GB1510506A - Production of plastics drain pipe - Google Patents

Production of plastics drain pipe

Info

Publication number
GB1510506A
GB1510506A GB21675/75A GB2167575A GB1510506A GB 1510506 A GB1510506 A GB 1510506A GB 21675/75 A GB21675/75 A GB 21675/75A GB 2167575 A GB2167575 A GB 2167575A GB 1510506 A GB1510506 A GB 1510506A
Authority
GB
United Kingdom
Prior art keywords
cutting
knife
pipe
kirchner
blades
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
GB21675/75A
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.)
Frankische Isolierrohr and Metallwaren Werke Gehrueder Kirchner
Original Assignee
Frankische Isolierrohr and Metallwaren Werke Gehrueder Kirchner
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 Frankische Isolierrohr and Metallwaren Werke Gehrueder Kirchner filed Critical Frankische Isolierrohr and Metallwaren Werke Gehrueder Kirchner
Publication of GB1510506A publication Critical patent/GB1510506A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B26F1/0053—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes by machining, e.g. cutting, grinding, projections on the tube wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
    • B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0045—Perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

1510506 Perforating corrugated pipes F KIRCHNER and H KIRCHNER [trading as FRANKISCHE ISOLIERROHR - UND METALLWAREN - WERKE GEB KIRCHNER] 20 May 1975 [21 May 1974] 21675/75 Heading B5A A plastics drainage pipe, which has transverse corrugations provided with water entry holes around its periphery in the exterior valleys of the corrugations is made by extruding a plastics tube into a moving mould cavity defined by the co-operation, along part of their path of travel, of two or more chains of moulds parts 3, 3<SP>1</SP>, Fig. 2, which move along endless paths, the tube being urged by internal air pressure against the cavity comprising a ribbed surface defining the corrugations, and having projections 10 defining bosses in the pipe, which are then cut off to form the drain holes by cutting means located within the pipe and rotating about an axis co-axial with the pipe. The cutting means may be located downstream of, or within the mould cavity as in Fig. 2, where it comprises a ring knife 7 rotated by means (not shown) and having axially directed cutting edges 25, carried by a die extrusion which is perforated along its length, for admission of the pipe internal air pressure which is maintained by the knife 20, as well as by a guide 6. The knife 7 comprises 4 circumferentially spaced blades which are radially expansibly adjustable into their cutting position upon displacement of the knife 7 over a core 17, and against Belville springs 27, by an adjusting nut 23. Cutting of the bosses, e.g. downstream of the mould cavity, may alternatively be effected, Fig. 4, by the cutting edges 42 of blades 41, 411 which are carried for rotation by a shaft 39 rotated by a compressed air driven turbine 31, the blades being slidably or pivotally mounted for centrifugal outward displacement into their cutting positions, against spring means. The cutting means may also comprise knife assemblies having cutting edges at an angle to the radial direction, and radially adjustably mounted on a wheel.
GB21675/75A 1974-05-21 1975-05-20 Production of plastics drain pipe Expired GB1510506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2424640A DE2424640C3 (en) 1974-05-21 1974-05-21 Device for the production of drainage pipes with transversely corrugated walls made of plastic

Publications (1)

Publication Number Publication Date
GB1510506A true GB1510506A (en) 1978-05-10

Family

ID=5916146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21675/75A Expired GB1510506A (en) 1974-05-21 1975-05-20 Production of plastics drain pipe

Country Status (12)

Country Link
AT (1) AT354072B (en)
BE (1) BE829272A (en)
CH (1) CH594491A5 (en)
DE (1) DE2424640C3 (en)
DK (1) DK215975A (en)
ES (1) ES437851A1 (en)
FI (1) FI751476A (en)
FR (1) FR2271913B1 (en)
GB (1) GB1510506A (en)
NL (1) NL7505900A (en)
NO (1) NO751708L (en)
SE (1) SE7505676L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2576795A (en) * 2017-12-05 2020-03-04 Porsche Ag Method and apparatus for producing a corrugated tube

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500284A (en) * 1983-09-16 1985-02-19 Lupke Manfred Arno Alfred Forming single wall bells in double wall pipe
GB8613233D0 (en) * 1986-05-30 1986-07-02 Angus Fire Armour Ltd Hoses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2576795A (en) * 2017-12-05 2020-03-04 Porsche Ag Method and apparatus for producing a corrugated tube
GB2576795B (en) * 2017-12-05 2022-01-19 Porsche Ag Method and apparatus for producing a corrugated tube

Also Published As

Publication number Publication date
AT354072B (en) 1979-12-27
DE2424640C3 (en) 1979-09-27
BE829272A (en) 1975-09-15
ES437851A1 (en) 1977-01-01
FI751476A (en) 1975-11-22
NO751708L (en) 1975-11-24
SE7505676L (en) 1975-11-24
DK215975A (en) 1975-11-22
DE2424640A1 (en) 1975-12-04
FR2271913B1 (en) 1978-10-13
DE2424640B2 (en) 1979-02-08
FR2271913A1 (en) 1975-12-19
CH594491A5 (en) 1978-01-13
NL7505900A (en) 1975-11-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee