US1063593A - Nail-capping machine. - Google Patents

Nail-capping machine. Download PDF

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Publication number
US1063593A
US1063593A US62858511A US1911628585A US1063593A US 1063593 A US1063593 A US 1063593A US 62858511 A US62858511 A US 62858511A US 1911628585 A US1911628585 A US 1911628585A US 1063593 A US1063593 A US 1063593A
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nail
die
dies
cap
blank
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US62858511A
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Andrew Raiche
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ATLAS TACK Co
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ATLAS TACK Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21GMAKING NEEDLES, PINS OR NAILS OF METAL
    • B21G5/00Making pins or nails with attached caps or with coated heads

Definitions

  • PatentedJune 3, 1913
  • each nail In the manufacture of nails to be used for upholstering or for other purposes which require an ornamental nail, it is customary to make up each nail from a number of parts including an ornamental cap, a shank, and a third member by which the cap is attached to the shank.
  • an ornamental cap When a. nail is made up in this manner a standard shank member of iron orother metal may be used and the cap may be made of sheet brass, copper,'or other metal, plain or embossed or otherwise em bellished.
  • the object of the present invention is to provide amachine adapted to assemble the several component parts of a nail of the character above described.
  • the assembling operation as carried out by the m achine hereinafter described consists in assembling a shank member, a cap. and a filling piece
  • the machine also comprises ejector mechanism by which each finished nail is ejected from the forming dies.
  • the machine also includes various mechanisms, hereinafter described in detail. whereby the operations of assembling and forming the various parts of the nail are rendered automatic so that an indefinite number of finished nails may be produced so long as the supply of parts is not exhaust-ed.
  • Analogous fastening devices such, for example, as rivets or tacks, may be provided with caps in the same manner as that by which the caps are attached to nails.
  • Figure 1 represents a front elevation.
  • Fig. 2 represents a top plan I view of the machine.
  • Fig. 3 represents a vertical section of the mechanism for ejecting the finished nails.
  • Fig. 4 represents a side elevation of the machine.
  • Fig. 5 represents an elevation of a slide'for supporting one of the raceways, and actuating mecha-' nism therefor.
  • Fig. 6 represents a topplan view of a carrier for the nail caps.
  • F 7 represents a horizontal section of the means for transferring a nail from its raceway to the assembling dies.
  • Fig. 8 represents a view similar to Fig. 7, showing the devices in a different position.
  • Fig. 1 represents a front elevation.
  • Fig. 2 represents a top plan I view of the machine.
  • Fig. 3 represents a vertical section of the mechanism for ejecting the finished nails.
  • Fig. 4 represents a side elevation of the machine.
  • Fig. 5 represents an elevation of a slide'
  • FIG. 9 represents a top plan view of the three raceways for the caps, linings and nails respectively, and the means for transferring a cap and a nail into position where they are assembled.
  • Fig. 10 represents a front elevation, partly insection, of the mechanism shown by Fig. 9.
  • Fig. 11 represents a front elevation of the mechanism shown by Fig. 9, in a different position.
  • Fig. 12 represents a front elevation of the cap-transferring device in position to be retracted from the assembling die.
  • Flg. 13 represents a front elevation, partly in section, of the assembling dies with the several parts of a nail in partly assembled relation.
  • Fig. 14 represents an elevation,
  • the lining is in the form of a washer, and consists in a disk having a central opening through which the shank of the nailis inserted.
  • the rim of I the cap is swaged about the rim of the lining 7 so that the head w'is positively confined between the cap and the lining.
  • the caps are supplied from a hopper by a by a suitable hopper, from which they are.
  • the raceway for the linings is movable, and it is reciprocated at the appropriate intervals, as will be hereinafter explained.
  • the caps are transferred one by one from the lower end of their raceway into position between two coeperative assembling dies.
  • the nails are likewise transferred from the lower end of their raceway into position in alinement with the assembling dies.
  • the raceway containing the linings is moved to place the foremost lining'in position to receive the nail in alinement with the assembling dies; and while the component parts of the nail are all held in alinement with the dies the dies are brought together in such fashion as to insert the point of the nail through the lining, place the cap upon the head of the nail, to insert the point of the nail into the lower die, to pause long enough to give the cap transferring device suflicient time to recede out of the path of the'dies, to move toward each 1 through which the bolts extend.
  • the raceway for the nails :0 is indicated at20
  • the raceway for the caps 41: is indicated at 21
  • the raceway for the linings w is indicated at 22.
  • the raceways 20 and 21 are fixed to the frame of the machine, but the raceway 22 is movable horizontally so that its lower end may move into alinement with the assembling dies and recede therefrom.
  • the various mechanisms hereinafter described are all mounted in a frame 23 mounted on a base 24.
  • the hoppers for the nails, caps and linings are omitted.
  • the raceway 20 is aflixed to a bracket 25 which is adjustably secured to the frame of the machine by bolts indicated at 26, the bracket being provided with vertical slots 27
  • the bracket is provided with a setscrew 28 which is arranged to rest upon an upper surface of the frame to determine the vertical position of the bracket and the various devices supported thereby.
  • the raceway 21 is afiixed to a separate bracket which "is indicated 'at 29.
  • the bracket 29 is located on the op osite side of the center of the machine wit the bracket 25, and is attached to the frame in the same manner as the bracket 25.
  • the bracket29 is likewise provided with a setscrew, which is indicated at 30, by which its'vertical position may be determined.
  • the assembling dies are indicated at 31 and 32, the die 31 being arranged above the die 32 in vertical alinement therewith.
  • the die 31 is affixed in the lower end of a plunger 33 which is movable in a bearing 34 on the frame.
  • the upper end of the plunger is connected by a link 35'with an lever 36 whose rear end is connected with an adjustable connecting rod 37.
  • the frame 23 is provided with holes a which register with the holes in the oper ating lever so that the fulcrum pin 38 may be transferred from one position to another in order to vary the throw of the operating lever.
  • the lower end of the connecting rod 37 is in the form of a fork and straddles the main power shaft 40.
