IMT in-mold transfer printing device and method

Abstract

The invention discloses an IMT in-mold transfer printing device. A bearing base and an injection molding framework base arranged on the upper surface of the bearing base are included; a base materialfeeding mechanism is arranged at the upper end of the injection molding framework base; a waste film winding mechanism for reeling base material waste subjected to injection molding cutting is arranged in the bearing base, and a material receiving tensioning mechanism is further arranged above the waste film winding mechanism; and the upper surface and the lower surface of the injection molding framework base are each provided with an injection molding base material compensating mechanism for compensating for the mold closing extruding length of a base material. The invention further relates to a transfer printing method. A base material passes through the injection molding framework base in the vertical direction; the injection molding framework base performs mold closing, and the injection molding base material compensating mechanisms provide a pressed movement amount of the base material; the injection molding framework base performs mold opening, and the injection molding base material compensating mechanisms automatically return. Due to the scheme, the base material movement amount can be compensated for in the injection molding extruding process, the transfer printing qualityproblem caused by the fact that the surface tension of the base material at the injection molding position is too large is solved, the production quality of in-mold transfer printing is improved, using is convenient and fast, the control principle is simple, and the production quality is improved.

Description

Technical field [0001] The invention relates to the field of IMT, in particular to an IMT in-mold pad printing device and method. Background technique [0002] IMT is a new process integrated and extended from in-mold insert injection technology and in-mold transfer technology. The IMT process brings together the advantages of a variety of decoration processes, adopts the advantages of IML process in FILM production, and absorbs IMR process injection molding. The advantages of in-mold transfer, combined with the effects of digital printing and offset printing and traditional screen printing process, make the IMT process applicable and widely used, make up for the limitations of traditional exterior decoration technology, and meet the high level of product appearance decoration. Level innovation requirements. The 3D stereo effect and product stretching meet the in-mold decoration process of more products. [0003] The emergence of IMT process will replace the current industry in t...

AI Technical Summary

Problems solved by technology

[0006] (1) When injecting the base material, since the base material conveying device stops working during injection molding, and there is no base material compensation mechanism, if the injection molding depth is relatively large, the extrusion force of the injection mold on the base material is too large , may cause the substrate to stretch thinner or even break, affecting product quality;

[0007] (2) During the rotation of the substrate reel, the traditional tensioning mechanism cannot self-adjust according to the thickness of the substrate on the reel, which affects the tightness of the substrate during injection molding, and there is a risk of substrate wrinkles during injection molding. affect yield quality;

[0008] (3) When the waste film after injection molding is rewound and recycled, due to the continuous increase in the quality of the waste film reel, there is no reel expansion and fixing mechanism on the reel, which may cause the reel to be detached from the driving mechanism and run idly, affecting the normal conveying capacity of the substrate

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