US2152571A - Closure applying apparatus - Google Patents

Description

March 28, 1939. c. F. SCHMIDT vCLOSURE APPLYING APPARATUS 2 Sheets-Sheet 1 Filed Sept.- 30, 1937 INVENTOJFV (liTchmidt, flnv 7 y A NEKS March 28, 1939. c. F. SCHMIDT 2,152,571

CLOSURE APPLYING APPARATUS Filed Sept. 50, 1937 2 Sheets-Sheet 2 a -Z w 27 Jr A I L 29 6.3 I I] 26 a? W uuuunu Ill) 42 f H 36 r i '5 "I G 17 s 33 I .36

11v VENQTOR -1 3010210215,

Patented Mar. 28, 1939 CLOSURE APPLYING APPARATUS Charles F. Schmidt, Toledfi, Ohio, assignor to Owens-Illinois Glass Company, a corporation of Ohio Application September 30, 1937, Serial No. 166,669

2 Claims.

The present invention relates to improvements in apparatus for applyingmetal closures to bottle necks, jugs, jars, and like receptacles by a spinning process in which the lower marginal regions of the depending attaching skirt are spun beheath an external bead or flange provided on the neck of the receptacle.

The principal object of the invention is to provide a closure applying apparatus which is relatively simple in its construction and which therefore may be manufactured at low cost; one which is simple in its operation and which therefore does not require the services 'of a skilled operator; one which is rugged and durable and which therefore is unlikely to get out of order; and one which will effectively, dependably and uniiormly apply the closures to the receptacles.

Another object of the invention is to provide an apparatus for applying closures to receptacles which will operate emciently regardless of any irregularities that may occur on the bottle necks or regardless of the fact that occasionally some of the bottle necks may be slightly out-of-round.

Other objects of the invention, not at this time enumerated, will become apparent hereinafter.

In the accompanying drawings:

Fig. 1 is a vertical sectional view taken centrally through an apparatus constructed in accor ance with the principles of the present inventi and showing the same operatively associated with a jug to which a closure is to be applied;

Fig. 2 is a sectional view taken substantially along the line 22 of Fig. 1;

Fig. 3 is a sectional view similar to Fig. 2 with the parts thereof in operative spinning position;

Fig; 4 is a sectional view taken substantially along the line 4-4 of Fig. 1;

Fig. 5 is a vertical sectional view taken centrally through the apparatus at right angles to the section plane of Fig. 1 with the parts thereof in operative spinning relation;

Fig. 6 is a sectional view taken substantially along the line 6-6 of Fig. 4;

Fig. 7 is a sectional view taken substantially along the'line l'| of Fig. 6;

Fig. 8 is a sectional view taken substantially along the line 8-8 of Fig. 7;

along the line 9-9 of Fig. 1; and

Fig. 10 is a fragmentary side elevational view, diagrammatic in its representation, of the closure applying apparatus showing the same operatively associated with a conventional type of drill press.

Referring particularly to Figs. 1, 5 and 10, a receptacle in the form of a jug J having an en- Fig. 9 is a sectional view taken substantially larged reinforcing head It providing a shoulder I l at its neck portion is adapted to have a closure C applied thereto, in the relation shown particularly in Fig. 5. That is, by the means hereinafter described, the closure C, being prevlo1 sly placed over the mouth of the jug J, is forced downwardly against the rim of the jug while the lower edge of the closure skirt is spun inwardly beneath the shoulder I i to retain the closure C on the jug.

The apparatus involves in its general organizatlon'a cylindrical casing [2 (Figs. 1 and 5) which is open at its lower end and which is, provided at its upper end with a boss l3 provided with a socket M therein designed to receive the lower end of a spindle it": which is carried by the chuck it of a rotary press P which may, for example, be a conventional type of drill press having a support S for the jug J. An apron l'l' which is somewhat of a bell-shape design and having slots 24 therein is secured to and suspended from the lower open end of the casing i2 and extends downwardly to enclose the operative spinning instrumentalities of the apparatus.

The cylindrical casing l2 provides a cylinder it in which there is slidably mounted a two-part hollow inner casing consisting of a casing proper it and a closure 2| for the upper end thereof which is secured thereto by means of securing screws 22. Lugs (Fig. 9) extending upwardly from the closure 2| slidably extend between lugs 33% formed on the casing I2 to prevent relative turning movement between the casing i9, 2| and the casing B2. The casing l9, 2! provides a chamber 23 in which are housed the operating instrumentalities for the spinning mechanism now to be described.

The spinning mechanism just referred to consists of a plurality of spinning disks D (Figs. 5 and 6) which are supported at the lower ends of respective depending supports or carriers 25. The supports 25 are mounted for swinging movement toward and away from the neck of the jug J about the axes of respective shafts 26.

slidably disposed a slide member 34 provided with means of a coil spring 28, and a 'ie rod 29 extending through the'r'nember 24 and casting 22 determines the limiting position of the former.

An adjusting nut 4l and-lock nut 42 permit the, tension of the coil spring 28 to be adjusted in order that the proper flanging of the disk D against the neckof the Jug J may be attained. It will be seen that when the disk D 1 is in spinning contact with the skirt of the closure 0 on the Jug J, any irregularities in the contour of the bottle neck or any out-of-roundness thereof will be automatically compensated for inasmuch as the slide member 24 will yield in the slideway 83.

