Method for forming foam-forming-body with surface layer and device thereof
A technology of foamed moldings and skins, which is applied in the field of forming foamed moldings with skins and their devices, and can solve the problems of inclination or deviation of the suture position of the skin material, poor positioning accuracy of the skin material, and poor yield of finished products, etc. problem, achieve the effect of preventing deviation and introducing equalization
Inactive Publication Date: 2009-07-29
HOWA PLASTICS CO LTD
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Problems solved by technology
[0005] In addition, in the method of Patent Document 1, when forming a foamed molded body with a skin, the positioning of the skin material is performed visually by the operator so that it is aligned with the installation position marking line provided in the lower mold. Relatively aligned, so there is such a problem that the positioning accuracy of the skin material is poor, the suture position of the skin material will be inclined or deviated and become a defective product, and the qualified rate of the finished product is poor
Method used
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[0022] Refer below Figure 1 to Figure 11 The best embodiment of the present invention will be described in detail. Such as figure 1 As shown, the apparatus of the present invention is composed of a lower mold 1 for sucking the skin material 2 and sealing it, an intermediate mold 3 for clamping the periphery of the skin material 2, and an upper mold 55 for temporarily holding the core material 4.
[0023] Such as image 3 and Figure 11 As shown, the peripheral edge of the skin material 2 becomes the bead 2a of the core material 4, and the bead 2a is clamped by fitting the lower mold 1 and the middle mold 3. The bead 2a is cut to a size that does not require trimming when joining with the core material 4 . As the material of the skin material 2, polyethylene resin or other plastic-based sheets and fabrics are used, but when fabrics are used, a film is laminated on the inner surface in advance in order to block air permeability.
[0024] Such as image 3 As shown, the cur...
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The invention provides a method and device for forming a foamed molded body with a skin, which can reliably clamp without shifting the skin material, and can improve the positioning accuracy when placing the skin material on the lower mold. At least one end edge of the skin material 2 is pre-pierced with a positioning hole 2b, and a plurality of positioning pins 7 protruding from the periphery of the mold opening of the lower mold 1 are inserted into these positioning holes 2b, and the skin material 2 is placed on the lower mold 1, and then clamped by the middle mold 3. Then, the skin material 2 is sucked to make it close to the inner surface of the mold cavity of the lower mold 1, the foamed resin material is supplied to the upper part, the upper mold 5 is inserted into the inner side of the middle mold 3, the periphery of the skin material 2 is sealed, and then the foam The foamed resin material can be foamed to obtain a foamed molded body with a skin.
Description
technical field [0001] The present invention relates to a method and an apparatus for molding a skinned foam molded body such as an automobile seat armrest and an automobile seat cushion. Background technique [0002] As a method for forming the above-mentioned foamed molded body with a skin, as shown in Patent Document 1 (Japanese Patent No. 2995019 ), a method is known in which a skin material is placed on a bottom surface having a plurality of suction holes. On the mold, the periphery of the skin material is clamped by the middle mold placed on the lower mold, the skin material is attracted to make it close to the inner surface of the mold cavity of the lower mold, the foamed resin material is supplied to the upper part, and the upper mold is inserted into the middle mold. On the inner side, after sealing the periphery of the skin material, the foamed resin material is foamed. [0003] In the molding method described above, when the skin material is sucked into close con...
Claims
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IPC IPC(8): B29C44/12B29C44/34B29C44/58
Inventor 大池秀和
Owner HOWA PLASTICS CO LTD