US1139645A - Machine for setting gromets and the like. - Google Patents

Description

J. F. DAVEY.

MACHINE FOR SETTING .GROMETS AND-THE LIKE.

APPLICATION FILED AUG.23, 1909.

1,1 39 6459 I Patelltd May 18, 1915.

3 SHEETS-SHEET 1.

. 1. F. DAVEY. MACHKNE FOR SETTlNG GROMETS AND THE LIKE..

,APFLICATION FILED AUG.23,1909.

3 SHEETS-SHEET 2.

, WVENTJR.

Patented May 18, 1915.

J. F. DAVEY. MACHINE FOR SETTING GROMETS AND THE LIKE.

APPLICATION FILED AUG.23, 1909.

Patented May 18, 1915.

3 SHEET$SHEET 3- FSL, g if m,

JOHN F. DAVEY, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON,

JERSEY.

NEW JERSEY, A CORPORATION OF NEW MACHINE FOR SETTING GROMETS AND THE LIKE;

Patented May is, leis.

Application filed August 23, 1909. Serial No. 514,180.

To all whom it may concern:

Be it known that I, Jenn F. DAVEY, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Machines for Setting Gromets and the like, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

The present invention relates to machines forsetting fasteners, and more particularly to machines for setting gromets and Washers, although certain featuresof the invention are also applicable to machines for setting other forms of fasteners, such, for instance as eyelets, studs or rivets.

An object of the present invention is to provide an improved machine for setting gromets and washers or large eyelets in sheet material, such 'as canvas orducking used for sails or the like.

More specifically,-it is an object of the invention to provide an improved mounting for, and arrangement of, the dies of a machine for setting fasteners, whereby convenient and accurate adjustment of these devices ma be made for ada tin the machine to operate on work of varying thicknesses and for setting gromets of diiferent' sizes.

In this connection the invention contemplates also a mounting for a setting die of such a character as to permit a limited yielding movement of the die in the case of an unexpected obstruction, such mounting also permitting considerable variation in the thickness of the material in which the fas' teners are to be set Without the necessity of special adjustment of the setting dies.

Another object of the invention is to providean improved mechanism for actuating the setting devices of machines for setting groniets or other fasteners.

Another object of the invention is to provide an improved raceway for transferring gromets or other fasteners from a hopper to the setting devices, together with provision for adjusting the raceway both laterally and vertically in order to insure the proper delivery of the fasteners to the setting devices. In this connection the invention contemplates also the provision of novel mechanism for moving a raceway from a fastener-delivering position and maintaining a rapeway in an inoperative position during the setting operation.

lVith these objects in view, a feature of the present invention consists in the provision, in a machine for setting fasteners, of coiiperating setting dies, one of which is adjustably connected to a yieldingly mounted thrust-receiving device by means of a bearing member extending outside the frame of the machine, thus permitting convenient adjustment of the setting die independently of the movement of the thrust receiving device. This feature of the invention is not limited to use in connection with machines for setting gromets but may be embodied advantageously in machines for setting other fasteners.

That feature of the invention which relates to improved mechanism for actuating the setting devices, consists in the provision of a toggle and a connecting link for transmitting power from the main shaft to the die carrying plunger and in so guiding the movable end of the toggle, which is linked to the plunger, that the lateral stress incident to a direct toggle connection with the plunger is in a large measure, eliminated.

A further feature of the link and toggle mechanism lies in the symmetrical arrangement of the whole mechanism with respect to a vertical plane whereby lateral stresses are avoided. importance in machines for setting gromets and other fasteners requiring a considerable clenching pressure.

Those features of the invention which relate to an improved raceway consists in providing for use with a hopper adapted to dcliver fasteners on two sides, a branching raceway, each branch of which is construct ed and arranged to receive fasteners from one side of the hopper and deliver them to the main portion of the raceway at a'.diii'erent point. Such an arrangement is particularly effective for insuring an unobstructed passage of the fasteners from the hopper to the setting devices.

A further feature lies in the provision of laterally adjustable guideways located in proximity to the delivery end of the raceway 1.15

This feature is of particular means for effecting a vertical adjustment of the raceway which may be efiected by rotating the eccentric bushing.

Other features of the invention, relating to the raceway actuating mechanism, consist in providing a system of cam operated levers for swinging the raceway into an inoperative position and in providing a cam having a delayed action foractuating said levers. Preferably the cam is connected with the plunger actuating mechanism in such a way that the die is allowed to move until its spindle has engaged a fastener in the raceway before the raceway is moved and similarly, on the return stroke, the die is allowed to move back from the setting position before the raceway is permitted to return.

