US2176304A - Eyeleting machine - Google Patents

Description

Oct. 11, 1939. e. E. KALMNG 2,176,304

EYELETING MACHINE Filed Aug. 6, 1938 Fig.1

4 Sheets-Sheet 1 JnvenTor Frederick E. Kcllning by W M22620. ATTys.

Oct. 17, 1939.

Filed Au 6, 1938 Fig.2.

4 Sheets-Sheet lnvenTor. Frederick E. Kolning A'rTy s.

Oct. 17, 1939. F. E. KALNING EYELETING MACHINE Filed Aug. 6, 1938 4 Sheets-Sheet 3 lnvenron Frederick E.Kulnin b fwlwzf ATTys.

' Oct. 17, 1939. Fl E. KALNING 2,126,304

EYELETING MACHINE Filed Aug. 6, 1938 4 Sheets-Sheet 4 a Patented Oct. 17, 1939 UNITED STATES PATENT OFFICE EYELETING MACHINE chusetts Application August 6, 1938, Serial No. 223,473

5 Claims.

, This invention relates to eyeleting machines and particularly to machines adapted to insert eyelets in the stick at the bottom of window shades.

The machine embodying the invention is provided with a punch for punching a hole through the stick and the hem of the shade in which the stick is located, and then inserting an eyelet into the hole thus punched and setting the eyelet.

One of the objects of the invention is to provide a novel machine adapted to accomplish these results but which is so constructed that the punching of the hole for the eyelet and the setting of the eyelet is accomplished while the shade remains in the same position.

' In the machine herein shown, the punch is situated below the work and is moved upwardly through the stick for punching the hole therein, there being a hold-down which has engagement :with the upper face of the stick during the punching operation. An eyelet-setting implement is employed situated above the work and adapted to insert the eyelet through the punched vhole and then to cooperate with an anvil beneath the work for setting the eyelet.

The punch and the eyelet-setting implement are in axial alignment with each other, and in order that the anvil may not interfere with the operation of the punch, I propose to mount the .anvil so that it can be moved from its operative 'position in alignment with the eyelet-setting implement to an inoperative position out of such alignment, and means are provided for moving the anvil into its inoperative position and out of the way of the punch when the latter is op- :erating to punch the hole in the shade stick and to move the anvil back into its operative position into alignment with the eyeleting-setting implement after the punch has been withdrawn so that when the eyelet-setting implement is operated, the anvil will be positioned to co-act with the eyelet-setting member to set the eyelet.

In order togive an understanding of the invention I have illustrated in the drawings some selected embodiments thereof which will now be described after which the novel features will be pointed out in the appended claims.

In the drawings:

Fig. 1 is a vertical sectional view through an apparatus embodying my invention;

Fig. 2 is a front view thereof with a portion broken out Fig. 3 is a top plan View;

Figs. 4 and 5 are fragmentary views showing the means for moving the anvil and the holddown from their operative to inoperative positions and vice versa;

Fig. 6 is a fragmentary vertical sectional view taken on substantially the line 66, Fig. 5, and 5 showing the operation of the punch in punching the hole through the shade stick, said figure showing the anvil in its inoperative position;

Fig. '7 is a somewhat similar fragmentary sectional View but illustrating the anvil in its op- 10 erative position and showing the operation of setting the eyelet;

Fig. 8 is a somewhat diagrammatic view illustrating the relative movement between the eyelet-setting member and hold-down member and 1 the anvil;

Fig. 9 is a fragmentary underside view of the arm 35.

The operative parts of the machine are mounted in a suitable frame I which is provided with a work-supporting table or portion 2 on which the end of the shade 3 which carries the usual stick 4 may be received for the operation of punching a hole in the stick and setting an eyelet 44 therein.

formed in a portion 8 of the frame. The punch is shown in Fig. 1 in its retracted or lowered position and the punch is given an upward movement for punching the eyelet receiving hole in the stick 4. This punch is shown as receiving its vertical reciprocating movement by means of a cam member 9 mounted on a shaft I0 journaled in the frame, said cam member having a cam groove H in which is received a follower l2 that is carried by a lever l3 pivoted at one end to the frame I as shown at M and at its other end is connected by a link Hi to collar or head l6 secured to the lower end of the stem 6. The cam groove II has the high portion H and the low portion 18 and said cam rotates in the direction of the arrow in Fig. 1. As the follower 5 I2 passes from the high portion ll to the low portion I8 of the cam, the punch will be raised and forced through the stick 4, as shown in Fig. 6, and will be withdrawn into its lowered position as the follower passes from the low portion 5 to the high portion of the cam.

l9 indicates a hold-down member situated above the work and which engages the stick 4 to hold the latter from upward movement while the punch is being forced through the stick. This 5 hold-down member I9 is provided with a punchreceiving opening 2|] adapted to receive the end of the punch (see Fig. 6) as the latter is forced through the stick.

