US1001319A - Box-making machine. - Google Patents

Description

A. STADER'INI.

BOX MAKING MACHINE.

APPLICATION FILED MAE.7,'1910.

1,001,319. Patented Aug. 22, 1911.

2 SHEETS-SHEET 1.

COLUMBIA PLANOOIAPI! 60.,WASHINOTON. u. c.

A. STADBRINI.

BOX MAKING MACHINE.

APPLICATION FILED MAB. 7, 1010.

2 SHEETS-SHEET 2.

COLUMBIA PIANOOI-APH CO" WASHINGTON. D. C.

Patented Aug. 22, 1911.

ALESSANIDRO STADERINI, 0F ROME, ITALY.

BOX-MAKING MACHINE.

Specification of Letters Patent.

Patented Aug. 22, 1911.

Application filed March 7, 1910. Serial No. 547,927.

To all whom it may concern:

Be it known that I, Annssanono STAD- ERINT, manu'tacturer, a subject of the King of Italy, and residing at Rome, in the Kingdom of Italy. have invented a new and useful. Box-Making Machine, ot' which the tollowing is a specification.

The present invention relates to a box making machine and in the annexed drawings is shown a practical form of same.

Figure 1 is a side view of the machine. Fig. 2 is a plane view of the same. Fig. 3 is a section on line A-B of Fig. 1, and Fig. 4 shows a box made by the machine. Fig. 5 is a cross section through a box containing a core and shown in three different stages of the process. Fig. (3 is a section on line C-D of Fig. 1. Fig. 7 a section on line EF of Fig. 1, and F 8 shows the shape of the paper blanks from which the boxes are made.

In the drawing 1-- is a pile of paper blanks of the shape shown on enlarged scale in Fig. 8. The pile of paper is kept later ally by rods 9- and rests upon a-lath -8- which, hmvever, si'ipports only a portion ot the sheet pile, viz. that which is near the folding flap (Fig. 8) ot the blanks. In order to prevent the 't'alling down of the portion of the paper blanks in front of the folding tlap .t-, on the front rod -2-- is provided a spring 5-, on which rest the paper blanks. Under the frame supporting the sheet pile there is a suction pipe 8 connected with an air pump --7- by means of a rubber hose (3-. This aspirator is rotatably mounted on a support and can be swung by means of a cam mounted on the main driving sha'tt -'l O-, controlling the movement of a lever -11 provided with a roller which runs on the said cam, and by means of the connecting rod J?- and of the lever 13 connected to the aspiirator. The front portion of the aspirator --8-- is placed between two pulleys 14L mounted on a shaft to which pulleys is imparted a rotary motion through a chain wheel drive 15 from the main shaft l.(). The lever ]3- by means of a connecting rod -15- is connected with a lever -1S pivoted at 16- and carrying a cylindricalv roller -17, and namely in such a manner that on account of an opening 19 provided in said connecting rod #15, in which slot plays a pin fitted on lever -18, the lever -]S only starts swinging when the lever -l3 has already pm'tormed a part o'l its oscillation and when therefore also the suction pipe of the aspirator has already performed a part of its oscillation.

