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A kind of manufacturing method of filling molding sound insulation pad for automobile

A production method and technology for sound insulation pads are applied in the field of production of filled and molded sound insulation pads for automobiles, which can solve the problems of inability to have a large density adjustment, low production efficiency, etc., and achieve material saving, high production efficiency, and good molding effect. Effect

Active Publication Date: 2018-04-24
SHANGHAI XINAN CAR DEADENING FELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this invention has the following defects: the production efficiency is extremely low, about 1 piece / 5 minutes, and if there is a local density increase, it is impossible to adjust the density greatly

Method used

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  • A kind of manufacturing method of filling molding sound insulation pad for automobile

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Effect test

Embodiment 1

[0029] A method for making a filling-molded sound-insulating pad for automobiles. The method adopts the air-flow mixing filling molding method, and the flattened filling mesh mold is made according to the thickness of each part, and the fiber raw material is filled into the filling mesh mold by using the filling system. After being fixed and heated in place by an oven, it is molded and formed, and finally the edge material is punched to obtain the product. Specifically include the following steps:

[0030] (1) Put 52kg of cloth flowers, 43kg of molten fiber and 5kg of sponge particles into the opener for airflow mixing, and send the uniformly mixed raw materials into the hair storage box behind the vibrating chamber;

[0031] (2) closed filling and forming mesh mould; described filling and forming mesh mold such as figure 1 As shown, it is located above the conveyor belt, with a feed port on one side and a discharge port on the other side. The top of the cavity is provided wi...

Embodiment 2

[0037] (1) Put 46kg of cloth flowers, 50kg of molten fiber and 4kg of sponge particles into the opener for airflow mixing, and send the evenly mixed raw materials into the hair storage box behind the vibrating bin;

[0038] (2) closed filling forming mesh mold;

[0039] (3) Use the vibrating chamber to evenly spread the raw materials on the conveyor belt, and blow the raw materials into the filling molding mold through the yarn laying fan; after the filling is completed, the mold is automatically opened to make fiber cakes. Fiber cake weight is 7000g.

[0040] (4) Send the filled fiber cake to the heating oven through the conveyor belt. There is a pair of oven mesh molds on the upper part of the oven; the oven mesh mold is clamped to fix the fiber cake, and the hot air is turned on for heating and molding. The heating temperature is controlled at 200 ° C. 35sec, after the heating is in place, the mold is opened; the fiber cake is heated.

[0041] (5) The heated fiber cake is...

Embodiment 3

[0044] A method for making a filling-molded sound-insulating pad for automobiles, specifically comprising the following steps:

[0045] (1) Put the commercially available cloth flowers, commercially available melted fibers and commercially available sponge particles into the opener at a weight ratio of 50:35:3 for airflow mixing, and the uniformly mixed raw materials are sent into the hair storage box behind the vibrating chamber ;

[0046] (2) closed filling forming mesh mold;

[0047] (3) Use the vibrating chamber to evenly spread the raw materials on the conveyor belt, and blow the raw materials into the filling and forming mesh mold through the yarn laying fan; after filling, the filling and forming mesh mold is automatically opened to obtain fiber cakes;

[0048]The filling and forming mesh mold is located above the conveyor belt, with a feed port on one side and a discharge port on the other side, a boss matching the thickness of the sound insulation pad to be formed is...

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Abstract

The invention relates to a method for making a filling-molding sound-insulating pad for automobiles. The method adopts the air-flow mixing filling molding method, and uses a filling system to fill fiber materials into a filling-molding mesh mold according to the shape of the filling-molding mesh mold according to the thickness of each part. Fiber cakes with different thicknesses at different positions are made, and after heating, they are put into the forming mesh mold for compression molding, and finally the product is obtained by punching the edge material through the punching mold. Compared with the prior art, the invention has the advantages of equal density and different thickness, good molding effect and the like.

Description

technical field [0001] The invention relates to a method for making a sound-insulating pad, in particular to a method for making a filling-molded sound-insulating pad for automobiles. Background technique [0002] At this stage, in order to meet the requirements of comfort, all stepping areas of parts in the passenger compartment floor sound insulation mat in the automotive industry are required to have basically the same degree of softness and hardness. At present, the parts here are all pressed and formed with a single layer of uniform thickness material; when the shape of the part fluctuates greatly, the shape cannot be completely in place with this molding method. Due to the uniform thickness of the material, the thin part of the formed part is hard, The thicker places are softer, and it is impossible to achieve the same degree of softness and hardness in all places. [0003] Chinese invention patent ZL201010237114.X discloses a method for making a filling-molded sound ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/42B29C70/54
Inventor 高翠梅庄健
Owner SHANGHAI XINAN CAR DEADENING FELT
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