CN2345799Y - Liquid material high-low-pressure cross valve of polyurethane high-pressure foaming machine - Google Patents
Liquid material high-low-pressure cross valve of polyurethane high-pressure foaming machine Download PDFInfo
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- CN2345799Y CN2345799Y CN 98221923 CN98221923U CN2345799Y CN 2345799 Y CN2345799 Y CN 2345799Y CN 98221923 CN98221923 CN 98221923 CN 98221923 U CN98221923 U CN 98221923U CN 2345799 Y CN2345799 Y CN 2345799Y
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- pressure
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- liquid material
- pressure channel
- low pressure
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Abstract
The utility model provides a liquid material high and low pressure cross valve of polyurethane high pressure foaming machines, which comprises a valve body 1, wherein the valve body 1 is provided with a high pressure passage 2 and a low pressure passage 3. The utility model has the improvement that a sliding post type valve core 4 is arranged between the high pressure passage 2 and the low pressure passage 3; the sliding post type valve core 4 can do straight reciprocating motion. When the post type valve core 4 makes the high pressure passage 2 and the low pressure passage 3 lie in the low pressure state, a liquid material system lies in the high pressure state. The utility model has the advantages of good sealing performance, no material leakage, simple structure and difficult component abrasion.
Description
The utility model relates to the liquid material high and low pressure changing valve of a kind of equipment that is used to make polyurethane high-pressure foam goods, particularly polyurethane high pressure foaming machine.
The liquid material system of polyurethane high pressure foaming machine is in working order the time, the high pressure conditions of raw material system and the conversion of low-pressure state realize by changing valve, the raw material height of the polyurethane high pressure foaming machine that present Italian Kang Long company produces, the low pressure changing valve is comparatively advanced, it comprises valve body, have high-pressure channel and low-pressure channel on the valve body, have one between high-pressure channel and the low-pressure channel and rotate the pillar spool, when rotating the pillar spool high, when low-pressure channel is connected, the liquid material system is in low-pressure state, when spool high, when low-pressure channel ended, the liquid material system was in high pressure conditions.The changing valve of this structure, spool leak raw material easily, and spool is rotated by a rack drives of doing straight reciprocating motion, its complex structure, and parts wear and tear easily.
The purpose of this utility model is to provide a kind of liquid material high and low pressure changing valve of polyurethane high pressure foaming machine, to overcome the deficiency of known technology.
The utility model is achieved in that a kind of liquid material high and low pressure changing valve of polyurethane high pressure foaming machine, it comprises valve body 1, have high-pressure channel 2 and low-pressure channel 3 on the valve body 1, its improvements are to have the slip pillar spool 4 that can do straight reciprocating motion between high-pressure channel 2 and low-pressure channel 3, when pillar spool 4 is connected high-pressure channel 2 and low-pressure channel 3, the liquid material system is in low-pressure state, when pillar spool 4 high-pressure channel 2 and low-pressure channel 3 by the time, the liquid material system is in high pressure conditions.
The liquid material high and low pressure changing valve of polyurethane high pressure foaming machine of the present utility model can be that contact the sealing surface that forms with high-pressure channel 2 be the conical surface to pillar spool 4.
The liquid material high and low pressure changing valve of polyurethane high pressure foaming machine of the present utility model, the sliding stroke that can be pillar spool 4 is 1.0mm-100.0mm.
The liquid material high and low pressure changing valve of polyurethane high pressure foaming machine of the present utility model can be that pillar spool 4 is connected with hydraulic driving element.
The liquid material high and low pressure changing valve of the polyurethane high pressure foaming machine that the utility model provides, pillar spool 4 is sealed in the valve body 1 and can leak, and it is simple in structure, and parts are not easy to wear.
Fig. 1, the structure sectional view of the liquid material high and low pressure changing valve of the utility model polyurethane high pressure foaming machine.
The utility model is described in further detail in conjunction with the embodiments with reference to accompanying drawing.
