US1373500A - Gromet-setting machine - Google Patents

Description

P. R. GLASS.

GROMET SETTING MACHINE.

APPLICATION HLEQ JUNE 16,1916.

Patented Apr. 5, 1921'.

3 SHEETS-SHEET 1- Figtl.

P. R. GLASS.

GIIOMET SETTING MACHINE.

APPLICATION FILED JUNE 16, I9I6.

Patented Apr; 5, 1921.

3 SHEETSSHEET 2- I P. R. GLASS. GROMET SETTING MACHINE.

APPLICATION FILED JUNE 16, 1916.

Patented Apr. 5, 1921.

3 SHEETSSHEET 3.

UNITE STATES" r T-snroFF cE.

manner It. enass, or noorrrirnn, raassaorrnss'rrs assrenon, BY ivrnsnn ASSIGN- rsnnrs, so UNITED snore nacnrnnzer consoaarron, or rarnnson, nnwsnnsnY,

A COREOBATION OF NEW JERSEY.

enorannsn'rrrne MAcnrnE.

To alleohom it may concern: 7

Be it known that l, PEHLEY ll. Grass, a

citizen of the United States, residing at Brookline, in the county of Norfolk and State of ll/lassaclmsetts, have invented cei tain Improvements in Gromot-Setting Machines, of which the following description, in connection with the accompanying drawings, is specification, like reference characters-on the drawings indicating like parts in the several figures.

.This invention relates to machines for seting gromets and washers in sheet material. its object is to provide a machine of novel and improved organization possessing advantages in point of construction and operation over those heretofore known.

i great many machines for setting eyelets and gromets in a regular series and relatively close to each other, as in shoes and corsets, are provided with mechanism for punching the holes and for feeding the work step by step. On the other hand, when the eyelets or gromets are to be very widely separated from each other, it is not feasible to provide automatic feedino' mechanism and consequently in doing WOI'K of this kind it has heretofore been the practice to punch the holes by a separate machine when the work maybe conveniently transferred from the punching machine to the fastener-in sorting machine, but when the work is relatively large and clumsy and would entail considerable difficulty in transferring it from the punching machine to the fastenerinserting machine, as in the case of sails, awnings and floor coverings, it has been a practice to punch the holes with a hand punch in the vicinity of the fastener-inserting mechanism. This practice has facilitated the work to a considerable extent but has not resulted in the maximum degree of efficiency obtainable.

With the above problem in view I have found. that the work may be greatly facilitated and that a great deal of time may be saved by incorporating; into the fastenerinsorting machine as an integral part there of automatic punching mechanism capable of being operated independently of the fastener-inserting mechanism. Accordingly a feature of the present invention consists in a single machine comprising automatic punching. mechanism and automatic fas Specification of Letters Patent;

v Patented Apr. 5, 1921.

1916. Serial No. 103,994. 7

tenereinserting mechanism capable of being operated independently of each other and arranged in such relation to each otherithat no undue effort is required and no appreciable loss'of time is required to shift the work from the punching instrnmentalities to the fastener-inserting instrumentalities. Preferably, and as shown, the machine is provided with a shaft from 'whicheach of the said mechanisms receives its operating motion through the agency-of disconnectible clutch mechanism, the two clutch mechanisms being controllable independently of each other so that the punching mechanism -may be operated while the fastener-insertinp; mechanism remains at rest and vice versaJ V Another feature of the invention consists in novel mechanism for automatically operating the raceway of a fastener setting machine. froin delivering position early in the opera tive movement of the setting die and to move the racew'aytowarc delivering posi tion late in the reverse movement of the die; It is also desirable to maintain the raceway positively under control in all of its movements. These results are attained asherein shown by providing cooperating cam slot and roller, one on the raceway and the other on a reciprocatory member, the cam slot be ing shaped to impart the required movements to the race-way and being provided with means for confining the roller against movement away from the operative edge of the cam slot.

