US1038377A - Pasting-machine for box-blanks. - Google Patents

Description

E. JAGENBERG.

PASTING MACHINE FOR BOX BLANKS.

APPLICATION FILED MAY 28. 1912.

Patentd Sept. 10,1912.

4 SHEETS-SHEET l.

E. JAGENBERG.

PASTING MACHINE FOB BOX BLANKS.

rum-non rmm um 28. 1012.

Patented Sept. 10,1912.

4 SHEETS-SHEET 2.

I E. JAGBNBERG.

PASTING MACHINE r01; BOX BLANKS.

APPLICATION FILED MAY 28, 1912.

4 SHEETS-BEBE! 3.

Patented Sept. 10, 1912. Y

ill

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E. JAGBNBERG.

PASTING MACHINE FOB BOX BLANKS. APPLICATION FILED 1m 2a, 1012.

Patented Sept. 10, 1912 4 SHEETS-SHEET 4.

2mm. JAGENBERG, or nussnmoar; ennmnnr.

msmme-uscnmn son Box-arms.

' 'i'specificatlon of Letters Patent. Patented Sept-10,1912.

' Appllcationfiled m 28, 1912. Serial in. 700341.

To all whom it may concern:

Be it known that I, EMIL JAGENBERG, a citizenofthe Empire of-Germany, residing at Dusseldorf, in the Empire of Germany,

5 have invented a new and useful Pasting- Machine for Box'-Blanks,nof which the fol lowing is a specification.

Machines are already known, which cut 'out'squar'e pieces in the founcorners of rectangularbox-blanks and c'reasedzhe four flaps left of the bl'ankso as-to form a rec'- htangular-box open at the--top.= However, a great waste of material is thereby produced.

' In order to avoid this waste, it has already been proposed to form such an open box from a long middle blank and two short :lateral blanks= by pasting the two short lateral blanks to-the-long middle blank. In

this case the two lateral-blanks require to be is-exactly equal-to the thickness of the material. If this condition is not complied with, the p per strips connecting the lateral blanks with the middle blank might break on folding the lateral blanks, or after foldmg the parts the sides of the box might not be tightly connected with the bottom, as

they ought to. This-drawback is particularly found, hand. 'Machines have been constructed, it is true, but they applied the two short lateral blanks one after the other to the middle blank and at an angleof 90 thereto.

- My invention relates to improvements in such machines, whereby it isrendered possible to simultaneously place the two lateral blanks at the exact distance from the middle blank and to connect these three parts together by means of two gummed paper strips having the same length as the lateral blanks. Then on folding thetwo lateral blanks they will be found to exactly fit the bottom ofthe box. Y

I will now proceed to describemy invention with reference to the accompanying drawings, in which Figure l'is an elevation of the improved machine, Fig. 2 is an end view of the same,

Fig. 3 is a vertical section on an enlarged scale through the line AB in Fig. 2, seen in the direction of the arrows, Fig. 4 is-an'-- at a distance from the middle blank, which.

if the pasting is effected by 1 for effecting this pasting operation,-

when looked at from the left in 'Fig. 1,-

sition, Fig. 6 is similar toFig. 5 in which other parts occupy a different position. Fig. 7 shows along middle blank and two short lateral blanks at a distance from one another connected together bymeans of'the newxmachine, and Flg. 8 is a detail.

*S imilar characters of reference refer to similar parts throughout'the several views. In a suitable frame 73 a table 4 *(Figs. 1

and 2) is longitudinally-guided, which on itsunder side has an arm 11, that is pivot- -ally*connected by means of a rod 10 with a lever 71 fastened on ashaft 70 and rocking therewith in the frame. A horizontal shaft 74 is-moun-ted to turn in the frame 73 and carries agroovedcam disk/7, in the groove 7? of which a roller- 72, on the lever 71 engages. Fastened on the left end of the shaft 74 in Fig. 2 is a gear wheel 9, which meshes with a series of gear wheels inthe same vertical plane (see Fig. '1), of which the last gear wheel is fastened on a driving shaft 8, that can be driven from a belt pulley 75, in case a-clutch '76 has coupled it with the shaft 8. The clutch 7 6 is shown to be operated from either of two handles 77, 77* by means of their common shaft 78, a cam 79 at the handle 77 acting upon a roller 80 at the free end of an arm 81, and

by means of the shaft 82-c arrying thls arm and a forked arm 83 engaging in a groove of the clutch 76.- It will be seen, that in this manner the table 4. is reciprocated.

