US2315769A - Bolt and rivet making machine - Google Patents

Description

April 6, 1943. w. J. CAR-NEY BOL T AND RIVET MAKING MACHINE 4 Sheets- Sheet 1 kfaa/vzegyv frame/z Zia/22,

Filed Sept. 21, 1942 A p 6, 1943. w. J. CARNEY' BOLT AND RIVE'I MAKING MACHINE Filed Sept. 21, 1942 4 Sheets-Sheet 2 April 1943- w. J, CARNE Y BOLT AND RIVET MAKING MACHiNE Filed Sept. 21, 1942 4 Sheets-Sheet 3 17206712 07 JCar/zey April 6, 1943. w. J. CARNEY BOL'I' AND RI'VET MAKING MACHINE 4 Sheets-Sheet 4 Filed Sept. 21, 1942 Patented Apr. 6, 1943 UNETED STATES .TENT FEECE sour AND mvn'r MAKING MACHINE William J. Carney, Chicago, Ill. v Application September 21, 1942, Serial No. 459,071 7 9 Claims- (01.10-12) work-feeding means which are individual to the headers.

To the attainment of these ends and the accomplishment of other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts, hereinafter more fully described and claimed and shown in the accompanying drawings illustrating this invention, and in which:

Fig. 1 is a top plan view of a machine of this character, constructed in accordance with the principles of this invention.

Fig. 2 is a side elevation of Fig. l, with parts omitted, and parts broken away.

Fig. 3 is a detail sectional View as taken on line 3-3, Fig. 1.

, Fig. 4 is a detail horizontal sectional view, taken on line l4, Fig. 3.

. Fig. 5 is a right-hand end elevation, with parts broken away, of Fig. 1.

, Fig. 6 is a transverse sectional 'view, with parts omitted, as'taken on line 6-6, Fig. 1.

Fig. 7 is a detail sectional view taken on line 1-], Fig. 1.

. Fig. 8 is a, detail sectional view taken on. line 8-8, Fig. 3.

Fig. 9 is an enlarged detail plan view, with parts omitted and parts in section, of the anvil and ejecting means.

Fig. 10 is a top plan view of Fig. 12, showing the cut-off knife and the manner of supporting the cut-off piece.

, Fig. 11 is a view similar to Fig. 10, showing the cut-off piece of material in position between the die and the hammer head.

12 is a side elevation of Fig. 10.

In the present. exemplification of this invention, the machine consists, essentially, of a frame or body [5 which is supported by suitable legs i6, and may be of any desired size and configuration.

The body I5 is provided with two spaced parallel channels or grooves IT, in each of which a slide I8 is reciprocable. This slide is of a configuration to conform to the contour of the grooves I1, and each is preferably provided with laterally projecting side portions l9 thatrest upon guide-ways 20, wearing. strips 2i being preferably provided under the portions I9. The slides are held in position and against displacement, preferably by means of strips 22 secured to the body of the frame and projecting over the edges of the slide, the strips themselves being held in position preferably by means of fastening bolts 23.

J ournaled in the frame to extend thereacross is a shaft 24 provided with cranks 25 disposed at an angle to each other, and connected to each of the cranks is a pitman rod 26 secured thereto in any suitable manner, and mounted upon the free, end of each of these pitmans is a bearing head 21, preferably of cylindrical formation. Each of these heads 2'! is seated in a block 28 which is disposed in a recess within the slide l8, and the head 21 has a recess 29 in th block 28 to rest upon a bearing surface 30. The block 28 is held against displacement with respect to the slide I8 by means of members 3| secured to the slide and extending over the edges of the block.

The numeral 32 designates bearing members which contact with the edge of the block 28. on opposite sides of th recess 29. A screw 33 is threaded through the members 32 and tends to draw these members together or to separate them, according to. the direction' of rotation of the screw 33. Whenthey are drawn. together, they contact the inclined faces 34 on the block 28, to force the block againsta wedge-shaped member 35. This member 35 is inserted into the recess in the slide l8 occupied by the block 28, andbetween the rear face of the block and the wall of the recess, and is provided with a flange 36, through which screws 31 pass. These screws are adapted to move the wedge-shaped member 35 in one direction or the other, according to the direc tion in which the flange 36 is operated. When one screw is operated, it draws the wedge-shaped member in position so as to secure th block 28 to the slide 18. Should the machine become jammed during operation, the wedge-shaped member 35 is moved in the opposite direction, so as to loosen the block 28 with respect to the slide l8, after which the wedge-shaped member 35 may be drawn back into position.

