US1639427A - Pressing machine mechanism - Google Patents

Description

.ug v A. B. cLlssoN PRSSING MACHINE MEGHANISM ssneersl-sneet 1v Filed Aug'. '7,V 1924 HFA VY VEN TOR W ATTORNEYS.

v l 192 u Aug 6 7- A. B. cLlssoN PREssING MAGHI'NE MEcaANIsu Filed Aug, 7.11924 s sheets-sheet 2 INVEN TOR.

,i fw,

.GMI

Aug. 16, 1927.

` A. B. CLISSON PREssING MACHINE MECHANISM Filed Aus. V, 1924 A v 3 sheets-sheet "5 AT TORNEY5,

Patented Ang. 16, 1927.

UNITED" STATES PATENT OFFICE.

ALRERT B. oLIssoN, on SYRAOUSE, NEW YORK, ASSIGNOR, BY MnsNE ASSIGNMENTS, To THE PROSPERITY COMPANY, INO., or sYRAoUsE, NEWYORK, A CORPORATION or lNEW YORK.

PRESSING MACHINE MEGHAISM'.

This inventi n relates to garment and laundry pressinlg machines and hasfor its object a particularly simple and eflicient vmechanism for openingand closing the machine entirely by power, which mechanism is so construoted'that the motvable element or press head has av preliminary closing movement before the power can be ei'ectively applied and is also so constructed that if the movable element or head is prevented byobstructions from completing its preliminary closing movement, the power will not beeffectively applied, and further has for its object a particularly simple andeiicient mechanism for controlling the intermittent actuation of a drive shaft from a constantly running motor. The invention consists in the novel features and in the combinations and constructionshereinatter set forth and claimed and described.

In describing this invention referenceis had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a side elevation of a machine embodying my invention, the same being shown as 1n closed position.

Figure 2 is an enlarged sectional view of the clutch means for connecting and disconnecting the constantly running motor shaft to the intermittently rotatable drive shaft of. the machine and the controlling means of said clutch.

Figure. 3 is a sectional view on the plane of line 3-3, Fig. 2.

Figures 4 and 5 are sectional views respectively of the cam and closure for controlling the operation of the clutch.

Figure 6 is la transverse sectional view taken on line 6 6, Figure 2 showing the connections for eiecting the relative movement of the cam and closure shown in Figures 2, 4 and 5. Figures 7 and 8 are detail views of another form of closure means.

Figure 9 is a detachedelevation of a third form of closure means.

Figure 10 is a detail view of a fourth :a: form of closure means. y

Figures 11 and 12 are detail Views of the cam and closure shown in Figure 10,.

This pressing machine comprises cooperating pressing elements one movable toward and from the other,means for actuating the movable element comprising a power member, connections between the power member and the movable element and normall arranged out of motion transmitting re ation to the power member and movable into ef'- ective relation by a preliminary closing movement of the movable element, an intermittently movable drive shaft having'- an eccentric means coacting .with the power member,-this drive shaft making a plural' ity of hal" revolutions during each intermit` tent operation, one intermittent operation acting to effect .the preliminary closing movement of the movable element and hence bring the motion transmitting connections into effective relation, and to effectively actuate Athe power member after said connections have been brought into effective relation and to release the pressure and open the .press head during the next intermittent rocluding a table 4 suitably supported by legs or pedestals 5,6. The head 2 is carried by the forward arm of a vertically "movable yoke or lever 7 pivoted at 8 between its,ends to an upright 9 forming an extension of the rear leg 6 of the frame.

10 is 'a vertically movable power member or lever pivoted at y1l to the frame near the base thereof and having an arm 13 extending to the rear of the pivot. The connections between this power lever 10 and the" movable element '2, in addition to the yoke or lever 7 includes toggle links 14 and 15 pivotedtogether at 16 and pivoted respectively at 17 to the rear arm of the lever 7 and to the frame, the link 15 for convenience being mounted on the same pivot 11 that the power lever 10 is mounted on. The connections further include a thrust link 18 pivoted at 19 to the rear'arin of the power lever 10 and normally extending upwardly in position to coact with an extension 20 of the link 14 when the 'toggle has' been partly closed by the preliminary closing of the press.

