CN204821241U - Carpet for automobile with sound performance is inhaled to height - Google Patents
Carpet for automobile with sound performance is inhaled to height Download PDFInfo
- Publication number
- CN204821241U CN204821241U CN201520434074.6U CN201520434074U CN204821241U CN 204821241 U CN204821241 U CN 204821241U CN 201520434074 U CN201520434074 U CN 201520434074U CN 204821241 U CN204821241 U CN 204821241U
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- China
- Prior art keywords
- sound
- carpet
- automobile
- pad
- absorption
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a carpet for automobile with sound performance is inhaled to height, the carpet forms by inhaling the sound pad, inhale sound foam complex from last base blanket, adhesive linkage, complex down, the compound mixed combined material pad of making of polyester fiber of inhaling the cotton fiber peacekeeping 70% of sound pad adoption 30%, the cotton fiber dimension still has the hole after toasting the shaping like this, and the requirement of dacron material on product strength also can be guaranteed to the increase absorption, simultaneously, each layer adopts certain density ratio to the assurance reaches optimalizing absorbing effect.
Description
Technical field
The utility model belongs to textiles manufacturing technology, is specifically related to a kind of carpet for automobile.
Background technology
Carpet for automobile is one of sound absorption interior trimming parts in sedan car, is normally arranged in car on floor, installs two row's seats above.The radical function of carpet for automobile has: 1. hide panel beating in car, plays decoration function.2. absorb the reverberant sound in car, promote tonequality.3. intercept and pass the noise of coming from bottom panel beating.4. automobile vibrations are in the process of moving reduced.5. pin is stepped on carpet, can feel comfortably cool.6. the thermal source of car outside is intercepted.
Basic demand for the material of carpet for automobile is can be shaping, good manufacturability, and shaped article is without breakage; Can have sound absorption properties preferably; Good resistance to abrasion can be had.
The sound absorbing mechanism that carpet for automobile adopts is the hole utilizing material internal to have connection small in a large number, and sound wave can go deep into material internal along these holes, with material generation rubbing effect, acoustic energy is converted into heat energy, reaches sound-absorbing effect.
What existing sedan carpet material adopted is multiple film base blanket, it adopts terylene base blanket as surface, polyethylene is adhesive linkage, one deck terylene baffle blanket, bottom is the carpet of PUR sound-absorbing foam, this structure, and its interlayer terylene baffle blanket is after baking molding, material can become finer and close, causes absorption to reduce.The absorption of this structural materials is shown in Fig. 1, and according to the test data analysis of Fig. 1, the absorption of material is lower, and take advantage of the sound of words of having an informal discussion relatively to sound just unclear in car, traveling comfort is lower.
Summary of the invention
The phenomenon of absorption deficiency is there is for prior art, the purpose of this utility model is to provide a kind of carpet for automobile with high sound absorption qualities, adopt the sound-absorbing material of certain density proportioning and porosity high acoustic absorption coefficient, and optimize the preparation of composite sound-absorbing pad, thus improve the sound absorption qualities of carpet.
The technical solution of the utility model is as follows:
Have a carpet for automobile for high sound absorption qualities, it is composited by base blanket from top to bottom, adhesive linkage, composite sound-absorbing pad, sound-absorbing foam; Described composite sound-absorbing pad adopts polyester-cotton blend composite wood backing strap, the cotton fiber of the weight ratio 30% of polyester-cotton blend composite material and the polyster fibre mixing of 70%.
The density of described base blanket is 650g/m
2, the density of adhesive linkage is 300g/m
2, composite sound-absorbing pad cotton fiber density be 195g/m
2, polyster fibre density is 455g/m
2, the density of sound-absorbing foam is 50kg/m
3.
The utility model have employed the sound-absorbing pad that the cotton fiber of 30% and the polyster fibre of 70% are mixed, and still has hole after such cotton fiber baking molding, increases absorption, also can ensure the requirement of terylene material on product strength; Meanwhile, each layer adopts preferred density proportioning, could effectively ensure to reach optimum sound-absorbing effect.
The utility model has the following advantages:
1, coefficient of sound-absorption increases, can reverberant sound in more absorption cars, and riding comfortableness improves.
2, optimize the preparation of composite sound-absorbing pad, product forming technique is better, and product is neither too hard, nor too soft, and entrucking is easy, and entrucking more can effectively coordinate with associated part, and defening effect is better.
3, in car, the clear degree of voice improves, and people is sitting in car and talks, and can not feel smudgy, and riding comfortableness improves.