It will be apparent that many features of the invention are in no sense limited in their application to a machine for setting 'gromets and washers but may be embodied to good advantage in machines for setting eyelets or other fasteners.

These and other features of the invention will be best understood and appreciated from the following description of a'preferred embodiment thereof selected forpurposes of illustration and shown 'in the ac companying drawings, in which Figure' l is a view of the'machine in front elevation; y j' i I Fig. 2 is a view of the machine in side ele' vation; a n

Fig. 3 is 'a similar view of the clutch mechanism for the punch;

Fig. 4 is a view of the machine in sectional elevation showing the setting mechanism; v I V Fig. 5 is a view in elevation of the clutch for the setting mechanism;

Figs. 6 and 7 are views of the raceway operating mechanism and associated parts.

The machine is, provided with a main driving shaft and with a .reciprocatory punch and set arranged side by side and provided with separate clutch mechanisms by which either the punch or the set may be independently operated. the machine is organized to operate upon work presented at an angle of substantially this having been found a convenient arrangement in dealing with large pieces of heavy work whlch must be dragged into position before the machine and heldjln place while the machineis operating.

7 The main shaft 8 is journaled in the upper portion of themachine frame 2 and is provided with a driving pulley 10. A loose sleeve 20 having an eccentric portion formed on its left end is mounted upon the shaft 8 The adjacent to the hub of the pulley 10, loose ring 22 of a Horton clutch is journaled upon the sleeve 20 and is so related to the driving pulley that the sleeve 20 may be engaged with it for the purpose of operating the punch. I The ring 22 has a tooth 2 lshaped to be engaged by a spring plunger 26 carried in an arm 28 pivotally mounted upona stud atthe rear of the shaft 8. JThe arm 28 extends forwardly and is provided with a hole through which extends the upper end of treadle rod 30. The rod 30 is notched at its rear side and arranged to engage one edge of;the hole through the I 28 is immediately returned to operative position by a spring plunger 38 acting on the lower side of the arm.

Theeccentricpart of the sleeve 20 operates an eccentric strap'lO which at its forward end is connected to the knuckle joint of a pair of toggle links'll and 42. The

link a1 is pivoted on a transverse shafted mounted in the upper part of the machine frame: The lower link 42 isconnected to a collar 46 fast upon the plunger as which carries at its lower end a solid tubular punch 50. The punch 50 is rigidly but adjustably retained in the plunger 46 being backed up by a filling piece l9 which in turn is adjust- As herein shown ably supported within the plungerby an adjusting pin 51.

The punching die is formed in a cylindrical block 52'received in a socket in the work table 54'. A. graduated scale 55 extends along the rear side ofthe work table. placing any given point on the work opposite one of the graduations on the scale the desired distance between the edge of the work and a hole or between successive holes may be determined.

The punching mechanism above described is operated by depressing the treadle rod 30 whereupon the toggle 414:2 is straightened and" the punch 50 is depressed perforating. the work in combination with the punching die 52. After the punching operation the plunger is lifted to the position shown in Fig. 2 and the machine brought to rest by the action. of the stop arm 28 regardless of whether or not the starting treadle isheld down.

The shaft 8 carries a cam '12 in which runs-a roller 14 on a cam lever 16, the lever.

16 being fulcrumed upon a shaft 18 in the '90 machine frame. The cam lever 16 is con nected at its upper end through a link '58 to toggle links 60 and 62 similarly arranged to the toggle above described. It will be noted that the 'upper links of both toggles are made double as shown in Fig. 1. and engage the upper end of the lower link between them. The lower link 62 is connected to a collar 66 secured to a plunger 68 carrying at its lower end the topsetr 70. A tube 72 is arranged within the plunger 68 above the upsetting die 70 and bears atits upperend against the lower end of an adjusting pin 7 6 threaded intothe plunger. By turning the screw 76 the set may be adjusted down wardly in the plunger either to increase the settin pressure or to be located properly in A2?) e o o the required settmg position. A center spindle of the usual construction is yieldingly mounted in concentric relation with the upsetting die being backed up by a compression spring disposed within the plunger 68. i