This link 18'is supportedinits initial po-v sition by a rod 21 pivoted tothe frame and extending through the link 18 and anut 23v threading on the end of the rody against the between the link and the vns rear face`18. A spring is usually interposed frame. to ,thrust it against the nut. By turning the vnut 23, the.

position of the link 18 can be varied and,

hence the position at `which the vtoggle comes into effective relation thereto varied to suit conditions. These conditionsdepend upon the thickness of the work to be' operated on,

`it being intended that'the head 2 'will be'.

preliminarily moved soclose to the work on the buck 1 before'the toggle comes into effective relation toV the' link .18, that there is a; space so small between the head 2 and the work on the buck 1 that the operator cannot have his hands or fingers between the ressing elements .when the power is applie' and if he does have ,his hands or fingers on the lower buck, the head 2cannot be closed preliminarily far enough to bring the toggle into veffective motion transmitting relation.l

withthe thrust link 18. l

The pressure is adjusted without affecting the adjustment ofthe link 18 -or theI position of the head 2 at the end of the preliminary closing movement of the head 2` by means for adjusting .the link 14 end-wise without varying the length thereof, that is without varying the distancebetween the pivots; 16

and 17 As here shown, in order to affect this adjustment the link comprises two sections, one slidable in the other, one section including a sliding block 24 movable inthe bore 25 in the main section of the link 14, a

rod 26 threading throughvthe slide and also threading into a bearing 2 7 mounted on the I pivot 17, the threads of the rod being in the same direction, that is both 'areright hand threads, the lower end of the rod'thrusting against an abutment 28 in thebore 25. Usually this abutmentgis supported vby av stiflI spring 29 and alighter spring is inserted lbetween the abutment and theslide. The rod is turned by means of avwheel 30 slidably keyed thereto. By turning the wheel head 2 and buck 1 'at the end ofthe preliminary-closing movement, and the adjustmenttance between the end of the rodand theof the 11101.1- The head2 and forward armY of the lever 7 are heavier thanthe parts carried by the pressure, form nopart of this invenrear arm of Athe lever 7, so that the head 2.

tends to close by'gravity, and, in order to more nearly counterbalance-thc'head 2, a

weight 31 is connected to the rear armofv the yoke lever 7, :this weight being'pref'en, ably carried in front of the plane of the .axis f 8 of the lever 7 and'being mountedlon a downwardly andrearwardly extending arm 31a plvoted at its rear and at 32 and connected to the rear armof the level'v 7 by a-link 33.

- The preliminary'movement of the press head 2 to bring thetoggle and the thrust link 18 into effective motion. transmitting relation and the 'actuation ofthe power lever 10, is efectedfby an intermittently rotatable shaft 34 which makes more thaii'a" .'IlOlation during eachintermittent movement and-din'- ing thefirst part of each intermittent movement effects or permits the preliminary closing ofthe press head l2 and vduring the last.

part effectively actuates thev power lever 10.

During -the first part of each rotation whilelv the press head is preliminari'ly closing and the toggle links 14 and 15 are'being brought into effective motion transmitting relation ywith thefthrust link 18, the power lever 10 and the thrust link merely idle. 4

In the illustrated embodiment of my invention, the vshaft 34 during eachintermittentopera'tion makes one and one half revolutions or three 'half revolutions and the shaft 84 has an eccentric means as a'crankpin 35 with a'roller thereon coacting with the Afront arm of the power lever 10.

`During the firstfand second half revolutions, 1the power lever 10 is merely idled b\ut during the third half revolution the" press having been preliminarily closed and .the toggle and link 18 brought into effective relation, the power lever-.transmits motion through the link 18 to the togglel and st'raightens the toggle toward the dead eenv ter line ofthe toggle, and thus-applies power' yto the press head.