If the stick 4 is a relatively thin one, it may not fill the space between the work support and the hold-down, in which case the stick will have a slight upward movement as it is engaged by the upwardly moving punch, such upward movement being limited by the hold-down.

The eyelets 44 are delivered to the stick 4 and are set therein by the cooperation of an eyeletsetting implement 2| operating above the Work, and an anvil 22 situated beneath the Work. The eyelet-setting implement is in the form of a stem or rod having a reduced eyelet-receiving portion 23 at its lower end which is adapted to enter the bore of the eyelet or tubular rivet, said implement 2| being provided with the downwardly facing shoulder 24 against which the head end of the tubular rivet rests. 25 indicates a spring carried by the eyelet-receiving portion 23 and which provides sufficient frictional engagement with the eyelet to retain the latter thereon.

The eyelets are fed singly from a magazine to the eyelet-setting implement 2| by means which will be presently described.

The eyelet-setting implement 2| has a vertically reciprocating movement, for placing an eyelet in the punched hole in the stick 4 and setting said eyelet. Said eyelet-setting implement 2| is situated in axial alignment with the punch 5 and it is carried by an arm 26 extending from a head 21 that encircles and has vertical sliding movement on a vertically extending shaft 28 which is journaled in the frame. The eyeletsetting implement 2| is given its vertically reciprocating movement by means of the same cam groove II as that which gives movement to the punch .5. The head 27 has a link 29 pivotally connected thereto at 30 and the lower end of said link is pivotally connected at 3| to a lever 32 that is pivoted to the frame at 33. This lever 32 has a follower 34 which is received in the cam groove II, and as the follower 34 passes from the high portion ll to the low portion N3 of the cam groove, said eyelet-setting implement 2| will be moved from its raised position into its lowered or eyelet-setting position shown in Fig. '7.

In the present invention the shade and its stick 4 remain stationary during the entire time that the hole is punched in the stick and the eyelet is set in the hole, and to provide for this, the anvil 22 and the hold-down H! are mounted so that they can be moved into and out of operative position.

For instance, when the punch 5 is operating to punch the hole in the stick 4, the hold-down I9 is in its operative position in which its punch receiving-opening 20 is in alinement with the punch. At this time, the anvil is in its inoperative position out of the path of movement of the punch.

When the eyelet is to be set the anvil is moved into operative position in axial alinement with the eyelet-setting implement 2| and the holddown I9 is moved out of operative position and out of the path of downward movement of the eyelet-setting member 2 The anvil 22 is shown as mounted on an arm 35 of a rocker 36, the latter having a hub portion 3i which is mounted for turning or rocking move ment in the portion 38-of the frame. The holddown I9 is carried by another arm 39 which is rigid with the hub 31 at its upper end. Said arms 35 and 39 and hub 31 thus constitute a unitary rocking element which carries both the anvil 22 and the hold-down l9.

The relative position of the hold-down I9 and anvil 22 is such that when the hold-down with its punch-receiving opening 29 is in axial alinement with the punch, the anvil will be out of the path of movement of the punch and will be in its inoperative position. A slight turning movement of the rocker will swing the hold-down |9 into its inoperative position out of the path of movement of the descending eyelet-setting implement 2| and will bring the anvil into operative position in axial alinement with said implement as shown in Fig. 7. For rocking the rocker, the cam member 9 is provided on its periphery with a cam groove 49 in which is received a follower 4| depending from the end of the rocker 36. This cam groove 49 is shaped to give the rocker 36 its rocking movement in proper timed relation with the operations of the punch and the eyeletsetting implement 2|. The operation of punching the hole and setting the eyelet therein may be briefly summarized as follows:

The shaft I is preferably operated by a one revolution clutch (presently to be described) which brings the parts to rest after each oper-- ation in the position shown in Figs. 1 and 2, with the punch in its lowered position and with the eyelet-setting implement 2| in its elevated position.

At this time also the rocker 35 is positioned so that the punch-receiving opening 29 is in alinement with the punch and the anvil 22 is out of the path of movement of the punch.

