CN2644040Y - Combined pressure relief device of large extruder - Google Patents
Combined pressure relief device of large extruder Download PDFInfo
- Publication number
- CN2644040Y CN2644040Y CNU032188412U CN03218841U CN2644040Y CN 2644040 Y CN2644040 Y CN 2644040Y CN U032188412 U CNU032188412 U CN U032188412U CN 03218841 U CN03218841 U CN 03218841U CN 2644040 Y CN2644040 Y CN 2644040Y
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- CN
- China
- Prior art keywords
- valve
- pressure
- oil cylinder
- detecting element
- proportional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a composite pressure unloading device for extruder, which is characterized in that the device consists of an oil tank, a pressure pre-unloading valve(1), a proportional spillover valve(2), a proportional movement valve(3), an inserted exhaust valve(4) and a pressure detecting element(5). The pressure detecting element(5) is connected with an electrical appliance controlling circuit arranged outside the oil tank. The pressure pre-unloading valve(1), the proportional spillover valve(2), the proportional movement valve(3) and the inserted exhaust valve(4) are arranged on the of the pipelines of the oil tank. The large size composite pressure unloading device of extruder releases the pressure stably and quickly.
Description
Technical field: the present invention relates to the compound pressure relief device of a kind of extruder.
Background technology: the working cylinder diameter and the stroke of general large-size extruder are all bigger, and its interior liquid was accumulated very big energy because of high pressure compressed when oil cylinder was under high pressure worked.The energy that oil cylinder must adopt adequate measures to accumulate in oil cylinder when end-of-job steadily and apace discharges, and makes every effort to reduce the hydraulic shock and the equipment vibrations that cause because of the oil cylinder release, shortens the oil cylinder spent time of release.
Summary of the invention: the utility model provides a kind of large-size extruder compound pressure relief device, and its release is steadily quick.
The purpose of this utility model is to realize like this, the compound pressure relief device of large-size extruder, it is characterized in that: it is made of oil cylinder, pre-pressure-relief valve, proportional pressure control valve, the dynamic valve of ratio, plug-in tapping valve and pressure detecting element, pressure detecting element is fixed in the oil cylinder, and pressure detecting element is electrically connected with oil cylinder electrical apparatus control circuit outward; Be connected with pre-pressure-relief valve, proportional pressure control valve, the dynamic valve of ratio, plug-in tapping valve on the oil cylinder oil circuit pipeline simultaneously.
The utility model has the advantages that, when extruder oil cylinder end-of-job need be carried out the release action, detect in-oil cylinder force value by pressure detecting element, electrical apparatus control system is realized steady fast pressure relief according to manner of execution, order and the combination of resultant force value according to four valves such as the pre-pressure-relief valve of the programme-control that sets in advance, LC proportional pressure control valve, the dynamic valve of ratio, plug-in tapping valves.
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.
Description of drawings: Fig. 1 is the utility model example structure schematic diagram.
Among the figure, 1, pre-pressure-relief valve; 2, proportional pressure control valve; 3, than dynamic valve; 4, dress formula tapping valve; 5, pressure detecting element.
The specific embodiment: as shown in Figure 1, pressure detecting element 5 is arranged in oil cylinder, pressure detecting element 5 is electrically connected with oil cylinder electrical apparatus control circuit outward; Be connected with pre-pressure-relief valve 1 on the oil cylinder oil circuit pipeline, proportional pressure control valve 2, the dynamic valve 3 of ratio, plug-in tapping valve 4, when extruder oil cylinder end-of-job need be carried out the release action, detect in-oil cylinder force value by pressure detecting element 5, electrical equipment control mechanism according to resultant force value according to the pre-pressure-relief valve 1 of the programme-control that sets in advance, proportional pressure control valve 2, the dynamic valve 3 of ratio, the manner of execution of four valves such as plug-in tapping valve 4 grades, order and combination, realize steady fast pressure relief, the non-extrusion time that the shortening large-size extruder causes because of release improves the productivity ratio of equipment.
Claims (1)
1, the compound pressure relief device of large-size extruder, it is characterized in that: it is made up of oil cylinder, pre-pressure-relief valve (1), proportional pressure control valve (2), the dynamic valve of ratio (3), plug-in tapping valve (4) and pressure detecting element (5), pressure detecting element (5) is fixed in the oil cylinder, and pressure detecting element (5) is electrically connected with oil cylinder electrical apparatus control circuit outward; Be connected with pre-pressure-relief valve (1), proportional pressure control valve (2), the dynamic valve of ratio (3), plug-in tapping valve (4) on the oil cylinder oil circuit pipeline simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032188412U CN2644040Y (en) | 2003-08-28 | 2003-08-28 | Combined pressure relief device of large extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032188412U CN2644040Y (en) | 2003-08-28 | 2003-08-28 | Combined pressure relief device of large extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644040Y true CN2644040Y (en) | 2004-09-29 |
Family
ID=34290316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032188412U Expired - Fee Related CN2644040Y (en) | 2003-08-28 | 2003-08-28 | Combined pressure relief device of large extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644040Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457320C (en) * | 2007-02-13 | 2009-02-04 | 西南铝业（集团）有限责任公司 | Controlling system of moulded forging hydraulic press with proportional type oil controlling water |
| CN106640849A (en) * | 2017-01-23 | 2017-05-10 | 王安基 | Multistage logic unloading valve and hydraulic system |
-
2003
- 2003-08-28 CN CNU032188412U patent/CN2644040Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457320C (en) * | 2007-02-13 | 2009-02-04 | 西南铝业（集团）有限责任公司 | Controlling system of moulded forging hydraulic press with proportional type oil controlling water |
| CN106640849A (en) * | 2017-01-23 | 2017-05-10 | 王安基 | Multistage logic unloading valve and hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040929 Termination date: 20110828 |