US1634538A - Bag-filling machine - Google Patents

Description

. l July 5 927 N, M. FEGELY BAG FILLING MACHINE Filed May 15. 1925 4 sheets-suelen 1 nventoz 33%@ Gimme/1f M du@ fw ul 5 1927. J y N. M. FEGELY BAG FILLING MACHINE Filed May 15. 1925 4 Sheets-Sheet 2 woentoz 1 l July 5 927 N. M. Fecal-:LY

BAG FIL-LING MACHINE Filed May 15. 1925 July` 5, 1927.

N. M. FEGELY BAG FILLING MACHINE Filed May l5. 19,25 4 Sheets-Sheet 4 Patented July 5, 1927.l

Ass'IGNoR, BY MESNE ASSIGNMENTS, ToA

NATHAN m. FEGELY, or .IoLAgxANsAs ENI oFFICE- BATES VALVE BAG COMPANY., or CHICAGO, ILLmoIs, A CORPORATION or- WEST' VIRGINIA.

Applmauqnnled May/15,1925.. serial ms. 30,454.

This invention machineSand more particularly to machines which are adapted to. feed a predetermined weight of material into bags to be filled.

An object of the invention is to provide a machine whichwill readily discharge theA filled bags.

The invention consists inthe novel fea-` tures, arrangements, andi combination of parts embodiedj-by way-of example` in the' apparatus hereinafter described, as illust-rat ing a preferred form of the invention. and the invention may 'be more particularly pointed out in the. appended claims. Further objects and advantages .of the' invention will further appear from .the following description taken in connection with the accompanying'drawings which show, by way of example, a preferred ,embodiment of the invention. i

Referring to the drawings. in which the r same reference characters indicate' the same parts in the various views:v

Fig. 1 is afront elevation' of the machine with certain parts brokenawayj' Fig. 2 is a side` elevation of the `machine with certain parts broken away.

Fig. 3 is a detailed view. partly' in section, showing the discharge throat and filling spout together with associatedparts. y Fig. 4 is a similar'view 'showing the di s charge'spoutin a difl'erentposition.l

Fig. 5 is' a-perspectv'e view showing the filling spout, closure means, and various 11s- 'sociated parts.

A brief description will first be given setting forth some of the more important features in a general way. A feed'hopper for holding the filling. material is supported on.

a suitable frame and vassociated therewith is an agitating means and a centrifugal impeller for forcefully feeding the filling material through a discharge throat 'adjacent the.

bottom of the feed hopper. 'A bag filling spout is pivotally mounted on an upright member carried by the weight receiving end of a weighingscale which is suitably mounted adjacent the base of the supporting structure.' This filling Spollt-also acts as a means for supporting the bag to be filled and isnormally in register with an opening provided in the discharge throati VThe filling spout, together with the vmembers-supporting, it from theiscale, is movable vertically relates valve'l-)ag filling' mal position,` where it -receive an empty bag to befilled.

may be now operated to is mounted `on `the `cross 3 and 'charge throat portion 26 and with respect to the Vdischarge throat Aandwhenso -moved is adapted to pass out of register with the throat opening, thereby shutting oil the flow of is mounted adjacent the discharge throat and is connected by suitable mechanism to `thej spout in such -a mannerthat' upon operat- 'filling material. AnA auxiliary closuremeans pivoted filling ing this auxiliary closureV means the spout is swung about its pivoted point in a downward vertical .direction,-so that ,the filled bag" is allowed to slide from the spout. The ivoted spout is provided ancefadapted to-eturn the spout to its nor# is locked ready. to

The auxiliary closure means place the discharge in communication,

throat' and filling spout vand .to simultaneously Alock the spout in `horizontal position.

Referrngto the drawings,'the frameworl comprisesthe-base .members 1` 2, 3. and 4 with a counteraltowhieh arey attached the uprights, 6, 7,

8, 9 Aand -10.' Suitable 'diagonal mem;

` -ber-S111. 12,' 13. A 14,15 and 16" are' provided for stiil'ening the frame.- feedhoppe'r v-17 pieces 18v aud-1,9 attached-respectively to the4 uprights 5-'6 n agitating paddle 20, supportedin sui ,tablebearings, is positioned within thehoppfen 17 and Ais .rotated by suitable motive means .(not` shown) lattached tothe sprocket21. A sump 22 is provided at the ottornof the. hopperl'aud a centrifugal' niiounted in the sump and is adaptedjtoberotated by suitable motivemeans (notl shown) applied to the pulley24-(Fig. 1). l

Referring to Figs; 3'and 4, a forwardly projecting discharge throat -25 provided with :1n-opening 25.* 'is attached to the sump22 andthe openingis in communication with the sumpand feed hopper. The front end of thethroat 25 is provided with a vertically extending portion 26 -provided with a .suitable guideway to accommodate a closure means to -be described following.

