US947685A

US947685A - Can-cap-placing machine.

Info

Publication number: US947685A
Application number: US48554609A
Authority: US
Inventors: William G Palmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-03-24
Filing date: 1909-03-24
Publication date: 1910-01-25
Anticipated expiration: 1927-01-25

Description

ATTORNEYS s SHEETSw-SHEET 1.

l/VI/E/VTOR 1 7 I [w/JW Patented J'an.25,1910.

JF u/J W. G. PALMER.

CAN GAP PLACING MACHINE.

APPLICATION FILED MAR 24, 1909 m m W W. G. PALMER.

CAN GAP PLACING MACHINE.

APPLIGATION FILED MAR. 24, 19 09.

3 SHEETSSHEBT 2.

Fig- Q I l i l I" a o II a 9 Q Q n. g G I. g E) I I WITNESSES I //VVE/VTOR 0M gt ab I 7, BY :z

ATTOR/VE VS W. G. PALMER. CAN GAP PLACING MACHINE.

APPLICATION FILED MAR.24, 1909. 947, 5 v Patented Jan. 25, 1910.

3 SHEETS-SHEET 3.

I: ill

VIIlIIII/IlIIlIlIIlI/l WITNESSES l/vr/E/v'mlz ATTORNEYS WILLIAM G. FAJLMER, 0F HART, MICHIGAN, ASSIGNUR 0F ONE-ALF T0 WILLIAM R.

ROACH, 0F HART, MICHIGAN.

CAN-CAP-PLACING MACHINE canoes.

Specification of Letters Patent.

Patented Jan. as. rain.

Application filed March 24, 1909. Serial N0.'A85,546.

The object of my invention is to devise a piece of apparatuswhich' shall automatically transfer the caps from a cap-magazine and place them in proper posltlon' on the cans, thus dispensing w1th hand labor.

To this end my invention comprises a capmagazine, a reciprocating ejector for withdrawing the lowermost of a stack of caps from the magazine and sliding it onto a captrack, a propelling device for movin the caps along the cap-track, and an inc ined track-end for uiding the cap upon the top of the can winch is being carried along below the track -end by the can -conveyer whereupon, on the forward motion of the can, the can-aperture flange gradually draws the. cap into registering engagement therewith. 3 In the drawings,Figure l is a plan of my apparatus; lug. 2 is a sectional detailv showing an arm carrying a weighted cappropeller; 3 is a horizontal plan View,

partly in section on a plane taken below the bed plate of Fig. 1.; Figs. 3 and 3* being details; Figs is an end elevation of the cap-magazine; Fig. 5 is a detail of the can- 'conveyer; Figs. 6, 6- and 7 show longitudinal central sections through the ejector for ithdrawing caps from the magazine; and

Figs. 8,9 and 10 showsectional details illustrating the transfer of the caps from the inclined track-end to the aperture.

l: shall first describe the ejector mechanism for withdrawingfthecaps from the capmagazine. Referring to Figs. 6 and 7, there is a frame A. in which the slide A reciprocates, a screw A being provided to adjust the extent of motion. The slide A carries a hinged and spring-pressed ejector A sup-- plied with a cam A which camcooperates ejector-point A, against the tension of the portion A.

spring A below the surface of the guiding frame. The ejector-lever A lies in the direction of motion of the slide, in which position it obviously acts more efliciently than if .it were mounted at right angles to or across this direction of motion. Stated differently the axis upon which the lever is hinged is at rightangles to the direction of reciprocation of the slide. The magazine A which may be made tall enough to -hold any convenient number of caps, has a slot A wide enough to permit a single cap to be drawn therethrough. But in order to prevent any jamming of the caps, I mount a hinged stop A tensloned by the spring A, upon the capma azine and arrange it so as to contact wit 1 the ed e of the cap above the bottom cap, thusho ding it in place while the lowest cap'is being withdrawn. A weight-actuated stopmight obviously be substituted for the spring-actuated stop A The operation of the cap-ejector will now be :clear. When the slide is in the position shown" in Fig. 6,. the ejector-point takesunder the inneredge of the cap, being forced above the general surface ,of the ejector-frame A by. the spring A. The slide A being moved to the I'lglilli, the lowest cap of the magazine is drawn through the slot A out upon the surface of the frame A. When the position indicated in Fig. 7 is approached, the depressin stop A", acting against the cam A, forces t e lunged ejector A -dewn against the tension of the spring A to withdraw the ejector-point A from contact with the cap. The cap thus lies upon the frame A, ready to be moved onto the cap-trackby the cap-propelling devices. At the instant the lowest cap is being withdrawn from the cap-magazlne, the inclined edge of the lo cap forces the superposed stack of caps remain ng in the magazine up by a small amount. The hinged stop A however, keepscontact with, the second or superposed cap, rotating a trifle u on its hinge for this purpose. This action is illustrated in Fig. 6"". The result ma be'efi'ected by providing'the end of the inged stop A with a vertical portion A for engaging;

