CN107153402A - A kind of packaging bag forming machine controller - Google Patents
A kind of packaging bag forming machine controller Download PDFInfo
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- CN107153402A CN107153402A CN201710586168.9A CN201710586168A CN107153402A CN 107153402 A CN107153402 A CN 107153402A CN 201710586168 A CN201710586168 A CN 201710586168A CN 107153402 A CN107153402 A CN 107153402A
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- packaging bag
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- forming machine
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
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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]
Abstract
The present invention is a kind of packaging bag forming machine controller, and its structure includes microcontroller, sensor assembly, A photoelectric isolation modules, B photoelectric isolation modules, human-computer interaction module, motor drive module, solenoid valve control module, relay module, wireless transport module；Wherein, sensor assembly is connected with A photoelectric isolation modules, A photoelectric isolation modules are connected with the signal input part of microcontroller, the signal output part of microcontroller is connected with the signal input part of B photoelectric isolation modules, B photoelectric isolation modules are connected with motor drive module, solenoid valve control module, relay module respectively, human-computer interaction module is connected with the first signal input output end of microcontroller, and wireless transport module is connected with the secondary signal input/output terminal of microcontroller.Advantage：1）From ARM32 embedded microprocessors, real-time operation speed is fast, saves memory headroom；2）Controller processing speed is high, real-time；3）Man-machine interaction, to be wirelessly transferred cost of implementation low.
Description
Technical field
The present invention relates to a kind of packaging bag forming machine controller, belong to mechanical automatically controlled systems technology field.
Background technology
At present, all kinds of packaging bags are in daily life using very generally, and packaging bag forming machinery turns into packaging industry
Generally use and highly important industrial machinery, and the package packing machine for flexible packages is then one important
Branch, the various fields such as medicine, chemical industry, food application widely；The bag maker of making machine of plastic film packaging bag tool
Skill is according to plastics thermoplasticity, including the link such as traction, feeding, heat-sealing, punching, and most packaging bag is made in packing film at last, common
The main transmission of flexible package shape bag forming machine includes feeding, haulage gear, and haulage gear is moved by deflector roll and pressure roller tracting film,
To prevent tractive force is excessive from causing film elongation to deform, feed mechanism coordinates haulage gear complete by corresponding deflector roll and pressure roller
Into film feeding；Between feed mechanism and haulage gear, dancer, tension of engagement sensor, it is ensured that film are generally fitted with
All the time it is in constant-tension state；In bag making process, thin-film material folding forming first；Then, after traction, localization process, by
Scald row and cutter mechanism performs heat-sealing and cuts bag action；When finished product sack number reaches preset number, by sending bag mechanism by finished product
Bag is sent out；In addition, deviation correcting device can be used for whether detection packaging film width traffic direction deviation occurs so as to adjustment in time, it is ensured that
Bag precision.
Packaging bag forming machine electric-control system is the core of packaging bag forming machine, for ensureing being smoothed out for technological process；
Packaging bag forming machine electric-control system core controller common at present uses PLC（Programmable logic controller (PLC)）, industrial computer or list
Piece machine three types；Wherein PLC advantages and using commonplace, for example：Reliability is high, simple, easy using flexible, programming
In maintenance, but PLC delay phenomenon, than more serious, real-time treatment effect is not good, and country PLC is mostly by external product
Board, use cost is higher；The interference free performance of industrial computer is more satisfactory, available for the place of some bad environments, but industry control
The cost of machine is higher, the application software based on operating system, and processing data real-time is inadequate, Information Security is poor；Single-chip microcomputer
Cheap, development difficulty is low, flexibility is high, but the relatively slow, wireless telecommunications of single-chip data disposal ability shortcoming, processing speed are opened
Hair is more difficult.
