Method of and device for producing endless strips
AssigneeSaarGummi Technologies S.a.r.l.
InventorsFrank Berkemeier, Jorg Leiffels
Life of this patent
Estimating the term…
Abstract
The invention relates to a method and to a device for producing endless strands, particularly plastic strands having structure in the longitudinal axis. According to the invention, form elements (14, 15) bounding a form cavity (4) are brought together and aligned with each other in rows for making a form cavity (4), the form cavity (4) is moved in the longitudinal axis of the rows and casting material is brought into the form cavity (4) at a gate location running against the direction of motion through a side opening (5) of the form cavity (4), and the form cavity is opened continuously at a distance from the gate location while moving the form elements apart, in order to demold an endless strand solidified in the form cavity (4).
Claims28
Method of producing endless strips, particularly strips of plastics material structured in longitudinal direction, wherein for formation of a mould cavity (4) mould elements (14, 15) bounding the mould cavity are brought together and arranged in a row, that the mould cavity (4) is moved in the longitudinal of the row and casting material is introduced into the mould cavity (4) through a lateral opening (5) of the mould cavity (4) at a gate point progressing against the direction of movement and that the mould cavity is opened continuously at a spacing from the gate point while moving the mould elements (14, 15) apart so as to remove from the mould an endless strip solidified in the mould cavity (4) wherein the mould cavity (4) is opened when the moving mould elements (14, 15) move apart from one another, and wherein the moving mould elements (14, 15) and inlet opening (5) enclose the mould cavity (4) to form a U-shaped cross-section.
Device for producing endless strips (10), particularly strips of plastics material structured in a longitudinal direction, characterised by a mould cavity (4), which comprises moving mould elements (14, 15) arranged in a row and movable in the longitudinal direction of the row, equipment (21, 22, 25) for introducing moulding material into the mould cavity (4) through a lateral inlet opening (5) at a gate point progressing against a direction of movement and equipment for continuous opening of the mould cavity (4) at a spacing from the gate point in order to remove from the mould cavity (4) an endless strip (10) solidified in the mould cavity (4), wherein the mould cavity (4) is opened when the moving mould elements (14, 15) move apart from one another, and wherein the moving mould elements (14, 15) and inlet opening (5) enclose the mould cavity (4) to form a U-shaped cross-section.
Dependencies are inferred from the claim text.