US2476723A

US2476723A - Positive grip filling machine

Info

Publication number: US2476723A
Application number: US661400A
Authority: US
Inventors: Goldberg Max
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-04-11
Filing date: 1946-04-11
Publication date: 1949-07-19
Anticipated expiration: 1966-07-19

Description

July 19, 1949. GbLDBERC-i, 2,476,723

Q POSITIVE GRIP FILLING MACHINE I5 Shets-Sheet 1' Filed April 11 1946 M AX GOLDBERG INVENTOR 58 ATTORNEY y 9, 9 49. .M. GOLDB'ERG I 2,476,723

POSITIVE GRIP FILL'ING- mcamf.

Filed April 11, 1946 3 Sheets-Sheet 2 .rfiillllll lllllllwll /--IIIIIll|l in" v n" w MAX GOLDBERG INVENTOR.

Y ATTORNEY M. GOLDBERG 2,476,723 POSITIVE GRIP FILLING MACHINE I July 19, 1949.

I ,3 Sheets-Sheet 3 Filed April 11 1946 MAX GOLDBERG v INVENTOR. BYW fl um/ ATTORNEY Patented July 19, 1949 UNITED STATES PATENT OFFICE This invention relates to a machine for fillin the casings of articles, particularly those me of non-porous fabric, skins, etc. v

An object of this invention .is to provide a m chine for filling fibrous materials by movable gripping jaws having one-way feeding teeth which-positively grip and feed the fibrous material into non-porous or porous fabric casings.

Another object of this invention is to mount the feeding jaws on plvotally mounted links of equal length so as to cause the grippingjaws to move and feed while in parallel relation toeach other.

Another object of this invention is to pivotally mount the feeding jaws on the upright legs of a slidable and inverted U-shaped frame to permit the fibrous material to be fed to the feeding jaws between the upright legs of the slidable frame.

Another object of this invention is to provide a rotatable cam for actuating the frame down-- wardly and to provide tension springs for raising the frame with a-quick return motion.

Another object of this invention is to provide fixed cam mechanisms which causes lateral movements of the opposed feeding jaws.

With the above andother objects in-view, the invention will be hereinafter more particularly described, and the combination and arrangement of parts will be shownin the accompanying drawings and pointed out in the claims which form part of this specification. I

Reference will now be had to the drawings, wherein like numerals of reference will designate corresponding parts throughoutthe several views, in which:

Figure 1 is a front elevation of the filling ma,-

chine, the housing being partly broken away to;

show the interior of the mechanism. Figure 2 is an end view of the filling machine shown in Figure ,1, the housing being partly.

broken away.

Figure 3 is a cross-sectionalview; the section being taken as on line 3-4 in Figure 1.

Figure 4 is an enlarged fragmentaryview of a mechanism which reciprocates the feeding.

jaws in parallel relation.

In the illustrated embodiment of the invention, 5 the numeral l indicates a gripping and feeding mechanism for fibrous material. The mechanism.

Ill comprises a mounting plate I l, preferably supported in an upright position on an angular ex-- tension l2.

An inverted U-shaped frame .13 is mounted in v bearings It for vertical sliding motion on the mounting plate, Tension springs I secured at.

2 Claims. (01. 226-49) support the "frame in uppermost position. open face type disk cam Zllis fixed to a shaft ZI by a key 22.. The shaftl'l is rotatably.

mounted in -;a'bearing 2.3 secured to the mounting plate H. The cam 2!! has an abrupt radially directed face portion 24. ,The com contacts an elongated "extension 25 on the horizontalbar ll of the U shaped-frame l 3.

In practice, the length of the radially directed cam face. is less than the length ofv theelongated extension 25 to assure contact of the upper or contact point of the extension 25 with the cam 20 and. avoiding" contact between the cam; and the horizontal bar I! of the frame l3.

The cam l0 is of the open face disk type and may be taken-as representing any suitable means for actuating the frame l3 toward the lower por-- tion of the mounting plate H The cam .20 imparts a downward motion to the frame l3 forevery revolution of the shaft, and

the tension springs l5 raise-the frame when released by the cam. The frame is raised with a.

at-the uppermost and lowermost ends of each stroke.

Each gripping and feeding Jaw 28 comprises an overhanging lower toothed portion ,32 having teeth 33. The teeth 33 have horizontal lower. The teeth are positioned to .face each other and to be in. spacedapart relation. As shown in Figure 1, it will be' seen that the-oppositelvcoacting teeth 33 on opposite jaws 28 have sides which lie in the same.

faces and inctined sides.

' horizontal plane and, have downwardly converging sides so as tocause the teeth to feed one-way. in-a downwarddirection.

.In the lowered position shown in Figure 1, the

upper-ends of the gripping and feeding jaws .28

are in spaced. relation with'projections or lugs 34 extending from the legs .2] cf the frame l3.

The lower faces of the teeth .33 of the opposite.

jaws 28 arein alinement in horizontal planes.

For the efficient feeding of fibrous material to the nozzle 38, the jaws 28 must'be moved into maximum spaced-apart or open relation when moved away from the nozzle to the vicinity of the hopper 40. The jaws must be' moved into closest relative position when moved to the nozzle.

