CN103568172A - Polyurethane segmentally-solidifying device taking liquid as heat source and solidifying method - Google Patents
Polyurethane segmentally-solidifying device taking liquid as heat source and solidifying method Download PDFInfo
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- CN103568172A CN103568172A CN201210279504.2A CN201210279504A CN103568172A CN 103568172 A CN103568172 A CN 103568172A CN 201210279504 A CN201210279504 A CN 201210279504A CN 103568172 A CN103568172 A CN 103568172A
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Abstract
The invention discloses a polyurethane segmentally-solidifying device taking the liquid as a heat source and a solidifying method. The polyurethane segmentally-solidifying device is characterized by consisting of a hydraulic control system, a pouring system, a pressurization system, a bearing container and a mould. The hydraulic control system comprises an inlet and outlet temperature sensing device, a temperature control device and a liquid inlet and outlet valve; the pouring system comprises a son material-filling hole and a main material-filling hole; the pressurization system comprises a baffle plate, a pressure sensing probe and a pressurization device. The polyurethane segmentally-solidifying device has the advantages that the segmental solidification of polyurethane is ensured by uniform and continuous heat water flows, the compactness of a product is ensured; the air entrainment and bubbles are effectively reduced or avoided by the pressurization system, therefore, the surface of the product is smooth and clean; the mould can be flexibly disassembled, the polyurethane among a plurality of sandwich plates can be solidified at the same time, the production efficiency is greatly increased; furthermore, the automation degree is high, the manpower resource is saved and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of polyurethane segmentation solidification equipment and method, particularly relate to a kind of polyurethane segmentation solidification equipment and curing that liquid is thermal source of take.
Background technology
Develop rapidly along with heat preservation and insulation field, the vacuum insulation sandwich plate of the various shapes such as plate shaped, circular arc will substitute traditional insulation material as new high-tech product, be widely used in each field of thermal insulation such as naval vessel refrigeration, pipe insulation, building heat preservation, house insulation, household electrical appliances insulation with its excellent heat-insulating property.At present, insulating foam battenboard is full-fledged and be most widely used, and mostly uses organic plastics reaction injection, foaming, but has no research and report for the moulding process of vacuum insulation sandwich plate.
A kind of technique for the production of polyurethane-moulded articles and device are disclosed on the Chinese invention patent that Hengneike Co., Ltd is CN1651210A at publication number.At least one isocyanate component and at least one polyol component are sent in hybrid chamber and form polyurethane reactive mixture in the mode of measuring, by runner, be discharged in die cavity.In polyurethane reactive mixture by pressure medium in die cavity, exert pressure, this pressure is high is enough to seal by reacting or thermal contraction or be mingled with the caused defect of air pocket.
A kind of production equipment of foam thermal insulation composite board and particular manufacturing craft are disclosed on the Chinese invention patent that Qingdao Raetoon Construction Engineering Co., Ltd. is 101214717 at publication number.This mould consists of base and main body frame, and main body frame inside is provided with the gripper shoe of stacked arrangement, and below is provided with the hydraulic cylinder being connected with gripper shoe, and a side bottom and base are rotationally connected, and is provided with the jacking system being connected with main body frame on base; Particular manufacturing craft comprises die main body framework, is provided with major ingredient mouth on its frame, and inner side is provided with back-up block.Production equipment and particular manufacturing craft be used in conjunction with there is uniform in foaming, production efficiency is high.
By reacting resin being expelled to the RIM(reaction injection molding(RIM) in close die) in technique, must avoid or compensating defective (or " indenture ") by exerting pressure, this defect is caused by reaction contraction and thermal contraction and the gas enclosure or the bubble that produce when resin flow in die cavity.
Proposed in the past several different methods and solved this problem, wherein some are applied in practice.
