CN105711024B - A kind of efficient foaming machine - Google Patents
A kind of efficient foaming machine Download PDFInfo
- Publication number
- CN105711024B CN105711024B CN201610148762.5A CN201610148762A CN105711024B CN 105711024 B CN105711024 B CN 105711024B CN 201610148762 A CN201610148762 A CN 201610148762A CN 105711024 B CN105711024 B CN 105711024B
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- foaming
- mouthful
- heating
- resonance range
- zone
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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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/28—Expanding the moulding material on continuous moving surfaces without restricting the upwards growth of the foam
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to foaming materials field, and in particular to a kind of efficient foaming machine, including, feeding device, Processing Room and material collecting device, the Processing Room include：It is connected above and below heating zone to foaming materials and the cooling zone to material shaping, heating zone and cooling zone and the heating zone is arranged on the top of cooling zone；The heating zone includes, the foaming passage of strip tee section straight down and the heating system to material heating in the foaming passage；The heating system includes, wave source transmitter, waveguide and energy regenerative mouthful, the wave source transmitter is arranged on outside the foaming passage, and the energy regenerative mouth is arranged on the side wall of the foaming passage, and the two ends of the waveguide are connected with the wave source transmitter and energy regenerative mouthful respectively；Isolation strip is provided between the heating zone and cooling zone.
Description
Technical field
The present invention relates to foaming materials field, and in particular to a kind of efficient foaming machine.
Background technology
Foam polyolefin material is foamed frequently with foaming furnace in process of production, traditional foaming furnace using hot blast,
The modes such as steam provide the hot environment required for foaming, and usual foaming furnace is by the mode such as Electromagnetic Heating or fuel heating to stove
The interior heat temperature raising for carrying out thermal conductivity, to reach blowing temperature.However, this mode of heating effect is poor, expanded material is in stove
Interior travelling speed is slow, and furnace volume is big, and the thermal loss that heating furnace is imported and exported can cause huge to the foaming effect in stove
Influence.
For example, notification number is that a kind of irradiated crosslinked polyalkene foaming equipment and notification number are disclosed in CN1799809A
A kind of polyolefin coiled material foaming machine disclosed in CN201195371Y, to polyene by the way of level preheating and vertical foaming furnace
Hydrocarbon material carries out foamable, but it has problems with：1st, firing rate is slow, heats high energy consumption.2nd, stove in heating process
Interior hot gas can not make full use of.3rd, vertical foaming section is longer, and expanded material has one under gravity in vertical foaming
Fixed elongation, is unfavorable for the sizing of product.4th, expanding unit is provided with vertical furnace, can be caused while expansion to expanded material
The infringement of material surface, influences final product quality.
The content of the invention
There is provided a kind of efficient foaming machine for the problem of purpose of the present invention is to solve in background technology.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of efficient foaming machine, including, feeding device, Processing Room and material collecting device, the Processing Room include：To material
Expect the heating zone and cooling zone to material shaping of foaming, heating zone be connected above and below cooling zone and the heating zone is arranged on
The top of cooling zone；The heating zone includes, the foaming passage of strip tee section straight down and logical to the foaming
The heating system that material is heated in road；The heating system includes, wave source transmitter, waveguide and energy regenerative mouthful, the wave source hair
Emitter is arranged on outside the foaming passage, and the energy regenerative mouth is arranged on the side wall of the foaming passage, and the two of the waveguide
End is connected with the wave source transmitter and energy regenerative mouthful respectively；Isolation strip is provided between the heating zone and cooling zone.The ripple
Source transmitter is magnetron, and magnetron produces microwave, and enter foaming passage from energy regenerative mouthful under the transmission of waveguide enters to material
Row heating, because microwave is heated to be the mode of heating of no medium, compared to traditional electrical heating or the mode firing rate of gas heating
More quick, required heating space is smaller, and deformation quantity of the material in heating zone is small, in addition, heating zone and cooling zone
It is joined directly together, it is ensured that after foaming is finished, the direct cooling and shaping of material further reduces the deformation in process, improves
Final product quality.
