US3608592A - Automatic machine for making steel wire springs - Google Patents

Automatic machine for making steel wire springs Download PDF

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Publication number
US3608592A
US3608592A US818686A US3608592DA US3608592A US 3608592 A US3608592 A US 3608592A US 818686 A US818686 A US 818686A US 3608592D A US3608592D A US 3608592DA US 3608592 A US3608592 A US 3608592A
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United States
Prior art keywords
wire
movable
tray
fixed
eccentric opening
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
US818686A
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English (en)
Inventor
Rene Perrenoud
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Individual
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Individual
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Filing date
Publication date
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Publication of US3608592A publication Critical patent/US3608592A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F11/00—Cutting wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/0007—Gripping, holding, or supporting devices for assembly entirely by hand
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0005—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for parts of driving means
    • G04D3/0007—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for parts of driving means for springs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0035—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the regulating mechanism
    • G04D3/0041—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the regulating mechanism for coil-springs

Definitions

  • a machine for making steel wire springs has a tray on which are mounted forming tools slidable towards the center of the tray, means for moving the wire perpendicular to the tray, and means for clamping and cutting the wire.
  • the means for moving the wire comprises two alternately operable clamps, one fixed and the other movable, and further includes a cylindrical member rotating in a fixed member integral with the tray.
  • the movable member has an eccentric opening therein for the passage of the wire coacting with an eccentric opening in the fixed member and means are provided for rotating the movable member in such a way as to clamp in a first phase of operation and then cut the wire even with the opening of the fixed member in a second phase of operation.
  • SHEET 1 [IF 3 AUTOMATIC MACHINE FOR MAKING STEEL WIRE SPRINGS
  • the present invention relates to an automatic machine for the making of springs in steel wire, and in particular, springs for timepieces.
  • the machine comprises a tray on which are mounted forming tools slidable in the direction of the center of the tray, means for making the wire advance perpendicularly to the tray, means for clamping and means for moving and cutting the wire, and the machine is characterized by the fact that the means for advancing the wire comprise two alternately operable clamps, one fixed and the other one movable, and the means for clamping and cutting comprises a cylindrical member rotatable in a fixed member integral with the tray.
  • the movable part has means therein for the passage of the wire and an eccentric opening corresponding an eccentric opening in the fixed member, means being provided for rotating the movable member in such a way as to clamp in a first phase of operation and then cut the wire even with the open 1 ing of the fixed member in a second phase of operation.
  • FIG. 1 shows an elevational and longitudinal cross section view of the machine
  • FIG. 2 shows in detail the control mechanism for advancing the wire
  • FIG. 3 shows a partial back view of the machine
  • FIG. 4 shows a cross section on a larger scale of the device for clamping and cutting.
  • the machine comprises a frame 1 on which is secured a circular tray 2 carrying thereon in circumferentially spaced-apart relationship vertical tools controlled by cam 4 through rotation of pinions 5 and gear 6. During operation, the tools work successively according to a given cycle and movement to form the spring on a rolling stud 7 on a movable spindle (not shown).
  • the feed of the wire 8 takes place through the center of a sliding arm 9, and through a rotatable shaft 19 having therein an eccentric hole and finally emerges in the perimeter of the forming stud 7.
  • the feed of wire is ensured by two clamps and 11, clamp 10 being secured at the end of the slidable shaft 9 and movable therewith while the clamp 11 is stationary.
  • Each clamp has a fixed jaw 10a, ll,respectively and a movable jaw 10b, 11b, respectively, and a spring 12, 13 respectively urging the movable jaw against the fixed jaw.
  • Clamps 10 and 11 are alternately opened by a sliding shaft 30 carrying at its extremity a projection 31 which, during movement of the shaft 30, alternately contacts the levers carrying the movable jaw in such a way as to alternately open the clamps.
  • the motion of shafts 9 and 30 is ensured by a pair of cam-controlled arms 14 and 15 while the withdrawal of these shafts is ensured by springs.
  • a micrometric adjusting screw 16 is provided for limiting the return movement of the clamp carrying shaft 9 and thus serves for adjusting the movement of the wire, the advanced position of the clamp 10 being invariably the same.
  • the arm 14 is controlled by a cam 28 while the arm 15 is controlled by a cam 29.
  • These two cams are mounted on a shaft carrying a gear 17 with conical teeth meshing with a similar gear 18 mounted perpendicular to the gear 17 and whose shaft carries tow cams 26 and 27 which control the clamping and cutting of the wire.
  • the device for clamping and cutting the wire comprises a shaft 19 mounted for rotation in ball bearings and having at one end thereof a gear 22 meshing with a pinion 25.
  • the pinion 25 is mounted at the end of a shaft 39 actuated by an arm 32 which is subjected to the action of the cams 26 and 27.
  • Shaft 19 has an eccentric opening 19b disposed parallel to the axis of the shaft (FIG. 4) and the first part of the opening 190 is conical to facilitate penetration therein of the wire 8 and to ensure the progressive deflection of this wire.
  • Shaft 19 has at its extremity a sleeve-carrying shaft 33a which can turn or rotate in the cylindrical opening of a member 33 which is mounted on a flange 34 secured on tray 2.
  • the sleeve-carrying shaft 33a has at one end a sleeve 20 positioned obliquely with respect to the sleeve-carrying shaft axis and functions to guide the wire towards an opening 21 made in the wall of the fixed member 33 and opening next to the rolling stud 7. Clamping of the wire is ensured by a slight angular movement of the sleeve-carrying shaft 33a relative to the opening 21. By rotating the sleeve-carrying shaft from the position shown in FIG. 4, the wire is partially cut in the contact plane of the sleeve 20 of member 33.
  • the sleeve-carrying shah 33a is not rigidly fixed to the end of the shaft 19 but is coupled thereto by means of stud 23 engaging in a diametrical slot 24 of the sleeve-carrying shaft. Precise contact between the extremity of the sleeve-carrying shaft and the front wall of flange 33 is ensured by a spring 40.
  • Cam 26 controls the cutting and cam 27 controls the clamping and actuate a single arm 32 which is divided into two forks 35 and 36, one of the other of these forks being adapted for coupling to a lever 37 secured on shaft 39.
  • the different shaping operations are then effected by tools, some of which actuate levers which rock perpendicu larly to the plane of the tray to cause the folding of the spring or to extract the finished spring.
  • the cutting of the spring by shearing is preferably effected before the extraction.
  • Automatic machine for the manufacture of wire springs for use in watchmaking from a length of wire comprising: a tray; a plurality of forming tools slidably mounted on said tray; means for advancing said wire perpendicularly to said tray; means for clamping and means for cutting said wire; said means for advancing said wire comprising two alternately operable clamps, one of said clamps being fixed and the other movable; said means for clamping and cutting comprising a fixed member integral with said tray and having therein means defining an eccentric opening, a cylindrical member having means therein defining an eccentric opening for allowing passage therethrough of said wire, means rotatably mounting said cylindrical member for rotation relative to said fixed member, and means for rotating said movable member relative to said fixed member to clamp in a first phase of operation said wire and to effect cutting of the wire even with said eccentric opening provided within said fixed member in a second phase of operation.
  • clamps comprise a fixed jaw and a movable jaw, a spring urging said movable jaw against said fixed jaw, and a slider reciprocating between each of said movable jaws for alternately opening said movable jaws during movement of said wire.
  • Machine according to claim 1 including a sliding arm with an axial bore for guiding said wire and carrying said movable clamp.
  • Machine according to claim 4 wherein a spring is provided for urging said slidable arm rearwardly together with means for adjusting the extent of the rearward movement of said shaft to adjust the advance of said wire.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wire Processing (AREA)
US818686A 1968-08-13 1969-04-23 Automatic machine for making steel wire springs Expired - Lifetime US3608592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1216368A CH495796A (fr) 1968-08-13 1968-08-13 Machine pour la fabrication de ressorts d'horlogerie en fil d'acier

