CN106042586A - Skin covering molding process of automotive interior trim board and automotive interior trim board - Google Patents
Skin covering molding process of automotive interior trim board and automotive interior trim board Download PDFInfo
- Publication number
- CN106042586A CN106042586A CN201610387580.3A CN201610387580A CN106042586A CN 106042586 A CN106042586 A CN 106042586A CN 201610387580 A CN201610387580 A CN 201610387580A CN 106042586 A CN106042586 A CN 106042586A
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- China
- Prior art keywords
- layer
- trim panel
- automotive trim
- fibre board
- fiberboard
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention belongs to the technical field of automotive trims, and discloses a skin covering molding process of an automotive interior trim board. The skin covering molding process comprises the three steps of fiberboard heating, composite fabric preparing and compression covering molding. The skin covering molding process of the automotive interior trim board is simple in step, the interior trim board is formed by compositing a composite fabric with a fiberboard with a hot melt adhesive film layer in a compression molding mode, the fiberboard is heated, after being placed on a lower mold, the discharged fiberboard is in a slightly collapsed state, an upper mold and the lower mold are both cooled by normal-temperature water, and the defect that the fiberboard texture is instable due to the fact that the fiberboard transmits heat to the composite fabric is avoided; in addition, the hot melt adhesive film layer on the surface of the fiberboard can permeate into gaps of the fiberboard after being heated, therefore, the bonding interface area is increased, and the bonding strength is improved. The invention further discloses the automotive interior trim board with the stably-bonded surface layer.
Description
Technical field
The present invention relates to automotive trim panel technical field, be specifically related to the laminating epidermis moulding process of a kind of automotive trim panel
And automotive trim panel.
Background technology
Automotive trim panel, in automobile production, has the perfect effect beautified inner space of vehicle and to function.
Automotive trim panel surface layer fabric of the prior art mostly is composite material, basic composition is top layer, elastic sponge layer, non-woven fabrics or
Woven cloths adhesive linkage, wherein top layer mostly is polrvinyl chloride leather or polyester fabric, superior automobile many employings genuine leather fabric.Traditional dress
Plaque production method is two-step method, the steps include: laminating for plate moulding molding, then with the workpiece shapes artificial hand after molding
Dynamic cladding top layer composite material, needs in above-mentioned technical process to use adhesive, and the use of adhesive can increase the workpiece later stage to be made
The discharge capacity of VOC during with.
The technical scheme production method of passenger car composite internal decorative plate as disclosed in CN 102897108 A improved is concrete
Technical process, removes from office blanking forming including fabric and polrvinyl chloride, and fabric welds with polrvinyl chloride leather, and the substrate of flaxen fiber material becomes
Type, the spraying activation of adhesive, location is compound, and flange is modified, the technical process of adnexa assembling.Above-mentioned location is combined, and is by face
Material is fixed in positioning tool, and composite die matches with positioning tool, and polyurethane bicomponent adhesive is after activation by fabric
With substrate in composite die bonding compound.The processing step of above-mentioned processing step is many, and still comprises the use of adhesive.
Improved plan such as CN 101856891 A, is first combined pre-for PET coating glue film with non-woven fabrics hot pressing further, then by overlay film
Fabric sheet material and glass-fiber-plate or the fine plate of fiber crops stack and are laid in platen heater pressurized, heated to 215 ± 5 DEG C, last PET film
Laminating at top substrate surface together with non-woven fabric.In such scheme, overlay film fabric sheet material needs together to heat with glass-fiber-plate.
Finding in actual production, polrvinyl chloride leather and synthetic fibers woven cloths are unstable at 215 DEG C, easily decomposite hydrogen chloride, occur
The phenomenon that leather surface is aging, and said temperature is also close to the decomposition temperature of polyurethane sponge.It addition, in mold process, due to multiple
Closing and there is air between fabric and sheet material, easily there is foaming phenomena in finished product.Therefore, it is necessary to in automobile of the prior art
Plaque.
Summary of the invention
It is an object of the invention to overcome defect present in prior art, it is provided that the laminating epidermis of a kind of automotive trim panel
Moulding process, by the sheet material raw material using hot melt adhesive film to be connected with fiber crops plate one, and does not directly heats composite material block,
The too high material of heating-up temperature is avoided to decompose the product defects affecting service life.