The frame 7 3 is provided w1th two opposite stationary supports 58, 58 in which two superposed screw- spindles 59, 59 are mounted in turn. These screw spindles have each a-right hand and a left hand thread, as is clearly shown in Fig. 2-. Two *movable supports 58, 58 (Fig. 2) are mount.- ed to move on the table 4 or they may just remain clear'of it, the two screw-spindles 59 simultaneously engaging and supporting them. These two screw-spindles should be so connected together many known manner (not shown), that when one of them. is

' turned by hand, also the other is turned, the

essential point being, that the two supports 58, 58 be thereby moved together or apart. Fastened'on the two supports 58, 58 are two parallel thin plates 3, 3, thethickness of which is exactly equal to the thickness of the box blanks a, b, 0, see Fig. 7. Two vertical guides 2, 2 are to be adjustably connected in any known manner (not shown) with the right plate 3 in Fig. 2 and twO similar guides 2, 2 are adjustably secured in any known manner to sultable parts (not shown) of the frame 73, so as to orm with thefirst two guides a magazine for the lateral blanks b. In a similar manner four vertical guides 1 are disposed on the left in Fig. 2, so as to form a magazine-.for the lateral blanks a. On the table 4. are disposed two adjustable ejectors 5, 5 for the known adjustable retainers (not shown), so

- in the two -magazines.

as to permit only one blank a and b to be ejected at a time from under the Columns For the machine shown it is assumed, that themiddle blanks c areplaced one after the other by hand on the table 4 and applied to theface of the ejector 6.

In the machine frame 73 two opposite movable bearings 841, 84 (Figs. 1, 3 and 4) are vertically guided and are pressed up- .ward by means of helical sprin s 15. In these bearings the pivots 13, 13 o a roll 13 Qare mounted to turn and the left pivot 13 in Fig. 4 is so much len thened outward as to carry not only one o the several gear wheels mentioned above as connected with the gear wheel 9 in Fig. 2, but alsoa gear wheel 85. Above the roll 13 a shaft 16 is mounted to turn in the frame 73, which shaft has fastened on it a gear wheel 86 meshing with the above mentioned gear wheel 85, further two eccentrics encircled 'by straps 53,53, a cam disk 25, a disk 23 and a slotted crank 39, while two pressing disks 12, 12 are longitudinally adjustable on the shaft 16 by means of set-screws (not shown). A cam disk 22 (Fig. 4) is adjustably fastened in the frame 73 and can be turned, so as to vary the position of its two opposite cams 22 and 22 The shaft 16 is made to turn in the nave of this cam disk 22. The three boX-blanksa b c ejected by the ejectors 5, 5, 6 on the table 1 are made to pass over the roll 13, while two pressing disks 12, 12 are made to roll overthe neighboring edges of the blanks. In the two disks 23 and 25 a shaft 20 parallel to the roll 13 is mounted to rock and carries an arm 21 with a roller 21 adapted to roll on the pe riphery of the cam disk 22. The shaft 20 passes through the naves of two arms 19, 19, which naves are turnable in the two pressing disks 12, 12 and are so arranged, that they are obliged to follow these disks, when they are longitudinally shifted, while the two arms 19, 19 are prevented from turningv on the shaft 20. The free ends of the two arms 19, 19 carry pins 19, 19, which pass through slots 12 (Fig. 6) in the disks 12 other hal and through two grippers 17, 17 radiall guided in these disks and are on the othei' side of the disk connected with helical springs 18, 18. 'The other end of each sprlng 18 isfastened in the nave of the corresponding disk 12 and it will be seen, that the two springs 18, 18 tend to press the roller 21 on the arm 21 against the cam disk 22. Each pressing disk 12 has for one half a slightly larger radius, than for the so that a. sort of. cam 12 is formed, as is clearly shown in Figs. 3, 5 and 6. Each gripper 17 has a finger 17,

j the outer face of which is at the same distance from the center of the disk 12 as the cam 12*,as long as the roller 21 rolls on the .concentric portlons of the cam disk 22 having the smaller radius. When, however, the roller 21 rolls over the cam 22 or 22", of course the shaft 20 will be thereby rocked, so that the fingers 17 17 project farther outward, as is clearly shown at Fig. 5. It is to be'noted that each ipper 17 is located in close proximity to t e beginning of cam 12 (the disk 12 turning in the direction of the arrow in Fig. 6) and that the finger 17 is normally in close contact with the outer surface of the disk 12.