The operator then places the stick end of the shade 3. on the work support and positions it against the gauge member 42. The machine is then started and as the cam 9 rotates clockwise,

Fig. 1, the follower |2 will be carried from the high portion I! to the low portion |8 of the cam thus raising the punch into the position shown in Fig. 6, and punching the hole through the stick 4 and shade, the end of the punch entering the aperture 29 as it emerges from the stick. The arm 35 of the rocker which carries the anvil 22 is provided with an opening 43 of a size to receive the stem 6 of the punch and when the rocker is in the position shown in Figs. 1 and 4, said opening 43 is in alinement with the guiding opening 1 in the frame so that the stem 6 of the punch will pass into the opening 43 as the hole is being punched in the stick.

When the cam 9 has made approximately a. one-half revolution, the punch will have been returned to its lowered position and the cam groove II will have been brought into such a position that the follower 34 is about to pass into the eccentric portion of the cam groove.

At this time an eyelet has been supplied to the eyelet-receiving portion 23 of the eyelet-setting member 2|, as will be presently described, and the rocker 36 has been turned to carry the holddown I9 out of the path of movement of the eyelet-setting member 2| and to bring the anvil 22 into axial alinement with said implement. As the eyelet-setting member descends, it carries the eyelet 44 into the punched hole and during the final downward movement of the implement 2| said implement co-acts with the anvil to set the eyelet as shown in Fig. 7.

As the cam 9 completes its revolution, the eyelet-setting implement 2| is raised into its initial position shown in Fig. 1. The eyelet-receiving portion 23 of the eyelet-setting member 2| is in mally projects beyond the member 2|. This plunger 23 is acted on by a spring 91 which normally tends to project it outwardly and its spring impelled movement is limited by the engagement 98 of the plunger with the end of a sleeve 99 which is screw-threaded into the lower end of the member 2 I, said sleeve having the eyeletsetting face 24 thereon. The plunger 23 is of sufiicient length to project through a short eyelet and during the eyelet-setting operation, the end of the plunger will engage the upper surface of the anvil and the plunger will thereby be retracted as shown in Fig. '7 as the lower end of the eyelet is flanged outwardly by the anvil. By means of this construction it is possible to use the'device for setting eyelets of various lengths. The eyelets 44 are delivered singly to the eyeletsetting implement 2| from a magazine 45 which may have any suitable or usual construction.

This magazine is provided with a delivery chute 46 having a slot in its bottom through which the stems of the eyelets 44 depend. Situated within the magazine 45 is an oscillatory brush element 41 of usual type by which the eyelets in the magazine are agitated and which causes them to be delivered into the delivery chute 46 with their stems depending through the slot in the bottom of the chute.

The chute 46 is provided at its end with a discharge opening 48 through which the eyelets 44 are delivered singly and the magazine and its chute are mounted for vibrating movement so that the discharge opening 48 is periodically brought into a position to present an eyelet 44 to the eyelet-setting implement and then is retracted. 96 indicates a spring arm which is secured to the chute 46 and which acts as a retainer toretain the end eyelet in the chute. When the chute 4 6 is retracted after the end eyelet has been picked up by the plunger 23, the spring arm 96 will yield to allow the eyelet to be carried out from the end of the chute, and after said end eyelet has thus been discharged, the spring arm returns to its normal position to retain the other eyelets in the chute. The magazine is mounted on the upper end of an oscillating shaft 49 that is journaled in the frame, said magazine having an extension in the form of a hub into which the upper end of the shaft 49 extends, said hub I! being made fast to the shaft. This hub rests on a boss I02 with which the frame I is provided. The lower end of the shaft 49 has an arm 50 rigid therewith which is connected by the link to the arm 35 of the rocker 36 so that the magazine and its delivery chute 46 have an oscillating .movement synchronously with the rocking movement of the rocker 36.

It will be noted from Fig. 1 that the cam groove H is so shaped that one of the eccentric portions connecting the high portion IT with the low portion la is a stepped portion, that is, said cam groove is formed with the short abrupt step portion |5| and with a short portion 52 concentric with the shaft I0 and then a gradual eccentrically curved portion 53 which leads to the low portion 8.

