CN202241764U - Hard polyurethane molding foam negative-pressure foaming production equipment - Google Patents
Hard polyurethane molding foam negative-pressure foaming production equipment Download PDFInfo
- Publication number
- CN202241764U CN202241764U CN2011203537867U CN201120353786U CN202241764U CN 202241764 U CN202241764 U CN 202241764U CN 2011203537867 U CN2011203537867 U CN 2011203537867U CN 201120353786 U CN201120353786 U CN 201120353786U CN 202241764 U CN202241764 U CN 202241764U
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- car body
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- Moulds For Moulding Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The utility model relates to hard polyurethane molding foam negative pressure foaming production equipment; a motor drives an annular conveying chain to rotate through a power gear, one end of a connecting rod is fixed on the annular conveying chain, the other end of the connecting rod is fixed on a car body, each box body foaming mold cavity is fixed on a single car body, the upper part of the annular conveying chain is provided with an annular power supply guide rail wire, a contact piece fixed on a mold temperature controller or the car body is electrically connected with the annular power supply guide rail wire, the contact piece provides the working power supply for a mold temperature controller, hot water of the mold temperature controller is communicated with a circulating hot water heating channel of each box body foaming mold cavity through a pipeline, a vacuum pump and a buffer tank are fixed on the car body, a suction pipe of the vacuum pump is communicated with the buffer tank, an air inlet of the buffer tank is communicated with the box body foaming mold cavity through a pipeline, and the pipeline is provided with a vacuum pressure control valve. Polyurethane forming is performed under the negative pressure condition by the hard polyurethane molding foam negative pressure foaming production equipment, the raw material requirement of polyurethane is reduced, the purpose of injecting the mold cavity in a short time is achieved, the produced foam is small in foam hole, is high in strength and stable in size.
Description
Technical field:
The utility model relates to hard polyurethane foams manufacturing technology field, more specifically to hard polyurethane foams negative pressure foam production method and production equipment thereof.
Background technology:
Generally; Hard polyaminoester moulding foam production all is to carry out under the normal pressure; The gas that increases gradually and discharge along with volume when foam foams in die cavity increases; Foam receives air pressure inside at die cavity mobile and increases the resistance that brings and also increase gradually, can form phenomenons such as lack of fill or Density Distribution be inhomogeneous, and the existence of pressure can produce bigger influence to the quality of the finished product of foam.Therefore the flowability to raw material of foamed product, intensity etc. have higher requirement; Particularly in recent years, the expansion of As market is had higher requirement to the production capacity of equipment and the quality of product; Raw material production person attempts to solve this problem through the prescription adjustment; But because the restriction of natural conditions and appointed condition, no matter how composition of raw materials screens, and all there is following several shortcoming in foam production:
1, because too fast polymerization rate, it is too fast to cause material viscosity to increase, and the flowability of foam reduces greatly, forms surface or interior void easily during mobile in cavity, and the heat insulating ability and the outward appearance of foam are brought influence;
2, because too fast polymerization rate causes foam under the situation that is not full of casing, to begin to solidify, some places are not filled in the casing.
Therefore, usually bring a large amount of product quality problems when adopting normal pressure type hard polyaminoester combined polyether, just explain that also there is great limitation in common foaming mode.
The utility model content:
The purpose of the utility model is exactly the deficiency to prior art; And a kind of hard polyaminoester moulded foam negative pressure foam production equipment is provided, it carries out polyurethane foam under negative pressure state, to the ingredient requirement reduction of polyurethane; Reached and filled with die cavity at short notice; It is thin to make the foam abscess, and intensity is high, and dimensionally stable is good.
The technological solution of the utility model is following:
Hard polyaminoester moulded foam negative pressure foam production equipment; Comprise the die heater of endless conveyor chain, foam box die cavity and generation circulating hot water, motor drives power gear through decelerator and rotates, and power gear drives the endless conveyor chain rotation; Connecting rod one end is fixed on the endless conveyor chain, the other end is fixed on the car body; Each foam box die cavity all is fixed on the independent car body, is provided with the annular electric supply guide rail line on the top of endless conveyor chain, and die heater is fixed on the car body; The contact that is fixed on die heater or the car body electrically contacts with the annular electric supply guide rail line, and contact provides the working power of die heater;
Be provided with the circulating hot water heat tunnel in the foam box die cavity, the hot water of die heater connects the circulating hot water heat tunnel of each foam box die cavity through pipeline.
Fixedly on the car body, the exhaust tube of vavuum pump connects surge tank for vavuum pump and surge tank, and the air inlet of surge tank connects the foam box die cavity through pipeline, and the vacuum pressure control valve is installed on pipeline.
Said arranged outside at ring-shaped guide rail has the demoulding station after foaming injection station and foaming are accomplished.
The beneficial effect of the utility model is:
1, it can to make foam be to foam under the situation of 0～0.025MPa at pressure, rise to send out and accelerate, and under the negative pressure state with speed of expansion; Ingredient requirement to polyurethane reduces; Can adopt high-functionality polyester polyol to foam as main polyalcohol preparation combined polyether, reach and filled with die cavity at short notice, it is thin to make the foam abscess; Intensity is high, and dimensionally stable is good.
When 2, under negative pressure state, foaming, because the foam stream dynamic resistance reduces, flowability is greatly improved, and can save the feed injection amount of 3-5%.
3, owing to cross filling rate and mobile raising; Can select faster that gel time satisfies the moulding foam production, enhance productivity, the utility model is fast according to the polyester polyols alcogel; And the characteristics that contain aromatic hydrocarbons; Select the high functionality Aromatic Polyester Polyols to combine and be mixed with hard polyaminoester combined polyether glycol system, make the foam abscess that makes more tiny, play the effect that reduces the foam thermal conductivity factor with PPG.
