CN203689091U - Open mill closed loop electric distance adjusting control and active safety protection device - Google Patents
Open mill closed loop electric distance adjusting control and active safety protection device Download PDFInfo
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- CN203689091U CN203689091U CN201420055802.8U CN201420055802U CN203689091U CN 203689091 U CN203689091 U CN 203689091U CN 201420055802 U CN201420055802 U CN 201420055802U CN 203689091 U CN203689091 U CN 203689091U
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- 230000001105 regulatory effect Effects 0.000 claims description 26
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- 230000009183 running Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 15
- 230000009471 action Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/724—Measuring, controlling or regulating for continuous roller mixers, e.g. calenders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The utility model relates to an open mill closed loop electric distance adjusting control and active safety protection device. The device comprises three drivers equipped with motion control cards, wherein, the first driver and the second driver are respectively connected with the first distance adjusting motor and a second distance adjusting motor. The first distance adjusting motor and a second distance adjusting motor are connected with a worm wheel and worm drive mechanism of a distance adjusting roller respectively. The third driver is connected with a main motor of an open mill. The main motor of the open mill is connected with a gear drive mechanism for driving the distance adjusting roller and a fixed roller to operate. The device employs three motion control cards as a core to complete read-in, calculation, processing and control output of data. The motion control cards achieve data exchange through industrial on-site bus. An HMI human-computer interface device achieves data exchange with the motion control cards through an Ethernet communication mode, and achieves data exchange with a PLC controller of the open mill through an industrial on-site bus communication mode. The device can lower overload fault rate greatly, raises the production efficiency and ensures the production technology.
Description
Technical field
The utility model belongs to rubber manufacturing machine control technology field, is specifically related to a kind of mill closed loop motorized nip adjustment control and active safety protective device.
Background technology
At present, mill roll adjustment control technology is mainly to adopt hydraulic distance-regulating control and the control of common alternating current generator open loop roll adjustment.Hydraulic distance-regulating control system is to realize the control of the roll gap size to mill distance regulating roller by control ratio flowrate control valve.But the cost compare of hydraulic distance-regulating control and safety system is high, and support equipment takes up room larger, and the greasy dirt of hydraulic distance-regulating control system affects the quality of rubber.The control of common alternating current generator open loop roll adjustment is the open loop control that realizes the roll gap size to mill distance regulating roller by common alternating current generator, but the roll gap while can not proof load variation is stable, variation roll gap fluctuation with load when mill work is larger, can not ensure the production technology of mill.Current mill safety guard is based on load a kind of passive protection in when overload being detected, in the time of hydraulic distance-regulating control, in the time that load transship, by hydraulic means, distance regulating roller is opened to the protection of realization to mill machinery; The control of common alternating current generator open loop roll adjustment is to realize the protection to mill machinery by the fragmentation of surely carrying metal safeguard protection sheet in the time of overload.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of mill closed loop motorized nip adjustment control and active safety protective device are provided, thereby reduces the generation of overload fault, shortens the release time of overload fault.
The technical solution of the utility model is as follows: a kind of mill closed loop motorized nip adjustment control and active safety protective device, comprise three drivers of being furnished with motion control card, the motion control card that three described drivers configure is interconnected with one another by industrial field bus communication module, and be connected with HMI human interface devices respectively by ethernet communication module, described HMI human interface devices is connected with mill PLC controller by industrial field bus communication module; The first driver in three described drivers is connected with the second distance-adjusting motor with the first distance-adjusting motor respectively with the second driver, and the first distance-adjusting motor is connected with the Worm and worm-wheel gearing of mill distance regulating roller both sides respectively with the second distance-adjusting motor; The 3rd driver is connected with the main motor of mill, and the main motor of mill is connected with the gear drive of stationary roll running with the distance regulating roller for driving mill.
Further; mill closed loop motorized nip adjustment control as above and active safety protective device; wherein, on described the first distance-adjusting motor, the second distance-adjusting motor, the main motor of mill, be respectively equipped with rotary encoder, the driver that each rotary encoder is corresponding with place motor is connected.
Further; mill closed loop motorized nip adjustment control as above and active safety protective device; wherein; roll gap two ends between described distance regulating roller and stationary roll are respectively equipped with the displacement transducer for measuring roll gap size, and two displacement transducers are connected with the first driver and the second driver respectively.
