In-mold painting method and device thereof
A coating method and mold core technology, which can be applied to devices for coating liquid on surfaces, coatings, pre-treatment surfaces, etc., can solve problems such as uneven temperature control, thermal trapping of liquid paint, uneven curing, etc.
Inactive Publication Date: 2010-10-13
金宇轩
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Problems solved by technology
Secondly, in this known in-mold coating method, when heating with electric heating wire or other heating methods, the liquid paint must be trapped by heat through the steel mold core in a heat conduction manner, so as to form a coating film combined with a On the surface of the injection molded product; therefore, it is prone to the uneven curing problem of uneven temperature control, which is the second defect
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[0021] like figure 1 As shown, it is a schematic longitudinal sectional view of an injection molding mold embodiment of an in-mold coating device of the present invention. The basic structure of the injection molding die of the present invention is the same as the conventional known injection molding die, consisting of: a fixed side template 10, a movable side template 14, a fixed side mold kernel 1, a movable side mold kernel 15, a mold kernel fixed plate 9a, 9b, fixed side fixed plate 12, movable side fixed plate 20, spacer plates 16, 19 and upper and lower ejector plates 17, 18 and other components: wherein, although the fixed side mold core 1 is also the same as the known technology, the same Therefore, the mold core fixing plates 9a, 9b are locked and fixed in the mold cavity of the fixed side formwork 10 by a plurality of screws 11, but after the bottom of the mold core is first attached to the fixing pad and provided with a backing plate 6, the fixing on the fixed side ...
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The invention relates to an in-mould coating method and a device thereof. The core of a shaping die emitted out by the in-mould coating device is a transparent material and the outer surface of a shaping product of the core is coated with a layer of reflective material layer; a beam generator, a beam sensor, a vidicon,etc. are arranged in the core; the coating method is that after a semi-finishedproduct shaped by being emitted or by other technical methods is placed into a mould and then matched moulds are closed, liquid paint vehicle or other liquid materials coated are injected in a clearance which is designed and generated between the transparent core and the semi-finished product, and the vidicon is used for monitoring filling situation; after the filing is finished, the beam generator arranged in the transparent core is started and the beam sensor is used for monitoring the beam irradiation amount of the liquid paint vehicle or other liquid materials coated which are injected into the mould, so that after the chemical change solidification is generated, a film coated is formed, and the film coated is coated and bonded on the surface of the semi-finished product, namely leading the semi-finished product shaped by being emitted or by other technical methods to obtain the needed appearance or function of a finished product.
Description
technical field [0001] The present invention relates to an in-mold coating method and its device, especially to provide a method of injecting an appropriate amount of liquid paint or other liquid coating materials into the mold and irradiating it with an appropriate amount of light to cure it. The in-mold coating method and device of the outer surface of the semi-finished product formed by injection molding or other methods in the mold, coated with a layer of coating film. Background technique [0002] Press, the currently known in-mold coating method "such as China Taiwan Public Gazette No. 20053500 (Application No. 093135078)" is all heated by electric heating wire or other heating methods, so that the liquid paint is cured by heat, so that it can be used in one The surface coating of the injection molded semi-finished product is combined with a coating film. Therefore, it is necessary to develop a "thermosetting" liquid paint in order to combine a layer of coating film o...
Claims
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IPC IPC(8): B05D1/00B05D3/06B05C3/109
Inventor 金宇轩
Owner 金宇轩