Other features of the invention consist in certain devices, combinations and arrangemerits of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description.

A gromet setting machine embodying the various features of the present invention in their preferred form is illustrated in the accompanying drawing in which Figure 1 is a side elevation of the ma chine; Fig. 2 is a front elevation, showing the mounting for the lower setting die in section; Fig. 3 is a sectional view of the upper setting die; Fig. i is a view in perspective of the actuating mechanism for the upper setting die, together with the clutch controlling and brake mechanism; Fig. 5 is a view in perspective of the mechanism for actuating the raceway; Fig. 6 is a fragmentary view of the brake' shoe; Fig. 7 is a detail view of a portion of the raceway.

The head 1 of the machine is mounted on a suitable standard 2 and is provided with a lower jaw' inwhich the lower setting die 3 is mounted and with an oppositely disposed upper jaw in which the movable upper setting die 10 and the mechanism for actuating this die are mounted.

The lower setting die 8 has the pilot spindle 4: formed integral or otherwise rigidly connected therewith and is provided with a downwardly extending shank 5. The setting die 3 is stationary except when subjected to an excessive pressure when a slight yielding movement is permitted to it. To this end the lower jaw of the head lis counterbored and provided with an apertured nut 6 upon which rests a heavy spiral spring 7 supporting a thrust receiving member 8- limited in its upward movement by -the counter bore. The member 8 comprises an internally threaded cylindrical nut; into which is threaded the upper end of the bear- I ing pin 9 upon the end of which bears the shank 5 of the setting die. The bearing pin 9 extends freely through the apertured nut thrust receiving member 8 for adjusting the position of the lower setting die.

A set screw is threaded into the meinber 8 through a slot in the frame and answersthe double purpose of preventing rotation of the member 8 when the bearing pin ,9 is turned for adjustment and preventing the bearing pin from working loose in the member 8.

With the construction above described it will be seen that the height of the setting die 3 may be adjusted conveniently without affecting the arrangementi of the inclos'ed parts of the die mounting or altering the pressure exerted by the'spring 7 on the setting die.

Coiiperating with the lower setting die 3 is the upper settingdie 10 which is mounted on the reciprocating die-carrying plunger 11 by having its shank clamped within the split end thereof by a cap nut 12;. plunger 11 is recessed to receive a spindle 13, the end-of which is cupped to receive and center the rounded end of the spindle l during the setting operation. The spindle is yieldingly maintained in an extended position by the spring 14 but during the setting operation is forced into the plunger by the lower spindle l.

Journaled in the upper part of the head 1 is the main shaft 15 (see Figs. 2 and 4) having on one end'a hand wheel 16 and on the other a loosely mounted driving pulley 17 between which is interposed anv desirable form of clutch mechanism whereby the pul- Mechanism to be hereinafter The i more particularly described is provided, for

automatically disengaging the clutch after one revolution and so preventing more than one reciprocation of the setting die for each depression of the treadle. v

Mounted on the main shaft 15 is an eccentric disk 18 which actuates a horizontally guided eccentric rod 19." At its forward end the rod 19 is pivoted between the arms of a double lever 20 fast to the spindle 21 which is journaled in'ears 22projecting upwardly from the head of the machine. The opposite end of the double lever 20 is pivoted by the pin 23 to a forked link 24 which, in turn, is pivoted by the pin 25 to a double radius rod 26 fast to the short shaft 27 which is j ournaled between the sides of head '1. Also pivoted on the 'in 25 is the link 28, pivoted at its lower end to the plunger 11 carrying the upper setting die 10. It will be appar-f iane-la to guide the movable end of the toggle. in a path substantially in alinement with that of the plunger 11.

