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In-mold decorating apparatus and method for manufacturing in-mold decorated molded product

A technology for forming and decorating sheets, which is applied in the field of forming and decorating devices and the manufacturing fields of forming and decorating formed products, and can solve the problems of the decorative sheet 121 being broken, difficult to continuously form, and broken.

Active Publication Date: 2010-02-24
NISSHA PRINTING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] As described above, when there is a deviation in the distance from the decorative sheet 121 to the parting surface 127, when the decorative sheet 121 is pressed by a film clip (not shown) or when the mold is closed, the force acting on the decorative sheet 121 uneven
Therefore, the decorative sheet 121 may be broken and it is difficult to form continuously.
In addition, wrinkles or cracks in the pattern layer may occur due to cracks in the decorative sheet 121, resulting in poor appearance of the decorated resin molded product.
Also, even if the decorative sheet 121 is not broken when the decorative sheet 121 is pressed by a film clamp or when the mold is closed, the decorative sheet 121 may be broken when the mold is closed for injection molding.
That is, due to the deviation, a part of the decorative sheet 121 is not in close contact with the cavity 123 and floats from the cavity 123. If the molten resin is injected into the cavity space in the mold in this state, the decorative sheet 121 may Crack due to heat and pressure of the molten resin
In this case, wrinkles or cracks in the pattern layer may also occur, resulting in poor appearance of the decorated resin molded product.

Method used

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  • In-mold decorating apparatus and method for manufacturing in-mold decorated molded product

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Experimental program
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no. 1 Embodiment approach 》

[0069] use Figure 1 ~ Figure 4 A simultaneous molding and decorating device according to the first embodiment of the present invention will be described. figure 1 It is a side view schematically showing the structure of the simultaneous molding and decorating apparatus of this 1st Embodiment. figure 2 It is a perspective view which shows the state which attached the decorative sheet supply apparatus to the movable platen in this 1st Embodiment. image 3 It is cut on a plane perpendicular to the moving direction of the decorative sheet figure 2 cutaway view of the composition. Figure 4 is shown in figure 1 A cross-sectional view of the structure of a transfer sheet, which is an example of a decorative sheet used in the forming and decorating device of .

[0070] figure 1 The molding and decorating device of the first embodiment shown includes a mold 81 , an injection molding machine 82 , and a decorative sheet supply device 83 .

[0071] The mold 81 has a movable m...

no. 2 Embodiment approach 》

[0093] use Figure 5 A simultaneous molding and decorating device according to a second embodiment of the present invention will be described. Figure 5 It is a perspective view which shows the state which attached the decorative sheet supply apparatus to the movable platen in 2nd Embodiment of this invention. The molding and decorating device of the second embodiment is different from the molding and decorating device of the above-mentioned first embodiment in that instead of fixing the fixing parts 5 and 15 to the frames 4 and 14, the fixing parts 5 and 15 and the frames Turntables 6, 16 are arranged between 4, 14, and frames 4, 14 and turntables 6, 16 are fixed by fixing screws 7, 17, which are an example of a fixing unit. The other aspects are the same, so repeated explanations will be omitted below, and differences will be mainly described.

[0094] In this second embodiment, if Figure 5 As shown, the fixed parts 5, 15 are fixed on the turntables 6, 16. The turntable...

no. 3 Embodiment approach 》

[0097] A simultaneous molding and decorating device according to a third embodiment of the present invention will be described with reference to FIG. 6 . 6 is a perspective view illustrating a state in which a decorative sheet supply device according to a third embodiment of the present invention is attached to a movable platen. The molding and decorating device of the third embodiment is different from the molding and decorating device of the above-mentioned first embodiment in that an insert sheet is used as the decorative sheet 21, and a clamping device 301 is provided instead of the decorative sheet winding device 11. and drive device 302. The other aspects are the same, so repeated explanations will be omitted below, and differences will be mainly described.

[0098] The difference between the insert sheet and the transfer sheet 101 is that it does not have the release layer 103 . That is, the insert sheet is a sheet that can be used without peeling off the base sheet 1...

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Abstract

Provided is a simultaneous molding-decorating apparatus, in which the axis of rotation of a decorative sheet let-off roll (2) of a decorative sheet feeding device (83) and the axis of rotation of a guide roller (3) are made parallel to a parking face (27) to have a decorative sheet (21) arranged thereon, so that the appearance defect of a resin molding due to the break and wrinkle of the decorative sheet (21) and the crack of a pattern layer may not be caused in the state where the parking face (27) is inclined with respect to a platen face (24a).

Description

technical field [0001] The present invention relates to a molding simultaneous decoration device suitable for decorating the surface of a resin molded product using a decorative sheet, a device installation jig, a mold, an injection molding machine, and a decorative sheet supply device included in the molding simultaneous decoration device, and A method of manufacturing a molded article while molding it. Background technique [0002] Conventionally, as a method of decorating the surface of a resin molded product, a molding simultaneous decoration method using a decorative sheet such as a transfer material is known. Here, the decorative sheet is obtained by providing a transfer layer having a release layer, a pattern layer, an adhesive layer, and the like on a base sheet. [0003] The molding simultaneous decoration method is a technique in which a decorative sheet is sandwiched into a mold while being arranged on a cavity of a mold, a molding resin is injected into the mold...

Claims

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Application Information

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IPC IPC(8): B29C45/17B29C45/16B29C45/14
Inventor 山本辉真山崎成一神户俊和畑宰浅井健太郎椙森敏克
Owner NISSHA PRINTING COMPANY
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