US1589800A - Bagging machine - Google Patents

Description

J. FRANK BAGGING MACHINE Filed July 23, 1925 June 22 1926.

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Ja Zia@ Y 1pk June 22 1926.

J. FRANK mesme MACHINE Filed July 23, 1925 5 Sheets-Sheet 5 June 22 ,1926. 1,589,800

J. FRANK BAGGING MACHINE Filed July 23, 1925 5 Sheets-Sheet 4 J. FRANK BAGGING MACHINE June 22 1926. l 1,589,800

Filed July 23, 1925 5 Sheets-Sheet. 5

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75 (15a o Og 0o -LI /Jga Patented June 22, 1926.' l

UNITED STATES i l 1,589,800 Pari-arry orriciz'.`

" .IULIUs FRANK, or CHICAGO, ILLINOIS. 'l

BAGGING MACHINE.

This invention relates to an apparatus to be used in charging measured quantities of materials, for instance food products, in subdivided form, into individual ba s or envelopes fed 'to the apparatus in pac ages and therefore in form which requires the bags to be taken successively from lthe package, conve fed to a point atwhich the material is ischarged, and there opened in time to receive the goods.

The object of 'the 'invention is to provide a machine of improved construction which Will perform the several functions of feeding the package of bags to the picking-ofi point, picking up the outermost bag from the package and moving it. beneath. the point of material discharge, acting upon, opposite Walls of the bag to draw them apart and open the bag toreceive the material, discharging the measured quantity of material into the bag, releasing the bag from the opening means. and conveying the bag from the machine; also to provide accurately timed actuating mechanism for these several instrumentalities which function asl aforesaid; and to provide in general a machine foi' the purposes stated which will be not only eiiicient in service, but durable in .use and reliable through an extended period of service.

The invention .proceeds upon'the principle of measuring and discharging predetermined quantities of material to be packaged. through means of a revolvingbottom lin a hopper With a measuring pocket which passes beneath themass of material in the hopper then beneath a false bottom and over a discharge chute; the pocket in thefeeding bottom being designed .with a maximum capacity desiredand being limited at will to a less capacity by the introduction thereinto of liners conforming to theside. Walls of the pocket 'and having suicie'nt thickness to effectftlie desired reduction in capacity of the pocket; locating 'adjacentthe discharge chute of the-ho er al air of'o osed suc- PP a p pp lfurther details of means for advancing the here bysuction to the opposite walls ofthe v bag and draw them apart ljust previous -to the .discharge through the chute, the suction being t ereupoiil interrupted so that the bag will drop upon an endless conveyor Application inea .my 23, -1925. 4serial 1ra-45,684.

apron; ,also providing a suction picking device movingv in a path transverse to the opening device, and adapted to receive the.

from the end of the package to a position between the f opening elements and said pick-up comprising an air exhaust connection open at the time of'transfer of the bag but closed at the time .the opening ele.

mentsact. upon the-bag; also an electiomagnetic or solenoid actuator for 'im-parting-l transverse movement to the pick-up; and a 'circuit closerfor saidyactuator; all these mechanisms, namely, the air fsuction controls for opening elements 'and the pick-up, as Well as the means for mov/ing the package of envelopes, and the switch for tlie solenoid actuator, -being each operated by a'cam located to insurethe proper timing of the several functions. i

The invention 'l consists in novel features of construction hereinafter fully described and particularly pointed out in the claims, having to dovvith the several elements of .the machine organization 'abo ve'enumerated,

as Well as with the disclosed driving mechanism for the measuring bottom, cam shaft, suction developing means, etc.