In the horizontal plane of the roll 13 are i disposed a shaft 87 with disks 87 (Figs. 5 and 6) and a series of four pressing rolls, the pivotsof which are denoted by 56 in Fig. 1. These rolls and the disks 87 have the same diameter as the roll 13. Above the four pressing rolls four like rolls are disposed, the pivots of whichtare denoted by 56 and are mounted to turn in vertically guided bearings (not shown) that can be adjusted by means of hand-wheels 88, 88 (Fig. 1) in any known manner. The disks 87 (Figs. 5 and 6), of which there are several on the shaft 87,-may be thin. As the shaft 87 is geared with the driving shaft 8 and with one pivot 13 of the roll 13 and one pivot 56 of the first pressing roll by means of like gear wheels, it follows, that the first roll turns in the same direction as the roll 13, while the disks 87 turn in the opposite direct-ion, which is of no importance, as they merely serve for supporting the box-blanks a b 0 during their passage from the roll'13 to the first pair of pressing rolls. Of course, where so preferred, the gearing may be so modified in any known manner, as to cause the supporting disks 87 to turn in the same direction as the shaft 13.

All the four lower pressing rolls (the pivots of which are denoted by 56) require to turn in the same direction and are therefore geared together-by means of intermediate gear wheels 89, 89. The gear wheels on the pivots 56 separately mesh with like gear wheels on the upper pivots 56, as is clearly shown in Fig. 1.

The machine frame. 73 supports a horizontal guide 90 (Figs. 1 and 3), at both ends of which two supports 91 are fastened, while two slides 92 (Fig. 3) are longitudinally movable in the gulde. A screwspindle 93 is mounted to turn in the two supports 91 and has a right hand and a left hand thread (similar to 59 in Fig. 2),

which engage in the two slides 92. It will be understood, that when a'hand-crank is put on the square end 93 (Fig. 1) of the screw-spindle 93 and turned in one or the other direction, the two slides 92 can be simultaneously moved together or apart. A shaft 48 above the screw-spindle 93 is mounted to turn in the two supports 91 and passes through the two slides '92. On the right side inFig. 2 the shaft 48 projects from the support 91 and carries a loose pinion 44 and a fast ratchet wheel 47 .(Fig. 8). On a pin 41 fastened on the frame 73 a toothed segment 43 is mounted to rock, the arm 42 of which is pivotally connected by means of a rod 40 with a crank pin 39*, that is adjustable in the slot of the crank 39 for varying the stroke. The pinion 44 is made in one with a bell 45, on the inside of I which a' spring-pressed pawl 46 is disposed for engaging in. the ratchet wheel 47. It will. be understood, that in case the toothed segment 43 is turned downward the springpressed pawl 46 will simply ride over the 'backs of the teeth of the ratchet wheel 47,

but when the segment 44 is turned upward in the direction of the arrow in Fig. 1 the pawl 46 will take along with it the ratchet wheel 47 and thereby turn the shaft 48. Two friction wheels 94-are mounted on the shaft 48 to longitudinally move and are prevented from turning. They are inclosed between the two slides 92 and bows 95 (Fig. 3) fastened thereon, so that they are obliged to partake in the longitudinal motion of the Each slide 92 is madein one with f slides. bearings in which a shaft 96 turns that carries a friction wheel 38- in contact with the above mentioned friction wheel 94. The wheel 38 serves for guiding a paper strip (Z and works together with another guiding wheel 38 mounted to turn in bearings 97, which are guided in supports 98 and are pressed downward by means of screwspindles 99 and helical springs (not shown). Fastened' on each slide 92 are two brackets 100 and 101, of which one 101 carriesa guiding roller 37 and the other 100 apin 102 and is made in one with a wetting device 36; On the pin 102 a drum 35 with broken side disks is disposed for receiving a roll of gummed paper strip I do not furtherdescribe the wetting device 36, as it may be of any approved construction.

A cross bar 103 is secured 73 and carries the stationary knives 49-, 49

of two papercutting devices, the movable to the frame 'knives50, 50 'of which are fastened on a crossbar 52 that is guided in inclined slots 104 (Fig. 3) in the frame 73. The cross bar 52 carries at the ends two pins 105, 105, which are pivotally connected by means of rods 52, 52 with the upper armsof twoarmed levers 52, 52 rocking on pins 106, while the lower arms of these levers are pivotally' connected withthe already mentioned eccentric straps 53, 53. It will be seen, that from the shaft 16 the movable knives50, 50 are reciprocated. Two springpressed supports 51 are disposed above the stationary knives for insuring a sharp cut of the paper'strips d d.