Figure 4 is a front elevation of an enlarged fragmentary portion of :fixed cam mechanism which causes lateral movements 'of the feeding jaws 28. The cam mechanism 45 comprises a rectangular plate 46 having an endless groove orguideway 41 formed'th'erein. The groove 4? has two vertical portions 48 and two inclined portions 49 which are connected at their'upper" and lower elevations by circular'groove portions 50. Each guideway receives aroller carried by an actuating arm 52. The arms 52 are at tachedto the feeding jaws 28 and are caused by the guideways 4] to move toward each other when in lower position and awayfrom each'other when in upper position.

'It is to be noted that the equal'length links 30 causethe feeding jaws 28 to move in parallel relation. w 1

As shown in Figure 3, the mounting plate 'H has apertures :55 servin to receive bolts 58 upon which are mounted a plurality of'the fixed cam plates 46. The cam plates 46 are mounted in spaced-apart relation by bushings 51. The bush ings 51 are of suitable thickness to provide clearance space so that the actuating arms 52 may freely move between the cam plates 46.

It is to be noted that each roller 'Sl'is of a diameter permitting rotatable contacting relation within one of the guideways 41. In operathan, when the roller 5l reachesthe lower curved end 50 of the guidewayit contacts a vertically movable pawl 59 which is resiliently pressed in 4 The springs l5 then raise the fram 13 to its uppermost position.

It is to be noted that the fixed cam mechanisms function when the gripping and feeding jaws 28 are in their lowermost position to permit the springs 15 to raise the frames 13. The fixed cam mechanisms 45 also function when the frames l3 are in their uppermost position to permit the cams tolower the frames.

It is also to be noted that the filling machine 10 comprises suction means (not shown), which in practice is suitably connected to pipes or conduits 65, through which suction is brought to bear on the machine in from opposite sides. The conduits are adapted to be connected to suction creating means.

It is also to be noted that the pipes connect with apertures 66 at the mid-portion of the machine and between the grippin and feeding jaws 28. Screens 61 aresuitably fastened in the apertures 6 6, to'prevent the filling material from being sucked into the" pipes 55.

The gripping andfeeding jaws 28 feed successively'into" the duct 3'! and into a casing such as a dolls leg 58.

In accordance with the patent statutes I have describedand illustrated the preferred embodiment'of'my invention, but it will be understood that various changes and'modi'fications can be made therein without departing from the spirit of' the invention as defined by the appended claims.

IcIaim: v I

1. In a reciprocable gripping and feeding mechanism for fibrous material, a mounting plate, an inverted l J-'shaped frame slidably mounted on said plate and having upright arms, a cam in operative engagement with said frame for moving said frame downwardly, spring means for raising: said frame When'release'd by said cam,

bars respectively carried by two links pivotaily mounted on each arm of' said frame, said bars and said arms comprising jointed structures of parallelogram formation whereby said bars are constrained to move parallel to said arms, vertical guideway means for maintaining the parallel relation of said bars during the downward and upward strokes, the distance between said bars being'varied at the uppermost and lowermost ends the direction of the guideway by'a coil spring 60;

The portion of the pawl 59" which extends into the guideway is angularly directedto permit the roller 5! to continue its motion through the guidei way 50. When the roller 5| reaches the angularly directed portion of the pawl 59 it-forces the pawl out of the guideway against the'pressureof the spring 68. When the roller 5! passes the iwl 5 9, the pawl is pushed by the spring into the guideway and contacts the roller and prevents This arrangement limits the movements or the pawl '59 into and outer the guideway 41;

It is to be noted that the filling machine 1 t1 contains four" identical inverted'u shaped frames v l3,.each frame havingan elongated-extension '25.

The fillin machine contains'four identical earns 20 and eight fixed cam mechanisms 45.

In operation, when the highest point of a cam 20 reaches the contact point on one of the resil iently supported frames 13 the frame is then in its lowermostposition and is suddenly released.

, mounted on each arm of said frame, said bars" of each stroke, said bars having feeding jaws at their lower portions, said jaws having alined feeding teeth, each of said teeth having a horizontal side and a downwardly converging side, said teeth being adaptedto feed only in a downward direction, and a nozzle mounted on said plate andv in 'alinement with said feeding jaws, said mechanism comprising separate cam means for varying the distance between'said bars and arms.

2. In a reciprocable gripping and feeding mechanism for fibrous filling material, a mounting, a houing secured to said mounting, an inverted U-shapedframe slidably mounted in said housing and having elongated arms, a cam in op erativeengagement with 'said frame for moving said frame in feeding direction, spring means for returning said frame when released by said cam, bar'srespe ctively carried by two links pivotaliy and said arms comprising jointed structures of parallelogram formation whereby said bars" are constrained to move parallel tosaid arms, vertical guideway means for maintaining the parallel re-' lation of said bars duringthe downward and upward strokes, the distance between said bars be ing varied at theuppermost and lowermost ends REFERENCES CITED The following referenlces are of record in the file of this patent:

5 UNITED STATES PATENTS Number Name Date 520,881 Hagen June 5, 1894 686,071 Hogg Nov. 5, 1901 829,738 Robinson Aug. 28, 1906 2,269,722 Lakso Jan. 13, 1942 2,347,431 Pauly Apr. 25, 1944