CN108100376A - A kind of intelligent medicament packing machine based on PLC - Google Patents
A kind of intelligent medicament packing machine based on PLC Download PDFInfo
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- CN108100376A CN108100376A CN201611045030.XA CN201611045030A CN108100376A CN 108100376 A CN108100376 A CN 108100376A CN 201611045030 A CN201611045030 A CN 201611045030A CN 108100376 A CN108100376 A CN 108100376A
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- China
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- plc
- packing machine
- smart
- machine based
- intelligent medicament
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
To improve the efficiency and precision of packing machine, a kind of intelligent medicament packing machine based on PLC has been invented.The packing machine is attached most importance to Serve Motor Control and shift control, with reference to the display of 700 IE of touch-screen SMART, parameter setting and monitoring function, realizes controllability, the visualization of packaging process.After tested, which meets all technical of intelligent medicament packing machine, stable good.
Description
Technical field
The present invention relates to a kind of packing machine more particularly to a kind of intelligent Key works Drug packings based on S7-200 SMART PLC
Machine.
Background technology
Medicament packing machine is the comprehensive stronger engineering goods of electromechanical integration, although the domestic drug box packing machine in China exists
Quick development is obtained in recent ten years, but its problems faced is still many.With current pharmaceutical production management practices
(CGMP) requiring the control quality of production procedure increases, and a pharmaceutical manufacturing process more automated becomes key.Improve bag
The speed and control accuracy of installation are the development side of Packaging Machinery in Our Country urgent problem to be solved and package packing machine from now on
To.Medicament packing machine is not only completed servomotor switch crawl and automatically controls, and to carry out photoelectricity positioning, speed is shown,
The controls such as product counting, bad part eject.It can not only improve work efficiency, reduce the cost of labor of packaging, can also improve and defend
Unboiled water is put down, and is widely used in Key works Drug packing industry.
IMATIC S7-200 SMART are that Siemens Company investigates by mass market, are that Chinese customer is customized
High performance-cost ratio small PLC product.Product and SIMATIC man-machine interface products are driven with reference to SINAMICS, with S7-200
SMART is that the small automatic solution of core will be that Chinese customer creates more values.Brand-new S7-200 SMART
Bring two distinct types of CPU modules, standard type and economical, comprehensive different industries, different clients, the difference of meeting is set
Standby various demands.Standard type is as expansible CPU modules, and can meet has larger demand to I/O scales, and logic control is more
Complicated application；And economical CPU modules directly meet relatively simple demand for control by unit body.
The content of the invention
The purpose of the invention is to improve the efficiency of medicament packing machine and precision, devise a kind of based on S7-200
The intelligent medicament packing machine of SMART PLC.
The technical solution adopted by the present invention to solve the technical problems is：
Intelligent medicament packing machine based on S7-200 SMART PLC is mainly by siemens PLC SMART PLC, Siemens
The compositions such as SMART-700 IE touch-screens, servomotor, photoelectric sensor, close switch, vacuum valve, solenoid valve, have automatic
Detection function has high friendly man-machine interface, mounted box speed, automatic running and debugs two kinds of operational modes by hand.
The main servo motor, drug dispensing servomotor, vacuum pump, vacuum valve, cylinder, photoelectric detection switch, close to opening
Pass etc. is all controlled by master controller PLC.
The PLC selects siemens PLC SMART PLC, CPU model ST60, using NPN type sensor,
Therefore public termination+24V.
The control system of the packing machine selects Siemens's SMART-700 IE touch-screens to realize and runs progress to equipment
Monitoring and prompting, complete system parameter setting, and to alarming during equipment fault.
The packing machine control system uses SIEMENS PLC special-purpose software STEP 7-MicroWIN SMART into stroke
Sequence is worked out.
The design of the touch screen interface is realized by Wincc.
The beneficial effects of the invention are as follows：
Intelligent medicament packing machine based on S7-200 SMART PLC by the use of the PLC of high reliability as control system core, with
Increasingly mature sensor technology, servomotor, human-computer interaction touch screen technology.Experiments verify that the packing machine is stable,
Functional, servomotor accurate positioning is rapid, and detection is errorless.Meanwhile touch-screen can detect the operation shape of packing machine in real time
Condition completes property indices.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is packing machine structure chart.
Fig. 2 is PLC external wiring diagrams.
Fig. 3 is work flow diagram.