Y A bag support, in the present embodiment in the form of a filling spout 27 is', rigidly attached-to a closure plate 28 in sliding engagement with thefront face-of the disis provided with hinges 29 and 30 (Fig. `5).m`ounted onV a hinge pin 31 pivotally supported at its to the torque rod 44 which is supported free to rotate in the bearings 45 and 46. -A crank arm 47 is rigidly attached to the end ofthe torque rod 44 projecting beyond the crank 42 and carries at its rear end a crank pin 48 which engages a slot 49' formed 4in the endv of a connectingr rod 50-the length of the slot 49 being adjustable bymeans ofv the set screw' 51. jThe upper end of the vconnecting rod 50.is p ivotally connected to a link 52, pivoted to a lever 53, pivotally attached to a' supporting link 54,` which is at tached to the cross member 18. The end of the lever arm 53 projects beyond the support 54 and is pivotally'attached to a vertically slidable .closure Ameans 55, movable in the guideway formed in the port-ion 26 of the throat 25fan`d lis provided with an openinnr adaptedtol be moved into-register with te opening 25a and the bore of the dis chargesupport spout 27. A handle 56 is'vk attached to the other end of the lever arm 53.

A cross piece Y57 (Fig. 5) is rigidly attached at its respective ends tothe top of the scale uprights 3%35 and its bottom edge is bevelled downwardly and rearwardly and isa adapted 'to serve as a seat for a similarly bevelied face formed in the upper edge of the closure plate 28. rThe rearface of the cross member 57 forms a continuation of the rear face of the closure plate 28 and i is in sliding engagement with the face of the throat portion 26. .The link 38 is provided with alongitudinal slot 58 (Fig. 4) terminating at its forward end in an upwardly extending recess 59, and a stop pin G0 (Fig. 5) is mounted adjacent the upper end of the scale upright 34, and is slidably inountedin the slot 58 and adapted to be seated in the recess 59. A

The scale uprights 34-35 (Figs. .1 and 2) extenddownwardly from` the support spout 27 and support a verticalshieldl and a cradle 62 for supporting a valve bag to be filled. Downwardly extending bearing portions 63-64 are attached to the lower ends of the uprights 34-35 and are supported respectively on the knife edges 65-66 carried by the balance beam 67 which is supported on the fulcrum G8 carried by the cross piece G9 which is suitably supported by the frame structure of the machine. The rear end ot A the discharge throat 25,

the vbeam 67 carries a balance weight 70,`

which is suitablyl supported by knife edges Y in the usual manner. An auxiliary riderweight 71 is prbvided and is carried on the beam 67 and adapted to be slidably moved withl respect thereto. A vertical strut 72 is rigidly attached to Jthe lower end of `the cradle 62 and uprights 321-35, extending downwardlytherefrom; and a similar strut .73 is similailyatt-ached to the weight 70.

Tie rods 74 and 75 are each pivotally attached at their opposite ends to the struts 72 and 73 respectivelyan'd at their -adjacent ends are pivotallyattached to the pin v76. The beam 67, struts 72 and 73, tie rods 74 and 75`together with their associated parts form a parallel link mechanism which restricts'the cradle 62 and associated parts to a vertical'movement. A link 77 (Fig. 2) is pivotally attached at its forward end to uprights 34-35 and at its rear end is pivotally. attached to the supporting structure of the machine `and .serves to hold the plate 28 in mtimatecontact with the forward face of the discharge throat.

While a machine 'comprising only enc.

unit hasV been shownl by way of describing Y this invention, `it will be obvious to those skilled in the art that the invention is equally adapted to machines comprising a plurality of units as'is usual in this type of machine.

