CN202490932U - A novel hydraulic system of a magnetic material wet-type molding hydraulic press - Google Patents
A novel hydraulic system of a magnetic material wet-type molding hydraulic press Download PDFInfo
- Publication number
- CN202490932U CN202490932U CN201120445680XU CN201120445680U CN202490932U CN 202490932 U CN202490932 U CN 202490932U CN 201120445680X U CN201120445680X U CN 201120445680XU CN 201120445680 U CN201120445680 U CN 201120445680U CN 202490932 U CN202490932 U CN 202490932U
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- upper cylinder
- oil way
- control oil
- cylinder pressing
- hydraulic system
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Abstract
The utility model discloses a novel hydraulic system of a magnetic material wet-type molding hydraulic press. The hydraulic system comprises a basic motion control oil way and an upper cylinder pressing control oil way. The basic motion control oil way and the upper cylinder pressing control oil way are controlled by two plunger pumps respectively, and the upper cylinder pressing control oil way is characterized in that the plunger pump is connected with an upper cavity of a main cylinder through a high-pressure filter, a first check valve and a second check valve. The oil way for an upper cylinder pressing motion is separately controlled and thus is related to fewer valves, therefore, when the upper cylinder pressing is out of order, fault points can be found out quickly and accordingly maintenance time is shortened and working efficiency is improved. Since the oil way for the upper cylinder pressing is separated from the oil way for basic motions, valves related to the basic motions have no influence on the upper cylinder pressing, so the running of the upper cylinder pressing is more stable and acute.
Description
Technical field
The utility model relates to the hydraulic system improvement project of magnetic material wet type forming hydraulic press.
Background technology
The steps in sequence in magnetic material wet type forming hydraulic press when work is: lower piston ejects, slide block down, upper cylinder half compacting, slide block backhaul, lower piston are return, and wherein lower piston ejects, slide block down, slide block backhaul and sliding block return and be elemental motion.The elemental motion of existing press and upper cylinder half compacting are worked by two plunger displacement pumps simultaneously, and hydraulic system is comparatively loaded down with trivial details, and valve member is more.Because the upper cylinder half compacting is all very high to the requirement of pressure, speed, and the valve member of hydraulic system is more,, arbitrary valve member all can pressure, the speed of compacting be exerted an influence when taking place to reveal.Simultaneously, when the upper cylinder half compacting goes wrong, because valve member is more, be not easy to find the trouble point during maintenance, press is long downtime, has had a strong impact on production efficiency.
Summary of the invention
The utility model problem to be solved provides the hydraulic system of magnetic material wet type forming hydraulic press, and its upper cylinder half is compressed to independent oil circuit, and the valve member of use is less, is convenient to keep in repair and search problem, thereby has shortened maintenance time, has improved production efficiency.Simultaneously, the operation of upper cylinder half compacting is stable more sharp.
The hydraulic system of the utility model magnetic material wet type forming hydraulic press, it comprises elemental motion control oil circuit and upper cylinder half compacting control oil circuit, it is characterized in that: elemental motion control oil circuit and upper cylinder half compacting control oil circuit are respectively by two plunger displacement pump controls; Wherein upper cylinder half compacting control oil circuit is: linked to each other with the master cylinder epicoele through high-pressure filter, first check valve, second check valve successively by plunger displacement pump.
This hydraulic system is controlled separately through the oil circuit that the upper cylinder half compacting is moved, and the valve member that this oil circuit relates to is less, when the upper cylinder half compacting goes wrong, can find out the trouble point soon, thereby shorten maintenance time like this, has improved operating efficiency.Simultaneously, because the oil circuit of upper cylinder half compacting and elemental motion separately, the valve member that relates to of elemental motion can not exert an influence to the upper cylinder half compacting, makes the operation of upper cylinder half compacting stable more sharp.
Description of drawings
Fig. 1 is the control principle figure of this novel hydraulic system;
Fig. 2 is the control principle figure of existing hydraulic system.
The specific embodiment
The utility model is that the hydraulic system of being worked simultaneously by two plunger displacement pumps during to the compacting of existing elemental motion and upper cylinder half is improved, and making elemental motion control oil circuit and upper cylinder half compacting control oil circuit is two oil circuits that separate, and is controlled by two plunger displacement pumps respectively; Wherein upper cylinder half compacting control oil circuit is: linked to each other with master cylinder 1 epicoele through high-pressure filter 5, the first check valve 12b, the second check valve 12c successively by plunger displacement pump 2.