The bottom set 86 is mounted in the upper end of a plunger 87 having a cam roller 88 at its lower end which is arranged to run upon the surface of a cam 89 pivoted upon a stud 90 to the frame. The plunger 87 has also a downwardly extending arm carrying a pin 92 disposed within a cam track 93 parallel to the surface of the cam 89 The cam 89 is connected through a link 94 to" the lower end of a long lever 96 pivoted upon the shaft 18 above mentioned. At its upper end the lever 96 carries a roller 97ar ranged to run in cam groove 98. The cam groove98 is so shaped as to bring the bottom set 86 to rest in its uppermost position with a washer in place upon it. After the setting operation has taken place the bottom hopper 104k are mounted upon a link 103. which extends between the upper ends of a pair of pivoted links 101 and 102. The link 103 has a pair of dowel pins arranged to cooperate with sockets in the raceway 100 and a hand nut 105 by which the raceway may be clamped in place upon the link. An. oscillatory movement is imparted to the washer raceway through a link 106 which is connected to thelower end of a two-part lever having at its upper end a cam roller arranged to run on a peripheral cam 112'. The cam lever is made in two parts to facilitate adjustment of the raceway relatively to' the lower setting tool. As shown the part 110 carries the cam-roll 111, and the part 108 is pivotally connected to link 106. Both parts are loosely mounted onstud 18,

he lower end of part 110 being forked and being provided with adjusting screws .113

j that abut against opposite edges of part 108 so as to transmit motion from one part to the other. A spring 115 is arranged to counteractthe cam 112. Thecam 112 is shaped to permit the raceway 100 to advance when the bottom set 86 is depressed and to retract the raceway after the bottom set has been elevated sufficiently to engage the endniost washer in the raceway.

Gromcts are supplied to the set by a raceway 6 which is pivotally mounted to swing about a pair of cone screws '83 set in cars formed. on the machine frame. A gromet hopper of usual construction is mounted upon the upper end of the raceway but has been omitted from the drawings.

At its lower end the raceway 6 is curved to extend beneath the set 70, being arranged to swing from the position shown in the drawings outwardly to an inoperative position out of the path of the set. To this end a plate 8 1 having a cam slot 85 is secured to the raceway and a-cooperatingroller 81 is mounted upon an arm which extends out wardlyfrom the plunger 68. The cam slot is so shaped that during the initial portion of the downward movement of the plunger 68 no motion is imparted to the racewayl Ass-00 however, as the topset has entered the endmost gromet the roller 81 encounters an inclined portion in the edge of the cam slot 85 which causes the raceway 6 to be swung outwardly to its inoperative position. During the remainder of the downward movement of the set the shape of the slot 85 is suchas to impart no further movement tothieraceway; In the upward movement of the plunger 68 the roller 81 moves idly to a point near the upperend of the slot 85 before it imparts any movement to the raceway, acting to shift'the raceway into delivering position just before the machine comes to rest;

It will be noted that the width of the slot 85 varies on account of the dissimilar character of its opposite edges and that throughout a portion of its length it is of greater width than the cam roller 81. In order to maintain the roller 81 positively in engagement with the proper edge of the slot aplate 150 having a cam slot 151 formed therein is movably mounted upon the rear side of the plate 84. The plate 150 is provided with a pair of inclined slots 152 into which project a pair of pins set in the plate 84, thepins and slots cooperating to limit, the movement of the plate 150'to a path substantially parallel to one of the inclined edges of the slot 85. The roller 81 projects both through the slot 85' and the slot 151 andthe latter slot is so shaped asto act upon onesurface of the roller 181 while the latter traverses the wide portion of the slot 85. The operation of this portion of the raceway operating -mechanism will beapparent from an inspection of Figs. 6 and 7 from whichit will be seen that, in

traversing the wide portion at'the upper end of the slot 85 in the downwardmove ment of the plunger, the roller 81 is "acted upon at itsr'ightside by the edge of the-slot 151 in the plate 150 and, near'the conclusion of the downwardrmovement, the roller 81 encounters a portion of the bottom of'the slot 151 and shifts the plate 150 downwardly and toward the right into the p'o'si tion shown in Fig. 7 In the upward move ment of the plunger the roller 81 passes into the wide portion of the slot 85 near the upper limit of its movement and is here acted upon at its left side by the opposite edge of the slot 151. In completing' its' up}- ward movements the roller 81 encounters the upper end ofjthe slot 151 and shifts the plate 150 upwardly and toward the left into its initial position.