A horizontal shaft 29 (Figs. 1, 3, 4, 5) is mounted to rockin the twostationary supports 58*, 58 and passes through thetwo movable supports 58, 58. On the frame 73 is fastened a pin 26 (on the right in Fig. 4), on which a lever 26 is mounted to rock. The lever 26 carries at the free end a roller 26 which is adapted to roll on the periphery of the cam disk 25 and is pivotally connected by means of a link 27 with an arm 29 fastened on the shaft 29. In thismanner the shaft 29 is rocked from the cam disk 25. A helical spring 29 (Fig. 3) con-' necting the arm 29 with the frame 73 tends to press the roller 26 against the cam disk 25. Shiftable' on the shaft 29 are two locks 28, which canv be adjusted in any known manner (not shown). Each movable support 58 is rigidly connected with a guide 55 above and another guide 55 below (Figs. 3, 5, 6) ,for the paper strip 03. The upper guide 55 is inclined and made to slide with its upper end on the corresponding stationary knife 49, so as to receive the paper strip (2 from the pair of guiding rollers 38, 38

It may be provided with a suitable stripper 107 above and a slot 55 (Figs. 5, 6) below.

The lock 28 is adapted to normally engage with its upper end in the slot- 55 for stopping the cut paper strip d sliding down the guide 55. Each movable support 58 carries a vertical rod 30 (Figs. 3, 5) with a series y of holes, through any of which a pin can be introduced. On this pin two parallel two,- armed levers 31 of a particular shape shown are mounted to rock. The lower arms of these levers are connected by means of helica-l springs 34 with the upper end of the rods 30, whereby the upper arms are pressed downward, as is shown at Fig. 5. Their bent ends 32 are adapted to come in contact with the ends of the gummed paper strips (Z and to apply them to the inner faces of the projecting fingers 17 a (see Fig. 5). The two levers 31 in each pair are at such a distance from one another, that they can move on the sides of the locks 28, and their outer surfaces should registerwith the edges of the paper strip d. The inner projections 34jof the two levers 31 are pivotally con- 28 in such a manner, that when the two locks 28 are turned off from the bottom of the guides 55, the'bent ends 32 of the levers 31 are in contactwith the gummed paper strips (flying on the bottom ofthe guides 55, as is shownat Fig. 5, but when the locks 28 occupy their normal lower position, the bent ends 32 are turned off from the bottom of the guide 55, as is shown at Fig.. 3. It is to be noted, that when the two locks 28 are moved farther off to the left than is shown in Fig. 5, they will by the links 33 move the bent ends 32 downward, so that these ends apply the ends of the paper strips adhering to them to the inner faces of the fingers 17. By selecting any hole in the rods 30 the motion of the levers 31 can be adjusted.

The machine described operates as follows: By simultaneously turning the two screw-spindles 59,- 59 the movable supports 58, 58 are so adjusted that a middle boxblank 0 (Fig. 7) placed by hand on the table {t fits between the two thin plates 3, 3. The ejector 6 is conveniently adjusted. Then the inner guides 1, 2 (Fig. 2) are so adjusted on the plates 3, 3, that the lateral blanks a and b inserted between them have the correct position relatively to the middle blank 0, their cross edges being at the same distance on both sides from the cross edges of the middle blank. Next the outer guides 1, 2 are adjusted on the frame 73 to fit the lateral blanks a and b and the two ejectors 5, 5 are adjusted. Afterward the crank pin 39 is adjusted on the crank 39, so .as to obtain the correct length of the cut paper strips (l (equal to that of the blanks a and b). Thereupon the 'two slides 92 (Fig. 3) are adjusted by turning the screwspindle 93, so as to bring the two drums 35, 35 with the rolls of paper strip into the planes of the plate 3, 3, which determine the uniform distance between the several box-blanks (Fig. 7). Finally the machine is started by suitably turning. either handle '77 or 717*. The table 4 moving from the left to the right inFig. 1 will by means of the three ejectors 5, 6, 5 push the middle blank 0 in conjunction with the two lowest lateral blanks a and 6 forward and introduce them between the roll 13 and the two disks 12, 12 (Fig. 4). The crank pin 39 will by means of the parts 40, 42'move the toothed segment 43 upward, so that in the manner described above the two pairs of guidingrollers 38, 38 are set to rotate for feeding .the gummed and wetted paper strips d ,(Zv downward. When the upward stroke of the segment 43 is finished,-,the two paper strips will stop and at the same time the two movable knives 50 are moved from left to right in Fig. 3 for cutting off from the paper strips the correct lengths,

