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Production method of multilayered structure under-car carpet acoustic shock absorption pad

A technology for acoustic shock-absorbing pads and car carpets, applied in the field of auto parts production, can solve problems such as poor sound insulation, unenvironmental product materials, and complex manufacturing processes, so as to ensure safety and accuracy, improve work efficiency, and improve manufacturing processes. simple effect

Inactive Publication Date: 2016-08-03
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

In the existing technology, performance indicators such as high sound absorption, high sound insulation, recyclability, light weight, environmental protection, and complex manufacturing process of the acoustic cushion under the carpet have become bottlenecks, restricting the development of the acoustic cushion under the carpet of the car
The existing acoustic shock pads under the carpet mainly have the following problems: poor sound insulation; poor sound absorption; the material of the product cannot be recycled; Odor and harmful substances are generated, and cannot be recycled; the manufacturing process is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Produce Wuhan Shenlong B73 multi-layer structure carpet under the acoustic shock absorbing pad, its specification is: length 1800×width 1430mm.

[0018] The production method of the acoustic damping pad under the multi-layer structure automobile carpet comprises the following steps:

[0019] a. Laying of raw materials: thermoplastic cotton felt and PE film are used as the base material; the cotton felt used to make the soft layer of the acoustic shock absorbing pad is placed on the lower layer; the PE film is placed in the middle layer, and the hard layer used to make the acoustic shock absorbing pad is placed The layer is placed on the upper layer with cotton felt;

[0020] b. Steam hot pressing molding: Put the laid raw materials into the mold for steam heating and pressing; when steam hot pressing, the temperature of the upper mold of the mold is controlled at 180°C, and the temperature of the lower mold of the mold is controlled at 180°C. The molding pressure is co...

Embodiment 2

[0026] Produce Dongfeng Honda 2LX multi-layer structure carpet under the acoustic shock absorber, its specification is: length 1850×width 1490mm.

[0027] The production method of the acoustic damping pad under the multi-layer structure automobile carpet comprises the following steps:

[0028] a. Laying of raw materials: thermoplastic cotton felt and PE film are used as the base material; the cotton felt used to make the soft layer of the acoustic shock absorbing pad is placed on the lower layer; the PE film is placed in the middle layer, and the hard layer used to make the acoustic shock absorbing pad is placed The layer is placed on the upper layer with cotton felt;

[0029] b. Steam hot pressing molding: Put the laid raw materials into the mold for steam heating and pressing; when steam hot pressing, the temperature of the upper mold of the mold is controlled at 178°C, and the temperature of the lower mold of the mold is controlled at 178°C. The molding pressure is control...

Embodiment 3

[0035] Produce Wuhan Shenlong T73 multi-layer structure carpet under the acoustic damping pad, its specification is: length 1750×width 1480mm.

[0036] The production method of the acoustic damping pad under the multi-layer structure automobile carpet comprises the following steps:

[0037] (a) Laying of raw materials: Thermoplastic cotton felt and PE film are used as the base material; the cotton felt used to make the soft layer of the acoustic shock-absorbing cushion is placed on the lower layer; the PE film is placed on the middle layer, which will be used to make the acoustic shock-absorbing cushion The hard layer is placed on the upper layer with cotton felt;

[0038] (b) Hot pressing with steam: Put the laid raw materials into the mold for heating and pressing with steam; when hot pressing with steam, the temperature of the upper mold is controlled at 175°C, and the temperature of the lower mold is controlled at 175°C ℃, the molding pressure is controlled at 13MPa, the ...

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Abstract

The invention discloses a production method of a multilayered structure under-car carpet acoustic shock absorption pad and belongs to the technical field of production of car parts. The production method comprises a raw material laying step, a steaming hot press molding step, a cooling forming step and a water jet cutter cutting step. The multilayered structure under-car carpet acoustic shock absorption pad produced by the production method can replace a heavy coating composite polyurethane foaming product produced by the traditional technology; compared with the heavy coating composite polyurethane foaming product produced by the traditional technology, the multilayered structure under-car carpet acoustic shock absorption pad has the advantages of environment protection, no odors and harmful substances, recycling, light weight, simple manufacturing process and higher dissipation in the acoustic aspect; while the design requirement of light weight of the whole car is met, selectivity is realized; in the material machining process, steaming hot press molding, tool cooling forming and water jet cutter cutting are adopted, the process is stable, and the safety and accuracy of operation are guaranteed; the operation efficiency is improved; excess materials of the product are fewer and recycled so that the manufacturing cost is saved; and no harmful substances and waste materials are generated in the whole product production process.

Description

technical field [0001] The invention discloses a production method of an acoustic damping pad under a multi-layer structure automobile carpet, and belongs to the technical field of automobile parts production. Background technique [0002] The acoustic cushion under the car carpet is installed under the car carpet to play the role of sound absorption, sound insulation, heat insulation, shock absorption and noise 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 absorption, high sound insulation, recyclability, lightweight, environmental protection, and complex manufacturing process of under-carpet acoustic shock pads have become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N3/04B60R13/08B32B37/10B32B37/06B32B43/00
CPCB60N3/042B32B37/06B32B37/10B32B43/003B32B2309/02B32B2309/04B60R13/083
Inventor 叶佳乐陶天梦唐传政
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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