CN107775878B - Plastic sound-absorbing material processing method, product and mould - Google Patents
Plastic sound-absorbing material processing method, product and mould Download PDFInfo
- Publication number
- CN107775878B CN107775878B CN201710706691.0A CN201710706691A CN107775878B CN 107775878 B CN107775878 B CN 107775878B CN 201710706691 A CN201710706691 A CN 201710706691A CN 107775878 B CN107775878 B CN 107775878B
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- China
- Prior art keywords
- plastics
- sound
- plastic
- sound absorber
- 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.)
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- 239000004033 plastic Substances 0.000 title claims abstract description 80
- 229920003023 plastic Polymers 0.000 title claims abstract description 80
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 239000011358 absorbing material Substances 0.000 title abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 239000006096 absorbing agent Substances 0.000 claims description 33
- 238000010521 absorption reaction Methods 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 3
- 238000005034 decoration Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/608—Honeycomb structures
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
A plastic sound absorbing material processing method, a product and a mould are provided, the plastic sound absorbing material processing method is that in the process of melting plastic and forming the plastic by the mould, a plurality of bubble holes with different sizes and depths are formed on the surface of the plastic in a mode of blowing the surface of the plastic through a plurality of blowing holes arranged on the mould under the state that the plastic is not solidified, and the plastic sound absorbing material with a plurality of sound absorbing holes on the surface is manufactured after the plastic is hardened; the invention can rapidly manufacture the plate-shaped, sheet-shaped or shell-shaped plastic sound absorbing material by the processing method, and because the surface of the plastic sound absorbing material is distributed with the bubble holes with different sizes, the material and the shape of the product can be freely designed and can be widely used for shells of building materials, decorations or industrial products, and the bubble holes arranged on the surface of the plastic sound absorbing material can correspondingly absorb sound waves with different ranges of wavelengths, thereby achieving good sound absorbing effect.
Description
Technical field
The present invention relates to a kind of processing methods, more particularly to one kind to blow to be formed in frosting in plastic moulding process
Crafters and the method for producing plastics sound absorber.
Background technique
In environment arround human lives, due to thering is vehicle, cold air etc. to generate the source of noise, often in nature
Environment other than, produce the noise that various differences disturb people.Above-mentioned noise has seriously affected quality of life, in recording studio, doctor
Treat the pollution that noise is especially impatient in the place that institutes etc. needs peace and quiet.
To solve the problems, such as above-mentioned noise, the material of the building materials or decoration of a variety of sound-absorbings or sound insulation comes into being, such as inhales
The principle of sound sponge or metal, wooden abatvoix, above-mentioned sound-absorbing sponge or sound-absorbing metal plate is formed on the surface of plate
Hole enters the characteristic that kinetic energy can decay in hole using sound wave, cuts down the noise generated in environment.
However sound-absorbing sponge above-mentioned is bulky, becomes easily infected by dust without easy to clean, and the abatvoix of metal in addition to
Heaviness, need to calculate load-bearing on and make to be arranged position it is limited other than, also costly, both the above sound-absorbing material exists price
It is obvious with having the shortcomings that in upper and manufacturing cost.
Summary of the invention
It is not easily cleaned or weight weight, purposes are limited at high cost lack since existing sound-absorbing sponge or sound-absorbing metal plate have
Point.For this purpose, the present invention plastic melt with it is formed in mould during, multiple gas holes for being equipped with by mold are to plastic table
Face is blown, and the plastics sound absorber that light-weight and surface has multiple sound-absorption holes is produced.
To reach above-mentioned creation purpose, the present invention provides a kind of plastics sound absorber processing method, and step includes:
Injection molding: it is formed by plastic melt and with mold；
Air blowing forms crafters: in plastics with mold molding but still under not solidified state, being equipped with by mold more
A gas hole is blown to the surface of plastics, forms the crafters of multiple and different sizes, depth on the surface of the plastics；And
Cooling and solidifying: fixed as different size of suction in multiple crafters of the frosting after the plastics are cooling
Sound hole, each sound-absorption hole has an opening, and the width dimensions inside more each sound-absorption hole of width dimensions being respectively open are narrow, i.e., by the modeling
The plastics sound absorber that a surface has multiple aforementioned sound-absorption holes is made in material.
Preferably, processing method of the invention is in the step of air blowing forms crafters, it is multiple on the mold
Gas hole is the hole that diameter is not more than 0.2mm.
A kind of plastics sound absorber product is made by the processing method of aforementioned present invention, a plastics sound absorber is equipped with, at this
The surface of plastics sound absorber forms multiple sound-absorption holes of different sizes, and each sound-absorption hole has an opening, and the broad-ruler of the opening
It is very little narrow compared with the width dimensions inside the sound-absorption hole.
Preferably, the width dimensions of opening described in product of the invention are not more than 0.2mm.
Plastics sound absorber mold used in aforementioned present invention processing method, including a die ontology and one be embedded at this
The mode of die ontology, in which:
A groove, which is formed, in the die ontology wears one on the inside of the gas chamber in the recessed gas chamber in the inside of the groove
Air flue, the air flue form a gas injection port on the surface of the die ontology；And
The mode is embedded in the groove, the range of the corresponding gas chamber, runs through multiple gas holes in the mode, each
Gas hole is communicated with the gas chamber.
Preferably, the die ontology is equipped with a die cavity in mold of the invention, the groove is formed in the die cavity
Inside.
Preferably, the die ontology is idler wheel in mold of the invention, the groove is formed in the table of the idler wheel
Face.
The present invention can be blown in plastic ejection moulding or plastics extrusion forming using mold by above-mentioned processing method
The mode of gas produces the plastics sound absorber with size, depth difference sound-absorption hole, and the speed of manufacture is fast and light weight processed, just
Preferably, in addition size, depth difference and irregular sound-absorption hole can make the sound wave of different wave length decay, therefore mitigate the effect of noise
It is good, environment or field that building materials, decoration etc. need sound-absorbing can be widely used in.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of the first preferred embodiment of inventive die.
Fig. 2 is the use implementation diagram of the first preferred embodiment of inventive die.
Fig. 3 is the step flow chart of the method for the present invention preferred embodiment.
Fig. 4 is the diagrammatic cross-section of inventive article.
Fig. 5 is the stereoscopic schematic diagram of the second preferred embodiment of inventive die.
Fig. 6 is the use implementation diagram of the second preferred embodiment of inventive die.
Description of symbols:
10: die ontology, 11: die cavity, 12: groove, 13: gas chamber, 14: air flue,
15: gas injection port, 20: mode, 21: gas hole, 30: plastics, 31: crafters,
32: opening, 40: plastics sound absorber, 41: sound-absorption hole.
Specific embodiment
For technical characteristic and practical effect of the invention can be understood in detail, and can implement according to the content of specification, into
One step is with preferred embodiment as shown in drawings, and detailed description are as follows.
The present invention is a kind of plastics sound absorber processing method, plastics sound absorber mold, such as Fig. 1 used in method and step
Shown in the first preferred embodiment, being includes that a die ontology 10 and one are embedded mode 20 in the die ontology 10, and use
In the environment of plastic ejection moulding, in which:
The die ontology 10 is equipped with a die cavity 11, which is the space of plate shape, the top inside the die cavity 11
The recessed groove 12 in side, the recessed gas chamber 13 in top side inside the groove 12, wears an air flue 14 inside the gas chamber 13, should
The surface that air flue 14 extends to the die ontology 10 forms a gas injection port 15.
The mode 20 is plate body and the groove 12 that is embedded in the die ontology 10 is fixed, the range of the corresponding groove 12,
Run through multiple gas holes 21 in the mode 20, one end of each gas hole 21 is communicated with the gas chamber 13, and each gas hole 21 is diameter
Hole no more than 0.2mm.
When the first preferred embodiment of foregoing plastics sound absorber mold is used for plastics sound absorber processing method, processing side
The step of method, is as shown in Figure 3, comprising:
Injection molding: it as shown in Figure 1 and Figure 2, injects in the die cavity 11 of the die ontology 10 and is shaped to after plastics 30 are melted
Plate.
Air blowing forms crafters: as shown in Figure 1 and Figure 2, which forms in die cavity 11 but still not solidified state
Under, pressurized gas source is connected with gas injection port 15, high pressure gas is passed through to multiple air blowings of the mode 20 by air flue 14, gas chamber 13
Hole 21 is blown to the surface of the plastics 30, since the pressure size of each 21 blow gas of gas hole will not be identical, plastics 30
Temperature, density everywhere will not be identical, and each gas hole 21 is the hole that diameter is not more than 0.2mm, therefore can be in the modeling
The surface of material 30 forms the micro-bubble hole 31 of multiple and different sizes, depth, and multiple crafters 31 are respectively provided with an opening 32, respectively
Width dimensions inside more each crafters 31 of the width dimensions of the opening 32 of crafters 31 are narrow.
