US 2026/0145394 A1 · SYSTEMS AND METHODS FOR CARRYING OUT A RESIN TRANSFER MOLDING PROCESS WITH MULTIPLE INJECTION TECHNOLOGY

Abstract

A system for carrying out a Resin Transfer Molding process including a molding tool having an upper mold half and a lower mold half which form a mold cavity configured for placement of a preform, a main control unit, more than one injection units configured to supply a resin mixture into the mold cavity, more than one injection points fluidly connecting the more than one injection units to the molding tool, one or more venting hoses configured to expel an excess of the resin mixture, more than one resin outlets fluidly connecting the one or more venting hoses to the molding tool and one or more flow direction sensors connected to the main control unit, wherein the main control unit is configured to monitor a behavior of the resin mixture from the more than one injection points to the mold cavity using the one or more flow direction sensors.

Claims31

Dependent claims

A system for carrying out an RTM (Resin Transfer Molding) process, the system comprising:

a molding tool comprising an upper mold half and a lower mold half, wherein the upper mold half and lower mold half form a mold cavity configured for placement of a preform;
a main control unit;
more than one injection units configured to supply a resin mixture into the mold cavity;
more than one injection points fluidly connecting the more than one injection units to the molding tool;
one or more venting hoses configured to expel an excess of the resin mixture within the mold cavity;
more than one resin outlets fluidly connecting the one or more venting hoses to the molding tool;
and
one or more flow direction sensors communicatively connected to the main control unit, wherein the main control unit is configured to:
monitor a flow behavior of the resin mixture from the more than one injection points to the mold cavity using the one or more flow direction sensors;
and
identify a direction of one or more resin flow fronts of the resin mixture based on the flow behavior.

8 more elements

A method for carrying out an RTM (Resin Transfer Molding) process, the method comprising:

receiving a molding tool comprising an upper mold half and a lower mold half, wherein the upper mold half and lower mold half form a mold cavity configured for placement of a preform;
flowing, using more than one injection units, a resin mixture into the mold cavity, wherein the more than one injection units are fluidly connected to the molding tool through more than one injection points;
sensing, using one or more flow direction sensors, flow data of the resin mixture;
receiving, by a main control unit communicatively connected to the one or more flow direction sensors, the flow data;
monitoring, by the main control unit, a flow behavior of the resin mixture from the more than one injection points to the mold cavity using the flow data;
and
identifying, by the main control unit, a direction of one or more resin flow fronts of the resin mixture based on the flow behavior.

4 more elements

Dependencies are inferred from the claim text.

Systems and methods for carrying out a resin transfer molding process with multiple injection technology

Life of this patent

Systems and methods for carrying out a resin transfer molding process with multiple injection technology

Life of this patent

Abstract

Claims31