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Production method of acoustic shock absorption pad under automobile carpet

A technology for acoustic damping pads and car carpets, applied in chemical instruments and methods, layered products, vehicle parts, etc., can solve problems such as unfavorable vehicle weight reduction and energy saving, product materials are not environmentally friendly, and product weight is large, etc., to achieve Improve operating efficiency, reduce product residue, and reduce weight

Inactive Publication Date: 2016-08-17
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing acoustic shock pads under the carpet mainly have the following problems: poor sound insulation; product materials are not environmentally friendly; product weight is large, which is not conducive to vehicle lightweight and energy saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Produce Wuhan Shenlong A94 under-carpet acoustic damping pad, its specification is: length 1800×width 1400mm.

[0020] The production method of the acoustic shock absorbing pad under the automobile carpet comprises the following steps:

[0021] a. Skin laying: the skin is made of EVA material, the raw materials are stacked on the loading table, and the raw materials are transferred to the oven mesh chain by the suction machine; EVA weight: 2500g / m 2 , thickness: 1.8mm;

[0022] b. Drying and softening of the skin: The raw materials are sent to the oven by the rotating network chain conveyor for drying. The temperature of the upper heating zone is 320°C, the temperature of the lower heating zone is 330°C, and the drying time is 33s.

[0023] c. Skin adsorption molding: use the rotating network chain to lay the softened material on the mold, press the raw material by the mold pressure frame and carry out vacuum adsorption cooling molding to obtain a semi-finished product...

Embodiment 2

[0031] Produce Dongfeng Honda 2SV under-carpet acoustic damping pad, its specification is: length 1850×width 1460mm.

[0032] The production method of the acoustic shock absorbing pad under the automobile carpet comprises the following steps:

[0033] a. Skin laying: the skin is made of EVA material, the raw materials are stacked on the loading table, and the raw materials are transferred to the oven mesh chain by the suction machine; EVA weight: 2500g / m 2 , thickness: 1.8mm;

[0034] b. Drying and softening of the skin: The raw materials are sent to the oven by the rotating network chain conveyor for drying. The temperature of the upper heating zone is 325°C, the temperature of the lower heating zone is 335°C, and the drying time is 35s.

[0035] c. Skin adsorption molding: use the rotating network chain to lay the softened material on the mold, press the raw material by the mold pressure frame and carry out vacuum adsorption cooling molding to obtain a semi-finished product...

Embodiment 3

[0043] Produce Wuhan Shenlong T88 under-carpet acoustic damping pad, its specification is: length 1550×width 1480mm.

[0044] The production method of the acoustic shock absorbing pad under the automobile carpet comprises the following steps:

[0045] a. Skin laying: the skin is made of EVA material, the raw materials are stacked on the loading table, and the raw materials are transferred to the oven mesh chain by the suction machine; EVA weight: 2500g / m 2 , thickness: 1.8mm;

[0046] b. Drying and softening of the skin: The raw materials are sent to the oven by the rotating network chain conveyor for drying. The temperature of the upper heating zone is 328°C, the temperature of the lower heating zone is 340°C, and the drying time is 38s.

[0047] c. Skin adsorption molding: use the rotating network chain to lay the softened material on the mold, press the raw material by the mold pressure frame and carry out vacuum adsorption cooling molding to obtain a semi-finished product; ...

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Abstract

The invention relates to a production method of an acoustic damping pad under an automobile carpet, belonging to the technical field of automobile parts production. It includes: laying the skin, drying and softening the skin, forming the skin by adsorption, laying the base material, heating the base material, pressing and forming, and cutting with a water jet. The acoustic damping pad under the carpet of the automobile produced by the method of the present invention meets the performance index requirements such as sound insulation, shock absorption, environmental protection and light weight; the weight of the acoustic damping pad under the carpet is greatly reduced, and the requirements for the lightweight design of the whole vehicle are met ;The use of thermoplastic felt reduces the cost of raw materials and is more selective; in the process of material processing, the use of hot air box heating, mold cooling and shaping, and water jet cutting, the process is stable, ensuring the safety and accuracy of the operation, and at the same time improving Operational efficiency; less product residue; saving manufacturing costs; no harmful substances are produced in the entire production process of the product.

Description

technical field [0001] The invention relates to a production method of an acoustic damping pad under an automobile carpet, belonging to the technical field of automobile parts production. Background technique [0002] The acoustic damping pad under the car carpet is installed under the car to play the role of sound insulation, heat insulation, shock absorption, noise reduction and vehicle weight reduction. In the era of more and more pursuit of high performance, environmental protection, energy saving, lightweight, and individualization, the interior of a car, like the shape of a car, has become an important factor for people to choose a car. Therefore, the requirements for automotive interior parts are getting higher and higher. In the prior art, performance indicators such as high sound insulation, low weight, strong heat insulation, shock absorption, recyclability, and environmental protection of under-carpet acoustic cushions have become bottlenecks, restricting the dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/02B32B37/06B32B37/12B32B38/04B32B38/16B32B38/18
CPCB32B37/02B32B37/06B32B37/12B32B38/04B32B38/16B32B38/18B32B2038/045B32B2307/718B32B2331/04B32B2367/00B32B2605/08
Inventor 叶佳乐陶天梦唐传政
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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