CN112919059B - Control method of disk feeder anti-jamming control system - Google Patents
Control method of disk feeder anti-jamming control system Download PDFInfo
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- CN112919059B CN112919059B CN202110359244.9A CN202110359244A CN112919059B CN 112919059 B CN112919059 B CN 112919059B CN 202110359244 A CN202110359244 A CN 202110359244A CN 112919059 B CN112919059 B CN 112919059B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a disk feeder anti-jamming control system and a control method thereof.A control mode that two sets of variable frequency control devices are arranged and a PLC is matched to replace one frequency converter of a traditional disk feeder to control two motors is effectively completed, so that the functions of starting, stopping, early warning, working speed online adjustment and the like of the control system are effectively completed, the rotation speed of a batching disk feeder is synchronous with the rotation speed of a belt conveyor, the running direction is consistent, the running speed of the frequency converter and a weighing sensor realize PID closed-loop automatic adjustment, and accurate batching is completed; when the disk feeder takes place to block the material, through the automatic reversible operation of drive disk feeder, discharge the foreign matter, and get rid of the in-process at the foreign matter, belt feeder operation rotational speed and direction are not influenced to after the foreign matter is discharged automatically, disk feeder can automatic delay forward start, keeps former normal operating condition, thereby avoids because of the dead discharge gate of foreign matter card, causes the emergence of the shut down condition of disk converter protection action.
Description
Technical Field
The invention belongs to the technical field of electric control of material conveying equipment in mining, sintering, iron-making production and the like, and relates to a material blocking prevention control system and a control method of a disk feeder.
Background
In the traditional material conveying equipment, for example: volumetric batching equipment-a quantitative disk feeder, also called batching disk. The working function is that before the materials are mixed uniformly, various sintering raw materials are firstly mixed properly according to the process requirements, and in the production process, the mixing ratio is properly adjusted according to various detection results (such as powder content, drum value and the like) of finished sintered ores so as to improve the qualified product rate.
At present, the electric control system of the domestic batching disc feeder generally adopts an AC frequency converter to drive two three-phase AC asynchronous motors (a disc motor/a belt conveyor motor) to work at synchronous rotating speed in a main loop, and is matched with an electronic scale belt conveyor with an automatic metering device (a weighing sensor) to finish the accurate proportioning process and is interlocked with the electric control of a downstream main conveyor belt conveyor.
In the production process, whether the batching disc supplies smoothly is the key of equipment safe operation, and the production technology generally requires the continuous operation of disc feeder, however in former control mode, because the material is owing to mix with foreign matter etc. easily causes the circumstances such as feed opening card of batching disc dies, further probably causes the action of converter overload protection, takes place batching disc and belt feeder and shuts down the trouble to follow-up shut down the maintenance very trouble.
Disclosure of Invention
The invention provides a disk feeder anti-jamming control system and a control method thereof, aiming at the defect that an electric control system of a disk feeder in the prior art is easy to cause shutdown faults due to jamming of a feeding disk, and the technical scheme for solving the technical problems is as follows:
the invention discloses an anti-blocking control system of a disk feeder, which comprises a belt conveyor and a disk feeder, wherein the belt conveyor comprises a belt conveyor motor and a weighing sensor, the disk feeder comprises a material bin, a feed opening, a disk and a disk motor connected with the disk, and the control system also comprises a power supply unit, a disk feeder frequency converter, a belt conveyor frequency converter and a PLC (programmable logic controller); a foreign matter discharge port is formed in the disc feeder; the power supply unit is respectively connected with the disc feeder frequency converter, the belt conveyor frequency converter, the weighing sensor and the PLC through circuits, the disc motor and the belt conveyor motor are respectively connected with the disc feeder frequency converter and the belt conveyor frequency converter through circuits, a disc feeder overload relay is arranged on the circuit between the disc feeder frequency converter and the disc motor, and the disc feeder frequency converter, the belt conveyor frequency converter, the weighing sensor and the disc feeder overload relay are respectively connected into the PLC through circuits.
Further, the power supply unit comprises a first power supply and a second power supply, wherein the first power supply is a three-phase 380V alternating current power supply, and the second power supply is a 220V alternating current power supply and is connected with or independently arranged from the first power supply; the disc feeder frequency converter and the belt conveyor frequency converter are respectively connected with a first power supply, and the PLC controller and the weighing sensor are respectively connected with a second power supply.
Further, a disc motor cooling fan and a belt conveyor motor cooling fan are respectively arranged on the disc motor and the belt conveyor motor, and are respectively connected with a first power supply through lines.
Furthermore, an isolation distributor is further arranged on a circuit where the PLC is connected with the weighing sensor, the isolation distributor is connected with a second power supply through a circuit, and the frequency converter of the disc feeder is connected with the isolation distributor through a circuit.
The system further comprises a first alternating current contactor, a second alternating current contactor, a third alternating current contactor, a relay control unit and an industrial personal computer remote control display unit; the main contacts of the first alternating current contactor, the second alternating current contactor and the third alternating current contactor are respectively arranged on the lines of the first power supply and the frequency converter of the disc feeder, the cooling fan of the disc motor and the cooling fan of the belt conveyor motor; the relay control unit is connected with a second power supply through a circuit; and the coil and the auxiliary contact of the first alternating current contactor, the coil and the auxiliary contact of the second alternating current contactor, the coil and the auxiliary contact of the third alternating current contactor, the relay control unit and the industrial personal computer remote control display unit are respectively connected into the PLC through circuits.
The system further comprises a disc frequency converter operation relay, a disc frequency converter material clamping automatic operation relay, a belt conveyor frequency converter operation relay and a system operation relay, wherein coils of the four relays are respectively connected with the PLC through circuits; the industrial personal computer remote control display unit comprises a system remote start button and a system remote stop button; the relay control unit comprises a disc frequency converter relay allowing the relay to be started, a system automatic given signal relay, a disc frequency converter time delay forward transmission time relay, a material blocking time delay reverse rotation time relay and a power supply normal relay; a coil of the power supply normal relay is connected with a first power supply and a second power supply in series through a circuit, and a movable contact of the power supply normal relay is connected into a PLC (programmable logic controller) through the circuit; the dynamic contact of the system operation relay is connected with a coil of the system automatic given signal relay in series and is connected with a second power supply, and the dynamic contact of the system automatic given signal relay also passes through a circuit disc feeder frequency converter and a belt conveyor frequency converter respectively; the disc frequency converter allows a coil of the starting relay to be connected with the output end of the belt conveyor frequency converter in series and connected with a second power supply, and a dynamic contact of the disc frequency converter is connected with the PLC through a line; a movable contact of the belt conveyor frequency converter operation relay is connected into the belt conveyor frequency converter through a line; the dynamic contact of the automatic material blocking operation relay of the disc frequency converter is connected into a PLC (programmable logic controller) through a circuit; the auxiliary contact of the second alternating current contactor, the break contact of the overload relay of the disk feeder and the coil of the time delay forward transmission time relay of the disk frequency converter are connected in series and connected with a second power supply; the dynamic on-off contact of the overload relay of the disc feeder, the dynamic off-contact of the operation relay of the disc frequency converter and the coil of the material clamping delay reversal time relay are connected in series and connected with a second power supply; the dynamic contact and the dynamic contact of the disc frequency converter operation relay are respectively connected into the PLC and the disc feeder frequency converter through circuits, and the dynamic contact of the disc frequency converter material clamping automatic operation relay are connected in series and connected into the disc feeder frequency converter; and the normally open contact of the disc frequency converter time delay forward transmission time relay and the normally open contact of the material blocking time delay reverse transmission time relay are respectively connected into the PLC through circuits.
