CN108466399A - A kind of absorption polyurethane thermal insulation board foaming method - Google Patents
A kind of absorption polyurethane thermal insulation board foaming method Download PDFInfo
- Publication number
- CN108466399A CN108466399A CN201810283193.4A CN201810283193A CN108466399A CN 108466399 A CN108466399 A CN 108466399A CN 201810283193 A CN201810283193 A CN 201810283193A CN 108466399 A CN108466399 A CN 108466399A
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- China
- Prior art keywords
- raw material
- reaction
- conveying pipeline
- connecting cylinder
- thermal insulation
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- Pending
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 25
- 239000004814 polyurethane Substances 0.000 title claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 143
- 239000002994 raw material Substances 0.000 claims abstract description 141
- 238000003756 stirring Methods 0.000 claims abstract description 40
- 239000006260 foam Substances 0.000 claims abstract description 36
- 238000005266 casting Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000012153 distilled water Substances 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000005587 bubbling Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 17
- 238000002156 mixing Methods 0.000 description 16
- 239000007788 liquid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 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
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
-
- 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
-
- 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
- B29C44/3442—Mixing, kneading or conveying the foamable material
- B29C44/3446—Feeding the blowing agent
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to polyurethane synthesis foaming technique fields, specifically a kind of absorption polyurethane thermal insulation board foaming method, including step 1 to step 4, step 1 and step 2 are realized and are pre-processed to raw material, and step 3 and step 4 are for making raw material carry out foamable reaction and moulding by casting；The foam device that this method uses includes foamed pot, stirring module and reaction module；Suction head is fixedly mounted on the outer surface of connecting cylinder by conveying pipeline, and conveying pipeline is used in the feedstock transportation to connecting cylinder in suction head, and No. two agitating units are for coordinating conveying pipeline to be stirred raw material；Cover board by hollow rotating shaft rotate on the upper plate of foamed pot；Reaction module is located at the inside of connecting cylinder, and reaction module carries out foamable reaction for the cylinder that is connected to raw material.Present invention is mainly used for thermal insulation material is produced in enormous quantities, the scrap rates of bubble in expanding foam solution can be reduced, the bubbling efficiency of raw material is improved.
Description
Technical field
The invention belongs to polyurethane synthesis foaming technique field, specifically a kind of absorption polyurethane thermal insulation board foaming
Method.
Background technology
As Modern Family living space is nervous, domestic refrigerator product to be thinning demand increasingly strong.In refrigerator thin-walled
In the manufacturing process of product, due to refrigerator wall thickness reduction, foaming layer heat-insulating property is caused to be deteriorated, mechanical strength variation, in structure
Complicated edge foaming raw material insufficient flow occurs filling unreal phenomenon.And the widely used pentamethylene of current refrigerator institute
Foaming system cannot meet the technical need for being thinning product, therefore develop the foaming of high fluidity, high heat insulating ability, high intensity
System is imperative, in polyurethane foam technical field, the uniformity and raw material of reaction raw materials stirring and filling for water contact
Point property affects the quality of foamed products.
Invention content
In order to make up for the deficiencies of the prior art, the present invention proposes a kind of absorption polyurethane thermal insulation board foaming method, this
Invention is mainly used for producing thermal insulation material in enormous quantities, can improve the uniformity of raw material, can reduce the broken of bubble in expanding foam solution
Broken rate.The present invention is realized and is pre-processed to raw material by step 1 and step 2 mutual cooperation, and the present invention passes through step
Three and step 4 cooperation so that raw material is carried out foamable reaction and moulding by casting；Meanwhile the present invention passes through suction head, conveying pipeline, two
Number agitating unit and connecting cylinder cooperation realize the flow-type mixing to raw material, and the present invention is ground by No.1 agitating device and No. two
Mill apparatus cooperation is realized further is crushed stirring to raw material, improves the bubbling efficiency of raw material.
The technical solution adopted by the present invention to solve the technical problems is：A kind of absorption polyurethane of the present invention is protected
Warm plate foaming method, this method use foam device；The foam device includes foamed pot, stirring module and reaction module；Its
In, the structure and principle of foamed pot are neither the innovations of this case, and details are not described herein；The stirring module is located at foamed pot
Inside, the stirring module includes suction head, conveying pipeline, No. two agitating units and connecting cylinder；The suction head passes through conveying
Pipe is fixedly mounted on the outer surface of connecting cylinder, and the conveying pipeline is used in the feedstock transportation to connecting cylinder in suction head, described
No. two agitating units are fixedly mounted on by No. three connecting rods on the inner wall of conveying pipeline, and No. two agitating units are for coordinating conveying pipeline
Raw material is stirred；The connecting cylinder includes cover board and No. two side plates；No. two side plates are fixedly mounted on the following table of cover board
Face, the cover board by hollow rotating shaft rotate on the upper plate of foamed pot；No. two surface of side plate are equipped with No. two
Opening；The reaction module is located at the inside of connecting cylinder, and reaction module carries out foamable reaction for the cylinder that is connected to raw material；Work
When making, motor drives connecting cylinder to rotate by hollow rotating shaft, to make the reaction raw materials in foamed pot pass through suction head, conveying pipeline
It is pooled to inside connecting cylinder, the reaction raw materials inside connecting cylinder flow to foamed pot again by the bottom of No. two openings and connecting cylinder
In, to make the reaction raw materials in foamed pot flow, and then realize the flow-type mixing of reaction raw materials；Meanwhile No. two stirrings
Unit matching conveying pipeline hits the raw material of flowing, and then improves stirring efficiency of the stirring module to reaction raw materials；Instead
Answer module for carrying out foamable reaction to the reaction raw materials inside connecting cylinder, connecting cylinder is used to create closed loop for foamable reaction
Border, to effectively prevent the broken of bubble in expanding foam solution；Expanding foam solution is reentered by the bottom of No. two openings and connecting cylinder
Into foamed pot, and then realize the duration foaming of reaction raw materials.