Specific embodiment
As shown in Figure 1, automatic box packing machine is mainly touched by siemens PLC SMART PLC, Siemens SMART-700 IE
Touch the compositions such as screen, servomotor, photoelectric sensor, close switch, vacuum valve, solenoid valve.Its operation principle is as follows：Packing machine control
Two servomotors are made, main motor drives entire package packing machine movement, and drug dispensing servomotor then drives drug dispensing device to put drug
Into in drug conveying boat；To improve production efficiency, using the blanking simultaneously of two feed bins.Detection device photoelectric sensor detects defeated
Send the drug in ship, control vacuum valve inhales lower specification, is transmitted to after paper folder folds and medicine plate, the parallel slot of medicine box
It is interior, same medicine plate is waited to be pushed into medicine box together；Be delayed certain station, and control vacuum valve inhales next carton from article storage rack, then
Unscrew is transported to before medicine plate and specification, and after push rod is by specification and medicine plate push-in box, box carrier chain drives medicine
Box carries out jacket while movement, and while medicine box is sent to the discharge port of machine, relevant position is bent over, folds, fills in
Real, box is sealed completely；To realize the versatility of medicament packing machine, more plate medicines are filled sometimes in a box medicine, this may occur
The situation of medicine or multiple medicine is lacked, therefore after detecting medicine, the quantity of medicine is also detected, if lacking medicine or multiple medicine, the station that is delayed is rejected；
Simultaneously tally function is realized equipped with photoelectric sensor above conveyer belt；Cylinder realizes bad part eject function.This completes whole
A packaging process, realize medicine plate prescribe medicine, inhale box, inhale specification, foldings, jacket, counting, rejecting automatically control.
As shown in Fig. 2, main servo motor, drug dispensing servomotor, vacuum pump, vacuum valve, cylinder, photoelectric detection switch, connecing
Nearly switch etc. is all controlled by master controller PLC.PLC is a kind of industrial computer, it have modular construction, it is easy to operate, can
The features such as by property height, strong antijamming capability, simple programming.It substitutes relay to perform logic, timing, counting and sequential control work(
Can, establish flexible programmable control system.The functional analysis realized by packing machine can obtain, which is mainly digital quantity control
System is, it is necessary to 21 digital input amounts, 15 digital outputs.It is required according to the quantity of input/output signal, type, control, together
When by I/O points 20%-30% reserve level principle, select siemens PLC SMART PLC, CPU model ST60, tool
There are 36 digital input points, 24 digital output points.The key of input/output signal wiring is closed circuit to be formed.Number
Amount input is all 24V direct current signals, supports source type and the input of leakage type, i.e., the sensor signal exported corresponding to NPN and positive-negative-positive.
The power supply of sensor is 24V, then NPN type output is 0V, and positive-negative-positive output is 24V.PLC is accessed, is exported if NPN type, then
The COM terminations 24V of PLC inputs；Similarly, exported if positive-negative-positive, the input terminal of PLC should meet 0V.Due to all input points of PLC
A common port is shared, therefore required sensor must select same type（NPN type or positive-negative-positive）.This packing machine uses NPN type
Sensor, therefore public termination+24V.Photoelectric sensor predominantly detects drug, specification, carton close to detection devices such as switches
Whether there is, if lack medicine, lack box, lack book, detect mounted box quantity and push rod failure etc., be not in the Automation Design of packing machine
It can or lack.
The packaging speed of medicament packing machine is an importance of Design of Packaging Machine.Packaging speed is depended primarily upon and watched
Take the speed of service of motor.Therefore, packaging speed is mainly the control to main servo motor operation speed.Servomotor is automatic
In control system, as executive component, the angular displacement or angular speed that the electric signal received is converted on motor reel export.
Servomotor can make speed control, and positional precision is very accurate, meet the control of Key works Drug packing position and the requirement of speed control.It watches
It takes motor and often rotates an angle, the pulse that the encoder on main shaft can all send corresponding number sends PLC controller to.And divide
The speed of service of medicine servo depends not only on the speed of main motor, also related with the medicine plate number that every box medicine is filled.S7-200
The at most integrated 3 road high-speed pulse outputs of the CPU module body of SMART PLC, frequency are up to 100kHz, support PWM/PTO outputs
Mode and multi-motion modes can freely set motion envelope.It is equipped with and facilitates easy-to-use guide that function is set, quick realize sets
The functions such as standby speed governing, positioning.If being 160r/min by the maximum speed of box packing machine, servomotor, which rotates one week, needs 10000
Pulse calculates, and the output frequency of high-speed pulse is：160/60×10000=26.7kHz.PLC highest output frequencies are
100kHz can be met the requirements completely.The resolution ratio of encoder is 1000p/r in this packing machine, and box packing machine maximum speed is
160r/mi n, then the output pulse frequency of encoder be：160/60×1000=2.67kHz.And high-speed counter is single-phase most
Big input frequency is 60kHz, and two-way/orthogonal maximum input frequency is 40kHz, is equally met the requirements.
