Tail end and hinge structure of PP cellular board and treatment process thereof

Abstract

The invention discloses a tail end and hinge structure of a PP cellular board and a treatment process thereof. The structure comprises a cellular board layer (5) and an epidermal layer (10) fixedly covering the lower surface of the cellular board layer, wherein the epidermal layer coats the end surface (6) of the cellular board layer of the cellular board layer and forms an epidermal layer folding face (7) on the end surface of the cellular board layer; a semi-arc-shaped hinge port (9) is formed in the cellular board layer. By means of a reversing technology, the rim of the cellular board layer is coated, so that the cellular board layer is not leaked while the strength is increased, and the commodity is enhanced; the cellular board layer is compounded and bonded to the epidermal layer while a PP material is extruded, so that a solvent adhesive is solved, the damage on the environment and human is reduced, and meanwhile, the residue of the solvent adhesive is also solved, and the commodity is enhanced; the hinge is heated and thermally pressed through the cellular board layer to overturn at 180 degrees, so that a non-woven fabric is not used, and the material cost is lowered.

Description

technical field [0001] The invention relates to a honeycomb panel end and hinge structure, in particular to a PP honeycomb panel end and hinge structure and a treatment process thereof, belonging to the technical field of automotive interior parts. Background technique [0002] The spare tire cover plate level existing in the prior art (as figure 1 Shown) includes the underlying skin material layer (PET), the skin material layer is coated with a solvent adhesive material layer (generally polyacrylic resin), and the solvent adhesive material layer is covered with a PP honeycomb panel material layer (PP), PP honeycomb panel The end of the material layer is provided with a non-woven fabric material layer (PET). The manufacturing process is generally as follows: select material PP sheet or skin, through punching, glue spraying, baking, pasting and compacting, add non-woven installation accessories, and finally check and pack to form the final spare tire cover. [0003] However...

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Problems solved by technology

[0003] However, there are defects in the existing spare tire cover plate and its processing technology: 1) The honeycomb leaks outside after punching the PP honeycomb panel, the commodity is poor, and the peripheral strength is poor. The reason for this is that the PP honeycomb panel is punched with a punching knife die , the surrounding part of the honeycomb will be damaged after being subjected to external force; 2) After the PP honeycomb panel and the skin are sprayed with glue, there will be residual glue around, which will affect the commerciality, and spraying solvent glue will harm the human body, and the VOC index of the product will be biased. High, the reason is that in order to paste the PP honeycomb panel and the skin, solvent glue must be sprayed, so the VOC index of the product will be high, and in order to ensure a good paste, the glue spraying range on the skin is larger than that of the PP honeycomb panel, and it will Residual glue is produced; 3) PP honeycomb panels realize the function of hinges by pasting non-woven fabrics at the junction of the board and the board. 180° flip of the cover

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