CN1935499A - Special programmable electric governing system fordrypowder press and its control mode - Google Patents
Special programmable electric governing system fordrypowder press and its control mode Download PDFInfo
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- CN1935499A CN1935499A CN 200610096769 CN200610096769A CN1935499A CN 1935499 A CN1935499 A CN 1935499A CN 200610096769 CN200610096769 CN 200610096769 CN 200610096769 A CN200610096769 A CN 200610096769A CN 1935499 A CN1935499 A CN 1935499A
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Abstract
The present invention relates to a special-purpose programmable electric regulation system for dried powder press and its control mode. Said system includes the following several portions: frequency converter, reducing motor, rotary coder, transmission shaft, transmission gear pair, turning handle, universal drive joint, coder gear, PLC programmable controller, touch screen, proximity switch and motor contactor. The frequency converter, PLC programmable controller and motor contactor are mounted in the electric control box interior, the touch screen is mounted on the panel of electric control box, the PLC programmable controller is connected with motor contactor, and the touch screen is connected with PLC programmable controller by means of special-purpose communication cable. Besides, said invention also provides the concrete working principle of said system.
Description
Technical field
Special programmable electric governing system fordrypowder press of the present invention and control mode thereof relate to is dedicated program formula electric operation dispatching system and control mode thereof on a kind of forming parameter governor motion that is applied in the mechanical type full-automatic dry powder press, is applicable to the employed mechanical type full-automatic dry powder press of pulverulent product moulding such as all powder metallurgy, magnetic material, carbide alloy, fine ceramics.
Background technology
In recent years, the forming technique of pulverulent product and Equipment Development thereof are very fast, and especially mechanical type full-automatic dry powder press China grows out of nothing, only spent about more than 10 years time until popularizing.But domestic nearly all is being hand aspect the molding parameter governor motion at employed mechanical type full-automatic dry powder press of pulverulent product moulding such as powder metallurgy, magnetic material, carbide alloy, fine ceramics at present.Brought therefrom, labour intensity is big, and die change frame (tool) efficient is low, and degree of regulation is not high, and waste of material waits not enough more.
Digital control system has applied in the mechanical type dry powder press before the several years, yet does not popularize.Analyze reason have following some:
(1) cost is higher, the adjusting of press has Nei Chong under adjustment stroke such as pressing stroke, roof pressure stroke, packed height, upper punch, main motor speed and the mould bases, following outwash filler stroke etc., as use digital control system to need more than seven, such digital control system is expensive.
(2) because the adjustment of press is static, so interlock in the digital control system, interpolation function fortune are not used, and this part is the elite place of digital control system.Above-mentioned 2 explanations use digital control system as adjusting axle on standard machinery formula press, and are both uneconomical, caused waste again.
Summary of the invention
Purpose of the present invention provides a kind of special programmable electric governing system fordrypowder press and control mode thereof at above-mentioned weak point, the program mode electric operation dispatching system has two main functions: the one, adjust function, promptly replace manual setting with electronic adjustment, it can alleviate operator's labour intensity, the 2nd, governor motion is carried out sequencing, it can be stored in the adjusting parameter of each stampings in the press, when suppressing this part at every turn, only needs to access its parameter in press and gets final product.Automation be can realize by dedicated program formula electric operation dispatching system, efficient and precision that the dry powder press molding parameter is adjusted improved.
Realize by following scheme in powder press dedicated program formula electric operation dispatching system and control mode thereof:
Special programmable electric governing system fordrypowder press comprises frequency converter, reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear, PLC Programmable Logic Controller (hereinafter to be referred as PLC), touch-screen, near switch, motor contactor.Frequency converter, PLC Programmable Logic Controller, motor contactor are installed in electric control box inside; Touch-screen is installed on the panel of electric control box; Reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear etc. are installed in dry powder press lathe bed one side, are installed in dry powder press lathe bed inside near switch.Reducing motor is the motor that has decelerator, and reducing motor is equipped with braking mechanism.
Power supply links to each other with frequency converter, frequency converter links to each other with corresponding reducing motor by the motor contactor, the PLC Programmable Logic Controller links to each other with the motor contactor, the dead electricity that gets by holding wire control motor contactor coil, the PLC Programmable Logic Controller also links to each other with the signal end of frequency converter simultaneously, the operation of control frequency converter, being installed in the rotary encoder of reducing motor one side and the bound of corresponding stroke links to each other with the PLC Programmable Logic Controller near the auxiliary contact of switch by the motor contactor, rotary encoder sends to PLC Programmable Logic Controller with A/B phase pulse mode with signal with the stroke of each regulating shaft, and touch-screen links to each other with the PLC Programmable Logic Controller by special-purpose communication cable.
Frequency converter can adopt frequency converters such as the Varispeed G7 of An Chuan company series, will be from the 50HZ electric energy of electrical network by inversion, convert the three-phase electric energy of frequency adjustable to, its objective is in order effectively to control the rotating speed and the moment of reducing motor, adopt high speed and two kinds of control methods of low speed,, raise the efficiency at a high speed for rapid adjustment, low speed improves precision for accurate positioning.
Reducing motor has braking mechanism, by 1: 30～1: 60 speed reducing ratio speed is become 24～48 rev/mins, this speed is about the beat that staff shakes, and power output output can be amplified by decelerator in addition, and the power of motor is only got final product for 0.1-0.2kW.Brake mainly is to prevent the inertia surpassed distance, makes accurate positioning, also can prevent in addition from slipping.
