US1276399A - Ejecting mechanism for presses or the like. - Google Patents

Description

M. W. OBRIEN. EJECTING MECHANISM FOR PRESSES 0R THE LIKE.

APPLICATION FILED JUNE 2 l9l7- I I Patented Aug. 20, 1918.

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M. W. OBRIEN'. EJECTING MECHANISM FOR PRESSES OR'THE LIKE.

APPLICATION FILED JUN; 27 NHL,

Patented Aug. 20, 1918;

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State of New York, have snot to be brought again {between them to ,MICHAEL w. ornrnn, or ROCHESTER,'1\TE,W YORK.

nJEcrINe MECHANISM no To all whom it may concern:

Be it known that I, MIGHAEL'W. OBnfnli,

a citizen, of the United States, and resident of Rochester, in the county of Monroe and invented certain Improvements in Ejecting of which new and useful Mechanisms for Presses or the like, the following is a specification.

The present invention relates to ejecting mechanisms for presses or the like, and more particularly to the type which removes articlesfrom a carrier or die after the latter has operated to carry the articles-to the opcrating elements of the press or the like and then. away from such elements. An object of this invention is to provide an ejecting mechanism which will be positive in its action so as to insure that the article will be moved away from the carrier or die in order between the operating elements of the press or the like. Another object of this invention, is-to provide a construction which will embody two ejectors, one acting toremove the article from the carrier or die,and the other to receive the article so removed and discharge it to one side of the carrier. Still another object of theinvention is to provide an ejector having two members adapted to provide a chute side of thecarrier. v

. To these and otherends theinvention consists of certain parts and combinations of parts all of 1whichwill be hereinafter described, the novel features being pointed out in the appended claims.

;In the drawings1:-.

Figure 1 is a side view of machine embodyingthe present invent on Fig. 2 is an enlarged fragmentary section through the press in the vertical plane of the axis of the rotary die or carrier;

Fig. 3 is a section on the line 33, Fig. 2; Fig. 4 is an enlarged detail view of the mechanism. for operating the secondary ejector; I

Fig. l 5 I plan as the article isbeing received by the secondary ejector; V

Fig. 6 is an enlarged section on the line 64-6, Fig. 5; and

Fig.7 is a d tail view of the ejecting mechanism showingthesecondary ejector as the latter takes hold of the article. I Theinvention as herein illustrated as be- Specification of Letters Patent.

. Application filed June 27, 1917.

direct the articles to one die member 7 is in the form a blank pressing shows the ejecting mechanism in V a rnnssns on THE ma Patented Aug.- 20, 1918.;

Serial No. 177,349.

I ing embodied a blank pressing machine of the type illustrated in Patent #1,034, 193,- granted to me on the 6th day of August, 1912, but it will be understood that the in vention is not machine but may be employed in any machine where an article is carried toa position to be operated by a suitable mechanism, and is then shiftedaway from such position.

In the illustrated embodiment of the invention, 1 indicates a frame carrying two pressing members 2 and 3, one of which is stationary, frame 1 toward and from the stationary member. An suitable means may-be employed for e ectingqthe'movement of the movable pressing member toward the sta-.

tionary member,

movable member has its pitman 1 operated by an eccentric 5 on adrive shaft 6 mounted on the frame 1. r V

Arranged to operate between the pressing members is a carrier 7 designed to carry arti cles between the pressing members for opera.

tion upon by said members, and then to shift the articles away from the pressing members." Inthis instance, this carrier also acts as a die for giving shape to the articles while they are being pressed by the pressing members, as in my prior patent to which reference is herein made; Preferably this of a'fiat plate with openings 8 therein shaped to conform to the desired shape of the article. In this instance, this plate is mounted to rotate, and to thisend it is removably secured to one end of a shaft 9 journaled in the stationary pressing member 3 at a point to one side of the line of movement of the movable memher 2, so that'the pockets 8 may be successively presented between the movable pressing members 2'and 3topermit the articles to be pressed, the articles thereafter being carried by said carrier or die plate 7 away fromthe movable pressing member 2. The movement of the die plate 7 is necessarily intermittent, and this iseffected preferably limited to use with apressing but, in this instance, the.

while the other is guided ,on a

fromjthe' drive shaft 6 which, to this end,

member 13, the periphery of which is cylincles from the carrier provided with an arm is driven primary ejector 19 is so timed drical, except at one side thereof where it is 14 extending substantially tangential to the member, and having its outer end curved on an arc of a circle, the member 13 being also provided in proximlty to said arm 14 with a recess 15. The arm 14 operates between arms 16 on a member 17, said member having curved pockets 18 between the arms for receiving the arm 14: on the member 13, during the rotation of the member 13, the pocket 15 permitting the swinging of each arm 16 as the latter is engaged by the arm 14, while the cylindrical portion of the member 13 prevents the turning of the member 17 by coeperatlng with one of the arms 16 attheend of the latter. The member 17 is arranged on the shaft 9 to which the die member 7 is secured.- It will thus be seen that the arm 14 will successively engage the arms'16, thus turning the die member 7' with a'step-by-stepmovement, and at the same timeholding said die member against movement in one direction be tween the different steps.

