US949675A - Machine for filling and closing bags. - Google Patents

Description

J. N. CROWLEY. 11110111113 FOR FILLING AND ULOSING BAGS.

APPLIOATIOH FILED APR. 19, 1905.

Patented Feb.15,1910.

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J. U QWLEY. MACHINE FOR PILLh. AND CLOSING BAGS.

AZPPLIOATION FILED APR. 19, 1905.

949,6?5D Patented Feb.15,1910.

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MACHINE FOR FILLING AND CLOSING BAGS.

APPLICATION FILED APR. 19, 1905. 949 Patented Feb. 15, 1910.

7 SHEETS-SHEET a.

J. N. CROWLEY.

MACHINE FOR FILLING AND CLOSING BAGS.

APPLICATION FILED APR.19, 1905.

9%,W5o Patented Feb.15,1910.

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Jrwmxfa r Jaye ob A4 Cra J. N. CROWLEY. v MACHINE FOR FILLING AND CLOSING BAGS.

APPLICATION FILED APR.19, 1905.

Patented Feb. 15, 1910.

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J. N. CROWLEY.

MACHINE FOR FILLING AND CLOSING BAGS.

APPLICATION FILED APR.19, 1905.

Patented Feb. 15, I910.

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J. N. CROWLEY. MACHINE FOR FILLING AND GLOSING BAGS.

APPLICATION FILED APR. 19, 1905.

M WSD Patented Feb. 15, mm

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JOSEPH N. CROWLEY, .OF TOLEDO, OHIO.

MACHINE FOR FILLING AND CLOSING BAGS.

Specification of Letters Patent.

Application filed April 19,1905. Serial No. 256,480.

Patented Feb. 15, 1910.

To all whom it may concern:

Be it known that I, JOSEPH N. CROWLEY, residing at Toledo, in the county of Lucas and State of Ohio, a citizen of the United States, have invented certain new and useful Improvements in Machines for Filling and ClosingBags, of which the following is a specificatmn, reference being had therein to the accompanying drawlngs.

The invention relates to machines for filling and closing bags, and 1s 'more particularly designed for use in the filling of bags with tobacco.

In the preparation of certain grades of chewing tobacco, the cut leaves are mixed with a molasses or syrup, resulting in a sticky mass which is difficult to handle.

Heretofore, tobacco of this character has usually been placed in bags by hand operation and it is the object of the present inven-.'

tion to provide automatic mechanism for accomplishing this purpose. The difficulties encountered arefirst due 'to the stlcky nature of the substance and sec0nd,.to the fact that any pressure upon the substance Wlll tend to compact it and destroy its value. These difliculties'have been overcome by the prescut construction of machine as hereinafter set forth. Inthe drawings, Flgure 1 1s a long1tud1- nal section, partly in elevation of the ma-' chine; Fig. 2 is'a sectional plan view thereof; Fig. 3 is an elevation of the bag filler; Figs. 4 and 5 are longitudinal sections therethrough, illustratin .the operation of the filling mechanism; *ig. 6 is an elevatlon of the mechanism for the completion of the fill- ,ing operation; Fig. 7 is a erspective view of the bag closing mechanism, illustrating the first of its operations; Fig. 8 is a plan view thereof; Flg. 9 is a perspective view showing the second operation; Fig. 1 0 is a sectional elevation illustrating the third operation; Fig. 11 is a perspect1veview,.showing the final operation of closing the ba Fig. 12 is a erspective View illustrating t e mechanism or dropping the filled bag from i the machine; Fig. 13 is an elevation of the crimping mechanism; Fig. 14 is a perspective view of the actuating mechanism for lowering the bag holder.

In general construction, the machine comprises a series of bag filling devices and a revoluble carrier upon which said filling devices are mounted and by which they are carried into operative relation to the coiiperating mechamsm. There is also associated wit the carrier, mechanism'forclosing the bags when filled and for ejecting them when close as will be hereinafter described.

. In the construction referably employed, the revoluble member .isin the form of a circular table, which is journaled 'upon a base C. The table A is intermittently .driven throu h partial rotations b means of the star wfieel D, which is provi ed with open-ended radial slots a and intervening concave segments b.

E is a rotary head carrying a roll E for .engagin with the slots at and with/a segmental ange E for enga ing with the conis disengage from the slots and thereby locking the star wheel from movement. The head E is mounted upon a vertical shaft F, which is driven through the bevel gear wheels 'F, shaft F and ears F from a motor G or other source ofpower.

, The material to'be placed in the bags is separated into quantitles of proper weight preferably by hand or by mechanism form- 111 no par of the present invention, which re ates to t e filling and bagclosing devices. The filling mechanism comprises a series of filler tubes H, each of which is of a size to fit within the bags and is flared at its upper end to form a receiver. These tubes are lpreferably detachably secured to a revolu- 1ev carrier frame I, which is mounted upon the post B and is connected through th .medlum ofthe ostsIf, head J and post J with the table so as to revolve therewith and all together forming a revoluble carrier.

