrest c, the feed returning to its initial position as the roller w travels down the incline and standing outwardly of the blanks while the roller is 011 the inner rest.

The pocket E may be any suitable formingl the end pieces 0 are flush with the top of the table A and constitute the surface on which the blank rests when itis ready to be operated 1 upon by the forming mechanism, these plates and pieces being permanently adjusted to suit the box to be made and then being fixed side and end folders therefor.

bottom of the box.

The plunger F has outer walls passing within the box and a bottom face bearing on the In its inactive position it is held above thepocket farenough to permit the blank to pass thereover, and then it descends into and part way through the pocket, bending the sides and ends of the blanks at the corners of the outer walls between these walls and the plates N and end lpieces 0.

It rests in its downward position until the box ends are pressed, and then it rises to and rests at the upper position. The

shaft M for guiding purposes.

have each a roller i, bearing on plungercams P, respectively, the cross-heads having lower slotted portions j, which embrace the The plungercams P are fixed to the shaft M, have outer concentric rests It, which when engaged by the rollers hold the plunger at the upper position, inclines Z, down which the rollers run to permit the plunger to fall, inner rests m, on which the rollers ride while the plunger is down and stationary, and rises n for lifting the plunger.

The ends of the blank are gummed during the first bending. The gummers Gare preferably rollers of a width and location to correspond with the gumming desired, and are fed from a gum-box Q, having driven rollers with which the gum-rollers contact during their inactive periods to be supplied with gum, which rollers are driven by sprocketchains 19, and a pulley q, belt 'r', and crossshaft 3 for each gum-box. The gummers are carried by a frame R, pivoted to swing on ahorizontal axis, having a portion 25' resting on the plunger F when the latter is elevated, and thereby holding the gummers above the blanks as the latter are fed to position, and having stops a, striking the piece 0 and preventing contact of the gummers therewith, these stopsand frames being beyond the sides of the blank, so that neither interferes with the latter. As the plunger begins its descent the gummers fall with it until they rest on the ends of the blank, which they reach before it is reached by the plunger. When the plunger begins to depress the blank, the ends of the latter as they are bent past the pieces 0 are drawn under the rollers, taking the gumtherefrom. As they leave the gummers the stops to thereof strike the pieces 0 and arrest further downward movement of the gummers, which latter rest in this position until their frames are again lifted with the plunger F.

The flap-folders I turn in the flaps before the ends are completely bent. They consist of a finger S for each flap and an operator T in the path of the plunger, moved thereby when the latter is moving into the pocket and then moving the finger inwardly in time to bring it between the plunger-wall and the gummed end, as best seen in Figs. 5 to 8. The flap-folders are preferably mounted on the side plates N, having a spindle o fixed to the toe T at one side of the plate, finding bearings in the plate, and having an eccentric pin at its other end, working in aslot 0a in the finger S, and thereby throwing the finger against the flap b as the toe is depressed by the falling plunger. restores the parts when the plunger has risen. The point of the finger S is properlyarranged to fold the flap, and the lower end of the finger is pivoted at z to the side of the plate N.

When a box has been moved to the proper position in the pocket,'its ends are pressed by the pressers II to insure permanent adhesion A spring 3 of the gummed faces. These pressers are horizontallysliding plates having vertical pressing-faces which act against the ends of the box. by togglejoints U, controlled by cams V, mounted on the shaft M, and consisting each of a link or, engaging the cam and f ulcrumed to a cross part I), supported by the frame,and a link 0', fulcrumed to the link a and adjustably connected to a cross-head 01, carried on a slide 6, forming part of the presser H. The link a has an adjustable arm carrying a roller f and adjusted relatively to the link by a screw 9, so that the position of the link can be regulated. The roller bears on the inner face of the cam V, which cam has a long rest h", on which the roller rides when the pressers are retracted, and a sharp rise 2', which lifts the toggle to force the pressers against the box. Each toggle is retracted by a springj.