Furthermore, a selection switch and a local control unit are also connected to the PLC, and the selection switch realizes the functions of remote control and local control of the system; the in-situ control unit includes an in-situ start button and an in-situ stop button.
Furthermore, a manual acceleration button and a manual deceleration button are arranged on the frequency converter of the disc feeder and the frequency converter of the belt conveyor; the automatic given signal relay of the system is connected with the disk feeder frequency converter and the belt conveyor frequency converter respectively after the break contact of the system is connected with the manual acceleration button and the manual deceleration button on the disk feeder frequency converter and the belt conveyor frequency converter in series.
The invention is based on the control method of the disk feeder anti-jamming control system in the technical scheme, and the control method comprises the following steps:
after the power supply unit is closed, various electrical components are powered on, the PLC controls the belt conveyor frequency converter to operate, so as to control the belt conveyor to start and operate, meanwhile, the PLC receives a real-time analog signal transmitted by the weighing sensor, and then the real-time analog signal is transmitted to the belt conveyor frequency converter through the PLC, the belt conveyor frequency converter automatically sets the real-time operating frequency of a belt conveyor motor according to the real-time analog signal, and outputs a set rotating speed to the belt conveyor motor to drive the belt conveyor to normally operate; meanwhile, after the PLC controller controls the frequency converter of the disc feeder to be in a power-on ready state and delays for a specified time, the PLC controller transmits a real-time analog signal transmitted by the weighing sensor to the frequency converter of the disc feeder, the frequency converter of the disc feeder automatically finishes the setting of the real-time operating frequency of the disc motor according to the real-time analog signal and outputs a given rotating speed to the disc motor, the disc motor is driven to drive the disc to operate in the forward direction and keep synchronous with the rotating speed of the belt conveyor, and the PID closed-loop automatic regulation of the signals of the weighing sensor and the rotating speeds output by the two frequency converters is realized;
when the material jamming occurs in the disk feeder, the PLC controls the disk feeder frequency converter to drive the disk motor to stop rotating forwards under the action of the disk feeder overload relay, meanwhile, overload early warning information with set time length is sent out, the PLC controls the disk feeder frequency converter to drive the disk motor to drive the disk to rotate backwards within a specified time which does not exceed the overload early warning information time length, and foreign materials are removed through the foreign material discharge opening; after the disk feeder runs in the reverse direction for a specified time, the disk feeder overload relay resets, so that the PLC controls the disk feeder frequency converter to drive the disk motor to stop running in the reverse direction, and meanwhile, forward rotation is continued according to the forward running mode, and continuous feeding is realized.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, two sets of variable frequency control devices are adopted and matched with a PLC (programmable logic controller) to replace a one-to-two control mode that one frequency converter of a traditional disc feeder controls two motors, so that the functions of starting, stopping, early warning, online adjustment of the working rotating speed and the like of a control system can be effectively completed, the rotating speed of the batching disc feeder is synchronous with the rotating speed of a belt conveyor, the running direction is consistent, the running rotating speed of the frequency converter and a weighing sensor realize PID (proportion integration differentiation) closed-loop automatic adjustment, and accurate batching is completed;
(2) when the material distribution disc foreign matter is clamped in the disc feeder, the control system sends out early warning information and realizes automatic reversible operation of the disc feeder to discharge the foreign matter, the operation rotating speed and direction of the belt conveyor are not affected in the process of discharging the foreign matter, and when the foreign matter is automatically discharged and the early warning signal is recovered to be normal, the disc feeder is automatically delayed to be started in the positive direction to keep the original normal working state, so that the condition that the disc frequency converter is shut down due to the protection action of the disc frequency converter caused by the clamping of the foreign matter at the discharge port is avoided;
(3) the invention has two modes of remote control and local control, and can be freely selected through a selection switch according to the actual conditions of ingredients;
(4) the overload relay of the disk feeder is arranged in front of the disk feeder, and the action current protection sequence is set according to the condition that the protection value of the overload relay of the disk feeder is smaller than the overcurrent protection value of the frequency converter of the disk feeder, so that the overload relay of the disk feeder acts first when the disk feeder is jammed, and the shutdown is avoided;
(5) the invention is not only suitable for the reconstruction of the electric control system of the traditional disk feeder, but also suitable for the new installation of the electric control system of the disk feeder and the design of various similar electric control systems, and the used electric elements are common, the system design is novel, the structure is simple, the functions are complete, the application effect is good, and the practicability is strong.
Drawings
FIG. 1 is a schematic diagram of a material blockage prevention control system of a disk feeder;
FIG. 2 is a schematic control wiring diagram of a PLC controller according to the present invention;
FIG. 3 is a schematic control wiring diagram of the frequency converter of the disk feeder in the invention;
FIG. 4 is a schematic wiring diagram of the relay control unit of the present invention;
FIG. 5 is a schematic diagram of a PLC receiving feedback of various relays and AC contactors in the invention;
FIG. 6 is a schematic control wiring diagram of a belt conveyor frequency converter according to the present invention;
in the figure: the device comprises a PLC (programmable logic controller), a 2-disc feeder frequency converter, a 3-belt conveyor frequency converter, a 4-belt conveyor, a 41-belt conveyor motor, a 42-weighing sensor and a 43-belt conveyor motor cooling fan; 5. a disk feeder, 51 a material bin; 52. the device comprises a feed opening, a 53 disc, a 54 foreign matter discharge opening, a 55 disc motor, a 56 disc motor cooling fan, a 6 isolation distributor, a 7 relay control unit, an 8 industrial personal computer remote control display unit, a 9 local control unit, a KH1 disc feeder overload relay, a QL1 first power supply, a QL2 second power supply, a KM1 first alternating current contactor, a KM2 second alternating current contactor, a KM3 third alternating current contactor, a KA11 disc frequency converter operation relay, a KA01 disc frequency converter blocking automatic operation relay, a KA21 belt conveyor frequency converter operation relay, a PLCJ system operation relay, a KH1 disc feeder overload relay, a KA disc frequency converter start-allowing relay, a KAQ2 system automatic setting signal relay, a KT11 disc frequency converter delay forward transmission time relay, a KT01 blocking reverse transmission time relay, a KA3 power supply normal relay, a KAQF power supply normal relay, a KA power supply relay, a KAQA system automatic setting signal relay, a KAQA system relay, a KT11 disc frequency converter delay forward transmission time relay, a KT01 blocking reverse transmission time relay, a KALX relay, a K power supply relay, a power, Sb1. start-on-the-spot button, sb2. stop-on-the-spot button, sb3. remote start button, sb4. system remote stop button, sa. selection switch, szs. manual acceleration button, sjs. manual deceleration button.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly; the terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The present invention is not described in detail, but is known to those skilled in the art.