Now when the machine is running, the lowest sheet of the pile -'lis sucked up by the aspirator --8 which, as already stated, is in communication with the air pump 7, wherea'lter the suction pipe --Q- is witlulrawn and places the sheet adhering to it, on the pulleys --l4 In the meantime also the lever --18- with the cylindrical roller --l.7- has been swung, so that said roller rests now on the sheet which the suction pipe 8-- had placed on the cylindrimil pulleys -1 L--. Therefore, the sheet is lying between the roller -17 and the rotatin pulleys --1-l----, and as it is pressed against the pulleys 1-'l-- by the roller 17, so it is carried forward by the said pulleys. Now the sheet picked up from the pile is dropped into a tunnel-shaped chute -20- and Falls upright on the bottom 2lof same. The suction pipe -8 swings then back to the initial position shown to pick up a second sheet which, as the former sheet in the meantime has already been carried t'arther. is also dropped into the tunnel-shaped chute and so on. Now the blank which is in the chute 2()-- is folded around a core corresponding to the shape of the box to be made. A large number of these cores is placed in a vertical rectangular pit 22*. Now the lowest of the cores -93 located in the pit -9Q-- by means of a nose 2- l can be caused to advance. underneath the pile of cores passing through rectangular slots in the walls of the tlunnel-shaped chute -20-. Now when there is a sheet in the Ltunnelshaped chute -90-, the core --23- which has been caused to advance by the nose -2-1;-- comes into contact with the central portion 25- (Fig. 8) of this blank, and, when the core is caused to advance farther and to pass through a rectangular slot in the second wall of the tunnel shaped. chute --90-, said blank is doubled around the core -23-, as shown at a in Fig. 5. Also the movement of the nose 2--t. which produces the forward motion of the lowest core, is controlled by a cam mounted on the main shaft 10 and acting on the lever -26- and the connecting rod 27-. The nose is formed by a double-armed lever pivoted at 28 which by means of a flat spring -29, which presses a pin against the arm 24 is kept in the position shown in the drawings. The action of this spring 29-- is that the nose, after having carried away the lowest core of the pile, when moving backward can belowered through the pressure of the cores which are sunk down so that the nose slides in this movement under the pile of the cores and only at the end of the backward stroke, pressed upward by the spring 29, it will again be ready to push away another core, which latter carries then away in its turn the successive sheet which in the meantime has been dropped in the funnel-shaped chute. In order to be able to stop the working of the machine, on the slide block carrying the doublearmed lever 2a is provided a stop lever 31-. When this lever is turned upward, its nose -32 raises the end of the double-armed lever A, which end rests above the said nose, so that the arm of the lever carrying the thrust nose is depressed and during its reciprocating motion it slides underneath the cores without pushing forward any of them.

To avoid a sudden sinking of the pile of the cores 23 after having removed the lowest core from below, which would produce a great noise, at the sides of the gang way for the nose 2 f-, are provided sliding blocks 33 These sliding blocks, the construction of which is more fully illustratcdin Fig. 7, through a. cam mounted on the main shaft are moved upward by means of the double-armed lever 3t pivoted at as soon as the lowest core has been carried away by the nose -24-. so far that it is no more in the way of the sliding block 33-. The sliding blocks take them up the successive core and move downward, when the lowest core has been completely carried away from below the pile of the cores causing thus said pile to lower little by little. The core which, when passing through the funnel-shaped chute -20 has carried away the sheet of paper contained in said chute and has now its upper and lower face covered by said sheet, is caused to advance by the nose 24* so far as to completely abandon the funnel-shaped chute 20, as shown at 36- in Fig. 3. By means of rods -37, which laterally pass across the way of the cores, the paper is kept in its position adherent to the core. Now during the forward motion the lower edges 38- (Figs. 5 and 8) meet beveled surfaces which in Fig. 3 are shown by dotted lines 39 and which fold upward these edges 38 in the way shown in Fig. 5*. At this stage the core is pushed into the position shown at t0 in Fig. 8 by another advancing core. Now in this position takes place the guinming of the edges 41 (Figs. 5 and 8). The gumming devices consist of double-armed levers -4-2 which are pivoted at l3 and controlled by a cam mounted on the main shaft -10 which acts on a lever 14 provided with a roller running on said cam, and linked to a connecting rod et5 -46 is a vessel filled with gum, into which dips the free end of the double-armed lever 4l2, when the lever is moving toward the right hand side. If a core is in the position -l0-, the lever let swings toward the left hand side, whereby the free end of the lever -4t2, which having been dipped into the vessel -4t6 and provided with gum, rises upward and strikes against the edges -itl of the paper blank. Of course for each gangway of the cores two levers -4*2 are to be provided which can be moved together by a single driving device.

In order to avoid that in case of a sheet having been missed viz. a core bearing no blank having been pushed forward, the gumming ends of the levers 4:2- touch the guide plates -37 dirtying them with gum, these plates at the points, which would be touched by the free ends of the levers 4t2, are provided with slots --l7, through which the levers can swing upward without touching the guide plates 37. The core situated in the position 40- and covered by the blank with gummed edges, after having received two further pushes, reaches a rectangular pit 1S, the bottom of which is formed by a rectangular piston 49 (see also Fig. (3). The piston l9-, when a core has been pushed upon it, is raised upward by means of a cam mounted upon the main shaft 10 on the edge of which runs a roller carried at the lower end of a connecting rod 50 linked to the piston. During this operation the gummed edges l-1- of the blank, which project laterally, strike against plates -51- which when receiving a strong thrust, can be shifted laterally overcoming the resistance of the springs 52. The edges 41, when sliding over these plates during the ascent of the core are bent down ward and by said plates 51 pressed against the edges 38, whereby the edges forming the side walls of the box are made to adhere and the box takes up the shape shown in Fig. 4. The superposition of the edges 38 and 41 is illustrated at c in Fig. 5.