  • a cam roll 41 on the connecting rod 37 is arranged to engage an operating cam 42 on the shaft 40, and is held in contact with the cam by a'spring 43, one end of which is connected to the lever '36 and the other end of which is connected to the frame.
  • the lower die 32 is not moved for the purpose of cooperating with the upper die, but it is mounted so as to be movable to and from alinement with the upper die for the purpose of ejecting the finished nail.
  • the die 32 is seated in a socket formed in a holder 44.
  • the holder is mounted upon a stud 45 whose ends are mounted in, bearings 46 afforded by portions of the frame work.
  • the holder 44 is connected by a link 47 with a lever 48 mounted upon a fulcrum pin 49 and pro' vided with a roll 50 cooperating with a cam 51 on the shaft 40.
  • a spring 52 connected to the lever 48 serves to keep the roll 50 against the cam 51 and to move the die from the position indicated by solid lines to the position indicated by dotted lines.
  • An adjustable stop 8 is adapted to beengaged by the die holder 44 so as to position the die in alinement with the upper die 31,
  • the raceway 22 by which theliningw? are conducted to the assemblingdies is affixed to a slide 55. See Figs. 4 and 5.
  • the slide is mounted in guides 56 on the frame 23 in which it is moved from front to rear by an operating lever 57.
  • the lever is mounted upona fulcrum pin 58 and is. provided with a roll 59 which cooperates with a cam 60 on the shaft 40.
  • the connection between the operating lever and the slide comprises an eccentric stud 61 clamped in the end of the operating lever which is split and which is providedwith a clamping screw 62.
  • a square block 63 is mounted upon the inner end of the stud 61 and occupies a vertical slot 64 formed in the'slide.
  • the nails 00 are transferred one by one from the lower end of the raceway 20 into alinement with the assembling dies by a reciprocatory carrier 66 having coacting gripping fingers 67 and 68.
  • the finger 68 is movable with relation to the finger 67 and is connected therewith by a pivot pin 69.
  • a spring 70 acting against a rear extension 71 of the movable finger tends to close the fingers in gripping position, but the fingers are positively opened to receive a nail by an abutment 72 which is arranged to be engaged by the extension 71 when the carrier is'r'etracted to nail-receiving position.
  • the carrier 66 is aifixed to a slide 73. (See Figs. 1, 4 and 7). The slide is mounted at the lower end of the bracket 25 between horizontal gibs 74, and is connected, as hereinafter explained, with an operating lever 75.
  • the lever is adjustably secured upon a rock shaft 76 mounted in suitable bearings in the frame, and is provided with an arm 77 at its rear end on which is mounted a roll 78 which cooperates with a grooved cam 79 on the shaft 40. (See Fig. 2).
  • the cam operates the lever positively in both directions, but the lever is connected with the slide 73 in such manner that the transferring movement of the slide will be yielding.
  • the slide is provided with an extension rod 80 which" is connected with a in 81 on the lever by a helical spring82. he slide 73 isprovided with an abutment 83 against.
  • the nails are prevented from dropping out of the lower end of the raceway by a pivoted check finger 84 which is normally eld closed by. spring 85. (See Figs. 9 and 10).
  • the upper surface of the check finger is in the horizontal plane of the upper surface of the race, so that the head of the foremost nail may rest upon the check finger.
  • the carrier is provided with a stop member 86 which is arranged to engagethe shank of the nail near its point for the purpose of preventing the point from swinging forward when the upper end of the shank is arrested by the check finger 84.
  • the forward end of the finger 67 passes in front of the shank of the second nall in the raceway and in this way prevents the descent of the remaining nails in the ra'ceway until it is again retracted to the position shown by Figs. 7 and 9.
  • the abutment 86 which is aflixed to the nail carrier keeps the point of the nail in the desired transverse vertical plane while the nail is being carried to the assembling dies, so that the point of the nail may be. more readilv alined with the center of the lower die.
  • the lateral position of the point of the nail is' determined by a device attached to the raceway '22. as hereinafter explained.
  • the caps are transferred by a carrier 87 which is afiixed to a slide 88.
  • the slide is mounted between -90
  • the check finger is so arranged as to open horizontal guides 89 at the lower end of the bracket 29, as. shown by Fig. 1.
  • the slide 88 is operated by mechanism like that described upper end of the lever is held by the spring:
  • the carrier is formed with a recess 101 for the reception of a cap-gripping finger which is mounted upon the upper die 31 as hereinafter explained.
  • the cap is held in the desired position on the carrier 87 by a spring latch 102 which is mounted upon a fulcrum pm 103.
  • a rear extension 104 of the latch is engaged by a spring 105 which normally holds the cap-engaging portion of the latch in operative position, as shown by Figs. 1, 10 and.11..
  • the rear face of the carrier is parallel to ,the direction in which the carrier moves and is arranged in engagement with the forward end of the raceway 21.
  • the carrier having a cap thereon, as shown by Fig. 9, is moved to the right, thereby closing the forward end of the raceway and holding back the caps. remaining therein.
  • the carrier has been moved into alinement with the assembling dies, as shown by Fig. 11, it remains statlonary for a brief period during which the cap thereon is grasped by a pair of coacting fingers 106 mounted upon the die 31. Duringthis momentary pause of the carrier, the die 31 and fingers 106 descend until the finger at.
  • the carrier and the finger at the right has engaged the latch 102 anddepressed the free end thereof to the horizontal plane of the lower edge of the cap.
  • the die 31 and fingers 106 have descended to this point they remain stationary for a brief period during which the cap carrier is returned tocap-receiving position.
  • the free end of the latch 102 is depressed by, the right-hand finger 106, the extension 104 of the latch is engaged by a spring-actuated retaining pawl 107 pivotally mounted upon the carrier.
  • the retaining pawl serves to keep the latch in its retracted position while thecarrier is moving back to cap receiving position, but the pawl is automatically operated to release the latch when the carrier has returned to capreceiving position.