The engagI ment between the tubes H and the frame is illustratedin Fig. 4, in which I are grooved ways projecting from the periphery of the frame I and H are flanges upon the tubes H, which are adapted for engagement, with said ways. Thus, the tubes may be quickly removed from or engaged with the frame I, and while disengaged the bags to be filled are sleeved upon the tubes.

11 vertical alinement with each of the tubes His a bag-holder K, which is mounted for vertical reciprocation upon the table A.

This holder is formed preferably of two separable sections a and d, which are arcave b durin the interva' in which the roll post or column B mounted upon a suitable ranged to be moved laterally in relation to each other to open or close the holder. To permit of this combined vertical and lateral movement of the holders K, they are preferably secured to the table A through the medium of levers L and L fulcrumed upon the table and extending outward beyond the periphery thereof. Each of these levers is provided with bearings e, in which are vertically slidingly secured the rods M having momted on their upper ends the sections a N is a bifurcated lever embracing the sections 0, d, of the holder K and engaging pins 0, d thereon, said lever being fulcrumed at upon the head J of the carrier. These evers N are preferably in the form of bell cranks and carry on their short arms 9, antifriction rolls 9 which engage with a cam groove h, formed in a stationary head 0 mounted on the ost B. The arrangement is such that in the rotation of the carrier, the rolls g will travel around the cam groove h, which is so fashioned as to cause a movement of theJo'ell cranks N and a consequent vertical movement of the holders K and rods M.

The function of the bag holders above described is first to hold the bag in position upon the filler tube H, and second, to move the bag downward during the operation of transferring the material from the filler tube into the bag, so as to prevent compacting. There is a urther function of holding the filled bag during the operation of the closin mechanism, and the final ejection of the filed and closed bag by the separation of the sections of the holder. These functions are successively performedduring one revolution of the carrier, so that by the time the holders have completed their revolution they have gone through the entire cycle of movements and are ready to repeat the same. These successive movements will now be described in detail, in connection with the cooperating mechanism.

The ba s are placed on the detached filler tubes by t e operator who then places a tube with the bag thereon in engagement with the ways I on the frame I of the carrier,

preferabl at the point indicated by the numeral 1 Fig. 2) in the drawings. During the succeeding movement of the carrier, the roll g, in traveling around the cam groove It will actuate its corresponding bell-crank lever N, so as to raise the-bag holder K and slip the same over the filler tube H and the bag thereon. By the time the filler tube has reached the point indicated by the numeral 2 (Fig. 2), the bag holder has been completely raised, and at'this position the material to be filled into the ba is placed in the hopper of the filler tube. t the next stopping .point of the carrier, indicated by the numeral 3 (Fig. 2), is arranged a plunger P, the shank of which is vertically slidably mounted in bearings Q on the bracket arm Q, secured to the upper end of the post or column B. The lunger is act-uated by a lever B, which is lcrumed at R and at its inner end is connected by the rod R passing downward through the hollow column B with a bell crank lever S actuated by a revoluble cam S. This cam is mounted upon the shaft F, before described, and during the continuous rotation of said shaft, the cam is revolved and at certain points in its rotation, will impart movement to the bell crank S to cause a corresponding movement of the plunger P.

The plunger P is of a form to exactly fit within the filler tube H and during the interval when said tube is arranged at point 3,the

plunger will be depressed, thereby forcingthe material within the tube downward. multaneous with this 0 eration, the bag holder K is depressed and at the same rate of movement, so that the material ejected from the lower end of the filler tube will be placed in the bag without compression. Inasmuch as the depression of the bag holder occurs during the interval of rest of the carrier, it is obvious that the stationary cam it cannot be utilized to impart the. necessary movement to the bell crank N. A separate actuating device is therefore provided, comprising a slide T enga ing a radial channel in the head 0. This slide is provided with a recess T which is initially in registration with the cam groove it, through which the roll 9 'travels durin the movement of the filler tube H to statlon point 3. Thus, in. the final movement of the carrier, the roll g passes out from the cam groove it into the recess T of the slide T.. This slide is connected by a link T and bell crank lever T with a rod U, passing downward'through the hollow column, and connected at lts lower end with a bell crank lever U, one end of which is provided with a roll engaging a second cam groove U in the cam wheel S. This cam groove is so fashioned thatduring the perlod of rest of the carrier, the slide T will be moved outward in the radial slotand will thereby actuate the bell crank lever N to depress the ba holder K, as has been before described. A ter this movement of the slide, the-roll g will be held in a osition in registration with a portion h o the cam groove h, so that the succeeding movement of the carrier will rengage the roll with this cam and groove.