Preferably, the foaming passage includes multiple resonance ranges, the resonance range is arranged above and below；It is described each humorous
Shaking in region, individually matching has dividing plate is provided between independent heating system, resonance range, and multiple resonance ranges can be real
The control heating of existing multi-temperature section, is easy to the control of foaming parameter, improves product quality.
Preferably, the resonance range is rectangle stereochemical structure, the energy regenerative mouthful is symmetrically distributed in resonance range level
Multiple energy regeneratives mouthful are provided with two relative side walls, and on the wall of each side.
Preferably, each length of side of the resonance range meets following relation with the wave source transmitter launch wavelength：
Wherein f is emitted frequency, and c is the light velocity, and m, n, p are natural number, and a, b, h are the length, width and height of resonance range.This
Relation between resonance range and launch wavelength that part is established can ensure that microwave is in resonance range formation standing wave so that resonance
The microwave energy that fixed position is received in region is constant, reaches more stable heating effect.
Preferably, the vibration frequency f of the transmitted wave is 900MHz~2500MHz, transmission power is 50~500KW,
Include one or more of mould fields in TM010, TM011, TE111, TM110 and TE211 pattern, multimodal fusion in resonance range
The heating uniformity in resonance range can be improved.
Preferably, preferably, the energy regenerative mouthful is disc, the waveguide sources are arranged in energy regenerative mouthful disk
It is provided with some slots in the heart, energy regenerative mouthful, slot is rectangle, slot is arranged in multigroup in a linear fashion, and slot is justified with disk
Arranged centered on the heart in emitting shape, slot is arranged in multiple groups along emission lines, wherein the slot in every emission lines with away from
From the increase of circle center distance, its length also gradually increases.Slot quantity in the emission lines is between 3-8 bars, adjacent slot
Distance is the positive integer times of guide wavelength half.To ensure that the microwave power that every slot radiation comes out is equal, it is ensured that stable
Heating effect
Preferably, the upper and lower side of the foaming passage is respectively arranged with the material inlet and material outlet of bar slit, institute
State foaming vias inner walls and be provided with reflecting layer, the material inlet is provided with microwave suppressor, polyalkene foaming with material outlet
Material is generally flat belt-like, and bar slit, which is provided with the material inlet of microwave suppressor and material outlet, to ensure expanded material
Situation about passing through, prevents microwave from escaping, and improves the thermal efficiency, the efficiency of heating surface is further improved in reflecting layer to reduce lossy microwave.
Preferably, being provided with temperature controller in the resonance range, the temperature controller includes temperature detector and power is adjusted
Device is saved, temperature detector passes through the work(of power governor change magnetron to detect the temperature in each resonance range
Rate is so as to control temperature.
Preferably, the feeding device includes discharging rod and unreeling structure, the discharging rod is arranged on the material and entered
The top of mouth；The material collecting device includes sizing roller group, traction roller group and rolling-up mechanism, and the sizing roller group is arranged on cooling zone
It is provided with to keep sizing roller group to contact with expanded material in the interior position below material outlet, and the sizing roller group
The cooling channel of the face state of cooling.The sizing roller group includes setting roll compositions multipair relative two-by-two and with different pressures,
Repeatedly to shape repeatedly, cooling of the cooling channel to keep sizing roller group surface, so as to improve fixed effect.
Preferably, the isolation strip is included to prevent transmitted wave from entering the absorption reflecting layer of cooling zone and to completely cut off
Heating zone heat enters the thermal insulation layer of cooling zone, and the absorption reflecting layer uses stainless steel microwave suppressing plate, and the thermal insulation layer is adopted
Use asbestos board.Prevent from completely cutting off heat while microwave leakage, it is ensured that the fixed effect of cooling zone.
