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A large-scale high-precision combined foaming mold car device

A foaming mold and high-precision technology, which is applied in the field of large-scale high-precision combined foaming mold car devices, can solve the problems of foaming density, large fluctuation of physical indicators of product apparent quality, high cavitation rate of molded products, and walking positioning. Inaccurate and other problems, to achieve the effect of small fluctuation of foaming density, low cavitation rate and stable physical indicators

Active Publication Date: 2016-03-02
湖南亚太实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no exhaust process in the process of the open foaming device of the air channel plate, the walking positioning is not accurate, the cavity rate of the molded product is high, and the physical indicators such as product foaming density and product appearance quality fluctuate greatly

Method used

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  • A large-scale high-precision combined foaming mold car device
  • A large-scale high-precision combined foaming mold car device
  • A large-scale high-precision combined foaming mold car device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Material preparation: combined polyether 50kg, material temperature 35°C, isocyanate (PM-200) 55kg, material temperature 35°C, alkali-free glass fiber 2400tex, 20kg, glass fiber bundle cut length 50mm, 0.8mm PVC leather fabric.

[0035] After being tested by the combined interior molding mold car of the present invention, the density of the air duct product is 0.58g / cm 3 , product thickness δ7.5mm, after testing, product transverse tensile strength 20.68Mpa, product longitudinal tensile strength 21.98Mpa; product transverse bending strength 23.97Mpa, product longitudinal bending strength 22.86Mpa; product impact strength 27.53kJ / m 2 , Flame retardant detection from the fire self-rest.

Embodiment 2

[0037] Material preparation: combined polyether 60kg, material temperature 42°C, isocyanate (PM-200) 60kg, material temperature 40°C, alkali-free glass fiber 2400tex, 40kg, glass fiber bundle cut length 50mm, 1.0mm PVC leather fabric.

[0038] After being tested by the combined interior molding mold car of the present invention, the product density of the air duct is 0.65g / cm 3 . , product thickness δ8.0mm, after testing, product transverse tensile strength 21.96Mpa, product longitudinal tensile strength 22.38Mpa; product transverse bending strength 25.52Mpa, product longitudinal bending strength 27.49Mpa; product impact strength 29.63kJ / ㎡, flame retardant Detect self-extinguishing from fire.

Embodiment 3

[0040] Material preparation: combined polyether 100kg, material temperature 42°C, isocyanate (PM-200) 105kg, material temperature 40°C, alkali-free glass fiber 2400tex, 75kg, glass fiber bundle cut lengths are 15mm, 25mm, 50mm, 1.0mm PVC leather fabric.

[0041] After being tested by the combined interior molding mold car of the present invention, the product density of the air duct is 0.62g / cm 3 . , product thickness δ8.5mm, after testing, product transverse tensile strength 25.52Mpa, product longitudinal tensile strength 26.39Mpa; product transverse bending strength 26.96Mpa, product longitudinal bending strength 28.56Mpa; product impact strength 31.25kJ / ㎡, flame retardant Detect self-extinguishing from fire.

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Abstract

The invention discloses a large-scale high-precision combined type foaming mold vehicle device. According to the device, the rear end of an upper mold set (30) is connected with the rear end of a lower mold set (26) through a mold turning mechanism (29); a mold locking mechanism (32) is arranged at the front end of the lower mold set (26); the mold locking mechanism (32) is correspondingly fastened with the front end of the upper mold set (30); the structure of the mold turning mechanism (29) is as follows: a turnover oil cylinder (18), a rear-end mold locking oil cylinder (36) and a rear-end fastening mechanism (19) are arranged at the rear end of the lower mold set (26); the rear end of the upper mold set (30) is hinged to the turnover oil cylinder (18) and connected with the rear-end mold locking oil cylinder (36) through a mold locking pivot mechanism (35); the rear-end fastening mechanism (19) is in butt joint with the rear end of the upper mold set (30); the structure of the mold locking structure (32) is as follows: a front-end mold locking oil cylinder (52) is arranged at the front end of the lower mold set (26); the piston of the front-end mold locking oil cylinder (52) is connected with a guide mechanism (53); a front-end fastening mechanism (40) which is in butt-joint with the guide mechanism (53) is arranged at the front end of the upper mold set (30). The large-scale high-precision combined type foaming mold vehicle device has the advantages that the exhaust working procedure is realized, the void fraction of the formed product is low, the foaming density fluctuation is low, and the physical index is stable.

Description

technical field [0001] The invention relates to a mold car device, in particular to a large-scale high-precision combined foaming mold car device suitable for molding automobiles and rail transit air duct interior products. Background technique [0002] At present, interior products such as air duct panels and roof panels for automobiles and rail transit are 4 to 12 meters in length. Interior products made of glass fiber reinforced polyurethane are light in weight, have good weather resistance, and are not easy to deform at high temperatures. However, mixed materials such as glass fiber and polyurethane Due to the limitation of milk white time (about 30 seconds) and curing time, the production of long air duct boards, roof boards and other products requires continuous pouring of glass fiber, polyurethane and other mixed materials in the mold, and the general pouring time takes 70 to 150 seconds to complete Usually, the glass fiber, polyurethane and other mixed materials in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/58B29C44/02
Inventor 董升顺常雪舢谢胜辉
Owner 湖南亚太实业有限公司
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