withthe second cap and with an incline The sliding lowermost cap by contact with the inclined portion A", exerts a force which swings the stop A upwardly upon its hinge and thus permits the vertical portion A to remain in contact with the superposed cap in its upward tilting motion. The withdrawal of. the bottom cap from the magazine has a tendency to leave .the two or three'lowest caps remaining in the magazine in a position in which they do not lie accurately superposed.- To rectify this, I provide the pair of abutments A (Figs. 1 and 3 upon the slideA. The

motion of the slide toward the. magazine flanges B fastened upon the base plate,

' the which flanges in the preferred form are circular and may overhang the edges of the cap to a trifling extent .to steady its motion. At the end of the track, there 'is secured a track-end B which, as shown in Figs. 8, 9 and 10, is preferably inclined and which may be made of sprin metal or hinged. Th1s track-end may be adjusted to just clear ath of the cap-top or to be in actual yielding contact'therewith. The caps are propelled along the track by the propellingarms C, of which four are shown 1n the present instance, which propelling-arms are hin ed to a sleeve C mounted on the power sha t D, a weight C being secured to each hinged arm C to ive it a downward bias and a propeller having a propelling oint C bein fastened upon the end of the iiin ed arm in the manner shown in Fi 2. anifestly the point C may be ma e heavy enough to dispense with the weight C There 1s a cam-track C which is a device for disengaging the propeller from thecap by raising t e propelling-point upward out of contact'with the cap at the appropriate time. The track also prevents the propeller from dropping into'a slot shown in the bed plate at this point.- A similar track C accomplishes a similar purpose at the opposite side of the machine.

It will be" evidentthat when the ejector has withdrawn a cap from the magazine and hasplaced it at the entry of the trackflanges B aS shown in dotted lines in Fig. 1, thepro eller-point C. will contact with the back e geof the cap and move it along the track between the'cap-track flanges B and toward the inclined track-end B The action by which the cap takes its place in the can-groove surrounding the can apershaft, to which hinged propeller-arms are secured, moves in synchronism or in time with the can-conveyer, by means described later on. The propeller-arms and cans must thus move together. i The cap is moved to a point at which its front edge projects slightly beyond the inclined track-end B and into the path of the can-aperture flange E-'. This can aperture flange E i will be understood, is, the circular flange hich surrounds the central can aperture and which, as cans are now made, is itself surrounded by a groove in which the circular cap-edge fits when the can is capped. The timing of the parts, in case a can having a raised rim E is employed, is such that the front edge of the cap first strikes the top of the can E at a point between the raised rim E and the can-aperture flange E is used on the can, it will manifestly suflice to have the front edge of the cap get into the path of the can-aperture flange Efl some time before this has passed. Further motion of the can to the right, in Fig. 8, is preferably unaccompanied by any forward motion of the cap which may be accomplished by placing the cam 0 so that it now comes in action and raises the propelling point C out of contact with the rearedge of the cap. It results that forward motion of the can, the cap being stationary or moving more slowly forward than the can, brings the can-aperture flange E in contact with the forward cap-edge. Continued forward motion of the can thereupon draws the cap forward with the can.- In fact the cap gradually moves into and registers with thecan-groove which defines the can aperture, all sudden or falling motions of the cap being largely avoided. A stationary spring finger C is provided to prevent the cap from accidentally flipping upward. This finger also exercises a downward pressure when the cap, in its inclined position of Fig. 9,, is being drawn forward by the can. In this way more effective registration of cap and can is secured. Furthermore if a cap happens to be upside down from false stacking in the magazine, the canaperture flange will not engage the capedge so that the cap will not register with the can-aperture. In this case the springfinger C may be positioned to dislodge the If no raised rim E.

cap from the can and the operator will be d the conveyer.

