GB1370281A - Flexible plastics hoses - Google Patents

Flexible plastics hoses

Info

Publication number
GB1370281A
GB1370281A GB4203070A GB4203070A GB1370281A GB 1370281 A GB1370281 A GB 1370281A GB 4203070 A GB4203070 A GB 4203070A GB 4203070 A GB4203070 A GB 4203070A GB 1370281 A GB1370281 A GB 1370281A
Authority
GB
United Kingdom
Prior art keywords
passage
extruded
sleeve
die
outlet
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
GB4203070A
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.)
Creators Ltd
Original Assignee
Creators 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 Creators Ltd filed Critical Creators Ltd
Priority to GB4203070A priority Critical patent/GB1370281A/en
Publication of GB1370281A publication Critical patent/GB1370281A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29L2028/00—Nets or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1370281 Extruded reinforced tube CREATORS Ltd 2 Sept 1971 [2 Sept 1970] 42030/70 Addition to 1281682 Heading B5A [Also in Division F2] A thermoplastic or elastomeric tube extruded from an annular die outlet comprise a wall of a first material, e.g. soft polyvinyl chloride, reinforced by partially or completely embedded and simultaneously extruded rings or circumferentially extending ribs of more rigid or stronger material, e.g. rigid polyvinylchloride, which have been incorporated into the first material upstream of the extrusion outlet. In the Fig. 1 embodiment, the first material is supplied by a first screw extruder to the extrusion passage 2, via a tangential inlet to an annular chamber 6 and a passage 4, and the second material is supplied from a second screw extruder, via a similar inlet 5a and chamber 5, and the annular outlet of a passage 3, the discharge from which is intermittently partially, or completely, obturated by a reciprocated sleeve 23. Intermittent complete obturation produces axially separated circumferential rings, Fig. 6 (not shown), of the second material embedded within the first material, and the rings may be of circular or elliptical section in the axial plane. Partial obduration produces circumferential ribs of the second material interconnected axially by circumferentially continuous webs thereof. Alternatively, the obdurating end of the sleeve 23 may be castellated to produce the reinforcement as an interconnected mesh of circumferentially and axially extending webs 53, 54, Fig. 7. The second material flows to the annular outlet of the passage 3 through the passages of a spider 21 supporting an inner die member 9 which, immediately at the outlet of passage 3, may be provided with a lip (not shown) to deflect the second material fully within the first material. An outer die member 10 defining the passage 2, is radially adjustable by screws 10a. In the Fig. 8 modification of the Fig. 1 embodiment, the sleeve acts to obdurate the passageway 4 from which the second material is discharged, with the first material being continuously discharged internally thereof from the passage 3. A reinforcement of the second material on the surface of the first material, may be completely embedded by a second layer of the first material extruded from a further passage in the die. The sleeve 23 of the Figs. 1 and 8 embodiment, is connected for its reciprocatory movement to a yoke 33, via yoke and sleeve flanges 35, 36 locating in grooves 39, 40 of a plurality of axially slidable bolts 37, the yoke 33 being pivotally mounted between a pair of arms 31 pivoted at 32 about the die at one end for reciprocatory displacement at their other ends by an eccentric (not shown). The extruded tube is drawn from the die by a traction device and cooled. The dies are electrically heated.
GB4203070A 1971-09-02 1971-09-02 Flexible plastics hoses Expired GB1370281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4203070A GB1370281A (en) 1971-09-02 1971-09-02 Flexible plastics hoses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4203070A GB1370281A (en) 1971-09-02 1971-09-02 Flexible plastics hoses

Publications (1)

Publication Number Publication Date
GB1370281A true GB1370281A (en) 1974-10-16

Family

ID=10422511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4203070A Expired GB1370281A (en) 1971-09-02 1971-09-02 Flexible plastics hoses

Country Status (1)