When it isdesired't'o effect the setting operation the shaft 8 is set in motion by fclutch mechanism which will now be described. The ring of a Horton clutch is located upon the right side of the driving pulley 10 and is provided'with-a tooth 121 arranged to be engaged-by asprin'g pin 122 mountedin an arm 123 pivotally-mounted on the shaft 124. A spring 125 tends norfits normally over the pin -projecting from the arm 123.- WVhen the treadle ro'dis-a depressed the arm 123 is swung outwardly through the medium of this pin.

Continned depression of the treadle brings the tail of the piece 128 into engagement with an adjustable stop 132 set in a portion of the frame.

123 to return the clutch pin 122 to its operative position regardless of whether or not the treadle is released or held depressed.

A sleeve 140 provided with teeth 141 surrounds the shaft 8 and cooperates with the latch piece 142. pivoted on the pin 130 in the arm123. This catch prevents rebound of thering 120 when the tooth 121 encounters the stop pin122. Afspring 144: nor- 7 mally presses the latch 1&2 toward the col lar 140. a

The operation of the machine will be clear from the foregoing description butit may be briefly outlined as follows: The work is presented to the machine with the point at 7 which the first groinet and washer are to be set in line with the punch-50. The treadle rod is then depressed and the punch operates to perforate the work, being'bronght to rest in its uppermost position. :The work is then moved toward the left to-carry the pressed and the shaft Sand the cams carried- .by one of said clutch mechanisms to operate punched hole into position upon the bottom set86 to which a washerihas already been supplied by the raceway 100. The treadle rod connected to the arm126 is then dethereby are set in rotation. The topset 70 descends taking a gromet-from the raceway 6 which it forces through the hole in the 7 Work and the washer and against the upsetting surface of the set 86 thereby clenching the end of the gromet barrel upon the outer surface of the washer. The plunger" 68 is then elevated and the machine comes to rest with all parts in their initial position. v Having thus described'my invention, I

claim asnew and desire to secure by Letters.

Patent:

1. A fastener-setting machine comprising a frame having a work table and guideways perpendicular thereto and arranged in a series parallel to a possible path of feeding movement of'the work along the table, av punching tool and a settingtool arranged to slide in said guideways respectively, two disconnectible clutch mechanisms arranged in bearings in said frame, means controlled the punching tool, and means controlled'by the other clutchmechanism to operate the setting tool.

2; A'machine for settingfasteners, havingiin combination, a frame having a main shaft journaled therein, a pair of plungers arranged, for movement in parallel paths, one carrying a setting tool and the other a punching tool, a pair of toggle links for op This disengages the piece 128 fromthe pin 130, thus permitting the arm in each direction.

crating each of said plungers, one link'of each pair having a common fulcrum shaft,

and connecting mechanism between the shaft and the respective toggles 3, A machine for setting fasteners, having in combination, a reciprocatory plunger, a 'movable raceway, and, operating mechanism including a roller on one member and a slot in the other, said slot being wider than the roller for a portionof its length,

and a plate shaped to confine the roller while passing the wide portion of said slot.

4c. Amachine for setting fasteners, having v an edge inclined to the path of the plunger,"

and a slotted plate having an oppositely are ranged wide portion and inclined edge movably mounted adjacent to the slot first men; 3

tioned.

