Automotive upholstery pre-forming machine by using airflow filling method

Abstract

The invention provides an automotive upholstery pre-forming machine by using an airflow filling method, and belongs to the technical field of automotive upholstery producing devices. The automotive upholstery pre-forming machine comprises a pre-forming box, a fiber weighing and measuring mechanism, a fiber conveying mechanism and a hot air generating mechanism, wherein a box cover is formed on the top of the pre-forming box; a box cavity opening and closing mechanism is assembled on one side of the pre-forming box; an access door is assembled on the other side of the pre-forming box; a pre-forming mold is assembled on the top of a box cavity; an induced draft hole is arranged on the pre-forming mold; and a fiber feeding mechanism is assembled at the bottom of the pre-forming box. The automotive upholstery pre-forming machine is characterized by further comprising an airflow circulating mechanism comprising a working motor, a fan, an induced draft tube, an air supply tube, a connected cotton box and a cotton guiding box. The automotive upholstery pre-forming machine has the advantages that density consistency of a fiber cotton layer absorbed on the pre-forming mold can be ensured; the integral structure is simple, and the labor intensity of workers is reduced; processing efficiency is perfect, and energy conservation is facilitated; and the airflow circulating mechanism can realize effects of supplying cotton under positive pressure, absorbing fibers under negative pressure and guiding high-temperature air in the box cavity.

Description

technical field [0001] The invention belongs to the technical field of production devices for automotive interior parts, and in particular relates to a preforming machine for automotive interior parts by an airflow filling method. 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 fiber, 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 ...

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Problems solved by technology

[0005]The applicant believes that the following technical problems will inevitably arise when using a net lapper or similar equipment to produce automotive interior parts: First, for the same car Although the thickness requirements of the interior parts can be guaranteed by the structure of the subsequent molding die (pressing die), the consistency of the density of the same automotive interior part cannot be guaranteed. Specifically, it cannot reflect the uniform density and different thickness. effect, thereby affecting the product quality of automotive interior parts; secondly, either a lot of equipment is invested (such as CN101549671A), or the structure of the equipment is extremely complicated (such as CN101775708A); thirdly, the molding efficiency is low, which is not enough to meet the requirements of industrial mass production

[0006]The long-term research of the applicant shows that the preforming of automotive interior parts by air filling method can completely eliminate the aforementioned technical problems. However, the air filling method The technical problem of the preforming machine for automotive interior parts is how to make the air circulation mechanism simultaneously feed fibers into the cavity of the preforming box and make the fibers fed into the cavity adsorb on the preforming mold. The corresponding technical information is not disclosed in the patent and non-patent literature, so the applicant has made repeated designs and attempts, and the technical solution to be introduced below is produced under this background

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