In the event, the operator for anyreason places his hands between the press head 2 and buck 1 to straighten out Wrinklesetc,

during the preliminary closing movement, the head 2 whenstriking his 'hand will prevent the head from-closing to such va point that the toggle comes into 'effective position not be applied.

The connections for effecting or permit.

ting the preliminary closing movement of the head 2 areoperated by the shaft 34' and comprises a second shaft 38 arranged par allel to the shaft 34, a gear 39 onl the shaft c with thrust'link 18 andhence' the power will l 34,' a second gear 40 mounted on the shaft' 38 and meshing with the gear 39, a crank 41 on the shaft 38and a link 42 connecting the shaft and a part movable with the press head 2, the link being connected' to one of the parts it connects by a lost motion, or pin and slot connection. As the shaft 34 makes a arevolution and a half during each intermittent operation, the gearing 39 and 40is a reduction gearing, the ratio of which is 1 to 3 so that the gear 40 and crank 41 make a half revolution to eachintermittent 'operalo tion` or each one and a half revolutions of the shaft- 34. As here illustrated, the link 42 is connected to the weighted arm 31a by a pin and slot connection 43. Thus whenthe press is open the crank 41 and link 42 are on l5 the opposite side of the of the shaft38 from that shown in Figure 1 and the weight movement of the press, the crank 41 tends to move the end wall of the slot up away from the pin, permitting the Yhead todrop half way to its closed position by gravity, '-5 the crank making one sixth of a revolution. During the second half revolution of the shaft 34, the crank makes another one sixth revolution' permitting the. head to move to its preliminary closed position and .the tog- 3 gle to come into effective engagement with the thrust link 18.

During` the third and last half revolution, the power is applied to ythe preliminary closed press head through the link 18, the

55 parts coming into the position shown in Figure 1, so that the power isl applied bythe cam' or roller 3G. During the first two half revolutions, the lever and thrust link' 18 merely idle as the link 1.8 is not-in effective l" engagementwith the toggle link 14 or thel extension 2O thereof. A spring 44 causes the power lever`10 to follow the cam. To open the press the shaftis again actuated and makes fa movement consisting of three half revolutions from the position shown in Figure 1. During the first half revolution, the crank 41 makes one-.sixth of a turn `to the right from its position shown `in Figure 1, moving the weight 31 down farenough to release the pressure on the head 2, thefcam in so doing relieving 'the pressure on the power lever 10. This movement causes the toggle to move out of eifectiverelation with the thrust link 1 8. The

55 second half revolution of the shaft 34 moves the press head to half way open position and the third one half revolution.. completely opens thepress vhead 2. During the second and third half revolutions of this intermittent shaft 34, the power lever 10 merely idles. l

lThe shaft 34 is journalled in bearings in a suitable housing 45 and also the shaft 38 is j ournaledin'bearings in a portion 46 of said 65 housing.

The shaft 34 is intermittently actuated from a constantlyv running motor 47 suitably supported on the main frame of the machineand is connected and disconnected from th-e motor by a periodic clutchv of any suitable construction. here illustrated, the shaft 34 is driven by a worm 48 `mounted on anextension of the armature shaft of the motor and meshing with the worm wheel 49 rotat1 able about the shaft 34 and mounted concentric thercwith and a periodic clutch for Y connecting the wheel 49 and the shaft 34. As here illustrated, this periodic clutch comprises a shiftable Section 50,v mounted on the shaft 34 to rotate therewith and slide axially p thereof, and clutch pins '51 shiftable by the 31 is depressed and the pin of the pin andV slot connection is at the upper end ofctheA slot 43 in the link 42. During the first half j l0 revolution of the shaft 34, in the closing section 50into and out of openings 511 in the web of thewlieel 49. The clutch pins are guided in suitable openings in a guidev disk 53 arraii'gedadjacent to the web of thegea-1149 and the motion ofthe Section5() is yieldingly transmitted tothe pins through a pressure ring 52 thrust-ing against shoulders on the pins and springs 54 between the pressure ring 52 and the shiftable section 50.

A. main spring 55 tends to throw the section 50 .in its out7 position. rlhe section 50 is shifted into its in position by shifting lever 56 mounted on a rock'shaft/? jourxnalled in the housing 45, this lever thrusting against the end of the hub of the .section 50, The rock shaft 57 is actuated from a rock shaft. 58, Ii`igure 1 mounted on the main frame and having a handle 59 on its front end and valso having a rock arm 60 coacting with a rock arm 61 on the shaft 57.. The

operation is such that upon the depression' of the handle 59., the lever 56 will be thrust to'the left inwardly and shift the clutch section50 into interlocking engagement with l the worm wheel 49. The clutch is held in its in position during each intermittent operation. of the shaft 44 by means which will be presently described.

The means for holding the clutch section 50 in its in position while t-he shaft 34 is making a plurality of half revolutions, that is, three half revolutions, comprises a cam ring 65`arranged concentric with the shaft 34and opposed to the clutch section 50, and having diainetrically opposite notches 66,

-and plain faces 67 between the notch-es, andv vtion 50 held in its in position, until the followers 56 again enter the notchesft. In

. order to hold the followers outrof the notches 66 at the ends of the lialfrevolutions, so that the shaft 34 may make a plurality of half revolutions during each intermittent.. operation, .a closure is provided for holding the followers from entering into thenotches until the end of each cycle of movement, this means being actuated' by the shaft 34.

, As shown in Figs. 5 .and 6, one form of this closure consists of'a ring 68 arranged concentric with the cams. 65 and movable y about the axis of the-ring 65, the ring 68 liavingnotches 69 normally aliiied with the notches 66. During the movement of the clutch section and the shaft34, the ring 68 is rotated to carry the notches 69 out of alinement with the notches 66, so' that, the liigh or plain faces 70 of the ring 68 obstruct y the notches 66 to the entrance of the fol- 'lowers until the end of the cycle of movel ment of the shaft 34. The'inovement of the l ring 68 is suchthat the followers are prevented froin entering the vnotches 66 at the end of the first and second half revolutions of the shaft 34.

In Figs. 5 and 6,/the ring 68 is shown asv having -a bearing onand 'rota-table about the ring or cam and as having peripheral gear teetli'7l meshing y with a p iiiion 72 mounted on the shaft 38. As the ratio of gearing between the shafts. 34 and 38,v that is, between gears 39 and 40`is one to three,

the ratio of the gearing between the pinion 72 and cain ring 68 is also one to three, thus the notches 66 and 69 of the rings 65 and 68 come into alinement at th-e end of every third one-half revolution.

In the modification shown in Fig. 7 the a closureI comprises'a pair of star wheels 73, haring shallow notches 74 and diametrically opposite deep notches 75 arranged to come iiito aliiiement with the notches of the cam ring 77, corresponding to the cam rings-65. The followers of the shiftabl'e section 50 are normally located in the 'notches of the ring 77 and the deep notches 75 of the star wheels,

' and are shifted manually out of such;notches l liu by the operation of the shifting lever- 56. During the beginning ofthe first one-half `revolution, the followersengage-teeth ofthe star wheels turning suchA wheels one step and bringing the deep notches out of alinement with the ynotches of the cam ring 77.

During` thev next one,-lialf revolution 4the star wheelsare likewise turned another step, and

during the third one-half revolution the star` wheels are turned another step, bringing the deep Anotches 75' into alinement with the-` notches ofthe cam ring 77, so that,'at the end of the third one-half revolution the followers will enter the notches of the cani` ring 77 and the clutch section 50 will throw to its ,ont position. -There are two star wheels 73 arranged 'diametrically opposite each other, as thereare two followers on -the clutch section 50. Two followers are usedmerelv to balance the'cliitch section 50.

