Vacuum plastic-absorbing molding process and device for reclaimed leather skin of automobile column plaque

A technology of vacuum blistering and recycled leather, which is applied to household appliances, other household appliances, household components, etc., can solve the problems of uneven deformation, cracks, wrinkles, etc., to avoid damage or wrinkles, reduce applications, and increase tolerance. Effect

Active Publication Date: 2016-11-09
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the uneven deformation, cracks, and wrinkles of animal skin fiber regenerated leather in the process of vac

Method used

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  • Vacuum plastic-absorbing molding process and device for reclaimed leather skin of automobile column plaque
  • Vacuum plastic-absorbing molding process and device for reclaimed leather skin of automobile column plaque
  • Vacuum plastic-absorbing molding process and device for reclaimed leather skin of automobile column plaque

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Evenly mix 4080 fiber and kraft fiber in a certain proportion, wherein the mass fraction of 4080 fiber is 10%. Then the mixed fibers are carded into a web, and the regenerated leather roll material 101 is obtained through 7 spunlace non-woven processes. The thickness of the prepared regenerated leather skin is kept at 1.2mm.

[0058] (2) Select the male mold for vacuum blister forming, uncoil the regenerated leather obtained in (1) and the 0.5mm thick PU film roll material 102 of the prefabricated pattern at the unfolding station A, and transfer it to the heating station B via the conveyor belt .

[0059] (3) by figure 2 The heating unit 201 arranged in a matrix is ​​shown to carry out precise temperature control and heating on the regenerated leather composite sheet. Each heating unit is composed of six heating sleeves 202, and the temperature is precisely controlled by the temperature control system 103. Raise the overall temperature of the heating zone to 13...

Embodiment 2

[0065] (1) Evenly mix N720 fiber and pigskin fiber in a certain proportion, wherein the mass fraction of N720 fiber is 15%. Then the mixed fibers are air-laid, and the regenerated leather skin 101 is produced through a spunlace non-woven process. The thickness of the prepared regenerated leather skin is kept at 1.2 mm.

[0066] (2) Select the positive mold for vacuum forming, unwind the regenerated leather obtained in (1) and the PU film 102 with a thickness of 0.3mm in the prefabricated pattern at the same time through the spreading station A, wherein the PU film is located above the regenerated leather. The sheet is transferred to the heating station B via the conveyor belt.

[0067] (3) by figure 2 The matrix-arranged heating units shown in the figure conduct precise temperature-controlled heating on the regenerated leather composite sheet. Each heating unit 201 is composed of six heating jackets 202 , and the temperature control is realized through the temperature cont...

Embodiment 3

[0073] (1) Evenly mix 4080 fiber and kraft fiber in a certain proportion, wherein the mass fraction of 4080 fiber is 17%. The evenly mixed fibers are air-laid into a web, and then subjected to six spunlace processes to produce regenerated leather.

[0074] (2) Select the vacuum suction forming process of the female mold, and pre-compound a layer of thermoplastic PU film on the obtained regenerated leather sheet. The thickness of the PU film is about 0.5mm, and the PU film does not need to be processed in advance. The rolled composite sheet is transported to the unfolding station for uncoiling, in which the PU film is located under the regenerated leather, and is transported to the heating station through the conveyor belt.

[0075] (3) The heating station composed of matrix-arranged heating units realizes precise temperature-controlled heating of preformed sheets.

[0076] (4) The heated regenerated leather and PU sheet are transported to the vacuum blister forming station, a...

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Abstract

The invention provides a vacuum plastic-absorbing molding process and device for reclaimed leather skin of an automobile column plaque. Thermoplastic synthetic fibers of a skin-core structure are evenly mixed with animal skin fibers to form a net, and through the spunlace or needle-punching non-weaving process, reclaimed leather mixed with the skin-core type thermoplastic synthetic fibers for the automobile column plaque is obtained; and in the vacuum plastic-absorbing molding procedure, by means of the vacuum plastic-absorbing molding device provided by the invention, multi-station integrated molding of the reclaimed leather skin of the automobile column plaque is achieved through the stations of reclaimed leather roll spreading, precise-temperature-control heating, fixing and vacuum plastic absorbing of the molded skin, recovery of reclaimed leather waste and the like, and the column plaque skin which is excellent in usability and formability is obtained. The vacuum plastic-absorbing molding process is simple, operation is convenient, and practicability is high.

Description

technical field [0001] The invention relates to the field of automobile interior decoration, in particular to a vacuum suction molding process and device for regenerated leather skins of automobile pillar trims. Background technique [0002] As the covering material of the A, B, and C pillars inside the car, the automobile pillar trim mainly plays the role of interior decoration, such as blocking the side air curtain, the sunroof water pipe, etc., which can improve the aesthetics of the interior space of the car; the pillar trim surface should also be It has a good hand feel and meets the comfort requirements of drivers and passengers. [0003] With the improvement of residents' living standards, consumers have put forward higher requirements for the beauty and comfort of automobile interiors. The manufacture of pillar trim is divided into injection molding, covering fabric after injection molding, surface flocking after injection molding, etc. according to different proces...

Claims

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Application Information

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IPC IPC(8): B29C51/10B29C51/46B29L31/30
CPCB29C51/10B29C51/46B29L2031/3041
Inventor 张大伟贾玉玺智杰颖赵亚如周勇
Owner SHANDONG UNIV
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