Elemental motion during the work of the utility model press is:
1, lower piston ejects: YA5, YA14 energising.Plunger displacement pump 3 is given system's fuel feeding, and fluid flows to A mouth, stacked unidirectional throttle valve 8, stacking type hydraulic control check valve 13 inflows cylinder 4 cavity of resorptions down through the P mouth of electromagnetic relief valve 7, solenoid directional control valve 9, and this moment, lower piston ejected;
2, slide block down: YA2, YA14, YA15 energising.Plunger displacement pump 3 is given system's fuel feeding, and fluid flows to A mouth, solenoid directional control valve 17 through the P mouth of electromagnetic relief valve 7, solenoid directional control valve 16 and flows to choke valve 15, check valve 12a, the second check valve 12c and flow into master cylinder 1 epicoele, this moment slide block down;
3, slide block backhaul: YA3, YA11, YA14 energising.Plunger displacement pump 3 is given system's fuel feeding, and fluid flows to B mouth, hydraulic control one-way valve 10 inflow master cylinders 1 cavity of resorption through the P mouth of electromagnetic relief valve 7, solenoid directional control valve 16, and a road binders is opened prefill valve 11 through YA11 simultaneously, master cylinder slide block backhaul this moment;
4, lower piston is return: YA4, YA14 energising.Plunger displacement pump 3 is given system's fuel feeding, and fluid flows to B mouth, stacked unidirectional throttle valve 8, stacking type hydraulic control check valve 13 inflows cylinder 4 epicoeles down through the P mouth of electromagnetic relief valve 7, solenoid directional control valve 9, and this moment, lower piston was return.
Upper cylinder half compacting action during the work of the utility model press is: the YA1 energising.Plunger displacement pump 2 is given system's fuel feeding, and through electromagnetic relief valve 6, high-pressure filter 5, flow into master cylinder 1 epicoele through the first check valve 12b, the second check valve 12c again, upper cylinder half compacting action forms.
Can find out that from foregoing the utility model is after transforming, elemental motion is controlled by plunger displacement pump 3, and upper cylinder half compacting action is controlled by plunger displacement pump 2, and both are independent oil circuit separately.After elemental motion separated with upper cylinder half compacting action, the relevant valve member that the oil circuit of upper cylinder half compacting relates to was able to simplify, and the interior drop-down of valve member is low, and system's operation tends towards stability, and has prolonged the replacement cycle of valve member.If the upper cylinder half compacting goes wrong, the valve member that relates to is less, has brought convenience for the maintenance investigation, has reduced the time cost and the fund cost of maintenance of equipment.Simultaneously, because the oil circuit of upper cylinder half compacting and elemental motion separately, the valve member that elemental motion relates to can not exert an influence to the upper cylinder half compacting, makes the operation of upper cylinder half compacting stable more sharp.
Even in order further to guarantee to suppress the speed of moving, as this novel a kind of optimal way, between the high-pressure filter 5 and the first check valve 12b, micro-flow speed control valve 14 is set.
Claims (2)
1. the novel hydraulic system of magnetic material wet type forming hydraulic press, it comprises elemental motion control oil circuit and upper cylinder half compacting control oil circuit, it is characterized in that: elemental motion control oil circuit with upper cylinder half compacting control oil circuit and control by two plunger displacement pumps respectively; Wherein upper cylinder half compacting control oil circuit is: pass through high-pressure filter (5), first check valve (12b), second check valve (12c) successively by plunger displacement pump (2) and link to each other with master cylinder (1) epicoele.
2. hydraulic system according to claim 1 is characterized in that: between high-pressure filter (5) and first check valve (12b), micro-flow speed control valve (14) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120445680XU CN202490932U (en) | 2011-11-11 | 2011-11-11 | A novel hydraulic system of a magnetic material wet-type molding hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120445680XU CN202490932U (en) | 2011-11-11 | 2011-11-11 | A novel hydraulic system of a magnetic material wet-type molding hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202490932U true CN202490932U (en) | 2012-10-17 |
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ID=46997176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120445680XU Expired - Fee Related CN202490932U (en) | 2011-11-11 | 2011-11-11 | A novel hydraulic system of a magnetic material wet-type molding hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202490932U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056358A (en) * | 2012-12-17 | 2013-04-24 | 宁波百琪达自动化设备有限公司 | Die pressing system for pressing rare earth materials |
| CN104006015A (en) * | 2014-05-22 | 2014-08-27 | 南通东海机床制造有限公司 | Pressure maintaining and speed stabilizing hydraulic system of hydraulic machine |
| CN110005650A (en) * | 2019-04-30 | 2019-07-12 | 郑钧译 | A kind of floating type automatic hydraulic press of double servos |
-
2011
- 2011-11-11 CN CN201120445680XU patent/CN202490932U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056358A (en) * | 2012-12-17 | 2013-04-24 | 宁波百琪达自动化设备有限公司 | Die pressing system for pressing rare earth materials |
| CN104006015A (en) * | 2014-05-22 | 2014-08-27 | 南通东海机床制造有限公司 | Pressure maintaining and speed stabilizing hydraulic system of hydraulic machine |
| CN110005650A (en) * | 2019-04-30 | 2019-07-12 | 郑钧译 | A kind of floating type automatic hydraulic press of double servos |
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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 |
Granted publication date: 20121017 Termination date: 20151111 |
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| EXPY | Termination of patent right or utility model |