CN210047530U

CN210047530U - Automobile interior trim part real wood steering wheel

Info

Publication number: CN210047530U
Application number: CN201822073260.8U
Authority: CN
Inventors: 黄若石
Original assignee: KUNSHAN JINYUN NEW MATERIAL TECHNOLOGY Co Ltd
Current assignee: KUNSHAN JINYUN NEW MATERIAL TECHNOLOGY Co Ltd
Priority date: 2018-12-11
Filing date: 2018-12-11
Publication date: 2020-02-11
Anticipated expiration: 2028-12-11

Abstract

The utility model discloses a real wooden steering wheel of automotive interior spare, including steering wheel skeleton, first real wooden shell and the real wooden shell of second, the real wooden shell of first real wooden shell and second can fix and splice into the ring shape siphonozooid, and the steering wheel skeleton just can the holding in this ring shape siphonozooid is internal, the utility model discloses a smash real wood into the saw-dust, then the saw-dust that will sieve mixes with warm water, rubber powder and curing agent and forms the mixture, forms the blank of accurate semicircle ring with mixture hot pressing through the hot pressing mould, has avoided adopting real wood machining, has improved shaping efficiency and shaping precision greatly, has still avoided the condition of real wood fracture to take place, the utility model discloses simple structure, the appearance is pleasing to the eye, and the surface is smooth, feels comfortable, and durable, preparation process green, low in manufacturing cost.

Description

Automobile interior trim part real wood steering wheel

Technical Field

The utility model relates to an automobile decoration, in particular to real wooden steering wheel of automotive interior spare and manufacturing process thereof.

Background

At present, the steering wheel mostly adopts foaming and water transfer printing technology, and its feel is not good, and the travelling comfort of feeling is not good, still produces pollution such as formaldehyde easily, and the outward appearance is pleasing to the eye inadequately, and at present, true wood steering wheel has appeared, and true wood steering wheel outward appearance is pleasing to the eye, the line is natural, comfortable, and good, the environmental protection is pollution-free, and nevertheless there is following difficult point in the preparation of true wood steering wheel:

1. the section of the steering wheel is circular, so that the steering wheel is complex in shape and high in forming difficulty, and the veneer is easy to crack during manufacturing;

2. the base material of the real wood steering wheel is mostly machined by solid wood, so that the cost is high;

3. the spliced bonding part of the real wood steering wheel is easy to crack, and the appearance of the real wood is influenced.

Due to the problems, the manufacturing cost of the real wood steering wheel is high, the production efficiency is low, the service life is short, the real wood steering wheel is easy to damage, flaws are easy to appear on the appearance, and the integral attractiveness is affected.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a real wooden steering wheel of automotive interior spare, this real wooden steering wheel of automotive interior spare preparation process step is simple, green, has improved the production efficiency and the qualification rate of real wooden steering wheel greatly, the cost is reduced, the real wooden steering wheel appearance of automotive interior spare of this technology preparation is pleasing to the eye, green, the difficult fracture of long-term use.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: the utility model provides a real wooden steering wheel of automotive interior spare which characterized in that: the steering wheel frame comprises a steering wheel frame, a first real wood shell and a second real wood shell, wherein the first real wood shell and the second real wood shell can be fixedly spliced into a circular tubular body, and the steering wheel frame can be just contained in the circular tubular body.

As a further improvement, the first real wooden shell and the second real wooden shell are symmetrical semi-circular structures, and the relative plane of the first real wooden shell and the second real wooden shell is respectively provided with a semi-circular groove with a right position.

As the utility model discloses a further improvement, first real wooden shell and the real wooden shell of second all include foamed glue layer, saw-dust shell layer, wooden cortex and paint layer, foamed glue layer, saw-dust shell layer, wooden cortex and paint layer are by the steering wheel in to the fixed range upon range of integrative structure that forms of steering wheel outer order.

As a further improvement of the utility model, the saw-dust shell is for pressing 50 by saw-dust, warm water, rubber powder, curing agent: 10: 20: 1 to form a solid structure formed by hot press molding of the wood chip mixture.