As shown in fig. 1 to fig. 6, which are described as an example, the disk feeder anti-jamming control system of the present invention includes a belt conveyor 4 and a disk feeder 5, where the belt conveyor 4 includes a belt conveyor motor 41 for driving the belt conveyor 4 to operate and a weighing sensor 42 for weighing the material on the belt conveyor, the disk feeder 5 includes a material bin 51, a discharge opening 52 below the material bin 51, a disk 53, and a disk motor 55 connected to the disk 53, and the disk motor 55 is configured to drive the disk 53 to rotate to realize batching. In this example, the model of the disc motor 55 and the model of the belt conveyor motor 41 are Y225M-6/30KW and Y100L2-4/3KW respectively, and the model of the weighing sensor 42 is ICS-17A-1000.
As the innovation of the invention, the disk feeder 5 is provided with a foreign matter discharge port 54, when the disk feeder 5 clamps the material, the disk 53 runs in reverse direction and discharges the foreign matter from the foreign matter discharge port 54, and a foreign matter collecting device can be added on site according to the actual situation; the disk feeder anti-jamming control system further comprises a power supply unit, a disk feeder frequency converter 2, a belt conveyor frequency converter 3 and a PLC (programmable logic controller) 1, wherein in the embodiment, the PLC 1 selects a Mitsubishi FX2N series small-sized machine, the disk feeder frequency converter 2 selects a Fuji FRN30G1-4C type frequency converter, and the belt conveyor frequency converter 3 selects a Fuji FRN5.5G1-4C type frequency converter; the power supply unit comprises a first power supply QL1 and a second power supply QL2, wherein the first power supply QL1 is a three-phase 380V alternating current power supply and is used for providing AC380V power for a main loop of the control system, the second power supply QL2 is a 220V alternating current power supply and is used for providing power for the control loop in the control system, and the second power supply QL2 can be a 220V alternating current power supply connected from the first power supply QL1 or can be arranged independently.
In this example, R, S, T terminals of the frequency converter 2 of the disc feeder and the frequency converter 3 of the belt conveyor are respectively connected with three-phase lines of a first power supply QL1 through lines, and U, V, W terminals of the two frequency converters are respectively connected with the disc motor 55 and the belt conveyor motor 41 through lines; the L and N terminals of the PLC controller 1 and the weighing sensor 42 are respectively connected with a second power supply QL2 to obtain power supplies; a disk feeder overload relay KH1 is arranged on a line between the disk feeder frequency converter 2 and the disk motor 55, and the disk feeder frequency converter 2, the belt conveyor frequency converter 3, the weighing sensor 42 and the disk feeder overload relay KH1 are respectively connected to the PLC controller 1 through lines; the action current protection value of the disk feeder overload relay KH1 is set according to the overcurrent protection value smaller than that of the disk feeder frequency converter.
Further, an isolation distributor 6 is further arranged on a line connecting the PLC controller 1 and the weighing sensor 42, the isolation distributor 6 is KYP-A420-2A420-D in model, and is connected with a second power supply QL2 through a line to obtain a power supply, the disk feeder frequency converter 2 is connected with the isolation distributor 6 through a line, namely weight information measured by the weighing sensor 42 is transmitted to the isolation distributor 6 and then transmitted to the PLC controller 1 and the disk feeder frequency converter 2 through two paths respectively.
When in application, the control method matched with the disk feeder anti-jamming control system comprises the following steps:
after the first power supply QL1 and the second power supply QL2 are closed, various electrical components in the control system are powered on, the PLC controller 1 firstly controls the belt conveyor frequency converter 3 to operate, and then controls the belt conveyor motor 41 of the belt conveyor 4 to start to operate, meanwhile, the PLC controller 1 receives a real-time analog signal transmitted by the weighing sensor 42, and then the real-time analog signal is transmitted to the belt conveyor frequency converter 3 through the PLC controller 1, the belt conveyor frequency converter 3 automatically finishes setting of the real-time operating frequency of the belt conveyor motor 41, and outputs a set rotating speed to the belt conveyor motor 41 through the belt conveyor frequency converter 3 to drive the belt conveyor 4 to normally operate; meanwhile, the PLC controller 1 controls the frequency converter 2 of the disc feeder to be in a power-on ready state and after a delay designated time (time can be set by definition), the PLC controller 1 transmits a real-time analog signal transmitted by the weighing sensor 42 to the frequency converter 2 of the disc feeder, the frequency converter 2 of the disc feeder automatically finishes setting of real-time operation frequency of the disc motor 55 according to the real-time analog signal, and outputs a set rotating speed to the disc motor 55 through the frequency converter 2 of the disc feeder, the disc motor 55 is driven to drive the disc 53 to operate in a forward direction and keep synchronous with the rotating speed of the belt conveyor 4, and PID closed-loop automatic regulation of signals of the weighing sensor 42 and the rotating speeds output by the two frequency converters is realized;
when the material is blocked in the disk feeder 5, the PLC controller 1 controls the disk feeder frequency converter 2 to drive the disk motor 55 to stop rotating forwards under the action of the disk feeder overload relay KH1, overload early warning information (the early warning information can be shown by setting an indicator lamp, a display screen and the like connected with the PLC controller 1) with set time (such as 8S) is sent out at the same time, the PLC controller 1 controls the disk feeder frequency converter 2 to drive the disk motor 55 to drive the disk 53 to rotate backwards within specified time (such as 6S time) which is not more than the overload early warning information time, and foreign materials are removed through the foreign material discharge port 54; after the disk feeder 5 runs reversely for a specified time (such as 2-3min), the disk feeder overload relay KH1 is reset, so that the PLC controller 1 controls the disk feeder frequency converter 2 to drive the disk motor 55 to stop running reversely, and meanwhile, the forward rotation is continued according to the forward running mode, thereby realizing the purpose of removing foreign matters without stopping the machine and continuing feeding. In the operation process, if the overload time of the disk feeder overload relay KH1 exceeds the preset time (such as the early-warning 8S time), the control system is stopped.
