CN102555273B - Control system used for powder press - Google Patents
Control system used for powder press Download PDFInfo
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- CN102555273B CN102555273B CN201110440408.7A CN201110440408A CN102555273B CN 102555273 B CN102555273 B CN 102555273B CN 201110440408 A CN201110440408 A CN 201110440408A CN 102555273 B CN102555273 B CN 102555273B
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- 239000000843 powder Substances 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 230000009977 dual effect Effects 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The invention discloses a control system used for a powder press. The control system comprises an operating desk, a crankshaft encoder, a controller, a double valve, an electric adjusting motor, a pressure detection module and an electric adjusting encoder, wherein the output signals of the operating desk, the crankshaft encoder, the pressure detection module and the electric adjusting encoder are inputted into the controller; the output signal of the controller is inputted into the double valve and the electric adjusting motor; and the controller controls the double valve and the electric adjusting motor according to the signals of the operating desk, the crankshaft encoder, the pressure detection module and the electric adjusting encoder, so as to control the operation of the powder press. The control system is easy to use, has a low cost and a high integration level, can monitor process pressure in real time, and integrates the automatic electric adjustment control function and the automatic pressure-maintaining control function.
Description
Technical field
The invention belongs to fields of numeric control technique, in numerical control products, utilize CPU and a few external circuit safety and monitor and control powder pressure machine clutch, thereby realize the control to process, that a kind of integrated level is high, the control system that automaticity is high, for a kind of for the control system of powder press.
Background technology
Powder press is mainly used in all kinds of powder compacting processing, is widely used in the industries such as rubber, pharmacy, metallurgy and electronics.The mechanism form of powder press also has multiple: vertical type, rotary, double-pressure type.The compacting number of times of each working cycles can have 1 time, 2 times, 3 times or more.Powder press control system mostly in the market is PLC+ touch-sensitive display, and cost is high, and response speed is slow, and the pressure in can not Real-Time Monitoring process, can not reach to the quality control of converted products the effect that another people is satisfied; Inaccurate to the control of pressurize angle; And electric adjusting apparatus is adopted to manual control mode, low precision, efficiency is low, often needs repeatedly to attempt just can adjust to correct position.
Summary of the invention
The problem to be solved in the present invention is: at present powder press does not have effective control system, and cost is high, and response speed is slow, and the pressure in can not Real-Time Monitoring process is inaccurate to the control of pressurize angle.
Technical scheme of the present invention is: a kind of control system for powder press, comprise operating desk, bent axle encoder, controller, dual valve, electronic adjustment motor, pressure detecting module and the whole encoder of electric adjustable, the output signal input control device of operating desk, bent axle encoder, pressure detecting module and the whole encoder of electric adjustable, output signal input dual valve and the electronic adjustment motor of controller; Wherein operating desk sends the closure of operation and stop signal control dual valve, and then controls the action of powder press bent axle; Bent axle encoder is arranged on by shaft coupling on the bent axle of powder press, sends the anglec of rotation of bent axle to controller in real time; The powder press pressure of detection is converted to voltage signal by pressure detecting module, sends controller to, and whether controller is greater than the pressure threshold of setting according to the voltage signal real-time judge pressure collecting, and in the time being greater than described pressure threshold, disconnects dual valve; Operating desk also sends electricity and adjusts control signal, by the electronic adjustment motor rotation of controller control, the whole encoder of electric adjustable detects the position of the powder press impulse stroke adjusting device that electronic adjustment motor controls, in the time that the position of the whole encoder feedback of electric adjustable is identical with the target location of setting, stop electronic adjustment motor rotation.
Electronic adjustment motor is provided with 6, stroke, pressing stroke, operation that next rushes stroke and following two punch stroke are pressed in corresponding dress powder stroke, upper trimming die stroke, the top of controlling powder press impulse stroke adjusting device respectively, and stroke, pressing stroke are pressed in the corresponding described dress powder stroke of the whole encoder of electric adjustable, upper trimming die stroke, top, next rushes stroke and following two punch stroke is respectively equipped with 1.
The pressure detecting precision of pressure detecting module is 0.1 ton, and the pressure alarm parameter that controller arranges according to user, reports to the police and point out
Controller calculates the speed of powder press operation by the feedback signal of bent axle encoder, and records under each speed inertial angle when lathe stops, and obtains inertia table; In the time that powder press is provided with pressurize action, controller detects the speed of service of lathe, obtain the inertial angle under this speed by this speed inquiry inertia table, the pressurize angle and the dwell time that arrange according to pressurize action, calculate the anglec of rotation corresponding to bent axle, according to the feedback of bent axle encoder, controller control dual valve disconnects, bent axle is stopped in the pressurize angle arranging, realize the control of pressurize angle, after the dwell time arranging, the adhesive of controller control dual valve, powder press bent axle remains in operation, until whole working cycles finishes.
The invention provides a kind of use simple, lower cost, integrated level is high, Real-Time Monitoring tonnage possesses the control system of automatic electric adjustment control function and automatic pressure-maintaining control function simultaneously.
Brief description of the drawings
Fig. 1 is the integrated stand composition of control system of the present invention
Fig. 2 is the AD sample circuit circuit diagram of controller of the present invention.
Fig. 3 is pressure alarm flow chart of the present invention.
Fig. 4 is the connection layout of the present invention's electronic adjustment motor part and controller and the whole encoder of electric adjustable.
Detailed description of the invention
As Fig. 1, control system of the present invention comprises operating desk 1, bent axle encoder 2, controller 3, dual valve 4, electronic adjustment motor 5, pressure detecting module 6 and the whole encoder 7 of electric adjustable, the output signal input control device 3 of operating desk 1, bent axle encoder 2, pressure detecting module 6 and the whole encoder 7 of electric adjustable, output signal input dual valve 4 and the electronic adjustment motor 5 of controller 3; Wherein operating desk 1 sends operation and stop signal and electricity tune control signal to controller 3, controller 3 is controlled dual valve 4 adhesives in the time receiving run signal, make bent axle action, realize the processing action of powder pressure machine, controller 3 is controlled dual valve 4 and is disconnected in the time receiving stop signal, makes bent axle stop action; Bent axle encoder 2 is arranged on by shaft coupling on the bent axle of powder press, sends the anglec of rotation of bent axle to controller 3 in real time; The powder press pressure of detection is converted to voltage signal by pressure detecting module 6, sends controller 3 to, and whether controller 3 is greater than the pressure threshold of setting according to the voltage signal real-time judge pressure collecting, and in the time being greater than described pressure threshold, disconnects dual valve 4; Operating desk 1 also sends electricity and adjusts control signal, controlling electronic adjustment motor 5 by controller 3 turns round, the whole encoder 7 of electric adjustable detects the position of the powder press impulse stroke adjusting device that electronic adjustment motor 5 controls, in the time that the target location of position that the whole encoder 7 of electric adjustable feeds back and setting is identical, stops electronic adjustment motor 55 and turn round.Electronic adjustment motor 5 is provided with 6, stroke, pressing stroke, operation that next rushes stroke and following two punch stroke are pressed in corresponding dress powder stroke, upper trimming die stroke, the top of controlling powder press impulse stroke adjusting device respectively, and 6 strokes of the corresponding described row of the whole encoder 7 of electric adjustable are each is respectively equipped with 1.
The pressure detecting precision of pressure detecting module 6 is 0.1 ton, the pressure alarm parameter that controller 3 arranges according to user, report to the police and point out, the implementation method of pressure detecting is that first, pressure detecting module 6 is converted to pressure the magnitude of voltage of 0-10V, controller 3 gathers voltage by high-speed AD sample circuit, and be converted to corresponding force value, and judge whether to exceed the scope that user arranges for being shown to user simultaneously, in the time that pressure is undesirable, shuts down and point out user to process; This function is avoided occurring defective workpiece or has been reduced defective workpiece quantity, and can by mismachining tolerance control within the specific limits, to reducing useless part rate, improve homogeneity of product helpful, Fig. 2 is shown in by the hardware AD sample circuit of controller 3, reports to the police and points out flow chart to see Fig. 3.