As a further improvement of the utility model, the first real wooden shell and the second real wooden shell are best bonded into an integral structure through the bonding layer.

As a further improvement of the utility model, the paint layer comprises a primer layer and a polyester finish paint layer.

The utility model has the advantages that: the utility model discloses a smash into the saw-dust with real wood, then mix the saw-dust that will sieve with warm water, rubber powder and curing agent and form the mixture, through the blank of hot pressing compound die with the accurate semicircle ring of mixture hot pressing formation, avoided adopting real wood machining, improved shaping efficiency and shaping precision greatly, still avoided the condition of real wood fracture to take place, the utility model discloses simple structure, the appearance is pleasing to the eye, and the surface is smooth, feels comfortable, and is durable, preparation process green, low in manufacturing cost.

Drawings

FIG. 1 is a schematic view of the assembly state of the real wood steering wheel of the present invention;

FIG. 2 is a perspective view of a real wood steering wheel produced by the present invention;

fig. 3 is a sectional view of a-a portion in fig. 2.

Detailed Description

Example (b): the utility model provides a real wooden steering wheel of automotive interior spare, includes steering wheel skeleton 2, first real wooden shell 1 and the real wooden shell of second 3 can fix the concatenation into the ring shape tubulose, and steering wheel skeleton 2 just can the holding in this ring shape tubulose is internal.

The first real wooden shell 1 and the second real wooden shell 3 are of symmetrical semi-circular structures, and semi-circular grooves with opposite positions are formed in the planes of the first real wooden shell 1 and the second real wooden shell 3 respectively.

First real wooden shell 1 and the real wooden shell 3 of second all include foamed glue layer 4, saw-dust shell layer 5, wooden skin layer 6 and paint layer 7, foamed glue layer 4, saw-dust shell layer 5, wooden skin layer 6 and paint layer 7 are by fixed range upon range of integrative structure of formation of steering wheel inside to the steering wheel outer order.

The shell layer 5 of the wood chips is prepared by mixing wood chips, warm water, rubber powder and a curing agent according to the weight ratio of 50: 10: 20: 1 to form a solid structure formed by hot press molding of the wood chip mixture.

The first wood shell 1 and the second wood shell 3 are preferably bonded into an integral structure by an adhesive layer 8.

The paint layer 7 comprises a primer layer and a polyester topcoat layer.

The manufacturing process of the automobile interior trim part real wood steering wheel comprises the following specific steps:

the method comprises the following steps: crushing: crushing real wood into wood chips in a crusher, wherein the wood chips can be formed by crushing a middle poplar board or other real wood boards;

step two: screening: screening the sawdust by using a sieve with holes of 1mm multiplied by 1mm, controlling the humidity of the sawdust to be 6-16%, and ensuring that the sawdust shell which can be given by hot pressing is more compact and has higher strength;

step three: stirring: mixing wood chips, warm water, rubber powder and a curing agent according to the proportion of 50: 10: 20: 1 to form a wood chip mixture, the temperature of warm water is 50 +/-10 ℃, the humidity of the wood chips after stirring is controlled to be 15-20%, and the rubber powder and the curing agent are optimally permanent rubber powder and curing agent;

step four: hot pressing for the first time: placing the stirred sawdust mixture in a hot-pressing mould for hot-pressing forming to form a semicircular sawdust shell, wherein the upper mould temperature and the lower mould temperature of the hot-pressing mould are 135 +/-10 ℃, the hot-pressing time is 300S, and the pressure is 80-90 bar;

step five: and (3) second hot pressing: placing the veneer and the sawdust shell in a hot-pressing die for hot pressing, wherein the veneer is hot-pressed and compounded on the surface of the sawdust shell to form a real veneer shell, the veneer humidity is 20% -30% (preventing the veneer from cracking and affecting the appearance of a product), the temperatures of an upper die and a lower die of the hot-pressing die are 135 +/-10 ℃, the hot-pressing time is 100S, and the pressure is 80-90 bar;

step six: sanding: sanding the bottom end face of the real wood shell by using No. 120 abrasive paper to flatten the bottom end face of the wood shell and ensure that two semi-circular real wood shell products can be butted without gaps;

step seven: groove imitation: fixing the real wood shell on the simulated groove jig, fixedly installing the simulated groove jig provided with the real wood shell on a milling machine, and carrying out simulated groove processing on the real wood piece through the milling machine, wherein the width and the depth of a wood groove on the real wood piece are required to be consistent with those of a die casting of a steering wheel framework 2;

step eight: gluing: coating a layer of adhesive glue on the bottom end faces of two matched real wood shells, coating polyurethane foaming glue in wood grooves of the two matched real wood shells, wherein the adhesive glue is prepared by coating a woodworking adhesive and a curing agent according to the ratio of 100: 15, the glue coating amount of the adhesive is 150 plus 200 g/square meter, the glue coating amount of the polyurethane foaming glue is 260 plus 320 g/square meter, the adhesive is optimally prepared by a carpentry adhesive and a curing agent produced by the Yongte resistant company, and the polyurethane foaming glue is optimally prepared by a polyurethane foaming glue produced by the TITEBOND company of America;

step nine: assembling and bonding: fixing the steering wheel framework 2 on an assembly jig, then assembling the two wood pieces coated with glue on the steering wheel framework 2 by using clips, and ensuring that the bonding positions of the two wood pieces are seamless and dislocation-free during assembly and bonding;

step ten: standing: standing the assembled and bonded steering wheel for more than 12H to ensure that the glue is solidified;

step eleven: grinding: mounting abrasive paper on a disc grinder to polish the surface of a real wood, wherein the surface is required to be smooth without pits, and the splicing part of a steering wheel needs to be polished smoothly;

step twelve: color correction: spraying paint with the color consistent with that of the veneer along the splicing position of the real wood piece by using a 0.2mm spray pen to cover the splicing mark;

step thirteen: spraying paint: spraying paint on the surface of the real wood steering wheel, standing for drying, and spraying the paint, wherein the priming paint is firstly sprayed, the standing is carried out for more than 4H, then the polyester paint is sprayed, and the standing is carried out for 2-4 hours after the polyester paint is sprayed;

fourteen steps: grinding: mounting abrasive paper on a disc grinder to grind the surface of the steering wheel, wherein the surface is required to be smooth and has no pits;

step fifteen: polishing: the product is polished on a polisher (optimally with 3000# wax).

The process method can realize the efficient manufacture of the automobile true wood steering wheel, each process step is simple, the process is green and environment-friendly, the wood skin cracking is avoided, the production efficiency and the qualification rate are greatly improved, and the cost is reduced.

Claims

1. The utility model provides a real wooden steering wheel of automotive interior spare which characterized in that: the steering wheel comprises a steering wheel framework (2), a first real wood shell (1) and a second real wood shell (3), wherein the first real wood shell and the second real wood shell can be fixedly spliced into a circular tubular body, the steering wheel framework can be accommodated in the circular tubular body, the first real wood shell and the second real wood shell respectively comprise a foaming adhesive layer (4), a sawdust shell layer (5), a wood veneer layer (6) and a paint layer (7), and the foaming adhesive layer, the sawdust shell layer, the wood veneer layer and the paint layer are sequentially fixed and stacked from inside to outside of the steering wheel to form an integral structure.

2. The automotive interior real wood steering wheel according to claim 1, wherein: the first real wood shell and the second real wood shell are of symmetrical semi-circular structures, and semi-circular grooves opposite to each other in position are formed in the planes of the first real wood shell and the second real wood shell respectively.

3. The automotive interior real wood steering wheel according to claim 1, wherein: the shell layer of the wood chips is prepared by mixing 50 parts of wood chips, warm water, rubber powder and a curing agent: 10: 20: 1 to form a solid structure formed by hot press molding of the wood chip mixture.

4. The automotive interior real wood steering wheel according to claim 1, wherein: the first real wood shell and the second real wood shell are preferably bonded into an integral structure through a bonding layer (8).

5. The automotive interior real wood steering wheel according to claim 1, wherein: the paint layer includes a primer layer and a polyester topcoat layer.