As a further arrangement of the above-mentioned material-blocking prevention control system for the disc feeder, a disc motor cooling fan 56 and a belt conveyor motor cooling fan 43 are respectively arranged on the disc motor 55 and the belt conveyor motor 41 for heat dissipation of the disc motor 55 and the belt conveyor motor 41, and the disc motor cooling fan 56 and the belt conveyor motor cooling fan 43 are respectively connected with the first power supply QL1 through lines.
Further, the disk feeder anti-jamming control system further comprises a first alternating current contactor KM1, a second alternating current contactor KM2, a third alternating current contactor KM3, a relay control unit 7 and an industrial personal computer remote control display unit 8; the main contacts of the first alternating current contactor KM1, the second alternating current contactor KM2 and the third alternating current contactor KM3 are respectively arranged on the lines of the first power supply QL1, the disk feeder frequency converter 2, the first power supply QL1, the disk motor cooling fan 56, the first power supply QL1 and the belt conveyor motor cooling fan 43 and are respectively used for controlling the operation of the disk feeder frequency converter 2, the disk motor cooling fan 56 and the belt conveyor motor cooling fan 43; the relay control unit 7 is connected with a second power supply QL2 through a line to obtain an AC220V power supply; the coil and the auxiliary contact of the first alternating current contactor KM1, the coil and the auxiliary contact of the second alternating current contactor KM2, the coil and the auxiliary contact of the third alternating current contactor KM3, the relay control unit 7 and the industrial personal computer remote control display unit 8 are respectively connected to the PLC controller 1 through lines, more specifically, one ends of the coils of the first alternating current contactor KM1, the second alternating current contactor KM2 and the third alternating current contactor KM3 are respectively connected with Y010, Y011 and Y012 terminals of the PLC controller 1, and the other ends of the coils of the first alternating current contactor KM 3878, the second alternating current contactor KM2 and the COM2 terminals of the PLC controller 1 are respectively connected with a second power supply QL2.
In this example, the disk feeder material blockage prevention control system further comprises a disk frequency converter operation relay KA11, a disk frequency converter material blockage automatic operation relay KA01, a belt conveyor frequency converter operation relay KA21 and a system operation relay PLCJ, wherein one ends of coils of the four relays are respectively connected with Y000, Y001, Y003 and Y002 output terminals of the PLC controller 1 through lines, and the other ends of the coils of the four relays are respectively connected with a second power supply QL2 between COM2 terminals of the PLC controller 1.
In this example, the remote control display unit 8 of the industrial personal computer is used for displaying various control states of the control system and inputting remote control information to the PLC controller 1, and includes a system remote start button SB3 and a system remote stop button SB4 connected to the X001 terminal and the X002 terminal of the PLC controller 1, and a display screen, a touch screen, or an HMI man-machine screen for displaying various working states of the control system in real time, and the system remote start button SB3 and the system remote stop button SB4 can input on or off signals to the X003 terminal and the X004 terminal of the PLC controller 1 through the built-in program of the remote control display unit 8 of the industrial personal computer.
In this example, the relay control unit 7 comprises a disc frequency converter allowed starting relay KA, a system automatic given signal relay KAQ2, a disc frequency converter delayed forward transmission time relay KT11, a material blocking delayed reverse transmission time relay KT01 and a power supply normal relay KA3, wherein the five relays all provide AC220V power by a second power supply QL 2; a coil of the power supply normal relay KA3 is connected with the first power supply QL1 and the second power supply QL2 in series through a line, and a dynamic contact of the power supply normal relay is connected into the PLC 1 through the line; the dynamic contact of the system operation relay PLCJ is connected with a coil of an automatic system setting signal relay KAQ2 in series and connected with a second power supply QL2, and the dynamic contact of the automatic system setting signal relay KAQ2 is connected to an X1 terminal of the disc feeder frequency converter 2 and an X1 terminal of the belt conveyor frequency converter 3 through lines respectively; the disc frequency converter allows a coil of the starting relay KA to be connected with an output terminal Y5A/Y5C of the belt conveyor frequency converter 3 in series and connected with a second power supply QL2, and a dynamic contact of the disc frequency converter is connected into the PLC controller 1 through a line; a movable contact of the belt conveyor frequency converter operation relay KA21 is connected into the FWD terminal of the belt conveyor frequency converter 3 through a line; a dynamic contact of the automatic material blocking operation relay KA01 of the disc frequency converter is connected into the PLC 1 through a line; an auxiliary contact of the second alternating current contactor KM2, a dynamic break contact of a disk feeder overload relay KH1 and a coil of a disk frequency converter delayed forward transmission time relay KT11 are connected in series and connected with a second power supply QL 2; a moving contact of the disk feeder overload relay KH1, a moving contact of the disk frequency converter operation relay KA11 and a coil of the material clamping delay reversal time relay KT01 are connected in series and connected with a second power supply QL 2; the dynamic contact and the dynamic contact of the disk frequency converter operation relay KA11 are respectively connected into the PLC controller 1 and the FWD terminal of the disk feeder frequency converter 2 through lines, and the dynamic contact of the disk frequency converter material clamping automatic operation relay KA01 are connected in series and are connected into the REV terminal of the disk feeder frequency converter 2; the normally open contact of the disc frequency converter time delay forward transmission time relay KT11 and the normally open contact of the card material time delay reverse transmission time relay KT01 are respectively connected to input terminals X005, X011 and X012 of the PLC controller 1 through circuits; and the break contact of the disk feeder overload relay KH1 is also connected to an X013 input terminal of the PLC controller 1 through a circuit.
In this example, carousel feeder overload relay KH1 can set up to automatic re-setting formula overload relay to can block the material at carousel feeder 5 and after carousel feeder overload relay KH1 action, can automatic re-setting, ensure that control system does not shut down and can continue the feed after the foreign matter is got rid of, reduce and shut down the maintenance loss. The disc frequency converter time-delay forward transmission time relay KT11 and the material-clamping time-delay reverse rotation time relay KT01 can automatically adjust time (0-60S) according to actual conditions on site.