  • the pawl is provided with a finger 108, and the bracket 29 is )provided with an abutment 109 arranged in t e path of the finger 108.
  • the finger strikes the abutment just before the carrier reaches the limit of its return move- .ment, so that the latch 102 may resume its cap-engaging position before the next cap moves upon the carrier.
  • the cap-sup orting mounted direct y upon the die 31 but they are mounted upon a bushing 110 which is adapted to slide up and down upon the die.
  • a friction device (see Fig.- 14) comprising a plug 111, spring 112 and screw 113, is inserted in the bushing 110 so as to act upon the shank of the die to support the bushin at whatsoever position it maybe with relation to the die.
  • the friction device is 1nserted in a boss 114 projecting laterally from the bushing. This boss is adapted to engage an abutment 115 adjustably secured to the plunger guide 34, as shown by Figs. 1 and 4.
  • the bushing is provided with a second boss, indicated at 116.
  • This boss is adapted to engage an adjustable abutment 117 in the form of a setscrew, as shown by Figs. 4 and 14.
  • the abutment 115 is arranged to engage the lower side of the boss 114 while the abutment 117 is arranged to engage the upper side of the boss'116, sufiicient distance being provided between the two abutments to enable the bushing 110 to move for a considerable distance with the die without engaging either of its abutments.
  • the cap-supporting fingers 106 are mounted in the bushing 110 by means of fulcrum pins 118, and their upper ends are engaged by springs 119 by which they are normally closed.
  • the lower end of the die 31 is frus'to-conical, as indicated at 120, and the lower ends of the fingers 106 are bent inwardly at an angle conforming substantially to the angle of the portion 120.
  • the boss 116 engages the abutment 117, thus causing the bushing 110 to occupy the relation shown by Figs. 1, 11, 13 and 14. WVhen the bushing is in this position the lower ends of the fingers 106 are closed by their fingers 106 are.
  • the linings are prevented from passing freely out of the lower end of the raceway 22 by a pair of spring-closed fingers 121. These fingers are pivotally mounted upon the raceway by pivot studs 122 and are normally closed against stop pins 123 by springs 124. Affixed to the upper side of the raceway is a plate 125 in the forward edge of which is a V-notch 127 whose function is to position the point of the nail held by the transferring fingers 67, 68.
  • the raceway 22 occupies the position shown by solid lines in Fig. 9, while the carriers 66 and 87 are moved toward each other to place a nail and a cap in alinement with 'the assembling dies.
  • the raceway 22 is moved forward to t e position indicated by dotted lines in Fig. 9, by which movement the plate 125, having the notch, engages the shank of the nail near its point, as shown by Fig. 11, thereby moving the point of the nail laterally along the rear face of the abutment 86 to a position in alinement with the center of the assembling dies.
  • a cap, a nail and a linin are held in alinement with each other, as s own by Fig. 11.
  • the die 31 in moving toward the die 32 after the retraction of the carrier 87, places the cap su ported by the fingers 106 upon the head 0- the nail as shown by Fig. 13 and forces the nail downwardly between its supporting fingers 67, 68, until "the point of the nail is inserted in a central bore 128 in the lower die, as shownby Fig. 13.
  • the die 31 has descended to the position shown by Fig. 13, it remains stationary for an instant while the nail carrier is retracted out of its path.
  • the nail during this retractory movement of its carrier, is extracted from the fingers 67, 68, and is then free to drop until the point thereof engages a spring plunger 129 in the bore of the lower die.
  • a collar 131 is formed upon, or otherwise secured upon, the plunger 129 so as to form a shoulder against which the spring 130 may act to elevate the plunger.
  • the raceway 22 is then retracted out of the path of the upper die to the position shown in Fig. 9 by solid lines, and the die descends to the position shown by Fig. 15, thus depressing the plunger 129 and swaging the rim of the cap.
  • the upper die is then raised, but the spring plunger 129 in the lower die is held 1n its depressed position by a spring latch shown by Figs.
  • the plunger 129 extends through the fulcrum stud 45 and projects below the bottom of the die holder 44, and it is notched to form a shoulder 132.
  • the cam 51 effects a rocking movement of'the die holder 44 to the position indicated by dotted lines in Fig. 3, thus moving the lower end of the plunger 129 laterally away' from the latch 133. In this way the plunger is released from the latch and is forced upwardly by its spring 130 so as to eject the finished nail.
  • the die At the time of ejecting the nail the die is inclined from its vertical line, and the nail at such time is ejected away from the machine, so that it may be deposited in a suitable receptacle.
  • the plunger 129 is again placed in alinement with the latch 133 so that at the completion of the next swaging operation the shoulder 132 will once more be engaged with the latch. 133.
  • a machine of the character described comprising coactive dies, means for placing a fastener in operative position between said dies, means for placing a cap blank in operative position between said fastener and one of said dies, means for placing a lining blank between said fastener and the other of said dies, and means for causing relative movement of said dies to place said cap blank against one end of the fastener, to move the fastener through said lining blank, and to upset a portion of one of said blanks about the other blank while the fastener and blanks are assembled.
  • a machine of the character described comprising coactive dies.
  • means for supporting a fastener in alinement with the dies means for supporting a cap blank in position between said fastener and one of said dies, means for supporting a lining blank in position between said fastener and theother die, means for moving one of said dies to move the cap blank against the fastener and move the fastener through said lining blank and into the other die, means for retracting said fastener-supporting means, and means for retracting said lining-blsink-supporting means after the end of the fastener is inserted into the lastmentioned die.
  • said die-moving means being adapted to further actuate the die to completely assemble the fastener and the two blanks, and to upset one of said blanks so as to interlock the blanks upon the fastener.
  • a machine of the character described comprising coactive dies, retractory means for supporting a fastener between said dies,
  • retractory means for supporting a lining blank between said fastener and one of said dies, means for holding a cap blank in alinement between said fastener and the other of said dies, means for causing relative closing movement of said dies to insert one end of said fastener through said lining blank .and into the adjacent die, means for retracting said fastener-supporting means while 'the fastener is held by the dies, means for retracting the lining-blank-supporting means while the blank is held by the fastener, and means for closing the dies to swage one of said blanks to interlock said blanks upon the fastener.
