Cover plate of automobile trunk cover and manufacturing process thereof

A technology for manufacturing crafts and storage boxes, which is applied to vehicle parts, transportation and packaging, etc., which can solve the problems of high cost, complicated process, and easy occurrence of defective products, and achieve enhanced load-bearing capacity, high product qualification rate, and good load-bearing effect Effect

Inactive Publication Date: 2011-08-17
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the body injection molding process is less, the process is complicated, the product is heavy and costly, and it is difficult to realize the lightweight of the whole vehicle; after the fabric is sprayed with glue and the body is molded, the edge is trimmed. Good product
In addition, the above-mentioned existing manufacturing process still has disadvantages such as high product cost, heavy weight, and easy glue separation between the fabric and the body, and the production process is backward, with many processes, and the product smell cannot meet the requirements of automobile regulations.

Method used

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  • Cover plate of automobile trunk cover and manufacturing process thereof
  • Cover plate of automobile trunk cover and manufacturing process thereof
  • Cover plate of automobile trunk cover and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] figure 1 — Figure 6 Shown is a cover plate for the rear storage box of a car. The main body is similar to an oblong structure. Its main body is an HDPE blow-molded main body 7, and a PET needle-punched non-woven fabric 1 fabric layer is bonded to the outside. Rope hook and drawstring 2.

[0028] The blow molding body 7 is a hollow structure with closed surroundings, and reinforcing ribs are evenly distributed in the hollow cavity.

[0029] Steel pipes 5 are arranged at intervals in the hollow cavity of the body.

[0030] The production process of the above-mentioned automobile rear storage box cover cover is blow-molded using a special mold, and it is carried out in the following steps: mold opening → hanging PET needle-punched non-woven fabric on the fixed mold → inserting 180- Molten HDPE at 220℃ is blown into a pocket shape → the mold is closed and the product is kept under pressure at the same time, and inflated → the ejector pin of the movable mold is pushed to...

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Abstract

The invention discloses a cover plate of an automobile trunk cover and a manufacturing process thereof, wherein the body of the cover plate is made of an HDPE (High Density Polyethylene) material; the fabric of the body is PET (Polyethylene Terephthalate) needle nonwovens; the body is hollow, and the periphery is closed; the thickness of the body is uniform; reinforcing ribs and two steel tubes are uniformly distributed in a cavity; the back of the body is provided with a rope hook and a drawstring; the body has the advantages of strong weight capacity and light weight; the reinforcing ribs can prevent a top plate from being warped; the body has the characteristics of no toxin, no taste and no odor; the surface of a product is covered with lint, thereby better carrying out sound insulation and sound absorption and realizing the functions of decoration and beautification; the smell of the product is in conformity with the requirements of the relevant automobile laws and regulations; the manufacturing process of the cover plate is auxiliarily molded by adopting blow molding gas; the once bonding is carried out on the body of a blow molding piece and the fabric by utilizing the fusion state of plastics; the once die cutting is carried out on the boundary; and the manufacturing process has the advantages of simple working procedures, and high qualification rate of the product, and is easy to control. The invention is suitable for producing the cover plate of the automobile trunk cover, and the product is installed in a vehicle trunk when in use, is used for bearing and has the functions of decorating and beautifying the trunk.

Description

technical field [0001] The invention relates to a vehicle accessory, in particular to a cover plate of a rear storage box of an automobile and a manufacturing process thereof. Background technique [0002] The cover of the rear storage box of the car is located in the trunk of the car and above the tires. It is used to decorate and beautify the trunk. It is mainly used to place items and achieve better overlap with other accessories. The general design load-bearing capacity of the cover plate of the rear storage box of the car is 100kg. The conventional manufacturing process of the existing automobile rear tank cover is as follows: [0003] ① Use PP modified material to inject the body, and apply 3M primer on the joint (because various adhesives are difficult to bond to PP, so 3M primer should be applied, and the price of 3M primer is quite high); [0004] ② Then spray glue on the surface and leave it for a period of time; [0005] ③Put the cover plate on the lower mold o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R5/04B29C49/20
Inventor 李海涛
Owner GREAT WALL MOTOR CO LTD
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