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Innovative eco friendly traps for the control of
Pine Lepidoptera in urban and recreational places

TECHNOLOGICAL WATCH

Type of information: PATENTS

In this section, you can access to the latest technical information related to the PISA project topic.

METHOD AND SYSTEM FOR INJECTION MOLDING OF PLASTIC MATERIAL IN GRANULAR FORM

The invention relates to an injection molding method of plastic material in granular form, comprising the following operating steps: a) providing at least one injection molding press 200; b) providing a dehumidification system which in turn: - at least one hopper 10; 70, 80, 90, 100 for containing the granular material; - at least one generator 20; 120, 130, 140, 150 of dry air fluidically connected to the hopper; and - an electronic control unit 300, designed to regulate the flow rate Q of the dry air flow. The method further comprises the following steps: c) setting in the electronic control unit the type of plastic material contained; d) injection molding the plastic material; e) generating a dry air flow through the hopper; f) regulating the flow rate Q of the dry air in proportion to the flow rate m of plastic material processed by the press (200) during the molding step d). According to the invention, the method comprises the following further steps: g) setting in the electronic control unit the mass M of plastic material processed by the press in a single molding cycle or in a predefined number of molding cycles as a function of the mold used by the press itself; h) detecting the duration T of the molding cycle in progress of the press by setting the electronic control unit in communication with the press; i) calculating the flow rate m of plastic material processed by the press during the molding step d) using at least the following values: - duration T of the molding cycle in progress detected in step h); - mass M of plastic material processed by the press in a single molding cycle or a predefined number of molding cycles, set in step g). The invention also relates to an injection molding system of plastic material in granular form and a dehumidification system.


» Number: EP3437822A1 (A1)

» Publication Date: 19//2/06/0

» Applicant: MORETTO SPA?[IT]

» Inventor: MORETTO RENATO?[IT]

» More Information

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