Rotary encoder is installed in reducing motor one side, synchronous with reducing motor, reducing motor is provided with some, every reducing motor one end all is equipped with a rotary encoder, rotary encoder can adopt encoders such as Japanese KOYO company's T DR-500-RZ type, rotary encoder links to each other with Programmable Logic Controller PLC by shielding line, and the stroke of each regulating shaft is sent to PLC with A/B phase pulse mode with signal, carries out internal arithmetic by PLC.
The PLC Programmable Logic Controller is the core of control, can adopt Programmable Logic Controllers such as the Japanese KOYO SN64 of company type, calculate each adjustment stroke and preservation by receiving the rotary encoder pulse, and this value is presented on the touch-screen, handle outside various signals simultaneously, according to the signal that touch-screen input value and rotary encoder feed back to, the start and stop and the high low cruise of control reducing motor reach the purpose of closed-loop control.
Touch-screen is the important component part of system as man-machine interface, and each stroke and parameter adjustment all come and the PLC communication by it.Can adopt touch-screens such as the Japanese KOYO GC-53LM3 of company type.
The motor contactor can adopt the motor contactors such as LC1-0911C type of Schneider company, major control reducing motor, rotary encoder, near switch electric and dead electricity, be the important slave part of whole system.
The extreme position of adjustment stroke adopts soft spacing and hard limited double-insurance control, the soft spacing dual mode that has: near switch and the control of PLC internal processes, since zero point to range, can adopt the PR12-4DN of OMRON company type etc. near switch near switch; Hard spacing by the electromechanical stop realization, guarantee that each adjustment stroke is unlikely to come off.
The control mode of special programmable electric governing system fordrypowder press:
The employed mechanical type full-automatic dry powder press of pulverulent product moulding (hereinafter to be referred as press), the governor motion parameter comprises the adjustment of upper punch stroke, the adjustment of roof pressure stroke, the adjustment of filler stroke, pressing stroke adjustment, next adjusts parameter etc. towards stroke adjustment, following two punch stroke, and is optional according to different some parameter of press model.The adjustment of each parameter all is furnished with a reducing motor.The adjustment of each parameter is not to carry out simultaneously, so we can adopt the method for some reducing motors of a frequency converter wheel current control to realize.
The control of whole procedure formula electric operation dispatching system comprises that motor drags and the sequential control two large divisions.It is control to reducing motor that motor drags, and reducing motor is the reducing motor that has brake, drives some reducing motors in turn by a frequency converter.Sequential control is meant by touch-screen and operates, and is handled by PLC, controls the adhesive and the disconnection of each motor contactor, thus the start and stop of control reducing motor.
Select the operation that to adjust by touch-screen, touch-screen sends to PLC by special-purpose communication cable with information, handle by PLC, PLC disconnects according to the adhesive of the signal control motor contactor that receives, once has only the adhesive of a motor contactor, in case motor contactor adhesive, the corresponding reducing motor of this motor contactor control and frequency converter are connected so, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and with signal back PLC inside, other reducing motor and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch.In case a certain reducing motor gets, we just can carry out parameter adjustment by touch-screen, method is: PLC sends order to frequency converter, the start and stop and the speed of service by this reducing motor of Frequency Converter Control, this rotary encoder sends the pulse of A/B phase to PLC, and the PLC inner high speed is counted the step-by-step counting of A/B phase, draws the traveled distance of adjustment through computing, and data are stored in the PLC register remember, so that next energising can be remembered traveled distance.The extreme position of adjustment stroke adopts soft spacing and hard limited double-insurance control, the soft spacing dual mode that has: near switch and the control of PLC internal processes.When adjusting stroke is zero or lower limit during near inductive switching, can not adjust downwards again, when stroke maximum or the upper limit during near inductive switching, can not adjust upward equally again.Adopt hard spacing control simultaneously, realize, guarantee that each adjustment stroke is unlikely to come off by electromechanical stop.
Electricity regulation and control system system mode: the operation of system is mainly finished by touch-screen, divides manually control, semiautomatic control and Automatic Control (prescription) function.
A) manually control.Parameter unit is mm on the touch-screen.
1), select " electricity is transferred and selected " picture, need to select the reducing motor stroke adjusted as required, be adjusted into example with upper punch, select " upper punch adjustment " picture.Upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC inside.
2), the travel position of upper punch reality is presented on the touch-screen selection manual control button.
3), at a high speed and low speed select, in the time of need carrying out coarse adjustment, select at a high speed, electricity is transferred the frequency converter high-speed cruising, general 50HZ; In the time of need finely tuning, select low speed, the frequency converter low cruise, general 10HZ, accuracy generally can reach 0.01mm.
4), adjust.By " liter " button, then corresponding reducing motor just changes, and stroke increases; By " falling " button, then corresponding reducing motor counter-rotating, stroke reduces.Unclamp the corresponding button, then reducing motor stops at once.
5), when corresponding adjustment stroke is in the lower position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation.The upper and lower limit indicator lamp is bright on the touch-screen simultaneously.
B) semiautomatic control.Parameter unit is mm on the touch-screen.
1), select " electricity is transferred and selected " picture, need to select the reducing motor stroke adjusted as required, be adjusted into example with upper punch, select " upper punch adjustment " picture.Upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC inside.
2), the travel position of upper punch reality is presented on the touch-screen, selects automatic control button.Automatically select the frequency converter high-speed cruising when controlling automatically.
