US2104224A

US2104224A - Can heading machine

Info

Publication number: US2104224A
Application number: US4299A
Authority: US
Inventors: Adam J Fisher
Original assignee: International Patents Development Co
Current assignee: International Patents Development Co
Priority date: 1935-01-31
Filing date: 1935-01-31
Publication date: 1938-01-04
Anticipated expiration: 1955-01-04

Description

A. J. FISHER GAN yHEADING MACHINE Filed Jan. 31. '1935 s sheets-shew 1 Jan. 4, 1938.

rneys.

Jan.4,1938. AQJ. HSHEB v 2,104,224'

om HEADING MACHINE Filed Jan. s1, 1955 s sheets-sheet 2 I L l 5: n E Jij l Mg l |y Il jg '336. m:

nder-L15 dam ffl? vlJan. 4, 1938. Y A J, F|5HER I 2,104,224 I CAN HEADING MACHINE Filed Jan. s1; 1935 s sheets-sheet s Patented Jan. 4, 1938 UNITED STATES CAN HEADING MACHINE Adam J. Fisher, Palisades Park, N. J., assgnor` to International Patents Development Company, Wilmington, Del., a corporation of Delaware Application January 31, 1935, Serial No. 4.299

7 Claims.

This invention relates to can heading machines, and a primary object of the invention is to provide improvements for insuring accuracy in the application of the flanged heads of the cans to the can bodies.

A further specific object of the invention is to provide an improved can heading machine which makes it practicable to apply to can bodies, head members having anges which stand substantially at right angles to the disc portions of the heads instead of having the flanges oblique or ared as has been customary. With right angle anges the iit of the heads on the can body is closer and more secure, less solder is required and leaking joints are practically eliminated.

With these objects in View, the machine, according .to the present invention, is provided with means for producing suction on the can heads which holds them against the movable members by which the heads are brought to and forced upon the ends of the can bodies.

The invention is illustrated in a preferred embodiment in the accompanying drawings, wherin: l

g5 Fig. 1 is a longitudinal, vertical sectional view through the heading machine, improved in accordance with the present invention.

Fig. 2 is a side elevation of the machine.

Fig. 3, a vertical, sectional view on line 3-3 of Fig. 1.

Fig. 4 is a sectional view on line 4--4 of Fig. 3.

Fig. 5 is a plan view of the right hand can head and body supporting member shown in Fig. 4.

Fig. 6, a vertical, sectional view on line 6-6 of Fig. 1.

Fig. '7, a similar View on line 1-1 of Fig. 1, looking in the opposite direction.

Fig. 8, a sectional view on line 8-8 of Fig. 6; and

Fig. 9 is a sectional view on line 9-9 of Fig. 6. The can heading machine to which, for the purpose of illustration, the improvement of the present invention has been shown as applied, in the drawings, is a machine of known type. Gen- 45 erally speaking, it consists of a horizontal rotating shaft to which is iixed a structure for supporting, in circular arrangement, a plurality of can bodies, indicated in the drawings by the letter A, and can heads B, B' which are to be ap- 50 plied to the bodies; this structure comprising a l plurality of pairs of supporting or heading members, the members of each pair being movable toward each other, one pair operating after another toforce the flange can heads upon the ends of the body being then moved away from each other to release the cans one after another for discharge from the machine. As this much of the'machine is in common use, in order to simplify the drawings, certain parts of the apparatus, such as the means for feeding the can elements to the machine and the means for holding them in the machine have been omitted from the drawings.

1 Referring now to the drawings, I Il designates the main shaft of the machine which is mounted in bearings II, I I on the uprights I2, I2; is provided with collars I3, I3 to prevent end movement of the shaft; and is rotated by suitable gearing, one gear I4 of which is shown in Figs. 1 and 2.

'I'he kstructure for movably supporting and assembling the can elements comprises a plurality of pairs of heading members I5, the drawings showing ve such pairs (Fig. 3). The number might be larger or smaller. Each of said members has attached thereto, by set screws I6 (Fig. 3), a pair of push rods I1', I'l which extend slidably through openings in the guide collars I8, I8, I9, I9 rigidly secured to the-shaft I0. 'I'he rods of each pair are secured to a cross-head 20 and the several crossheads are provided with rollers 2l. The rollers 2I extend into

box cams

22, 22, the ve rollers on one side of the machine into one cam and five on the other side into the other cam; the cams being carried on vertical supports 23. The

cams

22, 22 are so formed that as shaft IIl revolves (in the direction of the arrow, Fig. 1) the heading members I5 of the several pairs of heading members are moved toward each other, successively, to force the heads on the can bodies.

The can bodies and heads are fed into the machine and are held in place by known means (not shown). The heads instead of being provided vvith flared anges, a construction required in some capping machines, are formed with flanges b which are substantially at right angles to the disc portions of the heads. When the heads have been forced upon the bodies, the asof known construction. Some difculty, however, has been experienced in bringing the can heads into accurate engagement with the bodies.

The can heads are flanged and are intended to make a close fit with the bodies. It sometimes happens that a slight tilting of the head or other inaccuracy in the position of the can head on the heading member will result in the failure of the head to be driven properly on the body with possible crushing of the can elements.

To obviate this evil the present invention provides means for holding the can head against the plate portion 2 4 of the supporting member I5 during the movement of the heading members toward the can body. To this end, each of the members I5 is formed with a duct, 28. opening through the face of said member at 29 and terminating at the other end' in a nipple 30 for a flexible hose 3| which is connected to a pipe 32 (Figs. 1 and 2) that leads to a duct 33 in a valve element 34 secured to a collar 35 fixed to shaft I0 (Figs. 6 to 9). It will be understood that each of the five can heading members I5 on each side of the machine is thus connected to the rotating valve element 34, there being two valves, one at each end of the shaft I0 (Figs. 1 and 2). Bearing against the outer face 36 of the rotating valve element 34 is a non-rotating valve element 31 of arcuate shape (Fig. 7) to which is secured a guide stud 38 extending through an opening 39 in a plate 40 (Figs. 8 and 9) secured to the upstanding iiange 4I of an angle bar 42 which is fastened to a seat member 43 on the bearing Il for the shaft i0. A spring 44 is interposed between the non-rotating valve element 3l and plate 40 which keeps the valveelements in contact with each other. The valve element 3l is formed with a duct 45 to which is screwed an e1- bow-shaped nipple 48 (Fig. 8) for a hose M which latter is connected to a vacuum pump or other source of low pressure. The inner face of valve element 3l is provided with an arcuate groove d3, forming a part of the duct 45, with which groove the five ducts 33 in the valve element 3d are adapted to register as the shaft l@ rotates. These ducts are so positioned and the groove t8 of such length that, in the case of each of the nve heading devices (each pair of members i5) the suction is applied to the outer face of the head as soon as the head has been put in place in member i5, and this suction is maintained during the operative or inward movement of the heading members, the duct 33 passing over the end of the extension groove ttl of duct Q5 at the completion of the heading operation. If desirable for mechanical reasons there might be two ducts d5, one'closer to the axis than the other, and alternate ducts arranged-to come into register with `the ducts d5 respectively. The ends of ducts 33 after leaving groove @d pass over a vacuum releasing groove or port d@ (Fig. 7), which breaks the vacuum against the can head, in each case, before the heading member begins its outward movement. Preferably the valve member 3l is formed with pocket k5@ for absorbent material which receives oil through oil opening 5I. For the purpose of adjustment, the plete. 40 is secured to the angle bar 42 by bolts 5i which extend through arcuate slots 53 in the flange 4I of the angle bar.

The can head, it will be observed, is held at the bottom (referring to the position of the head when rst fed into the machine) by being seated in groove 26 (Fig. 5). The vacuum is applied, preferably, at the opposite edge of the head, as shown in Fig. 4, so that the head is accurately positioned on the heading member and is held in this position during the heading operation.

It is realized that this invention could be made applicable to can heading machines of different construction from that shown; and the invention is to cover all embodiments and modifications of the invention within the scope of the appended claims.

I claim:

1. In a can heading machine, the combination of a rotating shaft; can supporting means on the shaft and rotatable therewith comprising a supporting abutment member for one end portion of the can body and a heading member for supporting the other end of the can body and thehead to be applied thereon, there being a vacuum duct opening through a portion of the heading member in close relation to the can head supported thereon; a valve element having a, fixed position on said shaft and rotatable therewith'and formed with a vacuum duct; a tubular connection between said last named duct and the vacuum duct in the heading `member; a non-rotating valve element arranged against the rotating valve element and having an elongated vacuum duct with which the duct in the rotating valve element registers during a predetermined rotational movement of said shaft; and means for moving the heading member lengthwise of said shaft, during the registry of said vacuum ducts of said valve members, to force the can head upon the can bod 2.y In a. can heading machine, the combination of a rotating shaft; can supporting means on the shaft and rotatable therewith comprising a supporting and abutment member for one end portion of the can body and a heading member for supporting the other end of the can body and the head to be applied thereon and movable lengthwise of the shaft, during a partial rotation thereof, to force the head upon the can body,

there being a vacuum duct opening through a to the can head supported thereon; a valve element having a hxed position on said shaft and rotatable therewith and formed with a vacuum duct; a tubular connection between said last named duct and the vacuum duct in the heading member; a non-rotating valve element arranged against the rotating valve element and having an elongated vacuum duct with which the said duct in the rotating valve element registers during a predetermined rotational movement of said shaft and formed also with a vacuum releasing port over which the end of the duct in the rotatable valve element passes after passing said elongated duct.

3. In a can heading machine the combination of a rotating shaft; can supporting means on the shaft and rotatable therewith comprising a supporting and abutment member for one end portion of the can body and a. heading member for supporting the other`end of the can body and the head to be applied thereon, there being a vacuum duct opening through a portion of the heading member in close relation to the head supported thereon; a valve element having a fixed ing a partial rotation thereof; and means for moving said heading member lengthwise of said shaft, during the registering of the vacuum ducts oi said valve members, to force the can head upon the can body.

4. In a can heading machine, revoluble can supporting means comprising a -supporting and abutment member for one end portion of a can body and a heading member for supporting the other end of the can body and the can head to be applied thereon, there being a groove in the heading member to receive the lower edge portion of the can head and there being also a vacuum line opening through a face of the heading` member against 4which face the can head is adapted to bear, and means interposed in the vacuum line for making and breaking vacuum connections in that portion of the line which opens through said face of the heading member so as to hold a can head against and subsequently release it from said f face of the heading member; said means comprising a valve member revoluble in timed relation with the heading member and having a port therein which is open'to the atmosphere during a partial rotation of the valve member, and a fixed valve member having a vacuum port therein adapted to communicate with the port in the revoluble valve member during another portion of said rotational movement.

5. In a can heading machine, the combination of an element for supporting one endportionof a can and providing an abutment therefor, unitary means for supporting the other end of the can `body and a can head therefor, said unitary means comprising a member movable relative to the abutment element to move the can head upon the body, and means for applying suction force to the can head to hold it against said unitary member during the movement of said head onto the can body.

6. In a can heading machine, the combination of means for supporting the opposite ends of a can. body and head members to be applied thereto comprising members movable toward each other to move the head members into assembled relation on the body, and means comprising suction lines' opening through the can supporting members for holding said head members of the can against said supporting means during the said movement of the supporting members toward each other, whereby the can heads are held against the supporting members during the application ci saidheads to the can body.

'1.,In a can heading machine, the combination 'of means for supporting the can body in a horibody.

ADAM J. FISHER.