In the accompanying drawings, Fi ure 1 is a plan-.view of a machineembodying the several features of' the invention, the hopper being in horizontal section on the line 1-1", Figures 2 and 3;,

Figure 2 is'an elevational view of the machine as seen from the near side of Figure l;

Figure 3 is an elevational view of the inachine as seen from the right hand side of Figures 1 and 2';

Figure 4 is an elevation of details having to do With the opening of the suction ofthe pick-up device and movement of the bag package, the construction bein partlyin section upon the line lx- 4* of Figure 1;

Figure 5 is an elevationalview. showing bag package and an opening member beyond the envelope holder, parts being-shown details in the construction of the means for opening the suction in the bag-opening deico y i in section upon the line 5"--5X of Figure 1; 2

Figure is an elevational view showing section on the line 7 X-7x in Figure 1, showing details of the means for moving one of the opening elements to bring them together and apart; and Figure 8-is a plan view of the power mechanism, parts being in section on the line x-8x of Figures 2 and 3. l

1 represents a cylindrical hopper having a rotatable bottom 2 `constructed with a measuring pocket 3, and 4 represents a false bottom in the hopper located on one side of `a diameter or chord of the hopper, inclined toward the other side thereof so as to direct material in the hopper towards the other side, and having beneath it a discharge chute 5 (shown in dotted lines in Figure 1, in section in' Figure 2, and in elevation in Figure 3), so that as the bottom 2 revolves, the pocket 3 will pass successively beneath the mass of material in the hopper from which it will be charged, thence to a position over the chute 5 through which it discharges, a striking plate 6 being located beneath the inclined false bottom '4 .to strike the measure of the pocket 3 as the pocket passes from beneath the mass of material. As-shown in Figure 2, there may be a plurality of measuring pockets 3, two such pockets being illustrated at about a semi-circumference apart so that each revolution of the bottom 2 will cause two charges of material to be deposited in the chute 5,. Pockets 3 will be vconstructed on dimensions that will give a maximum quantity of material to be deliveredand in order to adapt them to deliver a less quantity, any desired number of reducing liners 3a may be provided, with external edimensions adapting them to fit within the pockets 3, each liner being secured in place, vif desired, by means of a releasable spring ball detent 3b. i y .Bottom 2 is rotated through means of a shaft 7 the lower end of which is connected by bevel gears 8 with horizontal shaft 9 which in turn carries a worm wheel 10i driven by a worm 11 (Figure 3) on a short shaft 12 which carries a pulley 13 connected by a 'belt 14 .with some suitable source of power, such for instance as ulley 15 on the electric motor 16 (see also-Figure 8). Preferably pulleys 13a and 15a are arranged upon the same revolving members respectively, with the pulleys 13 and 15, so that the belt 14 may be shifted and establish a different drive ratio between`the motor 16 and the shaft 12 when the particularl physical condition of material to be packaged makesl it desirable to doso.A

17 represents the stationary element, and 18 the movable element of a bag-opening an air trunk 21, which latter contains a conbelt 27 ruiming between sprocket 28 on the shaft 9 (see Figure 8) and a sprocket 29 on said cam shaft 24 (see Figure 2).

In order that the movable opening element 18 may be caused to approach and recede from the stationary element 17, in definitely timed relation to the discharge through the chute 5 and the development of suction in the elements 17 and. 18, element 18 is telescopically assembled with its suction pipe 20 as seen more clearly in Figure 7, and the telescopic portion is gripped by an arm 30 rigidly mounted on the thrust shaft 31 (Fig. 7) guided in bearings 32 and presenting one Vend, through anti-friction roller 33, to the action of the cam 34 on the same shaft 24 that carries the suction-inducing cam 23 (see Figure' 6) already described. The opposite end of thrust shaft v31 being under the influence of a return spring 35, it follows that arm 30 will move the suction element 18 toward and away from the stationary element 17 at intervals regularly timed and of such duration as the shape of the cam 34 determines. In the preferred arrangement, namely that which is illustrate-d, the sequence in which these several movements take place is approach of element 18 to element 17, said elements being open to suction not later than the moment of their nearest approach, then withdrawal of the element 18 while suction is maintained on both elements, and then'discharge of material through the chute 5 so that if a bag `has previous to said sequence of movements, been introduced between the elements 17 and 18, its sides will have been Ldrawn apart in time to admit the charge of material from the chute 5. Cam 23 (see Figure 6) may be arranged to have its salient 23a pass the thrust' rod 25 immediately/,following the deposit of material or the weight of the material dep sited in the envelope may bedepended upon to overcome the suc` tion of elements 17 and 18 and cause the charged bag to drop upon the endless apron 36 driven by pulley v3611on the cam shaft 24, kby which the bag'l-,is carried from the device of suction type, said elements 17 andwmachine.