The force exerted by the pressers is usually very great. To resist this force and carry the slides, I prefer to provide a rectangular frame W, which consists of two cylindrical bars extending from side to side of the machine (lettered k") and cross-heads b, clamped to these bars, and held in position on the frame of the machine, as by fastenings Z, to which crossheads the links a are fulcrumed and on which bars the slides e of the pressers slide, so that all the force exerted by the pressers is taken up in the frame W without straining the frame of the machine. The end pieces 0 are preferably adj ustably clamped on the bars k.

The puller-off J consists of a verticallysliding hook fitting in an undercut groove m in the face of the presser H, having an elastic hook end n", yielding to permit the box to pass down and then snapping in against the plunger above the upper edgeof the box. At its lower end the hook is adjustably connected with the slide X, having a roller 0 riding on the cam Y and having a fork p embracing the shaft M for a bearing and a weight g beneath. The slide X and cam Y are duplicated for each puller-off and are connected by a rod 1", which in turn is connected to each hook by links 3", the upper ends of which can be connected to one of several holes in the lower ends of the hooks. The cams Y have outer rests on which the roller rides while the hooks are up, a fall a", which permits downward movement of the pullers-off, and a rise o for again lifting these parts. The slides X have downward projections w, engaging a longitudinal bar 00 to prevent their tilting.

The various cams are timed and disposed so that the feed shall be completed before the plunger falls, and the pressers shall be retracted and the pullers-off elevated before the formed box is pressed in position for pressing. The presser-cam will act while the plunger 'rests in its lower position, and as soon as the pressers are released the plunger will rise.

The pressers are moved in and out During or immediately after the rise of the plunger the pullers-off will act.

The center of thrust of the pressers is substantially opposite the position of the box being pressed and is in line with the longitudt nal axis of the frame W, so that there will be no torsional strains.

It will be seen that my invention provides a simple and effective machine for making boxes and like purposes and one which can be readily and advantageously availed of, and it will be understood that the invention is not limited to the particular details of construction, arrangement, and operation set forth and shown as constituting the preferred form of the invention, but that it can be adapted according to such modifications as circumstances or the judgment of those skilled in the art may dictate without departing from the spirit of the invention.

It will be seen that the sides and ends of the pocket E when once adjusted to suit the blank to be operated upon are rigidly held against movement and constitute rigid folders forfolding the sides and ends of the blank upwardly against the plunger as the latter presses the body of the blank through the matrix or pocket. For convenience of adj ustment the sides or plates N are arranged nearly at the ends of the sides in the construction shown, so that they can be shifted toward or from each other without interference. The top corners of the plates N and pieces 0 may be slightly rounded, as shown, to render more gradual the operation of bending up the edges of the blank. In this action the sides and ends of the matrix constitute, essentially, fixed folders surrounding the latter, beneath which the movable pressers act, preferably through the end pieces. Adjustment of the end pieces along the bars 7t" lengthens or shortens the pocket, whileadj ustment of the side plates longitudinally of the end pieces and laterally of the bars affects the. width of the pocket.

Much advantage results from using a movable flap-folder in conjunction with a rigid side-folder, as the swinging flap-folder I, carried on the rigid plate N. The rigid end-folders Oassure uniformity of action on all the blanks, and any expansive. tendency during their operation is taken up by the connection between them, (thebars Yd.) These end-folders 0 may thus be stationary during the operation instead of movable, as would be the case were the pressers. relied on for end-folding as well as pressing. I

The improved toggle connection secures easy operation of the pressers and requires very little force to swing the toggle. This is largely due to the extension of one of the links into direct connection with the cam, so that the latter operates directly on the long arm of the levercomprising the outer toggle-link at".

The adjustability of the feed D permits ready adaptation to feeding blanks of different sizes, the adjustment being effected by shifting the platen on the slide 0. The top and bottom guides 19 and t afiord valuable assistance in preventing the blanks escaping the feed and insuring their proper position as they pass over the pocket.

