CN102555273A - Control system used for powder press - Google Patents
Control system used for powder press Download PDFInfo
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- CN102555273A CN102555273A CN2011104404087A CN201110440408A CN102555273A CN 102555273 A CN102555273 A CN 102555273A CN 2011104404087 A CN2011104404087 A CN 2011104404087A CN 201110440408 A CN201110440408 A CN 201110440408A CN 102555273 A CN102555273 A CN 102555273A
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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 few external circuit safety ground to keep watch on and control powder pressure machine clutch; Thereby realize control to process; Be that a kind of integrated level is high, the control system that automaticity is high is a kind of control system that is used for powder press.
Background technology
Powder press is mainly used in all kinds of powder compacting processing, is widely used in 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 operation cycle can have 1 time, 2 times, 3 times or be more.Mostly powder press control system in the market is the PLC+ touch-sensitive display, and cost is high, and response speed is slow, can not monitor the pressure in the process in real time, can not reach the effect of other people's satisfaction to the quality control of converted products; Inaccurate to the control of pressurize angle; And electric adjusting apparatus is adopted manual control mode, low precision, efficient is low, often needs repeatedly to attempt just adjusting to correct position.
Summary of the invention
The problem that the present invention will solve is: at present powder press does not have effective control system, and cost is high, and response speed is slow, can not monitor the pressure in the process in real time, and is inaccurate to the control of pressurize angle.
Technical scheme of the present invention is: a kind of control system that is used for powder press; Comprise operating desk, bent axle encoder, controller, dual valve, electronic adjustment motor, pressure detecting module and electronic adjustment encoder; The output signal input controller of operating desk, bent axle encoder, pressure detecting module and electronic adjustment encoder, the 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 the action of control powder press bent axle; The bent axle encoder is installed in through shaft coupling on the bent axle of powder press, and the anglec of rotation with bent axle sends controller in real time; The pressure detecting module converts the powder press pressure that detects into voltage signal, sends controller to, and controller whether greater than the pressure threshold of setting, when greater than said pressure threshold, breaks off dual valve according to the voltage signal real-time judge pressure that collects; Operating desk also sends electricity regulation and control system signal; Control electronic adjustment motor rotation through controller; The tone coded device of electricity detects the position of the powder press impulse stroke adjusting device that electronic adjustment motor controlled; When the target location of the position of the tone coded device of electricity feedback and setting is identical, stop electronic adjustment motor rotation.
Electronic adjustment motor is provided with 6; Dress powder stroke, upper trimming die stroke, roof pressure stroke, pressing stroke, next operation towards stroke and following two punch stroke of corresponding respectively control powder press impulse stroke adjusting device, the corresponding said stroke of electric tone coded device is provided with 6.
The pressure detecting precision of pressure detecting module is 0.1 ton, and controller is according to the pressure alarm parameter that the user is provided with, and reports to the police and points out
Controller calculates the speed of powder press operation through the feedback signal of bent axle encoder, and writes down the inertial angle when lathe stops under each speed, obtains the inertia table; When powder press was provided with the pressurize action, controller detected the speed of service of lathe, obtained the inertial angle under this speed through this speed inquiry inertia table; According to pressurize angle and the dwell time that the pressurize action is provided with, calculate the corresponding anglec of rotation of bent axle, according to the feedback of bent axle encoder; Controller control dual valve breaks off, and bent axle is stopped in the pressurize angle that is provided with, and realizes the control of pressurize angle; After the dwell time that is provided with; The adhesive of controller control dual valve, the powder press bent axle remains in operation, and finishes until whole operation cycle.
It is simple to the invention provides a kind of use, lower cost, and integrated level is high, monitors tonnage in real time, possesses the control system of automatic electric adjustment control function and automatic holding pressure control function simultaneously.
Description of drawings
Fig. 1 controls the integrated stand composition of system for the present invention
Fig. 2 is the AD sample circuit circuit diagram of controller of the present invention.
Fig. 3 is a pressure alarm flow chart of the present invention.
Fig. 4 is the connection layout of the electronic adjustment motor part of the present invention with controller and electric tone coded device.
The specific embodiment
Like Fig. 1; Control of the present invention system comprises operating desk 1, bent axle encoder 2, controller 3, dual valve 4, electronic adjustment motor 5, pressure detecting module 6 and electronic adjustment encoder 7; The output signal input controller 3 of operating desk 1, bent axle encoder 2, pressure detecting module 6 and electronic adjustment encoder 7, the 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 regulation and control system signal and gives controller 3; Controller 3 is controlled dual valve 4 adhesives when receiving run signal; Make the bent axle action; Realize the processing action of powder pressure machine, controller 3 is controlled dual valve 4 and is broken off when receiving stop signal, make bent axle stop action; Bent axle encoder 2 is installed in through shaft coupling on the bent axle of powder press, and the anglec of rotation with bent axle sends controller 3 in real time; Pressure detecting module 6 converts the powder press pressure that detects into voltage signal, sends controller 3 to, and controller 3 whether greater than the pressure threshold of setting, when greater than said pressure threshold, breaks off dual valve 4 according to the voltage signal real-time judge pressure that collects; Operating desk 1 also sends electricity regulation and control system signal; Through electronic adjustment motor 5 runnings of controller 3 controls; The position of the powder press impulse stroke adjusting device that the electronic adjustment motor 5 of tone coded device 7 detections of electricity is controlled; When the target location of the position of the tone coded device of electricity 7 feedbacks and setting is identical, stops electronic adjustment motor 55 and turn round.Electronic adjustment motor 5 is provided with 6; Dress powder stroke, upper trimming die stroke, roof pressure stroke, pressing stroke, next operation towards stroke and following two punch stroke of corresponding respectively control powder press impulse stroke adjusting device, electric tone coded device 7 corresponding said strokes are provided with 6.
The pressure detecting precision of pressure detecting module 6 is 0.1 ton, and controller 3 is according to the pressure alarm parameter that the user is provided with, and reports to the police and points out; The implementation method of pressure detecting is that at first, pressure detecting module 6 converts pressure into the magnitude of voltage of 0-10V; Controller 3 is gathered voltage through the high-speed AD sample circuit; And convert corresponding force value into, and be used to be shown to the user and judge whether simultaneously to exceed the scope that the user is provided with, when pressure is undesirable, shut down and the prompting user processing; This function is avoided occurring defective workpiece or has been reduced defective workpiece quantity; And can be with mismachining tolerance control within the specific limits, to reducing useless part rate, it is helpful to improve homogeneity of product; The hardware AD sample circuit of controller 3 is seen Fig. 2, and warning and prompting flow chart are seen Fig. 3.
Below the control method of electronic adjustment motor 5; Operating desk 1 is provided with man-machine interface, comprises 5.7 cun colored TFT display screens, the keyboard of transferring button such as reverse, automatic, semi-automatic to form to, electricity by numerical key, electricity levelling; Operate through said 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 compatible present most of powder pressure machines of electronic mode are controlled the implementation of system; Control by user's manual operation; Controller 3 is controlled electronic adjustment motor 5 during by " electricity levelling to " button the user, and just to transfer out signal effective, and it is effective to control electronic adjustment motor 5 counter-rotating output signals the user during by " electricity is transferred reverse " button; When unclamping " electricity levelling to " or " electricity is transferred reverse ", corresponding output is invalid.This kind mode generally needs the repeatable operation adjustment could arrive the target location, and efficient is not high.During automated manner, the user only need import the target location, and controller 3 is judged electronic adjustment motor 5 needs travel directions automatically according to the current location of tone coded device 7 feedbacks of electricity; And when moving to the target location, stop, if exceed the target location, controller 3 is adjustment automatically; Record exceeds distance simultaneously; Stop output in advance according to this distance when carry out next time again, stop at the target location automatically, improved the efficient and the precision of adjustment greatly.Fig. 4 is an electronic adjustment motor part and the connection layout of controller and electric tone coded device.
The present invention can realize accurate pressurize angle control, and controller 3 calculates the speed of powder press operation through the feedback signal of bent axle encoder 2, and writes down the inertial angle when lathe stops under each speed, obtains the inertia table; When powder press was provided with the pressurize action, controller 3 detected the speed of service of lathe, obtained the inertial angle under this speed through this speed inquiry inertia table; According to pressurize angle and the dwell time that the pressurize action is provided with, calculate the corresponding anglec of rotation of bent axle, according to the feedback of bent axle encoder 2; Controller 3 control dual valves 4 break off, and bent axle is stopped in the pressurize angle that is provided with, and realize the control of pressurize angle; After the dwell time that is provided with; 4 adhesives of controller 3 control dual valves, the powder press bent axle remains in operation, and finishes until whole operation cycle.
For example current lathe speed is 20 rev/mins, and the inertia of remembering under this speed is 5 degree, is provided with 3 pressurizes (can be provided with at most 10 times), and pressurize angle and time are respectively: 120 spend 0.8 second for the first time; 140 spend 1 second for the second time; 160 spend 2 seconds for the third time.Then nonshared control unit is behind the control crankshaft operation, when bent axle encoder 2 angles fed back are 115 when spending, breaks off dual valve 4, after bent axle is static, keeps adhesive dual valve after 0.8 second, makes crankshaft operation; And the like, accomplish until 3 pressurizes action that is provided with.
Claims (4)
1. control system that is used 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 electronic adjustment encoder (7); The output signal input controller (3) of operating desk (1), bent axle encoder (2), pressure detecting module (6) and electronic adjustment encoder (7), the 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 the action of control powder press bent axle; Bent axle encoder (2) is installed in through shaft coupling on the bent axle of powder press, and the anglec of rotation with bent axle sends controller (3) in real time; Pressure detecting module (6) converts the powder press pressure that detects into voltage signal; Send controller (3) to; Controller (3) whether greater than the pressure threshold of setting, when greater than said pressure threshold, breaks off dual valve (4) according to the voltage signal real-time judge pressure that collects; Operating desk (1) also sends electricity regulation and control system signal; Through controller (3) the electronic adjustment motor of control (5) running; The position of the powder press impulse stroke adjusting device that the tone coded device of electricity (7) the electronic adjustment motor of detection (5) is controlled; When the target location of the position of the tone coded device of electricity (7) feedback and setting is identical, stops electronic adjustment motor (5) and turn round.
2. a kind of control system that is used for powder press according to claim 1; It is characterized in that electronic adjustment motor (5) is provided with 6; Dress powder stroke, upper trimming die stroke, roof pressure stroke, pressing stroke, next operation towards stroke and following two punch stroke of corresponding respectively control powder press impulse stroke adjusting device, the corresponding said stroke of electric tone coded device (7) is provided with 6.
3. a kind of control system that is used 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, controller (3) is according to the pressure alarm parameter that the user is provided with, and reports to the police and points out.
4. a kind of control system that is used for powder press according to claim 1 and 2; It is characterized in that controller (3) calculates the speed of powder press operation through the feedback signal of bent axle encoder (2); And write down the inertial angle when lathe stops under each speed, obtain the inertia table; When powder press was provided with the pressurize action, controller (3) detected the speed of service of lathe, obtained the inertial angle under this speed through this speed inquiry inertia table; According to pressurize angle and the dwell time that the pressurize action is provided with, calculate the corresponding anglec of rotation of bent axle, according to the feedback of bent axle encoder (2); Controller (3) control dual valve (4) breaks off, and bent axle is stopped in the pressurize angle that is provided with, and realizes the control of pressurize angle; After the dwell time that is provided with; The adhesive of controller (3) control dual valve (4), the powder press bent axle remains in operation, and finishes until whole operation cycle.
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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| CN102555273A true CN102555273A (en) | 2012-07-11 |
| CN102555273B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019068A (en) * | 2014-06-11 | 2014-09-03 | 虔东稀土集团股份有限公司 | Three-shaft linkage control device and method of hydraulic system of powder pressing machine |
Citations (7)
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| JP2001071197A (en) * | 1999-09-06 | 2001-03-21 | Nippon Reliance Kk | Automatic transportation control method for press and device therefor |
| 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 | Automatic control system of mechanical 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 |
| 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 |
-
2011
- 2011-12-24 CN CN201110440408.7A patent/CN102555273B/en active Active
Patent Citations (7)
| 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 |
| CN100360306C (en) * | 2004-12-09 | 2008-01-09 | 南京埃斯顿工业自动化有限公司 | Automatic control system of mechanical press |
| 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 |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019068A (en) * | 2014-06-11 | 2014-09-03 | 虔东稀土集团股份有限公司 | Three-shaft linkage control device and method of hydraulic system of powder pressing machine |
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| CN102555273B (en) | 2014-12-10 |
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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 |