US964200A - Box-ending machine. - Google Patents

Description

J. P. BIRD. BOX ENDING MACHINE. APPLICATION FILED MAR.27, 1909.

Patented July 12; 1910.

' ZSHEETB-SHEET 1.

J. P. BIRD.

IBDX ENDING MACHINE.

APPLICATION FILED MAI-1.27, 1909.

Patented July 12, 1910.

2 SHEETS-SHEET 2.

nnrr

JAMES PHILIP BIRD, OF PLAINFIELD, NEW JERSEY.

BOX-ENDING MACHINE.

Specification of Letters Patent. Patented July 12, 1910.

Application filed March 27, 1909. Serial No. 486,135.

To all whom it may concern:

Be it known that I, JAMns P111111 Brno, citizen of the United States, residing at Plainfield, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Box-Ending Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to box-ending machines, such, for examples, as shown in United States Patents No. 364,161, to Cushman; N 0. 423,415, to Damren, and No. 515,207, to Glazier.

Prior to my invention, the platens of boxending machines have been provided, on their under surfaces, with relatively narrow tension-plates that extend from front to back of the platens, between the righthand and left-hand sides thereof. In all prior constructions known to me, these tensionplates when of spring-like construction are apt either to buckle or to bend between their ends; and, in some constructions, tip endwise (or become so tipped during the operation of the machines), when the box-end carrier moves forward with a boX-end on it and first brings the box-end into contact with the rear, under margin of the tensionplate. Such buckling, bending and otherwise tipped position of the tension-plates are obyectionable because interfering with the proper placing or registration of the box-ends as they are successively carried from the box-end hopper by the box-end carrier or feeding-blade to registering position between the under side of the platen and the inturned flanges of the paper boX- body, such flanges, when in registering position, resting on the two side walls and on the front wall of the box-form, whether it is a recessed box-form or a solid one. Either the buckling or the endwise tipped position of the tension-plate results in tipping the box-end from its proper, continuously horizontal, path of movement, and thereby frequently tips the rear edge of the box-end out of its abutting contact with a transverse abutment on the upper surface of the boxend carrier. Whenever, in the operation of machines of this class, the rear edge of the box-end, during its forward travel, gets out of engagement with the transverse abutment or the like of the boX-end-carrier, the pro er operation of the machine is interfered with v and the box-end piece fails to register properly, at the completion of the forward movement of the boX-end-carrier. Hence one operation of the machine is often lost, and a defective box produced. At each mis-registration, or, if the imperfectly registered boxend is taken ofl' from the box-flanges by the operator, then the machine has to complete another cycle of operations before properly applying a box-end to the box-body flanges 1n proper register.

l/Vhile it is not broadly new with me to combine a platen and tension plate with the front end of the tension-plate removed inwardly from the front edge of the platen so as to leave the under front margin of the platen continuously solid in its opposition to the upper surface of the front upper margin or wall of the box-form, my invention permits of this highly desirable arrangement, whereby, during the compressing operation of the machine, the front upper margin of the box-end is continuously and uniformly pressed against the thereto opposed inturned flanges of the box-body.

In carrying out my invention, the tensionplate is preferably made of a rigid block, so that it can neither buckle nor bend in the operation of the machine; and it is so mounted in the platen as to be capable of up-anddown movement therein. Nevertheless, my new tension-plate is loosely mounted, so that, at the initial contact with it of the forwardly moving box-end, the rear end portion of the tension-plate moves momentarily upward, thus "slightly depressing its front end, but this movement from the proper horizontal position is almost instantly overcome and the tension-plate restored to horizontal position by the action of the forwardly moving box-end on the plate and the therewith connected leveling mechanism hereinafter set forth.

Referring to the accompanying drawings, Figure 1 is a view, partly in side elevation and partly in lengthwise section on line 11 of Fig. 2, of one form of box-ending machine embodying my invention. Fig. 2 is a top-plan view, on a smaller scale, of the platen and hopper, and of a part of the lengthwise reciprocating feed-slide or boxend-carrier with which the machine is provided. Fig. 3 is a view partly in elevation and partly in section, at a line corresponding to line 33 of Fig. 2. Fig. 4 is a sectional view of the platen, at line 4-4 of Fig. 2, and shows the tension-plate and its 7 automatically operating leveling mechanism in elevatlon, the tenslon-plate belng 1n its lower posltlon. Flg. 5 1s a s1m1lar v1ew,

showing the tension-plate in its higher poplicable to box-ending machines wherein the box-form and platen are relatively movable toward and from each other. The usual boxend hopper H is mounted at the rear of the platen, and the box-end carrier or feed-slide S is mounted, as usual, so as to be reciprocated beneath the body of the hopper to carry one box-end m from the bottom of the pile X of separate end blanks under the platen and into registering position with the inturned flanges of a box-body when the flanges are placed on the front and two adjacent upper margins of the box-form. The usual pasting mechanism for applying paste to three margins of the under side of each boX-end is not shown,'but 3 indicates a part spring 16 is mounted.

of mechanism for reciprocating carrier S.