No. two agitating units include No.1 agitating device and No. two grinding devices, the No.1 agitating device for pair
Raw material inside conveying pipeline is stirred；No. two grinding devices are for being ground the raw material in conveying pipeline；Described one
Number agitating device includes that No.1 mounting box, No.1 rotor plate, No.1 supporting rod, No.1 sliding panel, No.1 fixed plate, No.1 fold
Pipe and No. two folded tubes, the No.1 fixed plate are fixedly mounted on the lower surface of No.1 rotor plate by No.1 supporting rod；It is described
No.1 sliding panel is slidably mounted on No.1 supporting rod；No.1 sliding panel is connect by spring with No.1 fixed plate；Described one
Number folded tube is for closing spring；The rotation of the No.1 rotor plate rotation is mounted in No.1 mounting box, No.1
No. two folded tubes are installed between rotor plate and the inner wall of No.1 mounting box；When suction head and conveying pipeline rotate, reaction
Raw material is hit with No.1 sliding panel, and No.1 sliding panel generates concussion by coordinating with spring and No.1 fixed plate, to
Reaction raw materials in conveying pipeline are shaken, and then improve the efficiency of reaction raw materials mixing；No. two folded tubes are for preventing
Reaction solution is flowed into the inside of No.1 mounting box；Meanwhile No. two folded tubes itself can rotate a certain angle, No. two folded tubes
By coordinating the angle that the reciprocal rotation of No.1 rotor plate can be made certain with No.1 mounting box, to drive No.1 sliding panel and one
Number fixed plate makees reciprocal spinning motion, and then improves the efficiency that raw material mixes in conveying pipeline.
No. two grinding devices include No. two mounting boxs, No. two rotor plates, No. two supporting racks and No. two ball camber grindings
Cover；No. two mounting boxs are same component with No.1 mounting box；No. two rotor plates and No.1 rotor plate are same component；
No. two ball cambers grinding cover is fixedly connected by No. two supporting racks with No. two rotor plates；In No. two ball cambers grinding cover
It is uniformly provided with multiple filter hole；The inner surface of No. two ball cambers grinding cover be spherical arc shape for improve No. two ball cambers grinding covers with
The contact area of reaction raw materials, in rotation, reaction raw materials and No. two ball camber grinding covers squeeze conveying pipeline, to make two
The reaction raw materials in number ball camber grinding cover left side are extruded discharge by filter hole, to make the particle in reaction raw materials be filtered
Hole attrition crushing, and then improve the efficiency of the mixing of reaction raw materials in feeding tube.
This method comprises the following steps：
Step 1：By in advance through dehydration polyurethane polyol and ammonia catalyst be added in foamed pot, startup is stirred
Module is mixed, foamed pot is warming up to 80 degree, keeps the temperature one hour；Step 1 is used to that reaction raw materials to be stirred and be kept the temperature, to
Make reaction raw materials fast melt, and then improves the uniformity of reaction raw materials thawing.
Step 2：Isocyanates and foam stabiliser are added in the mixture of step 1, foamed pot is warming up to one
It 130 degree, persistently stirs five minutes；Step 2 is for making reaction raw materials reach blowing temperature, and step 2 with step 3 by matching
It shares in the efficiency for improving reaction raw materials and water generation foamable reaction.
Step 3：Distilled water is added in the mixture in step 2；Persistently stir 30 minutes；Distilled water passes through confession
The inside that water pipe flows to connecting cylinder carries out foamable reaction, to reduce the scrap rates of bubble in expanding foam solution, and then improves
The air content of bubble liquid.
Step 4：Reactant in step 3 is subjected to moulding by casting.
Preferably, the upper surface of the No.1 sliding panel is uniformly provided with multiple impact blocks, and the impact block is used for dome-type
In the impact area for improving No.1 sliding panel and reaction raw materials, to improve collision efficiency of the impact block to reaction raw materials；Institute
It states and is equipped with No. two knocking gears between impact block；No. two knocking gears are for being homogenized the raw material in conveying pipeline；No. two are hit
Mechanism is hit for coordinating impact block to hit reaction raw materials, to improve the mixing homogenization efficiency of reaction raw materials.