3), increment is set: import the displacement that will adjust, in adjusting automatically, this value can reduce gradually with the reducing motor running, and until being 0, reducing motor is out of service.
4), adjust.Click " liter " button, then frequency converter drives corresponding reducing motor just changes, stroke increases a setting value (this setting value is provided with) in " increment setting ", high-speed cruising during beginning, when treating near target location 0.1mm～1.0mm, PLC control inverter converts is a low cruise, guarantee to put in place accurately; Click " falling " button, then corresponding reducing motor counter-rotating, stroke reduces a setting value (this setting value is provided with) in " increment setting ", equally, high-speed cruising during beginning is when treating near target location 0.1mm～1.0mm, PLC control inverter converts is a low cruise, guarantee to put in place accurately.By " time-out " button, then adjust automatically to suspend and carry out.
5), when corresponding adjustment stroke is in upper limit position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation.The upper and lower limit indicator lamp is bright on the touch-screen simultaneously.
6), non-adjustable scope on the touch-screen.Can not carry out electricity and transfer in this scope, this is the safeguard protection setting, in the dust cycle of press; the adjusting of some phase place be in interlocking state as: when being in the filler position; the adjusting of packed height can't be carried out, and when entering demoulding position, then can carry out.The roof pressure stroke then can only be when the filler position can, otherwise can decrease outer components and parts, and cause motor overload to damage, produce unpredictable consequence.This parameter is provided with according to adjusting the object difference, and the scope of setting is 0 °～360 °.
C) Automatic Control (prescription function).Can store 60 groups of data altogether, be respectively " memory 1～60 ", be example with memory 1 below, and other storage operation control mode is all identical with memory 1:
1), data storage.With a kind of upper punch of product, filler, compacting, roof pressure, after next dashes, the travel parameters of following two punch adjusts, its related data is stored in memory 1 register, also can import production code member simultaneously.Method is:
In the input domain on " electricity is transferred and selected " picture, input digit 1 (being selection memory 1), and then select corresponding stroke picture, as " upper punch adjustment " picture, select " affirmation writes " button, then the currency of upper punch stroke has been kept in the memory 1.Preserve dress powder height, compacting, roof pressure successively, next dashes, the currency of the stroke of following two punch.After having stored, at " memory 1 " picture input production code member.
2), call the data of storage.When changing product, if during original existing storage data, only need call related data after, finely tune accordingly again and get final product.Method is:
On " electricity is transferred and selected " picture, select " automatically " picture, select by " memory 1 ", then each run-length data of original storage is presented on the touch-screen, press the Auto button, then upper punch, filler, compacting, roof pressure, next dashes, two fill stroke and adjust automatically successively down, and physical location is conformed to the data of memory stores.
Special programmable electric governing system fordrypowder press of the present invention and control mode thereof, reasonable in design simple in structure, whole procedure formula electric operation dispatching system all is arranged at machine intimate, and layout is ingenious, reasonable, makes like this that the appearance of press is clean and tidy, attractive in appearance.The program mode electric operation dispatching system has two main functions: the one, adjust function, promptly replace manual setting with electronic adjustment, it can alleviate operator's labour intensity, the 2nd, governor motion is carried out sequencing, it can be stored in the adjusting parameter of each stampings in the press, when suppressing this part at every turn, only need in press, to access its parameter and get final product.Electric operation dispatching system of the present invention is pressed execution after only needing configure numerical value by touch-screen, and press can put in place in auto-feed, and precision height, speed are fast.Automation be can realize by dedicated program formula electric operation dispatching system, efficient and precision that the dry powder press molding parameter is adjusted improved.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 dry powder press compaction curve schematic diagram.
Fig. 2 special programmable electric governing system fordrypowder press electricity regulating mechanism schematic diagram.
The electricity regulation and control system systematic schematic diagram of Fig. 3 special programmable electric governing system fordrypowder press.
The electric operation dispatching system Automatic Control flow chart 1 of Fig. 4 special programmable electric governing system fordrypowder press.
The electric operation dispatching system Automatic Control flow chart 2 of Fig. 5 special programmable electric governing system fordrypowder press.
The electric operation dispatching system touch-screen control picture one of Fig. 6 special programmable electric governing system fordrypowder press.
The electric operation dispatching system touch-screen control picture two of Fig. 7 special programmable electric governing system fordrypowder press.
The electric operation dispatching system touch-screen control picture three of Fig. 8 special programmable electric governing system fordrypowder press.
The electric operation dispatching system touch-screen control picture four of Fig. 9 special programmable electric governing system fordrypowder press.
In the accompanying drawing 21, reducing motor, 2, power transmission shaft, 3, driving gear pair, 4, turning handle, 5, near switch, 6, universal drive festival, 7, mounting screw, 8, installing plate, 9, support, 10, rotary encoder, 11, the encoder gear.
M1 in the accompanying drawing 3---upper punch is adjusted reducing motor, M2---and roof pressure is adjusted reducing motor
M3---reducing motor is adjusted in compacting, M4---and filler is adjusted reducing motor
M5---next reconstitutes whole reducing motor, M6---following two punch is adjusted reducing motor
The specific embodiment
With reference to accompanying drawing 1～9, special programmable electric governing system fordrypowder press comprises frequency converter, reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear, PLC Programmable Logic Controller (hereinafter to be referred as PLC), touch-screen, near switch, motor contactor.Frequency converter, PLC Programmable Logic Controller, motor contactor are installed in electric control box inside; Touch-screen is installed on the panel of electric control box; Reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear etc. are installed in dry powder press lathe bed one side, are installed in dry powder press lathe bed inside near switch.
The motion of special programmable electric governing system fordrypowder press is controlled synchronic command by rotary encoder, and PLC is able to programme to carry out programme-control.By the parameter of setting, each governor motion is suppressed after being adjusted to assigned address.Product is through measuring, as qualified then ordinary production.Then can finely tune as defective, till qualified, newer data are stored in the PLC Programmable Logic Controller, so that directly call next time to corresponding adjustment stroke.
The pressing principle of mechanical type full-automatic dry powder press can be used the compaction curve graph expression; see accompanying drawing 1; the movement locus of upper punch, die, Xia Chong, feed mechanism be can show among the figure, can correspondence three compactings of two-way non-while and the prestrain and the protection demoulding be demonstrated simultaneously.The movement locus of its upper punch is an approximate sine curve.
With reference to accompanying drawing 2, the electric regulating mechanism of special programmable electric governing system fordrypowder press comprises reducing motor 1, power transmission shaft 2, driving gear pair 3, turning handle 4, near switch 5, universal drive festival 6, mounting screw 7, installing plate 8, support 9, rotary encoder 10, encoder gear 11.Installing plate 8 is contained in dry powder press lathe bed one side.Reducing motor 1 is fixed on the installing plate 8 by mounting screw 7, power transmission shaft 2 is contained on the mounting bracket 9, and mounting bracket 9 is installed on the installing plate 8, and universal drive festival 6 links to each other with power transmission shaft 2, power transmission shaft 2 is used for electronic adjustment by universal drive festival 6 output driving torques.Driving gear pair 3 is housed on the power transmission shaft 2 to be meshed with encoder gear 11.Be contained in dry powder press lathe bed one side on the turning handle 4, on the turning handle 4 travelling gear be housed, be meshed with driving gear pair 3.
The power of special programmable electric governing system fordrypowder press electricity regulating mechanism by reducing motor 1 through power transmission shaft to 2, universal drive festival 6 is to any direction output driving torque (Electric Drive); Can pass through turning handle 4 and drive driving cog spokes 3 output driving torques (manually), this moment, brake was in releasing orientation, with signal back PLC, was controlled the folding of the brake of motor near switch 5 by PLC; Encoder gear 11 with driving gear pair 3 speed ratios with convert to rotary encoder 10 behind the integral multiple (so that data transaction), 10 rotations of driven rotary encoder, thus transmission information is passed to PLC.Reducing motor 1 has braking mechanism, by 1: 30～1: 60 speed reducing ratio speed is become 24～48 rev/mins, this speed is about the beat that staff shakes, and power output output can be amplified by decelerator in addition, and the power of motor is only got final product for 0.1-0.2kW.Brake mainly is to prevent the inertia surpassed distance, makes accurate positioning, also can prevent in addition from slipping.Rotary encoder 10 is installed in reducing motor 1 one sides, synchronous with reducing motor 1, reducing motor is provided with some, every reducing motor one end all is equipped with a rotary encoder, rotary encoder links to each other with PLC by shielding line, the stroke of each regulating shaft is sent to PLC with A/B phase pulse mode with signal, carry out internal arithmetic by PLC.
With reference to accompanying drawing 3, power supply links to each other with frequency converter, frequency converter links to each other with corresponding reducing motor by the motor contactor, PLC links to each other with the motor contactor, the dead electricity that gets by holding wire control motor contactor coil, PLC also links to each other with the signal end of frequency converter simultaneously, the operation of control frequency converter, being installed in the rotary encoder of reducing motor one side and the bound of corresponding stroke links to each other with PLC near the auxiliary contact of switch by the motor contactor, rotary encoder sends to PLC with A/B phase pulse mode with signal with the stroke of each regulating shaft, and touch-screen links to each other with PLC by special-purpose communication cable.
Specific implementation method, the touch-screen of 4,5 system's Automatic Control flow charts and accompanying drawing 6～9 electric operation dispatching systems control picture figure in conjunction with the accompanying drawings.The master control of electricity regulation and control system system is finished by PLC, and operation is mainly finished by touch-screen.A complete set of system divides manual control, semiautomatic control and Automatic Control (prescription) three kinds of functions.
A) manually control.Parameter unit is mm on the touch-screen.
1), select " electricity is transferred and selected " picture, need to select the reducing motor stroke adjusted as required, be adjusted into example with upper punch, select " upper punch adjustment " picture.Upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC inside.
2), the travel position of upper punch reality is presented on the touch-screen selection manual control button.
3), at a high speed and low speed select, in the time of need carrying out coarse adjustment, select at a high speed, electricity is transferred the frequency converter high-speed cruising, general 50HZ; In the time of need finely tuning, select low speed, the frequency converter low cruise, general 10HZ, accuracy generally can reach 0.01mm.
4), adjust.By " liter " button, then corresponding reducing motor just changes, and stroke increases; By " falling " button, then corresponding reducing motor counter-rotating, stroke reduces.Unclamp the corresponding button, then reducing motor stops at once.
5), when corresponding adjustment stroke is in upper limit position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation.The upper and lower limit indicator lamp is bright on the touch-screen simultaneously.
B) semiautomatic control.Parameter unit is mm on the touch-screen.
1), select " electricity is transferred and selected " picture, need to select the reducing motor stroke adjusted as required, be adjusted into example with upper punch, select " upper punch adjustment " picture.Upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC inside.