What I claim is-- 1. In box and other machines, a feed-table, and box-forming mechanism, in combination with a gage permitting the feed of the lowermost of a pile of blanks, and having a vertically-movable portion, and a feed opposite the movable portion of said gage, moving the lowermost blank past said gage to said mechanism, a spring pressing said movable portion toward its working position, and a stop limiting its downward movement.

2. In box and other machines, a feed-table for holding a blank, a feed for moving the latter to a box-forming mechanism, and such mechanism, in combination with a gage, past which the blank is fed, having a yielding portion 0, freely movable laterally of the direction of feed for the purpose set forth, a spring pressing such portion toward the blank, and a stop determining its position.

In box and other machines, a pocket for receiving the blank consisting of separate side plates N and adjustable end pieces 0, the latter rigid and extending outwardly past said plates, a common support for both the plates and said pieces, a plunger for pressing the blank into such pocket, and pressers movable against the blank beneath said end pieces for pressing its gum med portions against said plunger.

4. In box and other machines, a formingpocket, and a plunger for pressing a blank therein, in combination with gummers for the blank normally withheld therefrom by the plunger and moving into contact with the blank for gumming it during the movement of the plunger toward it.

5. In box and other machinery, a pocket for receiving a blank, and a plunger pressing the blank into said pocket, in combination with a flap-folder at the corners of said pocket, moved by the plunger against the flap of the blank and folding it in between the plunger and the end of the blank as the plunger descends, and means in the path of the i plunger and below the blank, operated bythe "plunger and operating the folder, consisting of a toe projecting into the pocket.

6. In box and other machines, a pocket, and a plunger for pressing a blank therein, in combination with pressers for pressing the blank against the plunger, and'vertically-reciprocating pullers-off carried by said pressers for removing the box blank from the plungers.

7. In box and other machines, a gummer G, vertically movable and lifted above the surface to be gummed when inactive and falling by gravity thereon when active, means moving said gummer vertically, and a stop It sustaining the gummer against contact with other than the surface to be gummed.

8. In box and other machines, a movable plunger, in combination with a pivotal frame R, and a glimmer G carried thereby and movable up and down with the plunger, and means lifting and releasing'said frame for its inactive and active periods, operating synchronously with the movement of said plunger.

9. In box and other machines, a movable plunger, in combination with a flap-folder I, comprising a finger S movable toward and from the flap, a box-forming pocket, and a projecting part T extending into said pocket, moving the finger, in the path of, underneath, and moved by, the plunger.

10. In box and other machines, a pocket E, having side plates N, pieces 0, and pressers H, and bars k adj ustably carrying said parts.

11. In box and other machines, the table A, gage 0, feed D, pocket E, plunger F, a single shaft M operating said feed and plunger, and gumming and flap-folding mechanism, and means operating said gum min g and flap-folding mechanism from said plunger as it moves,

I substantially as and for the purpose set forth.

12. In box and other machines, the combination with the box-forming mechanism, and a presser for pressing the box, of a toggle operating said presser, consisting of two links, the one connected to the latter, and the other connected to the first and having a fixed laterally-projecting cam portion, an adjustable roller carried thereby, and a cam operating the toggle and engaging said roller carried by the latter link, and reacting thereagainst in a direction substantially approximating the direction of thrust of the toggle.

13. In box and other machines, the combination with the box-forming mechanism, of a pocket consisting of two end-folders and four rigid and adjustable side-folders for the blank, said side-folders each having a movable flapfolder therefor, carried by, and adjusted with the adjustment of, said side-folder.

14. In box and other machines, a box-forming mechanism, in combination with rigid arched end-folders for the box, having hollow under sides, bars carrying said folders and movable pressers below and within the hollows of said end-folders, and having slides CHARLES M. HOLCOMB.

Witnesses:

NAPOLEON SAVARIA, WILLIAM H. (Arms.