Preferably, No. two knocking gears include No. two crash panels, No. two limiting plates and No. two connecting rods；Described No. two
The upper end ball-joint of crash panel and No. two connecting rods；No. two limiting plates are for limiting No. two crash panels；Described two
The upper surface of number crash panel is corrugated, and the surface of No. two crash panels is set as corrugated for particle present in reaction raw materials
It is crushed, to improve the efficiency of reaction raw materials mixing homogenizing.
Preferably, the suction head is cylinder type, and the outer end of suction head is installed with drainage hood, and the drainage hood is circle
Bench-type, drainage hood by coordinating the efficiency that is flowed into conveying pipeline for increasing reaction raw materials in foamed pot with suction head, to
Improve the stirring efficiency of reaction raw materials.
Preferably, bidirectional screw silk is installed in the filter hole, bidirectional screw silk is used for anti-in filter hole
Raw material is answered to be cut, simultaneously bi-directionally there is taenidium certain elasticity, taenidium can be prevented by the elastic deformation of itself
Reaction raw materials plug filter hole, to improve cutting efficiency of the filter hole to reaction raw materials.
Preferably, the reaction module includes feed pipe, swivel plate and hinge bar, the peace of the upper end rotation of the feed pipe
Mounted in the lower surface of cover board；The outer wall of the feed pipe is hinged on by hinge bar on the inner wall of No. two side plates；It is described hinged
Bar is sliding extension bar；The side wall of the feed pipe is equipped with No. three water outlets；The swivel plate passes through uniform cloth from top to bottom
It sets on the outer wall of feed pipe；Distilled water is flowed to by hollow rotating shaft in feed pipe, and the water in feed pipe is discharged by No. three
Mouth flows to the inside of connecting cylinder, to make the reaction raw materials inside connecting cylinder carry out foamable reaction, feed pipe by with connecting cylinder
Cooperation can effectively prevent the broken of bubble in expanding foam solution and be lost in, to improve the efficiency of foaming, stirring module pass through by
Expanding foam solution inside connecting cylinder is swapped with external reaction raw materials to make reaction solution fully foam, to improve expanding foam solution
The uniformity of middle bubble；When motor by hollow rotating shaft drive connecting cylinder make intermittent reciprocating rotation when, hinge bar by with even
Connect cylinder coordinates to make feed pipe is opposite to make reciprocating rotation with connecting cylinder, to drive swivel plate to carry out the reaction solution in connecting cylinder
Stirring, and then improve the rate of foamable reaction.
Preferably, the left and right ends of the swivel plate are vertically equipped with multiple No. four openings, and No. four openings are length
Rectangular, the upper surface of the swivel plate is equipped with the round platform mouth through swivel plate, and stirring blade is fixed by the bracket mounted on round platform
In mouthful；No. four openings are for coordinating the raw material inside No. two side plates of swivel plate pair to be stirred；Stirring blade is used for rotation
Reaction raw materials above flap are stirred, to make the gas generated in foamable reaction be dispersed in reaction solution, to
The uniformity of bubble in expanding foam solution is improved, and then improves the consistency of air bubble content in expanding foam solution.
Preferably, the cross sectional shape of No. four openings is Λ fonts, equal to make No. four openings carry out reaction raw materials
When change, No. four openings are not easy to be blocked by raw material；Bore at No. four opening both ends is more than the bore of No. four opening centers,
It is flowed rapidly into No. four openings convenient for reaction raw materials, while the raw material in No. four openings quickly flows out；At No. four opening both ends
Bore be more than the bores of No. four opening centers, crushed for making the raw material of bulky grain be squeezed by No. four openings, to carry
The efficiency of high-foaming reaction.
Preferably, the center of No. four open lower end inner walls is equipped with No. five rectangular channels；In No. five rectangular channels
Equipped with No. five seismic mass；No. five seismic mass are fixedly mounted on by spring in No. five rectangular channels；No. five seismic mass are
Pentagonal prism type；No. five seismic mass make unbroken raw material pass through No. four openings by coordinating with No. five rectangular channels, spring, to
The case where effectivelying prevent raw material to block No. four openings, and then improve the efficiency of raw material mixing.
The beneficial effects of the invention are as follows：
1. a kind of absorption polyurethane thermal insulation board foaming method of the present invention, the present invention includes step 1 to step
Four, step 1 and step 2 are for handling reaction raw materials, to make reaction raw materials reach the condition of foamable reaction, in turn
Improve the bubbling efficiency of reaction raw materials and distilled water in step 3；Foamable reaction in step 3 is carried out in the inside of connecting cylinder
Reaction advantageously reduces the broken and loss of bubble in expanding foam solution, to improve the efficiency of foamable reaction in step 3.
