CN105583979A - Horizontally-arranged foaming furnace - Google Patents
Horizontally-arranged foaming furnace Download PDFInfo
- Publication number
- CN105583979A CN105583979A CN201610148765.9A CN201610148765A CN105583979A CN 105583979 A CN105583979 A CN 105583979A CN 201610148765 A CN201610148765 A CN 201610148765A CN 105583979 A CN105583979 A CN 105583979A
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- Prior art keywords
- foaming
- resonance range
- slot
- energy regenerative
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention relates to the field of material foaming, in particular to a horizontally-arranged foaming furnace. The horizontally-arranged foaming furnace comprises a feeding device, a processing room and a receiving device. The processing room comprises a heating zone for foaming materials and a cooling zone for shaping the materials, and an isolation area is arranged between the heating zone and the cooling zone. The heating zone comprises a foaming channel and a heating system, and a material inlet and a material outlet which are in a slot shape are formed in the two horizontal ends of the foaming channel correspondingly. A heating system comprises a wave source emitter, a waveguide tube and an energy feedback opening. The feeding device comprises a discharging roll and an unwinding mechanism. The receiving device comprises a shaping roll set, a traction roll set and a winding mechanism. A cooling passage used for keeping the surface, making contact with a foaming material, of the shaping roll set in a cooling state is arranged in the shaping roll set. At least one of the discharging roll and the shaping roll set is provided with a tension adjustment mechanism.
Description
Technical field
The present invention relates to material foaming field, be specifically related to a kind of pressure-bearing type foaming furnace.
Background technology
Foam polyolefin material often adopts foaming furnace to foam in process of production, traditional foaming furnace adopt hot blast,The modes such as steam provide foaming needed hot environment, and foaming furnace passes through the modes such as Electromagnetic Heating or fuel heating to stove conventionallyThe heat temperature raising that inside carries out hot conduction-type, reaches blowing temperature. But, this mode of heating weak effect, expanded material is at stoveInterior travelling speed is slow, and furnace volume is large, and the thermal loss that heating furnace is imported and exported can cause huge to the foaming effect in stoveImpact.
For example, notification number is that the disclosed a kind of irradiated crosslinked polyalkene foaming equipment of CN1799809A and notification number areThe disclosed a kind of polyolefin coiled material foaming machine of CN201195371Y, adopts the mode of horizontal preheating and vertical foaming furnace to polyeneHydrocarbon material carries out foamable, but it exists following problem: 1, firing rate is slow, and heating energy consumption is high. 2, vertical foaming sectionLong, expanded material, in the time of vertical foaming, has certain elongation under Action of Gravity Field, is unfavorable for the sizing of product. 3, vertical furnaceInside be provided with expanding unit, when expanded material is launched, can cause the infringement of material surface, affect end product quality.
Summary of the invention
Object of the present invention, is in order to solve the problem in background technology, and a kind of pressure-bearing type foaming furnace is provided.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of pressure-bearing type foaming furnace, comprises feeding device, Processing Room and material collecting device. Described Processing Room comprises: send out in order to materialThe thermal treatment zone of bubble and in order to the cooling zone of material shaping, the thermal treatment zone and cooling zone level connection joint, the described thermal treatment zone and cooling zone itBetween be provided with isolation strip; The described thermal treatment zone comprises, the foaming passage in horizontally disposed strip cross section and in order to described foamingThe heating system of material heating in passage; The material inlet that the two ends of the level of described foaming passage are respectively arranged with gap-shaped withMaterial outlet; Described heating system comprises, wave source transmitter, waveguide and energy regenerative mouth, described in described wave source transmitter is arranged onFoaming passage outside, described energy regenerative mouth is arranged on the sidewall of described foaming passage, the two ends of described waveguide respectively with described rippleSource transmitter is connected with energy regenerative mouth;
Described feeding device comprises discharging rod and unreeling structure, and described discharging rod is arranged on described material inlet place; Described rewindingDevice comprises setting roll group, carry-over pinch rolls group and rolling-up mechanism, and described setting roll group is arranged on and in cooling zone, is positioned at material outlet placePosition, and in described setting roll group, be provided with to keep the cooling logical of setting roll group and the expanded material contact-making surface state of coolingRoad; In described discharging rod or setting roll group, at least one is provided with governing mechanism of tension, and described governing mechanism of tension comprises levelThe slide rail arranging and the driver in order to drive discharging rod or setting roll group to move horizontally.