In the last few years, ARM embeded processors developed very rapid, its reduced instruction set computer（RISC）It is simple in construction, efficient；
High-performance, low cost, the control system of low-power consumption can be designed using ARM.In addition, the word length of arm processor, arithmetic speed
Improve constantly, be also equipped with the wave points such as WiFi, bluetooth；It is respectively provided with terms of processing speed, development cost, flexibility
Some superiority, combination property is dominant.The present invention is exactly on the basis of analysis conventional plastic film packaging bag forming machine operation principle
On, a kind of packaging bag forming machine controller based on ARM Embedded Processors.
The content of the invention
Proposed by the present invention is a kind of packaging bag forming machine controller, and its purpose aims to solve the problem that existing packaging bag forming machine control
The real-time treatment effect of device processed is not good, cost is high, processing data real-time is inadequate, Information Security is poor, processing speed relatively slow, nothing
The problems such as line communication is more difficult.
The technical solution of the present invention：Packaging bag forming machine controller, its structure includes microcontroller, sensor die
Block, A photoelectric isolation modules, B photoelectric isolation modules, human-computer interaction module, motor drive module, solenoid valve control module, relay
Device module, wireless transport module；Wherein, the signal input part phase of the signal output part of sensor assembly and A photoelectric isolation modules
Even, the signal output part of A photoelectric isolation modules is connected with the signal input part of microcontroller, the signal output part of microcontroller and
The signal input parts of B photoelectric isolation modules is connected, the signal output parts of B photoelectric isolation modules respectively with motor drive module, electricity
Magnet valve control module, the signal input part of relay module are connected, the signal input output end and microcontroller of human-computer interaction module
First signal input output end of device is connected, and the signal input output end of wireless transport module and the secondary signal of microcontroller are defeated
Enter output end to be connected.
Advantages of the present invention：
1）From ARM32 position embedded microprocessors, real-time operation speed is fast, saves memory headroom, and motor operation curve is put down
It is sliding；
2）Controller processing speed is high, real-time；
3）Man-machine interaction, to be wirelessly transferred cost of implementation low；
4）Management platform can be logged in by computer or mobile terminal whenever and wherever possible, realize the production schedule instruction of level of factory, workshop level
Assign, the Field Production Data of each Bag Making Machine collects, equipment running status detection etc. function.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of packaging bag forming machine controller.
Embodiment
Packaging bag forming machine controller, its structure includes microcontroller, sensor assembly, A photoelectric isolation modules, B photoelectricity
Isolation module, human-computer interaction module, motor drive module, solenoid valve control module, relay module, wireless transport module；Its
In, the signal output part of sensor assembly is connected with the signal input part of A photoelectric isolation modules, the signal of A photoelectric isolation modules
Output end is connected with the signal input part of microcontroller, and the signal of the signal output part and B photoelectric isolation modules of microcontroller is defeated
Enter end to be connected, the signal output parts of B photoelectric isolation modules respectively with motor drive module, solenoid valve control module, relay mould
The signal input part of block is connected, the signal input output end of human-computer interaction module and the first signal input output end of microcontroller
It is connected, the signal input output end of wireless transport module is connected with the secondary signal input/output terminal of microcontroller.
The microcontroller is the core of packaging bag forming machine controller, the data for receiving sensor assembly collection,
Carry out after analysis calculating, and then controlled motor drive module, solenoid valve control module, relay module, while being responsible for man-machine friendship
Interoperability, data display and wireless data transmission；Microcontroller preferentially uses ARM32 embedded microprocessors, such as：ARM
Cortex-A8。
Industry spot working environment is more severe, and interference signal is more and strong, it is therefore desirable to will be micro- by photoelectric isolation module
Controller and peripheral circuit module isolation, realize Phototube Coupling, include the Phototube Coupling of input signal and output signal；The bag
A photoelectric isolation modules and B photoelectric isolation modules have been used in pack shaping machine controller；The preferential normal light of A photoelectric isolation modules
Common optical coupler TLP521 in coupling TLP521, A photoelectric isolation module is in the signal output part and microcontroller of sensor assembly
Signal input part between；B photoelectric isolation modules include common optical coupler TLP521 and high speed photo coupling 6N137, B Phototube Coupling mould
Common optical coupler TLP521 in block is in the signal output part of microcontroller and solenoid valve control module signal, relay module
Between signal input part, the signal of signal output part and motor drive module that high speed photo coupling 6N137 is in microcontroller is inputted
Between end.