Operation. l

Referring to Fig. 5: at the beginning of -tlie cycle of operation now to be described,

closure means 55 is in its downward position thereby serving to close the opening in An empty valve bagis placed in position von the supportingr spout 27 (see also Figs 1 and 2) with the spoilt' extending into the Valve thereof. The motive means is now put in operation to rotate the agitating impcller and the centrifugal impeller. The handle 56 is pulled down, as shown in Figs. 1. 2 and 5, thereby raising the auxiliary closure means 55 and hence placingr the throat opening 25 in-communication with the discharge spout 27. This movement of the handle 55 also moves the connectingr rod 50 downwardly and the upper portion of thc slot 49 engaging the crank-pin 48 rotates the lcrank arm 47 downwardly together with the torque rod 44 and the crank arm 42, which in turn pulls the link 40 and its at 'tached link 38 downwardly thereby scat ing the stop pin 60 in the recess 59. This` liu locks the closure plate 28 in the posit-ionv the valve bag at this time beingvfilm. As soon as the material in the bag has reached i the desired predetermined weight, which is sufiicient to overcome the balance weight of the weighing scale, the forward end of the scale beam tips downwardly carrying with it the uprights {5d- 35t and thir Connected parts. This moves the closure plate 28 vertically downwardly to `thereby close the'discharge throat opening 25a. The slot in the lower end of the connecting rod 50 allows a limited movement sufficient to accommodate the verticalniovement of the pin 48 which necessarily moves downwardly with the closure means 28. The bag is now ready to be discharged from the machine. The handle 56 'is now pushed up, whlch moves the auxiliary closure means 55 downwardly to thereby close he discharge throat opening 25. This oper tion also raises the connecting rod 50 bringing the set screw 5l into engagement with the crank pin 48 which raises the crank arm 47 thereby raising the crank arm 42, the link 40 and link 38 to thereby release the pin 60 from its cooperating recess 59 thereby allowing the closure plate 28 and t'he attached spout 27 onA which the bag is supported to swing downwardly about the hinge pin 31. This pivotal movement of the spout 27' allows the filled bag to slide from the spout 27, thereby discharging the filled bag from the machine. The counter-balance 36 returns the closure plate 28 and spout 27 to their normal positions; and at this time, the scale beam, supportingicradle, and associated parts return to their normal positions. This completes one cycle of operation and the machine is now ready to operate .as hereinbefore described.

Having thus described my invention with 'particularity with refe-rence to the preferred Y embodiment of the saine, and having referred to some of the possible modifications thereof, it will be obvious to those skilled in the art after understanding my invention, that other changes and modifications may be ,made therein without -departing fromthe spirit and scope of my invention, and I aim in the appended claims Ato cover such changes and modications as are within the scope 0f the invention.

What I claim is:

l. In a valve bag filling machine the combination of a discharge throat having a discharge opening, a substantially horizontal pivotally mounted valve bag supporting means for supporting the valve of a valve bag normally in register with said opening and movable vertically relative thereto and adapted to be tipped downwardly about its pivot, closure means for said throat opening movable with said supportin means to thereby close said opening, loc ing means for holding said bag supportingfmeans in a substantially horizontal positioLA and means' to release said locking means.

2. In a valve bag filling machine the oombination of a discharge throat having a discharge opening, av member movable vertically with respect thereto. a bag filling spout normally in register with said opening and connected to and movablefwith said verti" y permit it-`to be 3. In a valve bag' filling machine the c ombination of a discharge throat having av a member movable vertidischarge opening, cally with respect thereto, a bag filling spout and a first closure means connected to and movable with said vertically movable member. and pivotally movable vertically with respect thereto, said closure means being adapted to close said throat opening, means to normally hold said spout and closure means in a substantially horizontal position, a second closure means adapted to also close said throat opening, and means to move said second closure means into position to close the said throat opening and to release said spout and first closulel means to thereby permit said spout to be tipped downwardly.

4. In a valve ba filling machine the combination of a discharge throat provided with an opening, a normally substantially hori zontal pivotally mounted bag supporting means adjacent said throat movable vertically with respect thereto adapted to hold a valve bag being filled in proper iilling position and to be tipped downwardly, closure means for said to be operated by the said support, means vertical movement of to hold said support throat opening adapted l tion, and 'means operated simultaneously with said,vertica lly movable support to release said support to thereby pe'rmit it to be tipped downwardly when the bag has recleived a predetermined weight of materia In testimony whereof'I have signed my name to this specification.-

NATHAN M. FEGELY.

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