For realizing above-mentioned technique effect, the technical scheme is that the laminating epidermis molding work of a kind of automotive trim panel
Skill, it is characterised in that comprise the following steps:
S1: fibre board heats, and the fibre board that top layer is hot melt adhesive film layer is heated to 260～280 DEG C, derives fibre board to cold
The lower mold upper end of pressure equipment；
S2: be arranged between fibre board and upper mold by positioning framework by the composite material block corresponding with decorative panel shape is multiple
Close the internal layer hot melt adhesive film layer towards fibre board of fabric；
S3: mold laminating molding, the upper die and lower die pressurization of room temperature water-cooled is compound, and molding pressure is 13～18Mpa, clamp time
It is not less than 50s, obtains automotive trim panel.
This technical scheme use surface be covered with the fibre board of hot melt adhesive film as trim panel base material, after fibre board heating,
The hot melt adhesive film on surface is heated thawing, has solid-state to become the fluid state with certain viscosity, the surface of easy infiltrated fiber plate or
The fiber on top layer is formed cladding, contributes to increasing the bonding interface area between hot melt adhesive film layer and lower floor's sheet material, Jin Erzeng
Add bonding strength.
Preferably technical scheme is that the top layer of composite material is resin bed, the tree relative with the lower convex surface position of upper mold
Drain hole it is provided with in lipid layer.Resin bed compact structure poor air permeability, when the lower convex surface of upper mold and lower mold matched moulds, composite material
And easily accompany bubble between sheet material, drain hole be set and contribute to the discharge of gas between the two, make composite material and sheet material it
Between laminating degree improve, be favorably improved product yield.
Preferably technical scheme is that described drain hole is that acupuncture obtains.Conventional drilling method is laser boring, but swashs
Finding that material there occurs obvious phase transformation in the range of all 200 μm in the hole of light pore-forming, specifically the surface at resin bed stays and burns
Vestige, affects the feel on trim panel surface.Owing to resin bed has certain toughness, after pin is pricked, material has resilience, because of
The aperture of this real income drain hole is much smaller than pricking the working diameter of sewing needle used by hole, and it is left that aperture measured value is only 0.03mm
The right side, can not only reach the purpose of interlayer air emptying, due to the curved surface that water droplet is convex under drain hole is formed after chance water, but due to
The surface tension of water so that under normal pressure, the water transit dose of drain hole is the least the most negligible, it is to avoid water enters in inside gadget and causes
Its mouldy phenomenon.
In order to ensure that aperture is less, and having suitable moment Air permenbility, preferred technical scheme is, acupuncture sewing used
Pin is No. 9 or No. 11, and the density of described drain hole is 100～180 hole/m2。
Preferably technical scheme is, fibre board is that the needle punched felt compacting as main component forms with principal fibers and auxiliary fiber
, principal fibers is flaxen fiber or glass, and auxiliary fiber is polypropylene fibre and/or modified polypropylene fiber, and resin bed is PVC leather layer
Or PU removes from office layer.Resin bed can also select other to have the resin molding of certain thickness and rebound performance.
Preferably technical scheme is, mainly comprising as PE PUR, PP PUR and APAO heat of described hot melt adhesive film layer
One in melten gel.Flaxen fiber belongs to hydrophilic fibers, and the waterproof seal of PE PUR, PP PUR and APAO PUR is strong,
Film property is excellent, is overlying on fibreboard surface, it is possible to decrease the fibre board containing flaxen fiber absorbs in surrounding air in process of production
Steam vapour amount, reduce fibre board the probability that goes mouldy.It addition, the fusion temperature of above-mentioned three kinds of PURs is relatively low, with cold before matched moulds
Air around pressure equipment carries out heat exchange and the temperature of fibreboard surface can be caused to drastically reduce, and therefore select to tell somebody what one's real intentions are melt temperature
PUR be more conducive to ensure and composite material between adhesive strength.
The present invention also aims to provide a kind of automotive trim panel, it is characterised in that include answering of stacking one connection
Closing fabric and fibre board, fibre board includes hot melt adhesive film layer and substrate layer, and the internal layer of composite material passes through hot melt adhesive film layer and base
Flaggy compound sticking.
Preferably technical scheme is that composite material includes top layer, spongy layer and internal layer the most successively, and internal layer is nonwoven
Layer of cloth or woven cloths；Described top layer is woven cloths, or is resin bed, or by resin bed and woven cloths or non-weaving cloth compound and
Become.