In the modification shown in Fig. 9, aA

ring 78 similar to the ring-68 may be used, this being actuated from the shaft 38, by a link 79'pivoted at 80 at one end to the ring and at its other end mounted on an eccentric pin 81 on a collar 82 rotatable with the shaft 38. l.In this construction the ring 78'rocks.

or oscillates as the shaft 38 is making one and one half revolutions andlbrings the notch 83 therein out ,of and into alineinent with the notch 84 in the 4cam ring 85, corresponding tothel cam ring 65, once during each three half revolutions.

In Figs. 10, l1 and 12, another closure means is shown, and in this construction the outer notched ring 86 is stationary and the inner vcam ring 87 rotatable to bring the notches therein intol and out of alinementv with the-notclies in the ring 86. Asihere shown the ring 87 is driven directly from the shaft 34 through a reduction gearing having a ratio of `one to three. The gearing consists of a gear 88, mounted on theshaft 34, and meshing with one or moreidlers 89 two first half revolutions and pressure applied during the thirdv half revolution of the closing operation. The pressure is relieved and thepress part way opened during the A first vtwo half revolutions' and fullyv opened' during the third half revolution of the opening operation.

The construction of the clutch per se formsv no Apart of my present invention, but constitutes the subject matter of another application, and in so far as this invention is `concerned any periodic clutch may be used.

By clutch construction perse is meant the shiftable section 50, guide vlink 53, pins 51,r

pressure ring 52, springs' 54 and throw-out springs 55, and also the controlling." of such? a clutch by any typeof ring'. The portion of the clutch construction pertinentlto the invention and which makes a periodic clutch i' adaptable toy this invention forms part of lthe subject matter of this. invention. That is the construction of parts and their opera'- tion show n in Figures 3, 4, 5 and 6.

lVhat I claim is llU 1. In a pressing'machine, the combination I of cooperating pressing elements', -one movable-toward and from the other, means-for actuating' vthe movablev element comprising a power-member, connections betvi'een lthe power member -and lthe movable element in cluding parts normally out ofeifective inotion transmitting relation vand movable into effective relation by a Apreliminary closing movement of the movable element, an intermittently rotatable shaft having means as- .-=sociated therewith for co'acting with the shaft by the driving means.

2. In a pressing machine, the combination of cooperating pressing elements, one mov able toward and from the other, means for actuating the movable element comprising a power member, connections between the power member and the movable element including parts normally out of effective mo Ation transmitting relation and movable into effective relation by a preliminary closing' movement of the movable element, an intermittently rotatable shaft rotatable more than one revolution during each opening move-` ment-and during each closing movement of the movable element, the shaft having means associated therewith for coacting with the power member to actuate it while and after said parts are brought into effective motion transmitting relation, and motion transmit ting elements between said shaft and the movable pressing element to preliminarily close such element and bring the said parts into effective motion transmitting relation during the first rotative movement of the shaft-during the closing operation, and for moving said parts out of effective relation and opening the press during the latter ro'- tations of the shaft during the opening movement of the press, means for driving the shaft, and means for controlling the` rotation of the intermittently rotatable shaft.

3. In a pressing machine, the combination of cooperating pressing elements, one mov-v able toward and from the other, means for actuating said element comprising a power member, connections between the power member and the movable element including parts normallyl out of effective motion transmitting relation withl thepower member and movable into effective relation by a preliminary closing movement of the movable element, an'intermittently rotatable shaft having means associated therewith for" coacting with the power member to actuate it, and

motion transmitting elements between the.

