Intelligent mixing head injection system

Abstract

The invention discloses an intelligent mixing head injection system, and relates to the field of refrigerator manufacturing. The intelligent mixing head injection system includes a control chip and aninjection action unit; the control chip includes a database module for inputting foaming process parameters of different types of door bodies, a modeling module for establishing a mathematical modelfrom injection parameters corresponding to different sizes of door bodies through a grey-box principle, and a calculation module for matching a corresponding mathematical model according to the user-inputted length, width and height of a door body to be foamed, calculating corresponding injection parameters and outputting parameter signals to the injection action unit. By inputting the length, width and height of the door body to be foamed and the flow rate of a mixing head, or inputting the length, width and height of the door body to be foamed and the moving speed of the mixing head, and through the inputted process parameter module in advance through matching, a calculation result is fed back to the injection action module, the injection action is automatically completed by the system,the degree of automation of the system is improved, materials are saved, and the production costs are reduced.

Description

technical field [0001] The invention belongs to the field of refrigerator manufacturing, in particular to an intelligent mixing head material injection system. Background technique [0002] With the development of home appliance technology, the volume of refrigerators has gradually expanded, and the thickness of the cabinet door has become thinner and thinner. Therefore, in the development process of the refrigerator door body manufacturing process, the door body injection mixing head has gradually changed from a fixed-point injection method (that is, direct injection at the center point) to a moving injection method (that is, the mixing head follows a preset stroke). While moving while injecting), however, as the size of the door body increases, the size of the foam layer increases further, and the thickness of the foam layer is further reduced, which means that it is more difficult to control the distribution of foam raw materials, and it is more difficult for the mixing h...

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