2. a kind of absorption polyurethane thermal insulation board foaming method of the present invention, the stirring module include suction head,
Conveying pipeline, No. two agitating units and connecting cylinder；The suction head, conveying pipeline with connecting cylinder by coordinating come to anti-in foamed pot
Raw material is answered to carry out flow-type stirring；No. two agitating units by with conveying pipeline cooperation to the raw material by conveying pipeline carry out hit and
It rolls, to improve the broken efficiency of reaction raw materials, and then improves the efficiency of reaction raw materials mixing homogenizing.
3. a kind of absorption polyurethane thermal insulation board foaming method of the present invention, No. two agitating units include No.1
Agitating device and No. two grinding devices；No.1 agitating device is used to carry out impacting type stirring, No. two grinding devices to reaction raw materials
It is ground for coordinating No.1 agitating device further to cut reaction raw materials；No. two ball cambers grinding cover in No. two grinding devices
Compaction type can be carried out to reaction raw materials to be crushed, while being equipped with bidirectional screw silk in the filter hole in No. two ball cambers grinding covers,
To improve crushing efficiency of the filter hole to reaction raw materials, and then improve the efficiency of reaction raw materials mixing.
4. a kind of absorption polyurethane thermal insulation board foaming method of the present invention, the reaction module include feed pipe,
Swivel plate and hinge bar；The feed pipe is used for the delivered inside distilled water to connecting cylinder, and the hinge bar is for making feed pipe
It can be rotated relative to connecting cylinder；The swivel plate is for making the bubble of expanding foam solution in connecting cylinder inside be uniformly distributed；The hinge
Extension bar can be rotated by realizing feed pipe with feed pipe cooperation relative to connecting cylinder, to keep the reaction inside connecting cylinder former
Material and water come into full contact with；And then improve the bubbling efficiency of reaction raw materials；Hinge bar, feed pipe are realized by coordinating with swivel plate
Swivel plate is rotated relative to connecting cylinder, to improve the mixing efficiency of connecting cylinder internal-response raw material, and then improves hair
Steep the uniformity that bubble disperses in liquid.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the process flow chart of the present invention；
Fig. 2 is the sectional view of foam device in the present invention；
Fig. 3 is A-A sectional views in Fig. 2；
Fig. 4 is the partial enlarged view of B in Fig. 2；
Fig. 5 is C-C sectional views in Fig. 3；
Fig. 6 is the partial enlarged view of D in Fig. 3；
Fig. 7 is the partial enlarged view of E in Fig. 6；
Fig. 8 is the partial enlarged view of F in Fig. 6；
Fig. 9 is G-G sectional views in Fig. 8；
Figure 10 is H-H sectional views in Fig. 4；
Figure 11 is J-J sectional views in Figure 10；
In figure：Foamed pot 1, reaction module 3, suction head 21,22, No. two agitating units 23 of conveying pipeline, connects stirring module 2
The connecting rod 231, two of connect cylinder 24, three opening 25, No.1 agitating device 4, No. two grinding devices 5, No.1 mounting box 41, No.1s
47, No. two rotor plate 42, No.1 supporting rod 43, No.1 sliding panel 45, No.1 fixed plate 46, No.1 folded tube folded tubes 48, two
Number ball camber of supporting rack 53, two of rotor plate 52, two of mounting box 51, two grinding cover 54, filter hole 541, impact block 452,
62, No. two connecting rods 63 of No. two limiting plates of crash panel 61, two of knocking gear 6, two, drainage hood 211, bidirectional screw silk 543,
Feed pipe 31, swivel plate 32, the water outlet 311, four of hinge bar 33, three opening 321,322, No. five rectangular channels 323 of round platform mouth,
No. five seismic mass 324.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific implementation mode is closed, the present invention is further explained.
As shown in Figure 1 to 11, a kind of absorption polyurethane thermal insulation board foaming method of the present invention, this method use
Foam device；The foam device includes foamed pot 1, stirring module 2 and reaction module 3；Wherein, the structure and original of foamed pot 1
Reason is neither the innovation of this case, and details are not described herein；The stirring module 2 is located at the inside of foamed pot 1, the stirring mould
Block 2 includes suction head 21,22, No. two agitating units 23 of conveying pipeline and connecting cylinder 24；The suction head 21 is solid by conveying pipeline 22
Dingan County is mounted in the outer surface of connecting cylinder 24, and the conveying pipeline 22 is used in the feedstock transportation in suction head 21 to connecting cylinder 24,
No. two agitating units 23 are fixedly mounted on by No. three connecting rods 231 on the inner wall of conveying pipeline 22, No. two agitating units 23
For coordinating conveying pipeline 22 to be stirred raw material；The connecting cylinder 24 includes cover board and No. two side plates；No. two side plates are solid
Dingan County be mounted in cover board lower surface, the cover board by hollow rotating shaft rotate on the upper plate of foamed pot 1；Described two
Number surface of side plate is equipped with No. two openings 25；The reaction module 3 is located at the inside of connecting cylinder 24, and reaction module 3 connects for coordinating
Connect cylinder 24 carries out foamable reaction to raw material；When work, motor drives connecting cylinder 24 to rotate by hollow rotating shaft, to make foamed pot
Reaction raw materials in 1 are pooled to by suction head 21, conveying pipeline 22 inside connecting cylinder 24, and the reaction raw materials inside connecting cylinder 24 are logical
The bottom for crossing No. two openings 25 and connecting cylinder 24 is flowed to again in foamed pot 1, to make the reaction raw materials in foamed pot 1 flow,
And then realize the flow-type mixing of reaction raw materials；Meanwhile No. two agitating units 23 coordinate conveying pipelines 22 to the raw material of flowing into
Row is hit, and then improves stirring efficiency of the stirring module 2 to reaction raw materials；Reaction module 3 is used for inside to connecting cylinder 24
Reaction raw materials carry out foamable reaction, and connecting cylinder 24 is used to create closed environment for foamable reaction, to effectively prevent expanding foam solution
Middle bubble is crushed；Expanding foam solution is re-entered by the bottom of No. two openings 25 and connecting cylinder 24 in foamed pot 1, and then is realized
The duration foaming of reaction raw materials.
