Mould part and moulding station
AssigneePulpex Limited
InventorAdam Richard TURNER
Life of this patent
Estimating the term…
Abstract
Disclosed is a mould part for use in moulding a hollow moulded fibre product, the mould part co-operable in use with a further mould part to together define a cavity in which the hollow moulded fibre product is moulded, the mould part having a base portion corresponding to a part of a base of the hollow moulded fibre product to be moulded by the mould part in use, wherein the base portion has a positive draft angle. Also disclosed is a moulding station and a moulding system.
Claims18
A mould part for use in moulding a hollow moulded fibre product, the mould part being co-operable in use with a further mould part to together define a cavity in which the hollow moulded fibre product is moulded, the mould part having a base portion corresponding to a part of a base of the hollow moulded fibre product to be moulded by the mould part in use, wherein the base portion has a positive draft angle.
A method of providing a hollow moulded fibre product using a mould comprising a first mould part and a second mould part, the first and second mould parts being co-operable with each other, in use of the mould, to together define a mould cavity and each having a base portion with a positive draft angle, the method comprising:
- supplying a fibre slurry to the mould cavity;
- and
- moulding, using the mould, the fibre slurry in the mould cavity to provide the hollow moulded fibre product, the hollow moulded fibre product having a convex base as a result of the draft angles of the base portions of the first and second mould parts.
A receptacle produced by the process comprising:
- (i) providing a hollow moulded fibre product using a mould comprising a first mould part and a second mould part, the first and second mould parts being co-operable with each other, in use of the mould, to together define a mould cavity and each having a base portion with a positive draft angle;
- (ii) supplying a fibre slurry to the mould cavity;
- (iii) moulding, using the mould, the fibre slurry in the mould cavity to provide the hollow moulded fibre product, the hollow moulded fibre product having a convex base as a result of the draft angles of the base portions of the first and second mould parts;
- (iv) demoulding the hollow moulded fibre product from the mould;
- and
- subsequent to (i)-(iv), transferring the hollow moulded fibre product to a thermoforming mould, the thermoforming mould comprising a third mould part and a fourth mould part co-operable, in use of the thermoforming mould, to together define a thermoforming cavity, each of the third and fourth mould parts comprising a respective base portion having a draft angle that is less than the positive draft angle of the base portion of the first mould part and the positive draft angle of the base portion of the second mould part;
- closing the third and fourth mould parts when the hollow moulded fibre product is in the thermoforming cavity;
- and
- thermoforming, using the thermoforming mould, the hollow moulded fibre product in the thermoforming cavity to provide the thermoformed hollow moulded fibre product.
Dependencies are inferred from the claim text.