The specific control method comprises the following steps: before the disk feeder anti-jamming control system operates, a first power supply QL1 and a second power supply QL2 are switched on, auxiliary points of the two power switches are closed, a power supply normal relay KA3 coil is electrified and attracts, a dynamic contact of the power supply normal relay KA3 coil is switched on and sends a signal to a PLC (programmable logic controller) 1, and the PLC 1 transmits the signal to an industrial personal computer remote control display unit 8 to display that the power supply is normal; when the system is operated, a system remote start button SB3 is clicked on a display screen, a touch screen or an HMI (human machine interface) of an industrial personal computer remote control display unit 8 to transmit a remote start signal to a PLC (programmable logic controller) 1, a Y002 terminal of the PLC 1 outputs to enable a PLCJ coil of a system operation relay to be electrified and attracted, a dynamic contact of the PLCJ of the system operation relay is connected, a coil of a KAQ2 of an automatic rotating speed setting signal of the system is electrified and attracted, a Y010 terminal of the PLC 1 outputs to enable a coil of a KM1 coil of a first alternating current contactor to be electrified and attracted, so that power supply for a disc frequency converter 2 is realized, an output point Y5A/Y5C of the disc frequency converter 2 is connected with the disc frequency converter to allow the coil of a relay KA to be started, the disc frequency converter allows the dynamic contact of the relay KA to be connected and transmits a signal to the PLC 1, the PLC 1 transmits the signal to the remote control display unit 8, and displaying that the frequency converter of the disc feeder is ready.
Meanwhile, a Y012 terminal of the PLC controller 1 synchronously outputs to enable a coil of a third alternating current contactor KM3 to be electrified and attracted, a belt conveyor motor cooling fan 43 is electrified and operated, a power contact of the third alternating current contactor KM3 is switched on and sends a signal to the PLC controller 1, the PLC controller 1 sends the signal to an industrial personal computer remote control display unit 8 to display that the belt conveyor motor cooling fan 43 is normally operated, then a Y011 terminal of the PLC controller 1 outputs to enable a coil of a belt conveyor frequency converter operation relay KA21 to be electrified and attracted, a power contact of a belt conveyor frequency converter operation relay KA21 is switched on to switch on a FWD forward direction operation terminal of a belt conveyor frequency converter 3, the belt conveyor frequency converter 3 works and enables a belt conveyor motor 41 to operate, and then a belt conveyor 4 is forwardly operated, and simultaneously an output terminal Y1(PD)/CMY (PD) of the belt frequency converter 3 is switched on and sends the signal to the PLC controller 1, the PLC 1 transmits signals to an industrial personal computer remote control display unit 8 to display that the belt conveyor frequency converter operates normally; meanwhile, the automatic rotating speed setting signal relay KAQ2 is in an actuation state, the actuation contact of the relay is closed, and the X1 terminal of the belt conveyor frequency converter 2 is connected, so that the automatic rotating speed setting state of the belt conveyor is realized, namely after the belt conveyor runs, the PLC controller 1 starts to receive a real-time analog signal transmitted by the weighing sensor 42, and then the real-time analog signal is transmitted to the C1/11 terminal of the belt conveyor frequency converter 3 through the PLC controller 1, the belt conveyor frequency converter 3 automatically sets the real-time running frequency of the belt conveyor motor 41 according to the real-time analog signal, and outputs the given rotating speed to the belt conveyor motor 41 through the belt conveyor frequency converter 3, so as to drive the belt conveyor 4 to normally run.
After the PLC controller 1 controls the system to delay for N seconds (a user can customize and adjust time), the Y011 terminal output of the PLC controller 1 enables a coil of a second alternating current contactor KM2 to be electrified and attracted, a disc motor cooling fan 56 is electrified and operates, meanwhile, an auxiliary point of the second alternating current contactor KM2 is closed and sends a signal to the PLC controller 1, the PLC controller 1 sends the signal to an industrial personal computer remote control display unit 8, and the disc motor cooling fan 56 is displayed to normally operate; meanwhile, after the closed dynamic contact of the second AC contactor KM2 is closed, the coil of the disk frequency converter delayed forward transmission time relay KT11 is connected with the closed dynamic contact of the disk feeding machine overload relay KH1, so that the coil is electrified and sucked, after the delay time of 10S (the specified time can be adjusted according to actual conditions), the normally open contact of the disk frequency converter delayed forward transmission time relay KT11 is closed at the X011 input point of the PLC controller 1, the normally open contact of the disk frequency converter delayed forward transmission time relay KT11 is output by the Y000 terminal of the PLC controller 1, the coil of the disk frequency converter operation relay KA11 is electrified and sucked, meanwhile, the closed dynamic contact of the disk frequency converter operation relay KA11 connected with the FWD input terminal of the disk frequency converter 2 is closed, the disk feeding machine frequency converter 2 works, the disk motor 55 is driven to normally operate, the closed dynamic contact of the disk frequency converter operation relay KA11 is used for transmitting signals to the PLC controller 1, the PLC controller 1 transmits the signals to the remote control display unit 8 of the industrial personal computer, displaying the operation of the disc feeder; because the automatic rotating speed given signal relay KAQ2 is attracted, the dynamic contact is closed, the rotating speed automatic operation given state of the frequency converter 2 of the disc feeder is switched on, namely the PLC controller 1 transmits a real-time analog signal transmitted by the weighing sensor 42 to the frequency converter 2 of the disc feeder, the frequency converter 2 of the disc feeder automatically completes the given of the real-time operating frequency of the disc motor 55 according to the real-time analog signal, and outputs the given rotating speed to the disc motor 55 through the frequency converter 2 of the disc feeder, the disc motor 55 is driven to drive the disc 53 to operate in the forward direction and keep synchronous with the rotating speed of the belt conveyor 4, the PID closed loop automatic adjustment of the signal of the weighing sensor 42 and the rotating speed output by the frequency converter is realized, at the moment, the disc 53 operates in the forward direction, the material is transmitted to the belt conveyor 4 through the material discharging hole 52, the output point Y1/CMY of the frequency converter 2 of the disc feeder is switched on and transmits the signal to the PLC controller 1, the PLC controller 1 transmits signals to the industrial personal computer remote control display unit 8, the operation of the frequency converter of the disk feeder is displayed to be normal, and the whole control system is started.
When the control system operates, a system remote stop button SB4 is clicked on a display screen, a touch screen or an HMI (human machine interface) of an industrial personal computer remote control display unit 8, a PLC (programmable logic controller) 1 receives a system remote stop signal, a disc motor and a disc motor cooling fan are instantly stopped by controlling corresponding relays and the like through the PLC 1, after N seconds of delay (time can be set according to actual conditions), the belt motor and the belt motor cooling fan are controlled to stop operating, but a first alternating current contactor KM1 of the disc feeder frequency converter is controlled to be still in an attraction state to supply power to the disc feeder frequency converter 2, an output point Y5A/Y5C of the disc feeder frequency converter 2 is connected to the disc frequency converter to allow a relay KA coil to be started, the disc frequency converter allows a dynamic contact of the starting relay KA to be connected and sends a signal to the PLC 1, the PLC controller 1 transmits signals to the industrial personal computer remote control display unit 8, and the ready state of the frequency converter of the disc feeder is displayed to be prepared for next restarting.