The control method of electronic adjustment motor 5 below, operating desk 1 is provided with man-machine interface, comprises 5.7 cun of colored TFT display screens, the keyboard of adjusting the button such as reverse, automatic, semi-automatic to form to, electricity by numerical key, electricity levelling, operate by described man-machine interface, send operation signal to controller 3.The control of electronic adjustment motor 5 is divided into 2 kinds of patterns, is respectively electronic, automatic.The implementation of the compatible most powder pressure of electronic mode machine control system, controlled by user's manual operation, it is effective that controller 3 is controlled the whole motor 5 forward output signals of electric adjustable user during by " electricity levelling to " button, controls the whole motor 5 of the electric adjustable output signal of reversing during by " electricity is adjusted oppositely " button effective user; When " electricity levelling to " or " electricity is adjusted oppositely ", corresponding output is invalid unclamping.This kind of mode generally needs repeatedly operation adjustment could arrive target location, and efficiency is not high.When automated manner, user only need to input target location, the electronic adjustment motor 5 of current location automatic decision that controller 3 feeds back according to the whole encoder 7 of electric adjustable needs the direction of motion, and stop in the time moving to target location, if exceed target location, controller 3 can be adjusted automatically, record exceeds distance simultaneously, when carry out next time again, stop in advance output according to this distance, automatically stop at target location, greatly improved efficiency and the precision adjusted.Fig. 4 is the connection layout of electronic adjustment motor part and controller and the whole encoder of electric adjustable.
The present invention can realize the control of accurate pressurize angle, and controller 3 calculates the speed of powder press operation by the feedback signal of bent axle encoder 2, and records under each speed inertial angle when lathe stops, and obtains inertia table; In the time that powder press is provided with pressurize action, controller 3 detects the speed of service of lathe, obtain the inertial angle under this speed by this speed inquiry inertia table, the pressurize angle and the dwell time that arrange according to pressurize action, calculate the anglec of rotation corresponding to bent axle, according to the feedback of bent axle encoder 2, controller 3 is controlled dual valve 4 and is disconnected, bent axle is stopped in the pressurize angle arranging, realize the control of pressurize angle, after the dwell time arranging, controller 3 is controlled dual valve 4 adhesives, powder press bent axle remains in operation, until whole working cycles finishes.
For example current lathe speed is 20 revs/min, and the inertia of remembering under this speed is 5 degree, is provided with 3 pressurizes (can arrange at most 10 times), and pressurize angle and time are respectively: 120 degree for the first time, 0.8 second; 140 degree for the second time, 1 second; 160 degree for the third time, 2 seconds.Nonshared control unit is being controlled after crankshaft operation, and the angle of feeding back when bent axle encoder 2 is 115 while spending, disconnects dual valve 4, after bent axle is static, keeps adhesive dual valve after 0.8 second, makes crankshaft operation; The like, until 3 pressurizes that arrange have been moved.
Claims (4)
1. the control system for powder press, it is characterized in that comprising operating desk (1), bent axle encoder (2), controller (3), dual valve (4), electronic adjustment motor (5), pressure detecting module (6) and the whole encoder of electric adjustable (7), the output signal input control device (3) of operating desk (1), bent axle encoder (2), pressure detecting module (6) and the whole encoder of electric adjustable (7), output signal input dual valve (4) and the electronic adjustment motor (5) of controller (3); Wherein operating desk (1) sends the closure of operation and stop signal control dual valve (4), and then controls the action of powder press bent axle; Bent axle encoder (2) is arranged on by shaft coupling on the bent axle of powder press, sends the anglec of rotation of bent axle to controller (3) in real time; The powder press pressure of detection is converted to voltage signal by pressure detecting module (6), send controller (3) to, whether controller (3) is greater than the pressure threshold of setting according to the voltage signal real-time judge pressure collecting, in the time being greater than described pressure threshold, disconnect dual valve (4); Operating desk (1) also sends electricity and adjusts control signal, control electronic adjustment motor (5) running by controller (3), the whole encoder of electric adjustable (7) detects the position of the powder press impulse stroke adjusting device that electronic adjustment motor (5) controls, in the time that the position of the whole encoder of electric adjustable (7) feedback is identical with the target location of setting, stop electronic adjustment motor (5) running.
2. a kind of control system for powder press according to claim 1, it is characterized in that electronic adjustment motor (5) is provided with 6, stroke, pressing stroke, operation that next rushes stroke and following two punch stroke are pressed in corresponding dress powder stroke, upper trimming die stroke, the top of controlling powder press impulse stroke adjusting device respectively, and stroke, pressing stroke are pressed in the corresponding described dress powder stroke of the whole encoder of electric adjustable (7), upper trimming die stroke, top, next rushes stroke and following two punch stroke is respectively equipped with 1.
3. a kind of control system for powder press according to claim 1 and 2, the pressure detecting precision that it is characterized in that pressure detecting module (6) is 0.1 ton, the pressure alarm parameter that controller (3) arranges according to user, reports to the police and points out.
4. a kind of control system for powder press according to claim 1 and 2, it is characterized in that controller (3) calculates the speed of powder press operation by the feedback signal of bent axle encoder (2), and record under each speed inertial angle when lathe stops, obtaining inertia table, in the time that powder press is provided with pressurize action, controller (3) detects the speed of service of lathe, obtain the inertial angle under this speed by this speed inquiry inertia table, the pressurize angle and the dwell time that arrange according to pressurize action, calculate the anglec of rotation corresponding to bent axle, according to the feedback of bent axle encoder (2), controller (3) is controlled dual valve (4) and is disconnected, bent axle is stopped in the pressurize angle arranging, realize the control of pressurize angle, after the dwell time arranging, controller (3) is controlled dual valve (4) adhesive, powder press bent axle remains in operation, until whole working cycles finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440408.7A CN102555273B (en) | 2011-12-24 | 2011-12-24 | Control system used for powder press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440408.7A CN102555273B (en) | 2011-12-24 | 2011-12-24 | Control system used for powder press |
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| Publication Number | Publication Date |
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| CN102555273A CN102555273A (en) | 2012-07-11 |
| CN102555273B true CN102555273B (en) | 2014-12-10 |
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| CN201110440408.7A Active CN102555273B (en) | 2011-12-24 | 2011-12-24 | Control system used for powder press |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104019068B (en) * | 2014-06-11 | 2017-06-30 | 虔东稀土集团股份有限公司 | The three-shaft linkage control device and method of powder press hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200939706Y (en) * | 2006-08-28 | 2007-08-29 | 南京东部精密机械有限公司 | Pressure monitor of dry powder hydraulic press |
| CN100360306C (en) * | 2004-12-09 | 2008-01-09 | 南京埃斯顿工业自动化有限公司 | Mechanical Press Automatic Control System |
| CN100415502C (en) * | 2006-10-16 | 2008-09-03 | 许阳 | Special programmable electric governing system fordrypowder press and its control mode |
| CN201534391U (en) * | 2009-05-22 | 2010-07-28 | 华茂机械(肇庆)有限公司 | Cam control device of high-speed press |
| CN201552769U (en) * | 2009-12-02 | 2010-08-18 | 扬州市海力精密机械制造有限公司 | Detecting device of a dry-type or wet-type clutch brake angle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001071197A (en) * | 1999-09-06 | 2001-03-21 | Nippon Reliance Kk | Automatic transportation control method for press and device therefor |
| CN202498773U (en) * | 2011-12-24 | 2012-10-24 | 南京埃斯顿自动化股份有限公司 | Control system used for powder pressing machine |
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2011
- 2011-12-24 CN CN201110440408.7A patent/CN102555273B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360306C (en) * | 2004-12-09 | 2008-01-09 | 南京埃斯顿工业自动化有限公司 | Mechanical Press Automatic Control System |
| CN200939706Y (en) * | 2006-08-28 | 2007-08-29 | 南京东部精密机械有限公司 | Pressure monitor of dry powder hydraulic press |
| CN100415502C (en) * | 2006-10-16 | 2008-09-03 | 许阳 | Special programmable electric governing system fordrypowder press and its control mode |
| CN201534391U (en) * | 2009-05-22 | 2010-07-28 | 华茂机械(肇庆)有限公司 | Cam control device of high-speed press |
| CN201552769U (en) * | 2009-12-02 | 2010-08-18 | 扬州市海力精密机械制造有限公司 | Detecting device of a dry-type or wet-type clutch brake angle |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-71197A 2001.03.21 * |
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Effective date of registration: 20151103 Address after: 211100, No. 155, general road, Jiangning Development Zone, Nanjing, Jiangsu Patentee after: Nanjing Estun Automation Co., Ltd. Address before: 211100, No. 155, general road, Jiangning Development Zone, Nanjing, Jiangsu Patentee before: Nanjing Estun Automation Co., Ltd. Patentee before: Aierfa Electrohydraulic Technology Co., Ltd., Nanjing City |