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Injection molding and compression molding method of composite tufted carpet plastic interior ornament

A technology for tufted carpets and interior parts, which is applied in the field of injection molding of composite tufted carpet plastic interior parts, and can solve the problems of high price of composite tufted carpet interior parts, high cost of low-pressure injection molding equipment, and the impact on popularization and use. problems, achieve the effect of improving the composite bonding effect, ensuring popular use, and simple implementation

Active Publication Date: 2011-11-02
NINGBO SUNLIGHT MOTOR PARTS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The production condition requirements of the low-pressure injection molding method and the cost of the low-pressure injection molding equipment are relatively high, so the price of the composite tufted carpet interior parts produced by this method is also relatively high, thus affecting the low-to-medium price of such interior parts. The popularity and use of high-end cars, the popularity of existing low-voltage equipment is low, and the products produced by this equipment have a narrow range of adaptability

Method used

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  • Injection molding and compression molding method of composite tufted carpet plastic interior ornament
  • Injection molding and compression molding method of composite tufted carpet plastic interior ornament
  • Injection molding and compression molding method of composite tufted carpet plastic interior ornament

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 Shown, the present invention a kind of injection molding method of composite tufted carpet plastic interior parts. Measure the parameters of the injection molding machine such as barrel temperature, carpet infrared heating device, mold closing position action, injection feeding, barrel storage, mold pressure and cooling, and mold opening position action, and start production after reaching the design parameter state. Include the following steps:

[0032] a. Select a composite tufted carpet of suitable specifications. The suitable specification of the composite tufted carpet is 500-800g / m 2 , needle distance 5 / 64, tuft pullout force ≥ 10N, tear strength ≥ 50N, nylon fiber is used as the fiber. And carry o...

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Abstract

The invention discloses an injection molding and compression molding method of a composite tufted carpet plastic interior ornament. The method comprises the following steps of: a, selecting a composite tufted carpet; b, heating the composite tufted carpet; c, opening a mold, fixing the composite tufted carpet in the injection mold, and then closing the mold; d, injecting plastic in an amount which is 10 to 20 percent of the required injection molding total amount under low pressure at a low speed by an injection molding machine through a plurality of hot runners; e, opening the injection moldto reserve certain clearance between a movable mold and a fixed mold, and starting the injection molding machine to inject the rest plastic of the required injection molding total amount under high pressure at a high speed; f, closing the mold, forming the composite tufted carpet plastic interior ornament by pressing, and simultaneously cutting the redundant edge and cooling; and g, opening the mold, and taking out the composite tufted carpet plastic interior ornament. The method is low in production condition requirement, good in product quality and high in production efficiency, the required equipment is cheap, and the produced product can be popularized in a large range.

Description

technical field [0001] The invention relates to the technical field of in-mold injection molding, in particular to a method for injection molding and compression molding of composite tufted carpet plastic interior parts. Background technique [0002] Plastic automotive interior parts are one of the main interior parts of automobiles. They are installed on the side body or door of the driving and passenger space to achieve decoration of the body and sound insulation and noise reduction while protecting the occupants. In order to improve the comfort of the interior of the car body, improve the effect of sound insulation and noise reduction and the safety protection of members, soft fabrics are usually compounded on the surface. For the compounding of soft fabrics, under the existing technical conditions, generally adopt low-pressure injection molding or plastic injection molding body first and then carry out fabric compounding process. After spraying glue on the surface of th...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29L31/58
Inventor 戴初发
Owner NINGBO SUNLIGHT MOTOR PARTS
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