When 4, putting the music on, sound is melodious, true, natural, promotes tonequality.
Accompanying drawing explanation
The sound absorption spirogram of Fig. 1 prior art products material.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is sound-absorbing blanket of the present utility model and existing carpet material absorption comparison diagram.
Detailed description of the invention:
Structure of the present utility model is further illustrated below in conjunction with accompanying drawing:
See diagram 2, this carpet for automobile includes terylene base blanket 1, PE adhesive linkage 2, cotton and terylene composite sound-absorbing felt 3 and sound-absorbing foam 4 compound from top to bottom.Wherein the density of terylene base blanket 1 is 650g/m
2, the density of PE adhesive linkage 2 is 300g/m
2, the polyester-cotton blend composite material that composite sound-absorbing pad 3 adopts the cotton fiber of 30% and the polyster fibre of 70% to be mixed, cotton fiber density is 195g/m
2,polyster fibre density is 455g/m
2, sound-absorbing foam adopts PUR foam, and density is 50kg/m
3.
This high acoustic absorption material and existing traditional carpet material absorption contrast, and as can be seen from Figure 3, high acoustic absorption material is higher than existing conventional art material absorption.
the method for making of above-mentioned carpet is as follows
One, the making (structure is shown in diagram 2) of material
1, the terylene base blanket 650g/m of outsourcing ground floor
2(terylene base blanket 1).
2, the material (high acoustic absorption Material cladding sound-absorbing pad 3) of third layer is made
1. cotton fiber, polyester fiber material respectively by weight 30% and 70%(wherein in polyester fiber material low-melting fiber account for 40%) ratio metering.If low-melting fiber is too much, material is really up to the mark, impact sound absorption.Cotton fiber exceeds 50%, and product is excessively soft, and formed product effect is poor.
2. the material of stoichiometry is put into cotton blender machine, stir, object is that material is fully mixed.Material mixing is uneven, causes product local partially soft or partially hard, affects entrucking and sound absorption.
3. by unclogging and readjusting machine, formed netted.
4. by arranging needing machine, be felted by reticular fibre acupuncture more.Acupuncture is not tight, the easy layering of material.
5. by heated oven, felt Baking out is shaped.
6. felt is wound into coiled material.
3, by the bonding compound of second layer PE adhesive linkage 2 by ground floor and third layer
1. ground floor terylene base blanket and third layer Material cladding sound-absorbing pad 3 are placed on the winding up roller on coating machine two limit respectively.
2., after PE sizing material being passed through heating, the hot melt adhesive of flow-like is formed.Base blanket and baffle blanket by the spreading of hot-rolling compound, are combined into one by the hot melt adhesive of flow-like between the base blanket and third layer baffle blanket of ground floor, the one deck namely in Fig. 3, two layers and trilaminate material.
Two, the making of carpet finished product
1, by above-mentioned composite carpet material after baking oven baking is softening, put into forming mould and suppress cooling forming.
2, molding semi product cutting hole and limit.
3, the 4th layer of (sound-absorbing foam 4) bottom PUR foams: release agent spraying in foaming mould → pour in the fill orifice of foaming mould PUR foamed material → after certain hour, and the slaking of PUR foam is shaping → demoulding, take out foam-formed of PUR.
4, foam-formed of PUR is placed in integrated positioning frock, periphery gluing, and carpet is placed on foam, is pasted with it, become carpet product by certain cylinder pressure.
Claims (2)
1. there is a carpet for automobile for high sound absorption qualities, it is characterized in that: it is composited by base blanket from top to bottom, adhesive linkage, composite sound-absorbing pad, sound-absorbing foam; Described composite sound-absorbing pad adopts polyester-cotton blend composite wood backing strap.
2. the carpet for automobile with high sound absorption qualities according to claim 1, is characterized in that: described base blanket adopts terylene base blanket, and adhesive linkage adopts PE adhesive linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434074.6U CN204821241U (en) | 2015-06-23 | 2015-06-23 | Carpet for automobile with sound performance is inhaled to height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434074.6U CN204821241U (en) | 2015-06-23 | 2015-06-23 | Carpet for automobile with sound performance is inhaled to height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204821241U true CN204821241U (en) | 2015-12-02 |
Family
ID=54678872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434074.6U Expired - Fee Related CN204821241U (en) | 2015-06-23 | 2015-06-23 | Carpet for automobile with sound performance is inhaled to height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204821241U (en) |
-
2015
- 2015-06-23 CN CN201520434074.6U patent/CN204821241U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |