CN107867448A - A kind of intelligent medicament packing machine based on the SMART PLC of S7 200 - Google Patents
A kind of intelligent medicament packing machine based on the SMART PLC of S7 200 Download PDFInfo
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- CN107867448A CN107867448A CN201610847999.2A CN201610847999A CN107867448A CN 107867448 A CN107867448 A CN 107867448A CN 201610847999 A CN201610847999 A CN 201610847999A CN 107867448 A CN107867448 A CN 107867448A
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- plc
- packing machine
- smart
- medicine
- intelligent medicament
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Classifications
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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
- B65B57/18—Automatic control, checking, warning, or safety devices causing operation of audible or visible alarm signals
-
- 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
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/003—Packaging lines, e.g. general layout
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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 the SMART PLC of S7 200 has been invented.The packing machine is attached most importance to Serve Motor Control and shift control, with reference to the IE of touch-screen SMART 700 display, parameter setting and monitoring function, realizes controllability, the visualization of packaging process.After tested, the packing machine meets all technical of intelligent medicament packing machine, stable good.
Description
Art
The present invention relates to a kind of packing machine, more particularly to a kind of intelligent Key works Drug packing based on S7-200 SMART PLC
Machine.
Background technology
Medicament packing machine is the comprehensive stronger engineering goods of electromechanical integration, although the domestic medicine box packing machine in China exists
Quick development is obtained in recent ten years, but its problems faced is still many.With CGMP
(CGMP) the control quality increase of production procedure is required, a pharmaceutical manufacturing process more automated turns into key.Improve bag
The speed and control accuracy of installation are Packaging Machinery in Our Country urgent problems to be solved, and the development side of package packing machine from now on
To.Medicament packing machine is not only completed servomotor switch crawl and automatically controlled, and to carry out photoelectricity positioning, speed is shown,
Product counting, bad part eject etc. control.It can not only improve operating 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 is comprehensive to meet that different industries, different clients, difference are set
Standby various demands.Standard type can meet there is larger demand to I/O scales, logic control is more as expansible CPU modules
Complicated application；And economical CPU modules directly meet relatively simple demand for control by unit body.
The content of the invention
The invention aims to improve the efficiency and precision of medicament packing machine, devise one kind and be based on S7-200
SMART PLC intelligent medicament packing machine.
The technical solution adopted for 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
SMART-700 IE touch-screens, servomotor, photoelectric sensor, proximity switch, vacuum valve, magnetic valve etc. form, and have automatic
Detection function, the man-machine interface for having close friend, mounted box speed are high, two kinds of operational modes of automatic running and manual debugging.
Described main servo motor, divide medicine servomotor, vavuum pump, vacuum valve, cylinder, photoelectric detection switch, close to opening
Pass etc. is all controlled by master controller PLC.
Described PLC selects siemens PLC SMART PLC, its CPU model ST60, using NPN type sensor,
Therefore public termination+24V.
The control system of described packing machine is realized to run equipment from Siemens's SMART-700 IE touch-screens and carried out
Monitoring and prompting, complete system parameter setting, and to being alarmed during equipment fault.
Described packing machine control system enters stroke using SIEMENS PLC special-purpose software STEP 7-MicroWIN SMART
Sequence is worked out.
The design of described 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, man-machine 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, complete property indices.
Brief 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 workflow diagram.
Embodiment
As shown in figure 1, automatic box packing machine is mainly touched by siemens PLC SMART PLC, Siemens SMART-700 IE
Touch the composition such as screen, servomotor, photoelectric sensor, proximity switch, vacuum valve, magnetic valve.Its operation principle is as follows：Packing machine control
Two servomotors are made, main motor drives whole package packing machine motion, divides medicine servomotor then to drive a point medicine device to put medicine
Enter in medicine conveying boat；To improve production efficiency, using the blanking simultaneously of two feed bins.Detection means photoelectric sensor detects defeated
Send the medicine in ship, control vacuum valve inhales lower specification, is sent to after paper folder folds and medicine plate, the parallel groove of medicine box
It is interior, wait same medicine plate to be pushed into medicine box together；Be delayed certain station, and control vacuum valve inhales next carton from article storage rack, then
Unscrew, it is transported to before medicine plate and specification, 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 discharging opening of machine, related position is bent over, folds, filled in
Real, box is sealed completely；To realize the versatility of medicament packing machine, more plate medicines are filled in a box medicine sometimes, 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, delay station is rejected；
Simultaneously tally function is realized above conveyer belt equipped with photoelectric sensor；Cylinder realizes bad part eject function.This completes whole
Individual 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, dividing medicine servomotor, vavuum 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 execution logic, timing, counting and sequential control work(
Can, establish flexible programmable control system.The functional analysis realized by packing machine can obtain, and the packing machine is mainly digital quantity control
System is, it is necessary to 21 digital input amounts, 15 digital outputs.Required according to the quantity of input/output signal, type, control, together
When counted by I/O 20%-30% reserve level principle, from siemens PLC SMART PLC, its 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.Numeral
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, PLC input 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.The detection means such as photoelectric sensor, proximity switch predominantly detect medicine, specification, carton
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
Can or it lack.
The packaging speed of medicament packing machine is an importance of Design of Packaging Machine.Packaging speed is depended primarily on 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.Watch
Take motor and often rotate an angle, the pulse that the encoder on main shaft can all send respective amount sends PLC to.And divide
The speed of service of medicine servo depends not only on the speed of main motor, also relevant with the medicine plate number that every box medicine is filled.S7-200
The at most integrated 3 road high-speed pulse outputs of SMART PLC CPU module body, frequency are up to 100kHz, support PWM/PTO outputs
Mode and multi-motion modes, motion envelope can be freely set.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 maximal rate 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, it can meet to require completely.The resolution ratio of encoder is 1000p/r in this packing machine, and box packing machine maximal rate 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 incoming frequency is 60kHz, and two-way/orthogonal maximum incoming frequency is 40kHz, same to meet to require.
The control system of packing machine realized from Siemens SMART-700 IE touch-screens equipment operation is carried out monitoring and
Prompting, system parameter setting is completed, and to being alarmed during equipment fault.Touch-screen and PLC carry Ethernet interface, pass through one
Root netting twine can be communicated.
Intelligent medicament packing machine based on S7-200 SMART PLC has automatic detection function：Detection divides medicine to watch when upper electric
Take whether motor looks in origin and automatically origin；Safety condition can not start shooting when not reaching；Can realize without medicine plate do not play specification,
Carton is not descended；More plate medicines may be filled in one box medicine, can the whether scarce medicine of automatic detection；Insufficient raw material is alarmed and positions shutdown；Lack and say
Automatic rejection when bright book or scarce medicine；Medicine box positioning is can't detect to shut down；Servomotor failure alarm, jerk；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
Level decoding, the people of different identity have different operating rights to packing machine, and operator possesses basic operating right, production department
Door is it can be seen that yield, engineering department can change parameter；The running status of equipment can 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.Its method of operation has two kinds：
Automatic running, manually debugging." crawl " is provided with 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 uses modularization idea, clear in structure, and debugging is convenient.Root
Function, the difference of control object realized according to modules, packing machine are divided into automatic running, run manually, divide medicine servo electric
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 is using high-speed pulse output control servomotor.Servomotor receives