Embodiment 1, Fig. 1 has provided the concrete structure of the liquid material high and low pressure changing valve of the utility model polyurethane high pressure foaming machine, as shown in the figure, it comprises valve body 1, have high-pressure channel 2 and low-pressure channel 3 on the valve body 1, between high-pressure channel 2 and low-pressure channel 3, has the slip pillar spool 4 that to do straight reciprocating motion, when pillar spool 4 is connected high-pressure channel 2 and low-pressure channel 3, the liquid material system is in low-pressure state, when pillar spool 4 high-pressure channel 2 and low-pressure channel 3 by the time, the liquid material system is in high pressure conditions.Pillar spool 4 contacts the sealing surface that forms with high-pressure channel 2 be the conical surface.The sliding stroke of pillar spool 4 is 1.0mm-100.0mm, and the concrete numerical value of its stroke is determined according to the specific requirement of raw material system.Pillar spool 4 is connected with hydraulic driving element, can be the pillar spool that a hydraulic driving part drives a high and low pressure changing valve, also can be the pillar spool that a hydraulic driving element drives two high and low pressure changing valves.When pillar spool 4 was positioned at left stop, spool 4 stopped up high-pressure channel 4, and the high and low pressure passage ends, and the liquid material system is in high pressure conditions, and when pillar spool 4 was positioned at right stop, the high and low pressure passage was connected, and the liquid material system is in low-pressure state.
Claims (4)
1, a kind of liquid material high and low pressure changing valve of polyurethane high pressure foaming machine, it comprises valve body (1), have high-pressure channel (2) and low-pressure channel (3) on the valve body (1), it is characterized in that between high-pressure channel (2) and low-pressure channel (3), having the slip pillar spool (4) that to do straight reciprocating motion, when pillar door core (4) is connected high-pressure channel (2) and low passage (3), the liquid material system is in low-pressure state, when pillar spool (4) high-pressure channel (2) and low-pressure channel (3) by the time, the liquid material system is in high pressure conditions.
2, high and low pressure changing valve according to claim 1 is characterized in that pillar spool (4) contacts the sealing surface that forms with high-pressure channel (2) be the conical surface.
3, high and low pressure changing valve according to claim 2, the sliding stroke that it is characterized in that pillar spool (4) is 1.0mm-100.0mm.
4, high and low pressure changing valve according to claim 3 is characterized in that pillar spool (4) is connected with hydraulic driving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221923 CN2345799Y (en) | 1998-07-23 | 1998-07-23 | Liquid material high-low-pressure cross valve of polyurethane high-pressure foaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98221923 CN2345799Y (en) | 1998-07-23 | 1998-07-23 | Liquid material high-low-pressure cross valve of polyurethane high-pressure foaming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2345799Y true CN2345799Y (en) | 1999-10-27 |
Family
ID=33973376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98221923 Expired - Fee Related CN2345799Y (en) | 1998-07-23 | 1998-07-23 | Liquid material high-low-pressure cross valve of polyurethane high-pressure foaming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2345799Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242821A (en) * | 2011-04-14 | 2011-11-16 | 东莞市骏颖机械制造有限公司 | High and low pressure switching valve for polyurethane high pressure foaming machine |
| CN103964358A (en) * | 2013-01-25 | 2014-08-06 | 巴斯夫聚氨酯特种产品（中国）有限公司 | Material unloading valve for high viscosity polyurethane combination material, and material unloading method |
| CN118452040A (en) * | 2024-07-12 | 2024-08-09 | 山东绿美生态环境工程集团有限公司 | Automatic change irrigation equipment |
-
1998
- 1998-07-23 CN CN 98221923 patent/CN2345799Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242821A (en) * | 2011-04-14 | 2011-11-16 | 东莞市骏颖机械制造有限公司 | High and low pressure switching valve for polyurethane high pressure foaming machine |
| CN103964358A (en) * | 2013-01-25 | 2014-08-06 | 巴斯夫聚氨酯特种产品（中国）有限公司 | Material unloading valve for high viscosity polyurethane combination material, and material unloading method |
| CN118452040A (en) * | 2024-07-12 | 2024-08-09 | 山东绿美生态环境工程集团有限公司 | Automatic change irrigation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |