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A shell and base layer technology, applied in decorative arts, processes for producing decorative surface effects, special decorative structures, etc., can solve problems such as increased cost, unsightly appearance, complicated processing steps, etc., and achieve improved quality and increased aesthetics. Effect
Inactive Publication Date: 2010-10-13
KANGZHUN ELECTRONICS TECH KUNSHAN +1
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Since the film 7 in the injection mold 1 is not positioned, the flow of the glue and the resulting injection pressure will easily cause the film 7 to shift or wrinkle when the film is injected. 7 Therefore, it cannot be completely wrapped on the plastic part, and because the film 7 needs to be cut into an appropriate shape or size, it must have a certain thickness to maintain the shape after cutting, which will lead to an increase in cost
refer to Figure 12 As shown, it shows a schematic cross-sectional view of the product made by the US Patent No. 5800759, wherein the edge 710 of the plastic part 700 is not completely covered by the decorative film 800 and is exposed. The processing steps of this molding method are complicated and the finished product The quality is unstable and unsightly
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no. 1 approach
[0029] See Figure 5 , The first embodiment of the in-mold decoration molding method applied to the shell of the present invention includes the following steps:
[0030] Step S102, providing an attached film 100;
[0031] Step S104, use the film feeding device 15 to pull the attached film 100 and send the attached film 100 along the parting surface of the female mold 25 between the female mold 25 and the male mold 30, and press it into a division of the female mold 25. Mold surface. Make the adhesive film 100 adhere to the inner wall of the cavity 22 of the master mold 25, such as image 3 Shown. In a preferred embodiment, the adhesive film 100 is adsorbed to the cavity 22 of the master mold 25 by vacuuming the cavity 22 of the master mold 25.
[0032] In step S106, the first mold clamping is performed so that there is no contact between the parting surface of the male mold 30 and the parting surface of the female mold 25.
[0033] Step S108, injection is performed, from the side of...
no. 2 approach
[0038] See Image 6 The second embodiment of the in-mold decoration molding method of the present invention includes the following steps:
[0039] Step S202, providing a continuously extending attached film 100;
[0040] Step S204, use the film feeding device 15 to pull the attached film 100 and send the selected section of the attached film 100 along the parting surface of the female mold 25 between the female mold 25 and the male mold 30 and press it into the female mold. The parting surface of mold 25. Make the adhesive film 100 adhere to the inner wall of the cavity 22 of the master mold 25, such as image 3 Shown. The mold is provided with a cutting part 26, 26'.
[0041] Step S206, perform mold clamping.
[0042] Step S208, injection is performed, and the molded product is formed on the selected area of the attached film 100, as Figure 4 Shown.
[0043] Step S210, using the cutting parts 26, 26' of the mold to cut the selected area of the adhesive film 100 adhered to the s...
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Abstract
The invention relates to a case, comprising a base material provided with a first circumferential end face and an adhesive film adhered on the base material; wherein the adhesive film is provided with a second circumferential end face and at least comprises a matrix layer and an adhesive layer, the adhesive layer is adhered on the base material, the matrix layer is arranged at the other side of the adhesive layer corresponding to the base material, and the second circumferential end face of the adhesive film is roughly aligned with the first circumferential end face of the base material.
Description
Technical field [0001] The invention relates to a shell, in particular to a shell made of a mold for in-mold decoration molding. Background technique [0002] The exterior surface coating methods of general objects, automobiles, home appliances, consumer electronic products, etc. are divided into liquid coating, powdercoating, electrostatic coating and electrophoretic coating. The surface processing by coating method cannot handle the pattern. And when coating a large substrate with a flat surface and a side edge, since the side size of the substrate is very different from the flat size, when the painting is carried out to coat the side of the substrate, a considerable amount of spray paint will Will accumulate on the side. Through the evolution of time, an improved spin coater is applied to the coating of substrates. This spin coater uses centrifugal force to drop the liquid coating agent on the middle of the horizontal substrate surface to be coated, and then rotates the hori...
Claims
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Application Information
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