Realize that Phototube Coupling is particularly suited for the relatively low switching signal of frequency such as sensor die from common optical coupler TLP521
Block signal, solenoid valve control module signal and relay module signal；High speed photo coupling 6N137 is particularly suited for the pulse letter of high speed
Number such as motor drive module control signal；It is more beneficial for being lifted the overall performance of packaging bag forming machine controller.
The sensor assembly includes color mark sensor, high position sensor, tension sensor, deflection correction sensor；Wherein, color
Mark the Color mark signal on sensor detection plastic sheeting, sealing and positioning for packaging bag, the preferred model of color mark sensor
For Keyemce CZ type photoelectricity color mark sensors；High position sensor is used to detect the mechanical dancer position of packaging bag forming, it is ensured that floating
Dynamic roller floats in allowed band, it is ensured that the membrane tension between deflector roll and carrying roller is constant, the preferred model of high position sensor
Shanghai work LJ12A3 shield type Hall sensors；Microprocessor coordinates high position sensor signal according to the pulling bag length of calculating, realizes
Cutter location judges that control traction electric machine sends out the packaging bag of shaping；Tension sensor realizes feeding motor and traction electric machine
Synchronous velocity control, it is ensured that the plastic sheeting equalization of strain between carrying roller and traction electric machine pressure roller, tension sensor it is preferred
Model plum Teller-support benefit MT10 type gravity sensors；Deflection correction sensor is made up of optoelectronic switch, detection film edge position
Put, the correction for film is controlled, river RLK161 type photoelectric rectification sensors in the preferred model of deflection correction sensor.
The human-computer interaction module uses graphic control panel, total by MODBUS between human-computer interaction module and microcontroller
Line carries out data interaction, and the control such as parameter setting, startup, stopping can be achieved；It can show that bag is long, bag number in real time simultaneously
The parameters such as amount, temperature, speed.
The motor drive module includes motor servo driver, AC motor drive, synchronous motor driver；Its
In, motor servo driver drives the servomotor of feeding and haulage gear to complete plastic sheeting according to the instruction of control module
Feeding, traction function, deviation correction mechanism servomotor according to deflection correction sensor signal realize packaging film position deviation correct；Exchange
Motor driver is according to the instruction of control module, and driving alternating current generator is realized to scald to arrange and pumped with cutting knife, completes packaging
Bag heat-sealing and cut a bag function；Synchronous motor driver controls synchronous translator to complete to specify according to the instruction of control module
The finished bag of quantity is removed and cut at envelope, in order to collect and arrange；The AC motor drive is also known as frequency converter.
The solenoid valve control module is used for the magnetic valve for driving the upper each position of packaging bag forming machinery, completes pressure roller, support
Roller lift and pressure action, and shaping packaging bag on puncture motion.
The relay module is used for when system jam, is instructed according to control module, drives alarm control circuit
Send alarm.
The wireless transport module is to be wirelessly transferred form, by each packaging bag forming machine operating personnel job number, bag
The floor datas such as type, bag quantity, running status are sent to workshop management center in real time, support mobile phone mobile terminal to check, institute
State the preferred WiFi radio network techniques of the form of being wirelessly transferred.
The control function of the packaging bag forming machine controller includes parameter setting, data display, start-up and shut-down control, quantity system
Meter, process control, data upload control；The process control includes motor speeding up or down process, membrane tension stability contorting, correction
Control, seal control, cut-sytle pollination, give bag to control etc..