Described wave source transmitter is magnetron, and magnetron produces microwave, under the transmission of waveguide, enters and sends out from energy regenerative mouthBubble passage heats material, because heating using microwave is the mode of heating without medium, compares traditional electrical heating or gas heatingMode firing rate quicker, needed heating space is less, the deformation quantity of material in the thermal treatment zone is little, in addition, addsDirectly being connected of hot-zone and cooling zone, after having ensured foaming, the direct cooling and shaping of material, has further reduced processIn deformation, improved end product quality. Described setting roll group comprise multipair between two relatively and there is the setting roll group of different pressuresBecome, in order to repeatedly sizing repeatedly, cooling channel is in order to keep the cooling of setting roll group surface, thus raising fixed effect, tension forceGovernor motion, prevents that expanded material from affecting foaming effect because gravity causes middle bent. Can save conventional level simultaneouslyThe air-floating apparatus of stove, plays energy-saving effect.
As preferably, described foaming vias inner walls is provided with reflecting layer, and described material inlet and material outlet are provided with micro-Ripple TVS, foam polyolefin material mostly is flat belt-like, and material inlet and material that gap-shaped is provided with microwave suppressor having go outMouth can be in the situation that ensures that expanded material passes through, and prevents microwave effusion, improves the thermal efficiency, and damage in order to reduce microwave in reflecting layerConsumption, further improves the efficiency of heating surface.
As preferably, described foaming passage comprises multiple resonance ranges, the mutual level connection joint of described resonance range; Described everyIn individual resonance range, all coupling has independently heating system separately, is provided with dividing plate between resonance range, and multiple resonance ranges canTo realize the control heating of many temperature sections, be convenient to the control of foaming parameter, improve the quality of products.
As preferably, described resonance range is rectangle stereochemical structure, and it is upper and lower that described energy regenerative mouth is symmetrically distributed in resonance rangeOn two relative sidewalls, and on each sidewall, be provided with multiple energy regenerative mouths.
As preferably, each length of side of described resonance range and described wave source transmitter emission wavelength meet following relation:
Wherein f is emitted frequency, and c is the light velocity, and m, n, p are natural number, the length, width and height that a, b, h are resonance range. This condition is trueRelation between vertical resonance range and emission wavelength can ensure, microwave forms standing wave at resonance range, makes resonance rangeThe microwave energy that interior fixed position receives is constant, reaches more stable heating effect. The vibration frequency f of described transmitted wave is900MHz～2500MHz, transmitting power is 10～100KW, in resonance range, include TM010, TM011, TE111, TM110 andOne or more mould fields in TE211 pattern, multimode is mixed the heating uniformity that can improve in resonance range.
As preferably, described energy regenerative mouth is disc, and described waveguide sources is arranged on the center of energy regenerative mouth disk, on energy regenerative mouthBe provided with some slots, slot is rectangle, and slot is arranged in many groups with linear fashion, and slot is centered by circle disk center to be sent outPenetrate shape arrange, slot is arranged in multiple groups along the line of departure, wherein the slot on every line of departure along with apart from distance of center circle fromIncreasing its length also increases gradually.
As preferably, the slot quantity on the described line of departure is 3-8 bar, and the distance between adjacent slot is guide wavelength oneHalf positive integer doubly. In order to ensure that every slot radiation microwave power out equates, ensures stable heating effect.
As preferably, in described resonance range, be provided with temperature controller, described temperature controller comprises Temperature Detector and power tuneJoint device, Temperature Detector is in order to detect the temperature in each resonance range, and changes the merit of magnetron by power governorThereby rate is controlled temperature.