Referring now to Figs. 1 and 5, the operating instrumentalities for thespinning disks D include the torque applying members 28, which are mounted on their respective shafts 2tand which are in the form of castings in which rollers 43, eccentrically disposed with respect to the shafts 28, are rotatably supported. Compression springs 44 anchored on the casing I! bear against the members 28 and normally urge the same inwardly of the casing, thus applying torque to the shafts 26 in order to swing the supports 25 and disks D carried thereby outwardly to inoperative positions. The slots 24 in the apron I! provide a clearance for-the supports 25 in their inoperative posi tions.

In order to hold the closure C firmly upon the Jug J during the spinning operation, a pressure chuck 45 having a recess 45 therein designed to fit over the top of the closure C and provided with an internal shoulder 41 adapted to bear .downwardly against the periphery of the closure top is rotatably suspended from the lower end of a shaft 48 and is retained thereon by means of a cap screw 49. An anti-friction thrust bearing 5| occupies a position between the chuck 45 and a pressure plate 52 secured to the shaft 48. The upper end of the shaft 48 is threadedly received in an internal boss 53 formed on the casing I9 and a spanner nut 54 serves to retain the shaft therein in any desired positionoi adjustment.

A hollow expansion plunger 55 is provided on its lower end with a downwardly directed inwardly tapering cam surface 55 which is adapted to operatively engage the torque applying members 28 and move them outwardly. The plunger is telescoped over the boss 53 and is normally maintained in elevated position by means of a compression spring 56 disposed within the same. The upper end of the plunger 55 is centered in the casing l2 by means of an extension or centering pin 51 which extends through a bushing 58 provided on the boss I3. An anti-friction thrust bearing 59 is centered on the pin 51 and is disposed between the casing l2 and the plunger 55.

A compression spring 60 surrounds the plunger 55 and operates to normally maintain the inner casing I 9, 2| extended from the cylinder l8. Additional compression springs 6| mounted on tie rods 62 aid in maintaining the inner casing l9, 2| extended from the cylinder l8, while adjusting nuts 63 threadedly received on the tie rods 62 ad,- justably limit the extent to which the casing i9, 2| may be extended from the cylinder It. A pair of abutments 84 carried bythe casing clmurell are adapted to en age the'lower ends of apnir of 'limitstopsllwhichareintheformcfsdiusting bolts that extend through the casing l2.

In the application of the closures C to the in: I

J, a mg is positioned beneath the apparatus on the supports and a cap is placed over the filling opening thereof. The operator of the apparatus depresses the usual operating lever. of the drill and lowers the chuck It, together with the. entire rotating apparatus. The holding chuck 45 engages the closure-C. By virtue of the antifriction thrust bearing ii, the .frictional engagement of the chuck .45-with the closure C causes the former to come to rest while the remainder ofthe apparatus continues to rotate. 'Ihe compressionsprings 58, t0, and BI yield'simultaneously and the casing l8, 2| moves into the cylinder II which descends thereon. Upon descent-of the casing l2 and apron II, the plunger 55 moves downwardly on the boss 52 and the cam 55' engages the rollers 43, thusmoving the torque applying members 28 (Fig. 4) outwardly against the compression of the springs 44. Torque is applied to the shafts 26 and thus the supports 25 and disks D'carried thereby are moved inwardly so that the disks D engage'the lower marginal region of the closure C to spin the same underneath the shoulder ll provided by the bead II on the neck of the jug J. Upon raising of the chuck It, the various instrumentalities are,returned to their normal inoperative positions by virtue of the com pression springs 58, 60, and 5|.

It is to be noted that should the neck of the jug J be slightly out-of-round, orshould'any irregularities occur therein; the slide member 24 will yield. By means of the adjusting nut 4|, the operator may adjust the tension of the spring 24 so that the disks D will properly follow the contour of the neck of the jug J.

Modifications may be resorted to within the spirit of the appended claims. I

I claim:

1. A closure applying apparatus comprising a casing providing a cylinder, a second casing slidably disposed within said cylinder and extensible therefrom, means normally maintaining said second casing extended from the cylinder, a chuck carried by said second casing and movable therewith, a shaft extending through said second casing eccentrically of the chuck, spinning means carried by said shaft eccentrically thereof andmovable toward and away from said chuck upon turning of said shaft, a torque applying member mounted on said shaft within the second casing, a plunger connected to said, first mentioned casing for movement therewith relative to the second casing and extending into said latter casing, said plunger having a cam surface thereon designed for camming engagement with said torque applying member, and means for rotating said first mentioned casing.

2. A closure applying apparatus comprising a supporting casing providing a cylinder, a second casing slidably disposed within said cylinder and extensible therefrom, means normally maintaining said second casing extendedfromthecylinder, means for retaining said casing against away from operative engagement with said closure and bottle upon turning of said shaft, a torque applying member mounted on said shaft within the second casing, a plunger eonnected to said first mentioned casing for movement therewith relative to the second casing and extending into said latter casing, said plxmzer having a cam surface thereon designed for camming engagement with said torque applying member. means for imparting vertical and rotary movement to said first mentioned casing, and a. hood attached to said casing and enclosing said spin- 5 ning means.

CHAS. F. SC.

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