US3495315A - Apparatus for loading a tape with fasteners - Google Patents

Apparatus for loading a tape with fasteners Download PDF

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Publication number
US3495315A
US3495315A US641754A US3495315DA US3495315A US 3495315 A US3495315 A US 3495315A US 641754 A US641754 A US 641754A US 3495315D A US3495315D A US 3495315DA US 3495315 A US3495315 A US 3495315A
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US
United States
Prior art keywords
tape
fasteners
holes
strip
punches
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US641754A
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English (en)
Inventor
Ronald Waeltz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPS Technologies LLC
Original Assignee
Standard Pressed Steel Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Standard Pressed Steel Co filed Critical Standard Pressed Steel Co
Application granted granted Critical
Publication of US3495315A publication Critical patent/US3495315A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • B23P21/004—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units passing two or more work-stations whilst being composed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B15/00—Attaching articles to cards, sheets, strings, webs, or other carriers
    • B65B15/04—Attaching a series of articles, e.g. small electrical components, to a continuous web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53313—Means to interrelatedly feed plural work parts from plural sources without manual intervention
    • Y10T29/53348—Running-length work
    • Y10T29/53361—Assembled to article

Definitions

  • the present invention relates, in general, to the automatic application of fasteners to workpieces and, in particular, to apparatus for arranging fasteners on a tape or strip of flexible and resilient material so that the fasteners may be engaged by a power tool and inserted into workpieces.
  • fasteners are inserted into holes punched in a tape or strip of flexible and resilient material in such a manner that each fastener lies in yielding frictional engagement with the walls of its associated hole.
  • the fasteners may be of the same type or they may vary from one to the next.
  • the holes, shaped and-dimensioned according to the associated fasteners, are punched into the tape at prescribed points corresponding to the particular sequence in which the fasteners will be needed for insertion into workpieces. This mode of operation may be termed programmed loading of fasteners.
  • the tape thus loaded with fasteners,
  • 3,495,315 Patented Feb. 17, 1970 is adapted to be fed past a power tool so that the fasteners may be ejected from the tape and set into workpieces as the drive element of the tool is projected against the fasteners and through the holes.
  • the holes in the tape preferably are barrelled and formed of the strip material as the holes are punched and the material is pushed outward and stretched. Such construction enhances the alignment of a fastener as it is carried by the tape and positioned with respect to the powered tool, thereby reducing the possibilities of operational failures.
  • FIGURES 1a and 1b are schematic diagrams of the loading and ejecting portions, respectively, of an automatic fastener setting system constructed in accordance with the present invention
  • FIGURE 2 is a sectional view of a part of the loading portion of FIGURE 1a;
  • FIGURE 3 is a perspective view, on an enlarged scale, of a length of a tape employed for carrying fasteners in accordance with the present invention.
  • a tape or strip 10 of flexible and resilient material is loaded with fasteners at a loading station, designated generally by reference numeral 12.
  • the tape 10 is supplied from a supply reel 14 and may be a suitable plastic material.
  • the first operation performed at the loading station 12 is the punching of a pair of upper and lower sprocket holes 16a and 16b into the tape 10.
  • Sprocket holes 16a and 16b are punched by a pair of reciprocating punches 18a and 18b, respectively, which are ganged together and actuated by a punch drive mechanism 20 at prescribed times in a manner to be described hereinafter.
  • the punches 18a and 18b are guided through the tape 10 by a pair of bores in a block 21 having a slot through which the tape passes.
  • the sprocket holes 16a and 16b are engaged by pairs of upper and lower sprockets 22a and 22b, respectively, carried on an indexing wheel 24.
  • the indexing wheel 24 is coupled through a shift 26 to a wheel drive mechanism 28 which effects incremental rotational movements of the indexing wheel at prescribed times in a manner to be described hereinafter. It is these incremental movements of the indexing wheel 24 and the engagement of the sprockets 22a and 22b with the holes 16a and 1617 which draws the tape 10 toward the loading station 12 and moves the tape through the loading station.
  • the purpose for moving blocks 31 and 33 to and away from tape 10 is to provide a base against which the tape bears as the holes are being punched and to permit the tape to move freely afterward.
  • the particular sizes and shapes of the forming ends of punches 30 and 32 and the wells 31a and 33a correspond to the sizes and shapes of the fasteners which are to be inserted into the holes punched by punches 30 and 3-2.
  • the forming end of punch 30 is slightly larger than that of punch 32 so that the holes developed by punch 30 are adapted to receive fasteners of a slightly larger size.
  • the relative sizes of these holes and their associated fasteners are such that each of the fasteners inserted into these holes lies in yielding frictional engagement with the Walls of a hole.
  • the punches 30 and 32 preferably are rotated as they pierce and project through tape 10. As a result, the holes developed by punches 30 and 32 are more uniformly round.
  • each of the punches 30 and 32 have a starting tip (30a, 32a), a first bevelled section (30b, 32b)), a cylindrical section (300, 32c), and a second bevelled section (30d, 32d).
  • the holes punched by punches 30 and 32 are barrelled.
  • the barrelling effect is formed as the flexible and resilient material of the strip is pushed outward and is stretched by the punches as the different sections of the forming ends of the punches are projected through the strip.
  • tape 10 is first pierced and then subjected to the increasing diameters of the sections of the forming ends of the punches.
  • FIG- URE 3 shows a length of tape 10 after the barrelled holes have been punched and two fasteners have been inserted in two of the holes.