. he raceway 30 having the branches 31 and 33 is pivoted to the head 1 on the spindle 32 and oscillated during the setting operation from the gromet delivering position indicated in Fig, 2 to an inoperative position out of alinement with the setting die 10. To this end there is frietionally mounted on the outer end of the shaft 27 a cam 34 having two outwardly extending lugs 36, 38 which lie in the path of a cam actuating finger 40 fast on the shaft 27 and having a width less than the distance between the lugs. Pivoted to the head 1 below the cam 34 is a lever 42 having a roller 44 adapted to cotiperate with the cam 34:. Pivoted on a spindle 45 and movable in a plane at right angles to that of the lever 42 is the raceway actuating lever 46 having a. hooked end standing in the path of the lever 42 and adapted by its lower end to engage the delivery end of the raceway through the medium of an adjustable link 48. Pivotally connected with the raceway by a'pin 49 is a rod 50 extending laterally through the head of the machine and provided with a spring 51 which serves to maintain the raceway normally in its gromet delivering position. A stop 52 is provided in al'inement with the link %8 and by engaging the end of the lever 46 serves to determine the gromet delivering position of the raceway. When the eccentric rod 19 is reciprocated the shaft 27 and the cam-actuating finger l0 are oscillated throughthe various links above described and the cam 34- swings the lever 42 about its pivot moving the raceway-actuating lever 16 and so moving the delivery end of the raceway outwardly. As a result of the arrangement of the cam actuating finger h) and the lugs 36, 33, the shaft 27'is permitted to rotate, while the plunger 11 makes the first part of its stroke, without affecting the cam 3-1: or moving the raceway, whereby, on the down stroke, the spindle is given time to enter the endmost gromet, and on the up stroke the setting die 10 is given time to more out of the path of the raceway before the latter is moved to its gromet delivering position.

Surrounding the spindle or pivot 32 is an eccentric bushing 39 normally clamped to the raceway by a clamp ll. Vertical adjustment of the raceway may be effected by loosening the clamp 41 and rotating the bushing 35) by which adjustment the deliv-v ory end of the raceway may be properly located with respect to the upper setting die i The (-onstructimi above described provides also for a lateral adjustment of the upper end of the raceway as the raceway may lw shifted laterally on the hzmhing 39.

N ar the delivery and of the raceway 3!) are formed parallel guiding surfaces 37 which engage corresponding faces of a guideway 53 having a tongue and slot connection with the head 1. The guideway 53 may be moved laterally for efi'ecting lateral adjustment of the delivery end of the raceway by means of a shouldered screw 54 threaded into the head 1.

In order to limit the outward movement th raceway and prevent undue jarring of the machine a yieldingly mounted stop 43 is located in the head 1 at a point above the pivot 32 and serves to arrest the raceway and absorb the shock.

The hopper 56 is mounted u'pon'the upper end of the raceway 30 which extends later-. ally at an inclination above the pivot 32. Gromets may be poured in bulk into the hopper 56 and are discharged thence by suitable ports to the branches 31 and 33 of the raceway. An agitator of any suitable type preferably in the form of a brush, isrmount- Y ed within the hopper and oscillated through.

the spindle 58 which projects downwardly through the bottom of the hopper by means of a forked lever 60 fast to said spindle and engaging a bent rod 62 mounted in a pivoted arm -64. The arm 64; is fast to slide'way 66 and is oscillated therewith by a crank arm 67 rigidly connected with the outer-end of the journal pin 21.

The branches 31 and 33 of theraoeway extend on opposite sides of the hopper 56 and open into the main portion of the raceway at different points, the branch 31 delivering at a point slightly higher than the'branch 33. Such an arrangement avoids the possibility of collision and resultingobstruction of two gromets entering the main portion of the raceway at the same time.

An edge gage 68 is provided at the rear 3 cific description at this time further than the statement that it is caused to engage and disengage through the medium of a ring member 70 adapted to rotate with the shaft,

15. When the ring 70 is free it is moved by a spring (not shown) to a clutch engagmg position and thereupon rotates with the shaft but when an abutment 71 formed thereon encounters the movable stop 72 the ring is moved in the opposite direction and the clutch d1sengaged..

The stop 72 is yieldingly mounted in an arm 7s pivoted on the spindle 75 which is journaled in a bracket 76 formed on the head i of the machine. Keyed or otherwise rigidiy connected with the spindle is a col- I of the spindle is fastened a member having a downwardly extending arm and a pair of ears 82. Bearing against the arm 80 is a spring pressed pin 88 which tends to swing the stop normally into position to engage the ring 70 for stopping the rotation thereof and causing the clutch to disengage. Forthe purpose of adjusting the pressure of the pin 83 there is provided a nut 84 hearing on the spring which encircles the pin.