Preferably technical scheme is that automotive trim panel is solid figure, and automotive trim panel comprises the notch board that surface caves inward
Portion, the resin bed on surface, notch board portion is provided with drain hole.
Advantages of the present invention and having the beneficial effects that:
The laminating epidermis moulding process step of this automotive trim panel is simple, and trim panel is by composite material and has hot melt adhesive film layer
Fibre board molds and is composited, and by fibre board is carried out heat treated, after the fibre board of discharging is placed in lower mold, sheet material is little
Width collapsed position, upper mold lower mold all uses room temperature water-cooled, it is to avoid fibre board causes unstable the lacking of material to composite material heat transfer
Fall into, it addition, sheet material gap can be penetrated into after the hot melt adhesive film layer heating of fibreboard surface, be conducive to increasing bonding interface area with viscous
Connect intensity.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of automotive trim panel embodiment 1 of the present invention；
Fig. 2 is the structural representation of automotive trim panel embodiment 5 of the present invention.
In figure: 1, composite material；11, top layer；12, spongy layer；13, internal layer；2, fibre board；21, substrate layer；22, hot melt
Adhesive film；3, drain hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is further described.Following example are only used for
Technical scheme is clearly described, and can not limit the scope of the invention with this.
Embodiment 1
As it is shown in figure 1, the automotive trim panel composite material 1 of embodiment 1 includes top layer 11 machine-woven fabric layer, spongy layer from outside to inside
12, internal layer 13 nonwoven layer；The substrate 21 of fibre board 2 is the needle punched felt compacting as main component with glass and polypropylene fibre
, hot melt adhesive film layer 22 is reaction type polyurethane hot-melt adhesive, and hot melt adhesive film layer thickness is 0.2mm.
The compound epidermis moulding process of embodiment 1 is: comprise the following steps:
S1: fibre board heats, and the fibre board that top layer is hot melt adhesive film layer is heated to 260 DEG C, and programming rate is 1.2～2 DEG C/s,
Fibre board is derived the lower mold upper end to cold pressing device；
S2: be arranged between fibre board and upper mold by positioning framework by the composite material block corresponding with decorative panel shape is multiple
Close the internal layer hot melt adhesive film layer towards fibre board of fabric；
S3: mold laminating molding, the upper die and lower die pressurization of room temperature water-cooled is compound, and molding pressure is 13Mpa, clamp time 80s,
Obtain automotive trim panel.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1: in embodiment 2, automotive trim panel composite material includes Flocked fabric from outside to inside
Layer, spongy layer, woven cloths；Fibre board is that the needle punched felt compacting as main component forms with flaxen fiber and modified polypropylene fiber
's.Modified polypropene in this embodiment is to add the polypropylene fibre that the polypropylene matrix resin-made of cellulose whiskers enhancing obtains
Dimension.Hot melt adhesive film layer is APAO PUR, and film thickness is same as in Example 1.
Embodiment 2 technical process is distinguished as with embodiment 1: in S1, fibre board is heated to 280 DEG C；In S3, molding pressure is
13Mpa, clamp time 80s.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1: in embodiment 3, automotive trim panel composite material includes polychlorostyrene second from outside to inside
Alkene layer, the machine-woven fabric layer as polyvinyl chloride layer skeleton, nonwoven layer；Fibre board be with flaxen fiber and polypropylene fibre be main
The needle punched felt compacting of composition.Hot melt adhesive film layer is PP PUR, and film thickness is same as in Example 1.
Embodiment 3 technical process is distinguished as with embodiment 1: in S1, fibre board is heated to 270 DEG C；Molding pressure in S3
For 15Mpa, clamp time 65s.
Comparative example 1
The composite fabric structure of comparative example 1 and fibre board composition are same as in Example 3, and difference is in S1 that fibre board is heated to
250℃；In S3, molding pressure and time are same as in Example 3.
Comparative example 2
In composite fabric structure, fibre board composition and S1 in comparative example 2, heating-up temperature is same as in Example 3, and difference is S3
Middle molding pressure is 11Mpa, clamp time 40s.
The mould that embodiment 1-3 and comparative example 1-2 use is pressed into plate shaped trim panel.