In order to facilitate the introduction of the folding lap -4 of the box in the slit 53, on the piston 49 can be provided a small protuberant boss which during the ascent of the core abuts against the upper edge of said slit and bends the same slightly inward, to which end the cores, of course, must have a corresponding recess. lVhen the core has been raised above the plates -5l---, those, under the action of the sp rings 2-- move again inward until the abut against the piston -----%l:t which is soi'ne what smaller than the cores, so that at the successive dowi'n'vard stroke of the piston, the cores remain snpportcdby the said plates 5l.-. Now the cores enveloped in the finished box during the further working ol the machine move upward in the pit --il8 and the side walls ot this pit can be made resilient or at several points can be provided with elastic plates, so that the (Wei-lapping edges are pressed together repeatedly or continuously during the ascent in order to secure their perl'icct adhesion. .lJuring the ascent takes place the drying of the boxes so that they reach completel stuck and dried the upper opening oil" the pit m 8- Now when a core w'apped in a box leaves at the upper end the pit ------it8-----, the lower .t'ace ot the box is level with the bottom ot a guide channe -5l.----, the construction o'l which is shown in Figs. It and At the. side of this guide channel. which troin the pit -4-8 leads to the pit -22---, provided a, slide This slide by means of a connecting rod ne is linked to a double-armed lever pivoted at -.57, the lower end of which linked to the connecting rod --2T---. This connecting rod -2T-- .vhieh, as it has been already mentioned serv s to move the thrust nose -2:t-, causes a so the slide to more in such. a way that the movement (it this slide always takes place in the op iositc direction. to the movement (it the nose itt- The slide '55- is provided with a catch --tit)--, the tooth --ttO-- (it which in. the n'ioinent, in which the slide --55-- has reached its extreme position on the left hand side engagis with. a notch -tS.l----- oil the uppermost core. N ow when the slide -55- moves toward the right hand side, the core is thereby drawn out from the box. By means of a nose -l3f3--, which under the action of a spring rests against the core, the box is kept in its position, the said nose l'es 5 against the upper edge -t3fl--- (.llig. it) o; the hex, thus prm'enting the box jtollowring the movement ot the core.

When the slide --55- has reached its extreme pox-:ition on the right hand sidie nose --til;-- engages behind the core moved toward the right hand side by the said slide with its catch, so that, when the slide "as moves again toward the left, the core can, not be brought back but the nose of the catch -5)-- leaves the recess ---(3l ilitoreo'ver to the slide --55--- is applied a lever to-- which during its movement toward the left causes the empty box already tinished to move with it; and then throws same into a collecting basket beneath or in a chute. \Vhen. the slide has r rached its position on the extreme let't and the empty box has thus been expelled the piston lt)--- rises and the 'l'ollowing box still provided with a core comes out 'l'rom the mouth ot the pit lS wherebv the catch -----I')$l--- engages again with the recess ---t' l--- and the ."a'me oper: tion is reptated. When the slide moves toward the right. the lever --t' o'l. course, strikes against the box, troni which the core is to be drawn out and :lor this reason the said lever is rotatably mounted and cepli in position by a spring so that. when it strikes against the box it swings backward and slides along the sides of the box, wherea'l'ter under the action (it the spring it resumes its position.

in order to ascertain the number (it boxes manu'l aetured the lever -435- has two arms and the machine is provided with a counter -----t tS- which. when the lever 435 oscillates, is caused to move l'orwa rd by the second arni ot this lever. ll a bare core arrives. then the lever --t=;' does not swing, because in this case it does not strike against any box and therel'orc the counter -(SO-- is not: caused to move 't't'irward. ()11 account; at this disposition the said counter always im licates the exact number ol the linishcd boxes. 'lhe bare cores on the guide channel --5*l----- move succer-irivclv toward the right hand side until they reach the top ot the pile --2)---- so that, when the lowest core ol the said piles has been ca rricd away by the thrust nos and the pile sinks, the core which has reached its top is lowered into the pit 22 in this wa v the cores perlorin a continuous cycle.