In the material conveying production, when foreign matters appear in the material bin 51 and are clamped at the material discharge opening 52, the friction force of the disc 53 is increased, the operation is blocked, and the working current of the disc motor 55 rises, when the current parameters of each protection component are set, the action current protection sequence is set according to the condition that the overcurrent protection value of the disc feeder overload relay KH1 is smaller than the overcurrent protection value of the disc feeder frequency converter 2, so that when the material clamping condition occurs, the disc feeder overload relay KH1 acts first, in the control program of the PLC controller 1, the invention requires that the control system carries out early warning when being overloaded, and after the continuous overload warning reaches the set time (such as 8S), the PLC controller 1 controls the whole system to stop the belt conveyor, therefore, when the disc feeder overload relay KH1 acts and is less than or equal to 8S, the frequency converter 3 continues to work, and the belt conveyor motor 41 continues to operate, the belt conveyor 4 is still in a running state; at this time, the break contact of the disk feeder overload relay KH1 is opened, the X013 input point of the PLC controller 1 is disconnected, the PLC controller 1 sends out system overload warning through the display screen, the touch screen or the HMI man-machine picture of the industrial personal computer remote control display unit 8, or sends out system overload warning information through connecting an indicator lamp, a buzzer and the like on the PLC controller 1, the disk frequency converter delay forward time relay KT11 coil is power-off released, the X011 input point of the PLC controller 1 is instantly opened, the PLC controller 1 controls the Y000 output point to make the disk frequency converter operation relay KA11 and the coil power-off released, the dynamic contact KA11 of the disk frequency converter operation relay KA11 at the FWD input point of the disk feeder frequency converter 2 is opened, the disk frequency converter 2 stops forward work, and drives the disk motor 55 to stop working; meanwhile, the dynamic contact of the disc feeder overload relay KH1 is closed, the coil of the material clamping delay reversal time relay KT01 is switched on through the dynamic contact of the disc frequency converter operation relay KA11, the coil of the material clamping delay reversal time relay KT01 is electrified and attracted and starts timing, after a specified time (such as 6S) is reached, the normally open contact of the material clamping delay reversal time relay KT01 is closed, the X012 input point of the PLC controller 1 is switched on, the Y001 output point of the PLC controller 1 enables the coil of the disc frequency converter material clamping automatic operation relay KA01 to be electrified and attracted, the dynamic contact of the disc frequency converter material clamping automatic operation relay KA01 connected with the REV reversal input point of the disc feeder frequency converter 2 is closed, the disc feeder frequency converter 2 starts to work through the dynamic contact of the disc frequency converter operation relay KA11, the disc feeder frequency converter 2 is driven to reversely work, the disc motor 55 is driven to reversely work, the dynamic contact of the material clamping automatic operation relay 01 is switched on and signals are sent to the PLC controller 1, the PLC controller 1 transmits signals to the industrial personal computer remote control display unit 8 to display the material clamping running state of the disc feeder, at the moment, the disc feeder motor 55 drives the disc 53 to run reversely, and foreign materials are removed through the foreign material discharge port 54.
Because the disk feeder overload relay KH1 of the control system adopts an automatic reset type overload relay, when the disk feeder works for 2-3min after foreign matters are removed in a reverse rotation mode, a break contact of the disk feeder overload relay KH1 automatically resets, a make contact of the disk feeder overload relay KH1 opens, a coil power supply of the material clamping delay reversal time relay KT01 is disconnected and released, a make contact of an X012 input point material clamping delay reversal time relay KT01 connected with the PLC 1 is opened, a Y001 output point of the PLC 1 enables a coil of the disk frequency converter material clamping automatic operation relay KA01 to lose power and release, a make contact of the disk frequency converter material clamping automatic operation relay KA01 connected with an REV input point of the disk feeder frequency converter 2 opens, the disk feeder frequency converter 2 stops working, and the disk motor 55 stops reversely running; meanwhile, after the system remote start button SB3 is clicked and the belt conveyor is enabled to normally operate, the system automatically continues to complete the subsequent forward feeding production work of delayed start.
In this embodiment, the control system can be additionally provided with a local control mode besides a remote automatic control mode, the PLC controller 1 is connected with a selection switch SA and a local control unit 9, the selection switch SA is a single-pole double-throw switch, and two fixed ends of the selection switch SA are respectively connected with X000 and X001 input terminals of the PLC controller 1, so as to realize the functions of remote control and local control of the system; the local control unit 9 includes a local start button SB1 and a local stop button SB2.
Furthermore, a manual acceleration button SZS and a manual deceleration button SJS are arranged on the frequency converter 2 of the disk feeder and the frequency converter 3 of the belt conveyor, and are used for increasing and decreasing the operating speed output by the corresponding frequency converters during local control; the break contact of the system automatic given signal relay KAQ2 is respectively connected in series with the manual acceleration button SZS and the manual deceleration button SJS on the disk feeder frequency converter 2 and the belt conveyor frequency converter 3 and then is connected to the disk feeder frequency converter 2 and the belt conveyor frequency converter 3.
When the selection switch SA selects 45 degrees on the left, namely the selection switch SA is communicated with an X000 input terminal of the PLC controller 1, for the remote control of the system, the PLC controller 1 transmits the signal to the industrial personal computer remote control display unit 8, and the display system selects a remote operation mode.
