CN212579347U

CN212579347U - Automobile decoration

Info

Publication number: CN212579347U
Application number: CN201922175940.5U
Authority: CN
Inventors: 肖鹏
Original assignee: Jiangsu Shenxiang Electromechanical Co ltd
Current assignee: Jiangsu Shenxiang Electromechanical Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-02-23
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses an automobile decoration, a decoration body comprises a thermoplastic resin matrix, the outer wall of the thermoplastic resin matrix is fixedly provided with a non-woven fabric layer, the outer wall of the non-woven fabric layer is fixedly provided with a rebounding foam cotton layer, the outer wall of the rebounding foam cotton layer is fixedly provided with a heat-preservation veneer layer, polyurethane cushion blocks are uniformly laid on the outer wall of the soft touch decorative body, a micro-foaming polyurethane layer is assembled on the outer wall of the heat-insulating decorative plate layer, the outer wall of the micro-foaming polyurethane layer is provided with a metal panel to form a metal heat-insulating decorative plate, through the selection of the layered materials and the organic combination of the flame pre-compounding process and the molding process, the consistency of the surface of the product is good, the structure compaction density is higher, deformation pits are prevented from being formed after the product is subjected to high temperature, and the processing quality of the product is ensured.

Description

Automobile decoration

Technical Field

The utility model relates to an automobile decoration mould interior decoration foaming composite technology field specifically is an automobile decoration.

Background

With the popularization of automobile consumption, on one hand, in order to reduce energy consumption, the overall quality of an automobile is required to be reduced as much as possible; on the other hand, passengers seek comfort for riding, the interior trim part is required to have soft touch and noise reduction effects, the automotive interior trim increasingly adopts foam materials as inner liners to realize the two functions, at present, a common method is to firstly perform injection molding on a thermoplastic resin framework, then spray glue or brush glue on the framework, and then adhere polyurethane foam and surface fabric or leather to the thermoplastic resin framework, so that the adhesive curing time is easy to result, subsequent shaping treatment is needed, organic peculiar smell can be generated by adopting poor adhesive, and when the outdoor temperature changes in cold and hot, if the decorative plate is a metal wire drawing panel, because the linear expansion coefficient difference between the metal wire drawing panel and the heat insulation layer is large, the material stress change is easy to cause, the hollow drum deformation between the metal wire drawing panel and the heat insulation layer is easy to occur, and meanwhile, the low-temperature hot melt glue on the back of the decorative material is easy to be punctured by the thermoplastic resin, to form localized hard spots, particularly in the case of foams having low densities, where high temperature thermoplastic resins are introduced into the foam, and then form an unrecoverable collapse on the surface, forming a waste product, we propose an automotive trim part of an in-mold foaming composite process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile decoration to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: automobile decoration, including the decoration body of soft type sense of touch, the decoration body includes the thermoplastic resin base member, the fixed non-woven fabrics layer that is equipped with on the outer wall of thermoplastic resin base member, the outer wall on non-woven fabrics layer is fixed to be equipped with the cotton layer of foam that can kick-back, fixed being equipped with on the outer wall on the cotton layer of foam that can kick-back and keeping warm the decorations board layer, evenly laid the polyurethane cushion on the decoration body outer wall of soft type sense of touch, it has the fine bubble polyurethane layer to assemble on the outer wall on heat preservation decorations board layer, install metal decking and form metal heat preservation decorative board on the outer wall on fine bubble polyurethane layer.

Preferably, the rebound foam cotton layer is made of cross-linked polyolefin foam materials, and the rebound foam cotton layer is selected to have the thickness of 1 mm-5 mm and the density of 30kg/m³--100kg/m³With a foam material therebetween.

Preferably, the non-woven fabric layer is a non-woven fabric made of hot-melt resin, and the non-woven fabric is a polyethylene terephthalate non-woven fabric with a gram weight of 170 grams per square meter.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a through the selection of laminar material for make goods surface uniformity good, make structure compaction density higher, prevent to form the deformation pit after receiving high temperature, guaranteed the processingquality of product, have comfortable soft sense of touch and good the performance of making an uproar of falling, the bonding steadiness between the structure can prevent effectively that hollowing from appearing between metal decking and the heat preservation plaque layer and warping the problem.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1 thermoplastic resin matrix, 2 non-woven fabrics layers, 3 resilient foam cotton layers, 4 heat preservation veneer layers, 5 polyurethane cushion blocks, 6 micro-foaming polyurethane layers and 7 metal panels.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

The automobile decoration that the compound technology of foaming made in the mould, automobile decoration wherein includes the decoration body of soft type sense of touch, the decoration body includes thermoplastic resin base member 1, fixed being equipped with non-woven fabrics layer 2 on the outer wall of thermoplastic resin base member 1, the outer wall of non-woven fabrics layer 2 is fixed being equipped with the cotton layer of foam 3 that can kick-back, fixed being equipped with on the outer wall of the cotton layer of foam 3 that can kick-back keeps warm and decorates the slab layer 4, evenly laid polyurethane cushion 5 on the decoration body outer wall of soft type sense of touch, it has microcellular foam polyurethane layer 6 to assemble on the outer wall of the slab layer 4 that keeps warm, install metal decking 7 and form metal heat preservation decorative board on the outer wall of microcellular.

The composite process of the automobile decoration comprises the following specific steps:

a: the non-woven fabric layer 2 and the reboundable foam cotton layer 3 are sequentially and pre-flame-compounded into a whole, the non-woven fabric layer 2 and the reboundable foam cotton layer 3 are required to be pre-cut into a shape required by the molding of a casting mold, then the composite body is placed and fixedly assembled in a mold cavity, and then the mold is closed.

B: the thermoplastic resin matrix 1 is pre-molded to form a matrix feedstock and the feedstock is injected into the mold space between the nonwoven layer 2 and the mold cavity or core cavity.

C: after the mould is accomplished, cool off, the die sinking and get the piece, then with the assembly of heat preservation decorative board layer 4 on the cotton layer 3 lateral walls of foam that can kick-back through the buckle joint to paste the dress with the interior decorating film on the outer wall of heat preservation decorative board layer 4, can form the decoration body of soft type sense of touch.

D: when the metal heat-insulation decorative plate needs to be prepared, the metal panel 7 is horizontally placed on a pre-installation platform with a carrier roller, then a plurality of groups of polyurethane cushion blocks 5 with the same structure are uniformly distributed on the surface of the metal panel 7 at intervals, and the metal panel 7 is pushed into a panel preheating drying channel to realize preheating operation.

E: the metal panel 7 preheated by the preheating drying tunnel sequentially passes through a reciprocating type casting machine and a high-density micro-foaming polyurethane casting machine, so that a high-density micro-foaming polyurethane layer 6 is formed on the surface of the metal panel 7, and the thickness of the micro-foaming polyurethane layer 6 is the same as that of the polyurethane cushion block 5.

F: and C, carrying out environment-friendly glue coating treatment on the heat-insulating veneer layer 4 cast in the step C through a PUR hot melt adhesive glue dissolving machine on the premise of not attaching the inner decorative film, then realizing butt joint extrusion on the heat-insulating veneer layer 4 and the micro-foaming polyurethane layer 6, realizing mutual extrusion through the laminating crawler belts arranged at intervals in parallel up and down after the butt joint extrusion, improving the extrusion stability of the heat-insulating veneer layer 4 and the micro-foaming polyurethane layer 6, simultaneously improving the compactness, and finishing the manufacture of the metal heat-insulating decorative plate after cooling.

Wherein the raw material of the thermoplastic resin matrix 1 in step B is a thermoplastic resin which is pre-molded in a predetermined amount, and supercritical nitrogen gas is added to the molten thermoplastic resin in an amount of 1 to 3% by mass of the thermoplastic resin, and the thermoplastic resin and the nitrogen gas are mixed in a supercritical state of the nitrogen gas to form a homogeneous solution.

The rebound foam cotton layer 3 is made of cross-linked polyolefin foam material, and the rebound foam cotton layer 3 is selected to have the thickness of 1 mm-5 mm and the density of 30kg/m³--100kg/m³The foam material can ensure that the formed product has soft hand feeling and has better sound absorption and noise reduction functions.

The non-woven fabric layer 2 is made of hot-melt resin, and the non-woven fabric is made of polyethylene glycol non-woven fabric with the gram weight of 170 grams per square meter, so that melt bonding can be realized with subsequently filled polypropylene copolymer resin filled with glass fiber, and thermoplastic resin melt can be effectively prevented from entering the resilient foam cotton layer 3.

And D, arranging a preheating drying tunnel at the rear part of the pre-installation platform, and uniformly arranging carrier rollers and electric heating pipes at intervals in the lower part of the preheating drying tunnel.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Automobile decoration spare, including the decoration body of soft type sense of touch, its characterized in that: the decoration body includes thermoplastic resin base member (1), the fixed non-woven fabrics layer (2) that is equipped with on the outer wall of thermoplastic resin base member (1), the fixed cotton layer of foam (3) that can kick-back that is equipped with of outer wall of non-woven fabrics layer (2), the fixed heat preservation decorative board layer (4) that is equipped with on the outer wall of the cotton layer of foam (3) that can kick-back, evenly laid polyurethane cushion (5) on the decoration body outer wall of soft type sense of touch, be equipped with on the outer wall of heat preservation decorative board layer (4) little foaming polyurethane layer (6), install metal decking (7) and form metal heat preservation decorative board on the outer wall of little foaming polyurethane layer (6).

2. The automotive trim of claim 1, wherein: the rebound foam cotton layer (3) is made of cross-linked polyolefin foam material, and the rebound foam cotton layer (3) is selected to have the thickness of 1 mm-5 mm and the density of 30kg/m³--100kg/m³With a foam material therebetween.

3. The automotive trim of claim 1, wherein: the non-woven fabric layer (2) is made of hot-melt resin, and the gram weight of the non-woven fabric is 170 grams per square meter.