No. two agitating units 23 include No.1 agitating device 4 and No. two grinding devices 5, the No.1 agitating device 4
For being stirred to the raw material inside conveying pipeline 22；No. two grinding devices 5 are used to carry out the raw material in conveying pipeline 22
Grinding；The No.1 agitating device 4 includes No.1 mounting box 41, No.1 rotor plate 42, No.1 supporting rod 43, No.1 sliding panel
45, No.1 fixed plate 46, No.1 folded tube 47 and No. two folded tubes 48, the No.1 fixed plate 46 are solid by No.1 supporting rod 43
Dingan County is mounted in the lower surface of No.1 rotor plate 42；The No.1 sliding panel 45 is slidably mounted on No.1 supporting rod 43；No.1
Sliding panel 45 is connect by spring with No.1 fixed plate 46；The No.1 folded tube 47 is for closing spring；Described one
The rotation that number rotor plate 42 rotates is mounted in No.1 mounting box 41, the inner wall of No.1 rotor plate 42 and No.1 mounting box 41 it
Between be installed with No. two folded tubes 48；When suction head 21 and conveying pipeline 22 rotate, reaction raw materials are sent out with No.1 sliding panel 45
Raw to hit, No.1 sliding panel 45 generates concussion by coordinating with spring and No.1 fixed plate 46, to in conveying pipeline 22
Reaction raw materials are shaken, and then improve the efficiency of reaction raw materials mixing；No. two folded tubes 48 are for preventing reaction solution from flowing into
To the inside of No.1 mounting box 41；Meanwhile No. two folded tubes 48 itself can rotate a certain angle, No. two folded tubes 48 pass through
Coordinate the angle that the 42 reciprocal rotation of No.1 rotor plate can be made certain with No.1 mounting box 41, to drive 45 He of No.1 sliding panel
No.1 fixed plate 46 makees reciprocal spinning motion, and then improves the efficiency that raw material mixes in conveying pipeline 22.
No. two grinding devices 5 include No. two supporting racks 53 of rotor plate 52, two of mounting box 51, two and No. two ball arcs
Type grinding cover 54；No. two mounting boxs 51 are same component with No.1 mounting box 41；No. two rotor plates 52 and No.1 turn
Movable plate 42 is same component；No. two ball cambers grinding cover 54 is fixed and is connected by No. two supporting racks 53 and No. two rotor plates 52
It connects；It is uniformly provided with multiple filter hole 541 in No. two ball cambers grinding cover 54；The inner surface of No. two ball cambers grinding cover 54 is
Spherical arc shape is used to improve the contact area of No. two ball camber grinding covers 54 and reaction raw materials, and for conveying pipeline 22 in rotation, reaction is former
Material and No. two ball camber grinding covers 54 squeeze, to make the reaction raw materials in No. two 54 left sides of ball camber grinding cover pass through filtering
Hole 541 is extruded discharge, to make the particle in reaction raw materials by 541 attrition crushing of filter hole, and then improves in feeding tube
The efficiency of the mixing of reaction raw materials.
This method comprises the following steps：
Step 1：By in advance through dehydration polyurethane polyol and ammonia catalyst be added in foamed pot 1, startup is stirred
Module 2 is mixed, foamed pot 1 is warming up to 80 degree, keeps the temperature one hour；Step 1 is used to that reaction raw materials to be stirred and be kept the temperature, from
And make reaction raw materials fast melt, and then improve the uniformity of reaction raw materials thawing.
Step 2：Isocyanates and foam stabiliser are added in the mixture of step 1, foamed pot 1 is warming up to one
It 130 degree, persistently stirs five minutes；Step 2 is for making reaction raw materials reach blowing temperature, and step 2 with step 3 by matching
It shares in the efficiency for improving reaction raw materials and water generation foamable reaction.
Step 3：Distilled water is added in the mixture in step 2；Persistently stir 30 minutes；Distilled water passes through confession
The inside that water pipe 31 flows to connecting cylinder 24 carries out foamable reaction, to reduce the scrap rates of bubble in expanding foam solution, Jin Erti
The high air content of bubble liquid.