The control method of the motor speeding up or down process of the packaging bag forming machine controller includes：
1）The motor lifting speed curve that packaging bag forming machine controller is used is exponential curve, servomotor running frequency
It is expressed as：
(1)
In formula (1)Represent initiation culture；Represent maximum frequency of operation；Represent proportionality coefficient；Represent servomotor liter
Step number needed for fast；Speed coefficient is represented,Smaller, raising frequency speed is bigger；Conversely, then raising frequency speed is smaller；According to actual conditions
Determine proportionality coefficientWith speed coefficientSpecific value；
2）Time interval between adjacent pulse is obtained by formula (1)For：
(2)
2）Time interval between adjacent pulse is obtained by formula (1)For：
(2)
Assuming that pulse sum is needed for servomotor boosting velocity procedure, then whenWhen, proportionality coefficientSelection should expire
Foot；Speed coefficientSelection should meet：When, climb curveDerivative level off to zero,
Down speeding procedure is the inverse process of boosting velocity procedure.
Motor speeding up or down process purpose is to ensure that servomotor does not lose step and packaging bag fixed length cutting precision；In addition,
The excellent motor lifting short-cut counting method can also make full use of motor effective torque, and then improve feeding and hauling speed；Usual feelings
Under condition, servomotor lifting speed curve can select sine curve or exponential curve, and two kinds of curves are not linear, Traditional Packings
Shape bag forming machine controller is limited by computing resource limitation, many to obtain curve data using lookup table mode, if curve data is sampled
Overstocked, then the list data that generates takes a large amount of control module memory spaces, and if curve data sampling density not enough, then shadow
Ring the smoothness of motor lifting speed curve；Control module of the present invention is utilized using ARM32 serial embedded microprocessors
Calculation function powerful ARM, completes the real-time calculating of curve data, is not take up controller memory space, realizes any on curve
Calculation of points, smoothness is good.
The control method of the membrane tension stability contorting of the packaging bag forming machine controller includes：
Ideally, feeding motor should be consistent with the stroke pulse number that traction electric machine is received in bag making process, but
Because the factors such as mechanical friction, film skidding influence, under actual conditions, the number of pulses of traction electric machine is greater than feeding motor
Number of pulses, may be defined as " missing pulse number "；Assuming that bag length is, the pulse equivalency of traction electric machine is, then required arteries and veins
Rush numberIt is expressed as：
(3)
Required total time is represented by：
(4)
Assuming that " missing pulse number " is, then pulse number is needed for feeding motor, while can be drawn,
The difference in feeding motor pulse spacing：
(5)
Convolution (4) and (5) can obtain the pulse interval of feeding motor：
(6)
In bag making process, the control module based on ARM can be according to the highly automated regulation " missing pulse number " of dancer, utilize height
Level sensor judges dancer position, if dancer rises, and needs to reduce；If dancer is reduced, increase is needed
, in this way, then ensureing that dancer is always positioned near high position sensor, reduce the stroke that moves up and down of dancer, guarantor to greatest extent
Hold constant tension.
The constant coordination depending on the two of membrane tension, is asked to solve this between feeding motor and traction electric machine
Topic, is provided with dancer to ensure constant tension between two motors；Traditional control method is limited by control module and handled in real time
Scarce capacity, it is general to be maintained using high-order, two sensor definition dancers of low level in certain scope, realize the base of tension force
This is constant；But in practical application, influenceed by the factor such as film " pullling ", deflector roll diameter deviation, friction, " skidding ", on dancer
Lower shift motion is bigger than normal to cause membrane tension to produce fluctuation, influence bag quality；And mechanical erection structure and sensor sensing
Scope determines that high-order and two sensors of low level can not be mounted so as to be too near to again；Controller of the present invention makes full use of ARM powerful
Computing function, realize only use a high position sensor, complete dancer minor shifts control.
The data of the packaging bag forming machine controller upload control：Microcontroller is using the ARM32 for possessing Wifi interfaces
Position embedded microprocessor, without wiring, can make each Bag Making Machine in workshop turn into a section in WLAN
Point, authorized director can log in management platform by computer or mobile terminal whenever and wherever possible, realize level of factory, workshop level
The functions such as production schedule instruction issuing, the Field Production Data of each Bag Making Machine collect, equipment running status detection.