The control system of packing machine select Siemens's SMART-700 IE touch-screens realize equipment operation is carried out monitoring and
System parameter setting is completed in prompting, and to alarming during equipment fault.Touch-screen and PLC pass through one with Ethernet interface
Root cable can communicate.
Intelligent medicament packing machine based on S7-200 SMART PLC has automatic detection function：Drug dispensing is detected when powering on to watch
Take whether motor looks in origin and automatically origin；Safety condition cannot start shooting when being not achieved；Can realize without medicine plate do not play specification,
Carton is not descended；More plate medicines may be filled in one box medicine, can detect whether to lack medicine automatically；Insufficient raw material alarms and positions shutdown；It lacks and says
Automatic rejection when bright book or scarce medicine；Medicine box positioning is can't detect to shut down；Servomotor failure alarm, emergency stop；Packing machine is set
There is tri coloured lantern tower to indicate alarm condition, and warning message is shown on the touchscreen.It has friendly man-machine interface：Realize three
Grade decoding, the people of different identity have packing machine different operating rights, and operator possesses basic operating right, production department
Door is it can be seen that yield, engineering department can change parameter；Can the operating status of equipment be monitored and controlled in real time, be realized
The various functions such as parameter setting, data acquisition, speed control and signal alarm.Its mounted box speed is high：Desin speed highest can
Up to 160 boxes/min, speed-regulating range width, to adapt to the product of different sizes, technique and mounted box speed.There are two types of its methods of operation：
Automatic running, manually debugging." crawl " is equipped under each way again to improve the flexibility of equipment debugging.
As shown in figure 3, program design is typical sequential control, using SIEMENS PLC special-purpose software STEP 7-
MicroWIN SMART carry out program composition.Packing machine control program is using modularization idea, and clear in structure, debugging is convenient.Root
Function, the difference of control object realized according to modules, packing machine are divided into automatic running, manually operation, drug dispensing servo electricity
Machine looks for the subprograms such as origin, shift control, counting, alarm.Wherein, Serve Motor Control, the angle control of encoder, station prolong
When control etc. as weight difficulties, be analyzed as follows：PLC controls servomotor using high-speed pulse output.Servomotor receives
To 1 pulse, the corresponding angle of 1 pulse will be rotated, so as to fulfill displacement.S7-200 SMART provide pulsewidth modulation
（PWM）Motor is taken with the control of kinematic axis two ways, " guide PWM " configuration PWM is provided, " movement guide " configuration kinematic axis.For
During PWM operation configuration outputs, the cycle of output is fixed, and pulsewidth or pulse duty factor can be controlled by program.Pulsewidth
Variation can be used for controlling speed or position in the application.Kinematic axis provides the list with integrated direction controlling and disabling output
Train of pulse exports.Kinematic axis further includes programmable input, and it is more including referring to point search automatically to allow CPU configurations
Kind operation mode.Kinematic axis provides unified solution party for the speed and position opened loop control of stepper motor or servomotor
Case.This packing machine controls servomotor using movement guide come configuration kinematic axis.Digital output Q0.0 configurations are motion control
The output of axis 0 drives main servo motor；Q0.2 configurations are the output of motion control axis 2, drive drug dispensing servomotor.Motor
Direction signal is fixed inside PLC, and 0 and 2 corresponding direction signal control point of motion control axis is respectively Q0.2, Q1.0.For
The precision and harmony of packing machine are improved, the movement for examining medicine, inspection book, inspection box and drug dispensing servo is all in certain angular range
Interior completion.The umber of pulse that encoder is sent out and the linear correspondence of rotational angle.Therefore angle of rotation can be acquired by umber of pulse
Degree, and then controlled.Its angle is determined according to the position of medicine plate, specification, carton detection device in a station
Scope.If not detecting corresponding object in angular range, it is considered as object missing, performs alarm or shutdown operation.
The pulse frequency that encoder is sent is high, can lose counting pulse using common counter, and high-speed counter can be to common
The helpless event of counter is counted.Encoder, which often encloses, sends a certain number of counting pulses and a reset pulse,
Input as high-speed counter.Station delay is that delay station, which performs, to be inhaled book, inhales box, binder and rejecting after detecting medicine
Operation.Station delay is realized by shift register bit instruction SHRB.