Step 4：Reactant in step 3 is subjected to moulding by casting.
As one embodiment of the present invention, the upper surface of the No.1 sliding panel 45 is uniformly provided with multiple impact blocks
452, the impact block 452 is the impact area that dome-type is used to improve No.1 sliding panel 45 and reaction raw materials, to improve
Collision efficiency of the impact block 452 to reaction raw materials；No. two knocking gears 6 are equipped between the impact block 452；No. two knocking gears
6 for being homogenized the raw material in conveying pipeline 22；No. two knocking gears 6 are for coordinating impact block 452 to carry out reaction raw materials
It hits, to improve the mixing homogenization efficiency of reaction raw materials.
As one embodiment of the present invention, No. two knocking gears 6 include 61, No. two limiting plates of No. two crash panels
62 and No. two connecting rods 63；The upper end ball-joint of No. two crash panels 61 and No. two connecting rods 63；No. two limiting plates 62
For being limited to No. two crash panels 61；The upper surface of No. two crash panels 61 is corrugated, the table of No. two crash panels 61
Face is set as corrugated for being crushed to particle present in reaction raw materials, to improve the effect of reaction raw materials mixing homogenizing
Rate.
As one embodiment of the present invention, the suction head 21 is cylinder type, and the outer end of suction head 21 is fixedly mounted
It is circular platform type to have drainage hood 211, the drainage hood 211, and drainage hood 211 with suction head 21 by coordinating for increasing foamed pot 1
Middle reaction raw materials are flowed into the efficiency in conveying pipeline 22, to improve the stirring efficiency of reaction raw materials.
As one embodiment of the present invention, bidirectional screw silk 543 is installed in the filter hole 541, it is two-way
Taenidium 543 is for cutting the reaction raw materials in filter hole 541, and simultaneously bi-directionally taenidium 543 has certain elasticity,
Taenidium can prevent reaction raw materials plug filter hole 541 by the elastic deformation of itself, to improve filter hole 541 to anti-
Answer the cutting efficiency of raw material.
As one embodiment of the present invention, the reaction module 3 includes feed pipe 31, swivel plate 32 and hinge bar
33, the rotation of the upper end of the feed pipe 31 mounted on the lower surface of cover board；The outer wall of the feed pipe 31 passes through hinge bar 33
To be hinged on the inner wall of No. two side plates；The hinge bar 33 is sliding extension bar；The side wall of the feed pipe 31 is equipped with three
Number water outlet 311；The swivel plate 32 by being evenly arranged on the outer wall of feed pipe 31 from top to bottom；Distilled water passes through hollow
Shaft flows in feed pipe 31, and the water in feed pipe 31 flows to the inside of connecting cylinder 24 by No. three water outlets 311, to make
Reaction raw materials inside connecting cylinder 24 carry out foamable reaction, and feed pipe 31 with the cooperation of connecting cylinder 24 by that can effectively prevent foaming
It bubble broken and is lost in liquid, to improve the efficiency of foaming, stirring module 2 is by by the expanding foam solution inside connecting cylinder 24
It is swapped with external reaction raw materials to make reaction solution fully foam, to improve the uniformity of bubble in expanding foam solution；When
When motor drives connecting cylinder 24 to make intermittent reciprocating rotation by hollow rotating shaft, hinge bar 33 is made by coordinating with connecting cylinder 24
Feed pipe 31 is opposite to make reciprocating rotation with connecting cylinder 24, to drive swivel plate 32 to stir the reaction solution in connecting cylinder 24
It mixes, and then improves the rate of foamable reaction.
As one embodiment of the present invention, the left and right ends of the swivel plate 32 are vertically equipped with multiple four
Number opening 321, No. four openings 321 are rectangle, and the upper surface of the swivel plate 32 is equipped with the round platform mouth through swivel plate 32
322, stirring blade is fixed by the bracket in round platform mouth 322；No. four openings 321 are for coordinating swivel plate 32 to two
Raw material inside number side plate is stirred；Stirring blade is used to be stirred the reaction raw materials of 32 top of swivel plate, to make
The gas generated in foamable reaction is dispersed in reaction solution, to improve the uniformity of bubble in expanding foam solution, Jin Erti
The consistency of air bubble content in high expanding foam solution.
As one embodiment of the present invention, the cross sectional shape of No. four openings 321 is Λ fonts, to make No. four
When 321 pairs of reaction raw materials of opening are homogenized, No. four openings 321 are not easy to be blocked by raw material；Mouth at No. four 321 both ends of opening
Diameter is more than the bore of No. four 321 centers of opening, is flowed rapidly into No. four openings 321 convenient for reaction raw materials, while No. four
Raw material in opening 321 quickly flows out；Bore at No. four 321 both ends of opening is more than the bore of No. four 321 centers of opening,
It is crushed for making the raw material of bulky grain be squeezed by No. four openings 321, to improve the efficiency of foamable reaction.
