Device for controlling pitch and tension of a wire deposited onto mandrel in composite-hose manufacturing
AssigneeGasso Equipments, S.A.
InventorsIgnasi GASSÓ ESPINA, Antonio FLOTATS MOLINAS
Life of this patent
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Abstract
A device for winding a wire around a mandrel in the manufacture of composite hoses with a controlling means for pitch and tension of the winded wire may include a carriage unit that moves laterally and coaxially in unison with the mandrel. The pitch of the wire is controlled by the carriage unit, two set of coaxial guidance rollers, first set of wire guidance groove rollers, and a carriage closed loop assisted mechanism. The tension is controlled by a pre-determined pressure that pushes displaceable rollers against two-fixed rollers passing the wire between them and bending the wire in a predetermined pull tension.
Claims15
A device for helical winding of a wire around a mandrel in the manufacture of composite hoses with a controlling means for pitch of the helical winded wire, as the wire is helical winded onto the mandrel or on the external layer of the composite hose, wherein the device comprises:
- a carriage unit configured to move alongside the mandrel mounted on a longitudinal guide as the mandrel-rotates about its axis,
- the carriage unit comprising two sets of coaxial guidance rollers that move laterally, and vertical in unison radially to the mandrel and swing coaxially in unison with the mandrel, and a first set of wire guidance groove rollers that guide and tension the wire,
- wherein the carriage unit comprises, a means for controlling the pitch of the wire as the wire is helically winded onto the mandrel or on an external layer of the composite hose, wherein the means for controlling the pitch of the wire comprises a carriage closed loop assisted mechanism that control the displacement alongside the mandrel, the two sets of coaxial guidance rollers and the first set of wire guidance groove rollers, that move on a swing in unison and are pushed by a first pneumatic cylinder;
- and
- a control unit configured to regulate the rotation of the carriage closed loop assisted mechanism to maintain the pitch of the helical wounded wire at a constant predetermined value, wherein the control unit regulates the rotation of the carriage closed loop assisted mechanism based on positional data of the carriage unit and rotation speed of the mandrel.
A device for winding a wire around a mandrel in the manufacture of composite hoses with a controlling means for tension of the winded wire, as the wire is helical winded onto the mandrel or on the external layer of the composite hose wherein the device comprising:
- a carriage unit configured to move alongside the mandrel mounted on a longitudinal guide as the mandrel rotates about its axis,
- the carriage unit comprising two sets of coaxial guidance rollers that move laterally, and vertical in unison radially to the mandrel and swing coaxially in unison with the mandrel, and a first set of wire guidance groove rollers that guide the wire, wherein the two sets of coaxial guidance rollers and the first set of wire guidance groove rollers are pushed by a first pneumatic cylinder;
- wherein the carriage unit comprises, a means for controlling the tension of the wire as the wire is winded onto the mandrel or on the external layer of the composite hose, wherein the means for controlling the tension of the wire comprises a second set wire guidance groove rollers arranged in zig-zag where the wire pass in between, one or more of them displaceable exert a force against the wire pushed by one or more second pneumatic cylinder simultaneously pushing the wire against the other fixed wire guidance groove rollers bending the wire in a predetermined pull tension.
Dependencies are inferred from the claim text.