ES364944A1 - Improvements in and relating to Apparatus for the Continuous Production of Tubular Bodies of Foamed Materials. - Google Patents

Improvements in and relating to Apparatus for the Continuous Production of Tubular Bodies of Foamed Materials.

Info

Publication number
ES364944A1
ES364944A1 ES364944A ES364944A ES364944A1 ES 364944 A1 ES364944 A1 ES 364944A1 ES 364944 A ES364944 A ES 364944A ES 364944 A ES364944 A ES 364944A ES 364944 A1 ES364944 A1 ES 364944A1
Authority
ES
Spain
Prior art keywords
tube
pipe
mould
foil
slit
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
ES364944A
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.)
SELM KUNSTSTOFF VERFAHREN
Original Assignee
SELM KUNSTSTOFF VERFAHREN
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 SELM KUNSTSTOFF VERFAHREN filed Critical SELM KUNSTSTOFF VERFAHREN
Publication of ES364944A1 publication Critical patent/ES364944A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • F16L59/022—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves with a single slit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/001—Cutting tubes longitudinally
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape

Abstract

A foamed plastics insulation tube for pipes, comprising foamed polyurethane 23 encased between an outer plastics foil 4 and an inner paper foil 5 and formed with a longitudinal slit moulded through a wall of the tube, is continuously moulded by simultaneously feeding the outer and inner foils through a mould tube 8 provided with an upper longitudinal slit through which extends a fillet 91 of a core 9 the foam reactants being introduced from a pipe 19 into a trough formed by the outer foil 4 prior to entering the mould. The fillet 91 provides a support for the foils 4, 5 whereby they are drawn through the mould assembly by a pair of roller chain conveyers 18. The mould core 9 is clamped to supports 11, 12 by an adjustable tension from springs 21 and contains a pipe 24 for the return of coolant which is introduced between the pipe 24 and core 9 at the inlet end of the mould. The core 9 is adjustable in the radial direction. A saw 13 introduced through the moulded tube slit forms a longitudinal slit extending substantially throughout the thickness of the opposite wall of the tube, whereby assembly over a pipe is facilitated. The ends of all but one of the foil strips extending beyond the moulded slit are severed by a cutter 14 whereby the remaining foil strip end may be adhesively bonded beyond the slit to secure the insulation around a pipe. The insulation tube is cut to desired lengths by a transversely reciprocating travelling saw 16.
ES364944A 1968-04-26 1969-03-18 Improvements in and relating to Apparatus for the Continuous Production of Tubular Bodies of Foamed Materials. Expired ES364944A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681778407 DE1778407C3 (en) 1968-04-26 1968-04-26 Device for the continuous production of longitudinally slotted, tubular bodies from foamed polyurethane

Publications (1)

Publication Number Publication Date
ES364944A1 true ES364944A1 (en) 1971-03-16

Family

ID=5703426

Family Applications (1)

Application Number Title Priority Date Filing Date
ES364944A Expired ES364944A1 (en) 1968-04-26 1969-03-18 Improvements in and relating to Apparatus for the Continuous Production of Tubular Bodies of Foamed Materials.

Country Status (10)

Country Link
JP (1) JPS4929953B1 (en)
BE (1) BE725726A (en)
CH (1) CH470959A (en)
DE (1) DE1778407C3 (en)
DK (1) DK123917B (en)
ES (1) ES364944A1 (en)
FR (1) FR1595192A (en)
GB (1) GB1187196A (en)
NO (1) NO136283C (en)
SE (1) SE333237B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149060U (en) * 1974-10-09 1976-04-13
DE3126505A1 (en) * 1981-07-04 1983-01-20 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Process for producing a heat-insulated conduit pipe
DE19513455C2 (en) * 1995-04-08 1997-07-10 Greiz Plasttechnik Method and device for changing and magazining the internal support mandrels of a system for the continuous foaming of pipe insulation shells
GB2560194B (en) * 2017-03-03 2021-03-31 Kingspan Holdings Irl Ltd Process and apparatus for producing shaped profile sections
CN112706333B (en) * 2020-12-01 2022-11-29 机械工业第九设计研究院股份有限公司 Automatic grabbing equipment for production of automotive interior A column protective plate

Also Published As

Publication number Publication date
FR1595192A (en) 1970-06-08
DE1778407A1 (en) 1971-07-29
JPS4929953B1 (en) 1974-08-08
GB1187196A (en) 1970-04-08
SE333237B (en) 1971-03-08
NO136283B (en) 1977-05-09
NO136283C (en) 1977-08-17
DE1778407B2 (en) 1977-10-20
DE1778407C3 (en) 1978-06-22
BE725726A (en) 1969-05-29
DK123917B (en) 1972-08-21
CH470959A (en) 1969-04-15

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