In order to move the stop 72 out of engagement with the clutch ring 70 for starting the machine there is provided a catch 86 shaped to engage a pin 87 on the stopvcarrying arm 74- and pivoted to arm 88 which in turn, is pivoted at 89 to the'head 1. The arm 88 is provided with stops 90 which cooperate with a lug 91 formed on the head 1- to limit the motion of the arm 88. The arm 88 is connected to a suitable treadle by means of a tre'adle rod 92, the motion of which is opposed by the spring 93 encircling a guide pin 94 pivoted to the arm 88 and sliding in a hole drilled in the lug 91. By reference to Fig. 1 itwill be seen that a depression of. the treadle will cause a downward movement of the catch 86 and stopcarrying arm 74 thus releasing the ring 70 and allowing it to make its clutch engaging movement for starting the machine. After the machine has been put in operation and the treadle released the stop 72 is held against the periphery of the ring 7 0 by the spring actuated pin 83 and is in position to engage the abutment 71 at the end of one revolution of the main shaft. 7

In order to insure stopping of the machine at the end of one revolution Whether or not the treadle has been released there is provided a cam .95 formed on a.collar 96 rotatable with the shaft 15 which cam is adapted to strike the angularly extending end of the catch 86 and disengage it from the pin 87 thus allowing the stop-carrying arm 74 to move upwardly under the influence of the spring actuated pin 83 independently of the' operation of the treadle. 'lhe cam acts to maintain the catch in an inoperativeposition until the machine has completed a whole revolution whereby accidental depression of the treadle is rendered ineffective in so far as relates to the setting instmimentalities.

A brake disk .98 is keyed or otherwise made fast to the main shaft 15 and cooperating therewith is a brake shoe 100 connected by means of a short link 102 with the cars 82 -Formed on the member attached to the end of the spindle 75. The link 1032 and the ,is permitted by the cam ring 7 0 to move upwardly into its clutch disengaging position.

The link 1022 is connected to the brake shoe 100 through the medium of an eccentric pin 104 which permits adjustment of the pressure of the brake. The abutment 77 and stop 78 are provided in order that the brake may not be released before the clutch is actu ally engaged. With the construction rei'erred to the stop 72 and stop-carrying arm 74 may be moved, through the medium of the catch 86 and treadle rod, almost to the point of disengagement before the spindle 75 is rotated for releasing the brake.

In operation a washer is placed on the lower setting, die 3 and the material,-Whioh preferably has been previously punched, is threaded over the spindle 3. The machine is then putin operation by a depression of the treadle, the raceway being at this stage, in its gromet delivering position as shown in Fig. 2. The upper setting die 10 is moved downwardly and the spindle 18 enters the barrel of theendmost gromet which is retained at the delivery end of the raceway by the spring stop 35. During this time the shaft 27 has been rotated through the radius rod 26 and the finger 40 has moved to the right (Fig. 1) and encountered the lug 38 on the cam 84 but hitherto there has been no movement'of the raceway. Now however, the linger 40 begins to move the cam 34 and the raceway is swung outwardly allowing the spindle 13 to draw the gromet past the stop Downward movement of the upper setting die continues until the grolnet and washer have been set, during which operation the rounded end of the lower spindle .4 centers itself in the cupped end of the upper spindle 13 (Fig. 3), which yields into the upper setting die. After the setting operation the upper setting die 10 is elevated and meantime the raceway is maintained in its inoperative position until the linger 40 has moved from engaging the lug 38 to engaging the lug 36, whereupon the cam 34 is moved in the opposite direction and the raceway allowed to return to its groinet delivering position under the influence of the spring 51.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States is -1. A machine of the class described having, in combination, cooperating setting dies, i

a thrust receiving device for one of said dies, a spring disposed inv alinement with said device, an apertured adjustable stop for supporting said sprin from said device, and a spindle constructed and arranged to extend through the aperture in said stop and serving to adjust the at its side remote.

relative position of said setting die and thrust receiving device. I

2. A machine of the class described, having, in combination, a frame having a shoulder, cooperating setting dies, a thrust receiving device yieldingly. mounted within said frame and held positively against movement in one direction by said shoulder, and a bearing member for one of said dies adjustable with respect to said thrust receiving device and extending outside said frame.

3. A. machine of the class described, having, in combination, a frame, cooperating setting dies, an axially movable thrust receiving device mounted within said frame, said device being positively limited in its movement one direction by said frame, and apertured to receive one of said setting dies, and a bearing member adjustably mounted in said aperture and extending axially with respect to said thrust receiving device.

4. A machine of the class described, having, in combination, cooperating setting dies, and actuating means for moving one of said setting dies in a vertical path comprising a tonrle, a link connection between said toggle and setting die, and means for straightening said toggle for efi'ecting the setting operation, including a power driven shaft and a horizontally movable operating rod.