The two piles ot cores consist ot the same number of cores. Now when the machine starts working and both of the core piles are em 'itrv, viz. there are no boxes around the cores ol: the lclt pile, tle height ot both ot the said core piles is the same. llowever, it. cores wrapped in their boxes enter the lc'l't core pit. then at the entering of each ol. the cores cnvelo 'ied in a box the height of the pile increases by the double ol? the thickness oi the paper, so that; the core pile would surpass the guide channel l--. in order to avoid this the guide channel is not rigidly 'lastened to the pits -----2:2---- and d8, but at -t T--- it is hinged to the pit 'lhe .?;uide channel above the pit ---l.S--- at a point, at which the rising cores are not covered with paper. is pro vidcd with a stop --tth-----, against which strikes the upper core when rising. 'lhe1e by it is obtained that the upper core lifts the guide channel ---5l---. and that, when the lelt core pile is growing in height the said guide channel is swung upward around the pivot ----t37------, keeping thus always the same position with respect to the upper core of the lelit core pile. Now when the upper core is drawn out, as soon as the stop 68 does not rest on the upper core, the guide channel 54 would sink down until the stop -68 comes into contact with the suc cessive core. As this of course would cause a great inconvenience in the working of the machine, the guide channel is linked to a vertical rod (39 which by means of a brake70- controlled by a cam mounted on the main shaft can be kept in position. Now as soon as the upper core is drawn out from the box, the rod -69- is fixed through the brake -70 so that, when the core has been drawn out, the guide channel 5t cannot fall down. On the contrary, as soon as the piston -4l9 raising the left core pile has reached about its highest position, the brake 70 releases the rod 69', so that the stop 68- rests again on the upper core and the position of the guide channel is again regulated according to the height of the left core pile.

As shown in Figs. 2 and 3, the machine can conveniently be built in such a way that two separate working sections are placed one near the other, so that at each turn of the machine two boxes can be made. The-principal driving gears can be placed inv the center between the two working sections so that for both compartments a single driving gear may sufiice.

Having now fully described this my invention and how the same is to be carried out, I declare that what I claim is:

1. In box making machines the combination of: a support for paper blanks; a supply of loose cores in a vertical pit, means for removing a core from the bottom of said pit and folding and gumming a paper blank thereon; a second vertical pit; means for bringing the core wrapped in the blank under the lower opening of the second pit;

means for raising same to the upper opening of the second pit; and means for taking out of the box the core at the upper opening of the second pit and returning it back to the first pit.

2. In box making machines with a support for paper blanks and of loose cores whereon the blanks are folded and gummed the combination of: a vertical pit; means for carrying the cores taken out from the finished box to the upper opening of said pit; means for removing a core from the bottom of said pit and folding and gumming thereon a paper blank; and means for supporting the pile of cores in the pit and lowering same smoothly when the bottom core is removed.

3. In box making machines with a support for paper blanks and of loose cores whereon the blanks are folded and gummed, the combination of a vertical descent pit filled with bare cores; means for removing a core from the bottom of said pit and folding and gumming a paper blank thereon; a second vertical ascent pit, means for bringing the core wrapped in the blank under the lower opening of the ascent pit; means for raising same to the upper opening of said pit; a guide channel establishing a passage for the cores from the upper opening of the ascent pit to the upper opening of the descent pit; and means keeping constantly the bottom of said guide channel at the same height of the lower face of the upper core in the ascent pit.

4. In box making machines with a support for paper blanks and circulating loose cores whereon the blanks are folded and gummed, the combination of: a descent pit for the bare cores; an ascent pit for the cores wrapped in the folded and gummed blanks; a guide channel establishing a passage for the cores from the upper opening of the ascent pit to the upper opening of the descent pit; hinges at the end of said channel connected to the descent pit, and a stop at the other end resting on the upper core of the ascent pit.

5. In box making machines with a support for paper blanks and circulating loose cores whereon the blanks are folded and gummed, the combination of: a descent pit for the bare cores; an ascent pit for the cores wrapped in the folded and gummed blanks; a guide channel establishing a passage for the cores between the upper openings of both pits; a stop at the end of the guide channel adjoining the ascent pit, resting on the upper core; and a braking device which keeps in place the guide channel when the upper core is removed from underneath said stop, and releases same when the next following core is raised in the ascent pit until it comes in contact with the stop.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ALESSANDRO STADERINI.

Witnesses LETTERIO LABSOOETTA, ANTONIO LABSCOETTA.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Batents, Washington, D. C.

Images