The Adhesion property test of sample:
With SMTC5400 022-2010(V1) for test foundation, sampling size 50mm * 200mm, the material being stripped with
The test speed of 100mm/min, the angle taking 90 ° is taken off till the length of 150mm from carrier material, calculates according to method
Sample adhesion strength, test result see table:
| Embodiment | Result of the test |
| Embodiment 1 | Peeling force between base material and composite bed: 42.6 N/50mm |
| Embodiment 2 | Peeling force between base material and composite bed: 45.3 N/50mm |
| Embodiment 3 | Peeling force between base material and composite bed: 46N/50mm |
| Comparative example 1 | Peeling force between base material and composite bed: 40.5 N/50mm |
| Comparative example 2 | Peeling force between base material and composite bed: 37.4 N/50mm |
Embodiment 4
Based on embodiment 3, difference is that the top layer of composite material is PU leather, is PU layer and woven cloths is composited, PUR
Film layer is PE PUR, and embodiment 4 uses laser boring, the aperture of gained drain hole 3 to be 0.03mm, and pore size distribution density is 90
Hole/m2.
Embodiment 5
As in figure 2 it is shown, based on embodiment 4, embodiment 5 uses acupuncture to punch, sewing needle used is No. 9 pins, molds laminating rear interior
The drain hole average diameter on plaque surface is 0.03～0.04mm, and pore size distribution density is 100 hole/m2。
Embodiment 6
Embodiment 6 is distinguished as with embodiment 5, and sewing needle used is No. 11 pins, molds the drain hole 3 on laminating rear trim panel surface
Average pore size is 0.04～0.05mm, and pore size distribution density is 180 hole/m2。
Amplifying observation embodiment 4 laser gained micropore and embodiment 5 acupuncture gained vacuum epidermal shape, the hole of embodiment 4
Occurring in week substantially burning phenomenon, at micropore, feel is clearly distinguished from, and the aperture of embodiment 5 is slightly below PU and removes from office surface, aperture in
Inversed taper platform shape, feel indistinction at drain hole.
Using the trim panel upper and lower mould of three-dimensional shape, with the sheet material of embodiment 3-6 as raw material, other technological parameters are with implementing
Example 3, is passed through room temperature cooling water in upper and lower mould, upper mold downstream rate is 300mm/s, process variables in comparative example 3-6
The impact of smooth docile degree laminating on epidermis:
| Embodiment | The laminating result of epidermis |
| Embodiment 3 | Obvious bubbling, epidermis poor flatness at this is there is at convex surface under inside gadget |
| Embodiment 4 | Surfacing, has pin hole of significantly burning |
| Embodiment 5 | Surfacing, has no obvious pin hole |
| Embodiment 6 | Surfacing, can find discovery pin hole |
The increase in the work aperture of sewing needle, directly results in pinhole aperture and increases, can increase the permeable amount on top layer, is unfavorable for keeping
Under top layer, spongy layer is dry, increases the probability gone mouldy in trim panel.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvements and modifications, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (9)
1. the laminating epidermis moulding process of an automotive trim panel, it is characterised in that comprise the following steps:
S1: fibre board heats, and the fibre board that top layer is hot melt adhesive film layer is heated to 260～280 DEG C, derives fibre board to cold
The lower mold upper end of pressure equipment；
S2: be arranged between fibre board and upper mold by positioning framework by the composite material block corresponding with decorative panel shape is multiple
Close the internal layer hot melt adhesive film layer towards fibre board of fabric；
S3: mold laminating molding, the upper die and lower die pressurization of room temperature water-cooled is compound, and molding pressure is 13～18Mpa, clamp time
It is not less than 50s, obtains automotive trim panel.
The laminating epidermis moulding process of automotive trim panel the most according to claim 1, it is characterised in that the table of composite material
Layer is resin bed, and the resin bed relative with the lower convex surface position of upper mold is provided with drain hole.
The laminating epidermis moulding process of automotive trim panel the most according to claim 2, it is characterised in that described drain hole is
Acupuncture obtains.
The laminating epidermis moulding process of automotive trim panel the most according to claim 3, it is characterised in that acupuncture sewing used
Pin is No. 9 or No. 11, and the density of described drain hole is 100～180 hole/m2。
The laminating epidermis moulding process of automotive trim panel the most according to claim 1, it is characterised in that fibre board is with master
Fiber and the needle punched felt that auxiliary fiber is main component are suppressed, and principal fibers is flaxen fiber or glass, and auxiliary fiber is poly-third
Alkene fiber and/or modified polypropylene fiber, resin bed is PVC leather layer or PU leather layer.