Description of drawings:
Fig. 1 is the structural representation of the utility model
Structural representation when Fig. 2 is fixed together for electric motor car car body and foam box die cavity
Among the figure: 1, ring-shaped guide rail; 2, annular electric supply guide rail line; 3, foam box die cavity; 4, die heater; 5, foaming injection station; 6, demoulding station; 7, contact; 8, flexible pipe; 9, electric motor car car body; 10, circulating hot water heat tunnel; 11, vavuum pump; 12, surge tank; 13, pipeline; 14, vacuum pressure control valve; 15, vavuum pump; 16, surge tank; 17, pipeline; 18, vacuum pressure control valve.
The specific embodiment:
Embodiment: see Fig. 1, shown in 2; Hard polyaminoester moulded foam negative pressure foam production equipment; The die heater 4 that comprises endless conveyor chain 1, foam box die cavity 3 and generation circulating hot water, motor 11 drives power gear 13 through decelerator 12 and rotates, and power gear 13 drives endless conveyor chain 1 rotation; Connecting rod 14 1 ends are fixed on the endless conveyor chain 1, the other end is fixed on the car body 9; Each foam box die cavity 3 all is fixed on the independent car body 9, is provided with annular electric supply guide rail line 2 on the top of endless conveyor chain 1, and die heater 4 is fixed on the car body 9; The contact 7 that is fixed on die heater 4 or the car body 9 electrically contacts with annular electric supply guide rail line 2, and contact 7 provides the working power of die heater 4;
Be provided with circulating hot water heat tunnel 10 in the foam box die cavity 3, the hot water of die heater 4 connects the circulating hot water heat tunnel 10 of each foam box die cavity 3 through pipeline 8.
Fixedly on the car body 9, the exhaust tube of vavuum pump 15 connects surge tank 16 for vavuum pump 15 and surge tank 16, and the air inlet of surge tank 16 connects foam box die cavity 3 through pipeline 17, and vacuum pressure control valve 18 is installed on pipeline 17.
Said arranged outside at ring-shaped guide rail 1 has the demoulding station 6 after foaming injection station 5 and foaming are accomplished.
Claims (2)
1. hard polyaminoester moulded foam negative pressure foam production equipment; The die heater (4) that comprises endless conveyor chain (1), foam box die cavity (3) and generation circulating hot water; Motor (11) drives power gear (13) through decelerator (12) and rotates, and power gear (13) drives endless conveyor chain (1) and rotates, and connecting rod (14) one ends are fixed on that endless conveyor chain (1) goes up, the other end is fixed on the car body (9); Each foam box die cavity (3) all is fixed on the independent car body (9), it is characterized in that:
Be provided with annular electric supply guide rail line (2) on the top of endless conveyor chain (1); Die heater (4) is fixed on the car body (9); The contact (7) that is fixed on die heater (4) or the car body (9) electrically contacts with annular electric supply guide rail line (2), and contact (7) provides the working power of die heater (4);
Be provided with circulating hot water heat tunnel (10) in the foam box die cavity (3), the hot water of die heater (4) connects the circulating hot water heat tunnel (10) of each foam box die cavity (3) through pipeline (8);
Fixedly on the car body (9), the exhaust tube of vavuum pump (15) connects surge tank (16) for vavuum pump (15) and surge tank (16), and the air inlet of surge tank (16) connects foam box die cavity (3) through pipeline (17), and vacuum pressure control valve (18) is installed on pipeline (17).
2. hard polyaminoester moulded foam negative pressure foam production equipment according to claim 1 is characterized in that: the arranged outside at ring-shaped guide rail (1) has the demoulding station (6) after foaming injection station (5) and foaming are accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203537867U CN202241764U (en) | 2011-09-21 | 2011-09-21 | Hard polyurethane molding foam negative-pressure foaming production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203537867U CN202241764U (en) | 2011-09-21 | 2011-09-21 | Hard polyurethane molding foam negative-pressure foaming production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202241764U true CN202241764U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203537867U Expired - Fee Related CN202241764U (en) | 2011-09-21 | 2011-09-21 | Hard polyurethane molding foam negative-pressure foaming production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202241764U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962060A (en) * | 2013-01-25 | 2014-08-06 | 巴斯夫聚氨酯特种产品（中国）有限公司 | Heating apparatus for heating polyurethane composition material or polyurethane raw material |
| CN104943050A (en) * | 2015-05-01 | 2015-09-30 | 长春富维—江森自控汽车饰件系统有限公司 | High-resilience polyurethane foam vacuum foaming method |
| CN109049476A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | Car carpeting polyurethane foam line |
| CN109049477A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | A kind of polyurethane foam line |
-
2011
- 2011-09-21 CN CN2011203537867U patent/CN202241764U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962060A (en) * | 2013-01-25 | 2014-08-06 | 巴斯夫聚氨酯特种产品（中国）有限公司 | Heating apparatus for heating polyurethane composition material or polyurethane raw material |
| CN103962060B (en) * | 2013-01-25 | 2016-05-04 | 巴斯夫聚氨酯特种产品（中国）有限公司 | For heating the heater of polyurethane combined material or urethane raw |
| CN104943050A (en) * | 2015-05-01 | 2015-09-30 | 长春富维—江森自控汽车饰件系统有限公司 | High-resilience polyurethane foam vacuum foaming method |
| CN109049476A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | Car carpeting polyurethane foam line |
| CN109049477A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | A kind of polyurethane foam line |
| CN109049476B (en) * | 2018-09-17 | 2024-03-15 | 张家港力勤机械有限公司 | Polyurethane foaming line for automobile carpet |
| CN109049477B (en) * | 2018-09-17 | 2024-03-19 | 张家港力勤机械有限公司 | Polyurethane foaming line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170921 |