The most frequently used method is in one or more basic components of reaction system, to add air or another kind of gas, is called gas-loaded.Once these components are mixed and reactant mixture is expelled in close die, dissolved or micro-scattered gas is just attempted to expand, so just produced cavity pressure, this pressure can be resisted contraction, limits or reduce the generation of scope or the larger bubble of gas enclosure.This pressure declined along with the time.The shortcoming of this method is: (1) is merely able to produce limited pressure; (2) once inject reactant mixture, just can not change dwell pressure intentionally; (3) for transparent reacting resin, cannot use gas-loaded, this is because the minute bubbles that gas-loaded produces can cause moulding article unintelligible.
Therefore, invent a kind of urethane cures device and method that can avoid gas enclosure and bubble, make it be coated vacuum heat-insulating plate equably and obtain bright and clean smooth vacuum insulation sandwich plate surface, will provide technology and technique support for exploitation vacuum insulation sandwich plate market.
Summary of the invention
The present invention is intended to make up the defect of existing insulation process technology, and a kind of polyurethane segmentation solidification equipment and curing that liquid is thermal source of take is provided.This solidification equipment and method are applicable to prepare vacuum insulation sandwich plate.
For addressing the above problem, the invention provides a kind of polyurethane segmentation solidification equipment that liquid is thermal source of take, it is characterized in that comprising hydraulic control system, pouring system, compression system, carrying container and mould.
Hydraulic control system of the present invention comprises turnover temperature sensing device, temperature control equipment and liquid turnover valve.Be placed in the temperature sensing device of container bottom for the real time temperature of detecting liquid, by regulating and controlling temperature control device, control the temperature of liquid, the temperature in container is remained between 65 ℃-85 ℃; The valve of turnover liquid becomes body diagonal to distribute on carrying container, liquid flowing valve is in lower end, fluid valve is in upper end, specification according to carrying container is set initial flow rate, first open liquid flowing valve, make it slowly to flow out until the liquid in container is opened fluid valve while covering whole mould, regulate two valves to obtain identical flow velocity, make liquid in the heating container state that steadily circulates in integral body.
Pouring system of the present invention comprises sub-sprue and female sprue.Sub-sprue, for connecting mold and female sprue, is characterized in that sub-sprue is connected with female sprue with baffle plate by two way valve threaded sleeve, and the upper end of female sprue is connected to compression system.
Compression system of the present invention comprises baffle plate, pressure sensing probe and pressue device.Baffle plate, for sealed mold, has avoided polyurethane to overflow from mould upper end, it is characterized in that being uniformly distributed on baffle plate the venthole of some, and the connecting thread of its middle matches with the lower screw thread of sub-sprue; Pressure sensing probe is placed in mold bottom, can survey the real-time pressure in mould and be fed back; Pressue device is placed in the upper end of pouring system, pressure detecting instrument regulates the pressue device institute should applied pressure by analyzing the dynamic pressure value of pressure sensing probe feedback, makes the polyurethane in mould in the venthole from baffle plate, not overflow and can be full of densely die cavity.
Carrying container of the present invention is three-dimensional uncovered water tank.Its specification customizes according to actual requirement, it is characterized in that being made by the high-strength high temperature resistant and material such as fiberglass that thermal conductivity factor is low or cement.
Mould of the present invention is made according to customer requirement, it is characterized in that its strict sealing in position of immersing in liquid is non-leakage, and does not deform in the liquid temperature of 65 ℃-85 ℃.
In order to address the above problem, the present invention also provides a kind of polyurethane segmentation curing that liquid is thermal source of take, and it is characterized in that comprising the step of following order:
(1) mould of some is put into heating container;
(2) temperature sensing device is placed in to the bottom of container;
(3) at mould bottom Bonding pressure pickup probe;
(4) side joint at container enters temperature control equipment;
(5) with spray gun, at mould inner surface, evenly spray layer 2-3 releasing agent;
(6) in mould, put into sandwich plate;
(7) use two way valve threaded sleeve connecting mold and pressue device;
(8) by glue-pouring device, inject polyurethane glue;
(9) flow velocity of regulating water inlet valve door, until liquid is opened flowing water Valve while filling whole device, regulates Inlet and outlet water speed, guarantees the water surface stable equilibrium in container;
(10) after 18-36 hour, close two way valve threaded sleeve and take off pressue device;
(11) after mold cools down, plate is got in the demoulding.