  • a cap-forming die means for supportm a nail in alinement with said die, mova le means for carrying a cap blank between said-die and a nail, and means for receiving a cap blank from said carrying means, sa1d cap-blank-receiving means belng adapted to support the cap blank above the nail when the carrying means is retracted.
  • said jaws being movable with relation to their supporting die, said die and blanksupporting jaws having coactive engaging portions adapted to open said jaws.
  • a reciprocatorycarrier a die carried thereby, a coactive die, coactive gripplng members carried by said carrier for engaging and supporting a blank in'operative position between said dies, said blank-gripping members being movable with relation to their carrier, means for retracting said gripping members from blank-supporting posi-. tion, and means carried by said carrier in position to be engaged by said members when they are retracted, said means being adapted to open said members to release the blank.
  • a reciprocatory carrier a die carried thereby, a coactive die, a sliding member carried by said carrier, said sliding member being movable with relation to the carrier in parallelism thereto, coactive devices on said sliding member adapted to grip and support a blank between said dies, means for arresting movement of said sliding member when saidcarrier is moved toward said coactive dies, and means carried by said carrier adapted to engage surfaces of said gripping devices to open them.
  • coactive dies means for supporting a fastener between the dies in position to be taken by said dies when they close, a movable raceway adapted to support a blank between one end of said fastenerand the ad- .ently of said pivotally jacent die, means for closing the dies to cause the fastener to penetrate the blank in said raceway, and means for retracting said raceway while said fastener is in said blank, whereby the blank is extracted from the raceway.
  • coactive dies means for supporting a fastener between the dies, means for carrying a fastener-receiving blank into alinement with the dies between said fastener and one of the dies, cooperative members on said fastener-supporting means and on said blank-carryin means respectively for positioning one en of the fastener with relation to the blank, and means for closing the dies to cause said end of ,the fastener 'to pass through the blank.
  • gripping members movable with one of said dies for grippin' a blank on said carrier whereby the blan is detached from the carrier when the carrier is retracted, and a retaining member movably mounted on said which is movable laterally to and from alinement with the other, a spring-actuated ejector in said laterally movable die, a detent mounted independently of said laterally movable die for holding said ejector retracted, said ejector and detent being adapted to be disengaged when said laterall movable die is moved out of alinement wit 1 ts complemental die, whereby the ejector is released to eject the work.
  • a spring-actuated ejector in the laterally movable die said ejector being adapted to be repelled by the work when the dies are closed, and a detent mounted independently of said laterally movable die, said ejector being adapted to be operatively engaged with said detent when repelled by the work, and disengaged from the detent when said laterally movable (lie is move out of alinement with the other (ie.
  • a movable cap-forming die means for sup orting a nail in alin'ement with said 15 die, and gripping means movable with said die for carrying a cap blank between said die and the nail in position to be swaged upon the head of the nail.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

A. RAIGHE.
NAIL GAPPING MACHINE.
APPLIOATION FILED MAY 20, 1911.
1,063,593. Patented June 3, 1913.
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NAIL GAPPING MACHINE.
APPLICATION FILED MAY 20, 1911.-
Patented June 3, 1913.
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A. RAIGHE.
NAIL GAPPING MACHINE.
1122110111101; FILED MAY 20, 1911..
1,063,593, Patented June 3, 1913.
5 SHEETS-SHEET 3.
A. RAIGHE.
NAIL GAPPING MACHINE.
APPLIOATION FILED my 20, 1911.
1,063Q593. I Patented June 3, 1913.
5 SHEETS-"SHEET 4.
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NAIL GAPPING MACHINE.
APPLICATION FILED MAY 20, 1911.
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UNITED. STATES, PATENT oFmoE.
ANDREW *BAICHE, 0F FAIRHA-VEN, MASSACHUSETTS, ASSIGNOR TO ATLAS TACK COM- PANY, OF FAIRHAVEN, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.
' Nam-carr ers MACHINE.
Specification of Letters Patent.
PatentedJune 3, 1913.
Application filed May 20, 1911. Serial No. 628,585. i
To all whom it may concern:
Fairhaven, in the county of Bristol and.
State of Massachusetts, have invent-ed certain new and useful Improvements in Nail- Gapping Machines, of which the following is a specification.
In the manufacture of nails to be used for upholstering or for other purposes which require an ornamental nail, it is customary to make up each nail from a number of parts including an ornamental cap, a shank, and a third member by which the cap is attached to the shank. When a. nail is made up in this manner a standard shank member of iron orother metal may be used and the cap may be made of sheet brass, copper,'or other metal, plain or embossed or otherwise em bellished. I i
The object of the present invention is to provide amachine adapted to assemble the several component parts of a nail of the character above described. The assembling operation as carried out by the m achine hereinafter described consists in assembling a shank member, a cap. and a filling piece The machine also comprises ejector mechanism by which each finished nail is ejected from the forming dies.
The machine also includes various mechanisms, hereinafter described in detail. whereby the operations of assembling and forming the various parts of the nail are rendered automatic so that an indefinite number of finished nails may be produced so long as the supply of parts is not exhaust-ed.
The term nail as used throughout this specification and the appended claims is used solely for the purpose of description and not for limitation. Analogous fastening devices, such, for example, as rivets or tacks, may be provided with caps in the same manner as that by which the caps are attached to nails.
The details of mechanism hereinafter described need only be varied in proportion,
butnot in operation, in order to adapt the machine to produce composite tubular rivets or other similar fastening devices instead of the composite nail illustrated and described.