  • fasteners such as the setscrews 42 and 44 may be loaded onto the tape 10.
  • Setscrews 42 being slightly larger in diameter than setscrews 44, are inserted into the holes punched by punch 30, while setscrews 44 are inserted into the holes punched by punch 32.
  • the setscrews 42 and 44 are supplied along chutes 46 and 48, respectively, to a pair of grooved beds 50 and 52, respectively.
  • the setscrews 42 and 44 are pushed off of the beds 50 and 52 by a pair of reciprocating plungers 54 and 56, respectively which are aligned with the beds and are actuated by plunger drive mechanisms 58 and 60, respectively, at prescribed times in a manner to be described hereinafter.
  • the reciprocating blocks 55 and 57 Positioned on the opposite side of tape 10 from the plungers 54 and 56 are two reciprocating blocks 55 and 57 which are provided with wells 55a and 57a, respectively, aligned with these plungers and adapted to receive the barrelled holes in the tape and the setscrews 42 and 44.
  • the well 55a is slightly larger than the well 57a to receive the larger setscrew.
  • the plungers 54 and 56 drive the setscrews 42 and 44 into the barrelled holes in tape 10 and the wells 55a and 57a.
  • the reciprocating blocks 55 and 57 are actuated by block drive mechanisms 59 and 61, respectively, at prescribed times in a manner to be described hereinafter.
  • the purpose for moving blocks 55 and 57 to and away from tape 10 is to provide a base against which the tape bears as the setscrews are being inserted and to permit the loaded tape to move freely afterward.
  • the loaded tape 10 is drawn away from the loading station by indexing wheel 24.
  • the loaded tape may be wound on a storage reel or held in a suitable container for subsequent use.
  • punch drive mechanisms 20, 34 and 36, wheel drive mechanism 28, plunger drive mechanisms 58 and 60 and block drive mechanisms 35, 3-7, 59 and 61 is controlled by a control unit 70.
  • the output lines 70a-70j, inclusive, from control unit 70 extend to the various drive mechanisms 20, 34, 36, 28, 58, 60, 35, 37, 59 and 61, but have been shown broken for the sake of clarity.
  • the output lines '70a70 carry control signals which operate the associated drive mechanisms which, in turn, actuate the respective punches, plungers, blocks and the indexing wheel.
  • control unit 70 may be designed accordingly.
  • the leading end of tape 10 is provided with a few pairs of sprocket holes 16a and 16b to start the movement of the tape through the loading station 12. If the loaded tape is to be collected on a storage reel, the leading end of the tape is wound onto this reel.
  • Punches 18a, 18b, 30 and 32 are actuated simultaneously by three times coincident signals directed to punch drive mechanisms 20, 34 and 36 from the control unit 70 along output lines 70a, 70b and 700.
  • blocks 31 and 33 are moved to tape 10 by two signals directed to block drive mechanisms 35 and 37 from the control unit 70 along output lines 70d and 702.
  • a pair of sprocket holes and a pair of barrelled fastener holes are punched in tape 10'.
  • a control signal is supplied from control unit 70 along line 70 to wheel drive mechanism 28 to turn the indexing wheel 24 through a prescribed angle to position the two fastener holes, just punched, in front of beds 50 and 52.
  • plungers 54 and 56 are actuated simultaneously by two time coincident signals directed to plunger drive mechanisms 58 and 60 from the control unit 70 along output lines 70g and 70h.
  • blocks 55 and 57 are moved to tape 10 by two signals directed to block drive mechanisms 59 and 61 from the control unit 70 along output lines 701 and 70
  • the punches 18a, 18b, 30 and 32 and the blocks 31 and 33 also may be actuated at this time to punch the next set of sprocket and fastener holes.
  • the indexing wheel 24 is driven through its incremental movement after each hole punching and fastener insertion cycle.
  • the loaded tape 10 is supplied to an ejecting station, designated generally by reference numeral 80, from a storage reel or container.
  • the loaded tape 10 is drawn past the ejecting station by a driven sprocket wheel 82.
  • the sprocket Wheel 82 undergoes timed, incremental rotations so as to position the setscrews 42 and 44 sequentially in front of a reciprocating plunger 84 which is actuated by a plunger drive mechanism 86.
  • the plunger 84 is actuated every time the tape 10 comes to rest.
  • Setscrews 42 and 44 are driven from the barrelled holes in tape 10* as the plunger 84 is projected against the setscrews and through the holes in the tape.
  • the leading end of plunger 84 may be hexagonal in cross-section and adopted to enter correspondingly shaped wells in setscrews 42 and 44.
  • a workpiece (not shown) normally is positioned in front of block 90 so that it may receive the setscrews.
  • plunger drive mechanism 86 also imparts a rotational movement to plunger 84 so that the setscrew may be seated in the workpiece.
  • Apparatus for loading a strip of flexible and resilient material with different fasteners in a predetermined sequence comprising:
  • a loading station at which said strip is loaded with said different fasteners, said loading station having means for supplying said different fasteners, means for punching different holes in said strip corresponding in shape with said different fasteners and in a predetermined sequence along said strip, and means for selectively inserting said different fasteners into corresponding holes in said strip;
  • punching means include punches having form-ing ends with varying diameter sections which increase as said forming ends engage the strip of flexible and resilient material.
  • Apparatus according to claim 1 wherein the punching means include reciprocating punches.
  • inserting means also include reciprocating plungers aligned with the beds for pushing the fasteners off of said beds and into the holes of the strip of flexible and resilient material.
  • the loading station also includes second punching means for punching sprocket holes in the strip of flexible and resilient material.
  • the strip supplying and moving means include a sprocket drive which is indexed by the control means to move the strip of flexible and resilient material through the loading station in the predetermined time sequence.
  • inserting means include reciprocating plungers for pushing the fasteners into the holes of the strip of flexible and resilient material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US641754A 1967-05-29 1967-05-29 Apparatus for loading a tape with fasteners Expired - Lifetime US3495315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64175467A 1967-05-29 1967-05-29