Current packaging bag forming machine controller common on the market is in the following two kinds state in terms of data upload：
（1）There is no data upload function completely：Unit independent operating is, it is necessary to what the operating personnel of every machine assigned according to workshop
Task index, is independently arranged the operational factor of every controller, manually sends a duplicate to daily task performance；
（2）Data upload function is realized using wire communication pattern：Some existing bag machine controllers employ PLC, industry control
Machine is used as kernel control module, it is possible to use the wire communication mode such as the industrial field bus such as RS485, ProfiBUS or LAN
To constitute Distributed Control System, the real-time running state and creation data of each Bag Making Machine are gathered；But, because packaging bag at present
Manufacture profit it is very cheap, existing manufacturing enterprise is substantially based on the Sole Proprietorship of middle and small scale, and it is collecting and distributing control system
The construction cost of system is higher, and wiring is complicated, control model in this form almost do not have in packaging bag production industry；
In recent years, with the popularization of intelligent mobile terminal and Wi-Fi hotspot, the Mobile solution based on WiFi is being built and used into
Significantly decline in sheet；The use of packaging bag forming machine controller core control module of the present invention, i.e. microcontroller possesses Wifi and connect
The ARM32 positions embedded microprocessor of mouth, without wiring, can be such that each Bag Making Machine in workshop turns into WLAN
A node, authorized director can log in management platform by computer or mobile terminal whenever and wherever possible, realize level of factory,
The functions such as the production schedule instruction issuing of workshop level, the Field Production Data of each Bag Making Machine collect, equipment running status detection.
Embodiment 1
Packaging bag forming machine controller, its structure has microcontroller, sensor assembly, A photoelectric isolation modules, B Phototube Coupling moulds
Block, human-computer interaction module, motor drive module, solenoid valve control module, relay module, wireless transport module composition；Wherein,
The signal output part of sensor assembly is connected with the signal input part of A photoelectric isolation modules, the signal output of A photoelectric isolation modules
End is connected with the signal input part of microcontroller, the signal output part of microcontroller and the signal input part of B photoelectric isolation modules
Be connected, the signal output parts of B photoelectric isolation modules respectively with motor drive module, solenoid valve control module, relay module
Signal input part is connected, the signal input output end of human-computer interaction module and the first signal input output end phase of microcontroller
Even, wireless transport module is connected with the secondary signal input/output terminal of microcontroller.
The microcontroller is the core of packaging bag forming machine controller, the data for receiving sensor assembly collection,
Carry out after analysis calculating, and then controlled motor drive module, solenoid valve control module, relay module, while being responsible for man-machine friendship
Interoperability, data display and wireless data transmission；Microcontroller uses the embedded place that declines in model Cortex-A8 ARM32 positions
Manage device.
A photoelectric isolation modules and B photoelectric isolation modules have been used in the packaging bag forming machine controller；A Phototube Couplings
The signal that common optical coupler TLP521 in the preferential common optical coupler TLP521 of module, A photoelectric isolation modules is in sensor assembly is defeated
Go out between end and the signal input part of microcontroller；B photoelectric isolation modules have common optical coupler TLP521 and high speed photo coupling 6N137,
Common optical coupler TLP521 in B photoelectric isolation modules be in the signal output part of microcontroller and solenoid valve control module signal,
Between the signal input part of relay module, high speed photo coupling 6N137 is in the signal output part of microcontroller and motor drives mould
Between the signal input part of block.
The sensor assembly by color mark sensor, high position sensor, tension sensor, deflection correction sensor, constitute；Its
In, the model Keyemce CZ type photoelectricity color mark sensors of color mark sensor；The model Shanghai work LJ12A3 screens of high position sensor
Cover type Hall sensor；The model plum Teller of tension sensor-support benefit MT10 type gravity sensors；The type of deflection correction sensor
Number be middle river RLK161 type photoelectric rectification sensors.
The human-computer interaction module uses graphic control panel, total by MODBUS between human-computer interaction module and microcontroller
Line carries out data interaction.
