초록 ▼

The invention relates to a method for manufacturing at least partly plastic vehicle parts in a mold with at least one mold cavity, comprising the steps of: at least partly closing the mold, wherein the at least one mold cavity is brought in a first position by means of at least one movable wall part

The invention relates to a method for manufacturing at least partly plastic vehicle parts in a mold with at least one mold cavity, comprising the steps of: at least partly closing the mold, wherein the at least one mold cavity is brought in a first position by means of at least one movable wall part of the at least one mold cavity; introducing plastic into the at least one mold cavity; upon complete closure of the mold and/or movement of the at least one movable wall part, bringing the at least one mold cavity in a second position, the at least one mold cavity in the second position having a different volume than in the first position; all this in such a manner that by bringing the at least one mold cavity from the first into the second position, the plastic fills the respective mold cavity completely.

대표청구항 ▼

What is claimed is: 1. A method for manufacturing at least partly plastic vehicle parts in a mold with at least one mold cavity, comprising the steps of: at least partly closing the mold, wherein the at least one mold cavity is brought in a first position by moving at least one wall part of the at

What is claimed is: 1. A method for manufacturing at least partly plastic vehicle parts in a mold with at least one mold cavity, comprising the steps of: at least partly closing the mold, wherein the at least one mold cavity is brought in a first position by moving at least one wall part of the at least one mold cavity; introducing plastic into the at least one mold cavity, the plastic being introduced in a molten condition; upon complete closure of the mold and/or movement of said at least one movable wall part, bringing the at least one mold cavity in a second position, the at least one mold cavity in said the having a smaller volume than in the first position; by bringing the at least one mold cavity from the first position to the second position, the plastic fills the respective mold cavity completely, the mold being provided with the at least one mold cavity with the at least one movable wall part, wherein operating means are provided for a controlled movement of said wall part between at least the first and the second position, wherein a displacement of said wall part is controlled such that during use adiabatic heat development occurs in plastic in the mold cavity through pressure change in and/or displacement of the plastic. 2. A method according to claim 1, wherein at least one insert, is laid in or is formed in the at least one mold cavity, which insert is connected with the plastic in the mold. 3. A method according to claim 2, wherein said at least one insert is a covering element, wherein said covering element is at least partly manufactured from textile. 4. A method according to claim 2, wherein said at least one insert is a covering element, wherein said covering element is at least partly manufactured from plastic. 5. A method according to claim 4, wherein said covering element plastic and said introduced plastic being at least one of connected through fusion and chemical bonding. 6. A method according to claim 1, wherein said wall part is moved by at least the plastic which is introduced into the respective mold cavity. 7. A method for manufacturing products in a mold according to claim 1, wherein after introduction of plastic into the at least one mold cavity, the at least one mold cavity, is enlarged in volume, after which a second plastic is introduced into the thus obtained space in the mold cavity. 8. A method according to claim 7, wherein the at least one mold cavity in the first position has a first volume, in the second position a second volume and wherein the volume of said at least one mold cavity, after introduction of said plastic, is enlarged to a third volume, greater than the first and second volume, after which the volume of said at least one mold cavity, after introduction of the second plastic, is reduced to substantially said second volume. 9. A method according to claim 1, wherein vehicle parts are manufactured selected from the group of interior covering elements, external covering elements, guarding parts, parts of seats and seat benches. 10. A method according to claim 1, wherein the plastic is introduced via at least one injection point into the at least one mold cavity and wherein in at least the position in which the plastic is introduced into the at least one mold cavity, flow paths are provided which match a melt-flow index of the respective plastic, at least adjacent the at least one injection point. 11. A method according to claim 1, wherein a speed at which said at least one movable wall part is moved is higher than the speed at which the mold is closed and/or opened. 12. A method according to claim 1, wherein a closing pressure with which the mold is kept closed during movement of the at least one movable wall part is less than an injection pressure for a comparable product in conventional injection molding. 13. A method according to claim 2, wherein said at least one insert is a covering element. 14. A method according to claim 13, wherein said covering element is a label. 15. A method according to claim 4, wherein said plastic is a thermoplastic. 16. A method according to claim 9, wherein the interior covering elements include at least one of trim elements. 17. A method according to claim 16, wherein the trim elements include at least one of inner coverings, dashboards, roof lining and door covering elements. 18. A method according to claim 9, wherein the external covering elements include at least one of plating parts, bumpers and engine covering.