Of the accompanying drawings which illustrate one form in which'the invention may be embodied: Figure 1 represents a front elevation. Fig. 2 represents a top plan I view of the machine. Fig. 3 represents a vertical section of the mechanism for ejecting the finished nails. Fig. 4 represents a side elevation of the machine. Fig. 5 represents an elevation of a slide'for supporting one of the raceways, and actuating mecha-' nism therefor. Fig. 6 represents a topplan view of a carrier for the nail caps. F 7 represents a horizontal section of the means for transferring a nail from its raceway to the assembling dies. Fig. 8 represents a view similar to Fig. 7, showing the devices in a different position. Fig. 9 represents a top plan view of the three raceways for the caps, linings and nails respectively, and the means for transferring a cap and a nail into position where they are assembled. Fig. 10 represents a front elevation, partly insection, of the mechanism shown by Fig. 9. Fig. 11 represents a front elevation of the mechanism shown by Fig. 9, in a different position. Fig. 12 represents a front elevation of the cap-transferring device in position to be retracted from the assembling die. Flg. 13 represents a front elevation, partly in section, of the assembling dies with the several parts of a nail in partly assembled relation. Fig. 14 represents an elevation,
partly in section, in a plane from front 'to large cap for the nail is indicated at :0 and a. lining is indicated at w. The lining is in the form of a washer, and consists in a disk having a central opening through which the shank of the nailis inserted. The rim of I the cap is swaged about the rim of the lining 7 so that the head w'is positively confined between the cap and the lining.
Before describing in detail the mechanism of the machine for. assembling the nail as shown by Fig. 16, the machine and its operation may be generally stated as follows:
-The caps are supplied from a hopper by a by a suitable hopper, from which they are.
conducted by a third inclined raceway. The raceway for the linings is movable, and it is reciprocated at the appropriate intervals, as will be hereinafter explained.
The caps are transferred one by one from the lower end of their raceway into position between two coeperative assembling dies. The nails are likewise transferred from the lower end of their raceway into position in alinement with the assembling dies. The raceway containing the linings is moved to place the foremost lining'in position to receive the nail in alinement with the assembling dies; and while the component parts of the nail are all held in alinement with the dies the dies are brought together in such fashion as to insert the point of the nail through the lining, place the cap upon the head of the nail, to insert the point of the nail into the lower die, to pause long enough to give the cap transferring device suflicient time to recede out of the path of the'dies, to move toward each 1 through which the bolts extend.
other so as to complete the assembling of the nail, cap and lining, and to swage the cap around the edge of the lining, after which automatic ejection of the assembled nail is effected.
The raceway for the nails :0 is indicated at20, the raceway for the caps 41: is indicated at 21, and the raceway for the linings w is indicated at 22. The raceways 20 and 21 are fixed to the frame of the machine, but the raceway 22 is movable horizontally so that its lower end may move into alinement with the assembling dies and recede therefrom. The various mechanisms hereinafter described are all mounted in a frame 23 mounted on a base 24. The hoppers for the nails, caps and linings are omitted. The raceway 20 is aflixed to a bracket 25 which is adjustably secured to the frame of the machine by bolts indicated at 26, the bracket being provided with vertical slots 27 The bracket is provided with a setscrew 28 which is arranged to rest upon an upper surface of the frame to determine the vertical position of the bracket and the various devices supported thereby.
' The raceway 21 is afiixed to a separate bracket which "is indicated 'at 29. The bracket 29is located on the op osite side of the center of the machine wit the bracket 25, and is attached to the frame in the same manner as the bracket 25. The bracket29 is likewise provided with a setscrew, which is indicated at 30, by which its'vertical position may be determined.
. The assembling dies are indicated at 31 and 32, the die 31 being arranged above the die 32 in vertical alinement therewith. The die 31 is affixed in the lower end of a plunger 33 which is movable in a bearing 34 on the frame. The upper end of the plunger is connected by a link 35'with an lever 36 whose rear end is connected with an adjustable connecting rod 37. The oprelation to operating 38. The frame 23 is provided with holes a which register with the holes in the oper ating lever so that the fulcrum pin 38 may be transferred from one position to another in order to vary the throw of the operating lever. The lower end of the connecting rod 37 is in the form of a fork and straddles the main power shaft 40. A cam roll 41 on the connecting rod 37 is arranged to engage an operating cam 42 on the shaft 40, and is held in contact with the cam by a'spring 43, one end of which is connected to the lever '36 and the other end of which is connected to the frame.
According to this embodiment of the in vention, the lower die 32 is not moved for the purpose of cooperating with the upper die, but it is mounted so as to be movable to and from alinement with the upper die for the purpose of ejecting the finished nail. As shown by Fig. 3, the die 32 is seated in a socket formed in a holder 44. The holder is mounted upon a stud 45 whose ends are mounted in, bearings 46 afforded by portions of the frame work. The holder 44 is connected by a link 47 with a lever 48 mounted upon a fulcrum pin 49 and pro' vided with a roll 50 cooperating with a cam 51 on the shaft 40. A spring 52 connected to the lever 48 serves to keep the roll 50 against the cam 51 and to move the die from the position indicated by solid lines to the position indicated by dotted lines. An adjustable stop 8 is adapted to beengaged by the die holder 44 so as to position the die in alinement with the upper die 31,
' and an eccentric stud 53 is provided for conthe lever 48 is split and is provided with a clamping screw 54; The cam 51 '1s so formed as to hold the die 32 in alinement with the die 31' throughout the assembling and swaging operations, and to release the die so that it may tilt forward after 'the swaging operation has been performed. When the diemoves to the dotted line position, an ejecting device, hereinafter described, acts upon the nail to eject it from the die. 1
The raceway 22 by which theliningw? are conducted to the assemblingdies is affixed to a slide 55. See Figs. 4 and 5.) The slide is mounted in guides 56 on the frame 23 in which it is moved from front to rear by an operating lever 57. The lever is mounted upona fulcrum pin 58 and is. provided with a roll 59 which cooperates with a cam 60 on the shaft 40. The connection between the operating lever and the slide comprises an eccentric stud 61 clamped in the end of the operating lever which is split and which is providedwith a clamping screw 62. A square block 63 is mounted upon the inner end of the stud 61 and occupies a vertical slot 64 formed in the'slide. By turning the eccentric stud 61 in one direction or the other, the slide may be adjusted forward or backward with relation to the operating lever. A- spring 65 acting upon the operating lever exerts its tension tomove the slide forward and keep the roll 59 in engagement with the cam.