Cooling and solidifying: to the plastics 30 hardening by cooling in the die cavity 11 of the die ontology 10, at this moment 30 surface of plastics
Multiple crafters 31 it is fixed become different size of sound-absorption hole 41, as shown in figure 4, each sound-absorption hole 41 has an opening 32, and
Width dimensions inside more each sound-absorption hole 41 of width dimensions of each opening 32 are narrow, i.e., a surface, which is made, in the plastics 30 by completion has
The processing procedure of the plastics sound absorber 40 of multiple aforementioned sound-absorption holes 41 is solid at the not formed multiple sound-absorption holes 41 of the plastics sound absorber 40
Construction, and the width dimensions of the opening 32 of each sound-absorption hole 41 be not more than 0.2mm.
Plastics sound absorber mold of the invention removes aforementioned first preferred embodiment, is used in the environment of plastic injection, such as
Fig. 5, the second preferred embodiment shown in fig. 6, are used in the environment of plastics extrusion molding, which includes one
Die ontology 10 and one it is embedded mode 20 in the die ontology 10, in which:
The die ontology 10 is idler wheel, in the recessed groove 12 in the surface of the die ontology 10, in the inside of the groove 12
A recessed gas chamber 13 wears an air flue 14 on the inside of the gas chamber 13, and the surface which extends to the die ontology 10 is formed
One gas injection port 15.
The mode 20 is the plate body of arc and the groove 12 that is embedded in the die ontology 10 is fixed, the corresponding groove 12
Range runs through multiple gas holes 21 in the mode 20, and one end of each gas hole 21 is communicated with the gas chamber 13, and each gas hole 21 is
Diameter is not more than the hole of 0.2mm.
When the second preferred embodiment of foregoing plastics sound absorber mold is used for plastics sound absorber processing method, processing side
The step of method, is as shown in Figure 3, comprising:
Injection molding: it as shown in Figure 5, Figure 6, is squeezed out after plastics 30 are melted with plastic extruder and is attached to the mold sheet
Extend around body 10 is sheet.
Air blowing forms crafters: as shown in Figure 5, Figure 6, the plastics 30 the surface formings of the plastics 30 but still it is not solidified
Under state, pressurized gas source is connected with gas injection port 15, high pressure gas is multiple by the mode 20 by air flue 14, gas chamber 13
Gas hole 21 is blown to the surface of the plastics 30, since the pressure size of each 21 blow gas of gas hole will not be identical, modeling
30 temperature, density everywhere of material will not be identical, and each gas hole 21 is the hole that diameter is not more than 0.2mm, therefore can be
The surface of the plastics 30 forms the micro-bubble hole 31 of multiple and different sizes, depth, and multiple crafters 31 are respectively provided with an opening
32, the width dimensions inside more each crafters 31 of the width dimensions of the opening 32 of each crafters 31 are narrow.
Cooling and solidifying: after the plastics 30 are cooling, multiple crafters 31 on 30 surface of plastics are fixed to become different size
Sound-absorption hole 41, as shown in figure 4, each sound-absorption hole 41 has an opening 32, and more each sound-absorption hole 41 of width dimensions of each opening 32
Internal width dimensions are narrow, that is, complete that the plastics sound absorber 40 that a surface has multiple aforementioned sound-absorption holes 41 for the plastics 30 is made
Processing procedure, and the width dimensions of the opening 32 of each sound-absorption hole 41 be not more than 0.2mm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention the interest field of opinion,
All other equivalent changes or modification completed without departing from disclosed spirit, should all include wanting in right of the invention
It asks in range.
Claims (8)
1. a kind of plastics sound absorber processing method, which is characterized in that its step includes:
Injection molding: it is formed by plastic melt and with mold；
Air blowing forms crafters: in plastics with mold molding but still under not solidified state, multiple being blown by what mold was equipped with
Stomata is blown to the surface of plastics, forms the crafters of multiple and different sizes on the surface of the plastics；And
Cooling and solidifying: after the plastics are cooling, the multiple crafters for being formed in the frosting are fixed as different size, depth
Sound-absorption hole, each sound-absorption hole has an opening, and the width dimensions inside more each sound-absorption hole of width dimensions being respectively open are narrow, i.e., will
The plastics sound absorber that a surface has multiple aforementioned sound-absorption holes is made in the plastics.
2. plastics sound absorber processing method as described in claim 1, which is characterized in that wherein form crafters in the air blowing
The step of in, multiple gas holes on the mold be diameter be not more than 0.2mm hole.
