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One-step forming wet production process of automobile calash

A technology of production technology and car roof, applied in metal processing, household components, applications, etc., can solve the problems of high product defect rate, low production efficiency, and many process steps, so as to reduce process steps, improve production efficiency, reduce The effect of labor intensity

Inactive Publication Date: 2011-01-19
WUXI GISSING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of molding process has many steps, complicated operation, long working time, low production efficiency and high product defect rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Production of Guangzhou Automobile Group GA1 roof, its specification is: L1800×W1400mm.

[0019] The production process of this canopy comprises the following steps:

[0020] (1) Roof PU substrate rolling: Use a rubber rolling machine to roll glue on both sides on the ceiling PU substrate, the speed of the rubber rolling machine: 35 rpm, the distance between the upper and lower rollers of the rubber rolling machine: 0.4mm; glue on each side Quantity: 90g / m 2 ;

[0021] (2) Spray softened water: Use a softened water machine to evenly spray softened water on the above-mentioned ceiling PU substrate after the glue has been rolled. The frequency of the softened water motor: 40HZ; the distance between rollers: 5.2mm; the amount of softened water: 15g / m 2 .;

[0022] (3) Substrate combination: Lay film-coated non-woven fabric and glass fiber in sequence on the feeding cardboard, lay the PU matrix of the ceiling that has been rolled and sprayed with demineralized water on t...

Embodiment 2

[0029] Produce Guangzhou Honda 2HC headliner, its specification is: L1950×W1450mm.

[0030] The production process of this canopy comprises the following steps:

[0031] (1) Roof PU substrate rolling: Use a rubber rolling machine to roll glue on both sides of the ceiling PU substrate, the speed of the rubber rolling machine: 40 rpm, the distance between the upper and lower rollers of the rubber rolling machine: 0.7mm; glue on each side Quantity: 120g / m 2 ;

[0032] (2) Spray softened water: Use a softened water machine to evenly spray softened water on the above-mentioned ceiling PU substrate after the glue has been rolled. The frequency of the softened water motor: 42HZ; the distance between rollers: 5.4mm; the amount of softened water: 30g / m 2 .;

[0033] (3) Substrate combination: Lay film-coated non-woven fabric and glass fiber in sequence on the feeding cardboard, lay the PU matrix of the ceiling that has been rolled and sprayed with demineralized water on the glass fi...

Embodiment 3

[0040] Produce Guangzhou Honda GB1 headliner, its specification is: L1950×W1450mm.

[0041] The production process of this canopy comprises the following steps:

[0042] (1) Roof PU substrate rolling: Double-sided rubber rolling is carried out on the ceiling PU substrate with a rubber rolling machine, the speed of the rubber rolling machine: 38 rpm, the distance between the upper and lower rollers of the rubber rolling machine: 0.6mm; glue on each side Quantity: 70g / m 2 ;

[0043] (2) Spray demineralized water: Use demineralized water machine to evenly spray demineralized water on the PU substrate of the roof after the above-mentioned glue has been rolled, demineralized water motor frequency: 44HZ; distance between rollers: 5.3mm; demineralized water volume: 33g / m 2 .;

[0044] (3) Substrate combination: Lay film-coated non-woven fabric and glass fiber in sequence on the feeding cardboard, lay the PU matrix of the ceiling that has been rolled and sprayed with demineralized ...

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PUM

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Abstract

The invention relates to a one-step forming wet production process of an automobile calash, which comprises the steps of rolling plastic on a calash PU matrix, spraying demineralized water, combining a base material, press-forming, cooling, shaping, carrying out waterjet cutting, assembling accessories, inspecting, packaging and the like. The one-step forming wet production process eliminates the step of secondarily jointing a fabric with the base material in the prior art and directly coats the fabric on the base material for one-step press-forming, thereby reducing the process steps, shortening the operation time and improving the process conditions. The produced calash can lead the sound absorption to achieve the grade 3 international leading level, greatly reduce the weight of the calash and meet the requirement on lightweight design of a whole automobile; the product has high rigidity, and can not be broken off or droop; the product is produced by adopting an automatic production line during the whole production process, thereby greatly reducing the labor intensity of workers during the production process and improving the production efficiency; and the product does not produce hazardous substances during the whole production process, thereby being environment-friendly and pollution-free.

Description

technical field [0001] The invention relates to a wet-process production process of one-time molding of an automobile roof, in particular to a roof for being installed on the top of an automobile for heat insulation, sound insulation and beautification, and belongs to the technical field of automobile interior decorations. Background technique [0002] The car roof is generally installed on the top of the car to play the role of heat insulation, sound insulation and beautification. 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. [0003] In the prior art, performance indicators such as high sound absorption, low weight, and high strength of the canopy have become bottlenecks, restricting the devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/02B29C43/58B26F3/00B29L31/58B29K75/00
Inventor 杨子晔
Owner WUXI GISSING AUTO PARTS CO LTD
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