The nails 00 are transferred one by one from the lower end of the raceway 20 into alinement with the assembling dies by a reciprocatory carrier 66 having coacting gripping fingers 67 and 68.. The finger 68 is movable with relation to the finger 67 and is connected therewith by a pivot pin 69. A spring 70 acting against a rear extension 71 of the movable finger tends to close the fingers in gripping position, but the fingers are positively opened to receive a nail by an abutment 72 which is arranged to be engaged by the extension 71 when the carrier is'r'etracted to nail-receiving position. The carrier 66 is aifixed to a slide 73. (See Figs. 1, 4 and 7). The slide is mounted at the lower end of the bracket 25 between horizontal gibs 74, and is connected, as hereinafter explained, with an operating lever 75.
The lever is adjustably secured upon a rock shaft 76 mounted in suitable bearings in the frame, and is provided with an arm 77 at its rear end on which is mounted a roll 78 which cooperates with a grooved cam 79 on the shaft 40. (See Fig. 2). The cam operates the lever positively in both directions, but the lever is connected with the slide 73 in such manner that the transferring movement of the slide will be yielding. For this purpose the slide is provided with an extension rod 80 which" is connected with a in 81 on the lever by a helical spring82. he slide 73 isprovided with an abutment 83 against.
which the upper end of the lever 75 is held by the spring. When the operating lever is moved to transfer a nail from theraceway to the assembling dies, the force of the lever is transmitted to the slide through the spring 82; but when the operating lever is moved in the opposite direction it acts positively u on the slide through the medium of the a utment 83. The purpose in providing the spring connection'between the lever and the slide is to avoid breaking the mechanismin case a nail becomes dislodged so as to impede themovement of the carrier when the operating lever is moved. a
The nails are prevented from dropping out of the lower end of the raceway by a pivoted check finger 84 which is normally eld closed by. spring 85. (See Figs. 9 and 10). The upper surface of the check finger is in the horizontal plane of the upper surface of the race, so that the head of the foremost nail may rest upon the check finger.
to permit the nail to move-laterally from the lower end of the raceway when the gripping fingers are moved to transfer the nail to the assembling dies. The carrier is provided with a stop member 86 which is arranged to engagethe shank of the nail near its point for the purpose of preventing the point from swinging forward when the upper end of the shank is arrested by the check finger 84. When the nail carrier is moved to the left from the position shown by Figs. 7 and 9, the movable grip finger 68 is released by the abutment 72 so that it may close upon the shank of the nail by reason of the tension of the spring 70.' The closed position of the grip fingers is shown by Fig. 8. As the carrier continues to move toward the assembling dies, the forward end of the finger 67 passes in front of the shank of the second nall in the raceway and in this way prevents the descent of the remaining nails in the ra'ceway until it is again retracted to the position shown by Figs. 7 and 9. The abutment 86 which is aflixed to the nail carrier keeps the point of the nail in the desired transverse vertical plane while the nail is being carried to the assembling dies, so that the point of the nail may be. more readilv alined with the center of the lower die. The lateral position of the point of the nail is' determined by a device attached to the raceway '22. as hereinafter explained.
While the nail-gripping fingers are in the act of carryin a nail to the assembling dies, other mechanism is operated to transfer a cap m from the raceway 21 into alinement with the assembling dies. The caps are transferred by a carrier 87 which is afiixed to a slide 88. The slide is mounted between -90 The check finger is so arranged as to open horizontal guides 89 at the lower end of the bracket 29, as. shown by Fig. 1. The slide 88 is operated by mechanism like that described upper end of the lever is held by the spring:
against an .abutment 98 on the slide:
When the foremost cap in the raceway is released, as hereinafter explained, it slides upon the cap-receiving surface 99 of the carrier. (See Fig. 6). Ashoulder 100 limits the forward movement of the cap and prevents it from sliding off the carrier. The carrier is formed with a recess 101 for the reception of a cap-gripping finger which is mounted upon the upper die 31 as hereinafter explained. The cap is held in the desired position on the carrier 87 by a spring latch 102 which is mounted upon a fulcrum pm 103. A rear extension 104 of the latch is engaged by a spring 105 which normally holds the cap-engaging portion of the latch in operative position, as shown by Figs. 1, 10 and.11.. The rear face of the carrier is parallel to ,the direction in which the carrier moves and is arranged in engagement with the forward end of the raceway 21. The carrier, having a cap thereon, as shown by Fig. 9, is moved to the right, thereby closing the forward end of the raceway and holding back the caps. remaining therein. When the carrier has been moved into alinement with the assembling dies, as shown by Fig. 11, it remains statlonary for a brief period during which the cap thereon is grasped by a pair of coacting fingers 106 mounted upon the die 31. Duringthis momentary pause of the carrier, the die 31 and fingers 106 descend until the finger at. the left occupies the recess 101 in .the carrier and the finger at the right has engaged the latch 102 anddepressed the free end thereof to the horizontal plane of the lower edge of the cap. When the die 31 and fingers 106 have descended to this point they remain stationary for a brief period during which the cap carrier is returned tocap-receiving position. When the free end of the latch 102 is depressed by, the right-hand finger 106, the extension 104 of the latch is engaged by a spring-actuated retaining pawl 107 pivotally mounted upon the carrier. The retaining pawl serves to keep the latch in its retracted position while thecarrier is moving back to cap receiving position, but the pawl is automatically operated to release the latch when the carrier has returned to capreceiving position. For this purpose the pawl is provided with a finger 108, and the bracket 29 is )provided with an abutment 109 arranged in t e path of the finger 108. The finger strikes the abutment just before the carrier reaches the limit of its return move- .ment, so that the latch 102 may resume its cap-engaging position before the next cap moves upon the carrier. r