In the next succeeding movement of the carrier, the bag holder having the filled bag therein is transferred to station point 4 (Fig. 2) where the topofthe bag is folded to close the same by mechanism of the following construction :V is a rock shaft j our- I on the bed C and extending in a horizontal planeradially in relation .to the table A. This shaft is longitudinally slidable as well as revoluble'in'its bearings and is reciprocated lo'n 'tudinally by a ever V having a bifurcate u per end embracing a grooved collar V on t e shaft and engaging the same by pins V. At the inner end of the shaft is a foldin plate V".which in normal position exten is upward, but which may be turned by a: partial rotation of the shaftv into a horizontal plane. This rocking of the shaft is effected b a rock arm V feathered upon the shaft In normal position of parts, the rock shaft V which is in a. plane slightly above the bag holder in its lowered position is with-drawn outward, so as to clear the path of the bag in the holder durin its movement from station 3 to station 4. en at the latter point, the shaft. V is first-moved inward by the operation of the lever V after which the actuation of the rock arm V will cause a rockin of the shaft and the turning of the late asindicated in Fig. 7, so as to fold ownward one side of the bag projecting above the holder. The ends of the bag are then folded by oppositely moving fingers W and W. These are secured-to parallelly arranged rods Wand W ,-wh1ch are connected by a lever W which causesthem to move oppositely in relation to each other.

One of these rods is connected to a rock arm I W adapted at-the pro er time to reciprocate the rod to cause t e operatlon of the folding finger attached thereto and through the medium .of the lever W simultaneously 1 actuate the opposed fingen. The rods W",

W are supported upon a table W upon which is also fulcrumed the lever W. This table is arranged just above the upper end 1 of the bag holder and is in the path of the bag as it is moved by the carrier from station point {tto station point 5. Thus, after one sideand the ends of the bag have been folded by the mechanism described, the movement of theba holder will carry the bag beneath the tab e W which will fold down the. remaining side.

After the bag has been folded'in the manner described, it is preventedfr'om again opening by a crimping mechanism arranged at station point 5. This, as illustrated in Fig. 11, com rises a plate X of a size to fit the top of the closed bag, said plate being carried by a laterally extending arm X secured to the vertically movable rod X which is slidably secured in bearings X The lower end of this rod extendsi'n roxiuiity to a cam X upon a shaft X WhlCh is driven through the medium of bevel gear wheels X from a shaft X and the latter is driven through the medium of bevel gear naled bearings in a vertical standard V V wheels-X from theshaft F. The cam X spring X on the rod X, the effect being to strike a sharp blow upon the bag and cause the creasing or bending of the paper, so as to give apermanent set or crimp.

The shaft X upon which the bevel gear wheel X is mounted extends-outward and has secured. thereto a cam wheel Y for op- .erating the folder mechanism. The actuating connections between this cam and the A folder comprise two anti-friction rolls i and 7' respectively engagin cam ooves u on opposite sides of the w eel an an antiriction roll is engaging the periphery ofthe wheel. These rolls are respectively con- .nected tovertically slidable rods Z, m, n.

The rod Z is connected by a link 0 with the lever V which is in the form of a bell crank. The rod m is connected by a link p with a rock arm q'on a rock shaftg' upon which the rock arm .W is secured. The rod 91. is connected .to therock arm V. Thus, the single cam wheel ,Y is'used to actuate all of the parts of the folder mechanism.

As soon as the crimping of the bag has been efi'ected, the sections 0, d of the holder are separated to permit of. the disen agement of the be effected by the 0 lowing mechanism: Z is a cam upon the shaft X which engages a lever Z for actuating a slide Z arranged radially of an annular head Z mounted on posts Z on the bed. This annular head Z 1s provided with an annular channel r with "which a roll 1' on a rock arm 8 en ages.

The rock arm 8 is secured to a vertica rock shaft t journaled in bearings upon the carrier A and provided at its upper end with oppositely extending rock arms a connected by links 0 with the levers L and L. The slide Z is arranged to extend across the path of. the channel 1* and is rovided with a recess a, which is normal y in registration with' said channel 1" and forms a complementary portion thereof. The channel 1' is concentric with the axis of the revoluble carrier A, and as a consequence during the movement of the carrier the roll 1" will travel around this channel without imparting any rocking movement to the shaft t.

7 Thus, the levers L and L will remain stationary and in a position Where the sections 0 and d of the bag holder are closed. When, however, "the roll a engages with the recess 1' of the slide Z at station oint 5, movement is imparted to said sli e from the cam Z through the-medium of the lever therefrom, this. elng" Z, and this will cause a rocking movement of the arm, .9 and rock shaft t which in turn actuates'l' ithe rock arm a and li-nks v to separate the ;f; l'evers L and L anfigthe sections 0, d carried thereby. Whe'n' thus separated, the filled and closed bag will drop out as indicated in Fig. 12.