This two-step portion of the cam groove performs no function so far as the operation of the punch 5 is concerned, but when the cam 9 has been turned into a position in which the follower 34 has the same position in the cam groove that the follower |2 has shown in Fig. l, the rocker 36 and the discharge chute 4'5 will be in the position shown in Fig. 5 in which position the discharge opening 48 of the chute is in alinement with the eyeletsetting implement and the end eyelet will be alined with the said implement. As the follower 34 moves through the short curved portion |5| of the cam groove. the eyelet-setting implement 2| will be given a slight downward movement which will cause the plunger 23 to enter the end eyelet 44 in the chute 46. As the follower 34 is moving over the concentric portion 52, the cam groove 40 shifts the position of the rocker 36 and the magazine and its chute 46 into the position shown in Fig. 4, and during this movement, the end eyelet, which is now held on the plunger 23 is carried out of the discharge opening 48, the spring 96 yielding to permit the end eyelet to pass. The friction of the spring 25 against the interior wall of the eyelet retains it on the plunger until said eyelet is set.

The movement of the rocker 36 from the position shown in Fig. 5 to that shown in Fig. 4, or from the position shown in Fig. 6 to that shown in Fig. 7, will bring the anvil 22 into alinement with the eyelet-setting implement 2| and as the cam 9 continues to rotate and as the follower 34 travels down the eccentric portion 53 of the cam groove, said eyelet-setting implement 2| will be i The cam shaft |0 may be operated from any '1 suitable source. There is shown herein a motor 56 which operates a shaft 5'! having a worm 58 thereon meshing with a worm gear 59 on the shaft ID.

The one-revolution clutch comprises a hub 60 fixed on the shaft Ill and provided with a plurality of radial clutch projections 6|. The cam 9, which is loose on the shaft l9, has a clutch dog 62 pivoted to one side face thereof at 63. This clutch dog 62 is acted on by a spring 64 which tends normally to turn the clutch dog 62 in a direction to bring the end 65 thereof into the path of movement of the clutch pins 6|.

When the clutch is disengaged, the clutch dog is held in its inoperative position by a clutch controlling pin 94 which is acted on by a spring 95 tending normally to hold it in its dog engaging position.

To cause engagement of the clutch, the clutch controlling pin 94 is moved to the right, Fig. 2, thereby withdrawing the inner end from engagement with the clutch dog 62, and as soon as this occurs, the spring 64 swings the clutch dog into position to be engaged by one of the clutch pins 6| thereby causing the cam 9 to be rotated with the shaft I0.

When the clutch controlling pin 94 is released, it returns to its operative position shown in Figs. 1 and 2 and when it is in this position, the cam face 66 of the clutch dog 62 will be brought into engagement therewith during the rotary movement of the cam 9. As the cam surface 66 moves over the clutch controlling pin 94 during further rotation of the cam, the clutch dog will be swung backwardly about its pivot 63 out of engagement with the clutch pin 6|, thereby disconnecting the clutch. The clutch dog 62 is provided with the hook-shaped stop portion '61 which engages the pin 94 as the clutch dog is disengaged from the clutch pin 6|, thereby bringing the cam and the driven parts of the machine to rest in a pre-determined position.

The clutch controlling pin 94 can be Withdrawn by hand, it having a finger piece 68 extending beyond the frame I so that it can be readily grasped, or said clutch controlling pin may be withdrawn to cause engagement of the clutch by means of a suitable treadle.

For this purpose, there is provided a rock shaft 59 journaled in a bracket "iii of the frame and having an arm ll connected by a link 12 to a suitable treadle. This rock shaft also has another arm 13 carrying at its upper end a dog 14 having a screw projection 15 adapted to engage a flange l6 with which the stop pin 94 is provided. When the treadle is depressed and the arms H, 73 are turned clockwise in Fig. 2, the engagement of the screw projection 5 with the flange 15 will cause withdrawal of the clutch pin 94 and will thus throw the clutch into engagement.

Continued depression of the treadle will cause the screw projection 15 to wipe by the flange 16 thus allowing the clutch pin 9 to be returned to its operative position by its spring 95 ready to disengage the clutch as the cam completes its revolution.

The dog Hi is pivoted to the arm 13 as shown at 71, said dog having a nose l8 adapted to engage a stop surface '19 on the arm whereby counterclockwise turning movement of the dog on its pivot is prevented. 80 is a spring acting on the dog and tending normally to hold it in the position shown in Figs. 1 and 2. However, when the treadle is released and the arms ll, 13, return to their normal position shown in Fig. 2, the engagement of the stop pin i5 with the outside face of the flange it will turn the dog 74 against the action of the spring 80 and will allow said dog to wipe by the flange l6 and thus assume its operation position shown in Fig. 2.