' Carried by each of the slides I 3 and secured thereto in any suitable manner, is a hammer head or upsetting tool 38.

Supported by the frame is a die 39 which may be removably held in position in any suitable manner, and one of these dies is provided for each of the slides l8 and its respective hammer head or tool 38. The dies are provided with an opening 45 therethrough, in alinement with the hammer head or tool 38, and movable in the opening 40 is an ejector pin 4|, preferably provided with a head 42. In the rear of each of the ejector pins 4| is an anvil member 43 which is preferably provided with a rounded extremity 44 that abuts the head 42 of the ejector pin 4|.

A rocker member 45 is pivotally mounted intermediate its ends, as at 46, upon the frame |5 so as to move upon a vertical axis. One end 41 of this member 45 is positioned toengage the end of the anvil member 43, and is also positioned to engage an adjustable stop device 48. The other end of the member 45 is positioned to be engaged by a slide or bar 49 which is suitably supported, and which carries, at its opposite end, a roller 50 that operates in a cam 5| secured to the shaft 24. When the shaft 24 is rotated, the slide 49 will .be reciprocated. During its movement in one direction, it will engage the end of the member 45 and rock the same forwardly about its pivot 45, causing the end 41 of the member 45 which engages the end of the anvil member 43 to move forwardly, and thereby advance' the ejector pin 4| to eject the work from the die 39. When ejected, the finished work will fall through an opening 52 of the machine into a suitable receptacle.

When the slide 49 is moved backwardly by the operation of the roller 50 in the cam groove 5|, the tendency of the slide or bar 49 is to move awayfrom the member 45, but at that time, and as will be described, the anvil member 43 will be forced into engagement with the end 41 of the member 45, thereby moving the member 45 in the opposite direction about its pivot, until the end 41 strikes the adjustable stop 48, for a purpose to be described.

Mounted upon the frame of the machineare work-feeding rolls 53 (see particularly Fig. 5), one pair for each of the slides, and between which co-operating rolls the work is fed, preferably in the form of a bar or rod. These work-feeding rolls are operated by means of intermeshing gears 54 individual to the pairs of feeding rolls, and which are carried by the shafts 55 upon which the rolls 53 are mounted. Secured to one of the rolls of each pair, to rotate therewith, is a ratchet wheel 55 with which a pawl 58 mounted upon an oscillatable member 58 co-operates. This member 58 is pivotally mounted, preferably upon one of the shafts 55, and is oscillated about its pivot by means of a bar or rod '51 pivotally connected thereto, as at 59. The other end 50 of the bar or rod 51 is adjustablymounted in a guide-way 6| in a member 52, which latter is pivotally supported intermediate its ends, as at .63, upon a portion of the frame '|5. Carried by the other end of the member 62 is a roller 64 which engages a suitable cam, preferably the cam 5| carried by the shaft 24. When the shaft 24 is rotated, the cam 5| engaging the roller '64 on the member 62, will rock the latter about its pivot 63, and thereby impart a reciprocable movement to the bar or'rod 51.. This in turn will rock the member 58 about its pivot 55, and cause the pawl 58*, which co-operates with the ratchet wheel 55, to move one step in the direction to feed the material between the feeding rolls 53,

By adjusting the end 66 of the bar or rod 51 in the guide-way 6| and securing it in its adjusted position in any suitable manner, the extent of rotation of the ratchet wheel 56 and, consequently, the feeding rolls 53 may be varied to vary the amount of material fed to the machine. The tension of the feeding rolls may be adjusted in any suitable manner, such as by means of a tension adjusting device 65.

Extending through the die 39 and in alinement with the bite of the feeding rolls 53, is a tubular member 51 through which the stock or supply of material is fed to the cut-off device and which tubular member is also in proximity to the path of the reciprocatory movement of the hammer head or tool 38.

A cut-off device 68 is reciprocable across the end of the die 33 and the end of the tubular member 51, so that when the material is fed through the tubular member 81 by the feeding rolls 53, uponoperation of the cut-off device 68, a portion of the material will be severed from the stock. The extent of the feeding movement of the stock is controlled by the feeding rolls 53 and the operating ratchet mechanism therefor. The end of the stock will engage an adjustable stop 65 at the time when the slide I8 is in its rearmost position, as shown to the left in Fig. 9.

