System and Method for Manufacturing Fittings and Connections for Biaxially-Oriented Plastic Pipes
AssigneeMolecor Tecnologia S.L.
InventorIgancio MUNOZ DE JUAN
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Abstract
The present invention discloses a system and a method for manufacturing fittings and connections for biaxially-oriented plastic tubes in an integral way from straight preformed tubes, with the possibility of adjusting and distributing the thicknesses as well as adjusting the specific stretching in the different areas of the fittings, allowing them to be reinforced or optimized during the method itself and without causing an increase in the production time or an increase in the raw material used, such that it allows for the manufacture of fittings of different geometric shapes (curves, tapers, couplers, branches, etc.)
Claims12
A system for manufacturing fittings and connections for biaxially-oriented plastic tubes from a straight preform tube (100) of a non-oriented polymer tube which comprises a first end and a second end, characterized in that the system comprises:
- heating means (1), configured to control the temperature of the preform tube (100);
- a tempered climatic chamber (2) configured to maintain the temperature of the preform tube (100) at a first predetermined temperature and to carry out operations of deforming the tube (100);
- a first gripping head (9) and a second gripping head (9), wherein the first gripping head (9) is configured to grip the first end of the preform tube (100) and the second gripping head (9) is configured to grip the second end of the preform tube (100);
- handling means (4) configured to support the first gripping head (9) and the second gripping head (9),
- a base plate (5) that supports two mobile pieces configured to move about;
- a mold (6) that comprises at least two parts, wherein each one of the parts of the mold (6) is arranged on a mobile piece of the base plate (5), wherein the mold (6) is configured to orient a deformed tube or the preform tube (100) when the at least two parts of the mold (6) are arranged in contact.
The system according to any of the preceding claims, characterized in that at least the first or the second gripping head (9) comprises insertion/extraction means (8) of a fluid in the inside of the deformed tube or the preform tube (100).
The system according to any of the preceding claims, characterized in that the mold (6) further comprises gripping means (11) arranged at ends of the mold, coinciding with the first end and the second end of the preform tube when the at least two parts of the mold are arranged in contact, wherein the gripping means (11) are configured to clamp the deformed tube or the preform tube (100) when the at least two parts of the mold (6) are arranged in contact.
The system according to any of the preceding claims, characterized in that it further comprises means for cutting and/or finishing (7) the formed fittings or connections configured to cut the ends of the formed fitting or connection.
The system according to any of the preceding claims, characterized in that it further comprises a distribution table wherein the preform straight tube (100) of the non-oriented polymer tubing is arranged and is configured to cut the preform tube (100) into pieces of varying lengths.
A method for manufacturing fittings and connections for biaxially-oriented plastic tubes from a straight preform tube (100) of a non-oriented polymer tube which comprises a first end and a second end, wherein the system comprises:
- a heating stage, wherein a temperature control of the preform (100) tube is carried out;
- a tempering stage, wherein a temperature control of the preform tube (100) is maintained at a first predetermined temperature;
- a gripping stage wherein the gripping of the first end of the preform tube (100) and the second end of the preform tube (100) is carried out,
- a molding stage by means of a mold (6) that comprises at least two parts, wherein in the molding stage the orientation of a deformed tube or of the preform tube (100) is carried out when the at least two parts of the mold (6) are arranged in contact.
Dependencies are inferred from the claim text.