CN102229252A - Control device and method of isostatic pressing machine - Google Patents
Control device and method of isostatic pressing machine Download PDFInfo
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- CN102229252A CN102229252A CN2011101916257A CN201110191625A CN102229252A CN 102229252 A CN102229252 A CN 102229252A CN 2011101916257 A CN2011101916257 A CN 2011101916257A CN 201110191625 A CN201110191625 A CN 201110191625A CN 102229252 A CN102229252 A CN 102229252A
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Abstract
The invention discloses a control device of an isostatic pressing machine. The control device comprises a pressure sensor, an analog-to-digital converter, a controller, an electromagnetic valve, a driver, a hydraulic pump and an oil return electromagnetic valve; the controller is used for receiving a digital signal from the analog-to-digital converter, comparing the digital signal with a default pressure value, judging whether to continuously input pressure oil to a high-pressure oil chamber of the isostatic pressing machine or not, and controlling shutdown of the electromagnetic valve to maintain the pressure of the hydraulic oil in the high-pressure oil chamber; the electromagnetic valve is used for receiving a control signal from the controller, and starting or shutting down the high-pressure oil chamber of the isostatic pressing machine; the driver is used for amplifying the signal output by the controller; and the oil return electromagnetic valve is used for receiving a signal from the controller and returning the hydraulic oil in the high-pressure oil chamber to an oil tank after being started. After the automation control is carried out on the static pressure of workpieces by the control device disclosed by the invention, both the effects of low production efficiency and workpiece pressing are improved.
Description
Technical field
The present invention relates to the extrusion technique field, be specifically related to a kind of control device and control method that waits press quietly.
Background technology
Isostatic pressing machine is the liquid medium that blank is placed this machine high pressure chest, makes around the workpiece and the static pressure that all is subjected to the superhigh pressure liquid medium up and down, makes its density even, dense structure.Existing isostatic pressing machine comprises framework usually, is positioned at the high pressure chest of framework, it is to carry out between the upper and lower beam of framework that dress is got material, can suppress the bigger workpiece of length if make these static pressure machines, except that the high pressure chest degree of depth increases, it is very high that framework also will be done, to realize packing into and taking out of workpiece, not only make machine volume huge, and the increase manufacturing cost.
For solving big length workpiece compacting problem, portable and the two kinds of isostatic pressing machines that are exclusively used in the big length workpiece of compacting of cap-rotating type of framework are arranged in the prior art: the portable isostatic pressing machine of framework is when packing into or take out workpiece, framework can be removed and expose high pressure chest, be convenient to packing into and taking out of big length workpiece, during work, framework moves into place, with begin after the high pressure chest centering pressurization; Cap-rotating type isostatic pressing machine, its job order are earlier workpiece to be loaded on high pressure chest, seal high pressure chest is suitable for reading with spiral cover again, then, inject hydraulic oil from the high pressure chest bottom, pressurize to workpiece, after pressurization finishes, twist and remove loam cake, take out workpiece again.Though more than the isostatic pressing machine of two kinds of structures can suppress big length workpiece, the dress of workpiece is got to be needed by artificial or with the electric hoist lifting, dress is got the workpiece inconvenience, production efficiency is low, labour intensity is big, and the complex structure of portable isostatic pressing machine particularly.Above-mentioned two kinds of static pressure machines all adopt superpressure oil pump directly to pressurize to high pressure chest, its shortcoming is the hydraulic system vulnerable to pollution, medium must adopt expensive transformer oil in the high pressure chest, high-pressure pump cost height, the maintenance cost height, and its control device is also relatively backward, causes production efficiency low, the weak effect of workpiece compacting.
Summary of the invention
At above-mentioned technical problem, the invention provides a kind of control device and method that waits press quietly, after the present invention controlled the static pressure implementation automation of workpiece, effect low for production efficiency and the workpiece compacting all increased.
