RO91060B1 - Process and installation for making flexible hoses - Google Patents

Process and installation for making flexible hoses

Info

Publication number
RO91060B1
RO91060B1 RO116054A RO11605484A RO91060B1 RO 91060 B1 RO91060 B1 RO 91060B1 RO 116054 A RO116054 A RO 116054A RO 11605484 A RO11605484 A RO 11605484A RO 91060 B1 RO91060 B1 RO 91060B1
Authority
RO
Romania
Prior art keywords
mandrel
hose
profile
piece
water
Prior art date
Application number
RO116054A
Other languages
Romanian (ro)
Other versions
RO91060A2 (en
Inventor
Gheorghe Adamescu
Petru Antonesei
Andrei Ursache
Anton Olaru
Constantin Maftei
Mihai Ciornei
Comstantin Vicol
Danut Hurmuz
Gheorghe Salichi
Gheorghe Manasii
Original Assignee
Intreprinderea De Prelucrari Mase Plastice"Moldoplast"
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 Intreprinderea De Prelucrari Mase Plastice"Moldoplast" filed Critical Intreprinderea De Prelucrari Mase Plastice"Moldoplast"
Priority to RO116054A priority Critical patent/RO91060B1/en
Publication of RO91060A2 publication Critical patent/RO91060A2/en
Publication of RO91060B1 publication Critical patent/RO91060B1/en

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Inventia se refera la un procedeu si la o instalatie pentru obtinerea furtunurilor flexibile din policlorura de vinil, prin înfasurarea elicoidala a unui profil coextrus ce contine un miez PVC, rigid sau ABS acoperit cu un strat PVC plastifiat, într-o gama tipodimensionala între 10-300 mm. Procedeul, conform inventiei, consta în coextruderea unui profil cu o geometrie bine definita pentru fiecare tipodimensiune de furtun printr-un procedeu clasic, furtun care este format dintr-un miez de PVC rigid sau alt material învelit cu un strat de PVC plastificat cu duritate 5-85 degree Sh. opac sau transparent, care în stare termoplastica este preluat de dornul de formare racit în interior cu apa termostata, ce se roteste cu viteza constanta, fiind transformat într-o elice al carui pas este determinat de unghiul unei piese elicoidale ce îmbraca dornul, precum si o rola profilata care concomitent cu mentinerea pasului asigura si sudura spirelor, pentru desprinderea de pe dorn a furtunului format la limita de contact între profilul coextrus si piesa elicoidala montata pe dorn, aplicîndu-se un jet de apa rece, iar pentru racirea furtunului format folosindu-se apa pulverizata în portiunea cuprinsa între dornul de formare si tragatorul cu role înclin ate. Instalatia pentru aplicarea procedeului se compune dintr-un dorn ce are un diametru de 3-8 % mai mare fata de diametrul interior al furtunului ce trebuie obtinut, o piesa elicoidala ce îmbraca pe o anumita portiune dornul, un sistem de antrenarece asigura dornului o miscare de rotatie cu viteza constanta prin intermediul unui motor, un dispozitiv ce asigura racirea interioara a dornului cu ajutorul apThe invention relates to a process and apparatus for obtaining flexible polyvinyl chloride hoses by coiling a coextrusion profile containing a rigid PVC or ABS coated ABS plasticized plastics layer in a 10- 300 mm. The process according to the invention consists in the co-extrusion of a profile with a well-defined geometry for each hose-type size by a classic hose which consists of a rigid PVC core or other material wrapped with a plasticized PVC layer of hardness 5 -85 degree Sh. opaque or transparent, which in the thermoplastic state is taken up by the molding mandrel cooled inside with the thermostatic water, rotating at constant speed, being transformed into a propeller whose pitch is determined by the angle of a helical piece that bears the mandrel, as well a roller profile which simultaneously with the maintenance of the step also ensures the welding of the spirals, for detaching the hose formed at the limit of contact between the coextrus profile and the screwed piece mounted on the mandrel, applying a cold water jet, and for cooling the hose formed using - Spray water in the portion between the drilling pin and the tiller roller. The installation for the application of the process consists of a mandrel having a diameter of 3-8% greater than the inner diameter of the hose to be obtained, a helicoidal piece which overlaps a certain portion of the mandrel, a drive system that provides the mandrel with a movement constant speed rotation by means of a motor, a device which ensures the inner cooling of the mandrel by means of water

RO116054A 1984-10-22 1984-10-22 Process and installation for making flexible hoses RO91060B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO116054A RO91060B1 (en) 1984-10-22 1984-10-22 Process and installation for making flexible hoses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO116054A RO91060B1 (en) 1984-10-22 1984-10-22 Process and installation for making flexible hoses

Publications (2)

Publication Number Publication Date
RO91060A2 RO91060A2 (en) 1987-05-15
RO91060B1 true RO91060B1 (en) 1987-06-02

Family

ID=20115709

Family Applications (1)

Application Number Title Priority Date Filing Date
RO116054A RO91060B1 (en) 1984-10-22 1984-10-22 Process and installation for making flexible hoses

Country Status (1)

Country Link
RO (1) RO91060B1 (en)

Also Published As

Publication number Publication date
RO91060A2 (en) 1987-05-15

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