With the end in view of removing the arti- Or die member 7, an ejecting mechanism-is provided, which, in this instance, embodies aprimary and a secondary ejector, the primary ejector removing the articles from the carrier as the articles are successively presented to said primary ejector, and the secondary ejector'receiving the articles from the primary ejector and discharging them at a point removed from the carrier or die plate 7.

The primary ejector preferably embodies a plunger 19 which is guided vertically in a stationary pressing member3 to one side of the line of movement of the movable pressing member 2, and at a point where the pockets S are brought to a stop after passing be yond the line of movement of the movable pressing member 2. Normally the pressing member of the ejector 19 is held out of the path of the carrier 7 by a spring 20 which, preferably, is of helical formation and surrounds the plunger ejector 19. While the carrier 7 is stationary with one of its pockets 8 over the upper end of the plunger 19, the latter. is elevated by a suitable mechanism. In this instance, this is efi'ected by a revolving cam plate 21 preferably eccentrically mounted upon a gear wheel 22, which" turns freely upon. the'shaft 9 ofthe carrier 7 and by the gear wheel 23 arranged on the stub shaft 24 with the member l3l It will thus be seen'that' the operation of the that it ejects the articles from the pockets 8 as said pockets come toirest' over the upper end of the ejectori The secondary ejector preferably embodies a member or plate 26 adaptedto co-' operate with that face of the article indicated at X opposite the face engaged by the primary ejector 19, so that the article is held between the primary ejector and the member 26. While so held a pair of retaining devices 27 are moved toward each other from opposite sides of the article X at a point between the article and the carrier 7, to engage with the opposite face of the article, so that when the ejector l9 lowers under the action of its spring 20, after said ejector has been released by the cam-plate 21, the article X will be supported bythe retaining devices 27; The retaining devices'27 "are preferably both elongatedand-extend, when inthe receiving 19 to one sideof the machine so'that they may be tilted about 'a'horizontalaxis ex: tending transversely of the members, after receiving the article, thusaetin'g as a chute for directing the-articleto One sideofthe carrier 7. Preferably these retainers 27 have side flanges 281 so as to prevent the article from moving laterally "front the retainers during its passage over them; The retainers, in this instance, also actto sup} port the member 26', and to this" end the latter is centrallysupported by the pivot 29 of a pair of cross levers 3 0, each of" said levers being slotted at 31 at each end; and

operating 011 a headed pr'ojectioni32'o'n the retainers 27. This mits the retainers to movejtowardandfrom each other without decentralizingth'e-member 26; The lugs 33 on themember26 ccoperate with the links or levers" 30topre vent the turning of the'mem'be'r 26 on the Pivot 29., a i r The movements of the secondary ejector are so timed that'themember'26'is broughtv the re" tainers 27 separated, prior to'themovement" which the latter shifts above the primary ejector 19, with of the ejector 19, after the article X into-contact'with fthe member 26. Then the retainers 27 move under the article X betweent'helatter, and the carrier Thereafter the retainers *27' are tilted, to to" one'side of the ma" discharge the article I chine, and are then opened or" separated preparatory to receiving another article} hese movements? are preferably seciil'ed by inounting the retainers "27fon a rot-r shaft 34, each retainerhaving a depending projection 35 on the underside mounted on" the shaft 34 to turn'th'erewithfbut adapted to move longitudinally of said shaftfthe shaft having a key 36thereon'to can-semen; action. To each of said of two yokes 37 isconnected,,eaCliyokGbe ing pivoted shaft 47, "the beveled gear 48 thereon meshing with" a position,- from the plunger supporting means i perprojections 35, one

to the machine at 38laii cl 'haying an arm 39 with a roller 40 thereon operating memberf 42 :lreyled by two ge'arstdwitha ear;

latter ha'vingi'a effected, in this instance, by an eccentric 50.

arranged on the shaft 47 and operating in a strap 51, the latter having a pitman rod 52 guided therein to bear at its inner end against the eccentric 50. This pitman rod is pivotally and adjustably connected at 5,3 with an arm 54on'the rock shaft 34. When the eccentric 50 rotates or turns, the retaining devices or'mem'bers 27 will, assuming that they are in the position shown infull lines in'Fig. 6, be swung to the position shown in dotted lines in the same figure. On

their return movements, under the action ofthe coil spring 56, the retaining devices will be stopped by a stop or abutment .55 on the frame, thus causing the eccentric 50 and its strap 51 to proceed on their movements independently of the pitmanfl52, so that a dwell may take place inthe movement of the retaining device 27, notwithstanding the continuous movement of the eccentric 50. Later on the eccentric will engage the inner end of the pitman 52 and shift the retaining devices away from the carrier or die 7.

The operation of the machine will be understood from the foregoing description, but

may be summarized as follows:

The articles to be pressed are placed in the pocket 8 which is next to moveunder the press element 2. The article which had been previously subjected to said element is carried over the primary ejector or plunger 19 which is then elevated to eject the article X from the pocket 8 and present it against the member 26 of the secondary ejector. About this time the retainers 27 move under the article and form a chute, andthen the chute.

swings with the shaft 34 as an axis to discharge the article to one side of the machine. The primary ejector returns to its initial position under the action of the spring 20 after the article is engaged by the retainers, and the latter separate after the discharge of the article to be in positions to pass under the next article upon the return of the secondary ejector to the position where it will receive the article from the primary ejector.