2), the travel position of upper punch reality is presented on the touch-screen, selects automatic control button.Automatically select the frequency converter high-speed cruising when controlling automatically.
3), increment is set: import the displacement that will adjust, in adjusting automatically, this value can reduce gradually with the reducing motor running, and until being 0, reducing motor is out of service.
4), adjust.Click " liter " button, then frequency converter drives corresponding reducing motor just changes, stroke increases a setting value (this setting value is provided with) in " increment setting ", high-speed cruising during beginning, when treating near target location 0.1mm～1.0mm, PLC control inverter converts is a low cruise, guarantee to put in place accurately; Click " falling " button, then corresponding reducing motor counter-rotating, stroke reduces a setting value (this setting value is provided with) in " increment setting ", equally, high-speed cruising during beginning is when treating near target location 0.1mm～1.0mm, PLC control inverter converts is a low cruise, guarantee to put in place accurately.By " time-out " button, then adjust automatically to suspend and carry out.
5), when corresponding adjustment stroke is in the lower position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation.The upper and lower limit indicator lamp is bright on the touch-screen simultaneously.
6), non-adjustable scope on the touch-screen.Can not carry out electricity and transfer in this scope, this is the safeguard protection setting, in the dust cycle of press; the adjusting of some phase place be in interlocking state as: when being in the filler position; the adjusting of packed height can't be carried out, and when entering demoulding position, then can carry out.The roof pressure stroke then can only be when the filler position can, otherwise can decrease outer components and parts, and cause motor overload to damage, produce unpredictable consequence.This parameter is provided with according to adjusting the object difference, and the scope of setting is 0 °～360 °.
C) Automatic Control (prescription function).Can store 60 groups of data altogether, be respectively " memory 1～60 ", be example with memory 1 below, and other storage operation control mode is all identical with memory 1:
1), data storage.With a kind of upper punch of product, filler, compacting, roof pressure, after next dashes, the travel parameters of following two punch adjusts, its related data is stored in memory 1 register, also can import production code member simultaneously.Method is:
In the input domain on " electricity is transferred and selected " picture, input digit 1 (being selection memory 1), and then select corresponding stroke picture, as " upper punch adjustment " picture, select " affirmation writes " button, then the currency of upper punch stroke has been kept in the memory 1.Preserve dress powder height, compacting, roof pressure successively, next dashes, the currency of the stroke of following two punch.After having stored, at " memory 1 " picture input production code member.
2), call the data of storage.When changing product, if during original existing storage data, only need call related data after, finely tune accordingly again and get final product.Method is:
On " electricity is transferred and selected " picture, select " automatically " picture, select by " memory 1 ", then each run-length data of original storage is presented on the touch-screen, press the Auto button, then upper punch, filler, compacting, roof pressure, next dashes, two fill stroke and adjust automatically successively down, and physical location is conformed to the data of memory stores.
The realization programme-control of Automatic Control (prescription) is referring to the flow chart of accompanying drawing 4.At first select to adjust automatically or manually adjust,, then on touch-screen, can directly carry out manual operation, chat on concrete operations are seen it if manually adjust.If select to adjust automatically, want earlier selection memory number (the corresponding a kind of memory of a kind of product), for example selection memory 1, press ACK button on the touch-screen, then carry out the operation that upper punch is adjusted automatically, carry out in two steps, judge that the upper punch adjustment is whether in adjustable extent, in this way, then program calculates the difference of target location and physical location automatically, and the control frequency converter starts, elder generation's high-speed cruising, during near desired value 0.1mm～1.0mm, the frequency converter low cruise puts in place until stroke; As not, then jump out automatic adjustment picture, need operate this moment to press, make it in adjustable extent after, adjust operation more again automatically.After the upper punch stroke puts in place, again with same method successively to filler stroke, roof pressure stroke, pressing stroke, next adjusts towards stroke, following two punch stroke, till each stroke adjustment all puts in place.The operation press detects the product that suppresses, and as qualified, then can ordinary production move; As defective, then need corresponding travel parameters is carried out manual fine-tuning, until qualified, the travel parameters that will newly revise is chatted mode before again and is stored again.
Electric operation dispatching system electricity timing of the present invention has also kept the adjusting of hand rotation handle, in the time of carrying out the turning handle adjusting, only need switch to corresponding electricity and transfer the object picture on touch-screen, the physical location of automatic demonstration and memory controlled plant on the picture.
The technical characterstic of special programmable electric governing system fordrypowder press and control mode thereof:
1) whole procedure formula electric operation dispatching system all is arranged at machine intimate, and layout is ingenious, reasonable, makes like this that the appearance of press is clean and tidy, attractive in appearance.Referring to accompanying drawing 1.
2) program and the amount of feeding are to be set by touch-screen, and by the start and stop of PLC control reducing motor, in service automatically, the control frequency converter is selected the reducing motor speed of service, first high-speed cruising, and low cruise again during near the target location reaches accurate location.Per 360 degree of the resolving accuracy of each regulating shaft rotary encoder are the 500-600 line, can reach 0.01mm so set the single hop amount of feeding.In any case so high precision is also inaccessible when manual.
1. the location is smart grade
With laser interferometer the positioning accuracy of each regulating shaft is measured.The straight line resolving accuracy of laser interferometer is 0.001mm, and the circumference resolving accuracy is 1/000 degree.
On total travel, each regulating shaft is placed dead-center position, laser interferometer clear " 0 ".Resolving accuracy is made as 0.01mm.
Following table is the detection data of partial journey.
The packed height stroke:
| Segment number | The feeding setting value | Measured data |
| ?N0 | 0 | 0 |
| ?N1 | +10.03 | +10.03 |
| ?N2 | +20.15 | +20.14 |
| ?N3 | +30.1 | +30.09 |
| ?N4 | +40.07 | +40.07 |
| ?N5 | +50.21 | +50.22 |
| ?N6 | +60.35 | +60.36 |
| ?N7 | +70.01 | +70 |
| ?N8 | +80 | +79.99 |
| ?N9 | +90.04 | +90.03 |
| ?N10 | +100.05 | +100.04 |
Can be drawn by above-mentioned data, the error of positioning accuracy is in 0～0.01mm scope.
2. repetitive positioning accuracy
The repetitive positioning accuracy of lathe all is not more than in 0.01mm on total travel.
3) accuracy of manufacture of part
The accuracy of manufacture of electric operation dispatching system machined part is different from manual adjustment element precision, mainly is based on to reduce the influence of transmission chain error to degree of regulation to greatest extent.Machining accuracy is brought up to 6～7 grades by 8 grades.The accuracy class of trapezoidal thread is brought up to 5 grades by 6 grades.
4) mode transfer efficient
Packed height will be adjusted often in compacting, and all strokes all will reset after changing product.If use manual adjustments, not only effort, and the precision also not high (only according to counter) of regulating needs pressure testing repeatedly many times just can reach requirement.
And after electric operation dispatching system only needs configure numerical value by touch-screen, press execution, and machine can put in place in auto-feed, and precision height, speed are fast.After changing product, only need access the compacting parameter of this product from machine and carry out, each stroke shaft can reach assigned address.Effect will improve 3～4 times, and has reduced the pressure testing part.Not only save man-hour, also saved material.The such high value material of carbide alloy particularly.
Claims (7)
1, a kind of special programmable electric governing system fordrypowder press, it is characterized in that this system comprise frequency converter, reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear, PLC Programmable Logic Controller, touch-screen, near switch, motor contactor; Frequency converter, PLC Programmable Logic Controller, motor contactor are installed in electric control box inside; Touch-screen is installed on the panel of electric control box; Reducing motor, rotary encoder, power transmission shaft, driving gear pair, turning handle, universal drive festival, encoder gear are installed in dry powder press lathe bed one side, are installed in dry powder press lathe bed inside near switch; Power supply links to each other with frequency converter, frequency converter links to each other with corresponding reducing motor by the motor contactor, the PLC Programmable Logic Controller links to each other with the motor contactor, control the dead electricity that gets of motor contactor coil, the PLC Programmable Logic Controller also links to each other with the signal end of frequency converter simultaneously, the operation of control frequency converter, being installed in the rotary encoder of motor one side and the bound of corresponding stroke links to each other with the PLC Programmable Logic Controller near the auxiliary contact of switch by the motor contactor, rotary encoder sends to PLC Programmable Logic Controller with A/B phase pulse mode with signal with the stroke of each reducing motor regulating shaft, carry out internal arithmetic by the PLC Programmable Logic Controller, touch-screen links to each other with the PLC Programmable Logic Controller by special-purpose communication cable.
2, special programmable electric governing system fordrypowder press according to claim 1, the electric regulating mechanism that it is characterized in that the program mode electric operation dispatching system comprise reducing motor, power transmission shaft, driving gear pair, turning handle, near switch, universal drive festival, mounting screw, installing plate, support, rotary encoder, encoder gear; Installing plate is contained in dry powder press lathe bed one side, reducing motor is fixed on the installing plate by mounting screw, drive shaft cartridge is on mounting bracket, installation is propped up and is installed on the installing plate, and universal drive festival links to each other with power transmission shaft, and power transmission shaft is exported driving torque by universal drive festival, driving gear pair is housed on the power transmission shaft to be meshed with the encoder gear, be contained in dry powder press lathe bed one side on the turning handle, travelling gear is housed on the turning handle, be meshed with driving gear pair.
3, special programmable electric governing system fordrypowder press according to claim 1, it is characterized in that rotary encoder is installed in reducing motor one side, synchronous with reducing motor, reducing motor is provided with some, and every reducing motor one end all is equipped with a rotary encoder.
4, the control mode of the described special programmable electric governing system fordrypowder press of claim 1, the governor motion parameter that it is characterized in that dry powder press comprises the adjustment of upper punch stroke, the adjustment of roof pressure stroke, the adjustment of filler stroke, pressing stroke adjustment, next adjusts parameter towards stroke adjustment, following two punch stroke, optional according to different some parameter of press model, the adjustment of each parameter all is furnished with a reducing motor; The control of whole procedure formula electric operation dispatching system comprises that motor drags and the sequential control two large divisions, it is to adjusting the control of motor that motor drags, adjusting motor is the reducing motor that has brake, drive some reducing motors in turn by a frequency converter, sequential control is meant by touch-screen and operates, handle by the PLC Programmable Logic Controller, control the adhesive and the disconnection of each motor contactor, thus the start and stop of control motor;
Select the operation that to adjust by touch-screen, touch-screen sends to the PLC Programmable Logic Controller by special-purpose communication cable with information, handle by the PLC Programmable Logic Controller, the PLC Programmable Logic Controller disconnects according to the adhesive of the signal control motor contactor that receives, once has only the adhesive of a motor contactor, in case motor contactor adhesive, the corresponding reducing motor of this motor contactor control and frequency converter are connected so, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and with signal back PLC Programmable Logic Controller inside, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch, in case a certain reducing motor gets, just can carry out parameter adjustment by touch-screen, method is: the PLC Programmable Logic Controller sends order to frequency converter, the start and stop and the speed of service by this reducing motor of Frequency Converter Control, this rotary encoder sends the pulse of A/B phase to the PLC Programmable Logic Controller, PLC Programmable Logic Controller inner high speed counting is to the step-by-step counting of A/B phase, draw the traveled distance of adjustment through computing, and data are stored in the PLC Programmable Logic Controller register remember, so that next energising can be remembered traveled distance; The extreme position of adjustment stroke adopts soft spacing and hard limited double-insurance control, the soft spacing dual mode that has: near switch and the control of PLC Programmable Logic Controller internal processes; When adjusting stroke is zero or lower limit during near inductive switching, can not adjust downwards again, when stroke maximum or the upper limit during near inductive switching, can not adjust upward equally again; Adopt hard spacing control simultaneously, realize, guarantee that each adjustment stroke is unlikely to come off by electromechanical stop.
