CN208052412U - Polymer material foam device - Google Patents
Polymer material foam device Download PDFInfo
- Publication number
- CN208052412U CN208052412U CN201820314655.XU CN201820314655U CN208052412U CN 208052412 U CN208052412 U CN 208052412U CN 201820314655 U CN201820314655 U CN 201820314655U CN 208052412 U CN208052412 U CN 208052412U
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- foaming
- radio
- die cavity
- polymer material
- signal generator
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Abstract
The utility model discloses polymer material foam device, including foaming mould and radio-frequency signal generator, the radio-frequency signal generator is connected to the foaming mould by waveguide pipe, and the waveguide pipe is connected with the die cavity.After opening radio-frequency signal generator, the radio frequency that radio-frequency signal generator generates is fed by waveguide pipe in die cavity, suction wave material in die cavity in base material to be foamed absorbs the radio frequency of feed-in and the temperature of base material to be foamed is made to gradually rise, when temperature is higher than foaming agent decomposition temperature, foaming agent decomposes rapidly aerogenesis, expanded material is promoted to be expanded to the foaming for realizing expanded material full of entire die cavity.The quick of polymer material, efficiently, even foaming can be realized using the foam device.It has broad application prospects in polymer material foaming field.
Description
Technical field
The utility model is related to polymer material foaming technique fields, foam and fill more particularly to a kind of polymer material
It sets.
Background technology
Currently, polymeric foamable material is widely used in the fields such as heat-insulated, sound insulation, damping, shoemaking.Currently used polymerization
Object foaming materials mode has physical blowing and chemical blowing.Chemical blowing process refers to that chemical foaming agent is blended with polymer material
Afterwards, at a certain temperature, chemical foaming agent is thermally decomposed, and generates gas, and expansion makes polymer material foam, current heating side
Formula is main or Electric heating passes through electricity first since electrical heating process is so that polymer material is heated by heat transfer
Hot plate heats foaming mould, and heat is passed to the expanded material in die cavity by foaming mould again, and there are high energy consumption, heating times
It is long, easily occur that local heating temperature is excessively high and the problems such as there are still heating dead angles for subregion.
Radio frequency is a kind of abbreviation of high-frequency ac variation electromagnetic wave, and frequency range is between 300KHz~30GHz.Wherein,
Microwave frequency band (300MHz-300GHz) but be radio frequency higher frequency band.Traditional radio frequency heating adds especially with high band microwave
Heat has heating speed fast, the characteristics of being heated evenly.It is mainly used for the heating lamp of food, such as the micro-wave oven of household.But in high score
In foamed forming process, it is related to foaming mould, the prior art is by foaming mould together with the polymer foaming in foaming mould
Material is put into closed microwave radiation space, class such as microwave oven heating food together.Under this mode, polymer material foaming is to hair
Bubble mold has special requirement, it is necessary to be the material that can penetrate microwave, could be used to make foaming mould, such as metal material
It cannot be used as foaming mould, this just significantly limits the application of radio frequency heating, because many polymer materials foam
In product foaming process, it is desirable that foaming mould is by enough pressure resistances, the performances such as heatproof.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of homogeneous heating, heating speed is fast, efficient polymerization
Object foaming materials device.
In order to achieve the above objectives, the solution of the utility model is：
Polymer material foam device, including foaming mould, the foaming mould include the upper mold for carrying out open mold cooperation
And lower die, between the upper mold and the lower die in the Inner Constitution of the foaming mould closed and with foaming product shape
The die cavity to match with size further includes the upper mold and described for generating radio frequency to import the radio-frequency signal generator in die cavity
The outer surface of lower die is glued with insulating layer and metal shell successively, and the radio-frequency signal generator is connected to the foaming by waveguide pipe
Mold, the waveguide pipe are connected with the die cavity.
After adopting the above technical scheme, the utility model polymer material foam device, in use, opening radio-frequency signal generator
Afterwards, the radio frequency that radio-frequency signal generator generates is fed by waveguide pipe in die cavity, and the suction wave material in die cavity in base material to be foamed is inhaled
It receives the radio frequency of feed-in and the temperature of base material to be foamed is made to gradually rise, when temperature reaches foaming agent decomposition temperature, foaming agent is fast
Speed decomposes aerogenesis, and expanded material is promoted to be expanded to the foaming for realizing expanded material full of entire die cavity.It can using the foam device
Realize the quick of polymer material, efficiently, even foaming.It has broad application prospects in polymer material foaming field, especially
It has extremely important application value in movement midsole material preparation industry.