As preferably, described isolation strip comprises preventing that transmitted wave from entering the absorption reflecting layer of cooling zone and in order to isolatedThermal treatment zone heat enters the thermal insulation layer of cooling zone, and described absorption reflecting layer adopts stainless steel microwave suppressing plate, and described thermal insulation layer is adoptedUse asbestos board. When preventing microwave leakage, completely cut off heat, ensured the fixed effect of cooling zone.
In sum, beneficial effect of the present invention:
1. a kind of pressure-bearing type foaming furnace of the present invention, adopts the interconnective thermal treatment zone and cooling zone, makes expanded materialCooling and shaping effective, and make to be independent of each other between the thermal treatment zone and cooling zone by isolation strip.
2. a kind of pressure-bearing type foaming furnace of the present invention, utilizes heating using microwave, and firing rate is fast, and bringing-up section is shorter, andDo not need preheating, resonator is set and makes heating material more even, effectively improved foaming efficiency.
3. a kind of pressure-bearing type foaming furnace of the present invention, little to the destruction on expanded material surface in process, improvesEnd product quality.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of heating system in the present invention;
Fig. 3 is the structural representation of slot in the present invention.
Detailed description of the invention
Following specific embodiment is only explanation of the invention, and it is not limitation of the present invention, art technologyPersonnel are reading after this description and can make to the present embodiment the amendment that there is no creative contribution as required, but as long asWithin the scope of claim of the present invention, be all subject to the protection of Patent Law.
Below in conjunction with accompanying drawing, with embodiment, the present invention is described in detail.
Embodiment 1:
Shown in Fig. 1, Fig. 2, a kind of pressure-bearing type foaming furnace, feeding device 1, Processing Room 2 and material collecting device 3. Processing Room 2 wrapsDraw together: the thermal treatment zone 4 of foaming in order to material and the cooling zone 5 in order to material shaping, the thermal treatment zone 4 and cooling zone 5 level connection joints, heatingBetween district 4 and cooling zone 5, be provided with isolation strip 21; The thermal treatment zone 4 comprises, the foaming passage 6 in horizontally disposed strip cross section withAnd the heating system 7 heating in order to the interior material of the passage 6 that foams; The two ends of the level of foaming passage 6 are respectively arranged with gap-shapedMaterial inlet 61 and material outlet 62; Heating system 7 comprises, wave source transmitter 71, waveguide 72 and energy regenerative mouth 73, wave source transmittingDevice 71 be arranged on foaming passage 6 outside, energy regenerative mouth 73 be arranged on foaming passage 6 sidewall on, the two ends of waveguide 72 respectively with rippleSource transmitter 71 is connected with energy regenerative mouth 73;
Feeding device 1 comprises discharging rod 11 and unreeling structure 12, and discharging rod 11 is arranged on material inlet 61 places; Material collecting device 3 wrapsDraw together setting roll group 31, carry-over pinch rolls group 32 and rolling-up mechanism 33, setting roll group 31 is arranged on and in cooling zone 5, is positioned at material outlet 62 placesPosition, and in setting roll group 31, be provided with to keep the cooling channel of setting roll group 31 and the expanded material contact-making surface state of cooling311; In discharging rod 11 or setting roll group 31, at least one is provided with governing mechanism of tension 8, and governing mechanism of tension 8 comprises that level establishesThe slide rail of putting and the driver in order to drive discharging rod 11 or setting roll group 31 to move horizontally.
Foaming passage 6 inwalls are provided with reflecting layer 63, and material inlet 61 is provided with microwave suppressor having with material outlet 62. Send outBubble passage 6 comprises three resonance ranges 601, and resonance range 601 levels are connected, and are used respectively from material outlet 62 by material inlet 61With preheating, foaming and insulation, each resonance range 601 interior all separately coupling have independently heating system 7, resonance range 601 itBetween separate by dividing plate 602. Resonance range 601 is rectangle stereochemical structure, and it is upper and lower that energy regenerative mouth 73 is symmetrically distributed in resonance range 601On two relative sidewalls, and on each sidewall, be provided with multiple energy regenerative mouths 73. Each length of side of resonance range 601 and energy regenerative mouth 73The frequency f of transmitted wave is 2450MHz, power 50kw, and resonance range 601 length, width and height are respectively 200cm, 40cm and 35cm.