5, the control mode of special programmable electric governing system fordrypowder press according to claim 4 is characterized in that the program mode electric operation dispatching system divides manual control, semiautomatic control and three kinds of modes of Automatic Control, and operation is mainly finished by touch-screen:
A) manually control:
1), select " electricity is transferred and selected " picture, need to select the reducing motor stroke adjusted as required, be adjusted into example with upper punch, select " upper punch adjustment " picture.Upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC Programmable Logic Controller inside;
2), the travel position of upper punch reality is presented on the touch-screen selection manual control button;
3), at a high speed and low speed select, in the time of need carrying out coarse adjustment, select at a high speed, electricity is transferred the frequency converter high-speed cruising, general 50HZ; In the time of need finely tuning, select low speed, the frequency converter low cruise, general 10HZ, accuracy generally can reach 0.01mm;
4), adjust: by " liter " button, then corresponding reducing motor just changes, and stroke increases; By " falling " button, then corresponding reducing motor counter-rotating, stroke reduces, and unclamps the corresponding button, and then reducing motor stops at once;
5), when corresponding adjustment stroke is in upper limit position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation, the upper and lower limit indicator lamp is bright on the touch-screen simultaneously;
B) semiautomatic control:
1), selects " electricity is transferred and selected " picture, need to select the reducing motor stroke of adjustment as required, be adjusted into example with upper punch, select " upper punch adjustment " picture, upper punch is adjusted the adhesive of motor contactor, reducing motor and frequency converter are connected, corresponding reducing motor braking mechanism and rotary encoder, switch on simultaneously near switch, and, other some reducing motors and corresponding braking mechanism, rotary encoder, be in the dead electricity disarmed state near switch with signal back PLC Programmable Logic Controller inside;
2), the travel position of upper punch reality is presented on the touch-screen, selects automatic control button.Automatically select the frequency converter high-speed cruising when controlling automatically;
3), increment is set: import the displacement that will adjust, in adjusting automatically, this value can reduce gradually with the reducing motor running, and until being 0, reducing motor is out of service;
4), adjust: adjust on ascending, descending button and the guidance panel version rise, that push button function falls in adjustment is identical, click " liter " button, then frequency converter drives corresponding reducing motor just changes, stroke increases a setting value, the setting in " increment settings " of this setting value, high-speed cruising during beginning is when treating near target location 0.1mm～1.0mm, PLC Controlled by Programmable Controller inverter converts is a low cruise, guarantee to put in place accurately; By " falling " button, then corresponding reducing motor counter-rotating, stroke reduces a setting value, this setting value is provided with in " increment setting ", equally, high-speed cruising during beginning is when treating near target location 0.1mm～1.0mm, PLC Controlled by Programmable Controller inverter converts is a low cruise, guarantee to put in place accurately.By " time-out " button, then adjust automatically to suspend and carry out;
5), when corresponding adjustment stroke is in upper limit position, can not carries out stroke again and reduce operation; When corresponding adjustment stroke is in upper limit position, can not carries out stroke again and increase operation, the upper and lower limit indicator lamp is bright on the touch-screen simultaneously;
6), non-adjustable scope on the touch-screen; can not carry out electricity in this scope transfers; this is the safeguard protection setting; in the dust cycle of press; the adjusting of some phase place has been in interlocking state, as: when being in the filler position, the adjusting of packed height can't be carried out; and when entering demoulding position, then can carry out.The roof pressure stroke then can only be when the filler position can, otherwise can decrease outer components and parts, and cause motor overload to damage, produce unpredictable consequence, this parameter is provided with according to adjusting the object difference, the scope of setting is 0 °～360 °;
C) Automatic Control can be stored 60 groups of data altogether, is respectively " memory 1～60 ", is example with memory 1 below, and other memory control operation mode is identical with memory 1:
1), data storage: with a kind of upper punch of product, dress powder height, compacting, roof pressure, after next dashes, the travel parameters of following two punch adjusts, its related data is stored in memory 1 register, also can imports production code member simultaneously, method is:
In the input domain on " electricity is transferred and selected " picture, input digit 1, it is selection memory 1, and then select corresponding stroke picture, as " upper punch adjustment " picture, select " affirmation writes " button, then the currency of upper punch stroke has been kept in the memory 1, preserve dress powder height, compacting, roof pressure successively, next dashes, the currency of the stroke of following two punch, after store, imports production code member at " memory 1 " picture;
2), call the data of storage: when changing product, if during original existing storage data, only need call related data after, finely tune accordingly again and get final product, method is:
On " electricity is transferred and selected " picture, select " automatically " picture, select by " memory 1 ", then each run-length data of original storage is presented on the touch-screen, press the Auto button, then upper punch, filler, compacting, roof pressure, next dashes, two fill stroke and adjust automatically successively down, and physical location is conformed to the data of memory stores.