Country Link
GB (1) GB1370281A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338273A (en) * 1979-09-06 1982-07-06 Commissariat A L'energie Atomique Process for the production of alveolar modules
US4359354A (en) * 1980-03-03 1982-11-16 The Firestone Tire & Rubber Company Method of forming self-sealing tire body composite for tires
US4636346A (en) * 1984-03-08 1987-01-13 Cordis Corporation Preparing guiding catheter
US4828780A (en) * 1987-12-01 1989-05-09 Killon Extruders, Inc. Method for encapsulating extruding materials
US5062782A (en) * 1990-07-24 1991-11-05 Bridgestone/Firestone, Inc. Coextrusion apparatus for varying the inner and/or outer profile of a tubular extrudate
US5069850A (en) * 1990-07-24 1991-12-03 Bridgestone/Firestone, Inc. Coextrusion apparatus and method using a rigid die for varying the outer profile of a tubular extrudate
US5108682A (en) * 1990-07-24 1992-04-28 Bridgestone/Firestone, Inc. Coextrusion apparatus and method using an elastic die for varying the outer profile of a tubular extrudate
US5128084A (en) * 1990-07-24 1992-07-07 Bridgestone Firestone Inc Coextrusion apparatus and method for varying the inner profile of a tubular extrudate
FR2698581A1 (en) * 1992-11-30 1994-06-03 Lefort Olivier Extruded and blow moulded thermoplastics parison mfr. - comprises a multi:cellular structure and consists of superposed layers
WO1995024302A1 (en) * 1994-03-11 1995-09-14 Olivier Simon Lefort Tubular multilayer preform and method and device for the manufacture thereof
WO2020178783A1 (en) * 2019-03-05 2020-09-10 3M Innovative Properties Company Co-extruded multilayer articles including continuous layer and discontinuous layer
CN114829105A (en) * 2019-10-15 2022-07-29 考特斯机械制造有限公司 Extrusion technique and hose forming technique for forming plastic parison

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338273A (en) * 1979-09-06 1982-07-06 Commissariat A L'energie Atomique Process for the production of alveolar modules
US4359354A (en) * 1980-03-03 1982-11-16 The Firestone Tire & Rubber Company Method of forming self-sealing tire body composite for tires
US4636346A (en) * 1984-03-08 1987-01-13 Cordis Corporation Preparing guiding catheter
US4828780A (en) * 1987-12-01 1989-05-09 Killon Extruders, Inc. Method for encapsulating extruding materials
US5108682A (en) * 1990-07-24 1992-04-28 Bridgestone/Firestone, Inc. Coextrusion apparatus and method using an elastic die for varying the outer profile of a tubular extrudate
US5069850A (en) * 1990-07-24 1991-12-03 Bridgestone/Firestone, Inc. Coextrusion apparatus and method using a rigid die for varying the outer profile of a tubular extrudate
US5062782A (en) * 1990-07-24 1991-11-05 Bridgestone/Firestone, Inc. Coextrusion apparatus for varying the inner and/or outer profile of a tubular extrudate
US5128084A (en) * 1990-07-24 1992-07-07 Bridgestone Firestone Inc Coextrusion apparatus and method for varying the inner profile of a tubular extrudate
FR2698581A1 (en) * 1992-11-30 1994-06-03 Lefort Olivier Extruded and blow moulded thermoplastics parison mfr. - comprises a multi:cellular structure and consists of superposed layers
WO1995024302A1 (en) * 1994-03-11 1995-09-14 Olivier Simon Lefort Tubular multilayer preform and method and device for the manufacture thereof
WO2020178783A1 (en) * 2019-03-05 2020-09-10 3M Innovative Properties Company Co-extruded multilayer articles including continuous layer and discontinuous layer
CN113543951A (en) * 2019-03-05 2021-10-22 3M创新有限公司 Coextruded multilayer article comprising continuous and discontinuous layers
US11618237B2 (en) 2019-03-05 2023-04-04 3M Innovative Properties Company Co-extruded multilayer articles including continuous layer and discontinuous layer
CN114829105A (en) * 2019-10-15 2022-07-29 考特斯机械制造有限公司 Extrusion technique and hose forming technique for forming plastic parison

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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