To 1 pulse, angle corresponding to 1 pulse will be rotated, so as to realize displacement.S7-200 SMART provide pulsewidth modulation
（PWM）Motor is taken with the control of kinematic axis two ways, there is provided " guide PWM " configuration PWM, " motion 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
Change 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 also includes programmable input, it is allowed to by CPU configurations be including it is automatic refer to point search including it is more
Kind operator scheme.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 motion guide come configuration kinematic axis.Digital output Q0.0 configurations are motion control
The output of axle 0, drive main servo motor；Q0.2 configurations are the output of motion control axle 2, and driving divides medicine servomotor.Motor
Direction signal is fixed inside PLC, and direction signal control point corresponding to motion control axle 0 and 2 is respectively Q0.2, Q1.0.For
The precision and harmony of packing machine are improved, inspection medicine, the motion for examining book, examining box and dividing medicine servo are all in certain angular range
Interior completion.The umber of pulse that encoder is sent out and the linear corresponding relation of rotational angle.Therefore angle of rotation can be tried to achieve by umber of pulse
Degree, and then be controlled.Its angle is determined according to the position of medicine plate, specification, carton detection means 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 count 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 number of count pulse 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 its 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, display alarm,
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..Comprise the following steps that：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, its 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 access to built-in variable.If one is created in Wincc
Individual external variable, it is necessary to for its specify with identical address in PLC program, realize input of the touch-screen to PLC parameters, state,
The output of currency and alarm signal, the start-stop of controlled motor etc..2. create picture picture configuration show including text, be defeated
Enter/output area, button, indicator lamp etc., for realizing that touch-screen inputs to PLC parameter, status display, control device are opened
Pass and display alarm information etc..3. creating warning 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, mainly pressure switch, safety switch, electric lock switch, scarce medicine, scarce box, scarce book, jerk 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.Touch-screen has a variety of with plc communication agreement, and this packing machine uses TCP/IP（Ethernet）Association
View, can be communicated by a netting twine, convenient and swift.
Claims (6)
- A kind of 1. intelligent medicament packing machine based on S7-200 SMART PLC, mainly by siemens PLC SMART PLC, west The compositions such as the sub- SMART-700 IE touch-screens of door, servomotor, photoelectric sensor, proximity switch, vacuum valve, magnetic valve, have Automatic detection function, the man-machine interface for having close friend, mounted box speed are high, two kinds of operational modes of automatic running and manual debugging.
- 2. the intelligent medicament packing machine according to claim 1 based on S7-200 SMART PLC, it is characterized in that described Main servo motor, divide medicine servomotor, vavuum pump, vacuum valve, cylinder, photoelectric detection switch, proximity switch etc. all by main control Device PLC is controlled.
- 3. the intelligent medicament packing machine according to claim 1 based on S7-200 SMART PLC, it is characterized in that described PLC selects siemens PLC SMART PLC, its CPU model ST60, using NPN type sensor, therefore public termination+24V.
- 4. the intelligent medicament packing machine according to claim 1 based on S7-200 SMART PLC, it is characterized in that described The control system of packing machine is realized from Siemens's SMART-700 IE touch-screens and equipment operation is monitored and prompted, and completes System parameter setting, and to being alarmed during equipment fault.
- 5. the intelligent medicament packing machine according to claim 1 based on S7-200 SMART PLC, it is characterized in that described Packing machine control system carries out program composition using SIEMENS PLC special-purpose software STEP 7-MicroWIN SMART.
- 6. the intelligent medicament packing machine according to claim 1 based on S7-200 SMART PLC, it is characterized in that described The design of touch screen interface is realized by Wincc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847999.2A CN107867448A (en) | 2016-09-26 | 2016-09-26 | A kind of intelligent medicament packing machine based on the SMART PLC of S7 200 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847999.2A CN107867448A (en) | 2016-09-26 | 2016-09-26 | A kind of intelligent medicament packing machine based on the SMART PLC of S7 200 |
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| Publication Number | Publication Date |
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| CN107867448A true CN107867448A (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610847999.2A Pending CN107867448A (en) | 2016-09-26 | 2016-09-26 | A kind of intelligent medicament packing machine based on the SMART PLC of S7 200 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2016-09-26 CN CN201610847999.2A patent/CN107867448A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Application publication date: 20180403 |