Touch-screen is the interface between operator and equipment, and the design at interface is realized by Wincc.Wincc is provided
Various control device, graphical control and functional unit make process visualization, realize control of the operator to process, and display is alarmed,
Recording process value and warning message realize parameter setting and management.Software sets different operations close for different operating personnel
Code and operating right, maloperation is caused to prevent uncorrelated personnel.The design of touch screen interface mainly includes login interface, automatic fortune
Row interface, manual runnable interface, parameter setting interface etc..It is as follows：1. variable external variable is used to cause HMI device
It can be communicated between PLC.It is the image of the storage location defined in PLC, either touch-screen or PLC, all
Access can be written and read to the storage location, data type depends on controller PLC.Built-in variable is stored in HMI device
In, it is not connected with PLC, therefore only HMI device can be written and read built-in variable access.If one is created in Wincc
A external variable, it is necessary to specify the address identical in PLC program for it, input of the realization touch-screen to PLC parameters, state,
The output of currency and alarm signal controls start-stop of motor etc..2. it creates picture picture configuration show including text, is defeated
Enter/output area, button, indicator light etc., it is used to implement touch-screen and the parameter of PLC is inputted, status display, control device are opened
Pass and display alarm information etc..3. creating alarm system alarm includes two kinds of self-defined alarm and system alarm.Packing machine is set
What is used in meter is discrete magnitude alarm, and mainly pressure switch, safety switch, electric lock switch, lack medicine, lack box, lack book, emergency stop report
Alert, by alarming, view displays it.4. the time and date that communication touches screen display is the communication of using area pointer
Read what the time in PLC obtained.There are many touch-screens and plc communication agreement, this packing machine uses TCP/IP（Ethernet）Association
View, can be communicated by a cable, convenient and efficient.
Claims (6)
1. a kind of intelligent medicament packing machine based on PLC, mainly by siemens PLC SMART PLC, Siemens SMART-700
The compositions such as IE touch-screens, servomotor, photoelectric sensor, close switch, vacuum valve, solenoid valve, have automatic detection function, have
Two kinds of man-machine interface, mounted box speed height, automatic running and manual the debugging operational modes of close friend.
2. a kind of intelligent medicament packing machine based on PLC according to claim 1, it is characterized in that the main servo electricity
Machine, drug dispensing servomotor, vacuum pump, vacuum valve, cylinder, photoelectric detection switch, close switch etc. are all controlled by master controller PLC
System.
3. a kind of intelligent medicament packing machine based on PLC according to claim 1, it is characterized in that the PLC selects west
Sub- S7-200 SMART PLC, CPU the model ST60 of door, using NPN type sensor, therefore public termination+24V.
4. a kind of intelligent medicament packing machine based on PLC according to claim 1, it is characterized in that the control of the packing machine
System processed selects Siemens's SMART-700 IE touch-screens to realize and equipment operation is monitored and prompted, and completes systematic parameter and sets
It puts, and to alarming during equipment fault.
5. a kind of intelligent medicament packing machine based on PLC according to claim 1, it is characterized in that the packing machine control
System carries out program composition using SIEMENS PLC special-purpose software STEP 7-MicroWIN SMART.
6. a kind of intelligent medicament packing machine based on PLC according to claim 1, it is characterized in that the touch screen interface
Design realized by Wincc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045030.XA CN108100376A (en) | 2016-11-24 | 2016-11-24 | A kind of intelligent medicament packing machine based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611045030.XA CN108100376A (en) | 2016-11-24 | 2016-11-24 | A kind of intelligent medicament packing machine based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108100376A true CN108100376A (en) | 2018-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611045030.XA Pending CN108100376A (en) | 2016-11-24 | 2016-11-24 | A kind of intelligent medicament packing machine based on PLC |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847200A (en) * | 2019-01-31 | 2019-06-07 | 中国科学院近代物理研究所 | A kind of vacuum monitoring system for medical heavy ion avcceleration |
| CN110888386A (en) * | 2019-11-07 | 2020-03-17 | 中国船舶重工集团公司第七一九研究所 | Large-traffic aerosol sample control system based on PLC |
-
2016
- 2016-11-24 CN CN201611045030.XA patent/CN108100376A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109847200A (en) * | 2019-01-31 | 2019-06-07 | 中国科学院近代物理研究所 | A kind of vacuum monitoring system for medical heavy ion avcceleration |
| CN110888386A (en) * | 2019-11-07 | 2020-03-17 | 中国船舶重工集团公司第七一九研究所 | Large-traffic aerosol sample control system based on PLC |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |
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| WD01 | Invention patent application deemed withdrawn after publication |