To carry out my invention in its preferred form, the platen is recessed at 4: be-

tween its front and back portions and midway between its sides, on its under surface,

for reception of the preferably rigid tension-plate T the under surface of which is best provided with lengthwise extending ribs 5 to reduce the friction between the platen and a forwardly moving box-end in contact with it. Tension-plate T is freely movable up and down in recess 4: so as to quickly respond to the movements imparted to it in the operation of the machine, and is attached to the lower upset ends 6 of a pair of upright studs 7 which pass freely through apertures in the platen and are jointed at 8 to the lower arms of a pair of bell-cranks 9 pivoted at 10 to uprights 11 on the platen. The upper arms of the bell-cranks are connected by a rod 12 which is jointed to the bell-cranks at 13, 13. Rod 12 is provided with an adjustable collar 14, between which and a loose collar 15 on rod 12, a coiled Collar 15 rests against the rear side of a stop-post 15 on the platen.

'When carrier S moves the lowermost box-end 00 from the stack, the transverse shoulder Y of the carrier is in engagement with the rear edge of the box-end, and should continue in such engagement during the forward or feeding stroke of the carrier in order .to effect the required registration above explained. As the box-end is carried forward, its upper front margin engages the .rear end of the tension-plate, the bottom of which, in this position of the machine and at the time of such initial contact, is slightly below the level of the under side of the platen and slightly below the level of the upperiside of the box-end, so that the latter may frictionally engage the tension plate at its said initial movement. To facilitate such initial engagement, the rear end of the tension-plate is beveled upwardly at 17.

WVhen the advancing box-end first positively engages plate T, the rear end of the plate is instantly lifted, but such movement carries the upper arm of the rearward bellcrank forwardly (against the resistance of spring 16) and pushes the upper arm of the forward bell-crank forwardly, thereby raising the forward stud 17 and restoring the platen to the proper horizontal position which it only'momentarily lost at the initial positive contact :of theadvancing box-end with the rear end of the tension-plate. The box-end is thus correctly held during its-advancing movement, and its rear edge prevented from rising above shoulder Y of the carrier S. At the proper or desired time, in relation to the pressing operation, carrier S is retracted, and as it moves rearwardly, the tension of spring 16 moves rod 12 rearwardly until the tension-plate is restored to its lower position.

Collar 14 is best made adjustable, as indicated by set-screw 18, on rod 12, so that the tension of spring 16 may be regulated according to the stiffness of the spring to adjust the automatically operating mechanism of the tension-plate to box-ends of different thicknesses or quality.

The tension-plate and its automatic equal izing or adjusting mechanism may be constructed otherwise than as shown without departure from my invention.

What I claim is 1. A box-ending machine comprising a platen and box form, one movable in relation to the other; a reciprocable hon-end carrier; a box-end hopper for said carrier and in operative relation thereto; a tensionplate carried by the platen and vertically.

and bodily movable in relation to the under surface of the platen; and means for automatically causing the entire plate to adjust itself vertically when pressure is applied at any point of its under surface. i

2. A box-ending machine platen in combination with a tension plate; means for automatically causin the entire plate to ad just itself vertically when pressure is applied at any one of its under surfaces.

3. A box-ending machine platen in combination with a rigid tens1on.p late and means for automatically causing the entire plate to adjust. itself vertically when .pres sure is applied .to. its rearward part vby a forwardly 'moving box-end on the box-end carrier, and said carrier.

4:- The combination of the platen with the tension-plate; a pair of bell-cranks pivotally connected with the platen; connections between the tension-plate and arms of the bell- 5 cranks; a rod connecting the other arms of the bell-cranks; and a spring and abutments therefor.

5. The combination of the platen with the tension-plate; a pair of bell-cranks pivotally 10 connected with the platen; connections between the tension-p1ate and arms of the bellcranks; and a rod. connecting other arms of the bell-cranks.

In testimony whereof I have afiixed my signature in presence of two witnesses.

JAMES PHILIP BIRD.

Witnesses:

EDWARD S. BEACH, F. E. NARES.

Images