The technical scheme that realizes the object of the invention is as follows:
Wait the control device of press quietly, comprise pressure sensor, this pressure sensor is used to detect the hydraulic fluid pressure in the high-voltage oil cavity that waits press quietly; And
The analog signal conversion that analog-digital converter, this analog-digital converter will come from pressure sensor is data signal output; And
Controller, after this controller receives and comes from the data signal of analog-digital converter, after comparing with the force value of establishing in it, judge whether to continue input pressure oil, and the control magnetic valve turn-offs the pressure of the interior hydraulic oil of high-voltage oil cavity is kept to the high-voltage oil cavity that waits press quietly; And
Magnetic valve, this magnetic valve receives the control signal that comes from controller, and the high-voltage oil cavity that waits press quietly is opened or closed; And
Driver, this driver amplifies the signal of controller output; And
Hydraulic pump, this hydraulic pump receives the signal that comes from driver output, and hydraulic oil is inputed in the high-voltage oil cavity that waits press quietly;
And oil return solenoid valve, this oil return solenoid valve receives the signal that comes from controller, and the hydraulic oil in the high-voltage oil cavity is back in the fuel tank.
Wait the control method of press quietly, may further comprise the steps:
Step 4, controller control control closed electromagnetic valve waits static pressure by the hydraulic oil in the high-voltage oil cavity to workpiece, and such pressure keeps N after second, and controller is opened oil return solenoid valve and is back to fuel tank by the hydraulic oil in the high-voltage oil cavity.
The invention has the beneficial effects as follows: after the present invention controlled the static pressure implementation automation of workpiece, effect low for production efficiency and the workpiece compacting all increased.
Description of drawings
Fig. 1 is a circuit block diagram of the present invention;
Fig. 2 is control flow schematic diagram among the present invention;
In the accompanying drawing, 10 is pressure sensor, and 20 is analog-digital converter, and 30 is controller, and 40 is magnetic valve, and 50 is driver, and 60 is hydraulic pump, and 70 is oil return solenoid valve.
The specific embodiment
With reference to Fig. 1, the control device that waits press quietly of the present invention comprises pressure sensor 10, and this pressure sensor 10 is used to detect the hydraulic fluid pressure in the high-voltage oil cavity that waits press quietly; And
The analog signal conversion that analog-digital converter 20, this analog-digital converter will come from pressure sensor is data signal output; And
Controller 30, after this controller receives and comes from the data signal of analog-digital converter, after comparing with the force value of establishing in it, judge whether to continue input pressure oil, and the control magnetic valve turn-offs the pressure of the interior hydraulic oil of high-voltage oil cavity is kept to the high-voltage oil cavity that waits press quietly; And
Magnetic valve 40, this magnetic valve receives the control signal that comes from controller, and the high-voltage oil cavity that waits press quietly is opened or closed; And
Driver 50, this driver amplifies the signal of controller output; And
Hydraulic pump 60, this hydraulic pump receives the signal that comes from driver output, and hydraulic oil is inputed in the high-voltage oil cavity that waits press quietly;
And oil return solenoid valve 70, this oil return solenoid valve receives the signal that comes from controller, and the hydraulic oil in the high-voltage oil cavity is back in the fuel tank.
The control method that waits press quietly of the present invention may further comprise the steps:
Step 4, controller control control closed electromagnetic valve waits static pressure by the hydraulic oil in the high-voltage oil cavity to workpiece, and such pressure keeps N after second, the time that pressure keeps is provided with according to the workpiece size, and controller is opened oil return solenoid valve and is back to fuel tank by the hydraulic oil in the high-voltage oil cavity.
Claims (3)
1. wait the control device of press quietly, it is characterized in that: comprise pressure sensor, this pressure sensor is used to detect the hydraulic fluid pressure in the high-voltage oil cavity that waits press quietly; And
The analog signal conversion that analog-digital converter, this analog-digital converter will come from pressure sensor is data signal output; And
Controller, after this controller receives and comes from the data signal of analog-digital converter, after comparing with the force value of establishing in it, judge whether to continue input pressure oil, and the control magnetic valve turn-offs the pressure of the interior hydraulic oil of high-voltage oil cavity is kept to the high-voltage oil cavity that waits press quietly; And
Magnetic valve, this magnetic valve receives the control signal that comes from controller, and the high-voltage oil cavity that waits press quietly is opened or closed; And
Driver, this driver amplifies the signal of controller output; And
Hydraulic pump, this hydraulic pump receives the signal that comes from driver output, and hydraulic oil is inputed in the high-voltage oil cavity that waits press quietly;
And oil return solenoid valve, this oil return solenoid valve receives the signal that comes from controller, and the hydraulic oil in the high-voltage oil cavity is back in the fuel tank.