Publications (1)

Publication Number Publication Date
US3495315A true US3495315A (en) 1970-02-17

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US641754A Expired - Lifetime US3495315A (en) 1967-05-29 1967-05-29 Apparatus for loading a tape with fasteners

Country Status (5)

Country Link
US (1) US3495315A (enrdf_load_stackoverflow)
DE (2) DE1752450A1 (enrdf_load_stackoverflow)
FR (1) FR1565963A (enrdf_load_stackoverflow)
GB (1) GB1228832A (enrdf_load_stackoverflow)
SE (1) SE361866B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571889A (en) * 1967-01-31 1971-03-23 Western Electric Co Apparatus for assembling a non-destructive read-out memory
US3668771A (en) * 1970-06-12 1972-06-13 Kimberly Clark Co Method and apparatus for affixing fasteners to a moving web
US3710480A (en) * 1970-06-18 1973-01-16 Warwick Electronics Inc Terminal pin installing machine
US4081894A (en) * 1976-06-09 1978-04-04 Dayron Corporation Method for attaching a workpiece to a continuous length of line
US9309911B1 (en) * 2012-01-23 2016-04-12 K & R Industries Inc. Cap nail

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ196400A (en) * 1980-03-10 1984-03-16 Furma Mfg Co Pty Ltd Sequential unit feeding apparatus
NZ197560A (en) * 1980-07-18 1984-05-31 Furma Mfg Co Pty Ltd Mounting rivets in a flexible carrier
DE102012208042A1 (de) * 2012-05-14 2013-11-14 Airbus Operations Gmbh Vorrichtung und Verfahren zum Stecken eines Befestigungsmittelverbundes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893010A (en) * 1955-07-20 1959-07-07 Philco Corp Apparatus for securing components to panels
US3031002A (en) * 1959-01-30 1962-04-24 Western Electric Co Device for securing terminals to wires
US3274665A (en) * 1964-10-06 1966-09-27 Ibm Mechanical chip posting mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893010A (en) * 1955-07-20 1959-07-07 Philco Corp Apparatus for securing components to panels
US3031002A (en) * 1959-01-30 1962-04-24 Western Electric Co Device for securing terminals to wires
US3274665A (en) * 1964-10-06 1966-09-27 Ibm Mechanical chip posting mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571889A (en) * 1967-01-31 1971-03-23 Western Electric Co Apparatus for assembling a non-destructive read-out memory
US3668771A (en) * 1970-06-12 1972-06-13 Kimberly Clark Co Method and apparatus for affixing fasteners to a moving web
US3710480A (en) * 1970-06-18 1973-01-16 Warwick Electronics Inc Terminal pin installing machine
US4081894A (en) * 1976-06-09 1978-04-04 Dayron Corporation Method for attaching a workpiece to a continuous length of line
US9309911B1 (en) * 2012-01-23 2016-04-12 K & R Industries Inc. Cap nail

Also Published As

Publication number Publication date
SE361866B (enrdf_load_stackoverflow) 1973-11-19
GB1228832A (enrdf_load_stackoverflow) 1971-04-21
DE6609982U (de) 1973-01-18
DE1752450A1 (de) 1971-05-27
FR1565963A (enrdf_load_stackoverflow) 1969-05-02

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