This cut-off device may be of any desired or suitable construction, and is mounted upon a slide Hi, and is operated by means of a member 7 1| which is pivotally mounted intermediate its ends, as at 12, upon a suitable member or bracket. A pin or projection 13 is carried by the member 1|, and projects between spaced collars 14 carried by the slide 15.

The member 1| is operated by means of .a rod or bar 15, one end of which is pivotally connected, as at 15, to the member 1|. and has connected with it, adjacent its free end, a roller 11 which operates in a groove of a cam 18. When the cam 18 is rotated, the rod or bar 15 will be reciprocated, and this will impart an oscillatory movement to the member 1|, to cause the cutoff slide 10 to be reciprocated.

In order to support the free end of the bar or rod 15, there may be provided an enlargement 19 (see particularly Fig. 2) thereon, which is provided with an opening in which is mounted a bearing block 3| that has bearing upon theshaft 24. The bar or slide 49 (see particularly Fig. 2') is preferably provided with an enlarged portion 82 having an opening 33 therein, so as to permit a connection between the cutter carrying slide 15 and the member 1|.

In order to support the cut-off portion 84 of the stock and carry it from the position in which it was severed from the stock as it passed through the tubular member 61 (see particularly Figs. 9 to 12) and move it into a position Where it will be in alinement with the hammer head or tool 33, to be forced thereby into the opening '40 in the die 39 and against the ejector pin 4|, any,

suitable means may be provided, such as a finger 85 which is yieldingly supported, as at 86. This finger co-operates with the cutting area of the cutter 68, which latter preferably forms a recess 81 in the edge of the cut-off device, and the finger extends over the work 84 so that when the portion is severed from the stock, it will be held in this position until such cut-off portion has been moved by the cut-off device 63 into a position to be engaged by the hammer head or tool 38 and forced thereby into the opening 40 in the die as.

A the cut-off device is advanced, the finger 85 will yield to pass over the work, and then moves with the cutter to hold and carry the cut-ofi piece 84 forwardly. When the cut-oif piece is in this position, the hammer head or tool 38 will advance to move the stock 84 into the opening 46 in the die, and the cutter slide 10, with the cutter thereon, will be withdrawn. After a portion of the work 84 has been forced into the die, the cutter device is drawn back and th finger 85 will yield and disengage the work.. As the tool 38 forces the stock 84 into the die, the stock, when it en:-

gages the end of the ejector pin 4|, will force the latter backwardly, and also the anvil member 43, until it moves the member 45 about its pivotsufficiently to cause the end 4'! thereof to e gage the stop 48. This will occur at a time when a portion of the stock 34 projects in front of the die 39.

Upon further operation of the slide l8 and the tool or hammer head 38 in the same direction; the projecting end of the stock will be upset, as at 81 (see Fig. 9) to form a head on the end of the stock. This will occur for the reason that when the end 4! is arrested in its movement under the influence of the anvil 43, the anvil will become stationary,

while the slide l8 and hammer head or tool 38 advance forwardly to form a head. As the slide 58 recedes, th slide 49 will be advanced by the operation of the cam 51 upon the roller 50, thereby swinging the member 45 from the position shown at the right-hand side of 9 to the position shown at the left-hand side of the same figure. Upon this movement of the member 45, the anvil 43 will be advanced, as will also the ejector pin 4 l. to eject the work from the die 39 to a position that it will fall through the opening 52 in the frame.

The cranks 25 on the shaft 24 are arranged in opposition to each other, so that the slides l 8 and the hammer heads or tools carried thereby will be simultaneously operated in opposite directions. The feeding mechanism for the stock will also be alternately operated.

It will therefore be manifest that, with this improved construction of machine, there is provided a dual header, resulting in a continuously operating machine, with the result that the speed of the operation of the machine will be increased and the cost of production decreased.

Further, this improved construction and operation is equally well adapted with equal efficiency for use in any kind of heading equipment, whether the equipment or machine is a solid die, or open die header, and also whether the machine be of a single stroke, double stroke, or triple stroke operation.

While a single slide, with its opera-ting mechanism and associated parts, has been herein specifically described, it is, of course, understood that the construction and operation of th other slide are the same, and therefore such a specific description of one will apply equally to both of them.

While the preferred form of the invention has been herein shown and described, it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts. within the scope of the claims, without departing from the spirit of this invention.

What is claimed as new is:

1. In a machine of the character described, two work operating slides simultaneously reciprocable in opposite directions, work holding dies individual to the slides, means individual to the dies for feeding stock thereto, means individual to the dies for severing said stock into predetermined lengths, means individual to the last said means to position the severed stock with relation to the respective die and slide, an operating shaft common to said slides, feeding, severing and positioning means for operating them, means individual to the dies for ejecting the work therefrom, and means whereby the size of the resultant product in the dies may be varied while the extent of movement of the slides remains constant.

