GB887002A - Improvements in or relating to the manufacture of circumferentially corrugated pipes - Google Patents

Improvements in or relating to the manufacture of circumferentially corrugated pipes

Info

Publication number
GB887002A
GB887002A GB3433358A GB3433358A GB887002A GB 887002 A GB887002 A GB 887002A GB 3433358 A GB3433358 A GB 3433358A GB 3433358 A GB3433358 A GB 3433358A GB 887002 A GB887002 A GB 887002A
Authority
GB
United Kingdom
Prior art keywords
pipe
die
mandrel
corrugation
pusher
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
GB3433358A
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.)
PALMER AERO PRODUCTS Ltd
Original Assignee
PALMER AERO PRODUCTS Ltd
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 PALMER AERO PRODUCTS Ltd filed Critical PALMER AERO PRODUCTS Ltd
Priority to GB3067799X priority Critical
Priority to GB3433358A priority patent/GB887002A/en
Priority to GB1238194X priority
Priority claimed from US846140A external-priority patent/US3067799A/en
Publication of GB887002A publication Critical patent/GB887002A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/20Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/205Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00Corrugating tubes
    • B21D15/04Corrugating tubes transversely, e.g. helically
    • B21D15/10Corrugating tubes transversely, e.g. helically by applying fluid pressure
    • B21D15/105Corrugating tubes transversely, e.g. helically by applying fluid pressure by applying elastic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10Stamping using yieldable or resilient pads
    • B21D22/105Stamping using yieldable or resilient pads of tubular products

Abstract

887,002. Making corrugated pipes; stamping. PALMER AERO PRODUCTS Ltd., COOPER, T. H., and GOWARD, S. H. Sept. 9, 1959 [Oct. 27, 1958], No. 34333/58. Classes 83 (2) and 83 (4). A machine for corrugating pipes and tubes in which the pipe or tube is supported on a mandrel and a disc or ring of rubber or like resilient material is compressed and expanded by a pusher to expand the pipe into an annular die cavity surrounding the pipe is characterized by the provision of means for moving the die axially by a distance equal to the pitch of the corrugations and means for applying, during the expansion operation, an endwise force on to the pipe to tend to feed the pipe into the die from the unworked end of the pipe so that the tendency to draw material from a previously formed corrugation during the expansion of the pipe is reduced. The machine comprises a bed 10 supporting at one end a mandrel 12 on a pillar 11 and one or more steadies 14. At the other end of the bed is secured a cylinder block 16 providing two double-acting hydraulic cylinders 17, 18 having their rams 19, 20 in alignment along the bed. The ram 19 is in the form of a sleeve surrounding the ram 20 which constitutes a pusher for compressing and expanding a rubber disc 22 against the end of the mandrel 12. The outer ram 19 engages the free end of the pipe 23 to be corrugated to push the pipe towards the mandrel to prevent the tendency to draw material from a previously formed corrugation during the expansion of the pipe. Clamped to the centre of the bed 10 is a slidable bracket 26 carrying the split die 27, 28 formed internally with two and one-half annular grooves 29. The die is opened and closed by a double-acting hydraulic cylinder 30. An adjustable stop 37 limits the movement of the bracket 26, such movement being effected by a double-acting hydraulic cylinder 36. The end of the pipe projecting from the die is gripped in an hydraulically-operated split clamp. A guide 14 is provided for the pusher ram 20. In operation, the pipe is fitted over the mandrel 12 and the projecting end of the pipe passes through the die and over the pusher, there being a rubber disc 22 located between the pusher and mandrel. The die is closed on to the pipe and the tube is expanded into the innermost groove 29a of the die by compression of the rubber disc to form the first corrugation 41. The pressure on the rubber disc is released and the clamp 40 is closed on the pipe. The die is opened and moved one corrugation along the pipe, whereupon the clamp 40 is released and the die closed, to engage the formed corrugation in the second groove 29b. The die is advanced to the stop 37 carrying the pipe with it after which the next corrugation is formed as hitherto. An hydraulic pump supplies pressure fluid to the ram cylinders via control valves to effect automatic operation of the machine in the proper sequence. A trip device (not shown) may be pre-set to stop the machine after a predetermined number of corrugations have been formed.
GB3433358A 1958-10-27 1958-10-27 Improvements in or relating to the manufacture of circumferentially corrugated pipes Expired GB887002A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3067799X 1958-10-27
GB3433358A GB887002A (en) 1958-10-27 1958-10-27 Improvements in or relating to the manufacture of circumferentially corrugated pipes
GB1238194X 1958-10-27

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3433358A GB887002A (en) 1958-10-27 1958-10-27 Improvements in or relating to the manufacture of circumferentially corrugated pipes
US846140A US3067799A (en) 1958-10-27 1959-10-13 Manufacture of circumferentially corrugated pipes
FR808430A FR1238194A (en) 1958-10-27 1959-10-26 Machine for forming circumferential corrugations on pipes or tubes

Publications (1)

Publication Number Publication Date
GB887002A true GB887002A (en) 1962-01-10

Family

ID=27259205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3433358A Expired GB887002A (en) 1958-10-27 1958-10-27 Improvements in or relating to the manufacture of circumferentially corrugated pipes

Country Status (2)

Country Link
FR (1) FR1238194A (en)
GB (1) GB887002A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293270A1 (en) * 1974-12-03 1976-07-02 Springbok Appointments Prop Lt METHOD AND APPARATUS FOR THE MANUFACTURING OF UPRIGHTS CONTAINING TWO BULBING PARTS OF A SINGLE PIECE
US4048274A (en) * 1975-07-10 1977-09-13 Monsanto Company Process for refrigerator construction
CN101885018A (en) * 2010-07-27 2010-11-17 哈尔滨工业大学 Viscoelasto-plastic soft mode forming method of minor-radius corrugated surface thin-wall metal barrel part

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493253A (en) * 2016-11-27 2017-03-15 合肥瑞登机械设备有限公司 The convex forming machine of capillary tube blanking pier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293270A1 (en) * 1974-12-03 1976-07-02 Springbok Appointments Prop Lt METHOD AND APPARATUS FOR THE MANUFACTURING OF UPRIGHTS CONTAINING TWO BULBING PARTS OF A SINGLE PIECE
US4052872A (en) * 1974-12-03 1977-10-11 Springbok Appointments (Proprietary) Limited Stanchions
US4048274A (en) * 1975-07-10 1977-09-13 Monsanto Company Process for refrigerator construction
CN101885018A (en) * 2010-07-27 2010-11-17 哈尔滨工业大学 Viscoelasto-plastic soft mode forming method of minor-radius corrugated surface thin-wall metal barrel part
CN101885018B (en) * 2010-07-27 2013-05-29 哈尔滨工业大学 Viscoelasto-plastic soft mode forming method of minor-radius corrugated surface thin-wall metal barrel part

Also Published As

Publication number Publication date
FR1238194A (en) 1960-08-05

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