'shaft and the movable element including a weight arranged to move said element preliminarily toward closed position and bring said parts into effective motion transmitting relation during the first rotativemovements of the shaft during the closing operation and for moving said parts out of-effective relation and opening the press and lifting the weight during the'last rotation of the shaft during the opening movement ,of the press, means fordriving the shaft, and means for controlling the rotation of the intermittently movable shaft. y ig 4. In a pressing machine, the combination of cooperating pressing elements, one movable toward and from the other, means for actuating the movable element comprising a power member, connections between the power member and the movable element in cluding parts normally out of eective motion transmitting relation with the power member andl movable into effective relation lby the preliminary closing .movement ofthe movable element, an intermittently rotatable shafthaving an eccentric thereon coacting with the power member to oscillateit, and motion transmitting elements between the shaft and the movable element to preliminarily close such element and bring the parts into effective motion transmitting relation during the first movement of the eccentric by the shaft, and for moving said parts out of effective relation and opening the press during the last rotations of the shaft and the eccentric during the opening of the press, means for driving the shaft, and means for controlling the rotation of the intermittently rotatable sha-ft more than one revolution during each opening movement and each closing movement.

5. In a pressing machine, the combination of cooperating pressing elements, one movable toward and from the other, means for actuating the movable element comprising a power member, connections between the power member and the movable element including parts normally out of effective motion transmitting relation *with the power member and movable into effective relation by the, preliminary closing movement of the movable element, an intermittently rotatable shaft having an eccentric thereon coacting with the power member to oscillate it, and motion transmitting elements between the shaft and the movable element to preliminarily close such element and bring the parts into effective motion transmitting relation during the first movement of the eccentric by the shaft and the moving of said parts out of effective relation and opening the 4press during the last rotations of the shaft and the eccentric during the lopening' of the press, means for driving the shaft, and means for controlling the rotation of the intermittently rotatable shaft more than one revolution during each opening movement, and .the m0- tion transmitting elements comprising a second shaft, a reduction gearing betweenthe shafts, a crank operated by such gearing and connected to the movable element by means including a lost motion connection.

6. In a pressing machine, the combination of cooperating pressing elements, one mov-l ableA toward and from4 the other, means for actuating the movable Ielementy comprising a power member, connections between the power member and the movable element includingA parts normally outof effective motion trans,-

mitting relation with ythe power, member andy vtive motion transmitting. relation Iduring the lirst movement'of the eccentric lby theshaft Vand the moving of sa-id'parts outof effective relation and-,opening the press'duringv` the last rotations of the shaft and-the eccen? tric duringthe opening ofthe press, means :for driving the shaft, and 'means 'forconL trolling the rotation ofthe intermittently 'ro,

tatable shaft more than one revolution-.durf ing each opening movement comprising "a second shaft,'a gearon the drive shaft, la

' 'gear of larger diameter onfthesecond shaft and having av crank associated therewith andA a link connected to the'crankand tov a' part movable with` thle movable element by a :pinv andslo'tconnectin.

. '7. In a pressing machine, the combination of cooperating ressing elements, one-mov"- able. toward arid)1c ml the other, means for actuatingthe. movable element comprising a 'I power member, connections between the power. i

member and the'movable element including partsznormally out of'effective `motion transmitting relation with the power member and movableinto effective relation=by thepreliminary closing movement of the movable f7 elementA an interfmittently rotatable shaft having aneccentric 4thereon co'acting lwithgf the power member to oscillateit, and motion transmitting.v elements between the shaft and the Amovable element topreliminarily-.close such" element andbring theparts into etfec-4 .1 4

tive motion transmitting relation during the first mov'ementof theiec'centri'c by the shaft and the moving of said parts out of'effective relationf and openingfthe -pre'ss during the last rotations of the" shaft and the'eccentric during the .opening of the fpress,4 means for driving the srlaft, and-means for controlling .the rotation of the'intermittently rotatable'. y shaft morevthan'one revolution during each vopening movement and Aeach closing move- ,menthfsaidmotion transmitting elements bc- 1 tween the lshaft and the movable element `toi preliminarilyjclosev the ,press comprising a second shaft,'a reduction gearing between the shafts and' said controlling means. in-

cluding. a part actuatedl by the 'second shaft.A

n. In' testimony fwhereof, 'I have hereunto signed v.my name, at Syracuse, in thel county this 28th ay of July, 192e ALBERT B. oLrssoN.

of Onondaga,and'in'theSt'ate of New York,

Images