When the device is operated on site, the selection switch SA is selected to be 45 degrees on the right, the PLC controller 1 transmits the signal to the industrial personal computer remote control display unit 8, the display system selects a local operation mode, a user directly operates a local start button SB1 on a field operation box to start the control system, a Y010 output terminal of the PLC controller 1 synchronously outputs the signal, a coil of a first alternating current contactor KM1 is electrified and attracted, power is supplied to the disk feeder frequency converter 2, an output point Y5A/Y5C of the disk feeder frequency converter 2 is connected with the disk frequency converter to allow the relay KA coil to be started, the coil is electrified and attracted, the disk frequency converter allows a dynamic contact of the starting relay KA to be connected and transmits the signal to the PLC controller 1, the PLC controller 1 transmits the signal to the industrial personal computer remote control display unit 8, and the display that the disk feeder frequency converter 2 is ready; meanwhile, the Y012 point of the PLC controller 1 is synchronously output, so that the coil of the third AC contactor KM3 is electrified and attracted, the belt conveyor motor cooling fan 43 operates, the make contact of the third AC contactor KM3 is switched on and sends a signal to the PLC controller 1, the PLC controller 1 sends the signal to the industrial personal computer remote control display unit 8 to display that the belt conveyor motor cooling fan 43 operates normally, then the PLC controller 1 outputs the signal to enable the coil of the belt conveyor frequency converter operation relay KA21 to be electrified and attracted, the make contact of the belt conveyor frequency converter operation relay KA21 is closed and is switched on a FWD forward direction operation terminal of the belt conveyor frequency converter 3, the belt conveyor frequency converter 3 works and enables the belt conveyor motor 41 to operate, and the belt conveyor 4 operates forward direction, and simultaneously the output terminal Y1(PD)/CMY (PD) of the belt frequency converter 3 is switched on and sends the signal to the PLC controller 1, the PLC 1 transmits signals to an industrial personal computer remote control display unit 8 to display that the belt conveyor frequency converter operates normally; a manual acceleration button SZS and a manual deceleration button SJS which are arranged on the manual operation box and used for adjusting the frequency of the belt conveyor frequency converter, and a given rotating speed is output to the belt conveyor motor through the belt conveyor frequency converter; after N seconds of delay (the user can self-define and adjust the time), the Y011 terminal of the PLC controller 1 outputs a signal to enable a coil of a second alternating current contactor KM2 to be electrified and attracted, a disc motor cooling fan 56 is electrified and operated, an auxiliary point of the second alternating current contactor KM2 is closed and transmits the signal to the PLC controller 1, the PLC controller 1 transmits the signal to an industrial personal computer remote control display unit 8 to display that the disc motor cooling fan 56 operates normally, meanwhile, the Y000 terminal of the PLC controller outputs a signal to enable a coil of a disc frequency converter operation relay KA11 to be attracted, a dynamic contact of a disc frequency converter operation relay KA11 connected with a FWD input terminal of a disc feeder frequency converter 2 is closed, the disc feeder frequency converter 2 operates to drive a disc motor 55 to operate in a forward direction, a dynamic contact of the disc frequency converter operation relay KA11 is closed and transmits the signal to the PLC controller 1, the PLC controller 1 transmits the signal to the remote control display unit 8, displaying the operation of the disc feeder; a manual acceleration button SZS and a manual deceleration button SJS which are arranged on an operation box of the manual operation disk feeder and are used for adjusting the frequency of the frequency converter of the disk feeder, and a given rotating speed is output to the disk motor through the frequency converter of the disk feeder to change the running rotating speed of the disk; when the belt conveyor stops, the local stop button SB2 is pressed, the belt conveyor stops instantly, and N seconds later, the disc feeder stops.
Claims (9)
1. The control method of the disk feeder anti-jamming control system is characterized in that the disk feeder anti-jamming control system comprises a belt conveyor (4) and a disk feeder (5), the belt conveyor (4) comprises a belt conveyor motor (41) and a weighing sensor (42), the disk feeder (5) comprises a material bin (51), a feed opening (52), a disk (53) and a disk motor (55) connected with the disk (53), and the control method is characterized by further comprising a power supply unit, a disk feeder frequency converter (2), a belt conveyor frequency converter (3) and a PLC (1); a foreign matter discharge port (54) is formed in the disc feeder (5); the power supply unit is respectively connected with the disc feeder frequency converter (2), the belt conveyor frequency converter (3), the weighing sensor (42) and the PLC controller (1) through circuits, the disc motor (55) and the belt conveyor motor (41) are respectively connected with the disc feeder frequency converter (2) and the belt conveyor frequency converter (3) through circuits, a disc feeder overload relay (KH1) is arranged on the circuit between the disc feeder frequency converter (2) and the disc motor (55), and the disc feeder frequency converter (2), the belt conveyor frequency converter (3), the weighing sensor (42) and the disc feeder overload relay (KH1) are respectively connected into the PLC controller (1) through circuits;
the control method comprises the following steps: after the power supply unit is closed, various electrical components are powered on, the PLC (1) controls the belt conveyor frequency converter (3) to operate, so that the belt conveyor (4) is controlled to start to operate, meanwhile, the PLC (1) receives a real-time analog signal transmitted by the weighing sensor (42), the real-time analog signal is transmitted to the belt conveyor frequency converter (3) through the PLC (1), the belt conveyor frequency converter (3) automatically completes the setting of the real-time operating frequency of the belt conveyor motor (41) according to the real-time analog signal, outputs a set rotating speed to the belt conveyor motor (41), and drives the belt conveyor (4) to normally operate; meanwhile, after the PLC (1) controls the frequency converter (2) of the disc feeder to be in a power-on ready state and delay designated time, the PLC (1) transmits a real-time analog signal transmitted by the weighing sensor (42) to the frequency converter (2) of the disc feeder, the frequency converter (2) of the disc feeder automatically sets the real-time operation frequency of the disc motor (55) according to the real-time analog signal and outputs a set rotating speed to the disc motor (55), the disc motor (55) is driven to drive the disc (53) to operate in the forward direction and keep synchronous with the rotating speed of the belt conveyor (4), and PID closed-loop automatic adjustment of signals of the weighing sensor (42) and the rotating speeds output by the two frequency converters is realized;
when the material is blocked in the disc feeder (5), the PLC (1) controls the disc feeder frequency converter (2) to drive the disc motor (55) to stop rotating forwards under the action of the disc feeder overload relay (KH1), overload early warning information with set time is sent out at the same time, the PLC (1) controls the disc feeder frequency converter (2) to drive the disc motor (55) to drive the disc (53) to rotate reversely within a specified time which is not longer than the overload early warning information, and foreign materials are removed through the foreign material discharge port (54); after the rotary feeder (5) runs in the reverse direction for a specified time, the rotary feeder is reset through the rotary feeder overload relay (KH1), so that the PLC (1) controls the rotary feeder frequency converter (2) to drive the rotary motor (55) to stop running in the reverse direction, and meanwhile, forward rotation is continued according to the forward running mode, and continuous feeding is realized.
2. The control method of the disk feeder anti-jamming control system according to claim 1, characterized in that the power supply unit comprises a first power supply (QL1) and a second power supply (QL2), the first power supply (QL1) is a three-phase 380V alternating current power supply, the second power supply (QL2) is a 220V alternating current power supply, and the first power supply (QL1) is connected with or separately arranged; the disc feeder frequency converter (2) and the belt conveyor frequency converter (3) are respectively connected with a first power supply (QL1), and the PLC controller (1) and the weighing sensor (42) are respectively connected with a second power supply (QL 2).
3. A control method for a disk feeder anti-jamming control system according to claim 2, characterized in that the disk motor (55) and the belt conveyor motor (41) are respectively provided with a disk motor cooling fan (56) and a belt conveyor motor cooling fan (43), and the disk motor cooling fan (56) and the belt conveyor motor cooling fan (43) are respectively connected with the first power supply (QL1) through lines.
4. A control method of a disk feeder anti-jamming control system according to claim 3, characterized in that an isolation distributor (6) is further arranged on a line connecting the PLC controller (1) and the weighing sensor (42), the isolation distributor (6) is connected with the second power supply (QL2) through a line, and the disk feeder frequency converter (2) is connected with the isolation distributor (6) through a line.