2. In a machine of the character described, two work operating slides simultaneously reciprocable in opposite directions, work holding dies individual to the slides, means individual to the dies for feeding stock thereto, means for severing .said stock into predetermined lengths, means to position the severed stock with relation to its re spective die and slide, an operating shaft common to said slides, feeding, severing and positioning means for operating them, means individual to the dies for ejecting the work therefrom, the said stock feeding means embodying mechanism for imparting a step-by-step movement thereto, and

means for varying at will the size of the product in the dies while the extent of movement of the respective slides remains constant.

3. In a machine of the character described, two work operating slides simultaneously reciprocable in opposite directions, work holding dies individual t0 the slides, means individual to the dies for feeding stock thereto, means for severing said stock into predetermined lengths, means to posi tion the severed stock with relation to the respective die and slide, an operating shaft common to said slides, feeding, severing and positioning means for operating them, and means individual to the dies for ejecting the work therefrom, the said ejecting means embodying an anvil element movable with respect to the die, a rocking member for controlling the movementof said anvil element, and an adjustable stop to be engaged by said element for limiting the movement of said rocking member under the force of the work forming stroke of the slide.

4. A dual heading machine of the character described, embodying a pair of work-shaping dies, work forming slides individual to and operating on the same side of the dies, stock feeding means individual to the dies, means for severing the stock into predetermined lengths, means for pcsitioning the severed pieces of stock with relation to the dies, operating means for reciprocating the slides simultaneously and in opposite directions, an ejector for ejecting the work from the die, said ejector embodying an anvil element, an actuator for the ejector and anvil element, and an adjustable stop device for limiting the movement of said actuator and said anvil element in one direction.

5. A dual heading machine of the character described, embodying a pair of work-shaping dies, work forming slides individual to and operating on the same side of the dies, stock feeding means individual to the dies, means for severing the stock into predetermined lengths, means for pcsitioning the severed pieces of stock with relation to the dies, operating means for reciprocating the slides simultaneously and in opposite directions,

an ejector for ejecting th work from the die, said ejector embodying an anvil element, an actuator for the ejector and anvil element, and an adjustable stop device for limiting the movement of said actuator and said anvil element in one direction, said actuator being responsive in its operation to the operation of the said slide reciprocating means,

6. In a heading machine of the character described, a pair of slides arranged side by side, dies individual to the slides, stock feeding means, stock severing and positioning means, a drive shaft, operative connections between said slides and said shaft, whereby said slides will be successively reciprocated and in opposite directions upon rotation of said shaft, operative connections between said stock feeding, severing and positioning means and said shaft, to be operated thereby, and means individual to the dies for varying the length of the product produced therein while the extent of reciprocation of the respective slides remains constant.

'7. A continuously operating dual heading machine of the character described, embodying a pair of work forming dies, stock feeding and severing means individual to the dies, reciprccable slides individual to the dies for operating upon the work, means for reciprocating said slides simultaneously and in opposite directions, the said stock feeding means operating in unison with the respective slides, and means individual to the dies for varying at will the length of the product produced therein, While the degree of reciprocation of the slides remains constant,

8. A heading machine of the character described, embodying a work-shaping die, a movable work abutment operating in the die, a reciprocable slide co-operating with said abutment to shape the work, means for varying at will the extent of movement of the said abutment under the stress of the work thereagainst, whereby the size of the finished product may be varied while the extent of reciprocating movement of said slide remains constant, means for severing the work from the stock, means co-operating with the last said means to position the severed portion of the stock to be operated upon and intermediate the said die and slide, a portion of the abutment movement controlling means being also operable to eject the finished work from the die, and means common to the slide, the said stock severing means, and the said abutment controlling means when the latter serves to eject the work, for actuating them.

9. A heading machine of the character described, embodying a work-shaping die, a movable work abutment co-operating with the die, means embodying a slide co-operating with said abutment for operation upon the work, means operating in a plane transverse to the plane of movement of the said abutment for positioning the work with respect to the die to be operated upon, means for moving the abutment in one direction to eject the work from the die, means common to the slide and the last recited means for actuating them, and means whereby the extent of movement of said abutment under the stress of the operation of the slide upon the work may be varied at will, while the extent of movement of said slide remain constant.

WILLIAM J. CARNEY.

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