Automobile carpet sound insulation pad and forming method thereof

Abstract

The invention discloses an automobile carpet sound insulation pad and a forming method thereof.The automobile carpet sound insulation pad comprises a PET sound insulation pad body, the PET sound insulation pad body comprises bonding structures formed by curing high-melting-point PET fibers and low-melting-point PET fibers after high-temperature melting, and the bonding structures are dispersed inthe high-melting-point PET fibers. The forming method of the automotive carpet sound insulation pad comprises the following steps: 1) opening high-melting-point PET fibers and low-melting-point PET fibers respectively; 2) mixing the two PET fibers; 3) preparing the mixed fiber into a blank; (4) transferring the blank into a steam mold, melting the low-melting-point PET fibers and then bonding intothe high-melting-point PET fibers, and therefore a sound insulation pad prototype is formed; 5) transferring the prototype of the sound insulation pad into a correction die for correction and shaping; and 6) transferring the sound insulation pad after correction and shaping onto a punching die for punching. According to the present invention, the automobile sound insulation pad is directly moldedfrom the PET fiber material, such that the use amount of the raw materials is low, the production cost is reduced, the density of each region is uniform, and the sound absorption and sound insulationperformances are good.

Description

technical field [0001] The invention relates to the technical field of automobile interior decoration, in particular to an automobile carpet sound insulation pad and a forming method thereof. Background technique [0002] With the continuous and rapid development of my country's economy, people's living standards continue to improve, and people's spending power is also getting stronger. People have higher requirements for the living environment, which promotes the development of the new energy automobile industry and brings automobiles. The overall development and improvement of the interior and exterior decoration industry. At present, both traditional fuel vehicles and new energy vehicles are considering low-cost and low-odor parts. [0003] As an important part of the car interior, the car carpet carries the functions of shock absorption, heat insulation, sound insulation and sound absorption of the car, and plays a very important role in the comfort of passengers. Tradi...

AI Technical Summary

Problems solved by technology

The traditional carpet sound insulation pad is mainly made of hot-pressed plates. This process has a low utilization rate of raw materials and a large waste of raw materials. Due to the limitation of the material structure, the density difference of each area is large, which affects the sound absorption and sound insulation performance of the parts.

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