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Method for manufacturing filled formed sound insulation pad for automobile

A manufacturing method and technology of sound-insulating pads, which are applied in the production field of filling-molded sound-insulating pads for automobiles, can solve the problems that the shape cannot be completely in place, and the same degree of softness and hardness cannot be achieved, so as to save materials, reduce scraps, and achieve the same degree of softness and hardness. Effect

Active Publication Date: 2014-06-25
SHANGHAI XINAN CAR DEADENING FELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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 part is softer, and it is impossible to achieve the same degree of softness and hardness in all positions.

Method used

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  • Method for manufacturing filled formed sound insulation pad for automobile

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A method for making a filling-molded sound-insulating pad for automobiles. The method adopts the air-flow mixing filling molding method, uses the filling system to fill the fiber material into the mesh mold according to the thickness of each part, and then molds it, and finally water-cuts the edge material get the product. Specifically include the following steps:

[0024] (1) Put 70kg of cloth flowers, 25kg of molten fiber and 5kg of sponge particles into the hair mixing box for mixing, and send them into the hair storage box at the filling port after mixing evenly;

[0025] (2) Use the filling system to drive the uniformly mixed materials in the hair storage box into the molding mold through the filling port according to the thickness requirements of the parts; the structure of the filling system is as follows: figure 1 As shown, it consists of a cotton storage box 1, a fan 2, a hose 3, a second cotton storage box 4 and a cotton bin 5. The cotton storage box 1 is con...

Embodiment 2

[0030] A method for making a filling-molded sound-insulating pad for automobiles. The method adopts the air-flow mixing filling molding method, uses the filling system to fill the fiber material into the mesh mold according to the thickness of each part, and then molds it, and finally water-cuts the edge material get the product. Specifically include the following steps:

[0031] (1) Put 65kg of cloth flowers, 30kg of molten fiber and 5kg of sponge particles into the hair storage box for mixing, and send them into the hair storage box at the filling port after mixing evenly;

[0032] (2) Use the filling system to drive the uniformly mixed materials in the hair storage box into the forming mold through the filling port according to the thickness requirements of the parts;

[0033] (3) On the lower mold of the forming mold filled with materials, the fiber web is laid as a whole, and the laying amount of the fiber web is 800g / m 2 ;

[0034] (4) Clamp the upper and lower molds,...

Embodiment 3

[0037] A method for making a filling-molded sound-insulating pad for automobiles. The method adopts the air-flow mixing filling molding method, uses the filling system to fill the fiber material into the mesh mold according to the thickness of each part, and then molds it, and finally water-cuts the edge material get the product. Specifically include the following steps:

[0038] (1) Put 77kg of cloth flowers, 20kg of molten fiber and 3kg of sponge particles into the hair storage box for mixing, and send them into the hair storage box at the filling port after mixing evenly;

[0039] (2) Use the filling system to drive the uniformly mixed materials in the hair storage box into the forming mold through the filling port according to the thickness requirements of the parts;

[0040] (3) On the lower mold of the forming mold filled with materials, the fiber web is laid as a whole, and the laying amount of the fiber web is 1000g / m 2 ;

[0041] (4) Clamp the upper and lower molds...

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Abstract

The invention relates to a method for manufacturing a filled formed sound insulation pad for an automobile. The method comprises the following steps of: filling a fibre material in a mesh mould according to the thickness conditions of various parts by utilizing a filling system and adopting an airflow mixed filling and forming manner; then mould pressing and forming; and finally, water cutting and punching an edge material to obtain the sound insulation pad. Compared with the prior art, by utilizing a specific filling hole, the parts with non-uniform thicknesses can be up to same density; that is to say, the parts are same in density and different in thicknesses; therefore, the various parts are same in flexibility; furthermore, the forming effect is good; the materials can also be saved; the thin parts and the thick parts in the cavity of the mould are unnecessary to be filled with same materials; and, because the materials are directly punched in the mould, leftover materials are reduced.

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. Contents of the invention [0003] The object of the present invention is to provide a method for maki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/42B29L31/58
Inventor 庄健
Owner SHANGHAI XINAN CAR DEADENING FELT
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