The motor drive module is made up of motor servo driver, AC motor drive, synchronous motor driver；Its
In, motor servo driver is connected with servomotor, AC motor drive and alternating current generator connection, synchronous motor driver with
Conveyer belt motor connection.
The solenoid valve control module is used for the magnetic valve for driving the upper each position of packaging bag forming machinery, completes pressure roller, support
Roller lift and pressure action, and shaping packaging bag on puncture motion.
The relay module is used for when system jam, is instructed according to control module, drives alarm control circuit
Send alarm.
The form that is wirelessly transferred of the wireless transport module is WiFi radio network techniques.
The packaging bag forming machine controller can realize parameter setting, data display, start-up and shut-down control, quantity statistics, mistake
Process control, data upload control；The process control include motor speeding up or down process, membrane tension stability contorting, correction control,
Seal control, cut-sytle pollination, give bag to control etc..
The control method of the motor speeding up or down process is as follows：
1）The motor lifting speed curve that packaging bag forming machine controller is used is exponential curve, servomotor running frequencyTable
It is shown as：
(1)
In formula (1)Represent initiation culture；Represent maximum frequency of operation；Represent proportionality coefficient；Represent servomotor liter
Step number needed for fast；Speed coefficient is represented,Smaller, raising frequency speed is bigger；Conversely, then raising frequency speed is smaller；According to actual conditions
Determine proportionality coefficientWith speed coefficientSpecific value；
2）Time interval between adjacent pulse is obtained by formula (1)For：
(2)
Assuming that pulse sum needed for servomotor raising frequency process is, then whenWhen, proportionality coefficientSelection should expire
Foot；Speed coefficientSelection should meet：When, climb curveDerivative level off to zero,
Down speeding procedure is the inverse process of boosting velocity procedure.
The control method of the membrane tension stability contorting is as follows：
Ideally, feeding motor should be consistent with the stroke pulse number that traction electric machine is received in bag making process, but
Because the factors such as mechanical friction, film skidding influence, under actual conditions, the number of pulses of traction electric machine is greater than feeding motor
Number of pulses, may be defined as " missing pulse number "；Assuming that bag length is, the pulse equivalency of traction electric machine is, then required arteries and veins
Rush numberIt is expressed as：
(3)
Required total time is represented by：
(4)
Assuming that " missing pulse number " is, then pulse number is needed for feeding motor, while can be drawn,
The difference in feeding motor pulse spacing：
(5)
Convolution (4) and (5) can obtain the pulse interval of feeding motor：
(6)
In bag making process, the control module based on ARM can be according to the highly automated regulation " missing pulse number " of dancer, utilize height
Level sensor judges dancer position, if dancer rises, and needs to reduce；If dancer is reduced, increase is needed
, in this way, then ensureing that dancer is always positioned near high position sensor, reduce the stroke that moves up and down of dancer, guarantor to greatest extent
Hold constant tension.
The data upload control：, can without wiring using the ARM32 positions embedded microprocessor for possessing Wifi interfaces
So that each Bag Making Machine in workshop turns into a node in WLAN, authorized director can be whenever and wherever possible
Management platform is logged in by computer or mobile terminal, level of factory, the production schedule instruction issuing of workshop level, each Bag Making Machine is realized
The function such as Field Production Data collects, equipment running status are detected.
Claims (8)
1. packaging bag forming machine controller, it is characterized in that including microcontroller, sensor assembly, A photoelectric isolation modules, B photoelectricity
Isolation module, human-computer interaction module, motor drive module, solenoid valve control module, relay module, wireless transport module；Its
In, the signal output part of sensor assembly is connected with the signal input part of A photoelectric isolation modules, the signal of A photoelectric isolation modules
Output end is connected with the signal input part of microcontroller, and the signal of the signal output part and B photoelectric isolation modules of microcontroller is defeated
Enter end to be connected, the signal output parts of B photoelectric isolation modules respectively with motor drive module, solenoid valve control module, relay mould
The signal input part of block is connected, the signal input output end of human-computer interaction module and the first signal input output end of microcontroller
It is connected, the signal input output end of wireless transport module is connected with the secondary signal input/output terminal of microcontroller.
