CN207241041U - A kind of new passage back veneer acoustical cotton - Google Patents

A kind of new passage back veneer acoustical cotton Download PDF

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Publication number
CN207241041U
CN207241041U CN201720951327.6U CN201720951327U CN207241041U CN 207241041 U CN207241041 U CN 207241041U CN 201720951327 U CN201720951327 U CN 201720951327U CN 207241041 U CN207241041 U CN 207241041U
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CN
China
Prior art keywords
layer
sound
cotton
veneer
hole
Prior art date
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
Application number
CN201720951327.6U
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Chinese (zh)
Inventor
王皆晴
何卫军
李超
李峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hubei God's Will Noise Reduction Vibrationproof New Material Co Ltd
Original Assignee
Hubei God's Will Noise Reduction Vibrationproof New Material Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hubei God's Will Noise Reduction Vibrationproof New Material Co Ltd filed Critical Hubei God's Will Noise Reduction Vibrationproof New Material Co Ltd
Priority to CN201720951327.6U priority Critical patent/CN207241041U/en
Application granted granted Critical
Publication of CN207241041U publication Critical patent/CN207241041U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of new passage back veneer acoustical cotton,The passage back veneer acoustical cotton includes cotton core,Circular through hole,Two-sided edge sealing,Square through hole,Square groove,Round bottom groove,Pointed groove,Outer sound absorbing layer,Middle sound absorbing layer,First sound-absorbing internal layer and the second sound-absorbing internal layer,The center upper position partially of the cotton core offers circular through hole,The center lower position partially of the cotton core is installed with square through hole,The cotton core,The outer edge of circular through hole and square through hole is designed as two-sided edge sealing,Portion on the upper side offers square groove on the right side of the cotton core,Round bottom groove is offered on the upside of the cotton core,The cotton core left lower offers pointed groove,The new passage back veneer acoustical cotton light weight of the utility model,Material mixture ratio science,Sound-absorbing effect and performance are good,Can be decorative strong,It is easy to process to fold cutter,Improve the work efficiency of processing,Use green material,Reduce pollution,Improve environmental-protection function,Easy to the recycling of acoustical cotton.