Further; mill closed loop motorized nip adjustment control as above and active safety protective device; wherein, be respectively equipped with the pressure transducer for measuring distance regulating roller pressure at described distance regulating roller two ends, two pressure transducers are connected with the first driver and the second driver respectively.
The beneficial effects of the utility model are as follows: cost compare that mill closed loop motorized nip adjustment of the present utility model control has overcome hydraulic distance-regulating control is high, detection signal is single, support equipment takes up room greatly, hydraulic distance-regulating control system exists oil pollution and affect the problem such as rubber product quality of mill, and roll gap when having overcome the control of common alternating current generator open loop roll adjustment and can not proof load changing is stable and can not ensure the problem such as production technology of mill; The passive mode of overload protection when multiple formula active safety protective device has overcome hydraulic distance-regulating control and common alternating current generator open loop roll adjustment control; propose first to include the work information of roller drive motor in active safety protection; the active safety information judgement of multiple formula, active accommodation operating mode are eliminated after overload trend, overload protection the functions such as recovery automatically, greatly reduced overload fault generation, reduced overload fault release time, improved production efficiency, ensured production technology.
Brief description of the drawings
Fig. 1 is the system composition structural representation of the motorized nip adjustment control of the utility model mill closed loop and active safety protective device.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Mill closed loop motorized nip adjustment control provided by the utility model and active safety protective device mainly comprise following hardware composition:
Is furnished with the driver of motion control card, ethernet communication card and bus communication card for three;
HMI human interface devices and guidance panel conveniently carry out data setting, amendment and demonstration;
The roll adjustment gear train of two power servomotors, turbine, scroll bar and leading screw compositions;
Two pressure transducers are measured the suffered pressure in distance regulating roller two ends;
Two ends roll gap between two displacement sensor distance regulating rollers and stationary roll;
Three rotary encoders are measured the rotating speed of roller main drive motor and two roll adjustment power servomotors;
The D.C. regulated power supply that external sensor uses;
The switch that ethernet communication uses;
Control box.
As shown in Figure 1, the motion control card 4,5,6 that three drivers 1,2,3 configure is interconnected with one another by industrial field bus communication module, carry out data transmission through industrial field bus address card 8, and be connected with HMI human interface devices 9 respectively by ethernet communication card 7, described HMI human interface devices 9 is connected with mill PLC controller 10 by industrial field bus communication module.The first driver 1 in three described drivers is connected with the second distance-adjusting motor 12 with the first distance-adjusting motor 11 respectively with the second driver 2, and the first distance-adjusting motor 11 is connected with the Worm and worm- wheel gearing 13,14 of mill distance regulating roller 17 both sides respectively with the second distance-adjusting motor 12; The 3rd driver 3 is connected with the main motor 15 of mill, and the main motor 15 of mill is connected with the gear drive 16 that the distance regulating roller 17 for driving mill turns round with stationary roll 18.On the first distance-adjusting motor 11, the second distance-adjusting motor 12, the main motor 15 of mill, be respectively equipped with rotary encoder, the driver that each rotary encoder is corresponding with place motor is connected, and the motor speed signal that each rotary encoder is detected feeds back to each driver.20, two displacement transducers 20 of displacement transducer that roll gap two ends between described distance regulating roller 17 and stationary roll 18 are respectively equipped with for measuring roll gap size are connected with the first driver 1 and the second driver 2 respectively; 19, two pressure transducers 19 of pressure transducer that are respectively equipped with at described distance regulating roller 17 two ends for measuring distance regulating roller pressure are connected with the first driver 1 and the second driver 2 respectively.
What this example provided is applied to mill motorized nip adjustment and active safety protective device, and the function of its chief component is as follows:
Control respectively the servo distance-adjusting motor 11,12 of corresponding power by driving side and two drivers of fore side 1,2, the rotary encoder that motor carries detects that rate signal feeds back to driver 1,2 by encoder interfaces and forms closed loop, make distance-adjusting motor according to motion control card 4,5 setting speed runnings by closed loop vector control mode, distance-adjusting motor 11,12 is connected with distance regulating roller 17 by Worm and worm-wheel gearing 13,14.Pressure transducer 19 and displacement transducer 20 are linked into driver 1,2 by the input port of analog quantity, are convenient to detect in real time the roll gap between pressure and distance regulating roller 17 and the stationary roll 18 of distance regulating roller 17.Between two motion control cards 4,5, carry out exchanges data by RS485 communications protocol, to ensure the synchronism between distance-adjusting motor 11,12.The motion control card 6 of mill PLC controller 10, driver 3 and the main motor 15 of control mill is connected in industrial field bus mode, carries out exchanges data.The Ethernet that the ethernet communication module of HMI human interface devices 9, engineer station or administration and supervision authorities network and driver is set up by switch carries out exchanges data, to data and program are modified, monitored.The driver of the main motor 15 of mill records motor speed through rotary encoder, drives the main motor 15 of mill by closed loop control mode, drives distance regulating roller 17 and stationary roll 18 to turn round through gear drive 16.