2. packaging bag forming machine controller according to claim 1, it is characterized in that the sensor assembly is passed including colour code
Sensor, high position sensor, tension sensor, deflection correction sensor.
3. packaging bag forming machine controller according to claim 1, it is characterized in that the human-computer interaction module is using industry
Touch-screen, data interaction is carried out between human-computer interaction module and microcontroller by MODBUS buses.
4. packaging bag forming machine controller according to claim 1, it is characterized in that the motor drive module includes servo
Motor driver, AC motor drive, synchronous motor driver.
5. packaging bag forming machine controller according to claim 1, it is characterized in that the control function that can be realized includes ginseng
Number setting, data display, start-up and shut-down control, quantity statistics, process control, data upload control；The process control includes motor
Speeding up or down process, membrane tension stability contorting, correction control, seal control, cut-sytle pollination, send a bag control.
6. packaging bag forming machine controller according to claim 5, it is characterized in that the method for the motor speeding up or down process
Including：
1）The motor lifting speed curve that packaging bag forming machine controller is used is exponential curve, servomotor running frequencyTable
It is shown as：
(1)
In formula (1)Represent initiation culture；Represent maximum frequency of operation；Represent proportionality coefficient；Represent servomotor liter
Step number needed for fast；Speed coefficient is represented,Smaller, raising frequency speed is bigger；Conversely, then raising frequency speed is smaller；According to actual conditions
Determine proportionality coefficientWith speed coefficientSpecific value；
2）Time interval between adjacent pulse is obtained by formula (1)For：
(2)
Assuming that pulse sum is needed for servomotor boosting velocity procedure, then whenWhen, proportionality coefficientSelection should meet；Speed coefficientSelection should meet：When, climb curveDerivative level off to zero, drop
Fast process is the inverse process of boosting velocity procedure.
7. packaging bag forming machine controller according to claim 5, it is characterized in that the side of the membrane tension stability contorting
Method includes：
Ideally, feeding motor should be consistent with the stroke pulse number that traction electric machine is received in bag making process, but
Because the factors such as mechanical friction, film skidding influence, under actual conditions, the number of pulses of traction electric machine is greater than feeding motor
Number of pulses, may be defined as " missing pulse number "；Assuming that bag length is, the pulse equivalency of traction electric machine is, then required arteries and veins
Rush numberIt is expressed as：
(3)
Required total time is represented by：
(4)
Assuming that " missing pulse number " is, then pulse number is needed for feeding motor, while can be drawn, be sent
Expect the difference at motor pulses interval：
(5)
Convolution (4) and (5) can obtain the pulse interval of feeding motor：
(6)
In bag making process, the control module based on ARM can be according to the highly automated regulation " missing pulse number " of dancer, utilize height
Level sensor judges dancer position, if dancer rises, and needs to reduce；If dancer is reduced, increase is needed
, in this way, then ensureing that dancer is always positioned near high position sensor, reduce the stroke that moves up and down of dancer, guarantor to greatest extent
Hold constant tension.
8. packaging bag forming machine controller according to claim 5, it is characterized in that the data upload control：Microcontroller
Using the ARM32 positions embedded microprocessor for possessing Wifi interfaces, without wiring, each Bag Making Machine in workshop is set to turn into nothing
A node in line LAN, authorized director logs in management platform by computer or mobile terminal whenever and wherever possible, real
Existing level of factory, the production schedule instruction issuing of workshop level, the Field Production Data of each Bag Making Machine collect, equipment running status detection
Function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710586168.9A CN107153402B (en) | 2017-07-18 | 2017-07-18 | Controller of packaging bag forming machine |
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| CN201710586168.9A CN107153402B (en) | 2017-07-18 | 2017-07-18 | Controller of packaging bag forming machine |
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| CN107153402A true CN107153402A (en) | 2017-09-12 |
| CN107153402B CN107153402B (en) | 2023-04-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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