Description

A kind of new passage back veneer acoustical cotton
Technical field
It the utility model is related to sound-absorbing material technical field, and in particular to a kind of new passage back veneer acoustical cotton.
Background technology
As social progress and people's level of consumption are continuously improved, client is for automobile acoustical absorption sound insulation, lightweight, comfortable Also requiring for degree etc. is higher and higher.Traditional PET (polyethylene terephthalate)/PP (polypropylene) two-component acoustical cotton It is widely applied in auto sound, noise reduction field, is greatly improved vehicle NVH performances.However, PET polyester fibers are Chemical synthetic fiber fusing point height (more than 250 DEG C), degraded are difficult so that traditional PET/PP two-components sound-absorbing cotton products sealing edge die Temperature is high.Meanwhile the recycling of PET/PP two-component acoustical cottons leftover bits is difficult.
Existing automobile using noise elimination felt cotton, has noise reduction, fire prevention, shockproof, heat-insulated etc., but erasure effect does not still reach Expected effect, shockproof and heat insulation is nor very well, hardness is inadequate, therefore directly affects the service life of product, now Some car ambient radiations are larger, it is easy to which human body is damaged.
Utility model content
To solve the above problems, the utility model proposes a kind of new passage back veneer acoustical cotton.
To realize the utility model aim, the technical solution of use is:A kind of new passage back veneer acoustical cotton, the passage Back veneer acoustical cotton include cotton core, circular through hole, two-sided edge sealing, square through hole, square groove, round bottom groove, pointed groove, Outer sound absorbing layer, middle sound absorbing layer, the first sound-absorbing internal layer and the second sound-absorbing internal layer, the center upper position partially of the cotton core offer circle Shape through hole, the center lower position partially of the cotton core are installed with square through hole, the cotton core, circular through hole and square The outer edge of through hole is designed as two-sided edge sealing, and portion on the upper side offers square groove on the right side of the cotton core, is opened on the upside of the cotton core Equipped with round bottom groove, the cotton core left lower offers pointed groove, the arranged stacked of the cotton core be designed as outer sound absorbing layer, Middle sound absorbing layer, the first sound-absorbing internal layer, the second sound-absorbing internal layer, the stacking successively from top to bottom of middle sound absorbing layer and outer sound absorbing layer.
Preferably, the outer sound absorbing layer is designed as thick jute fiber plaiting article nonwoven fabric layer, and the thickness of thick jute fiber plaiting article nonwoven fabric layer is designed as 0.5~ 1.5mm。
Preferably, the middle sound absorbing layer is designed as mine asbestos fibre layer, and the thickness of mine asbestos fibre layer is designed as 2~ 3mm, mine asbestos fibre layer are specially a kind of platy structure of regular arrangement.
Preferably, the first sound-absorbing internal layer is designed as cellular rubber layer, and the thickness of cellular rubber layer is designed as 2~5mm, Cellular rubber layer is specifically configured to irregular porous laminated structure.
Preferably, the second sound-absorbing internal layer is designed as polypropylene plastics fibrous layer, the thickness of polypropylene plastics fibrous layer 2~5mm is designed as, well-regulated oblique through-hole structure is opened up on polypropylene plastics fibrous layer.
Preferably, the width design of the two-sided edge sealing is 2~3mm, and thickness is designed as 0.5~1.5mm.
Preferably, the back side of the cotton core is compounded with 2~5 pieces of polypropylene plastics blocks, wherein, the polypropylene plastics block The mode being welded on metal plate is ultrasonic welding method.
Preferably, the preparation method of the cotton core is as follows:
The first step:Polypropylene plastics is put into spraying fusing machine and is heated and spinneret, prepares the poly- of a diameter of 2~5um Acrylic plastic fiber, polypropylene plastics fiber is built in the second sound-absorbing for the plate profile structure containing regular oblique through-hole structure Layer, the second sound-absorbing internal layer is compounded in by the first sound-absorbing internal layer of the cellular rubber layer for being specifically configured to irregular porous laminated structure Upper surface;
Second step:The mine asbestos fibre layer of regular arrangement platy structure is compounded in the first sound-absorbing internal layer using adhesive Upper surface and the second sound-absorbing internal layer lower face, the soft middle sound absorbing layer with micro- cavernous structure is made in micro- force;
3rd step:It is bonded with the thick jute fiber plaiting article nonwoven fabric layer of outer sound absorbing layer respectively in the upper surface of middle sound absorbing layer and lower face, makes With the folding cutter for folding the 3mm thickness on sealing knife mould into line misregistration edge sealing;
4th step:After cutter height is set, the cotton core after folding cutter edge sealing is carried out using continuous punching machine Discontinuously hob, punch and moulding process processing, obtain complete acoustical cotton.