The utility model polymer material foam device has the advantages that：1, the utility model overcomes traditional technology
Defect, so that microwave is resulted from die cavity, solve to heat the technical problems such as uneven during electrical heating in traditional chemical foaming,
Promote heating speed so that rapidly and efficiently foam, foam device compact structure, low energy consumption.2, the utility model solves traditional skill
Art has the problem of particular/special requirement, mold that conductive metal material may be used mold materials, as ferroalloy, aluminium alloy or copper close
Gold etc..3, the outside of the utility model foaming mould is also enclosed with insulating layer and metal shell.Metal shell plays shielded radio frequency
The effect to leak, when worker carries out high molecular material foaming using the technical solution of the utility model, from the radiation of radio frequency,
To realize safety in production.4, the utility model can be widely used for PU, TPU, EVA, PE, PP, PU, SEBS and other elastomers
The foaming of material or intermingling material.Even for the nonpolar or low polar high molecular material for not absorbing radio frequency, can also lead to
It crosses and polarity strong macromolecule or inorganic material is blended to serve as radio frequency absorption agent, to realize the radio frequency heating of high molecular material.
Further, the waveguide pipe is connected to the lower die.
Further, the section of the upper mold and the lower die vertically is respectively U-shaped face, and the upper mold has
First cavity, the lower die have the second cavity, and above-mentioned die cavity is collectively formed in first cavity and second cavity.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model polymer material foaming；
Fig. 2 is that the abscess pattern SEM of the SEBS expanded materials obtained using the foam device of the utility model is schemed.
Upper mold -1；Lower die -2；
Insulating layer -3；Metal shell -4；
Die cavity -5；Radio-frequency signal generator -6；
Waveguide pipe -7.
Specific implementation mode
In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into
Row elaborates.
Embodiment one
A kind of polymer material foam device is used for the foamable of polymeric foamable material.As shown in Figure 1, including hair
Steep mold and radio-frequency signal generator 6.Radio-frequency signal generator 6 is known technology.Above-mentioned foaming mould includes upper mold 1 and lower die 2, with foaming
Orientation under device real use state is reference azimuth, in the present embodiment, the section of upper mold 1 and lower die 2 vertically point
Not Wei U-shaped face, upper mold 1 have the first cavity, lower die 2 have the second cavity, the U-shaped opening end of upper mold 1 and the U-shaped of lower die 2 are opened
Mouth end is relatively closed together, after molding (i.e. upper mold 1 is closed completely with lower die 2), is constituted between upper mold 1 and lower die 2 closed
Die cavity 5, i.e. the first cavity and the second cavity mold to form die cavity 5.Die cavity 5 is located at the inside of foaming mould, the shape of die cavity 5 with
The shape of foaming product matches.Radio-frequency signal generator 6 is connected to lower die 2 by waveguide pipe 7, and waveguide pipe 7 is connected with die cavity 5.
The effect of waveguide pipe 7 is that the radio frequency for generating radio-frequency signal generator 6 is imported into die cavity 5, and the expanded material being positioned in die cavity 5 is logical
The radio frequency for crossing the generation of radio-frequency signal generator 6 is heated.It is close to be equipped with insulating layer 3 and metal successively in the outer surface of upper mold 1 and lower die 2
Shell 4, i.e. insulating layer 3 are tightly attached on the outer surface of upper mold 1 and lower die 2, and metal shell 4 is coated on the outer surface of insulating layer 3, absolutely
Edge layer 3 is between metal shell 4 and upper mold 1 and the outer surface of lower die 2.Metal shell 4 is preferably aluminium alloy or stainless steel
Material, have shielding action, prevent radio frequency caused by radio-frequency signal generator 6 from leaking, it is ensured that user using the equipment when not
It can be by radio-frequency radiation.Insulating layer 3 separates metal shell 4 and upper mold 1, while shell 4 and lower die 2 being separated, and realizes that electricity is not led
It is logical.
The polymer material foam device of the utility model opens radio-frequency signal generator 6 when in use, and radio-frequency signal generator 6 produces
Raw radio frequency is fed by waveguide pipe 7 in die cavity 5, is heated, is mixed into expanded material to the expanded material in die cavity 5
Foaming agent is generated gas expansion by thermal decomposition, to realize the foaming of expanded material.
By taking polymeric foamable material is SEBS as an example, the application method of above-mentioned polymer material foam device includes following step
Suddenly：
The first step, blowing：Base material to be foamed is positioned in die cavity 5, closes foaming mould, and applied above and below foaming mould
Plus-pressure compresses foaming mould, and conventional foaming vulcameter can be used and pressurize to foaming mould, wherein base material to be foamed
By SEBS, foaming agent, blowing promotor, crosslinking agent, antioxidant obtains after inhaling the blending uniformly of the materials such as wave additive and filler.