In summary, beneficial effects of the present invention：
1. a kind of efficient foaming machine of the present invention, using the heating zone and cooling zone of interconnection so that foaming
The cooling and shaping effect of material is good, and by isolation strip to be independent of each other between heating zone and cooling zone.
2. a kind of efficient foaming machine of the present invention, is heated using microwave, and firing rate is fast, sets resonator to make
Obtain material heating more uniform, effectively increase bubbling efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of resonance range in the present invention；
Fig. 3 is the structural representation of heating system in the present invention；
Fig. 4 is the structural representation of slot in the present invention.
Embodiment
Specific examples below is only explanation of the invention, and it is not limitation of the present invention, art technology
Personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as
All protected in scope of the presently claimed invention by Patent Law.
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
According to Fig. 1, Fig. 2, Fig. 3, a kind of efficient foaming machine, including, feeding device 1, Processing Room 2 and material collecting device
3, Processing Room 2 includes：On heating zone 4 to foaming materials and the cooling zone 5 to material shaping, heating zone 4 and cooling zone 5
Lower connected and heating zone 4 is arranged on the top of cooling zone 5；Heating zone 4 includes, the foaming passage of strip tee section straight down
6 and in the passage 6 that foams material heat heating system 7；Heating system 7 includes, wave source transmitter 71, the and of waveguide 72
Energy regenerative mouthful 73, wave source transmitter 71 is arranged on outside foaming passage 6, and energy regenerative mouthful 73 is arranged on the side wall of foaming passage 6, waveguide
72 two ends are connected with wave source transmitter 71 and energy regenerative mouthful 73 respectively；Isolation strip 21 is provided between heating zone 4 and cooling zone 5.
Wherein wave source transmitter 71 is magnetron, and waveguide 72 is metal tube.
The passage 6 that foams includes three resonance ranges 601, and resonance range 601 is arranged above and below, from top to bottom respectively to pre-
Individually match to have in heat, foaming and insulation, each resonance range 601 and lead between independent heating system 7, resonance range 601
Dividing plate 602 is crossed to separate.Resonance range 601 is rectangle stereochemical structure, and it is relative that energy regenerative mouthful 73 is symmetrically distributed in the level of resonance range 601
Two side walls on, and multiple energy regeneratives mouthful 73 are provided with each side wall.Each length of side of resonance range 601 is launched with energy regenerative mouthful 73
The frequency f of ripple is 2450MHz, power 50kw, and the length, width and height of resonance range 601 are respectively 200cm, 40cm and 35cm.
According to Fig. 3, Fig. 4, energy regenerative mouthful 73 is disc, and waveguide sources are arranged on the center of 73 disks of energy regenerative mouthful, energy regenerative
Be provided with some slots 731 on mouthfuls 73, slot 731 is rectangle, slot 731 be arranged in a linear fashion it is multigroup, slot 731 with
Arranged centered on circle disk center in emitting shape, slot 731 is arranged in the slot in multiple groups, every group of emission lines along emission lines
731 quantity are 5, and the distance between adjacent slot 731 is 73.5mm, and the width of slot 731 is 6mm, and the length X1 of slot 731 is
17.58mm, X2 are 19.14mm, and X3 is 21.03mm, and X4 is 24.06mm, and X5 is 28.56mm.
The upper and lower side of foaming passage 6 is respectively arranged with the material inlet 61 and material outlet 62 of bar slit, foaming passage 6
Wall is provided with reflecting layer 63, and material inlet 61 is provided with microwave suppressor with material outlet 62, and foam polyolefin material is mostly flat
Flat ribbon, bar slit, which is provided with the material inlet 61 of microwave suppressor and material outlet 62, to ensure what expanded material passed through
Situation, prevents microwave from escaping, and improves the thermal efficiency, the efficiency of heating surface is further improved in reflecting layer 63 to reduce lossy microwave.
