ES381950A1 - Apparatus for forming retaining members - Google Patents

Apparatus for forming retaining members

Info

Publication number
ES381950A1
ES381950A1 ES381950A ES381950A ES381950A1 ES 381950 A1 ES381950 A1 ES 381950A1 ES 381950 A ES381950 A ES 381950A ES 381950 A ES381950 A ES 381950A ES 381950 A1 ES381950 A1 ES 381950A1
Authority
ES
Spain
Prior art keywords
spring
loops
projecting
holder
bending
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
Application number
ES381950A
Other languages
Spanish (es)
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.)
HEETMANN AND FINKENSIEP KG
Original Assignee
HEETMANN AND FINKENSIEP KG
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 HEETMANN AND FINKENSIEP KG filed Critical HEETMANN AND FINKENSIEP KG
Publication of ES381950A1 publication Critical patent/ES381950A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21F35/02—Bending or deforming ends of coil springs to special shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

Apparatus for bending shanks of helical springs into loops wherein tangentially projecting shanks of the helical spring are bent over to extend axially parallel with the axis of the spring body and then loops are formed therein comprises two mechanically drivable and spacedapart bending units which are adjustable relative to each other and each have a device for bending a spring shank and a device for forming loops and a holder mounted between said units for clamping the coiled part of the spring. The two end loops of the spring are formed simultaneously. Two tail stocks 2 are arranged on a frame 1 and each carry rotatable coaxial rods 3 axially adjustable in the tailstock. Each rod carries two adjustable clamping grips 4 in which hydraulic rotaty pistons 5, 6 and 7, 8 are adjustably mounted by means of links 4 and 11. The rotary pistons have driven shafts 9 carrying interchangeable bending tool heads 10. The holder 12 has jaws 14 actuated by a hand lever 13 for gripping a spring. The holder also has an hydraulic impulse generator 16 for actuating rotary pistons when the jaws are closed. In operation, firstly each tangentially projecting spring shank 17 (Fig. 2, not shown) is bent-over about an abutment 19 (Fig. 3) by a finger 18 projecting from the tool head 10. The axially extending shanks now extend between an axially projecting mandrel 20 and an axially parallel projecting finger 18 of the tool heads 10 and rotation of the heads form loops 21. The angle of rotation of the tool heads is controlled by time switches in an automatically timed sequence. Springs 18 are fed to the holder 12 from a magazine.
ES381950A 1969-07-23 1970-07-17 Apparatus for forming retaining members Expired ES381950A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937340 DE1937340A1 (en) 1969-07-23 1969-07-23 Device for bending the eyes of coil springs

Publications (1)

Publication Number Publication Date
ES381950A1 true ES381950A1 (en) 1972-12-01

Family

ID=5740602

Family Applications (1)

Application Number Title Priority Date Filing Date
ES381950A Expired ES381950A1 (en) 1969-07-23 1970-07-17 Apparatus for forming retaining members

Country Status (11)

Country Link
US (1) US3672410A (en)
JP (1) JPS4828271B1 (en)
AT (1) AT300523B (en)
BE (1) BE752946A (en)
CA (1) CA927244A (en)
CH (1) CH523104A (en)
DE (1) DE1937340A1 (en)
ES (1) ES381950A1 (en)
FR (1) FR2054063A5 (en)
GB (1) GB1248029A (en)
NL (1) NL7010334A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874425A (en) * 1973-07-03 1975-04-01 Guenther A W E Wire bender
GB1459948A (en) * 1973-10-31 1976-12-31 France Bed Co Wire-spring manufacturing
US3915204A (en) * 1974-08-22 1975-10-28 Rich Ind Inc Spring hook forming machine
FR2415497A1 (en) * 1978-01-30 1979-08-24 Missioux Jean Leon Machine for looping ends of coil springs - has rams to hold spring firm while arms raise free end and form loop for final trimming
US4745951A (en) * 1982-07-19 1988-05-24 Guenther Arthur W E Coil spring hooking method and apparatus
ATE326300T1 (en) * 2004-03-18 2006-06-15 Wafios Ag METHOD FOR PRODUCING AN EYELET AT THE END OF A SPRING BODY MOLDED FROM A STRAND OF WIRE AND DEVICE FOR PRODUCING SAME
CN108705012B (en) * 2018-06-15 2023-11-17 苏州市众寅弹簧制造有限公司 Balanced multi-angle torsional spring bending device
CN111151690A (en) * 2020-02-28 2020-05-15 岳阳县涌泉五金弹簧厂 Spring forming device and production method
CN114192697B (en) * 2021-12-24 2023-08-25 金陵科技学院 On-site reinforcing steel bar bending system for construction machinery

Also Published As

Publication number Publication date
CA927244A (en) 1973-05-29
CH523104A (en) 1972-05-31
GB1248029A (en) 1971-09-29
NL7010334A (en) 1971-01-26
US3672410A (en) 1972-06-27
JPS4828271B1 (en) 1973-08-30
DE1937340A1 (en) 1971-02-04
BE752946A (en) 1970-12-16
FR2054063A5 (en) 1971-04-16
AT300523B (en) 1972-07-25

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