5. A machine of the class described, having, in combination, cooperating setting dies, and actuating means for one of saidsetting dies comprising a toggle, a radius rod for determining the path of one end of said toggle, a link connection between said toggle and setting die, and means for straightening said toggle for effecting the setting operation.

6. A machine of the class described, having, in combination, cooperating setting dies, and actuating means for one of said setting dies comprising a toggle, having a double member, means pivoted between the two parts of said double member for straightening said toggle, a double radius rod pivoted to the other member of said toggle, and a link connection between said toggle and setting die. I

'7. A machine of the class described, having, in combination, cotiperating setting dies, and actuating means for one of saidsetting dies comprising a. toggle, a horizontally movable operating rod, means for guiding one end of said toggle, a plunger guided for vertical reciprocation in alinement with the path of said guided end and carrying said setting die and a link connection between the guided end of said. toggle and said die carrying plunger. 1

8. A machine of the class described, hav ing. in combination, cooperating setting dies, at plunger carrying one of said dies guided for reciprocation, a toggle having one end fast and the other end guided for oscillation in a path approximately in alinement with the path of said plunger, and a link connecting said guided end and plunger.

9. A machine of the class described, hav ing in combination, cooperating setting dies, one of which ismounted for reciprocation, and actuating means therefor including an operating rod movable longitudinally in a path substantially at right angles to the path of said movable setting die, a double lever having spaced arms extending upon opposite sides of said rod and connected thereto and links connecting said double lever and movable setting die.

10. A machine of the class described, having in combination, settingdevices, a race. Way for delivering fasteners to said setting devices and means for adjustably supporting said raceway including a spindle, and an ec centric bushing thereon, rotatable for effects ing adjustment of the raceway transversely thereto and constructed and arranged to permit also adjustment of the raceway in a direction substantially parallel with said spindle.

11. A machine of the class described having, in combination, a reciprocatory setting die, toggle links for actuating the die, a shaft secured to one of the links and arranged to be oscillated when the link is moved, a crank arm secured to the shaft, an associated oscillatory slideway, a hopper, and an agitator located within the hopper and actuated by the slideway.

12. A machine of the class described, having in combination, setting devices, actuating mechanism therefor, a pivotally mounted raceway for supplying fasteners to said setting devices, an oscillatory cam having spaced projections and being arranged for movement about an axis at right angles to that of the raceway, a finger operated by said actuating mechanism and arranged for movement between said projections, being adapted to move said cam positively when it encounters one of said projections, and means interposed between said cam and raceway for moving the'latter out of operative position 13. 'A machine of the class described, having in combination, a vertically movable setting die, a raceway pivotally mounted on an axis located above the setting die and being curved at its delivery end to extend normally beneath and in alinement with the die, an actuating lever for, the raceway mounted upon an axis parallel to that of the raceway, and a guiding device for-the raceway having arms disposed one on each side of the raceway, the actuating lever being arranged to work in the space between the arms.

14. A machine of the class described, having in combination, setting devices, a raceway arranged for pivotal movement forsupways.

' ing, in combination,

plying fasteners to the raceway, an cscillacooperating guideways mounted on said frame, and means for adjusting said guide- 16. A machine of the class described, having, in combination, a frame, setting devices mounted thereon, ed thereon for oscillation in a'ivertical plane, means for adjusting said raceway, and provision for allowing a corresponding lateral movement of said raceway with respect to said pivot.

17. A machine of the class described, hava frame, setting devices mounted thereon, a raceway pivotally mounted on said frame, a leverfor moving said raceway, an adjustable connection 'between said lever and raceway, and a stop arranged to engage the lever and so determine the initial position of the raceway.

18. A machine of the class described, having, in combination, setting devices, actuata pivot, a raceway mount-- ing mechanism therefor, a raceway for'delivering vfasteners to said setting devices,

livering fasteners to said setting devices,

and means, including'a movable cam and a cam operating device connected with said actuating mechanism and operated thereby for moving said raceway, in a differently timed relation from the setting devices.

20. A. machine of the class described, having, in combination, setting devices, actuating mechanism therefor, a pivoted raceway, a cam mounted for oscillation about an axis extending transversely to that of the raceway and operatively connected therewith and the raceway after the setting devices have made a predetermined movement.

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

JOHN F. DAVEY. Witnesses HERBERT W. KENWAY, THOMAS LUND.

means for oscillating said cam to move

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