IL42001A - Process for the production of a reinforced hose of plastic material which is smooth from within and helically grooved from outside - Google Patents
Process for the production of a reinforced hose of plastic material which is smooth from within and helically grooved from outsideInfo
- Publication number
- IL42001A IL42001A IL42001A IL4200173A IL42001A IL 42001 A IL42001 A IL 42001A IL 42001 A IL42001 A IL 42001A IL 4200173 A IL4200173 A IL 4200173A IL 42001 A IL42001 A IL 42001A
- Authority
- IL
- Israel
- Prior art keywords
- ribbon
- winding mandrel
- heat
- sheave
- adjoining
- Prior art date
Links
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Claims (5)
1. Process for the manufacture of an Internally smooth and externally helically threaded hose of synthetic material with a support coil, characterized in tha a ribbon with a core of hard thermoplastic material, which later forms the suppor coil, and a core-envelope with lateral lips of soft thermoplastic material is fed firs over a rotating driven sheave which is provided with an annular groove for accommodating a bulge of the ribbon caused by the core, and subsequently to a rotating cylindrical winding mandrel and there wound into the hose, such that the ribbon-lips of adjoining windings overlap or abut and are heat-sealed, whereafter the hose is axlally pushed off the winding mandrel over the sheave which presses it radially against the winding mandrel, and a similar designed sheave which, however, is arranged at the other side of the winding mandrel.
2. Process according to Claim 1, characterized in that the ribbon is formed by two extruders of which the one feeds the core material and the other the envelope material to a shaping tool from which the ribbon is fed directly over the sheave to the winding mandrel, whereafter the adjoining ribbon-edges are heat-sealed with utilization of the sensible heat of the ribbon.
3. Process according to one of the preceding claims, characterized in that the ribbon is led over the first sheave in opposite winding sense as corresponds to the drive of the winding mandrel and subsequently brought on the winding mandrel in such a manner that the ribbo follows an S-shaped path. 42001/2 7 -
4. Process according to Claim 1, characterized in that the ribbon is fed cooled to the winding mandrel and the ribbon-edges adjoining there are heat-sealed by means of a heat-sealing device, for example with hot air.
5. Process according to Claims 1 to 3, characterized in that, in addition to th sensible hea of the ribbon supplementary heat is supplied to adjoining ribbon-edges which are on the winding mandrel, by a heat-sealing device* For the Applicants RTNERS SCsCB
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL42001A IL42001A (en) | 1973-04-10 | 1973-04-10 | Process for the production of a reinforced hose of plastic material which is smooth from within and helically grooved from outside |
| BR411873A BR7304118D0 (en) | 1973-04-10 | 1973-06-01 | A SPIRAL TO SUPPORT THE PROCESS, FOR THE MANUFACTURE OF A HOSE OF PLASTIC MATERIAL, WITHIN A SMOOTH AND OUTSIDE HELICOIDAL |
| ES415664A ES415664A1 (en) | 1973-04-10 | 1973-06-07 | Procedure for the manufacture of an interiormed smooth plastic hose and external helicoidal hose with a support spiral. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL42001A IL42001A (en) | 1973-04-10 | 1973-04-10 | Process for the production of a reinforced hose of plastic material which is smooth from within and helically grooved from outside |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL42001A0 IL42001A0 (en) | 1973-06-29 |
| IL42001A true IL42001A (en) | 1976-07-30 |
Family
ID=11047060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL42001A IL42001A (en) | 1973-04-10 | 1973-04-10 | Process for the production of a reinforced hose of plastic material which is smooth from within and helically grooved from outside |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BR7304118D0 (en) |
| ES (1) | ES415664A1 (en) |
| IL (1) | IL42001A (en) |
-
1973
- 1973-04-10 IL IL42001A patent/IL42001A/en unknown
- 1973-06-01 BR BR411873A patent/BR7304118D0/en unknown
- 1973-06-07 ES ES415664A patent/ES415664A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BR7304118D0 (en) | 1974-12-31 |
| IL42001A0 (en) | 1973-06-29 |
| ES415664A1 (en) | 1976-02-01 |
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