Shown in Fig. 2, Fig. 3, energy regenerative mouth 73 is disc, and waveguide sources is arranged on the center of energy regenerative mouth 73 disks, energy regenerativeOn mouthfuls 73, be provided with some slots 731, slot 731 is rectangle, and slot 731 is arranged in many groups with linear fashion, slot 731 withCentered by circle disk center, be emitting shape and arrange, slot 731 is arranged in multiple groups along the line of departure, the slot on every group of line of departure731 quantity are 5, and the distance between adjacent slot 731 is 73.5mm, and slot 731 width are 6mm, and slot 731 length X 1 are17.58mm, X2 is 19.14mm, and X3 is 21.03mm, and X4 is 24.06mm, and X5 is 28.56mm.
In resonance range 601, be provided with temperature controller, temperature controller comprises Temperature Detector and power governor, control three humorousThe temperature of shaking in region 601 falls down to be followed successively by 120 DEG C, 160 DEG C and 140 DEG C from above.
Isolation strip 21 comprises preventing that transmitted wave from entering the absorption reflecting layer 211 of cooling zone 5 and in order to the isolated thermal treatment zone 4Heat enters the thermal insulation layer 212 of cooling zone 5, absorbs reflecting layer 211 and adopts stainless steel microwave suppressing plate, and thermal insulation layer 212 adopts stoneCotton plate. When preventing microwave leakage, completely cut off heat, ensured the fixed effect of cooling zone.
Embodiment 2:
Be with above-described embodiment 1 difference, foaming passage 6 comprises a resonance range 601. Resonance range 601 is rectangleStereochemical structure, energy regenerative mouth 73 is symmetrically distributed on two relative sidewalls of resonance range 601 levels, and is provided with on each sidewallMultiple energy regenerative mouths 73. The vibration frequency f of each length of side of resonance range 601 and wave source transmitter 71 transmitted waves is 915MHz, powerFor 100kw, resonance range 601 length, width and height are respectively 150cm, 50cm and 100cm. In resonance range 601, be provided with temperature controller, temperatureControl device comprises Temperature Detector and power governor, and the temperature of controlling in resonance range 601 is 160 DEG C.
Claims (9)
1. a pressure-bearing type foaming furnace, comprises, feeding device (1), Processing Room (2) and material collecting device (3), is characterized in that instituteStating Processing Room (2) comprising: in order to the thermal treatment zone (4) of material foaming with in order to the cooling zone (5) of material shaping, the thermal treatment zone (4) andCooling zone (5) level connection joint, is provided with isolation strip (21) between the described thermal treatment zone (4) and cooling zone (5); The described thermal treatment zone (4)Comprise the foaming passage (6) in horizontally disposed strip cross section and the heating in order to the interior material heating of described foaming passage (6)System (7); The two ends of the level of described foaming passage (6) are respectively arranged with material inlet (61) and the material outlet of gap-shaped(62); Described heating system (7) comprises, wave source transmitter (71), waveguide (72) and energy regenerative mouth (73), described wave source transmitter(71) be arranged on outside described foaming passage (6), described energy regenerative mouth (73) is arranged on the sidewall of described foaming passage (6), described inThe two ends of waveguide (72) are connected with energy regenerative mouth (73) with described wave source transmitter (71) respectively;
Described feeding device (1) comprises discharging rod (11) and unreeling structure (12), and described discharging rod (11) is arranged on described materialImport (61) is located; Described material collecting device (3) comprises setting roll group (31), carry-over pinch rolls group (32) and rolling-up mechanism (33), described fixedForming roll group (31) is arranged on and in cooling zone (5), is positioned at material outlet (62) and locates position, and is provided with in described setting roll group (31)In order to keep the cooling channel (311) of setting roll group (31) and the expanded material contact-making surface state of cooling;
In described discharging rod (11) or setting roll group (31), at least one is provided with governing mechanism of tension (8), described tension adjustmentMechanism (8) comprises horizontally disposed slide rail and the driver in order to drive discharging rod (11) or setting roll group (31) to move horizontally.