7' 6. A machine for setting fasteners, having,

in combination, a reciprocatory plunger, a movable raceway, and raceway operating mechanism including a roller on one member and a cam slot in the other, and means for changing the outline of the slot during the latter part of the movement of the plunger 7 A machine for setting fasteners, having-in combination, a reciprocatory plunger, a movable raceway, and raceway'operating mechanism including a roller and cam slot having its operative edges differently shaped and means for positively holding the roller in contact with different edges of the slot during the movements ofthe plunger in opposite directionsv r i V 8. A machine for setting fasteners, having in combination, a reciprocatory plunger having a roller, and a raceway having apair of relatively movable plates provided'with slots of different shapes through. both of which the roller on the raceway extends.

9. A machine for setting fasteners, having in combination, a reciprocatory plunger havinga roller, a raceway having a slot with a wide portion, and a-plate movably mounted on the raceway and having a narrow slot" so disposed as to confine the roller on the plunger when the roller is'located in the wide portion of the raceway slot.

10. A machine for setting fasteners, having in combination, a reciprocatory plunger having a roller, a raceway arranged to be 'moved toward and from the plunger at different points inthe path of the plunger, and a pair of cooperating cams for positively controlling the movement of the race-- Way at all times.

11. A machine for setting fasteners, having in combination, cooperating setting dies, a single operating shaft, toggle mechanism interposed between the shaft and one of said dies, an oscillatory cam for moving the other die, and a lever operated from said shaft for oscillating said cam.

12. A machine for setting fasteners, having in combination, a machine frame, a shaft extending transversely across the front of the frame, two toggle mechanisms each having one link mounted on said shaft, punching and setting devices arranged to be operated through said toggle mechanisms respectively, a driving shaft, and clutch mechanism for connecting either of said toggle mechanisms to said driving shaft independentl'y to operate the corresponding punching or setting device.

13. A machine for setting fasteners, comprising fastener-setting mechanism, a movable raceway for supplying fasteners thereto, a cam for operating the raceway, and mechanism for transmitting motion from the cam to the raceway, the latter said mech anism including relatively adjustable parts and screw-threaded means arranged to -ad just said parts so as to shift one limit of movement of the raceway.

14. A machine for setting fasteners, having in combination, an operating shaft, a pair of relatively movable dies operated from said shaft, a raceway for supplying gromets to one die movable transversely of the machine, a raceway for supplying wash-c die and having a cam track parallel to its periphery with connections thereto for retracting the plunger.

16. A machine for setting fasteners, comprising setting mechanism including a movable setting tool, an actuator, means for transmitting movement from said actuator to said tool, and means arranged to take the stress of said tool from said transmitting means when the tool is in the act of setting a fastener.

17. A" machine for setting fasteners, comprising cooperative setting tools, a movable raceway arranged to supply fasteners to one of said tools, a reciprocatory member, a camplate and a cam-roll one of which is carried 7 by the raceway and the other by said reciprocatory member, said cam-plate having a cam-slot provided with non-parallel sides in which slot said roll is received, and means arranged to maintain said roll in contact with said non-parallel. sides alternately as the reciprooatory member is moved back and forth.

18. A. fastener-setting machine compris-. ing a frame, a shaft journaled therein, a table arranged to sustain portions of the work in operative positions, two disconnectible clutch mechanisms carried'by said shaft, a punching tool and a setting tool both overhanging said work table and arranged to slide in hearings in said frame, means oper able by one ofsaid clutch mechanisms to operate the punching tool, and means operable by the other clutch mechanism to operate the setting tool.

19. A machine of the character described comprising a unitary frame, work-punching mechanism and fastener-setting mechanism both arranged in said frame so as to provide an unobstructed straight course from one to the other in which a piece of work may lie in operative position relatively to both said mechanisms simultaneously and so that a portion of the work may follow a substantially straight course from the punching position to the fastener-receiving position, a work table arranged to support the work in operative position relatively to both said mechanisms, and two disconnectible clutch mechanisms arranged in said frame so as to operate the first two said mechanisms respectively.

In testimony whereof I have signed my name to this specification.

PERLEY R. GLASS.

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