The invention has the advantages that: the detachable property of (1) mould can realize polylith sandwich plate curing urethane at one time, has greatly improved production efficiency; (2) flow of hot water evenly flowing to has continuously guaranteed that the segmentation of polyurethane solidifies, and has realized between sandwich plate and polyurethane glue finer and close bondingly, has avoided the formation of the defects such as shrinkage cavity and porosity; (3) on mould with compression system effectively reduce or avoided gas enclosure and bubble, make product surface bright and clean smooth; (4) this solidification equipment automaticity is high, has saved human resources, has improved efficiency.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
Fig. 1 is a whole set of solidification equipment schematic diagram, and wherein 10 is pressue device, and 11 is pressure detecting instrument, and 12 is carrying container, 13 is liquid flowing valve, and 14 is pressure sensing probe, and 15 is mould, and 16 is temperature sensor, 17 is fluid valve, and 18 is sub-sprue, and 19 is temperature controller, and 20 is female sprue.
Fig. 2 is mould detailed schematic, and wherein 21 is mould, and 22 is venthole, and 23 is connecting thread, and 24 is two way valve threaded sleeve, and 25 is baffle plate.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims to the modification of the various equivalent form of values of the present invention and limit.
Embodiment
embodiment 1
One secondary mould is put into heating container; temperature sensing device is placed in to the bottom of container; a side joint at container enters temperature control equipment; at mould bottom Bonding pressure pickup probe, with spray gun, at mould inner surface, evenly spray layer 2-3 releasing agent simultaneously, take water as the whole heating container of Filled Dielectrics; regulate water temperature at 70 degrees Celsius; by pouring device, inject polyurethane glue, solidify the demoulding after 24 hours and get plate, can obtain one and using the vacuum insulation sandwich plate of polyurethane glue as outer layer protection.
embodiment 2
Six secondary moulds are put into heating container; temperature sensing device is placed in to the bottom of container; a side joint at container enters temperature control equipment; simultaneously at mould bottom Bonding pressure pickup probe; with spray gun, at mould inner surface, evenly spray layer 2-3 releasing agent; take oil as the whole heating container of Filled Dielectrics and slow down the flow velocity that passes in and out fuel tap door; regulate water temperature at 65 degrees Celsius; by glue-pouring device, inject polyurethane glue; solidify the demoulding after 28 hours and get plate, can obtain one and using the vacuum insulation sandwich plate of polyurethane glue as outer layer protection.
Above are only two specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not depart from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (10)
1. the polyurethane segmentation solidification equipment that the liquid of take is thermal source, is characterized in that comprising by carrying container, mould, hydraulic control system, pouring system and compression system five parts forming.
2. according to the solidification equipment described in claims 1, it is characterized in that described carrying container made by materials such as high-strength high temperature resistant and fiberglass that thermal conductivity factor is low or cement.
3. according to the solidification equipment described in claims 1, it is characterized in that the strict sealing in position in described mould immersion liquid is non-leakage, and do not deform in the liquid temperature of 65 ℃-85 ℃.
4. according to the solidification equipment described in claims 1, it is characterized in that described hydraulic control system comprises the turnover of turnover liquid valve, temperature sensing device and temperature control equipment.
5. according to the hydraulic control system described in claims 4, it is characterized in that the valve of described turnover liquid becomes body diagonal to distribute on carrying container, liquid flowing valve is in lower end, and fluid valve, in upper end, is set initial flow rate according to the specification of carrying container; And the temperature of liquid is 65 ℃-85 ℃.
6. according to the solidification equipment described in claims 1, it is characterized in that described pouring system comprises sub-sprue and female sprue.
7. according to the pouring system described in claims 6, it is characterized in that sub-sprue is connected with female sprue with baffle plate by two way valve threaded sleeve, the upper end of female sprue is connected to compression system; On baffle plate, be uniformly distributed the venthole of some, baffle plate central authorities have connecting thread to match with sub-sprue.