18 being in the nature of tubes with perforated ends as shown in section in Figure 7, andthese elements 17 and 18 are connected, respectively, by air pipes 1.9 and 20 with In order to present a bag between the elements 17 and .18 in properly timed relation tethe functioning of those elements and. their correlated parts as just described, a

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llafaattsoo -open but guarded byl arresting fingers 38 and with itsrear end closed and affording abutment for 'feed spring 39, ismounted to slide upon the base 40 under control of rock-arm 41 moved in one direction by a spring 424 and in .the opposite direction by A-fa thrust rod 43 engaging the rock-arm through the medium of offset 43a (see Figures 4 and 5) which thrust rod is under kcontrol of cam 44 on the same shaft 24 that controls cams 34 and 23. This bag holder 37 is mounted in position to bring the foremost bag of the pack which it contains, in the plane which extends between the opening elements 17 and 18 preferably close to the stationary suction lelement 17, and upon reaching said plane, presents said outermost bag to a suction finger 45 (Figures 1 and 2) on the air pipe .46 which is telescopically4 related to the air trunk 47 controlled by a valve 48 (See also Figure 8) which valve is under control of cam 49 on the same shaft 24 with the `other cams already described, so that each time the bag holder 37 is moved to bring its foremost bag against the suction finger 45 and pipe 46, air will be eX- hausted from the pipe 46 vand from its iingers, and said foremost bag will adhere to the-finger 45 and pipe 46. At this time, the core 50 of a solenoid magnet 51, connected by yoke 52 with the pipe 46, will be deenergized by means of a mercury switch 53, and

v the core 50 of said magnet 51 will be 'advanced by a spring-operated plunger 55 mounted in a container 551?, the plunger 55,

being connected by an arm 55c to the air pipe 46 which it moves inthe direction totransfer the finger 45 and pipe 46 :and the ,adhering bag, to a position between the opening elementsv 17'and 18. Deenergizing of magnet 51 is timed to present the bag as described, just before the element 18 approaches the element 17, this being effected by means ofthe cam 54 on the same shaftA 2,4 which carries the cams 23,24, 34 and 44.

Upon energizing the magnet 51 by the mei-` cury switch 53, core 50 will be returned and Y thus withdraw the pick-up' device 45, 46, from its position between the opening elevments 17, 18, a stop 56 upon the rear end ofA the core 50 with a spring 55 being provided t'o ,absorb the shock of the core as it returns.A 57 represents feed wires for the solenoid 51,

which are continued past 4the solenoid by connection58, and-reach the switch "53. Mercury switch53, found in '.the open market by sucli designation, is preferably used for control of the magnet 51 because it has been found to be the most suitable circuit closer for use in connection with a cam used as an actuating means.

In order t-omaintain suiicient vacuum in the air trunks 41 and 47, a fan 59 (see Figures 2 and 8) is preferably used. This fan is driven through belt v60 on pulleys 61 and 62, from high speed motor 63. 64 represents the discharge spout of fan 59.

While I have described with particularity the several elements preferably used in making up the organization of the apparatus described, I desire it to be understood that my" invention is not limited to the use of these precise elements, but extends to any elements capable of performing functions required in the operation of the machine and which are comprehended in the terms of the subjoined claims.

I claim:

1. In apparatus for filling packages, thev combination of means for supplying' material, having means for controlling discharge of such material, a bag-opening means located beneath sueh discharge, and comprising a pair of suction elements, means for,F causing such suction elements to approach and separate, and means for developing suction inv said elements as they separate. 2. In apparatus for packaging materials, a hopper adapted to contain the material to be packaged, timed means for 'discharging material from said hopper lin measured quantities, a bag opener located beneath the discharge of said hopper consisting of a pair of suction tubes in position to impinge material into bags, a hopper, means discharging from this hopper at timed intervals measured quantities of material therein, a cam for controlling said discharge, means for opeiing a bag comprisinga pair of-suction tu es located beneath the discharge from the hopper, means for separating said'suction tubes at timed Iintervals definitely related-to the discharge intervals of the hopper, and means for developing suction insaid tubes'- at timed intervals definitely related to the separation ofthe'V clnding a cam bearing definitely timed relation to the cam whic controls the discharge.