2. wait the control method of press quietly, it is characterized in that, may further comprise the steps:
Step 1, controller control magnetic valve is opened, and outputs signal to driver simultaneously, and driver amplifies the rear drive hydraulic pump works with this signal, and hydraulic oil is input in the high-voltage oil cavity that waits press quietly;
Step 2 detects the hydraulic fluid pressure in the high-voltage oil cavity wait press quietly by pressure sensor;
Step 3, controller obtains and comes from pressure value detected, if the force value that detects then continues to obtain the detected value of pressure sensor less than the force value of setting in the controller, if the force value that detects then enters step 4 more than or equal to the force value of setting in the controller;
Step 4, controller control control closed electromagnetic valve waits static pressure by the hydraulic oil in the high-voltage oil cavity to workpiece, and such pressure keeps N after second, and controller is opened oil return solenoid valve and is back to fuel tank by the hydraulic oil in the high-voltage oil cavity.
3. the control method that waits press quietly according to claim 2 is characterized in that, also is provided with following steps between step 3 and step 4:
Step 31, detect in the high-voltage oil cavity pressure whether doubly at the 1-1.1 of controller setting value, if testing result for being, then enters step 4, if testing result then enters step 32 for denying;
Step 32, if more than 1.1 times of force value that the force value that detects is set in controller, then controller stops output signal to driver, and the control oil return solenoid valve is opened and is released part hydraulic oil, force value in high-voltage oil cavity is at 1-1.1 times of the controller setting value, controller control oil return hydraulic valve turn-offs, and enters step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101916257A CN102229252A (en) | 2011-07-11 | 2011-07-11 | Control device and method of isostatic pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101916257A CN102229252A (en) | 2011-07-11 | 2011-07-11 | Control device and method of isostatic pressing machine |
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| CN102229252A true CN102229252A (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101916257A Pending CN102229252A (en) | 2011-07-11 | 2011-07-11 | Control device and method of isostatic pressing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529292A (en) * | 2012-01-04 | 2012-07-04 | 秦会斌 | Isostatic pressing laminating method and device |
| CN105082609A (en) * | 2014-05-08 | 2015-11-25 | 佛山市恒力泰机械有限公司 | Method for automatically regulating stroke of oil cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2929695A1 (en) * | 1979-07-21 | 1981-01-22 | Motoren Turbinen Union | HOT ISOSTATIC PRESS |
| US5009584A (en) * | 1989-03-02 | 1991-04-23 | Kabushiki Kaisha Kobe Seiko Sho | Interlock system for isostatic forming press |
| EP0893217A1 (en) * | 1997-07-21 | 1999-01-27 | Iberditan S.L. | Isostatic pressing die for making ceramic tiles and press fitted with the die |
| CN2488681Y (en) * | 2001-04-28 | 2002-05-01 | 广东锻压机床厂有限公司 | Accurate oil hydraulic press in high speed |
| US6558589B1 (en) * | 1997-10-13 | 2003-05-06 | Flow Holdings Gmbh (Sagl) Limited Liability Company | Method and a device for molding objects |
| CN202163040U (en) * | 2011-07-11 | 2012-03-14 | 陈小英 | Control device for isostatic press |
-
2011
- 2011-07-11 CN CN2011101916257A patent/CN102229252A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2929695A1 (en) * | 1979-07-21 | 1981-01-22 | Motoren Turbinen Union | HOT ISOSTATIC PRESS |
| US5009584A (en) * | 1989-03-02 | 1991-04-23 | Kabushiki Kaisha Kobe Seiko Sho | Interlock system for isostatic forming press |
| EP0893217A1 (en) * | 1997-07-21 | 1999-01-27 | Iberditan S.L. | Isostatic pressing die for making ceramic tiles and press fitted with the die |
| US6558589B1 (en) * | 1997-10-13 | 2003-05-06 | Flow Holdings Gmbh (Sagl) Limited Liability Company | Method and a device for molding objects |
| CN2488681Y (en) * | 2001-04-28 | 2002-05-01 | 广东锻压机床厂有限公司 | Accurate oil hydraulic press in high speed |
| CN202163040U (en) * | 2011-07-11 | 2012-03-14 | 陈小英 | Control device for isostatic press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529292A (en) * | 2012-01-04 | 2012-07-04 | 秦会斌 | Isostatic pressing laminating method and device |
| CN105082609A (en) * | 2014-05-08 | 2015-11-25 | 佛山市恒力泰机械有限公司 | Method for automatically regulating stroke of oil cylinder |
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Application publication date: 20111102 |