which then drop and are caught by the two locks 28 (Fig. 3). The two movable knives 50, 50 are again moved back and at the proper time the two grippers '17, 17 arrive atthe lower end of the guides 55, 55 and are moved outward from the cam 22 of the cam disk 22 in the above described manner (Fig. 5) and the two locks 28 are moved outward, so that the bent ends 32 of the levers 31 come in contact with the gummed and wetted face of the paper strips d and apply their ends to the inner faces of the fingers l7". Immediately afterward the two grippers 17' are again moved inward, so that their fingers 17 press the lower ends of the two paper strips against the outer surface of the two-disks 12. As these disks turn in the direction of the arrow in Fig. 6, the two fingers 17 will take along with them the two paper strips (1 sliding down the lower guides 55", and the lower ends of the paper strips will arrive at the same time above the roll 13 as the front edges of the two lateral blanks a and b. The helical springs 15 press the roll 13 upward and thereby also the three box-blanks against the cams 12 of the two disks 12, so that the two paper strips are tightly rolled on the three blanks as they move forward.

Meanwhile the other cam 22 of the cam disk 22 has again moved the two grippers 17 outward, 'so that their fingers l7 release the front ends of the paper strips. The first upper pressing roll (the pivot of which is denoted by 56 in Fig. 1) will soon apply the ends of the paper strips, in case they still project upward from the blanks,

to the blanks andthe pasting operation will be finished by the following pairs of ressing rolls, after which the work-piece ieaves the machine.

It is evident, that the machine can perform its work more rapidly and satisfactorily, than it is possible by hand. Where so preferred, also the middle blanks 0 may be stored up in a magazine between the two plates 3, 3, in which case the machine requires to be modified in a manner too obvious to any expert to require further explanations. Of course in this case the machine will operate perfectly automatically and require less attention.

' The machine described can be varied in many respects, without departing from the spirit of my invention.

I claim:

1. In a machine of the type specified for pasting box-blanks, the combination with means for guiding long middle blanks,'of means for guiding short lateral blanks on both sides of the middle blanks while maintaining them at a uniform distance from the 'middle blanks equal' to their thickness,

means for applymg, .cut gummed paper strips to the neighboring edges of the blanks, and means for pressing the gummed paper strips on the blanks. a

2. In a machine of he type specified for pasting box-blanks, the combination with. a frame, of a roll mounted to turnuin said frame, a shaft turnable in said frame parallel to said roll, two pressing disks on said shaft,

.means for supplying gummed paper strips said roll and said shaft.

3. In a machine of the ty e specified 'for pasting box-blanks, the com ination with a frame, of a roll mounted to turn in said frame, a shaft turnable in said frame parallel to saidroll, two pressing disks on said shaft, means for supplying gummed paper strips to said two pressing dlSkS, two grippers guided in said two pressin disks and adapted to grip and to release t e mmed paper strips, a cam disk on sai. frame, means operated from said cam disk for actuating said two grippers, means for assing long middle blanks one after the ot er between said roll and said two disks, means for passing short lateral blanks on both sides of the middle blanks between said roll and said two disks while maintaining them at a uniform distance from the middle blanks equal to their thickness, means for pressing said roll, the blanks and said shaft with said two disks together, and means for driving said roll and said shaft.

4. In a machine of the type specified for pasting box-blanks, the combination with a frame, of a shaft mounted to turn in said frame, means for driving said shaft, two pressing disks on said shaft, a rocking shaft in said frame, two guides in said frame for out aper strips, two locks on said rocking shafii adapted to catch and to release the cut paper strips sliding in said two guides, a first cam disk on said shaft, means operated from said first eccentric for actuating said rocking shaft, two grippers guided in said two ressing disks and adapted to grip and to re ease the gummed paper strips, a secondcam disk on said frame, means operated from said second cam disk for actuating said two grip ers, and means operated from-said two 100 for applying the ends of the two paper strips to the active faces of said two-grippers during the withdrawal of said two locks.

1 EMIL JAGENBERG. [In a] Witnesses:

HELEN Norma, A. Nurse.

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