The motorized nip adjustment control of mill closed loop and active safety protective device; as completing data, core reads in, calculates, processes and control output taking three motion control cards; between motion control card, realize exchanges data by industrial field bus; HMI human interface devices realizes exchanges data by ethernet communication mode and motion control card, realizes exchanges data by industrial field bus communication modes and mill PLC controller.Input interface comprises the analog input interface of rotary encoder interface, detected pressures and the roll gap of digital-quantity input interface, the detection speed signal of the action button signal of mill motorized nip adjustment; Output interface is the startup stop control signal of power servomotor blower fan.HMI man-machine interface comprises multiple pictures such as monitored picture, setting parameter, analog quantity dynamic trend picture and alarm logging interface.
Mill PLC controller is written to the gap values between rollers of technique initialization in motion control card by industrial field bus communication modes, in electronic roll gap roll adjustment control program, adopt approach at a high speed, the position closed loop control method of low speed location, dead band anti-interference (within the scope of the site error allowing time do not do position adjustments action), make distance-adjusting motor within the roll gap deviation range of setting keep static, thereby reduced the wearing and tearing between gear train.For example: in the time that the phase difference of setting gap values between rollers and actual gap values between rollers is more than 1 millimeter, electronic roll gap roll adjustment approaches with the top speed allowing; Phase difference is in 1 millimeter time, and electronic roll gap roll adjustment 1/3rd speed at full throttle positions control; And phase difference is in the Roll-gap position deviation range allowing time, it is static that electronic roll gap roll adjustment keeps.
Can realize single-action linkage and automatic three kinds of working methods by action button both sides distance-adjusting motor, under interlock and automatic operation mode, have synchronism safeguard measure, make distance regulating roller both sides have good synchronism, simultaneity factor is easier to operation and maintenance.
The utility model provides multiple active safety system; comprise that three kinds are detected determination methods and active safety protection action: roller drives main frame electric current and velocity correlation determining method and active safety protection action, the associated determining method of distance-adjusting motor electric current and position and active safety protection action, and roll adjustment system pressure direct Detection Method and active safety protection action.
Roller drives main frame electric current and velocity correlation determining method and active safety protection action: when the main motor of mill (roller drive motor) electric current reaches maximal value, and roller speed is can not reach process speed time, can be judged as load too heavy, for avoiding between roller pressure excessive, first apply roller and drive main frame reduction of speed decompression method, initiatively suitably reduce the speed (being reduced to pressure between roller starts to decline) of roller drive motor, if situation still, the driver of the main motor of mill is by the driver of bus proactive notification distance-adjusting motor, in time roll gap is suitably tuned up and open (being opened to pressure between roller starts to decline), once roller speed reaches process speed, the fast original technique roll gap of quick-recovery, ensure technological process.
Distance-adjusting motor electric current determining method associated with position and active safety protection action: in the time that needs reduce roll gap, distance-adjusting motor electric current reaches maximal value, and Roll-gap position is not while changing, can be judged as load too heavy, for avoiding between roller pressure excessive, the driver of distance-adjusting motor can suitably be opened roll gap (being opened to pressure between roller starts to decline) in time on one's own initiative, alleviate the pressure between roller, after suitable time-delay, again initiatively reduce roll gap, several times repeatedly, until reach target roll gap, still can not reach target roll gap after several times time, produce alerting signal.
