Airflow filling type automotive interior preforming machine

Abstract

The invention provides an airflow filling type automotive interior preforming machine and belongs to the technical field of automotive interior production devices. The airflow filling type automotive interior preforming machine comprises a preforming box, an airflow circulating mechanism, a fiber conveying mechanism, a hot air generating mechanism and a fiber weighing and metering mechanism, wherein a box cover is formed on the top; a box cavity opening / closing mechanism is arranged on one side of the preforming box, and the other side of the preforming box is provided with an access door; a preforming mold is arranged on the top of the box cavity; a suction hole is formed on the preforming mold; a fiber feeding mechanism is arranged at the bottom of the preforming box; the airflow circulating mechanism is connected with the box cover in a matching mode; the fiber weighing and metering mechanism comprises a frame, a cotton loosening box, a cotton storage box, a first upper star-shaped roller, a second upper star-shaped roller, a first lower star-shaped roller, a second lower star-shaped roller, a cotton shifting roller, a roller shaft power transmission device and a weighing and metering hopper. The airflow filling type automotive interior preforming machine has the advantages that: the density consistency of a fiber cotton layer adsorbed to the preforming mold can be ensured; the whole structure is simple, and the labor intensity of a worker is lightened; ideal processing efficiency is achieved, and energy is saved; and moreover, according to the fiber weighing and metering mechanism, the metering effect can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of production devices for automotive interior parts, and in particular relates to an airflow-filled preforming machine for automotive interior parts. Background technique [0002] Automotive interior parts, such as floor mats and automotive sound insulation felts located in the front and rear driving positions of the car frame cab, are usually made of low-melting thermoplastic fibers such as polypropylene fibers, low-melting thermoplastic fibers and natural fibers (such as hemp fibers, Blended fiber mixed with one or more fibers of cotton fiber, viscose fiber and wool fiber), or mixed with chemical fiber (such as one or more fibers of polyester fiber, nylon fiber and acrylic fiber) ) obtained by heating and pressing. [0003] Chinese Invention Patent Application Publication No. CN101775708A recommends a felt automatic molding machine for automotive interior parts. This patent application scheme makes up for...

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Problems solved by technology

[0005] Under the situation of producing automotive interior parts by means of a lapper or similar equipment, the following technical problems inevitably occur: one, for the same automotive interior parts Although the thickness requirements can be guaranteed through subsequent structural changes in the molding die (pressing die), the consistency of the density of the same automotive interior part is often not guaranteed, thus affecting the product quality of the automotive interior part; second, Either a lot of equipment is invested (such as CN101549671A), or the structure of the equipment is extremely complicated (such as CN101775708A); third, the molding efficiency is low, which is not enough to meet the requirements of industrial mass production

However, in the published patent literature and non-patent literature, there is no technical information on the air-filled automotive interior trim preforming machine, nor does it disclose a fiber weighing and measuring mechanism suitable as a supporting mechanism for the preforming machine. technical content

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