Production method for low-weight automotive carpet lower acoustic shock pad

A technology for acoustic shock absorbing pads and car carpets, which is applied in chemical instruments and methods, special positions of vehicles, layered products, etc., and can solve problems such as unfavorable vehicle weight reduction and energy saving, product materials that are not environmentally friendly, and heavy product weight , to achieve the effect of improving operating efficiency, reducing raw material costs, and reducing product surplus

Inactive Publication Date: 2016-08-31
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

[0020] Production of Wuhan Shenlong T9 under-carpet acoustic damping pad, its specification is: length 1750×width 1390mm.

[0021] The production method of the acoustic shock absorbing pad under the lightweight automobile carpet comprises the following steps:

[0022] 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;

[0023] b. Drying and softening of the skin: The raw materials are sent to the oven by the rotary network chain conveyor for drying. The temperature of the upper heating zone is 340°C, the temperature of the lower heating zone is 350°C, and the drying time is 30s.

[0024] 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; vacuum adsorption cooling ...

Embodiment 2

[0033] Production of Wuhan Shenlong W2 under-carpet acoustic damping pad, its specification is: length 1800×width 1500mm.

[0034] The production method of the acoustic shock absorbing pad under the lightweight automobile carpet comprises the following steps:

[0035] 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;

[0036] 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 340°C, the temperature of the lower heating zone is 340°C, and the drying time is 30s.

[0037] 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; vacuum adsorption coolin...

Embodiment 3

[0046] Produce Dongfeng Honda 2CE under-carpet acoustic damping pad, its specification is: length 1950×width 1600mm.

[0047] The production method of the acoustic shock absorbing pad under the lightweight automobile carpet comprises the following steps:

[0048] 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;

[0049] 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 370°C, the temperature of the lower heating zone is 360°C, and the drying time is 37s.

[0050] 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; vacuum adsorption cooling mol...

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Abstract

The invention relates to a production method for a low-weight automotive carpet lower acoustic shock pad and belongs to the technical field of automobile part production. The method includes the surface layer laying step, the surface layer baking, warming and softening step, the surface layer adsorption forming step, the surface layer water jet cutter cutting step, the base material laying step, the base material baking and warming step, the compression forming step and the water jet cutter cutting step. The low-weight automotive carpet lower acoustic shock pad produced through the method meets the requirements for the performance indexes such as sound insulation, shock absorption, environmental protection and low weight; the weight of the carpet lower acoustic shock pad is greatly reduced, and the requirement for low weight design of a whole automobile is met; thermoplastic felt is selected, so that the cost of a raw material is reduced, and selectivity is higher; EVA is additionally arranged on part of the surface layer of the felt, so that the product has the beneficial effect of being low in weight, and meanwhile the cost of the material is reduced; in the material processing process, hot air box heating, die cooling and shaping and water jet cutter cutting are adopted, the technology is stable, the safety and accuracy of operation are guaranteed, and meanwhile the operation efficiency is improved; the redundant material of the product is small; the manufacturing cost is saved; and no harmful substances are generated in the whole production process of the product.

Description

technical field [0001] The invention relates to a production method of an acoustic damping pad under a lightweight automobile carpet, belonging to the technical field of automobile parts production. Background technique [0002] The acoustic damping pad under the lightweight 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 existing technology, performance indicators such as high sound insulation, low weight, strong heat insulation, shock absorption, recyclability, and environmental protection of under-carpet acoustic shock pads have beco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N3/04B29C51/10B26F3/00B32B27/30B32B27/06B32B37/10
CPCB60N3/042B26F3/004B29C51/10B32B27/06B32B27/306B32B37/10B32B2307/50
Inventor 叶佳乐陶天梦唐传政
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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