The means for rotating the power shaft D 1n synchronism or in time with the capconveyer consists in a star wheel D, shown in full lines in Fig. 3 and in dotted lines in Fig. 1. This star wheel is secured to the shaft D and is rotated by the cans on the conveyer. The cans in their forward mot1on push agamst the points of the star wheel to rotate the star wheel and the shaft eaaeea D to which it is secured in synchronism with which a reciprocating motion is conveyed to the slide A offthe ejector mechanism. This consists of a four armed cam F, Fig. 2, sef curedflt o the power shaft D. I The cam-arms operateagainst a pin F mounted upon an arm F which is hinged to the base plate of the machine at F, Fig. lyand 'WlllCl'l has formed therein a slot F, at the end opposite the hinge, cooperating with the in A upon the slide A". A helical spring 5 is secured to the machine frame and the hinged-arm F to secure the return motion of the slide A toward the cap-magazine.

The operation of the slide operating means a can-conveyer, a cap-magazine, a cap-meetwill now be understood. The rotation of the power shaft D rotates the cam-arms-which, acting against the pin F turn the hingedarm F on its hinges downwardly in Fig.

The slotted end 0 the'hing ed arm F in its downward motion carries with it the in A and consequently the slide'A to which gradually draws the cap into registering eng gement therewith, substantially asdescribed. f

2. A can-cap cent to the path of the can-top, a stationary ward cap-edge beyond the track-en the path of.the passing caneaperture flange,' whereby the can aperture flange gradually finger at the track-end,'and a propeller in time with tlie conveyer for movin the forand into draws the ca into registering engagement therewith, substantially as described.

- 3. A can-cap placing machine comprising a can-conveyer, a yie d end adjacent to the path of the can-top, and.

a propeller in time with the conveyer for moving the forward cap-edge beyond the track-end and into the path of thepassmg can-aperture flange, whereby the can-aperplacin machine com rising, a can-conveyer, an inc med track-en ad a mounted on the sha ing, inclined tracksubstantially as described.

device for disengaging the propeller from the capi whereby the can-aperture flange gradual draws the cap into registering engagement therewith, substantially as; descr bed. p

' 5. A can-cap placin machine comprising a can-conveyer, a trac -e'nd adjacent to the path of the can-top, an upwardly movable propeller in time wlth the conveyer for pro .jecting the cap-edge beyond the track-end and into the path of the assing can-aperture flange, and a cam-trach for disengaging the propeller from the cap, whereby the canaperture tiange gradually draws the cap into registering engagement therewith, substantially as described.

6. can-cap placing machine comprising ing device therefor, a stationary, circular cap-track upon which the caps slide flatwise, and-arotary propeller for sliding the caps from; their ejected position in front of t e cap magazine along the circular cap-track and over the can-conveyer, substantially as described. i

- A can-cap placing machine comprising a can-conveyer, a stationary, circular cape track, upon which the caps slide flatwlse, a

cap-magazine provided with a cap-ejecting device a rotary, hinged ropeller concentric with the circu ar track or sliding the ca s from their ejected position in front of t e cap-magazine along the circular cap-track and over the can-conveyer, and a device for disengaging the hinged propeller from the cap, substantially as described.

ice

8. A cancap placing machine com rising a can-conveyer, a circular cap-track aving atra'ck -end, a cap-magazine-provided with a cap-ejecting device, a shaft'concentric' with the track carrying a star wheel for enga e-' .ment with the cans and a cap-propel er it, substantially. as described.

9. A can-cap placing machine comprise 'ing. a can-conveyer, a cap-track having a track-en d, a cap-magazine provided witl a reciprocating cap-ejecting device, a cap-' propeller, a power shaft, a cam mounted thereon, and-a hinged arm connected with the reciprocating. caprejector and operated. by the cam, substantially as described. 7

10. The combination of a can-cap magazine, a reciprocating slide and a springpressed ejector-lever having its axls at right angles to the reciprocation of the slide, tor-contacting with the edge of the can-cap to remove it from the 11. The combination of a can-cap magazine, a reciprocating slide, a spring-pressed ejector-lever having its axis at right angles tojthereciprocation of the slide, and a projecting point on the lever for contacting with the inneredge ot the can-cap to withmagazine,

- pressing stop to withdraw the lever from contact with the cap upon its removal from the magazine, substantially as described.

13. The combination of a can-cap maga-- zine carrying superposed caps, a reciprocating slide carrying an ejector for the bottom cap, and ayieldlng stop coacting with a superposed cap, substantially as described.

14. The combination of a can-cap magazine carrying superposed. caps, a reciproeating slide carrylng an ejector for the bottom cap and a yielding stop having a portion coacting with the first superposed cap and an inclined portion coacting with the cap to be withdrawn, substantially as described.

15. The combination of a can-cap. magazine carrying superposed caps, a reciprocatin slide a s rin ressed e'ector cari ried thereon for contacting with the inner edge of the can-cap, and an abutment carried upon the slide to force the lower cap or caps into proper position, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM G. PALMER.