5. A control method of a disk feeder anti-jamming control system according to claim 4, characterized by further comprising a first AC contactor (KM1), a second AC contactor (KM2), a third AC contactor (KM3), a relay control unit (7) and an industrial personal computer remote control display unit (8); the main contacts of the first alternating current contactor (KM1), the second alternating current contactor (KM2) and the third alternating current contactor (KM3) are respectively arranged on the lines of a first power supply (QL1), the disc feeder frequency converter (2), the disc motor cooling fan (56) and the belt conveyor motor cooling fan (43); the relay control unit (7) is connected with a second power supply (QL2) through a line; and a coil and an auxiliary contact of the first alternating current contactor (KM1), a coil and an auxiliary contact of the second alternating current contactor (KM2), a coil and an auxiliary contact of the third alternating current contactor (KM3), a relay control unit (7) and an industrial personal computer remote control display unit (8) are respectively connected to the PLC (1) through circuits.
6. The control method of the disk feeder anti-jamming control system according to claim 5, characterized by further comprising a disk frequency converter operation relay (KA11), a disk frequency converter jamming automatic operation relay (KA01), a belt conveyor frequency converter operation relay (KA21) and a system operation relay (PLCJ), wherein coils of the four relays are respectively connected with the PLC controller (1) through lines; the industrial personal computer remote control display unit (8) comprises a system remote start button (SB3) and a system remote stop button (SB 4); the relay control unit (7) comprises a disc frequency converter allowed starting relay (KA), a system automatic given signal relay (KAQ2), a disc frequency converter delayed forward transmission time relay (KT11), a material blocking delayed reverse rotation time relay (KT01) and a power supply normal relay (KA 3); a coil of the power supply normal relay (KA3) is connected with a first power supply (QL1) and a second power supply (QL2) in series through a line, and a dynamic contact of the power supply normal relay is connected into the PLC (1) through the line; the dynamic contact of the system operation relay (PLCJ) is connected with a coil of the system automatic given signal relay (KAQ2) in series and connected with a second power supply (QL2), and the dynamic contact of the system automatic given signal relay (KAQ2) is connected into a disc feeder frequency converter (2) and a belt conveyor frequency converter (3) through lines respectively; the disc frequency converter allows a coil of the starting relay (KA) to be connected with an output end of the belt conveyor frequency converter (3) in series and connected with a second power supply (QL2), and a dynamic contact of the disc frequency converter is connected with the PLC (1) through a line; a movable contact of the belt conveyor frequency converter operation relay (KA21) is connected into the belt conveyor frequency converter (3) through a line; a dynamic contact of the automatic material blocking operation relay (KA01) of the disc frequency converter is connected into the PLC (1) through a line; an auxiliary contact of the second alternating current contactor (KM2), a break contact of a disk feeder overload relay (KH1) and a coil of a disk frequency converter delayed forward transmission time relay (KT11) are connected in series and connected to a second power supply (QL 2); a moving contact of the disk feeder overload relay (KH1), a moving contact of the disk frequency converter operation relay (KA11) and a coil of the material clamping delay reversal time relay (KT01) are connected in series and connected with a second power supply (QL 2); the dynamic contact and the dynamic contact of the disc frequency converter operation relay (KA11) are respectively connected into the PLC controller (1) and the disc feeder frequency converter (2) through lines, and the dynamic contact of the disc frequency converter material clamping automatic operation relay (KA01) are connected in series and are connected into the disc feeder frequency converter (2); the normally open contact of the disc frequency converter time delay forward transmission time relay (KT11) and the normally open contact of the material blocking time delay reverse transmission time relay (KT01) are respectively connected into the PLC controller (1) through circuits.
7. The control method of the disk feeder anti-jamming control system according to claim 6, characterized in that the disk feeder overload relay (KH1) is an automatic reset type overload relay.
8. A control method of a disk feeder anti-jamming control system according to claim 6 or 7, characterized in that a selection Switch (SA) and a local control unit (9) are further connected to the PLC controller (1), and the selection Switch (SA) realizes the functions of remote control and local control of the system; the local control unit (9) comprises a local start button (SB1) and a local stop button (SB 2).
9. The control method of the anti-jamming control system of the disk feeder according to claim 8, characterized in that a manual acceleration button (SZS) and a manual deceleration button (SJS) are arranged on the frequency converter (2) of the disk feeder and the frequency converter (3) of the belt conveyor; the system is characterized in that a break contact of an automatic given signal relay (KAQ2) is respectively connected with a manual acceleration button (SZS) and a manual deceleration button (SJS) on a disk feeder frequency converter (2) and a belt conveyor frequency converter (3) in series and then connected with the disk feeder frequency converter (2) and the belt conveyor frequency converter (3).
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| CN113548418B (en) * | 2021-07-28 | 2023-04-28 | 广东康派环创科技有限公司 | Button sewing machine feeding system, method and device, computer equipment and storage medium |
| CN113968462A (en) * | 2021-10-18 | 2022-01-25 | 安庆帝伯粉末冶金有限公司 | Valve guide pipe conveying anti-blocking device and anti-blocking method |
| CN114123937B (en) * | 2021-10-22 | 2024-04-09 | 衢州元立金属制品有限公司 | Smooth conversion method for realizing manual and automatic PID adjustment |
| CN114345535B (en) * | 2021-12-29 | 2023-09-22 | 福建华纵机械有限公司 | Electrical control system and control method of breaker |
| CN115218639A (en) * | 2022-06-08 | 2022-10-21 | 河钢承德钒钛新材料有限公司 | Method for intelligently producing tablet vanadium based on expert control system |
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| GB875939A (en) * | 1958-07-01 | 1961-08-23 | Eugene Adam Wahl | Improvements in or relating to methods and apparatus for dispensing granular material |
| CN103318631A (en) * | 2013-07-15 | 2013-09-25 | 新兴河北工程技术有限公司 | Speed control device of disk feeder |
| CN203806576U (en) * | 2014-04-17 | 2014-09-03 | 天津钢铁集团有限公司 | Disk feeding device |
| CN204250875U (en) * | 2014-11-14 | 2015-04-08 | 朝阳易通重型机械有限公司 | Anti-blocking disk feeder |
| CN209192944U (en) * | 2018-09-13 | 2019-08-02 | 白银有色集团股份有限公司 | A kind of silver furnace feeding system being precisely controlled feeding amount |
| CN109062134A (en) * | 2018-09-20 | 2018-12-21 | 安徽马钢设备检修有限公司 | A kind of novel four-roller is crushed electric-control system and control method |
| CN214494953U (en) * | 2021-04-02 | 2021-10-26 | 安徽马钢设备检修有限公司 | Disk feeder anti-blocking control system |
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