Production technique for manufacturing boot by polypropylene particles with fusion blowing forming method

A production process and luggage technology, applied in the field of automotive interior parts, can solve the problems of the product bearing capacity not meeting the requirements, affecting the health of passengers, and detrimental to the lightweight of the vehicle, achieving a beautiful appearance and reducing the weight of the luggage. , The effect of good bearing capacity

Inactive Publication Date: 2011-03-23
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 prior art, suitcases generally use materials such as polypropylene honeycomb boards and wood fiber boards as supporting substrates. This process mainly has the following problems: 1. The load-carrying capacity of the product does not meet the requirements; 2. The base material in the product The odor of the material is strong, which affects the health of passengers; 3. The product is heavy, which is not conducive to the lightweight of the vehicle and energy saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: a kind of production process of making suitcase by melt blowing molding of polypropylene particles, comprises the following process steps:

[0018] (1) Spray water on the fabric, the water spray volume is 45g / m 2 ; The fabric after spraying water is hung on one side of the mould; the fabric has a gram weight of 550g / m 2 , loop pile carpet with a thickness of 3.5mm;

[0019] (2) A reinforcing rib inserting plate and a blowing needle are arranged outside the other side of the mould, and the reinforcing rib inserting plate and blowing needle can extend into the mold interior;

[0020] (3) The polypropylene particles are drawn into the heating tube by a vacuum machine to be heated and melted, and the heating temperature is 195°C; the melted polypropylene particles are squeezed into the storage bin, when the storage bin material reaches the set value, the storage bin oil cylinder Press down to extrude ring-shaped barrel-shaped molten particles through a circu...

Embodiment 2

[0024] Embodiment 2: A kind of production process of making suitcase by melt blowing molding of polypropylene particles, comprising the following process steps:

[0025] (1) Spray water on the fabric, the water spray volume is 55g / m 2 ; The fabric after the water spray is hung on one side of the mould; the fabric has a gram weight of 650g / m 2 , loop pile carpet with a thickness of 4.5 mm;

[0026] (2) A reinforcing rib inserting plate and a blowing needle are arranged outside the other side of the mould, and the reinforcing rib inserting plate and blowing needle can extend into the mold interior;

[0027] (3) Through the vacuum machine, the polypropylene particles are drawn into the heating tube to heat and melt, the heating temperature is 205°C; the melted polypropylene particles are squeezed into the storage bin, when the storage bin material reaches the set value, the oil tank of the storage bin Press down to extrude ring-shaped barrel-shaped molten particles through a ci...

Embodiment 3

[0031] Embodiment three: a kind of production process of making the suitcase of polypropylene particle melting and blowing molding, comprises the following process steps:

[0032] (1) Spray water on the fabric, the water spray volume is 50g / m 2 ; The fabric after spraying water is hung on one side of the mould; the fabric has a gram weight of 250g / m 2 , a non-woven fabric with a thickness of 2 mm;

[0033] (2) A reinforcing rib inserting plate and a blowing needle are arranged outside the other side of the mould, and the reinforcing rib inserting plate and blowing needle can extend into the mold interior;

[0034] (3) The polypropylene particles are sucked into the heating tube by a vacuum machine to heat and melt, the heating temperature is 200°C; the melted polypropylene particles are squeezed into the storage bin, when the storage bin material reaches the set value, the oil cylinder of the storage bin Press down to extrude ring-shaped barrel-shaped molten particles throug...

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Abstract

The invention relates to a production technique for manufacturing boot by polypropylene particles through fusion blowing forming method, and is characterized in that the production technique comprises the following steps: (1) spraying water to the fabric, and hanging the fabric on one side of a mould after spraying water; (2) setting a reinforcing rib plug board and a blowing pin on the outer part of the other side of the mould; (3) heating the polypropylene particles by a vacuum machine for fusing; and extruding the fused polypropylene particles to form fused particles; (4) stretching the reinforcing rib plug board into the mould; sending the fused particles to the mould; closing two side moulds to form the fused particles into mould material; returning the reinforcing rib plug board to the outer part of the mould after closing the mould; stretching the blowing pin to the inner part of the mould to pierce the mould material; and simultaneously blowing compression air by the blowing pin; (5) after blowing the compression air, punching the circumferential remainder on a punch; (6) trimming the circumferential fabric filament by a pneumatic trimming machine to obtain the boot. The invention solves the performance indexes of the boot assembly such as bearing performance, light weight, high strength and low odor.

Description

technical field [0001] The invention relates to a production process for making suitcases formed by melting and blowing polypropylene particles, and belongs to the technical field of automotive interior parts. Background technique [0002] The trunk of SUV (Sports Utility Vehicle) models is generally installed at the rear of the car to play the role of bearing, 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. In the prior art, suitcases generally use polypropylene honeycomb boards, wood fiber boards and other materials as supporting substrates. This process mainly has the following problems: 1. The load-carrying capacity of the product does not meet the requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/04B29C49/60B29C49/78B29L31/58B29K23/00
Inventor 浦亮
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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