Temperature controller is provided with resonance range 601, temperature controller includes temperature detector and power governor, and control three is humorous
The temperature in region 601 of shaking falls down to be followed successively by 120 DEG C, 160 DEG C and 140 DEG C from above.
Feeding device 1 includes discharging rod 11 and unreeling structure 12, and discharging rod 11 is arranged on the top of material inlet 61；Rewinding
Device 3 includes sizing roller group 31, traction roller group 32 and rolling-up mechanism 33, and sizing roller group 31, which is arranged in cooling zone 5, is located at material
It is provided with to keep sizing roller group 31 to cool down shape with expanded material contact surface in the position of the lower section of outlet 62, and sizing roller group 31
The cooling channel 311 of state.
Isolation strip 21 is included to prevent transmitted wave from entering the absorption reflecting layer 211 of cooling zone 5 and to completely cut off heating zone 4
Heat enters the thermal insulation layer 212 of cooling zone 5, absorbs reflecting layer 211 and uses stainless steel microwave suppressing plate, thermal insulation layer 212 uses stone
Cotton plate.Prevent from completely cutting off heat while microwave leakage, it is ensured that the fixed effect of cooling zone.
Embodiment 2：
It is with the difference of above-described embodiment 1, foaming passage 6 includes a resonance range 601.Resonance range 601 is
Rectangle stereochemical structure, energy regenerative mouthful 73 is symmetrically distributed on two relative side walls of the level of resonance range 601, and is set on the wall of each side
It is equipped with multiple energy regeneratives mouthful 73.Each length of side of resonance range 601 is 915MHz with the vibration frequency f of the transmitted wave of wave source transmitter 71,
Power is 100kw, and the length, width and height of resonance range 601 are respectively 150cm, 50cm and 100cm.Temperature control is provided with resonance range 601
Device, temperature controller includes temperature detector and power governor, and it is 160 DEG C to control the temperature in resonance range 601.
Claims (10)
1. a kind of efficient foaming machine, including, feeding device（1）, Processing Room（2）And material collecting device（3）, it is characterised in that institute
State Processing Room（2）Including：Heating zone to foaming materials（4）With the cooling zone to material shaping（5）, heating zone（4）With
Cooling zone（5）It is connected up and down and the heating zone（4）It is arranged on cooling zone（5）Top；The heating zone（4）Including vertically
The foaming passage of downward strip tee section（6）And to the foaming passage（6）The heating system of interior material heating（7）；
The heating system（7）Including wave source transmitter（71）, waveguide（72）With energy regenerative mouthful（73）, the wave source transmitter（71）
It is arranged on the foaming passage（6）Outside, the energy regenerative mouthful（73）It is arranged on the foaming passage（6）Side wall on, the waveguide
Pipe（72）Two ends respectively with the wave source transmitter（71）With energy regenerative mouthful（73）It is connected；The heating zone（4）And cooling zone（5）
Between be provided with isolation strip（21）.
2. a kind of efficient foaming machine according to claim 1, it is characterised in that the foaming passage（6）Including multiple
Resonance range（601）, the resonance range（601）It is arranged above and below；Each resonance range（601）Inside independent matching has solely
Vertical heating system（7）, resonance range（601）Between be provided with dividing plate（602）.
3. a kind of efficient foaming machine according to claim 2, it is characterised in that the resonance range（601）For rectangle
Stereochemical structure, the energy regenerative mouthful（73）It is symmetrically distributed in resonance range（601）On two relative side walls of level, and each side wall
On be provided with multiple energy regeneratives mouthful（73）.
4. a kind of efficient foaming machine according to claim 3, it is characterised in that the resonance range（601）Each side
The long and energy regenerative mouthful（73）Launch wavelength meets following relation：
Wherein f is emitted frequency, and c is the light velocity, and m, n, p are natural number, and a, b, h are resonance range（601）Length, width and height.
5. a kind of efficient foaming machine according to claim 4, it is characterised in that the vibration frequency f of the transmitted wave is
900MHz~2500MHz, transmission power is 10~100KW.