The cap-sup orting mounted direct y upon the die 31 but they are mounted upon a bushing 110 which is adapted to slide up and down upon the die. A friction device (see Fig.- 14) comprising a plug 111, spring 112 and screw 113, is inserted in the bushing 110 so as to act upon the shank of the die to support the bushin at whatsoever position it maybe with relation to the die. The friction device is 1nserted in a boss 114 projecting laterally from the bushing. This boss is adapted to engage an abutment 115 adjustably secured to the plunger guide 34, as shown by Figs. 1 and 4. The bushing is provided with a second boss, indicated at 116. This boss is adapted to engage an adjustable abutment 117 in the form of a setscrew, as shown by Figs. 4 and 14. The abutment 115 is arranged to engage the lower side of the boss 114 while the abutment 117 is arranged to engage the upper side of the boss'116, sufiicient distance being provided between the two abutments to enable the bushing 110 to move for a considerable distance with the die without engaging either of its abutments. The cap-supporting fingers 106 are mounted in the bushing 110 by means of fulcrum pins 118, and their upper ends are engaged by springs 119 by which they are normally closed. The lower end of the die 31 is frus'to-conical, as indicated at 120, and the lower ends of the fingers 106 are bent inwardly at an angle conforming substantially to the angle of the portion 120. When the plunger 33 is raised to elevate the die 31, the boss 116 engages the abutment 117, thus causing the bushing 110 to occupy the relation shown by Figs. 1, 11, 13 and 14. WVhen the bushing is in this position the lower ends of the fingers 106 are closed by their fingers 106 are. not
springs as far as the diameter of the die 31 will permit. The actual distance between the extremities'of the fingers is slightly less than the diameter of a cap at. When the plunger 33 is depressed to carry the die to the position shown by Fig. 12, the fingers 106 are forced apart by the cap which they grip with spring tension. Upoii retraction of the horizontally movable cap carrier, the cap-is left supported by the fingers 106, as shown by Fig. 13. When the plunger 33 is further depressed to eflect the swagin of the cap, as hereinafter explained, the oss 114- on the bushing 110 engages the abutment 115, and continued movement of the die 31 spreads the lower ends of the fingers 106 as shown by Fig. 15. The fingers remain spread in this manner until the boss 116 of the bushing is once more moved into engagement with the abutment 117.
The linings are prevented from passing freely out of the lower end of the raceway 22 by a pair of spring-closed fingers 121. These fingers are pivotally mounted upon the raceway by pivot studs 122 and are normally closed against stop pins 123 by springs 124. Affixed to the upper side of the raceway is a plate 125 in the forward edge of which is a V-notch 127 whose function is to position the point of the nail held by the transferring fingers 67, 68. The raceway 22 occupies the position shown by solid lines in Fig. 9, while the carriers 66 and 87 are moved toward each other to place a nail and a cap in alinement with 'the assembling dies. While the carrier 66 remains stationary for a brief period, supporting a nail between the assemblin dies, the raceway 22 is moved forward to t e position indicated by dotted lines in Fig. 9, by which movement the plate 125, having the notch, engages the shank of the nail near its point, as shown by Fig. 11, thereby moving the point of the nail laterally along the rear face of the abutment 86 to a position in alinement with the center of the assembling dies. There is a brief period of time when a cap, a nail and a linin are held in alinement with each other, as s own by Fig. 11. The die 31 in moving toward the die 32 after the retraction of the carrier 87, places the cap su ported by the fingers 106 upon the head 0- the nail as shown by Fig. 13 and forces the nail downwardly between its supporting fingers 67, 68, until "the point of the nail is inserted in a central bore 128 in the lower die, as shownby Fig. 13. The point of the nail, before passing into the bore 128, passes through the central hole in the lining m When the die 31 has descended to the position shown by Fig. 13, it remains stationary for an instant while the nail carrier is retracted out of its path. The nail, during this retractory movement of its carrier, is extracted from the fingers 67, 68, and is then free to drop until the point thereof engages a spring plunger 129 in the bore of the lower die. A collar 131 is formed upon, or otherwise secured upon, the plunger 129 so as to form a shoulder against which the spring 130 may act to elevate the plunger. The raceway 22 is then retracted out of the path of the upper die to the position shown in Fig. 9 by solid lines, and the die descends to the position shown by Fig. 15, thus depressing the plunger 129 and swaging the rim of the cap. The upper die is then raised, but the spring plunger 129 in the lower die is held 1n its depressed position by a spring latch shown by Figs. 3 and 14. The plunger 129 extends through the fulcrum stud 45 and projects below the bottom of the die holder 44, and it is notched to form a shoulder 132. Attached to the base 24 isalatch 133=which is engaged by a spring 134 and which is adapted to automatically engage the shoulder 132 as shown in-dotted lines by Fig. 14. After the upper die has been raised, the cam 51 effects a rocking movement of'the die holder 44 to the position indicated by dotted lines in Fig. 3, thus moving the lower end of the plunger 129 laterally away' from the latch 133. In this way the plunger is released from the latch and is forced upwardly by its spring 130 so as to eject the finished nail. At the time of ejecting the nail the die is inclined from its vertical line, and the nail at such time is ejected away from the machine, so that it may be deposited in a suitable receptacle. When the die holder 44 is rocked back to its vertical position, the plunger 129 is again placed in alinement with the latch 133 so that at the completion of the next swaging operation the shoulder 132 will once more be engaged with the latch. 133.
I claim:
1. A machine of the character described, comprising coactive dies, means for placing a fastener in operative position between said dies, means for placing a cap blank in operative position between said fastener and one of said dies, means for placing a lining blank between said fastener and the other of said dies, and means for causing relative movement of said dies to place said cap blank against one end of the fastener, to move the fastener through said lining blank, and to upset a portion of one of said blanks about the other blank while the fastener and blanks are assembled.