SEBS is expanded material, as foaming main material；Added using above-mentioned foaming vulcameter it should be noted that the utility model is removed
Pressure is outer, other pressuring methods in addition to above-mentioned foaming vulcameter also can be used；
Second step, foamable：Radio-frequency signal generator 6 is opened, the radio frequency that radio-frequency signal generator 6 generates passes through 7 feed-in of waveguide pipe
Into die cavity 5, suction wave material in die cavity 5 in base material to be foamed (main material and/or inhale wave auxiliary agent) absorbs the radio frequency of feed-in and makes
The temperature of base material to be foamed gradually rises, and when temperature is higher than foaming agent decomposition temperature, foaming agent decomposes rapidly aerogenesis, promotes
SEBS foaming and intumescings are to being full of entire die cavity 5, when foaming agent decomposes complete, i.e. when SEBS foaming is complete, obtain and 5 shape of die cavity
Consistent SEBS expanded materials；
Third walks, and takes out expanded material：Open foaming mould, by SEBS expanded materials take out to get to 5 shape of die cavity
Consistent SEBS expanded materials.As shown in Fig. 2, foamed using the polymer material foam device of the utility model
PU expanded materials, uniform in foaming.
The utility model polymer material foam device, heat generate in die cavity 5, directly act on base material to be foamed
Make base material heat temperature raising to be foamed, and foaming mould itself does not heat, and removes the cooling system of foaming mould, workshop ring from
Border temperature is unaffected, and working condition is good.It should be noted that in foamable, from being heated to foam, 5min is generally only needed
Time.The time be slightly different with the difference of expanded material total amount, the difference of expanded material type and inhale wave material total amount and
The factors such as the difference of its corresponding absorbing property are related.And traditional use electric hot plate mode of heating, it is at least needed from foaming is heated to
The 10min times, and there is a problem of that energy consumption is big.In addition, traditional mode of heating is by electric boiling plate by conducting heat inward outside,
Therefore heat can be also transmitted in working environment, cause operating ambient temperature high, working condition is severe.
The product form and style of above-described embodiment and attached drawing and non-limiting the utility model, any technical field
The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.
Claims (3)
1. polymer material foam device, including foaming mould, the foaming mould include carry out open mold cooperation upper mold and
Lower die, closed in the Inner Constitution of the foaming mould between the upper mold and the lower die and shape with foaming product and
The die cavity that size matches, it is characterised in that：Further include for generating radio frequency to import the radio-frequency signal generator in die cavity, it is described on
The outer surface of mould and the lower die is glued with insulating layer and metal shell successively, and the radio-frequency signal generator is connected to by waveguide pipe
The foaming mould, the waveguide pipe are connected with the die cavity.
2. polymer material foam device as described in claim 1, it is characterised in that：The waveguide pipe be connected to it is described under
Mould.
3. polymer material foam device as described in claim 1, it is characterised in that：The upper mold and the lower die are along vertical
The section in direction is respectively U-shaped face, and there is the upper mold the first cavity, the lower die to have the second cavity, first cavity
The die cavity is collectively formed with second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314655.XU CN208052412U (en) | 2018-03-07 | 2018-03-07 | Polymer material foam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820314655.XU CN208052412U (en) | 2018-03-07 | 2018-03-07 | Polymer material foam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208052412U true CN208052412U (en) | 2018-11-06 |
Family
ID=63992016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820314655.XU Active CN208052412U (en) | 2018-03-07 | 2018-03-07 | Polymer material foam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208052412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590809A (en) * | 2020-05-23 | 2020-08-28 | 侯奥 | Adjustable multifunctional foaming mold device |
| CN113246367A (en) * | 2021-06-09 | 2021-08-13 | 东莞利达运动用品有限公司 | Novel foaming adhesive forming process |
-
2018
- 2018-03-07 CN CN201820314655.XU patent/CN208052412U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590809A (en) * | 2020-05-23 | 2020-08-28 | 侯奥 | Adjustable multifunctional foaming mold device |
| CN111590809B (en) * | 2020-05-23 | 2022-11-08 | 芜湖达锦新材料科技有限公司 | Adjustable multifunctional foaming mold device |
| CN113246367A (en) * | 2021-06-09 | 2021-08-13 | 东莞利达运动用品有限公司 | Novel foaming adhesive forming process |
| CN113246367B (en) * | 2021-06-09 | 2021-11-02 | 东莞利达运动用品有限公司 | Novel foaming adhesive forming process |
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