6. a kind of efficient foaming machine according to claim 3-5 any one, it is characterised in that the energy regenerative mouthful（73）
For disc, the waveguide sources are arranged on energy regenerative mouthful（73）The center of disk, energy regenerative mouthful（73）On be provided with some slots
（731）, slot（731）For rectangle, slot（731）Multigroup, slot is arranged in a linear fashion（731）Using circle disk center in
The heart is arranged in emitting shape, slot（731）Multiple groups are arranged in along emission lines, wherein the slot in every emission lines（731）With
Its length apart from the increase of circle center distance also gradually increases, the slot in the emission lines（731）Quantity is 3-8 bars, adjacent
Slot（731）The distance between be guide wavelength half positive integer times.
7. a kind of efficient foaming machine according to claim 6, it is characterised in that the foaming passage（6）Upper and lower side
It is respectively arranged with the material inlet of bar slit（61）With material outlet（62）, the foaming passage（6）Inwall is provided with reflecting layer
（63）, the material inlet（61）With material outlet（62）It is provided with microwave suppressor.
8. a kind of efficient foaming machine according to claim 7, it is characterised in that the resonance range（601）It is interior to set
There is temperature controller, the temperature controller includes temperature detector and power governor.
9. a kind of efficient foaming machine according to claim 8, it is characterised in that the feeding device（1）Including discharging
Rod（11）And unreeling structure（12）, the discharging rod（11）It is arranged on the material inlet（61）Top；
The material collecting device（3）Including sizing roller group（31）, traction roller group（32）And rolling-up mechanism（33）, the sizing roller group
（31）It is arranged on cooling zone（5）It is interior to be located at material outlet（62）The position of lower section, and the sizing roller group（31）Inside it is provided with use
To keep sizing roller group（31）With the cooling channel of the expanded material contact surface state of cooling（311）.
10. a kind of efficient foaming machine according to claim 9, it is characterised in that the isolation strip（21）Including to
Prevent transmitted wave from entering cooling zone（5）Absorption reflecting layer（211）With to completely cut off heating zone（4）Heat enters cooling zone（5）
Thermal insulation layer（212）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148762.5A CN105711024B (en) | 2016-03-16 | 2016-03-16 | A kind of efficient foaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148762.5A CN105711024B (en) | 2016-03-16 | 2016-03-16 | A kind of efficient foaming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105711024A CN105711024A (en) | 2016-06-29 |
| CN105711024B true CN105711024B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148762.5A Active CN105711024B (en) | 2016-03-16 | 2016-03-16 | A kind of efficient foaming machine |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799809A (en) * | 2004-12-31 | 2006-07-12 | 浙江交联电缆有限公司 | Irradiated crosslinked polyalkene foaming equipment |
| CN201165037Y (en) * | 2008-01-21 | 2008-12-17 | 河南省中原大化集团有限责任公司 | Amino resin foaming continuous microwave oven |
| CN205394971U (en) * | 2016-03-16 | 2016-07-27 | 浙江润阳新材料科技股份有限公司 | High -efficient foaming equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008043646A1 (en) * | 2006-10-13 | 2008-04-17 | Cryovac, Inc. | Heat-resistant molded foam articles and process for their manufacture |
-
2016
- 2016-03-16 CN CN201610148762.5A patent/CN105711024B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799809A (en) * | 2004-12-31 | 2006-07-12 | 浙江交联电缆有限公司 | Irradiated crosslinked polyalkene foaming equipment |
| CN201165037Y (en) * | 2008-01-21 | 2008-12-17 | 河南省中原大化集团有限责任公司 | Amino resin foaming continuous microwave oven |
| CN205394971U (en) * | 2016-03-16 | 2016-07-27 | 浙江润阳新材料科技股份有限公司 | High -efficient foaming equipment |
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| Publication number | Publication date |
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| CN105711024A (en) | 2016-06-29 |
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