2. a kind of pressure-bearing type foaming furnace according to claim 1, is characterized in that, described foaming passage (6) inwall settingHave reflecting layer (63), described material inlet (61) is provided with microwave suppressor having with material outlet (62).
3. a kind of pressure-bearing type foaming furnace according to claim 2, is characterized in that, described foaming passage (6) comprises multipleResonance range (601), described resonance range (601) is level connection joint mutually; In described each resonance range (601), all mate separatelyThere is independently heating system (7), between resonance range (601), be provided with dividing plate (602).
4. a kind of pressure-bearing type foaming furnace according to claim 3, is characterized in that, described resonance range (601) is rectangleStereochemical structure, described energy regenerative mouth (73) is symmetrically distributed on resonance range (601) two sidewalls opposing upper and lower, and each sidewallOn be provided with multiple energy regenerative mouths (73).
5. a kind of pressure-bearing type foaming furnace according to claim 4, is characterized in that, each limit of described resonance range (601)Long and described wave source transmitter (71) emission 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 the length, width and height of resonance range (601), described inThe vibration frequency f of transmitted wave is 900MHz～2500MHz, and transmitting power is 10～100KW.
6. the efficient foaming machine of one according to claim 5, is characterized in that, described energy regenerative mouth (73) is disc,Described waveguide sources is arranged on the center of energy regenerative mouth (73) disk, is provided with some slots (731), slot on energy regenerative mouth (73)(731) be rectangle, slot (731) is arranged in many groups with linear fashion, and slot (731) is emitting shape centered by circle disk centerArrange, slot (731) is arranged in multiple groups along the line of departure, and wherein the slot (731) on every line of departure is along with apart from the center of circleIts length of the increase of distance also increases gradually.
7. the efficient foaming machine of one according to claim 6, is characterized in that, the slot (731) on the described line of departureQuantity is 3-8 bar, and between adjacent slot (731), distance is the positive integer times of guide wavelength half.
8. a kind of pressure-bearing type foaming furnace according to claim 7, is characterized in that, in described resonance range (601), arrangesHave temperature controller, described temperature controller comprises Temperature Detector and power governor.
9. a kind of pressure-bearing type foaming furnace according to claim 8, is characterized in that, described isolation strip (21) comprise with in caseOnly transmitted wave enters the absorption reflecting layer (211) of cooling zone (5) and enters cooling zone (5) in order to the isolated thermal treatment zone (4) heatThermal insulation layer (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148765.9A CN105583979A (en) | 2016-03-16 | 2016-03-16 | Horizontally-arranged foaming furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148765.9A CN105583979A (en) | 2016-03-16 | 2016-03-16 | Horizontally-arranged foaming furnace |
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| Publication Number | Publication Date |
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| CN105583979A true CN105583979A (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610148765.9A Pending CN105583979A (en) | 2016-03-16 | 2016-03-16 | Horizontally-arranged foaming furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352894A (en) * | 2018-11-02 | 2019-02-19 | 郑州峰泰纳米材料有限公司 | A kind of continuous uniformity foam device of melamine bubble |
| CN111775571A (en) * | 2020-07-10 | 2020-10-16 | 陈紫璇 | Three-dimensional pattern printing equipment for non-woven fabric |
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| CN205439004U (en) * | 2016-03-16 | 2016-08-10 | 浙江润阳新材料科技股份有限公司 | Horizontal formula foaming furnace |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352894A (en) * | 2018-11-02 | 2019-02-19 | 郑州峰泰纳米材料有限公司 | A kind of continuous uniformity foam device of melamine bubble |
| CN111775571A (en) * | 2020-07-10 | 2020-10-16 | 陈紫璇 | Three-dimensional pattern printing equipment for non-woven fabric |
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Application publication date: 20160518 |
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