The beneficial effects of the utility model are:Rational raw material choosing in the new passage back veneer acoustical cotton of the utility model Select, rational raw material ratio, obtained new passage back veneer acoustical cotton light weight, sound-absorbing effect and performance are good, can decorate Property it is strong, it is easy to process, using the two-sided edge sealing of cutter is folded, add its aesthetic appearance of acoustical cotton by improving the work effect of processing Rate, using green material, reduces pollution, improves environmental-protection function, and easy to the recycling of acoustical cotton, having catered to market needs Will, optimize technological design and production.
Brief description of the drawings
Fig. 1 is the new passage back veneer acoustical cotton structure diagram of the utility model.
Fig. 2 is the new passage back veneer acoustical cotton endothecium structure schematic diagram of the utility model.
In figure:1st, cotton core;2nd, circular through hole;3rd, two-sided edge sealing;4th, square through hole;5th, square groove;6th, round bottom is recessed Groove;7th, pointed groove;8th, outer sound absorbing layer;9th, middle sound absorbing layer;10th, the first sound-absorbing internal layer;11st, the second sound-absorbing internal layer.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig.1 shown in -2, the utility model provides a kind of technical solution:A kind of new passage back veneer acoustical cotton, institute It is recessed including cotton core 1, circular through hole 2, two-sided edge sealing 3, square through hole 4, square groove 5, round bottom to state passage back veneer acoustical cotton Groove 6, pointed groove 7, outer sound absorbing layer 8, middle sound absorbing layer 9, the first sound-absorbing internal layer 10 and the second sound-absorbing internal layer 11, the cotton core 1 Central upper position partially offers circular through hole 2, and the center lower position partially of the cotton core 1 is installed with square through hole 4, The outer edge of the cotton core 1, circular through hole 2 and square through hole 4 is designed as two-sided edge sealing 3, the right side of cotton core 1 portion on the upper side Square groove 5 is offered, the upside of cotton core 1 offers round bottom groove 6, and 1 left lower of cotton core offers pointed groove 7, the arranged stacked of the cotton core 1 be designed as outer sound absorbing layer 8, middle sound absorbing layer 9, the first sound-absorbing internal layer 10, the second sound-absorbing internal layer 11, The stacking successively from top to bottom of middle sound absorbing layer 9 and outer sound absorbing layer 8.
Further, the outer sound absorbing layer 8 is designed as thick jute fiber plaiting article nonwoven fabric layer, and the thickness of thick jute fiber plaiting article nonwoven fabric layer is designed as 0.5 ~1.5mm.
Further, the middle sound absorbing layer 9 is designed as mine asbestos fibre layer, and the thickness of mine asbestos fibre layer is designed as 2~3mm, mine asbestos fibre layer are specially a kind of platy structure of regular arrangement.
Further, the first sound-absorbing internal layer 10 is designed as cellular rubber layer, and the thickness of cellular rubber layer is designed as 2~ 5mm, cellular rubber layer are specifically configured to irregular porous laminated structure.
Further, the second sound-absorbing internal layer 11 is designed as polypropylene plastics fibrous layer, polypropylene plastics fibrous layer Thickness is designed as 2~5mm, and well-regulated oblique through-hole structure is opened up on polypropylene plastics fibrous layer.
Further, the width design of the two-sided edge sealing 3 is 2~3mm, and thickness is designed as 0.5~1.5mm.
Further, the back side of the cotton core 1 is compounded with 2~5 pieces of polypropylene plastics blocks, wherein, the polypropylene plastics Expect that mode of the block welding on metal plate is ultrasonic welding method.
Further, the preparation method of the cotton core 1 is as follows:
The first step:Polypropylene plastics is put into spraying fusing machine and is heated and spinneret, prepares the poly- of a diameter of 2~5um Acrylic plastic fiber, polypropylene plastics fiber is built as the second sound-absorbing internal layer containing the regular tiltedly plate profile structure of through-hole structure 11, the first sound-absorbing internal layer 10 of the cellular rubber layer for being specifically configured to irregular porous laminated structure is compounded in the second sound-absorbing The upper surface of layer 11;
Second step:The mine asbestos fibre layer of regular arrangement platy structure is compounded in the first sound-absorbing internal layer using adhesive The soft middle sound absorbing layer 9 with micro- cavernous structure is made in 11 lower face of 10 upper surface and the second sound-absorbing internal layer, micro- force;
3rd step:It is bonded with the thick jute fiber plaiting article nonwoven fabric layer of outer sound absorbing layer 8 respectively in the upper surface of middle sound absorbing layer 9 and lower face, Using the folding cutter for folding the 3mm thickness on sealing knife mould into line misregistration edge sealing;
4th step:After cutter height is set, the cotton core 1 after folding cutter edge sealing is carried out using continuous punching machine Discontinuously hob, punch and moulding process processing, obtain complete acoustical cotton.
Embodiment 2
A kind of new passage back veneer acoustical cotton, difference lies in the first sound-absorbing internal layer 10 uses the present embodiment with embodiment 1 Algae fiber is uniformly laid with compressing be made.
Algae obtains the algae fiber of white, algae fiber and cellular rubber by draining and drying Layer has same excellent sound absorption function.
Embodiment 3
A kind of new passage back veneer acoustical cotton, difference lies in the first sound-absorbing internal layer 10 uses the present embodiment with embodiment 1 Silicon rubber foam plastic material is made.
Silicon rubber plastics high-temperature digestion cools down rapidly after being passed through inert gas for liquid, and bubble structure is contained in inside, obtains Silicon rubber foam plastics, silicon rubber foam plastics have same excellent sound absorption function with cellular rubber layer.
Embodiment 4
A kind of new passage back veneer acoustical cotton, difference lies in the first sound-absorbing internal layer 10 uses the present embodiment with embodiment 1 Polylactate fibers and polycarbonate are mixed to prepare.
Polylactate fibers and polycarbonate have same excellent suction with polycarbonate or cellular rubber layer Sound function.
Embodiment 5
A kind of new passage back veneer acoustical cotton, difference lies in middle sound absorbing layer 9 is using poly- breast with embodiment 1 for the present embodiment Acid esters fiber and polycarbonate are mixed to prepare.
Polylactate fibers and polycarbonate have same excellent with polycarbonate or mine asbestos fibre Sound absorption function.
In the utility model, rational raw material selection in the new passage back veneer acoustical cotton of the utility model, reasonably Raw material ratio, obtained new passage back veneer acoustical cotton light weight, sound-absorbing effect and performance are good, can be decorative strong, processing It is convenient, using the two-sided edge sealing of cutter is folded, its aesthetic appearance of acoustical cotton is added by improving the work efficiency of processing, use is green Color material, reduces pollution, improves environmental-protection function, easy to the recycling of acoustical cotton, has catered to market needs, has optimized work Skill designs and produces.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of new passage back veneer acoustical cotton, the passage back veneer acoustical cotton includes cotton core (1), circular through hole (2), two-sided Edge sealing (3), square through hole (4), square groove (5), round bottom groove (6), pointed groove (7), outer sound absorbing layer (8), middle sound-absorbing Layer (9), the first sound-absorbing internal layer (10) and the second sound-absorbing internal layer (11), it is characterised in that:The central position on the upper side of the cotton core (1) Put and offer circular through hole (2), the center lower position partially of the cotton core (1) is installed with square through hole (4), the cotton The outer edge of core (1), circular through hole (2) and square through hole (4) is designed as two-sided edge sealing (3), and cotton core (1) right side is partially Top offers square groove (5), offers round bottom groove (6) on the upside of the cotton core (1), cotton core (1) left lower is opened Equipped with pointed groove (7), the arranged stacked of the cotton core (1) is designed as outer sound absorbing layer (8), middle sound absorbing layer (9), in the first sound-absorbing Layer (10), the second sound-absorbing internal layer (11), the stacking of middle sound absorbing layer (9) and outer sound absorbing layer (8) successively from top to bottom.
A kind of 2. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The outer sound absorbing layer (8) sets Thick jute fiber plaiting article nonwoven fabric layer is calculated as, the thickness of thick jute fiber plaiting article nonwoven fabric layer is designed as 0.5~1.5mm.
A kind of 3. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The middle sound absorbing layer (9) sets Mine asbestos fibre layer is calculated as, the thickness of mine asbestos fibre layer is designed as 2~3mm, and mine asbestos fibre layer is specially one kind The platy structure of regular arrangement.
A kind of 4. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The first sound-absorbing internal layer (10) cellular rubber layer is designed as, the thickness of cellular rubber layer is designed as 2~5mm, and cellular rubber layer is specifically configured to irregularly Porous laminated structure.
A kind of 5. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The second sound-absorbing internal layer (11) polypropylene plastics fibrous layer is designed as, the thickness of polypropylene plastics fibrous layer is designed as 2~5mm, polypropylene plastics fiber Well-regulated oblique through-hole structure is opened up on layer.
A kind of 6. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The two-sided edge sealing (3) Width design is 2~3mm, and thickness is designed as 0.5~1.5mm.
A kind of 7. new passage back veneer acoustical cotton according to claim 1, it is characterised in that:The back side of the cotton core (1) 2~5 pieces of polypropylene plastics blocks are compounded with, wherein, mode of the polypropylene plastics block welding on metal plate is supersonic welding Connect method.
CN201720951327.6U 2017-08-01 2017-08-01 A kind of new passage back veneer acoustical cotton Expired - Fee Related CN207241041U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720951327.6U CN207241041U (en) 2017-08-01 2017-08-01 A kind of new passage back veneer acoustical cotton

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Application Number Priority Date Filing Date Title
CN201720951327.6U CN207241041U (en) 2017-08-01 2017-08-01 A kind of new passage back veneer acoustical cotton

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107415360A (en) * 2017-08-01 2017-12-01 湖北天运消音防振新材料有限公司 A kind of new passage back veneer acoustical cotton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107415360A (en) * 2017-08-01 2017-12-01 湖北天运消音防振新材料有限公司 A kind of new passage back veneer acoustical cotton

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180417

Termination date: 20180801