What I claim as my invention and desire to secure by Letters Patent is 1. An ejecting mechanism comprising an ejecting plunger, and a secondary ejector movable in a direction normal to said plunger and having a member in engagement with which one face of the article is moved by the plunger and also having retaining means engaging opposite edges of the article while the latter is held against the memberby the plunger.

2. In "combination with a movable carrier having pockets, a primary ejector movable through said pockets to discharge the articles therefrom, and a secondary ejector receiving said articles from the primary ejector and carrying the same away from the primary ejector.

3. In combination with a'carrier having pockets and means for moving the carrier step-by-step, a primary ejector, means for projecting the primary ejector through one of the pockets while the carrier is stationary, a secondary ejector for moving the articles away from the primary ejector, and a spring for returning t 1e primary ejector to its initial position to permit the carrier to, bring another pocket to the primary ejector.

'4. In combination with a rotarycarrier plate having pockets therein, means for moving the carrier step-by-step, a plunger, a revolving cam arranged to pro ect the plunger through the successive pockets while the carrier is stationary, a spring forreturning said plunger to its initial position, anda secondary ejector for receiving the articles from the plunger and carrying them away from said plunger.

5. In combination with a stationary and a movable press member, a rotary die plate arranged to carry articles between the press members and then away from said members, said die plate having pockets therein, means for imparting a step-by-step movement to the die plate, a plunger ejector arranged to be projected through said pockets after the latter have passed out of cooperation with the two press members, a rotary cam mounted to turn loosely on the shaft of the die plate and adapted to projectthe plunger through a pocket when the die'plate is stationary, and a spring for returning the plunger to initial position.

6. An ejecting mechanism comprising a primary ejector, a secondary ejector forre ceiving articles from the primary ejector, the secondary ejector being mounted to swin and having a portion against which one ace of the article is pressed by the primary ejector, retaining members movable to cooperate with opposite edges of the article while it is held by the primary ejector against the secondary ejector, and means for swinging the secondary ejector away from the primary ejector after the retaining devices have engaged the article.

7. An ejecting mechanism comprising a primary ejector, and a secondary ejector, the latter having two retaining devices each forming a chute section adapted to pass under an article held by the primary ejector to conduct an article away from the primary ejector.

9. An ejectingmechanism comprising'a' primary ejector and two chute sections movable toward each other to pass under the article heldby the primary ejector to conduct such article away from theprimaryejector.

10. An ejecting'meclianism con prisi'ng'a primary'ejector and two chute sections movable toward each other to pass under the tide held by the primary ejector to conduct such article away from the primary ejector, said chute sections being pivotally mounted to turn about a common axis extei'i'd'ing transversely of the sections. 11. In an ejecting mechanism, the combination with a primary secondary-ejector including two chute sections mounted to turn about an axis trans versely of the sections, mechanism for moving said sections towardjeach other to cause them to pass beneaththe article on the pri mary ej ector and away from each other after the article h as been discharged by thejchute, and mechanism for moving the chute sec: tions about their axis to cause them' to swing tofan inclined'position to discharge the articles and to' return to the primary ejector prior to the movement of the chute sections beneath another article.

12. In an ejecting mechanism, a primary ejector, a secondary ejector having retaining devices for passing beneath the articles on the primary ejector, and means for ejector, of a s vinging the secondary ejector to cause the latter to discharge thearticles received from the primary ejector, means having provision for permitting the" secondary ejector to dwell iii its swinging action 7 while the retaining iiieansis' passing be nea th the articles.

13. In an ejecting mechanism, a primary ejector, a pi'votally mounted secondary ej ector having retaining devices for. removing the articles from the'primary ejector, means for swinging the secondary ejector comprising" an eccentric, a strap lsurroundiiig said eccentric,a pitinan sli dable in said strap a d coiiiiectedto the secondary' ejector' at a p'oiiit eccentric tothe pivotal axis of said ejector,

and means for stopping the secondary ejector while the retaining devices are receiving an article, from the primary ejector.

14. In anejectingmechanism, the combination with'a'primaryejector, and afpivot-f ally mounted secondary ejector embodying a rock shaft, two retaining members secured to the shaft to turn therewith and movable toward and from each other on the shaft to receive the article from the primary'ejector, of means forrockiiig the shaft and for producing a dwell in said rocking while the re-'' two retaining members movable toward and from each other to passfunder thebarticle while the latter is held by the primary ejector, two crossed levers pivotallyj and slidably connected at their ends to the retaining members, and a member supported by I the crossed levers and adapted to co tip e ate with the upper face of an article on the primary ejector, v I

' MICHAEL WV. OBRIEN.

copies of fliis'pet eiit may beobtaizied foi' five' eeiitsi each by? addressing the Goinii issionefof Pat ents} Washington, D. (3. v

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