6, the control mode of the described special programmable electric governing system fordrypowder press of claim 4 is characterized in that at first selecting to adjust automatically or manually adjust on touch-screen, if manually adjust, then can directly carry out manual operation to it on touch-screen; If select to adjust automatically, want earlier selection memory number, a kind of memory of a kind of product correspondence, for example selection memory 1, presses ACK button on the touch-screen, then carries out the operation that upper punch is adjusted automatically, carry out in two steps, judge that the upper punch adjustment is whether in adjustable extent, in this way, then program calculates the difference of target location and physical location automatically, the control frequency converter starts, and first high-speed cruising is during near desired value 0.1mm～1.0mm, the frequency converter low cruise puts in place until stroke; As not, then jump out automatic adjustment picture, need operate this moment to press, make it in adjustable extent after, adjust operation more again automatically; After the upper punch stroke puts in place, again with same method successively to filler stroke, roof pressure stroke, pressing stroke, next adjusts towards stroke, following two punch stroke, till each stroke adjustment all puts in place; The operation press detects the product that suppresses, and as qualified, then can ordinary production move; As defective, then need corresponding travel parameters is carried out manual fine-tuning, until qualified, the travel parameters that will newly revise is chatted mode before again and is stored again.
7, according to the control mode of claim 4 or 6 described special programmable electric governing system fordrypowder press, it is characterized in that electric timing has also kept the hand rotation handle and regulated, when carrying out the turning handle adjusting, only need on touch-screen, switch to corresponding electricity and transfer the object picture, the physical location of automatic demonstration and memory controlled plant on the picture.
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| CNB2006100967693A CN100415502C (en) | 2006-10-16 | 2006-10-16 | Special programmable electric governing system fordrypowder press and its control mode |
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| CNB2006100967693A CN100415502C (en) | 2006-10-16 | 2006-10-16 | Special programmable electric governing system fordrypowder press and its control mode |
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| CN101863139A (en) * | 2010-06-07 | 2010-10-20 | 佛山市新信德节能环保投资管理有限公司 | Energy-saving control device for punch presses |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160211Y (en) * | 1993-01-31 | 1994-04-06 | 江苏溧阳正昌粮油饲料机械总公司 | Automatic control cabinet for particules pressing machine |
| US5483874A (en) * | 1994-03-18 | 1996-01-16 | Janome Sewing Machine Co., Ltd. | Electropressing apparatus with computer programmable control |
| JP4093379B2 (en) * | 1996-05-21 | 2008-06-04 | 蛇の目ミシン工業株式会社 | Electric press |
| CN2269295Y (en) * | 1996-11-26 | 1997-12-03 | 许云灿 | Electric control box for full automatic dry powder press |
| CN2289670Y (en) * | 1997-02-26 | 1998-09-02 | 许云灿 | Frequency-changer stepless speed regulating mechanism for automatic dry powder press |
| DE19919693C2 (en) * | 1999-04-30 | 2001-08-23 | Fette Wilhelm Gmbh | Method for determining the position of a ram of a powder press |
| JP2002219600A (en) * | 2001-01-25 | 2002-08-06 | Tamagawa Machinery Co Ltd | Computer numerical control press device |
| CN2468711Y (en) * | 2001-03-06 | 2002-01-02 | 常州市华立液压润滑设备有限公司 | Multiple ram, variable frequency and rotating type powder shape-forming machine |
| CN1322966C (en) * | 2004-07-22 | 2007-06-27 | 辽宁中田干燥设备制造有限公司 | Digital control device of flyash brick shaping equipment |
| CN2820519Y (en) * | 2005-09-22 | 2006-09-27 | 陈锐 | Hydraulic dry powder forming machine |
-
2006
- 2006-10-16 CN CNB2006100967693A patent/CN100415502C/en not_active Expired - Fee Related
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| CN101367174B (en) * | 2008-09-05 | 2010-06-09 | 济南二机床集团有限公司 | Table stroke control apparatus and control method |
| CN101863139A (en) * | 2010-06-07 | 2010-10-20 | 佛山市新信德节能环保投资管理有限公司 | Energy-saving control device for punch presses |
| CN102672987A (en) * | 2011-03-17 | 2012-09-19 | 协易机械工业股份有限公司 | Crankshaft type punch with double protection mechanisms and control method |
| CN102672987B (en) * | 2011-03-17 | 2015-01-07 | 协易机械工业股份有限公司 | Crankshaft type punch with double protection mechanisms and control method |
| CN102514872A (en) * | 2012-01-06 | 2012-06-27 | 布勒(常州)机械有限公司 | Automatic material storing and taking locator |
| CN108146013A (en) * | 2017-12-31 | 2018-06-12 | 扬州市海力精密机械制造有限公司 | A kind of automatically controlled digital adjusting apparatus of upper punch of ultra-large type powder press |
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Effective date of registration: 20090320 Address after: No. 79, Liyuan South Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: Nanjing East Precision Machinery Co., Ltd. Address before: No. 79, Liyuan South Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: Xu Yang |
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