8. according to the solidification equipment described in claims 1, it is characterized in that described compression system comprises baffle plate, pressure sensing probe and pressue device.
9. according to the compression system described in claims 8, it is characterized in that pressure sensing probe is placed in mold bottom, can survey the real-time pressure in mould and be fed back; Pressure detecting instrument regulates the pressue device institute should applied pressure by analyzing the dynamic pressure value of pressure sensing probe feedback.
10. the polyurethane segmentation curing that the liquid of take is thermal source, is characterized in that comprising following sequential steps:
(1) mould of some is put into heating container;
(2) temperature sensing device is placed in to the bottom of container;
(3) at mould bottom Bonding pressure pickup probe;
(4) side joint at container enters temperature control equipment;
(5) with spray gun, at mould inner surface, evenly spray layer 2-3 releasing agent;
(6) in mould, put into sandwich plate;
(7) use two way valve threaded sleeve connecting mold and pressue device;
(8) by glue-pouring device, inject polyurethane glue;
(9) flow velocity of regulating water inlet valve door, until liquid is opened flowing water Valve while filling whole device, regulates Inlet and outlet water speed, guarantees the water surface stable equilibrium in container;
(10) after 18-36 hour, close two way valve threaded sleeve and take off pressue device;
(11) after mold cools down, plate is got in the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279504.2A CN103568172B (en) | 2012-08-08 | 2012-08-08 | A kind of stage curing device of the polyurethane with liquid as thermal source and curing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279504.2A CN103568172B (en) | 2012-08-08 | 2012-08-08 | A kind of stage curing device of the polyurethane with liquid as thermal source and curing |
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| Publication Number | Publication Date |
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| CN103568172A true CN103568172A (en) | 2014-02-12 |
| CN103568172B CN103568172B (en) | 2016-08-03 |
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| CN201210279504.2A Active CN103568172B (en) | 2012-08-08 | 2012-08-08 | A kind of stage curing device of the polyurethane with liquid as thermal source and curing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486367A (en) * | 1981-05-30 | 1984-12-04 | Ikeda Bussan Co., Ltd. | Process for producing polyurethane-foam moldings, and apparatus for same |
| JPS6140115A (en) * | 1984-04-05 | 1986-02-26 | Inoue Mtp Co Ltd | Adjustment of mold temperature |
| CN101605645A (en) * | 2007-02-09 | 2009-12-16 | 空中客车英国有限公司 | The method and apparatus that is used for the cured thermoset material |
| CN202895546U (en) * | 2012-08-09 | 2013-04-24 | 苏州宏久航空防热材料科技有限公司 | Polyurethane segmented curing device with liquid as heat source |
-
2012
- 2012-08-08 CN CN201210279504.2A patent/CN103568172B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486367A (en) * | 1981-05-30 | 1984-12-04 | Ikeda Bussan Co., Ltd. | Process for producing polyurethane-foam moldings, and apparatus for same |
| JPS6140115A (en) * | 1984-04-05 | 1986-02-26 | Inoue Mtp Co Ltd | Adjustment of mold temperature |
| CN101605645A (en) * | 2007-02-09 | 2009-12-16 | 空中客车英国有限公司 | The method and apparatus that is used for the cured thermoset material |
| CN202895546U (en) * | 2012-08-09 | 2013-04-24 | 苏州宏久航空防热材料科技有限公司 | Polyurethane segmented curing device with liquid as heat source |
Non-Patent Citations (1)
| Title |
|---|
| 颜悦: "《航空座舱透明材料应用研究新进展》", 30 November 2011, article "固化工艺对聚氨酯弹性体固化收缩特性的影响", pages: 109-110 * |
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| CN103568172B (en) | 2016-08-03 |
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Address after: 215400 people's road, Jiangsu, Taicang Hua Xu apartment C412 Applicant after: Suzhou Hongjiu Aviation Heat Proof Materials Technology Co., Ltd. Address before: 215400 Suzhou, Jiangsu, Taicang Town, the people of the South Road, No. 162 Applicant before: Suzhou Hongjiu Aviation Heat Proof Materials Technology Co., Ltd. |
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