As one embodiment of the present invention, the center of 321 lower end inner walls of No. four openings is equipped with No. five squares
Shape slot 323；No. five seismic mass 324 are equipped in No. five rectangular channels 323；No. five seismic mass 324 are fixed by spring pacifies
In No. five rectangular channels 323；No. five seismic mass 324 are pentagonal prism type；No. five seismic mass 324 by with No. five rectangular channels
323, spring coordinates to make unbroken raw material pass through No. four openings 321, to effectively prevent No. four openings 321 of raw material blocking
Situation, and then improve the efficiency of raw material mixing.
When work, solid reaction raw material is added in foamed pot 1, and foamed pot 1 carries out heating and melting to raw material, and motor passes through
Hollow rotating shaft drives 24 intermittent rotation of connecting cylinder；Relative to connecting cylinder 24 intermittent rotation occurs for feed pipe 31；Reaction raw materials
It is flowed into conveying pipeline 22 by suction head 21, it is broken that the No.1 sliding panel 45 in conveying pipeline 22 carries out collision to reaction raw materials first
Broken, then No. two ball cambers grinding 54 pairs of reaction raw materials of cover in conveying pipeline 22, which cut, grinds；Then in conveying pipeline 22
Reaction raw materials are flowed into the inside of connecting cylinder 24, and distilled water is flowed by hollow rotating shaft in feed pipe 31, in feed pipe 31
Distilled water is flowed to by No. three water outlets 311 in connecting cylinder 24, and distilled water with the reaction raw materials in connecting cylinder 24 foam anti-
It answers；When 31 intermittent rotation of feed pipe, swivel plate 32 stirs evenly the expanding foam solution of reaction, and then expanding foam solution is open by No. two
25 and connecting cylinder 24 flows to foamed pot 1, while the raw material in foamed pot 1 passes through suction head 21 and conveying pipeline again
22 enter in connecting cylinder 24；Expanding foam solution after the completion of reaction pours into moulding by casting in mold by the discharge port of foamed pot 1.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (9)
1. a kind of absorption polyurethane thermal insulation board foaming method, it is characterised in that：This method uses foam device, wherein described
Foam device includes foamed pot (1), stirring module (2) and reaction module (3)；The stirring module (2) is located at foamed pot (1)
Inside, the stirring module (2) include suction head (21), conveying pipeline (22), No. two agitating units (23) and connecting cylinder (24)；Institute
The outer surface that suction head (21) is fixedly mounted on connecting cylinder (24) by conveying pipeline (22) is stated, the conveying pipeline (22) will be for that will inhale
In feedstock transportation to connecting cylinder (24) in material head (21), No. two agitating units (23) are solid by No. two connecting rods (231)
Dingan County is on the inner wall of conveying pipeline (22), and No. two agitating units (23) are for coordinating conveying pipeline (22) to be stirred raw material；
The connecting cylinder (24) includes cover board and No. two side plates；No. two side plates are fixedly mounted on the lower surface of cover board, the cover board
By hollow rotating shaft rotation on the upper plate of foamed pot (1)；No. two surface of side plate are equipped with No. two openings (25)；
The reaction module (3) is located at the inside of connecting cylinder (24), and reaction module (3) sends out raw material for the cylinder (24) that is connected
Bubble reaction；Wherein,
No. two agitating units (23) include No.1 agitating device (4) and No. two grinding devices (5), the No.1 agitating device
(4) raw material internal to conveying pipeline (22) is used to be stirred；No. two grinding devices (5) are used for in conveying pipeline (22)
Raw material is ground；The No.1 agitating device (4) includes No.1 mounting box (41), No.1 rotor plate (42), No.1 supporting rod
(43), No.1 sliding panel (45), No.1 fixed plate (46), No.1 folded tube (47) and No. two folded tubes (48), the No.1 are solid
Fixed board (46) is fixedly mounted on the lower surface of No.1 rotor plate (42) by No.1 supporting rod (43)；The No.1 sliding panel (45)
It is slidably mounted on No.1 supporting rod (43)；No.1 sliding panel (45) is connect by spring with No.1 fixed plate (46)；It is described
No.1 folded tube (47) is for closing spring；The No.1 that is mounted on of the rotation of No.1 rotor plate (42) rotation is installed
In box (41), No. two folded tubes (48) are installed between No.1 rotor plate (42) and the inner wall of No.1 mounting box (41)；
No. two grinding devices (5) include No. two mounting boxs (51), No. two rotor plates (52), No. two supporting racks (53) and No. two
Ball camber grinding cover (54)；No. two mounting boxs (51) are same component with No.1 mounting box (41)；No. two rotor plates
(52) and No.1 rotor plate (42) is same component；No. two ball cambers grinding cover (54) passes through No. two supporting racks (53) and two
Number rotor plate (52) is fixedly connected；It is uniformly provided with multiple filter hole (541) in No. two ball cambers grinding cover (54)；
This method comprises the following steps：
Step 1：By in advance through dehydration polyurethane polyol and ammonia catalyst be added in foamed pot (1), start stirring
Module (2), foamed pot (1) are warming up to 80 degree, keep the temperature one hour；
Step 2：Isocyanates and foam stabiliser are added in the mixture of step 1, foamed pot (1) is warming up to 100
It 30 degree, persistently stirs five minutes；
Step 3：Distilled water is added in the mixture in step 2；Persistently stir 30 minutes；
Step 4：Reactant in step 3 is subjected to moulding by casting.