4. In means, for packaging subdivided materials, a bag opener comprising a pair of suction tubes respectively stationary'a'nd movable in a direction to cause them to approach and separate, an arm supporting the movable suction tube, a slide shaft carrying silic arm, and a cam acting upon said slide s a t.

5. In means for packaging subdivided tubes; thel two meas last named each ining upon the said slide shaft.

6. In means for packaging subdivided material, a bag opener comprising fixed and movable suction tubes in position to'act upon opposite walls of a bag introduced between them, and means for sliding a` bag edgewise in between said tubes and within reach of the fixed tube; said movable. 'tube being timed to approach after introduction of suoli bag and recede while the bag is supported between them, and said tubes having means for developing suction within them during the recedingof the movable tube.

7. In apparatus for placing subdivided `material in bags, a bag opener consisting of opposed suction tubes, and means for introducmg bags between sai-d tubes conslstlng of a suction finger movable in a plane which passes between said suction tubes.

8. In apparatus for introducing subdivided material into bags, a bag opener, a pick-up for bags moving in a plane intersecting said opener, and means for successively presenting bags to said pick-up; said pick-up consistingof a suction device having means for developing suction therein at timed intervals definitely related to thcl movement of the pick-up toward the opener.

9. In apparatus for placing subdivided material in bags, means for discharging measured quantities of material at regularly timed intervals, a bag pick-up, and means for moving said pick-up to a position which presents the envelope beneath the discharge,

said means consisting of a magnet having a core connected with said pick-up, and means energizing said magnet at' timed intervals definitely related to said discharge.

10. In apparatus for charging subdivided lnaterial into bags, means for discharging measured quantities of the material at regularly timed intervals, a bag pick-up consisting of an air pipe having a suction member which it presents in position to receive bags, said pipe being movable to a position which presents the bags successively beneath the material `discharged, and means for maintaining a vacuum insaid pipe during its ,of the packaguto the. pick-up.

cago, I1lino'is,.this 21st day 115 movement.` Y y u 11. In apparatus for charging subdivided material into bags, means for discharging measured quantities of thevlnateria'l-at regularly timed intervals, a bag pick-up consistmg a stationary suction tube, an air trunk,

tion in which it receives ay bag to a posiing of an air pipe having a suction member which it presents in position to receiveA bags, said pipebeing movable to a osition which presents the-bags successively eneath the material discharged, means for maintaining a vacuum in said pipe during its movement, and means for imparting movement to said pipe consisting of an electromagnet having a core connected withsaid pipe and means for energizing said magnetat regular intervals definitely timed in relation to discharges of material.

12. In apparatus for charging subdivided material into bags, a hopper, discharging means for delivering measured quantities of material from said hopper, a bag pick-up movable from the position in which it-receives a bag to a position which presents the bag beneath the discharge from the hopper,

a spring-pressed plunger imparting movement to said pick-up, an electromagnet adapted to Withdraw said pick-up, a switch for closing the circuit of magnet, cams re, volving in definitely timed relation, respectively controlling the discharge from the hopper and the closing of the magnet switch.

13. In apparatus for charging subdivided material into bags, means for delivering measured charges of material at timed intervals, a bag pick-up movable from a position which presents the bag beneath the disv charge, and means for supplying bags to said pick-up comprising a bag carrier presenting a package of bags exposed at one end, said holder being movable to and from the pick-up, and means for moving said bagholder and said pick-up at intervals definitely timed in relation to the discharge of materia-l. A

' 14. In apparatus for charging subdivided 10Q material into bags, a material holder having means for discharging measured quantities of material therefrom at timed intervals, an endless apron traveling beneath the discharge from said container, a bag opener located between the discharge from the contaii'ierandsaidl endless apron, a bag pickup movable from a position in which it receives ,a Vbag to a position between said discharge and said apron and presenting abag U0. i

Signed at JULIUS 'FRANK

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