Plastic control mechanism for multi-component plastic injection molding and control mode of plastic control mechanism
A control mechanism and multi-component technology, which is applied in the field of plastic injection molding machines, can solve the problems that cannot be realized at the same time, reduce the use efficiency of plastic injection molding machines, etc., and achieve reasonable overall design, adjustable back pressure, and controllable operation strong effect
Active Publication Date: 2013-06-26
富强鑫(宁波)机器制造有限公司
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Problems solved by technology
The two control modes cannot be realized at the same time, which effectively reduces the efficiency of the plastic injection molding machine
Method used
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 As shown, the icon numbers are explained as follows: motor pump group 1, first group control system 2, first proportional pressure flow valve 21, first pre-plastic reversing valve 22, first injection reversing valve 23, first melt adhesive back Pressure valve 24, first back pressure control valve 25, second group control system 3, second proportional pressure flow valve 31, second pre-plastic reversing valve 32, second injection reversing valve 33, second melt adhesive back pressure Valve 34, second back pressure control valve 35, first plastic control mechanism A, second plastic control mechanism B, motor M, first oil pump Q1, second oil pump Q2.
[0033] In an embodiment of the present invention, the plastic control mechanism and its control mode for multi-component plastic injection molding include a motor pump unit...
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The invention discloses a plastic control mechanism for multi-component plastic injection molding and a control mode of the plastic control mechanism. The plastic control mechanism comprises a motor pump set, a first plastic control mechanism and a second plastic control mechanism, wherein the first plastic control mechanism and the second plastic control mechanism are independently provided witha first group of control systems and a second group of control systems respectively; by arranging the two groups of control systems having independent control functions, the actual operation controllability is high, namely various combinations of different control modes can be realized; a backpressure valve and an electronic reversing valve which are combined with each other are arranged, and thefilling degree of melted plastic to a melting material during melting of the plastic in a material barrel can be counted accurately; each control system is provided with a pressure and flow proportional valve; high-efficiency running can be realized according to different characteristics of original plastic; two independent oil pumps with the same flow are provided for controlling two control systems respectively, so that a synchronous speed during synchronous running is realized; and three oil openings, namely a unidirectional opening, an overflowing opening and a main oil opening, are formed on the backpressure valve, so that the backpressure adjustability during preplastification and high speed and high efficiency during injection molding are realized.
Description
technical field [0001] The invention relates to the technical field of plastic injection molding machines, in particular to a plastic control mechanism for multi-component plastic injection molding and its control mode. Background technique [0002] In the structure of the plastic injection molding machine, the plastic injection mechanism is an indispensable part. The general plastic injection mechanism can be divided into single-color molding and multi-color molding, and multi-color molding can be divided into two types: clear multi-color molding and interlayer mixed-color molding. Large category, clear multi-color molding means that the plastic raw materials are melted by each independent material tube group and injected into the cavity of the mold respectively, mixed-color molding means that a variety of different plastic raw materials are injected simultaneously through a common nozzle To the cavity of the mold, and sandwich molding refers to injecting a variety of diffe...
Claims
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IPC IPC(8): B29C45/76
Inventor 王伯埙
Owner 富强鑫(宁波)机器制造有限公司