3. a kind of plastics sound absorber product manufactured with plastics sound absorber processing method described in claim 1, which is characterized in that
Equipped with a plastics sound absorber, multiple sound-absorption holes of different sizes are formed on the surface of the plastics sound absorber, each sound-absorption hole has one
Opening, and the width dimensions of the opening are narrow compared with the width dimensions inside the sound-absorption hole.
4. plastics sound absorber product as claimed in claim 3, which is characterized in that wherein the width dimensions of the opening are not more than
0.2mm。
5. a kind of plastics sound absorber mold, which is characterized in that be embedded the mould in the die ontology including a die ontology and one
Benevolence, in which:
A groove is formed in the die ontology, and an air flue is worn on the inside of the gas chamber in the recessed gas chamber in the inside of the groove,
The air flue forms a gas injection port on the surface of the die ontology；And
The mode is embedded in the groove, the range of the corresponding gas chamber, runs through multiple gas holes, each air blowing in the mode
Hole is communicated with the gas chamber.
6. plastics sound absorber mold as claimed in claim 5, which is characterized in that wherein each gas hole is that diameter is not more than
The hole of 0.2mm.
7. such as plastics sound absorber mold described in claim 5 or 6, which is characterized in that wherein the die ontology is equipped with a mould
Cave, the groove are formed in the inside of the die cavity.
8. such as plastics sound absorber mold described in claim 5 or 6, which is characterized in that wherein the die ontology is idler wheel, institute
The groove stated is formed in the surface of the idler wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105127525 | 2016-08-26 | ||
| TW105127525A TWI619603B (en) | 2016-08-26 | 2016-08-26 | Acoustic absorber, producing method thereof and tooling thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107775878A CN107775878A (en) | 2018-03-09 |
| CN107775878B true CN107775878B (en) | 2019-10-18 |
Family
ID=61437787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706691.0A Active CN107775878B (en) | 2016-08-26 | 2017-08-17 | Plastic sound-absorbing material processing method, product and mould |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107775878B (en) |
| TW (1) | TWI619603B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08320692A (en) * | 1995-05-24 | 1996-12-03 | Mitsubishi Heavy Ind Ltd | Dripproof type sound absorbing panel |
| TW384782U (en) * | 1996-10-23 | 2000-03-11 | Chiou Shau Chian | Improved structure for the foaming molds |
| JP3707207B2 (en) * | 1997-06-20 | 2005-10-19 | 宇部興産株式会社 | Method and apparatus for spraying liquid agent on molten metal contact surface |
| AU768157B2 (en) * | 1998-09-17 | 2003-12-04 | Dow Global Technologies Inc. | Perforated foams |
| JP4074391B2 (en) * | 1998-10-23 | 2008-04-09 | 旭ビルウォール株式会社 | Sound absorbing structure |
| TW583062B (en) * | 2000-03-27 | 2004-04-11 | Yue Sheng Ind Co Ltd | Method for producing integral acoustic absorptive automobile carpet and product thereof |
| JP2002036302A (en) * | 2000-07-26 | 2002-02-05 | Ricoh Co Ltd | Method for producing sound insulating cover |
| EP1197309B1 (en) * | 2000-10-04 | 2004-04-07 | Alcan Technology & Management AG | Method of manufacturing fibre reinforced composite structural elements |
| TWI284595B (en) * | 2003-05-09 | 2007-08-01 | Nagoya Oilchemical | Flame retardant sound insulating material |
| TWI292766B (en) * | 2003-10-09 | 2008-01-21 | Mitsui Chemicals Inc | Ultrahigh molecular weight polyethylene foam and manufacturing method and use thereof |
| JP2007106304A (en) * | 2005-10-14 | 2007-04-26 | Hayashi Telempu Co Ltd | Sound absorbing panel |
| CN101537714A (en) * | 2008-03-18 | 2009-09-23 | 王景辉 | Method for molding carbon fiber product |
| TWI532579B (en) * | 2013-07-25 | 2016-05-11 | zi-ming Lin | Bubbling of the container |
| CN104912007B (en) * | 2015-05-26 | 2017-07-28 | 上海中驰集团股份有限公司 | A kind of preparation method of acoustic tile |
-
2016
- 2016-08-26 TW TW105127525A patent/TWI619603B/en active
-
2017
- 2017-08-17 CN CN201710706691.0A patent/CN107775878B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI619603B (en) | 2018-04-01 |
| CN107775878A (en) | 2018-03-09 |
| TW201806735A (en) | 2018-03-01 |
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