The laminating epidermis moulding process of automotive trim panel the most according to claim 5, it is characterised in that described hot melt adhesive film
Mainly comprising as the one in PE PUR, PP PUR and APAO PUR of layer.
7. an automotive trim panel, it is characterised in that including composite material and the fibre board of stacking one connection, fibre board includes
Hot melt adhesive film layer and substrate layer, the internal layer of composite material is by hot melt adhesive film layer and substrate layer compound sticking.
Automotive trim panel the most according to claim 7, it is characterised in that composite material include the most successively top layer,
Spongy layer and internal layer, internal layer is nonwoven layer or woven cloths；Described top layer is woven cloths, or is resin bed, or by resin bed with
Woven cloths or non-weaving cloth are composited.
Automotive trim panel the most according to claim 8, it is characterised in that automotive trim panel is solid figure, automotive trim panel
Comprise the notch board portion that surface caves inward, the resin bed on surface, notch board portion is provided with drain hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387580.3A CN106042586A (en) | 2016-06-03 | 2016-06-03 | Skin covering molding process of automotive interior trim board and automotive interior trim board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610387580.3A CN106042586A (en) | 2016-06-03 | 2016-06-03 | Skin covering molding process of automotive interior trim board and automotive interior trim board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106042586A true CN106042586A (en) | 2016-10-26 |
Family
ID=57173212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610387580.3A Pending CN106042586A (en) | 2016-06-03 | 2016-06-03 | Skin covering molding process of automotive interior trim board and automotive interior trim board |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943746A (en) * | 2018-09-05 | 2018-12-07 | 江苏铁锚明信交通科技有限公司 | The automatic equipment complex of automobile skylight sun-shield |
| CN109050431A (en) * | 2018-10-29 | 2018-12-21 | 何山 | A kind of preparation method and automobile interior decoration of environment-friendly type automobile inner decoration |
| CN110104004A (en) * | 2019-03-25 | 2019-08-09 | 中车唐山机车车辆有限公司 | A kind of light weight environment-friendly type bullet train side wall panel and preparation method |
| CN110104006A (en) * | 2019-03-25 | 2019-08-09 | 中车唐山机车车辆有限公司 | Top plate and preparation method thereof in a kind of light weight environment-friendly type bullet train |
| CN110126862A (en) * | 2019-03-25 | 2019-08-16 | 江阴延利汽车饰件股份有限公司 | A kind of light weight environment-friendly type side top boards of high-speed train and preparation method |
| CN112757668A (en) * | 2019-11-02 | 2021-05-07 | 北京服装学院 | Recycling of plant fiber and novel fabric preparation method thereof |
| CN114474877A (en) * | 2021-12-30 | 2022-05-13 | 上海通领汽车科技股份有限公司 | Production method of film-coated interior trim part and film-coated interior trim part |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943746A (en) * | 2018-09-05 | 2018-12-07 | 江苏铁锚明信交通科技有限公司 | The automatic equipment complex of automobile skylight sun-shield |
| CN108943746B (en) * | 2018-09-05 | 2023-05-26 | 江苏铁锚玻璃股份有限公司 | Automatic composite equipment for sun shield of automobile sunroof |
| CN109050431A (en) * | 2018-10-29 | 2018-12-21 | 何山 | A kind of preparation method and automobile interior decoration of environment-friendly type automobile inner decoration |
| CN109050431B (en) * | 2018-10-29 | 2022-02-01 | 何山 | Preparation method of environment-friendly automotive interior and automotive interior |
| CN110104004A (en) * | 2019-03-25 | 2019-08-09 | 中车唐山机车车辆有限公司 | A kind of light weight environment-friendly type bullet train side wall panel and preparation method |
| CN110104006A (en) * | 2019-03-25 | 2019-08-09 | 中车唐山机车车辆有限公司 | Top plate and preparation method thereof in a kind of light weight environment-friendly type bullet train |
| CN110126862A (en) * | 2019-03-25 | 2019-08-16 | 江阴延利汽车饰件股份有限公司 | A kind of light weight environment-friendly type side top boards of high-speed train and preparation method |
| CN112757668A (en) * | 2019-11-02 | 2021-05-07 | 北京服装学院 | Recycling of plant fiber and novel fabric preparation method thereof |
| CN114474877A (en) * | 2021-12-30 | 2022-05-13 | 上海通领汽车科技股份有限公司 | Production method of film-coated interior trim part and film-coated interior trim part |
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Application publication date: 20161026 |