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Blowing forming process for high-density reinforcing rib fusion composite automobile standby plate

A technology of blow molding and reinforcing ribs, which is applied in the field of automobile interior parts, can solve the problems of difficult forming and easy deformation of large-sized spare plates.

Inactive Publication Date: 2015-10-21
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

[0005] The purpose of the present invention is to overcome the above disadvantages, to provide a high-density reinforced rib fusion composite automobile spare plate blow molding machine that can solve the problems of easy deformation and difficult forming of large-size spare plates, and expand the range of blow-molded spare plates that can be applied to vehicle models. gas forming process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 443A backup board back piece

[0019] Specifications of the rear plate of the spare board: L1165×W425×H35

[0020] The process of blow molding of high-density reinforcement fusion composite automobile spare plate, the steps are:

[0021] (1) Melting of composite polypropylene particles: take composite polypropylene particles and inhale into the heating and melting chamber of the blow molding machine, the temperature of eleven heating zones is 200~220°C, the plasticizing extrusion rate is 65%, and the base material is melted and composited Polypropylene particles, control the temperature of the surface and back of the sent substrate to reach 195°C;

[0022] (2) Laying of raw materials: Hang the needle-punched non-woven fabric in the cavity of the vertically formed mold body;

[0023] (3) Conveying the base material: sending the molten composite polypropylene particles obtained in step (1) to the mold opened in step (2), so that the needle-punched non-woven fa...

Embodiment 2

[0031] The process of blow molding of high-density reinforcement fusion composite automobile spare plate, the steps are:

[0032] (1) Melting of composite polypropylene particles: take composite polypropylene particles and suck them into the heating and melting chamber of the blow molding machine, the temperature of the eleven heating zones is 200~220°C, the plasticizing extrusion rate is 75%, and the base material is melted and composited Polypropylene particles, control the temperature of the surface and back of the substrate sent out to 215°C;

[0033] (2) Laying of raw materials: Hang the needle-punched non-woven fabric in the cavity of the vertically formed mold body;

[0034] (3) Conveying the base material: sending the molten composite polypropylene particles obtained in step (1) to the mold opened in step (2), so that the needle-punched non-woven fabric and the molten composite polypropylene particles are superimposed;

[0035] (4) Molding: Clamping the mold, sealing ...

Embodiment 3

[0041] The process of blow molding of high-density reinforcement fusion composite automobile spare plate, the steps are:

[0042] (1) Melting of composite polypropylene particles: Take composite polypropylene particles and suck them into the heating and melting chamber of the blow molding machine. Polypropylene particles, control the temperature of the surface and back of the substrate sent out to 205°C;

[0043] (2) Laying of raw materials: Hang the needle-punched non-woven fabric in the cavity of the vertically formed mold body;

[0044] (3) Conveying the base material: sending the molten composite polypropylene particles obtained in step (1) to the mold opened in step (2), so that the needle-punched non-woven fabric and the molten composite polypropylene particles are superimposed;

[0045] (4) Molding: Clamping the mold, sealing and pressing, and cooling and forming with internal pressurized air, the clamping pressure is 16MPa, the internal pressurized pressure is 0.9MPa,...

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Abstract

The invention relates to a blowing forming process for a high-density reinforcing rib fusion composite automobile standby plate, and belongs to the technical field of automotive interior ornaments. A product, namely, the high-density reinforcing rib fusion composite automobile standby plate is obtained through composite polypropylene particle fusion, raw material laying, base material conveying, forming and postprocessing. The defect that due to the fact that general large-size standby plates are prone to deformation, the bearing strength is not enough is overcome. No hazardous substances are generated in the forming process of the high-density reinforcing rib fusion composite automobile standby plate, and the high-density reinforcing rib fusion composite automobile standby plate is an environment-friendly product; and the manufactured blow molding standby plate better meets the requirements of automobile markets where competition is increasingly fierce.

Description

technical field [0001] The invention relates to a process for blowing and forming a high-density reinforcing rib fusion composite automobile spare plate, which belongs to the technical field of automobile interior parts. Background technique [0002] As an important load-bearing part in the trunk of a car, the automotive backup board has high requirements for the most basic load-bearing capacity and impact resistance. Modeling, appearance, and integration of accessories put forward higher requirements. The main problems are as follows. The technology and materials of old-fashioned backup boards can no longer fully meet the needs of the automotive market in the new competitive environment. Traditional backup boards also have defects such as poor shape on the back of the product and large seams of surrounding hemming fabrics. The overall appearance affects the evaluation of the whole vehicle. The emergence of blow molding technology backup boards has effectively broken throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/46
CPCB29C70/46
Inventor 浦建强
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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