The back stop 42 is carried on the end of a rod 82 which extends to and through the back side of the frame (see Fig. 1). The outer end of the rod has fast thereto a. screw-threaded sleeve 83 which has screw-threaded engagement with the frame. The purpose of this screwthreaded. sleeve 83 is to provide for adjustment of the back stop 42 toward and from the front of the machine to accommodate sticks of different widths. The sleeve 83 is provided with a thumb piece 84 by which it may be turned.

The brush 4?! in the magazine 45 is carried by a rock shaft 85 having an arm 86 fast thereto. This arm is connected by a link 81 to an eccentric pin 88 on a cap member 89 that is fast on the outer end of the shaft ii]. The rotation of the shaft it] thus operates to oscillate the brush.

It will be noted from Figs. 1 and 7 that the punch 5 is not entirely withdrawn from the arm 35 when said punch is at its lowest position, and in order to provide for the shifting movement of the arm to bring the anvil from the full line position to the dotted line position, Fig. 8, said arm is formed on its underside with a channel 99 which faces and connects with the opening 43. When the arm 35 is swung from the position shown in Fig. 5 to that shown in Fig. 4, the upper end of the punch 5 enters and occupies said channel 99.

While I have illustrated herein a selected embodiment of the invention, I do not wish to be limited to the constructional features shown.

I claim:

1.An eyeleting machine having work-supporting means, a vertically moving punch beneath the work-supporting means, a vertically moving eyelet-setting implement above the work-supporting means and situated in alinement with the punch, means to actuate the punch and the eyelet-setting implement sequentially, an anvil beneath the work-supporting means cooperating with the eyelet-setting implement to set the eyelet, and means to move said anvil into an inoperative position out of the path of the punch when the latter is actuated, and back into operative position for cooperation with the eyelet-setting implement when the latter is actuated.

2. An eyeleting machine comprising work-supporting means, a vertically moving punch beneath the work-supporting means, a vertically moving eyelet-setting implement above the work, said punch and eyelet-setting implement being axially alined, means for actuating the punch and eyelet-setting implement sequentially, a hold-down above the work having an opening to receive the punch as it is formed through the work, an anvil below the work cooperating with the eyelet-setting implement to set the eyelet,-

and means to move the anvil into inoperative position out of the path of the punch and the hold-down into operative position'to receive the punch when the latter is actuated and to move the anvil into operative position to cooperate with the eyelet-setting implement and the holddown into an inoperative position out of the path of movement of the eyelet-setting implement when the latter is actuated to set the eyelet.

3. An eyeleting machine comprising work-supporting means, a vertically moving punch beneath the work supporting means, means to actuate the punch to punch a hole through the work, an eyelet-setting implement above the work situated in axial alinement with said punch, means to deliver eyelets singly to said implement, an anvil member beneath the work movable from an operative position in alinement with the eyelet-setting implement to inoperative position out of the path of movement of the punch and means to move the anvil into its in operative position when the punch is being actuated and into its operative position when the eyelet-setting implement is being actuated.

4. An eyeleting machine comprising work-supporting means, a vertically moving punch beneath the work-supporting means, means to actuate the punch to punch a hole through the work, a hold-down above the work having an aperture to receive the punchas it passes through the work, said hold-down being mounted for movement from an operative position in alinement with the punch to an inoperative position out of such alinement, an eyelet-setting implement above the work situated in axial alinement with the punch, means to deliver eyelets singly to said eyelet-setting implement, an anvil member beneath the work movable from operative position in alinement with the punch to an inoperative position out of alinement therewith, and means to move the anvil into its inoperative position and the hold-down into its operative position when the punch is being actuated, and to move the anvil into its operative position and the hold-down into its inoperative position when the eyelet-setting implement is being actuated.

5. An eyeleting machine comprising work-supporting means, a vertically moving punch beneath the work-supporting means, a vertically moving eyelet-setting implement above the worksupporting means, means for presenting eyelets singly to the eyelet-setting implement, means to give said implement an initial downward movement sufficient to receive an eyelet from said eyelet-presentingmeans and then a final downward movement to place the eyelet in the punched hole, an anvil cooperating with the eyelet-setting implement to set the eyelet, said anvil being movable from an inoperative position out of alinement with the eyelet-setting implement into an operative position in alinement with said implement and means to move the anvil into its inoperative position when the punch is being actuated, and into its operative position when the eyelet-setting implement is given its initial movement.

FREDERICK E. KALNING.

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