2. a kind of absorption polyurethane thermal insulation board foaming method according to claim 1, it is characterised in that：The No.1 is slided
The upper surface of movable plate (45) is uniformly provided with multiple impact blocks (452), and the impact block (452) is dome-type, the impact block
(452) No. two knocking gears (6) are equipped between；No. two knocking gears (6) are for being homogenized the raw material in conveying pipeline (22).
3. a kind of absorption polyurethane thermal insulation board foaming method according to claim 2, it is characterised in that：Described No. two are hit
It includes No. two crash panels (61), No. two limiting plates (62) and No. two connecting rods (63) to hit mechanism (6)；No. two crash panels (61)
With the upper end ball-joint of No. two connecting rods (63)；No. two limiting plates (62) are for limiting No. two crash panels (61)；
The upper surface of No. two crash panels (61) is corrugated.
4. a kind of absorption polyurethane thermal insulation board foaming method according to claim 1, it is characterised in that：The suction head
(21) it is cylinder type, the outer end of suction head (21) is installed with drainage hood (211), and the drainage hood (211) is circular platform type.
5. a kind of absorption polyurethane thermal insulation board foaming method according to claim 1, it is characterised in that：The filter hole
(541) bidirectional screw silk (543) is installed in.
6. a kind of absorption polyurethane thermal insulation board foaming method according to claim 1, it is characterised in that：The reaction mould
Block (3) includes feed pipe (31), swivel plate (32) and hinge bar (33), and the upper end rotation of the feed pipe (31) is mounted on lid
The lower surface of plate；The outer wall of the feed pipe (31) is hinged on by hinge bar (33) on the inner wall of No. two side plates；The hinge
Extension bar (33) is sliding extension bar；The side wall of the feed pipe (31) is equipped with No. three water outlets (311)；The swivel plate (32)
By being evenly arranged in from top to bottom on the outer wall of feed pipe (31).
7. a kind of absorption polyurethane thermal insulation board foaming method according to claim 6, it is characterised in that：The swivel plate
(32) left and right ends are vertically equipped with multiple No. four openings (321), and No. four openings (321) are rectangle, the rotation
The upper surface of flap (32) is equipped with the round platform mouth (322) through swivel plate (32), and stirring blade is fixed by the bracket mounted on circle
In entablature (322)；No. four openings (321) are for coordinating swivel plate (32) to be stirred the raw material inside No. two side plates.
8. a kind of absorption polyurethane thermal insulation board foaming method according to claim 7, it is characterised in that：Described No. four are opened
The cross sectional shape of mouth (321) is Λ fonts, and the bore at No. four opening (321) both ends is more than No. four opening (321) centre bits
The bore set.
9. a kind of absorption polyurethane thermal insulation board foaming method according to claim 8, it is characterised in that：Described No. four are opened
The center of mouth (321) lower end inner wall is equipped with No. five rectangular channels (323)；No. five shakes are equipped in No. five rectangular channels (323)
Motion block (324)；No. five seismic mass (324) are fixedly mounted on by spring in No. five rectangular channels (323)；No. five vibrations
Block (324) is pentagonal prism type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283193.4A CN108466399A (en) | 2018-04-02 | 2018-04-02 | A kind of absorption polyurethane thermal insulation board foaming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810283193.4A CN108466399A (en) | 2018-04-02 | 2018-04-02 | A kind of absorption polyurethane thermal insulation board foaming method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1068943A2 (en) * | 1999-07-13 | 2001-01-17 | Hirsch Maschinenbau GmbH & Co.KG. | Method and apparatus for multiple foaming of expandable plastics |
| CN103101144A (en) * | 2012-12-21 | 2013-05-15 | 杭州富阳东山塑料机械有限公司 | High-precision intermittent material sending machine |
| CN204095041U (en) * | 2014-10-09 | 2015-01-14 | 孙吉 | Foaming or prefoam staving assembly |
-
2018
- 2018-04-02 CN CN201810283193.4A patent/CN108466399A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1068943A2 (en) * | 1999-07-13 | 2001-01-17 | Hirsch Maschinenbau GmbH & Co.KG. | Method and apparatus for multiple foaming of expandable plastics |
| CN103101144A (en) * | 2012-12-21 | 2013-05-15 | 杭州富阳东山塑料机械有限公司 | High-precision intermittent material sending machine |
| CN204095041U (en) * | 2014-10-09 | 2015-01-14 | 孙吉 | Foaming or prefoam staving assembly |
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Application publication date: 20180831 |