Publications (1)

Publication Number Publication Date
US3608592A true US3608592A (en) 1971-09-28

Family

ID=4380462

Family Applications (1)

Application Number Title Priority Date Filing Date
US818686A Expired - Lifetime US3608592A (en) 1968-08-13 1969-04-23 Automatic machine for making steel wire springs

Country Status (2)

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US (1) US3608592A (fr)
CH (3) CH500026A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215278B1 (fr) * 1973-01-26 1976-05-14 Herckelbout Fils Sa

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2134469A (en) * 1937-10-26 1938-10-25 Torrington Mfg Co Spring forming device
US2170784A (en) * 1937-11-13 1939-08-22 Gen Electric Apparatus for flattening lead wires
US3296851A (en) * 1963-04-20 1967-01-10 Breuer Heinz Wire-bending machine
US3351101A (en) * 1964-12-03 1967-11-07 Sleeper & Hartley Inc Wire forming machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2134469A (en) * 1937-10-26 1938-10-25 Torrington Mfg Co Spring forming device
US2170784A (en) * 1937-11-13 1939-08-22 Gen Electric Apparatus for flattening lead wires
US3296851A (en) * 1963-04-20 1967-01-10 Breuer Heinz Wire-bending machine
US3351101A (en) * 1964-12-03 1967-11-07 Sleeper & Hartley Inc Wire forming machine

Also Published As

Publication number Publication date
CH495796A (fr) 1970-05-29
CH500026A (fr) 1970-12-15
CH1216368A4 (fr) 1970-05-29

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