Method and device for making automotive interior components of plastic

0001The invention relates to a method according to the preamble of claim 1 and an apparatus for carrying out a such a method.

0002More complex and larger automotive interior components such as instrument panels or center consoles have a pre-plastic sprayed on carrier or depositors, with openings equipped that closed during the back-foaming and then open and edit again Need to become. In the known methods this means Functioning of increased material and labor.

0003It has also been proposed that the carrier on the Underside, ie on the foaming takes place on the page, seal with a so-called Surlyn film. These Film is particularly expensive and their use creates uncertainty in the implementation of the process since it liability errors can lead.

0004The invention is based on the object, a method of the aforementioned type to create the reliable, yet very economically.

0005This process is the defining clause of claim 1 basically solved.

0006According to the invention a cover on the back of the Carrier, that is applied to the side, the rear-foaming the is remote. The film must be as strong and appropriate have properties that it in the suction of the upper mold transmits the corresponding suction force, so that keeping the carrier with the cover in the top mold becomes. Then, when the foaming has taken place and the molded part was removed from the mold, the cover film is again away. The openings and the edges are then without Difficulty accessible.

0007Advantageously, the process is carried out, as stated in claim 2nd Through the projection of the cover film is a penetration of plastic foam in the edge rich prevented.

0008In this way it is also possible (see claim 3), the inflatable to arrange seals in the upper mold. By Cover to protect them. The use of release agents can be omitted.

0009As cover has in tests such proven, as it comes in the food industry.

0010In the following the invention with reference to the drawing explained in more detail.

0011It shows:<dl tsize="6"><dt>Fig. 1</dt><dd>a recording with vacuum chamber for the support or depositors;</dd><dt>FIG. 2</dt><dd>one corresponding to FIG. 1 view, but with DOMICILED and molded by applying a vacuum and fixed cover;</dd><dt>Fig. 3</dt><dd>a schematic section through the top of the form Device with suctioned carrier with cover; </dd><dt>Fig. 4</dt><dd>corresponding one of the Fig. 3 schematically Section, but with the upper mold placed on the Under the form after entering the foam material, ie in the closed position of the mold;</dd><dt>Fig. 5</dt><dd>a section through a form directly from the removed molding; and</dd><dt>Fig. 6</dt><dd>a in FIG. 5 corresponding section but at Removing the cover.</dd></dl>

0012In Fig. 1 a holder 1 is shown with a vacuum chamber, is placed on the carrier or a depositor. 3 By applying vacuum through corresponding openings a cover sheet 4 molded and drawn, as in FIG. 2 Instructions.

0013After fixing of the cover sheet in this manner is the Carrier 3 with the cover 4 in the upper mold 6 (Fig. 3) inlaid with vacuum chamber 7 and by applying a vacuum kept. Inflatable seals in the upper mold are with 8 designated.

0014referred to in the lower mold that shown in Fig. 4, and 10 is a decorative film is inserted. 9 Before attaching the upper mold the foaming multicomponent plastic brought in. The mold is then closed, so that foaming can take place. If this ended is, the mold can be opened and the molded article are removed. It looks like this, as shown in Fig. 5. To the Edges is on the cover in order in this border area penetration of foaming plastic into the mold and to prevent corresponding dirt. The inflatable Seals 8 This protects.

0015Finally, the cover as in Fig. 6 is indicated, away. The blank is then practically finished. Possibly He has yet to be trimmed at the edges. On Another reworking is not required.