In the above description only one set of levers L and L and bell crank lever N have been described but it will be understood that each of the bag holders K is provided with a set of levers which are successively operated during the movement of the carrier in the manner described.

What I claim as my invention is 1. In a bag filling machine, the combination with an open-ended filler tube adapted for the sleeving of a bag on the lower end the upper end of thereof, a reciprocating plunger for entering said tube and ejecting the material therein fromthe lower end thereof, a bag holder embracing the bag sleeved upon said tube, and means for lowering said bag holder simultaneously and correspondingly with the movement of said plunger, whereby the bag is filled without compacting the material.

' 2. A bag filling machine, comprising an open-ended filler tube adapted for the sleeving of the bag on its lower end, a bag holder embracing said bag upon said tube, a plunger, means for reciprocating said plunger to enter the upper end of said tube and eject the material therein from the lower end thereof mechanism simultaneously and correspondingly actuated for lowering said bag holder, and means for subsequently disengaging the filled bagfrom said holder.

" 3. In a bag filling machine, the combination with a revoluble carrier, of an openended filler tube and a bag holder mounted upon said carrier and in vertical alinement, means for reciprocating said bag holder vertically in relation to said filler tube, a plunger arranged to register with the upper end of said filler tube during the interval of rest of said carrier, means for reciprocating said plunger to eject the material from said tube simultaneously and correspondingly with the lowering of said bag holder.

4. In a bag filling machine, a revoluble carrier, means for intermittently actuating said carrier, a series of filler tubes mounted thereon, a plunger arranged to register with said tubes during successive intervals of rest of the carrier, mechanism for actuating said plunger to eject the material from the lower.

end of the registering filler tube, a bag holder for each filler tube, and means for lowering said bag holder simultaneously and correspondingly with the downward movement .of said plunger, whereby the material is placed in the bags without compression.

5. In a bag filling machine, the combinapaper t-( prevent the re-opening 0 tion with a revoluble carrier and means for intermittently, actuating said carrier, of a filler tube adapted for the sleeving of a bag thereon detachably engaging said carrier, a bag holder mounted on said carrier in alinement with said filler tube, means operating during the travel of said, carrier for raising said bag holder to embrace the bag ,on said filler tube, a plunger arranged to register with said filler tube during an interval of rest of said carrier, and means for correspondingly and simultaneously depressing said plunger andsaid bag holder, for the purpose described.

6. In abag machine, a revoluble carrier, means for intermittently actuating said'carrier, a series of radially extending; ways at the periphery of said carrier, filler tubes adapted for the sleeving of a bag thereon and for detachable engagement with said ways, a bag holder in alinement with each filler tube when in engagement with said ways and mounted for vertical reciprocation upon said carrier, aplunger for ejecting the. material from said filler tubes and means for simultaneously depressing the corresponding bag holder, for the purpose described.

7. In a bag filling and closing machine, the combination with a revoluble carrier, of a filler tube mounted thereon, a bag holder in alinement with said filler .tube, means for transferring the material from said filler tube to the bag in said holder and folding mechanism with which said bag holder registers during the movement of said carrier for closing the top of the bag, and mechanism for crimping the closed top to prevent the re-opening of the bag.

8. In a bag filling and closing machine,

the combination with a revoluble carrier, of

a bag holder mounted thereon, means for filling the bag mechanism subsequently operating for foldin close the same and a crimping device consistingof a plate registering with the top of the bag holder, and means for depressing said plate to crease the open ed eiofbthe t e ag.

9. In a bag filling machine, a revoluble carrier, a series of filler tubes mounted there-.

on, a corresponding series of bag holders in alinement with said filler tubes and each formed of separable sections, means for vertically reciprocating said holders to engage or disengage the same from said filler tubes, and means for laterally moving the sect-ions of said holder to separate the same.

10. A bag filling machine comprising a revoluble carrier, a filler tube mounted in the upper portion of said carrier, a bag holder in vertical alinement therewith formed in separable sections, laterally movable levers with which the respective sections of said holder have a vertically sliding the top of said bag to engagement, means for raising and lowering said holder in relation to said filler tube, and means for operating said levers to separate the sections of said holder.

7 11. A bag filling machine comprising a vertical column, a revoluble carrier journaled upon said column, a filler tube mounted on said carrier, a bag holder in alinement with said filler tube mounted for Vertical movement upon the lower portionof said carrier, 'a lever for raising and lowering said bag holder, and a stationary cam mounted on said column engaging with said lever to actuate the same durnig the movement of the carrier.

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

JOSEPH N. CROWLEY.

Witnesses:

M. B. MCCARTHY, M. C. NOLAN.

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