Roll adjustment system pressure direct Detection Method and active safety protection action: the detected pressure value of pressure transducer is set up to triple thresholdings; be respectively and adjust ultimate value, operation pressure ultimate value and equipment pressure limit value; for example: to the pressure transducer of 200 tons of specifications, adjusting ultimate value, to be generally 150 tons, operation pressure ultimate value be that 170 tons, equipment pressure limit value are 190 tons.Detected pressure value is greatly that pressure change rate is when excessive adjusting on ultimate value change rapidly, for avoiding pressure between roller to exceed operation pressure ultimate value, the driver of distance-adjusting motor can suitably be opened roll gap (being opened to pressure between roller starts to decline) in time on one's own initiative, alleviate the pressure between roller, after suitable time-delay, again initiatively reduce roll gap, several times repeatedly, until reach target roll gap.When detected pressure value reaches operation pressure ultimate value, application distance-adjusting motor opens fast Protection Code and roller drives the anxious stoppage protection method of stopping reversing of main frame, open fast roll gap (being opened to the maximum roll gap of equipment completely), notify the driver of roller drive motor by bus simultaneously, roller motor is suddenly stopped and the security standpoint that reverses (reverse angle is at 60 °～90 °), and final system is shut down; When detected pressure value exceedes equipment pressure limit value, reporting system is protected by anxious stopping.
Obviously, those skilled in the art can carry out change on various forms and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (4)
1. a mill closed loop motorized nip adjustment control and active safety protective device, it is characterized in that: comprise three drivers (1,2,3) of being furnished with motion control card, the motion control card (4,5,6) that described three drivers (1,2,3) configure is interconnected with one another by industrial field bus communication module (8), and be connected with HMI human interface devices (9) respectively by ethernet communication module (7), described HMI human interface devices (9) is connected with mill PLC controller (10) by industrial field bus communication module (8); The first driver (1) in three described drivers is connected with the second distance-adjusting motor (12) with the first distance-adjusting motor (11) respectively with the second driver (2), and the first distance-adjusting motor (11) is connected with the Worm and worm-wheel gearing (13,14) of mill distance regulating roller (17) both sides respectively with the second distance-adjusting motor (12); The 3rd driver (3) is connected with the main motor of mill (15), and the main motor of mill (15) is connected with the gear drive (16) of stationary roll (18) running with the distance regulating roller (17) for driving mill.
2. mill closed loop motorized nip adjustment control as claimed in claim 1 and active safety protective device; it is characterized in that: on described the first distance-adjusting motor (11), the second distance-adjusting motor (12), the main motor of mill (15), be respectively equipped with rotary encoder, the driver that each rotary encoder is corresponding with place motor is connected.
3. mill closed loop motorized nip adjustment control as claimed in claim 1 or 2 and active safety protective device; it is characterized in that: the roll gap two ends between described distance regulating roller (17) and stationary roll (18) are respectively equipped with the displacement transducer (20) for measuring roll gap size, two displacement transducers (20) are connected with the first driver (1) and the second driver (2) respectively.
4. mill closed loop motorized nip adjustment control as claimed in claim 3 and active safety protective device; it is characterized in that: be respectively equipped with the pressure transducer (19) for measuring distance regulating roller pressure at described distance regulating roller (17) two ends, two pressure transducers (19) are connected with the first driver (1) and the second driver (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055802.8U CN203689091U (en) | 2014-01-28 | 2014-01-28 | Open mill closed loop electric distance adjusting control and active safety protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055802.8U CN203689091U (en) | 2014-01-28 | 2014-01-28 | Open mill closed loop electric distance adjusting control and active safety protection device |
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| CN203689091U true CN203689091U (en) | 2014-07-02 |
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| CN201420055802.8U Expired - Lifetime CN203689091U (en) | 2014-01-28 | 2014-01-28 | Open mill closed loop electric distance adjusting control and active safety protection device |
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| CN (1) | CN203689091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808569A (en) * | 2014-01-28 | 2015-07-29 | 北京二十一世纪科技发展有限公司 | Open mill closed-loop electric distance adjusting control and active safety protection device and method |
| CN108891978A (en) * | 2018-07-24 | 2018-11-27 | 深圳市易美迅智能科技有限公司 | Roller bench |
-
2014
- 2014-01-28 CN CN201420055802.8U patent/CN203689091U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808569A (en) * | 2014-01-28 | 2015-07-29 | 北京二十一世纪科技发展有限公司 | Open mill closed-loop electric distance adjusting control and active safety protection device and method |
| CN104808569B (en) * | 2014-01-28 | 2017-10-27 | 北京二十一世纪科技发展有限公司 | Mill closed loop motorized nip adjustment is controlled and active safety protection device and method |
| CN108891978A (en) * | 2018-07-24 | 2018-11-27 | 深圳市易美迅智能科技有限公司 | Roller bench |
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Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |