US 919905 A
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Description (OCR text may contain errors)
L. C. MALTBY.
PAPER BOX MACHINE.
APPLICATION PILBD 11130.15, 1903.
2 SHBBTS-SHEET 1.
Ck MMM mau/:2%
Patented A111127; 1909.
L. C'. MALTBY.
PAPE@ BOX MACHINE. APPLICATION FILED 13110.15, 190s.
4 919 ,905. Patented Apr. 27, 1909.
23 l 2 SHEETS-SHEET 2. 17
| .I I l Witnesses urirrnn sfrnrns PATENT oniricae LEWIS C. MALTBY, 0F.\-'AS HINGTON, DISTRICT 0F COLUMBIA.
' Specification of Letters Patent.
y Patented April 27, 1909.
ApplicationiledjDecember 15, 1903. Serial No. 185,313.
have invented certain new and useful Improvernents in Paper-Box Machines, of which the following is a s eciiication.
My invention re ates to apparatus for the manufacture of boxes of paper or other flexible material, and embodies a die and counter die, the latter supported in a fixed position and adapted to receive the former and to turn down upon the body of a box supported thereby, the edge of a disk, as fully setfo'rth hereinafter and as illustrated in the vaccompanying drawings, in which- Figure lis a vertical elevation of an apparatus embodyin my invention; Fig. 2,. a vertical sectionafelevation"drawn .to an enlarged scale, showing the main parts of the apparatus. v h' Before referring to the details of the mechanism, I will describe the operations to be performed in connection with' the cy drical paperbody A, .made in any' suitab e man- .ner, and a sheet of paper C, from which one '.above the die B end of the box. is to'be made. The said cylindrical bodyA has deposited upon it'l near one end and: on the outside, a layer 1 of cement, preferably lue, and the body A is mounted upon a die d3 preferably heated. The sheet of paper C is carried to a position and between an annular movable holder F having a cutter projection 2 and an annular stationary cutter E, and by the upward movement of the cutter 2, a disk is"sheared from the sheet C of a diameter exceeding that of the bodyA,
and the latter with the die B is thencarried `uFpward through an opening 3 in the holder throu h a' corresponding opening in a counter- 'e K, which openingis surrounded by a crimping 'ring having a beveled lower edge, and 1n said opening is a sliding block J l l and the V disk is' turned: outward movable verticallyfin a -recess in the die K, so .that as the die-'B meets the disk, the latter is lock'J and as'it is carried. upward into the-recess in the die K, the edge of the and compressed onto the outside of the body A With-a ressure that, attens all the folds forme l by bending the disk, producing 'a comparatively smooth flange, which under the mu- 55 ence of theheat and pressure'is cemented by the cement to the body The die B then pressed between the top ofthe die B- to draw yout and form a flange at right angles' to the face of the disk, I have found from numerous tests that this cannot be practicably effected 'in ilanging disks of paper. This results from Vthe 4fact that 'the paper almost invariably `breaks at the bending point; in fact it cannot be drawn like metal. To remedy this defect I provide means whereby topermit a limited outward flow or feed of the paper in the act of bending and this has proved to be completely successful even with cheap short-fiber papers or boards. This is effected by forming an annular rib 4 upon the lower face of' the block J and a corresponding annular recess 5 in the upper face of the die B and ing the block J so that it can yield slightly upward as the ange `is turned down. The springs 16 which support the block J to secure the described result must exert only suflicient pressure to indent the sheet as the dies are brought to ether, butto yield when the edge is turned own, allowing the stock that was taken up in the indentation to feed out across the edge of the die B. The presence of the body of the box on the die as the ange is turned down also tends to prevent tearing or fracture as the sheet is drawn over the end of the body which is soft and yielding.
The arts above described may be constructed suitable. manner, but as shown they are mounted upon anupright frame or casing L in which slides'vertically a lcarrier Msuitably guided Aand supported, with a: roller 6, which bears'upon the periphery of a cam N mounted upon a shaft 7 turning in bearings on the frame'and driven in. anyk suitable manner.l Across a slot or recess in the carrier M extends a shaft 8 with which swin s a brackety or holder P supporting thedie l and at the end of the shaft 8 is an'arm 9 and arrangedto operate in any' supportcarrying a crank pin 10 from which a conf-1.
necting rod 12 extends downward andis'- the connecting rod 12 downwardandswing partof the frame and is secured therein y al set screw 45, and the cutter holder is pivoted by a pivot pin 13 to a bracket 14 extending from the die K the axis of the pivot pin bei on the same plane as the lower face of the cutter E, so that the cutter carried by the holder F will effect a p'ro ressive shearing of the sheet and secure a cPeaner cut with the exertion of less power than if it was` maintained in a horizontal position and then carriedupward.
Th block J is hollow and has a'central. tubular stem 114 extending through a block 15 secured in the die K and this block 15 -is recessed to receive s rings 16 which tend to carry the block J. (lbwnward to an extent limited by an adjustable collar -or nut 17 turning upon the threaded end of Ithe stem 114. The block 15 as shown is threaded externally to fit a threaded socket of the block K and may be turned to raise or lower it in the socket to vary the positionlof the parts which it carries and to vary 'the tension ol the springs 16. j
The upward movement of the carrier M,
holder and die B isefected' by the rotation of the cam N, aprojection upon which lifts these arts and as the'projectlon asses from the ro er 6, said parts are carrie downward by the action of the weight R through its connections with the crank arm 9. When, however, the die B has beeniwholly removed from below the cutters, it is desirable to -Y swing outward the holder P and the lower die, that the box may beremoved; and this swinging movement ofthe parts is secured y by providing the connecting rod 12 with an adjustable stop shown as a nut 18 which, byl contact with a shoulder 19 on the frame, causes the arrest of the connecting rod 12, while the descent of the carrier M and shaft 8 causes the latter to' be turned to swing the holder outward;` After the box is removed, which may be done by hand, another box body A vis placed u onthe lower die and as the cam N rotates t e carrier M and its shaft 8 are lifted, the weight tending to hold the rod 12 down and insuring the inward swing of the holder P until the lower die is in a vertical position, when a lug 30 on the holder P will make contact with the vertical face 31l ofthe carrier, and the carrier, holder and die will move upward as before.
Thev cutter holder F may be moved in any Isuitable manner to cut the disk from the sheet before the die B moves fully through the opening 3. As shown, a'rod 32 slides in 'al guide 33'secured to the frame and bears with its up er end a ainst the lower side of the holder A rol er 44 at thelower end of the rod makes contact with the cam N which lifts the rod before it acts to lift the lower die. A spring 34 serves to carry down the holder F to the extent permitted bythe descent of the rod.
Any suitable means, electrical or otherwise, may be employed for heating the parts. As shown, the hollow die B has within it a coil pipe 119 communicating with an inlet port 20 and outlet port 21 in the holder P, with which ports may be connected flexible ipesfor the admission and discharge of the lieated fluid, as steam or hot water. The block J is supplied with a like heated fluid througha short pipe 22 passing through a plug at'the top of the stem 114 and a dis charge pipe 23 extends nearly vto the bottom of the 'chamber in the block, so that in the use of steam, if there should be any water in said chamber, it will lowreadily up 'in the pi e 23 and be discharged'f. I
il have not shown any means for feeding .the sheet lof paper in successive steps after the different cuts, as any suitable feeding devicesmaybe'employed, or the sheet may be fed by hand.v
While l prefer to hinge the lower cutting ring so as to get a progressive shearing effect as described, it may be carried up and down while its horizontal/,position is maintained. lt will'further be seen that while l have illustrated dies adapted to operate in connection with cylindrical box bodies, the parts will, of course, be shaped to correspond to the shape of the bodies of the boxes to be made. It will further be seen that although I prefer to arrang'e the cutters so as to shear or cut the 1 disks 1n/proper position to be met by the upward movement of the box body, the said disks may be otherwise cut and presented.
Without limiting myself to the precise construction and arrangement of parts described, 1 claim as my invention:
1. In amachine for Hanging and applying bottoms tothe bodies of paper boxes, the
combination of adieadapted to be inclosedby the hollow box body, a counterdie, recessed to receive the end of the body die, its box body, and the flange of the bottom disk, means for supporting the disk between the dies, a recess in the end of the body die adjacent to the sides thereof, a movable block extending into the counter die and provided with a rib adapted to the recess of the body die, and springs bearing on the block and adapted to yield as the body die enters the counter die, for the purpose described.
2. The combinatv on in a box making machine, of a recipro'ating die B adapted to the stationary cutter, su stantially as set forth.
Y in the carrier and sup 3. Th combination of a frame, counter die carrier, a cam for vertically reciprocating the carrier, a holder connected to a shaft rocking orting the die B, a crank arm upon said s aft, av weighted connecting rod pivoted to the said ycrank arm, and a stop for arresting the movement of the rod as the carrier completes its downward movement, substantially as set forth.
h4l. T-he combination with the frame, counter die, carrier, 4and .o erating cam, of a holder supporting the die B, a rock shaft turning in the carrier and connected to said holder and provided with a crank arm, a weighted vlever pivoted to the frame and connected with said crank arm, a connectinv rod, and, means for arresting the downward movement of the connecting rod prior to the completion of the downward movement of the carrier, substantially as set forth.
' 5. The combination of a counter die, a block, sliding in said counter die and having a chamber for receiving a heated fluid, an inlet pipe communicating with said chamber, and an outlet pipe extending to the bottom of the chamber, substantially as set forth.
6. The combination of the sliding and swinging die B, counter die, xed cutter, movable cutter, and a sliding rod for operating the movable cutter, set forth.
7.- Ina box machine the combination with a frame, of a carrier sliding thereon, a rock substantially as I shaft supported in bearings'on said carrier, means'for reciprocating the carrier and rocking the shaft, a primary die carried by the shaft to move therewith, a blank-holding member adapted t'o embrace the die, ,ahollow counter die and means for supporting the same, and a crimping ring surrounding the opening of the counter die.
8. In a box machine, the combination with a frame, of a primary sliding and rocking blank receiving die sustained thereby, means for reciprocating the die, a secondary die, a crimping ring surrounding the secondary die, and means for sustaining the said ring.
- 9. The combination of the sliding and swinging die B, a cam operating the same, a counter-die, fixed cutter, movable cutter, and a sliding rod for operating the movable cutter arranged to be operated by the cam.
10. The combination of the 'sliding and swinging die B, a cam operating the same, a counter-die, fixed cutter, movable cutter,
and a'sliding rod for operating the movable cutter arranged to be operated by the cam, substantially as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
LEWIS C. MALTBY.
CHARLES E. FOSTER, GAY N. FREEMAN.