2. A machine of the character described, comprising coactive dies. means for supporting a fastener in alinement with the dies, means for supporting a cap blank in position between said fastener and one of said dies, means for supporting a lining blank in position between said fastener and theother die, means for moving one of said dies to move the cap blank against the fastener and move the fastener through said lining blank and into the other die, means for retracting said fastener-supporting means, and means for retracting said lining-blsink-supporting means after the end of the fastener is inserted into the lastmentioned die. whereby the fastener and lining blank are detached from their respective supporting means, said die-moving means being adapted to further actuate the die to completely assemble the fastener and the two blanks, and to upset one of said blanks so as to interlock the blanks upon the fastener.
' 3. A machine of the character described, comprising coactive dies, retractory means for supporting a fastener between said dies,
retractory means for supporting a lining blank between said fastener and one of said dies, means for holding a cap blank in alinement between said fastener and the other of said dies, means for causing relative closing movement of said dies to insert one end of said fastener through said lining blank .and into the adjacent die, means for retracting said fastener-supporting means while 'the fastener is held by the dies, means for retracting the lining-blank-supporting means while the blank is held by the fastener, and means for closing the dies to swage one of said blanks to interlock said blanks upon the fastener.
4. Inamachine of the character described, a cap-forming die, means for supportm a nail in alinement with said die, mova le means for carrying a cap blank between said-die and a nail, and means for receiving a cap blank from said carrying means, sa1d cap-blank-receiving means belng adapted to support the cap blank above the nail when the carrying means is retracted.
, 5. In a machine of the character described, coactive dies for forming a blank, and jaws supported by one of the dies for supporting a blank in operative position between said,
dies, said jaws being movable with relation to their supporting die, said die and blanksupporting jaws having coactive engaging portions adapted to open said jaws.
6. Inamachine of the character described. a reciprocatorycarrier, a die carried thereby, a coactive die, coactive gripplng members carried by said carrier for engaging and supporting a blank in'operative position between said dies, said blank-gripping members being movable with relation to their carrier, means for retracting said gripping members from blank-supporting posi-. tion, and means carried by said carrier in position to be engaged by said members when they are retracted, said means being adapted to open said members to release the blank.
7. In amachine of the character described, a reciprocatory carrier, a die carried thereby, a coactive die, a sliding member carried by said carrier, said sliding member being movable with relation to the carrier in parallelism thereto, coactive devices on said sliding member adapted to grip and support a blank between said dies, means for arresting movement of said sliding member when saidcarrier is moved toward said coactive dies, and means carried by said carrier adapted to engage surfaces of said gripping devices to open them. I
8. Inamachine of the character described, coactive dies, means for supporting a fastener between the dies in position to be taken by said dies when they close, a movable raceway adapted to support a blank between one end of said fastenerand the ad- .ently of said pivotally jacent die, means for closing the dies to cause the fastener to penetrate the blank in said raceway, and means for retracting said raceway while said fastener is in said blank, whereby the blank is extracted from the raceway.
9. Ida machine of the character described, coactive dies, means for sup orting a fastener between the dies, mova le means for supporting a blank between said fastener and one of the dies, means for closing the dies to cause said fastener to pass through said blank, and means for retracting sa1d blank-supporting means while said blank is upon said fastener whereby said blank is detached from its supporting means.
10. In a machine ofthe character described, coactive dies, means for supporting a fastener between the dies, means for carrying a fastener-receiving blank into alinement with the dies between said fastener and one of the dies, cooperative members on said fastener-supporting means and on said blank-carryin means respectively for positioning one en of the fastener with relation to the blank, and means for closing the dies to cause said end of ,the fastener 'to pass through the blank.
11. In a machine of the character described, coactive dies, a blank carrier movable toward and from the line of said dies,
gripping members movable with one of said dies for grippin' a blank on said carrier whereby the blan is detached from the carrier when the carrier is retracted, and a retaining member movably mounted on said which is movable laterally to and from alinement with the other, a spring-actuated ejector in said laterally movable die, a detent mounted independently of said laterally movable die for holding said ejector retracted, said ejector and detent being adapted to be disengaged when said laterall movable die is moved out of alinement wit 1 ts complemental die, whereby the ejector is released to eject the work.
13. In a die press, coactive dies one of which is mounted upon a pivot member, a spring-actuated ejector in said pivotally mounted die, adetent mounted independmounted die, said detent and ejector havmg'coactive portions whereby the ejector is held retracted when said dies are in coactive relation, said 00- active portions being adapted to be disengaged by movement of the pivotally mounted die whereby the ejectoris released to eject the work.
14. In a die press, coactive dies one of which is movable laterally to and from alinement withthe other, a spring-actuated ejector in the laterally movable die, said ejector being adapted to be repelled by the work when the dies are closed, and a detent mounted independently of said laterally movable die, said ejector being adapted to be operatively engaged with said detent when repelled by the work, and disengaged from the detent when said laterally movable (lie is move out of alinement with the other (ie.
15. In a machine of the character described, a movable cap-forming die, means for sup orting a nail in alin'ement with said 15 die, and gripping means movable with said die for carrying a cap blank between said die and the nail in position to be swaged upon the head of the nail.
In testimony whereof I have atfixedmy 20 signature, in presence of two witnesses.
ANDREW RAIGHE.
Witnesses:
WALTER P. ABELL, P. W. PEZZETTI.
US62858511A 1911-05-20 1911-05-20 Nail-capping machine. Expired - Lifetime US1063593A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613374A (en) * 1947-11-19 1952-10-14 Gora Lee Corp Fastener and washer assembling
US2779956A (en) * 1950-05-02 1957-02-05 Nat Acme Co Blank reversing means for multiple spindle machine
US3015117A (en) * 1957-09-06 1962-01-02 Groov Pin Corp Insert tapping machine with work clamp means reciprocable between feed stud tapping stations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613374A (en) * 1947-11-19 1952-10-14 Gora Lee Corp Fastener and washer assembling
US2779956A (en) * 1950-05-02 1957-02-05 Nat Acme Co Blank reversing means for multiple spindle machine
US3015117A (en) * 1957-09-06 1962-01-02 Groov Pin Corp Insert tapping machine with work clamp means reciprocable between feed stud tapping stations

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